JPH0449766A - Book original reading device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (& Field of Application of Rakudo) The present invention relates to a book manuscript reading device such as a copying machine and a facsimile machine having a page-turning reading function of a book manuscript.

(Prior Art) As a document reading device in a copying machine, facsimile, etc., a sheet document is automatically conveyed to a document reading position, the document information is read, and the read document is automatically ejected from the document reading position. An automatic document feeder (ADF) is known.

In this way, if the document is a sheet document, the document information can be automatically read by installing an ADF, but if the document is a book document, an automatic page turning mechanism can be implemented. Due to the current situation, it is currently only possible to turn the pages of a book manuscript manually.

In view of the current situation, various methods and means have been proposed to automate the time-consuming reading of book manuscripts.

However, many of the above-mentioned conventional techniques are only proposals based on ideas, and have not yet reached a level where they can be realized.

Conventional techniques related to automatic reading of the book MH include, for example, JP-A-54-21836 ``Reading device for copying machine'' and JP-A-61-284492 ``Automatic page changing device for book-like originals''.

JP-A No. 56-60294 ``Book page turning device'', JP-A No. 63-47197 [Automatic page turning device J, etc. have been proposed.

In this way, there are many proposals that are beyond the realm of ideas. There is also a proposal that has the possibility of are doing.

However, when a two-page spread book document is placed face down and moved as in this device, the surface of the document will rub against the surface of the document due to its own weight, causing the page turning operation to be affected. The disadvantage is that it is unreliable.

Furthermore, this conventional device has the disadvantage that the structure of the page turning device alone is quite large.

In addition, among the above-mentioned conventional technologies, there is also a page-turning device that is configured to turn a spread book document with the document information side facing upward and turn the page using negative pressure caused by suction, such as a roller or an arm. Conventional page turning devices have the disadvantage that the large page turning device is configured to move in the space above the book document, resulting in a fairly large device.

(Problem to be Solved by the Invention) By the way, in this type of book manuscript reading device, the page turning means and the manuscript reading means are scanned and moved with respect to the book manuscript placed on the manuscript placement surface. .

Therefore, in this type of book original 8i reading device, in order to realize stable scanning of these page turning means and document reading means, at least during the operation of these means.

And, to prevent the book manuscript from being touched from outside,
The main body of the device must be configured to be closed.

As described above, as a structure for closing the main body of the apparatus, for example, as in the conventional ADF equipped with the pressure plate mode, the document a.
This can be realized by configuring the upper part of the apparatus main body to be openable and closable with respect to the lower part of the apparatus main body with the mounting surface in between.

However, in this type of book manuscript reading device, as described above, simply configuring the upper part of the main body of the device to be openable and closable with respect to the lower part of the main body does not allow the operation of the page turning means and the document reading means. At startup, there is a risk that the top of the device body may remain open or that page turning and scanning of book manuscripts may be started while the top of the device body is not completely closed. There is a high risk of stabilization and causing damage to the pages of the book manuscript.

In addition, in this type of book document reading device, if the book document placed thereon is too thick, the upper part of the main body of the device will not be fully closed, making it difficult to turn the pages of the book document and scan the document. There is a problem that is causing problems.

The present invention has been made in view of the above-mentioned points, and its purpose is to stabilize page-turning reading scanning by prohibiting page-turning reading scanning of book manuscripts when the upper part of the main body of the apparatus is open. Also, it is an object of the present invention to provide a book manuscript reading device capable of preventing damage to the pages of a book manuscript.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has disclosed that the pages of a book manuscript placed face-up in a document reading position on a document placement surface are read one page at a time. It has a page turning means for turning pages, and a manuscript reading means for reading manuscript information by scanning the spread manuscript surface of the book manuscript,
In a book manuscript reading device in which a lower part of the apparatus main body is configured to be openable and closable with respect to the lower part of the apparatus main body, an opening/closing detection means for detecting an opening/closing state of the upper part of the apparatus main body, and this opening/closing detection means are included in the second part of the apparatus main body. The apparatus is configured to include a start canceling means for canceling the start of the page turning means and document reading means when an open state is detected.

In order to solve the above-mentioned problems, the present invention also provides a page turning means for turning over the pages of a book manuscript placed face-up in a facing position at a manuscript reading position on a manuscript placing surface one by one; A book document reading device comprising a document reading device that scans the open document surface of a book document to read document information, and in which the top of the device main body is configured to be openable and closable relative to the bottom of the device main body. The apparatus is configured to include an opening/closing detection means for detecting an open/closed state of the upper part of the main body, and a warning display means for displaying a warning when the opening/closing detecting means detects the open state of the upper part of the apparatus main body.

(Function) According to the present invention, when the opening/closing detection means for detecting the open/closed state of the upper part of the apparatus main body detects the open state of the upper part of the apparatus main body, the start canceling means controls the page turning. means, and.

Starting of the document reading means is canceled.

Further, according to the present invention, when the opening/closing detection means for detecting the open/closed state of the upper part of the apparatus main body detects the open state of the upper part of the apparatus main body, the warning display means displays a warning. .

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

However, in order to avoid complicating the explanation, illustrations and disclosures thereof will be omitted to avoid complicating the explanation, as well as the configuration and operation within the range that can be clearly recalled from the description of this specification, as well as the above-mentioned and other objects and novel features of the present invention. , or simplify it.

First, with reference to FIG. 1, the structure around the turning conveyance belt in the document reading apparatus according to the present invention will be described.

FIG. 1 shows one embodiment of the present invention. 1 is a schematic cross-sectional view of a multi-function document scanner A (hereinafter referred to as "7MFDS").

In FIG. 1, the turning conveyor belt 8 is
2. Tension roller 13. First belt support roller 97
, second belt support roller ρ8, third belt support roller 9
9, supported by a fourth belt support roller 100 and a fifth belt support roller 101.

At this time, the turning conveyor belt 8 carries the turning roller 2 of the page turning reading unit 1, the first bias roller 3, the 10th roller 4, the 20th roller 5, . The page turning/reading unit 1 is supported via a presser roller 6 so as to surround the page turning/reading unit 1 .

The tension roller 13 is pulled leftward in FIG. 1 by the belt tension spring 112.
Appropriate tension is applied to the turning conveyor belt 8 to press the document surface of the book document 92.

Belt tension sensor 32 has 5 tension rollers 13
The tension of the conveyor belt 8 is detected from the mobile company.

On the other hand, a sheet original 2
a sheet original tray 94 for setting the sheet original 200; and a sheet original side guide 93 for adjusting the setting position of the sheet original 200 in the side direction.

Paper ejection tray 2 on which the ejected sheet original 200 is placed
3 are arranged respectively.

In addition, in the paper feed section 21 of the MFDS (upper right in Fig. 1),
A sheet document sensor 25 that detects whether or not a sheet document 200 is set, a paper feed roller 96 and a paper feed separation pad 95 that separate and feed the sheet document 200 one by one, and a paper feed that measures the timing of feeding the sheet document 200. A sensor 26 is provided, and a first conveyance guide 108 and a second conveyance guide 10 that constitute a conveyance path for the sheet original 200 are provided.
9 are arranged.

Further, a second bias roller 11 for charging the sheet document 200 when conveying the sheet document 200 is provided on the outside of the flip-up conveyance belt 8 slightly to the left of the belt support roller 97, and a bias opposing roller for support is provided inside the second bias roller 11 for charging when conveying the sheet document 200. There are 102.

Further, at the lower end of the second conveyance guide 109, there is a 1112 conveyance guide claw 115, which assists in conveyance of the sheet document 200.

Furthermore, the fourth belt support roller 100 has a sixth opposing date -
A seventh opposing roller 106 is attached to the fifth belt support roller 101, and a paper ejection roller 107 is attached to the drive roller 12.
They are respectively disposed on the outside of the flip-up conveyor belt 8, sandwiching the flip-up conveyor belt 8.

Further, a sheet document 200 is placed on the outside of the turning conveyor belt 8 from the third belt support roller 99 to the drive roller 12.
A third conveyance guide 110 forming a conveyance path is provided.

Here, between the second belt support roller 98 and the third belt support roller 99, [the document placement surface 116 on the top surface of the stacking table 18 is used as a conveyance path for the sheet document 200.

This document placement surface 116 is formed in black in order to facilitate detection of the leading edge of the book document 92 when detecting the size of the book document 92 by pre-scanning.

On the other hand, in the paper discharging section 22 of the MFD S at the upper left in FIG. ing.

Furthermore, a paper discharge separating claw 111 is formed below the paper discharge port 117 of the paper discharge section 22, and assists in smooth paper discharge of the sheet document 200.

A second belt support roller 98 is attached to the M stacking table 18 of the MFDS.
A fourth opposing roller 103 is disposed below, a fifth opposing roller 104 is disposed below the third belt support roller 99, and the page turning reading unit 1 is at the home position 1-A. The first opposing roller 15 is located below the reroller 2 and the second opposing roller 1 is located below the pressing roller 6.
6, a second reading sensor unit 14 is disposed below the first reading sensor unit 9, respectively.

Furthermore, when the page-turning reading unit 1 is at the end position [(stop position of the page-turning reading unit 1 in the reading mode of the sheet original 200]) 1-C, the lower side of the first reading sensor unit 9 is A book size upper limit sensor 33 is provided below the third opposing roller 17 and the turning roller 2, respectively.

Furthermore, a book manuscript 9 is placed in the center of the manuscript placement surface 11-6.
A central reference positioning portion 24 is formed for determining the placement position of No. 2.

The center reference positioning section 24 includes a center positioning plate 113 that contacts the spine of the book document 92 when the book document 92 is placed thereon, and a center positioning plate 113 that provides a tendency to rise relative to the center positioning plate 113. Spring 11
4 and a book document sensor 27 that detects the amount of downward displacement of the central positioning plate 113 when the book document 92 is placed thereon.

At the bottom of the document table 18 configured in this way, an MFDS
A stand 91 is provided to support the device substantially horizontally.

On the other hand, a transport unit locking device 140 having a built-in transport unit lock sensor 31 is disposed on both sides of the portion of the transport unit 19 that contacts the document table 18, and controls the open/closed state of the transport unit l9 and the document table 18. Detected.

As mentioned above, this MFDS is a sheet material 1ii2
It is configured as a document reading device that has both the automatic document feeding/reading function of 00 and book document reading and automatic page turning functions.

Next, the configuration of the drive system in this document reading device will be described with reference to FIGS. 2 to 4.

FIG. 2 is a schematic cross-sectional view of the drive system of the MFDS.

FIG. 3 is a schematic plan view of the drive system of the MFDS.

FIG. 4 is a perspective view of the end of the page turning reading unit 1. FIG.

2 to 4, in the page turning reading unit 1, the scanning vibrator 51 of the turning unit drive plate 49 is inserted into a pair of scanning rods 50 that are horizontally suspended in parallel to the front side and the back side of the MFDS. As a result, the MFDS is slidably supported along the left and right direction of the MFDS.

The ends of each scanning rod 50 are fixed to the right side plate 58 of the transport section and the left side plate 59 of the transport section of the MFDS.

Further, as shown in FIG. 3, a first shaft 64 and a second shaft 65 are rotatably supported between the front side plate 56 of the conveyance unit and the rear side plate 57 of the conveyance unit.

These first shaft 64 and second shaft 65 include w.
! One A driving pulley 62 and one driven pulley 63 are fixed on the front side and one on the back side, and these driving pulley 62 and driven pulley 63 are used as a pair, and the two turning unit driving belts 52 However, each is suspended.

As shown in FIGS. 3 and 4, this page turning reading unit 1 is constructed by a drive belt fixing portion 53 of a turning unit drive plate 49, and a drive belt fixing plate 54 and a drive belt fixing screw 55. 52, and is driven by the rotation of this turning unit drive belt 52.

Further, a first gear 66 is fixed to the first shaft 64 on the back side thereof, sandwiching the rear side plate 57 of the conveying section, and this first gear 66 is fixed to the output shaft of the turning unit drive motor 60. The rotation of the turning unit drive motor 60 is transmitted to the second gear 67 and the drive pulley 62. Turning unit drive belt 52. driven pulley 63, and
The page turning reading units 1 are respectively driven.

On the other hand, as shown in FIG.
0 and the third shaft 121 fixed coaxially with the drive roller 1
2 and a fourth shaft 122 fixed coaxially with the paper feed roller 9
The seventh shaft 125 is coaxially fixed to the belt supporting roller 97, and the eighth shaft 126 is coaxially fixed to the first belt support roller 97.
They are each rotatably supported between a transport section front side plate 56 and a transport section rear side plate 57.

The fourth shaft 122 holds the rear side plate 57 of the conveying section,
A third gear 68 is fixed to the rear side thereof.

Further, the fourth gear 69 and the fifth gear 73 are coaxially fixed and rotatably supported.

Further, a sixth gear 74 fixed to the output shaft of the flip conveyor belt drive motor 61 is engaged with the fifth gear 73, and a fourth gear 69 is meshed with the third gear 68, so that the flip conveyor belt drive motor 61 The rotation of the conveyor belt 8 is sequentially transmitted, and the drive roller 12 is driven to rotate the turning conveyor belt 8.

In addition, as shown in FIGS. 2 and 3, the eighth shaft 1
26, a second paper feed pulley 1 is installed on the back side of the rear side plate 57 of the conveyance unit.
30 is connected to the first paper feed pulley 12 via a paper feed clutch 128 on the back side of the rear side plate 57 of the conveyance unit.
9 are fixed, respectively, and the second paper feed pulley 130
A paper feed drive belt 127 is connected to the first paper feed pulley 129 and the first paper feed pulley 129.
is suspended.

As a result, the rotation of the first belt support roller 97 caused by the rotation of the turning conveyor belt 8 is as follows.

The information is sequentially transmitted to the eighth shaft 126, the second paper feed pulley 130, the paper feed drive belt 127, and the first paper feed pulley 129.
The signal is transmitted to the input side of the paper feed clutch 128.

Further, the paper feed clutch 128 is activated by a control signal sent from the main control board 310 (see FIG. 50), and the seventh shaft 125 and the paper feed roller 96 are driven.

On the other hand, it is shown in FIG. The first opposing roller 15, the second opposing roller 16, and the third opposing roller 17 are synchronized with the turning conveyor belt 8 by a drive transmission mechanism (not shown).
Moreover, they are each driven at the same circumferential speed.

Next, the configuration of the page turning reading unit 1 will be explained with reference to FIGS. 1 to 4.

In Figures 1 to 4, the first turning unit side drawer 4
0 and the second turning unit side plate 41 are arranged opposite to each other at a position sandwiching the turning conveyor belt 8. Between the first turning unit side plate 40 and the second turning unit side plate 41, there is a , a turning roller 2, a first bias roller 3, a tenth roller 4, a twentieth roller 5, and a presser roller 6 are each rotatably supported.

The support structure for each of these rollers is the same.

Therefore, let us explain by taking No. 10-L4 as an example.

As shown in FIG. 5, the 10th shaft 123, which has both ends fixed to the first turning unit side plate 40 and the second turning unit side plate 41, is a hollow shaft. The pair of bearings 131 inserted into the hollow part of the -ra 4 and disposed on the fifth shaft 123 support both ends of the tenth-ra 4, so that it rotates relative to the fifth shaft 123. freely supported.

Here, these turning roller 2, first bias roller 3. 1st. The roller 4, the 20th roller 5, and the presser roller 6 do not rotate themselves, but are rotated only by the rotation of the turning conveyor belt 8.

Further, on the outside of the first turning unit side plate 40 and the second turning unit side plate 41, a rotation support rod 42 (configured in the same way on both sides) is provided at a longitudinally extending position of the first reading sensor unit 9 shown in FIG. ) are each supported for nine rotations.

Therefore, the support structure for only one side of the rotation support rod 42 will be explained. As shown in FIG. 4, the rotation support rod 42 has a sliding pipe 43. Second spring retaining claw 48
．． It is configured integrally with the upper limit detection section 76.

In FIG. 4, the tilt correction spring 44 is shown.

It is formed of a helical recoil spring, and its one end is fixed to the rotation support rod 42 and the other end is fixed to the first turning unit side plate 40.

This tilt correction spring 44 is in its natural state.

That is, when no external force is applied to the inclination correction spring 44, the axial direction of the sliding pipe 43 (vertical direction in FIG. 4) and the optical axis direction of the reading optical system of the first reading sensor unit 9 (the first The reading sensor unit 9 is configured to match the movement direction (details will be described later) with respect to the first turning unit side plate 40 and the second turning unit side plate 41.

As a result, when the first turning unit side plate 40 and the second turning unit side plate 41 rotate integrally around each rotation support rod 42.

By this tilt correction spring 44, these first turning unit side plates 40 and second turning unit side plates 41
A rotational force is always applied to return the first turning unit side plate 40 to the initial state, and the inclinations of the first turning unit side plate 40 and the second turning unit side plate 41 are corrected in a timely manner.

Moreover, the sliding pipe 43 is configured to slide smoothly on the sliding support rod 46, as shown in FIG.

The upper end of this sliding support rod 46 is an upper zero support plate 70.
Furthermore, the lower ends of the sliding support rods 46 are fixed to the lower rod support plate 71, respectively.

Further, a first spring retaining pawl 47 is formed on the upper Rondo support plate 70, and a second spring retaining pawl 48 is formed on the upper part of the sliding pipe 43. It was mounted between the sliding pipe 43 and the upper Rondo support plate 70 by means of a two-spring retaining pawl 48 . Both ends of the turning unit upper and lower springs 45 are respectively locked.

Here, the sliding pipe 43 is in a normal state.

Although it is in contact with the lower rod support plate 71, when the page turning reading unit 1 receives an external force, it resists the elasticity of the turning unit upper and lower springs 45 and moves upward along the sliding support rod 46 in FIG. Sliding.

At this time, a sliding force is acting on the N-movement pipe 43 to return it to the above-mentioned normal state due to the elasticity of the turning unit upper and lower springs 45, which constantly presses the second spring retaining pawl 48 downward.

Further, the upward sliding range of the sliding pipe 43 is determined by the scan cutoff sensor 34 disposed on the turning unit drive plate 49 detecting the upper limit detection section 76 provided on the sliding pipe 43. The upward sliding position of the sliding pipe 43 is set to be the limit position.

On the other hand, as shown in figure m4, the turning unit drive plate 49 is connected to the upper Rondo support plate 70. Lower Rondo support plate 71, first spring retaining pawl 47, scanning pipe 51. A drive belt fixing part 53, and.

It is formed integrally with the home detection filler 75.

Further, the drive belt fixing portion 53 of the turning unit drive plate 49 is fixed to the turning unit drive belt 52 by the drive belt fixing plate 54 and the drive belt fixing screws 55, as described above.

Furthermore, the scanning pipe 51 of this turning unit drive plate 49 is fitted to the scanning rod 50 so as to slide smoothly.

As a result, as described above, the turning unit drive belt 52 is driven, and the page turning reading unit 1 is
When the home position i[1-A is reached,
The home sensor 30 shown in FIG. 3 is configured to detect the home detection filler 75 of the scanning pipe 51.

Next, with reference to FIGS. 6 to 8, the configuration of the transport section locking device in this document reading apparatus will be described.

FIGS. 6 to 8 are schematic diagrams showing the configuration of one of the transport unit locking devices 140 (same configuration on both sides) disposed on both sides of the MFDS.

The transport section locking device 140 includes a lock release solenoid 132, a lock rod 134, and the like.

6 to 8, the lock release solenoid 13
2 is connected to one end of the lock release solenoid arm 133.

The other end of the lock release solenoid arm 133 is.

It is rotatably supported by one end of the lock rod 134.

Unlocking solenoid arm 13 of this locking rod 134
An electromagnetic lock 141 is arranged on the side of the side facing 3.

Further, at the other end of the lock rod 134, a lock pawl 134a is formed which is bent into a key pawl shape toward the side where the lock release solenoid arm 133 is disposed.

The lock rod 134 is rotatably supported by a rotating part 136, and the upper part of the rotating part 136 is connected to one end of the lock spring 135.

The other end of this lock spring 135 is connected to a part of the conveying section 19, thereby giving the lock rod 134 a clockwise rotational habit in the sixth rotation.

The locking rod 134 rotates due to its rotational behavior.

A lock claw stopper 137 disposed on the lower left side of the rotating portion 136 prevents the rotation portion 136 from being held at a predetermined angle.

On the other hand, on the side of the document table 18, a lock bin 139° and a lock section 138 in which a transport section lock sensor 31 is arranged are formed.

In FIG. 6, when the conveyor section 19 is closed while being pushed down, the lower end of the lock claw 134a of the lock rod 134 comes into contact with the lock pin 139, and the lock rod 134 moves to its rotating section 136 as shown in FIG. is rotated once counterclockwise using the axis of rotation.

From this state, when the conveyance section 19 is further closed, the eighth
As shown in the figure, the lock claw 134a of the lock rod 134 is caught on the lock bin 139.

[Transport unit] 9 is fixed to the document table 18.

Also, when the transport section 19 is locked, the lock rod 13
The locking claw 134a of 4 locks the transport section lock sensor 3.
1 is activated.

This unlocking of the transport section 19 is executed by pressing the oven key 620 on the operation display board 313 shown in FIG. 16.

That is, the open key 620 of the operation display board 313
When pressed, the lock release solenoid 132 is activated, and the lock rod 134 rotates counterclockwise about the rotating part 136, and the lock pawl 134a of the lock rod 134 is released from the a lock pin 139 to the outside (not shown). The transport section 19 is opened upward by the transport section opening/closing spring (see FIG. 10).

However, this open key 620 is programmed so that it does not operate (does not accept input) during a series of page turning scans of the book document 92, during reading scans, and when the sheet document 200 is being conveyed. It's haha.

In addition, in this state where the oven key 620 does not receive input, the electromagnetic lock 141 is activated, and the electromagnetic lock 141 causes the lock claw 34a to remain engaged with the lock bin 139. lock rod 13
The rotation of 4 is restricted.

The MFDS configured as described above is shown in FIGS. 9 and 10.
As shown in the figure, the printer 300 is used by being mounted on the top of the printer 300, for example.

FIG. 10 shows the transport section 1 of this MFDS as described above.
9 is shown in an open state.

Next, while referring to FIGS. 11 to 13.

The configuration of the first reading sensor unit 9 inside the page turning reading unit 1 in this document reading device will be explained.

11 is a perspective view of the vicinity of the end of the first reading sensor unit 9, FIG. 12 is a side view of the vicinity of the end of the first reading sensor unit 9, and FIG. 13 is a perspective view of the vicinity of the end of the first reading sensor unit 9. It is a detailed sectional view.

Both ends of this first reading sensor unit 9 are as follows.

Since both have the same configuration, the configuration of only one will be explained here.

As shown in FIG. 11, the first reading sensor unit 9 includes a reading sensor bracket 1 formed in a U-shape.
46, and is arranged to be vertically movable with respect to the reading sensor bracket 146.

The reading sensor bracket 146 has both ends connected to the first turning unit side plate 40 and the second turning unit side plate 41.
By being fixed to, it is configured integrally with the page turning reading unit 1.

A reading sensor stand 148 is fixed downwardly slightly inside the end of the reading sensor bracket 146.

The lower end of this reading sensor stand 148 is.

As shown in FIG. 13, the first reading sensor unit 9
It is fitted into a boss 149 formed at the end of.

As a result, the first reading sensor unit 9 is supported via the reading sensor stud 148 so as to be vertically movable with respect to the reading sensor bracket] 46.

Here, the reading sensor stud 148 and the boss 149 are configured to be prevented from coming off from each other by a flange-like hook formed at the lower end of the reading sensor stand 148.

Further, a reading sensor spring 147 is mounted between the base of the reading sensor stud 148 of the reading sensor bracket 146 and the base of the boss 149 of the first reading sensor unit 9. The force imposes a downward displacement habit on the first reading sensor unit 9.

As a result, this first reading sensor unit 9 is always located at the lowest part of the page turning reading unit 1,
For example, when the book original 92 is subjected to an external force due to irregularities on its surface, the book original 92 can be
It moves up and down smoothly along the four convexities etc. on the surface of 2.

Further, at the end of the first reading sensor unit 9, a first
As shown in FIG. 1, the reading sensor release solenoid 15 is
0 is installed.

As shown in FIG. 12, this reading sensor release solenoid 150 is fixed to the first turning unit side plate 40, and the page turning reading unit 1 is moved without the reading sensor unit 9 performing a document reading operation. 5. For example, during page turning operations, blank scanning of non-read pages, and return from sheet document scan mode, this reading sensor release solenoid 15 is activated.
0 is activated.

When this read sensor release solenoid 150 is activated, it resists the elasticity of the read sensor spring 147 and
The first reading sensor unit 9 is moved upward, and its document scanning surface is retracted from the surface of the document (by 100 liters).

This first reading sensor unit 9 is connected to the turning roller 2.
A signal from the encoder 152 generated by the rotation of the image sensor 152 is used as a reference signal for reading the image.

The turning roller 2 and the encoder 152 are in an arrangement as shown in FIG.

FIG. 14 shows a side view of the rear side of the turning roller 2. As shown in FIG.

In FIG. 14, at the rear end of the turning roller 2,
A crown-shaped fish 153 is provided.

The fissure 153 is configured by forming slits of the same width at equal intervals on the circumference.

The encoder 152 is fixed to the second turning unit side plate 41 so as to sandwich the fish 153 vertically.

As a result, this encoder 152 controls the turning roller 2
The fiber 153 periodically interrupts the detection optical path of the encoder 152 according to the rotation of the encoder 152.

A reference signal for image reading by the first reading sensor unit 9 is generated.

On the other hand, the positioning of the book document 92 with respect to the document table 18 is performed by the central reference positioning section 24 .

A detailed sectional view of this central reference positioning portion 24 is shown in FIG.

This central reference position U determining unit 24 serves as a reference position when scanning the book original 92 and when turning pages.

The center reference positioning section 24 is configured in a groove formed in the center of the document placement surface 116.

In this groove, a central positioning plate 113 is placed on the n-side 1 of the original paper.
16 so that it can be moved up and down.

The center positioning plate 113 is always given the habit of rising by a center positioning spring 114 disposed at its lower part.

The upward movement of the center positioning plate 113 due to this habit is caused by a stopper 1 formed at the edge of the groove on the document placement surface 116.
18, the stopper claw 119 of the central positioning plate 113 comes into contact with the center positioning plate 113, thereby stopping the movement at the position indicated by the broken line in FIG.

The book original 92 is set on the original placing surface 116 by placing the spine (binding portion) of the book original 92 on the center positioning plate 113 in the groove.

That is, when the spine (binding portion) of the book original 92 is placed on the center positioning plate 113 in the groove, the center positioning plate 113 is pushed downward by the book original 92's own weight.

As a result, the book document sensor 27 disposed on the side of the groove of the R surface 116 detects the movement of the central positioning plate 113, and the setting of the book document 92 is recognized.

By the way, on the entire surface of this document table 18.

An MFDS operation display board 313 is arranged (see FIGS. 9 and 10).

This operation display board 313 is as shown in FIG.
A large number of input keys are arranged.

The functions of these input keys will be explained in order below.

Start key 600 is pressed when instructing to start reading a document.

The enter key 601 is pressed to confirm the input when inputting a selection manually using the numeric keypad or on the liquid crystal display panel.

The numeric keypad 602 is used to set the number of copies to be printed and the number of pages to turn, etc. The 5 reading start page selection key 603 is used to set the number of pages to be printed, the number of pages to turn, etc. - "Right" A key for selecting which page to start reading from, and each time this key is pressed, the reading start page of the book manuscript 92 switches between the left and right pages.

The starting page for reading when this key is initially set is:
The "left" page is set, and whether the reading start page selected by this key is on the left or right side of the book manuscript 92 can be determined by the two reading start page display LEDs 6.
31 is displayed depending on which one is lit.

The total read page setting key 606 is pressed to set the total number of pages to be read when inputting the number of pages to be turned in the book document reading mode.

To set the total number of read pages of the book manuscript 92, press the total read page setting key 606 and press the numeric keypad 602.
After inputting the number of pages, it is confirmed by pressing the enter key 601, and this confirmed value is displayed on the liquid crystal display panel 630.

The book size selection key 607 is pressed to select either the "automatic book size recognition mode" or the "book size key manual mode" in the book document reading mode.

Also, each time this key is pressed up, the book size display LED 632 will change to "Auto", [Standard], or
9. Switch in the order of "indefinite form (m input)".

The mode displayed by this book size display LED 632 is selected.

When the book size selection key 607 is initially set, the display on the book size display LED 632 is "automatic", and the "automatic size recognition mode" is selected.

Here, book size key to manual mode.

There are ``Standard'' and ``Irregular (m input)'', and only when the book size is A5, BS, or A4, by selecting ``Standard'', you can change the book size using the standard book size selection key 619. Enables input.

Every time this standard book size selection key 619 is pressed up by one, the standard book size display LED 633 changes to “A”.
5", "B5", rA4J (7), and the selected book size is displayed! ! be recognized.

At the time of initial setting of this standard book size selection key 619,
Standard book size display LED633 display is rA4J
It becomes.

However, the book size here refers to the size of the cover of the book manuscript 92.

Here, if the book manuscript 92 has a size other than the standard book size described above, the book size selection key 607 allows
After selecting "Irregular shape (m input)" and inputting the vertical size and horizontal size (in meters) of the cent book manuscript 92 using the numeric keypad 602, press the enter key 601.
Press to confirm the book size.

When the size of the book document 92 is determined in this manner, the manually entered size value is displayed on the liquid crystal display panel 630.

The book binding mask area setting key 608 sets the non-reading area (mask area) from the center of the central reference positioning unit 24 to the "left (
-)" - Pressed to set the "Right (10)".

That is, when forming a mask area in the book binding part of the book original 92, first, use the book binding part mask area setting key 608 to set how many left and right pages of the book original 92 the mask area is to be formed. Next, enter the length (in units of work) of the set "left mask area (-) J" or "right mask area (+)" using the numeric keypad 60.
2, then press the enter key 601 to confirm this input value.

Once the mask area of the book original 92 is determined in this way, the input value is displayed on the liquid crystal display panel 630.

The value of the mask area at the time of initial setting of the book binding mask area setting key 608 is "±10 towns."

The reading area selection key 609 is used to select which of r single page (left) J, r single page (right), and r double page J is to be set as the reading area of book original 92 in the book original reading mode. Press F when selecting.

Every time this reading area selection key 609 is pressed once,
The display of the reading area display LED 636 is r page (left)
The selected reading area is displayed and recognized.

When the reading area selection key 609 is initially set, the reading area display LED 636 displays "both pages."

Here, when "single page (left)" is selected, only the left page of the book manuscript 92 is read and scanned, and the right page is not read and scanned.

Also, if "F piece page (right)" is selected here,
Only the right page of the book FA draft 92 is read and scanned, and the left page is not read and scanned.

The two-page spread continuous copying key 610 is used to select the "two-page spread continuous reading mode" of the book document reading mode and its "two-page spread continuous copying mode".
Pressed to instruct to print out the scanned document information at the same magnification when in "duplex mode".

The double-page spread continuous copying reduction key 61 instructs to print out the read M document information at a reduced magnification when the two-page spread continuous reading mode J of the book manuscript reading mode and its "double-sided mode" are selected. The setting of the reduction magnification of the document information at this time is performed by operating the print magnification key 614.

In addition, the standard reduction magnification at the time of initial setting of this two-page spread continuous shooting reduction key 611 is “Original size x 0.71 (A
The duplex mode selection key 612 set to ``3→A4/B4→f35)'' selects which side to display when the book document reading mode is ``duplex mode'' of ``two-page spread reading mode''. , you can also select which side to print with the "two-sided spread mode"
- Pressed to select from three duplex modes: ``Original duplex mode'' and ``Sequential duplex mode.''

Each time this duplex mode selection key 612 is pressed once, the duplex mode display LED 634 is displayed.

"Double-sided spread mode" ・[Original double-sided mode]
The mode is switched to "sequential duplex mode" and the selected reading area is displayed and recognized.

When the duplex mode selection key 612 is initially set, the duplex mode display LED 634 displays "original duplex mode".

Here, if "Two-sided spread mode" is selected,
Of the left and right pages of the spread-open book manuscript 92, double-sided printing is performed with the left page facing up and the right page facing down.

At this time, by pressing the reading start page selection key 603,
When the reading start purge of the hook original 92 is set to "right", the first print is a single-sided print.

In addition, when [Original double-sided mode] is selected here, the right page of both the left and right pages of the spread book manuscript 92 is turned face up, and the left page of the next page turned by the page turning operation is Double-sided printing is performed with the image facing down.

That is, in this "original double-sided mode", printing is performed in exactly the same manner as the binding of the book original 92 to be read.

At this time, by pressing the reading start page selection key 603,
When the reading start page of the book manuscript 92 is set to "right", the first print is a single-sided print, as in the case of the "two-sided spread mode".

Furthermore, if the "sequential duplex mode" is selected here, the page set with the reading start page selection key 603 is displayed on both the left and right pages of the spread book document 92, and the page is turned over. The next page turned over is turned over, and thereafter, double-sided printing is performed in the order in which the pages are read.

The two-page spread quick copy high-speed print setting key 613 is used to slow down or slow down the operation of the page-turning reading unit 1 near the binding section of the book document 92 when in the one-sided mode J of the two-page spread continuous reading mode of the book document reading mode. It is pressed to instruct continuous printing of both the left and right pages of the book manuscript 92 by continuously executing reading and scanning without stopping.

The print magnification key 614 is a key for setting the magnification ratio when magnifying and printing a read image.

When the print magnification key 614 is pressed, a preset magnification ratio is displayed on the liquid crystal display panel 630.

Here, to change the magnification ratio, move the cursor to the desired magnification ratio using the cursor movement key 617, then press the enter key 601.
It is confirmed by pressing .

The image processing setting key 615 is a key for setting an image processing mode when a read image is processed and printed.

When this image processing setting key 615 is pressed, a preset image processing mode is displayed on the liquid crystal display panel 630.

Here, the image processing mode is determined by moving the cursor to the desired image processing mode using the cursor movement key 617 and then pressing the enter key 601.

The mode setting selection key 616 is a key for setting the operation mode of the MFDS.

When this mote setting selection key 616 is pressed, the preset MFDS operation mode is displayed on the liquid crystal display panel 630.

Here, to set the operation mode of the MFDS, move the cursor to the desired MFDS operation mode, then press the enter key 6.
It is confirmed by pressing 1.

The cursor movement key 617 is a key for moving the cursor to each selection area displayed on the liquid crystal display panel 630.

The reading skip page setting key 618 is a key for setting a page to be skipped without performing reading scanning in the book document reading mode.

That is, if there is a page among the pages of the book manuscript 92 that you want to skip without performing manuscript reading scanning, first press this reading skip page setting key 61.
Press 8 and enter the number of the page you want to skip (skip page) in the book manuscript 92 from the reading start page using the numeric keypad 602, then press the enter key 601 to select this skip page. Confirm the page.

The skip page input in this manner is displayed on the liquid crystal display panel 630.

The regular size selection key 619 is a key for selecting the book size of the book manuscript 92.

As mentioned above, the booksize key human power mote has ``
There are ``Standard'' and ``Irregular (lWl input)'', and only when the hook size is A5, B5, A4, by selecting ``Standard'', this standard book size selection key 6
19 allows the book size to be input.

Every time this standard book size selection key 619 is pressed up by one, the standard book size display LED 633 changes to “A”.
5", "B5", and "A4", and the selected book size is displayed and recognized.

At the time of initial setting of this standard book size selection key 619,
Standard book size display LED633 display is rA4J
It becomes.

However, the book size here refers to the size of the cover of the book manuscript 92.

The oven key 620 is pressed when opening the transport section 19 of the MFDS.

In the sheet original reading mode, the sheet original set selection key 625 is used to set the original side of the sheet original 200 set on the original placing surface 116 to face up when in the [single-sided original reading mode] of the [sheet original through mode].
This key is used to select either "downward".

Each time this sheet 1-JM manuscript set selection key 625 is pressed once, the display on the sheet manuscript set display LED 635 changes to
The sheets are switched in the order of ``upward'' and ``downward'', and the selected sheet document set side is displayed and recognized.

At the time of initial setting of this sheet original set selection key 625,
The display on the sheet original set display LED 635 is 5 "face up".

Next, the printer 300 shown in FIGS. 9 and 10 will be described.

A schematic sectional view of this printer 300 is shown in FIG.

The image information after the image processing is written on the photosensitive drum 170 in the form of a set of light points by raster scanning of laser light in the writing section of the printer 300.

FIG. 18 shows a plan view of the writing section of the printer 300 in which a semiconductor laser is used as a laser light source.

In FIG. 18, a laser beam emitted by a semiconductor laser 171 is converted into a parallel light beam by a collimating lens 172, and shaped into a uniform light beam by an aperture 173.

This shaped beam is transmitted through the first cylinder lens 174.
As a result, the light enters the polygon mirror 175 in a compressed form in the sub-scanning direction.

This polygon mirror 175 has a precise polygonal shape, and is rotated in a constant direction at a constant speed by polygon motors 1 and 76.

The rotational speed of this polygon mirror 175 is determined by the speed of the photosensitive drum 170, the writing density, and the number of surfaces.

The reflected light of the laser light incident on the polygon mirror 175 is deflected by the rotation of the mirror.

This deflected laser beam is transmitted to each fθ lens 177a, 1
77b and L77e.

These fθ lenses 177a, 177b.

177c transmits scanning light with a constant angular velocity to the photoreceptor drum 17.
Function to convert to uniform speed scanning on 0.

It has a function of forming an image of this scanning light so that it becomes the minimum light spot on the photoreceptor drum 170, and a function of correcting the tilt of the surface of the drum.

The light that has passed through each of the fθ lenses 177a, 177b, and 177e is guided outside the image area by a synchronization detection mirror 178 to a synchronization detection sensor 179, and after a synchronization signal that generates a cue signal in the main scanning direction is output, After a certain period of time, image data for one line is output, and this process is repeated thereafter.

Form one image.

On the other hand, a photosensitive layer is coated on the surface of the photosensitive drum 170.

Here, as a photoreceptor sensitive to the wavelength of 780 nm of the semiconductor laser 171, an organic photoreceptor (○PC) is used.
, a-S i , S e -T e, etc. are known, but in this embodiment, an organic photoreceptor is used.

Additionally, in the case of laser writing, there is generally an N/P process in which light is applied to the image area, and a P/P process in which light is applied to the background area. The N/P process is adopted.

In FIG. 17, the surface of the photoreceptor drum 170 is charged by a scorotron type charger 180 having a grid on the photoreceptor drum 170.

Uniformly negatively charged.

Next, when the image area of this negatively charged photoreceptor drum 170 is irradiated with a laser beam and the image area potential is lowered, the background area potential of the surface of this photoreceptor drum 170 becomes -.
750 to -800V - An electrostatic latent image with an image portion potential of about 150V is formed.

This electrostatic latent image is applied to the developing roller of the developing device 181 by -50
A bias voltage of 0 to -600 V is applied to visualize the image using negatively charged toner.

The image developed by the developing device 181 is transferred to a transfer charger 182 which charges the transfer paper with a positive potential from the back side of the transfer paper, which is fed in synchronization with the rotation of the photoreceptor drum 170. It is transcribed by the transcriptional action of .

The transfer paper on which this image has been transferred is transferred to the transfer charger 182.
The photoreceptor drum 170 is separated from the surface of the photoreceptor drum 170 by being subjected to alternating current neutralization by a separation charger 183 held integrally with the photoreceptor drum 170 .

At this time, the photosensitive drum 170 is not transferred to the transfer paper.
The toner remaining on the cleaning blade 184
The cleaning blade 184 is scraped off from the surface of the photoreceptor drum 170 and collected in a tank 185 disposed around the cleaning blade 184.

Further, the potential pattern remaining on the surface of the photoreceptor drum 170 is erased by being irradiated with light from the static elimination lamp 1-86.

A photosensor 187 is provided immediately downstream of the developing device 181.

The photosensor 187 is composed of a light-receiving element and a light-emitting element, and measures the reflection density on the surface of the photoreceptor drum 170, and measures the reflection density (toner density after development) to a preset reference value or less. When this occurs, a toner replenishment signal for replenishing new toner into the developing device 181 is output.

That is, this photosensor 187 writes a certain pattern (pure black or halftone dot pattern) with its optical writing section at a position corresponding to the reading position of this photosensor 187, and develops this pattern. The density of the developed image is determined based on the ratio of the light reflectance of the area and the light reflectance of the photoreceptor drum 170 outside of this pattern area, and when the density of this image is lower than the reference value, a toner replenishment signal is issued. is configured to output.

Here, if there is a shortage of new replenishment toner, the photo sensor 187 is used to detect the lack of toner remaining by utilizing the fact that the developing density does not increase even if a toner replenishment signal is output. It may be configured so that it also serves as a sensor.

On the other hand, the printer 300 of this embodiment has a plurality of cassettes 1.
88a and 188b, and is configured so that the transfer paper on which the image has been transferred can be fed on both sides through the paper refeed loop 189.

That is, in FIG. 17, when the start button of the printer 300 is pressed after a predetermined cassette is selected, each paper feed roller 190a of each cassette 188a, 188b is pressed.
, 190b is rotated, and the transfer paper in the cassette is transferred to the registration roller 191.
The material is fed until it hits the nip.

The registration roller 191 starts rotating at the timing when the position of the image formed on the photosensitive drum 170 and the position of the transfer paper are synchronized, and
Feed the transfer paper toward the surface of the paper.

As a result, as described above, after the image has been transferred to the transfer paper, the transfer paper is further separated from the surface of the photoreceptor drum 170 and then transported to the heat roller 193. The toner transferred onto the paper surface is fixed by a fixing roller consisting of a pressure roller 194.

During normal printing, the transfer paper on which the toner has been fixed is placed in the position shown in FIG.
1 and is discharged onto the paper discharge tray 169 through the paper slot.

Here, when the print mode of the printer 300 is "duplex mode", the switching claw 195 is switched to the position shown in FIG. Transfer paper is conveyed.

This transfer paper passes through 5 reversal guide claws 196.

- after being guided onto the reversal guide tray 197.

By switching the reversing guide claw 196 and reversely rotating (reversing) the reversing guide roller 198, the registration roller 19 is again passed through the paper refeed loop 189.
It is fed until it comes into contact with nip No. 1.

After the toner image formed on the photoreceptor drum 170 is transferred and fixed on the re-fed transfer paper in the same way as in the above-mentioned normal printing, the transfer paper is transferred and fixed as shown in FIG. 19(a).
) is switched to the initial state shown. The paper is discharged onto the paper discharge tray 169 via the switching claw 195.

If the "back side ejection mode" is set, in which the transfer paper is ejected with the image fixing side of the transfer paper facing the stacking surface of the paper ejection tray 169 when ejecting in the 5 single-sided print mode, , the switching claw 195 is switched to the position shown in FIG.
The transfer paper is not directly ejected, but is then transported toward the double-sided transport path.

Immediately after the rear end of the transfer paper passes the switching claw 195, the switching claw 195 is switched to the position shown in FIG. 19(C), and the rotation direction of the switchback roller 199 is reversed. The transfer paper guided to this double-sided conveyance path is conveyed in a switchback manner, and then transferred to the printer 30.
The paper is discharged onto the origami tray 169 through the paper discharge port 0.

In this "reverse paper ejection mode", the transfer paper printed on one side is ejected onto the paper ejection tray 169 with the image fixing side facing the stacking surface of the paper ejection tray 169, so that the original is read in the order of the pages. Then, the transfer paper is discharged with the print pages in the same order.

By the way, as described with reference to FIG. 4, the page turning reading unit 1 has a turning roller 2 between the first turning unit side plate 40 and the second turning unit side plate 41.
, 10th-La 4, 20th-La 5. presser roller 6, and
The first bias rollers 3 are arranged rotatably.

These turning rollers 2, 10th and 4th. 20th-
La5. As shown in FIG. 20, a turning conveyor belt 8 is passed around the presser roller 6 and the first bias roller 3. As shown in FIG.

A first high-voltage power supply 320 is connected to the first bias roller 3, and is configured to receive AC voltages of different frequencies for attraction and static elimination from two ports, respectively.

Further, inside the page turning reading unit 1, between the turning roller 2 and the first reading sensor unit 9, a turning guide 10 is further provided.

Above this turning guide 10, a turning conveyor belt 8 is provided.
Page storage sections 7 are arranged along the inner circumferential surface of each page.

A page turning resensor 29 made of a photo sensor or the like is disposed in the page storage section 7 to detect errors during page turning.

This page turning resensor 29 may be arranged on the turning guide 10.

Also, between the turning roller 2 and the presser roller 6, a first
As described with reference to FIG. 1, the first reading sensor unit 9 is arranged.

This first reading sensor unit 9 is attached to the page turning reading unit 1 so that it can move up and down approximately 3 + 41 degrees, and when reading a document, it is pushed downward by a reading sensor spring 147 to read the book document 92 or It is configured to be brought into close contact with the document surface of the sheet document 200.

Further, as shown in FIG. 21, this first reading sensor unit 9 includes an LED 316. It is equipped with an RMLA 81 (roof mirror lens array) as an imaging system for an original image, and an 85-1 magnification sensor 315 as a photoelectric conversion system that converts the formed optical image of the original into an electrical signal.

The document reading by the first reading sensor unit 9 is performed as follows.

In FIG. 21, first, the light emitted from the LED 316 is focused onto the document surface by the bar lens 83.
The original is illuminated.

Next, the reflected light from the document surface is transmitted to an optical path separation mirror 84.
reflected by LA85 (lens array) and RM
The light passes through A86 (roof mirror array) and is reflected again by the optical path separation mirror 84.

The image light of the original reflected by the optical path separation mirror 84 is imaged on the light receiving surface of the Si equal-magnification sensor 315, and the image information formed on this is converted into an electrical signal by the Si equal-magnification sensor 315. converted and read.

Next, a basic page turning operation in the embodiment of the present application configured as described above will be explained.

First, reading of a document in this embodiment is performed in the following procedure.

If the manuscript is a book manuscript 92, the operation display board 31
3, press the oven key 620 to open the transport section 19 upward as shown in FIG. With the reading start page 92 opened upward, the conveying section 19 is closed as shown in FIG.

In this state, the user operates each key on the operation display board 313 to set reading conditions for the book document 92, and then presses the start key 600 to start the MFDS.

As a result, as shown in FIG. 1, the turning unit movement belt 52 is driven by the turning unit drive motor 60, and the page turning reading unit 1 moves rightward from the leftmost home position 1ffil-A. , and by moving the page turning reading unit 1,
The first reading sensor unit 9 reads the document information of the book document 92.

At this time, the rotation of the turning conveyor belt 8 is stopped, and the document surface of the book document 92, which is spread open, is pressed down from above.

Further, as described above, the page turning reading unit 1 is rotated about its rotation support rod 42 as a fulcrum, and the sliding pipe 43 integrated therewith is moved up and down along the sliding support rod 46. Book manuscript 9 by being
The first reading sensor unit 9 is moved along the M-area surface of No. 2 while keeping the first reading sensor unit 9 in close contact with the document surface.

Further, this page turning reading unit 1 is located at a position 1-B in the middle of reading the book JM manuscript approximately in the center of the book manuscript 92.
When the first bias roller 3 reaches the first high voltage electric current 1320 shown in FIG. .

In this way, the page turning reading unit 1.

While forming a striped charge pattern on the turning conveyor belt 8, the first reading sensor unit 9 moves to the right end position i-c in FIG.
The document information of the book document 92 is read.

When the reading of the document information of the book document 92 is completed as described above, the page turning reading unit 1
As shown in FIG. 2, the end position 1i-c is returned toward the home position 1-A.

At this time, as shown in FIG.
Above, an unequal electric field is generated due to the charge pattern formed during the reading operation, and this electrostatic field causes the right page of the book document 92 to be electrostatically attracted to the turning conveyor belt 8. It's like nine.

Therefore, in this state, the page turning reading unit 1
When the page turning reading unit 1 moves toward the end position 1-C and reaches the turning start position 1t-D shown in FIG. 22, the turning conveyor belt 8 moves as shown in FIG. Along with Book Manuscript 92
The edge of the JM document corresponding to one right page gets caught in the page turning reading unit 1.

As described above, as the page-turning reading unit 1 moves, the document that has been rolled up and spread out inside the page-turning reading unit 1 is bent due to the curvature separation caused by the curvature of the turning roller 2 and the strength of the document. , and is gradually separated from the turning conveyor belt 8.

In this way, the originals separated from the turning conveyor belt 8 are moved along the turning guide 10 shown in FIG. 7.

This page storage section 7 is as shown in FIG.

It is formed in a cylindrical shape, and by winding up the document rolled up inside the page turning reading unit 1-1 along its inner circumferential surface, a single page that has been read can be stored in an extremely small space. It can store many original documents.

Therefore, according to this page turning reading unit 1, as shown in FIG.
is moved back from the turning start position 111-D to the winding completion position 1-H, so that one page of the original that has been read is read by the primary reading operation. The next page of the document can be separated extremely smoothly.

The document stored in the page storage section 7 in this way is placed in the page turning reading unit 1 at the position 1l when the page turning reading unit 1 has completed winding the document.
The page turning reading unit 1 and this page are further moved back from l-E, beyond the center of the book original 92, toward the page ejection position 1ll-F where the left page of the book original 92 is. Due to the movement relative to the original stored in the original, this original begins to be ejected from the page storage section 7 of the page turning reading unit 1.

Then, this page turning reading unit 1 is moved back to its home position 11-A, and when the movement is completed, this page turning reading unit 1
The ejection of the document stored in the page storage section 7 is completed, and the turning operation for one page of the M document that has been read is completed.

On the other hand, during this document turning operation, the first bias roller 3 The program is such that the electric charge pattern formed on the turning conveyor belt 8 is neutralized by applying an AC voltage for static elimination from the first high-voltage power supply 320 shown in FIG.

Therefore, during the return movement of the page turning reading unit 1, no electrostatic adhesion force is generated between the document that has been read and the document turning conveyor belt 8, so that the document is not wound. The picking and discharging operations can be performed extremely smoothly.

Incidentally, conventionally known devices for holding and conveying sheet members and the like include devices using an air suction method, an electrostatic adsorption method using comb-teeth electrodes and an electric double layer method, and the like.

Further, as a page turning device for book manuscripts, a device using an air suction method or the like has been proposed.

However, each of these methods has drawbacks as will be described later, so it is almost impossible to put into practical use a page turning device for book manuscripts based on these methods.

That is, the air suction method requires an air pump that suctions air to generate negative pressure and an air suction path, which has the drawback of increasing the size of the device.

In addition, in the comb-shaped electrode embedding method, two comb-shaped electrodes are embedded in a dielectric material so that their teeth mesh with each other, and positive and negative voltages are applied to each electrode. This not only increases costs, but also makes it difficult to form the document turning conveyance belt into an endless belt.

Furthermore, in the electric double layer method, the belt and sheet are charged with charges of opposite polarity through corona discharge, etc., so when turning the pages of a book manuscript, etc., it is necessary to separate the pages to be turned in advance, otherwise the charges will be charged. I can't do it.

Furthermore, with other page-turning methods that use frictional force, such as those using rubber rollers, the page-turning accuracy is severely restricted depending on the paper quality and size of the book manuscript, making it difficult to improve its reliability. becomes.

On the other hand, in one embodiment of the present invention, as shown in FIGS. 20, 23, and 24, an alternating current voltage is applied from a high-voltage power source 320 to the flip-up conveyor belt 8, which is an endless belt. By forming an alternating stripe-shaped charge pattern on the surface of the turning conveyor belt 8, an unequal electric field is generated on the conveyor belt 8, thereby holding and conveying the pages. I'm flipping through the pages.

Therefore, this page-turning method allows the document to be held and conveyed and the page-turning operation to be performed extremely smoothly.

The basic configuration and electrostatic adsorption principle of this page turning method will be explained below.

Turning conveyor belt 8 used in this page turning method
On the back side of the dielectric material formed in the shape of an endless belt,
A two-layer belt with conductive treatment was used.

Further, as a means for applying an alternating voltage to the turning conveyor belt 8, a first bias roller 3, which is rotatably supported with its peripheral surface in contact with the surface of the turning conveyor belt 8, is used. A high-voltage power supply 320 applied an AC voltage for adsorption.

As shown in FIGS. 20 and 23, while applying an alternating electric field to the first bias roller 3 using the 1ff1 layer 8b of the flip conveyor belt 8 as a ground plane, the flip conveyor heald 8 and the first bias roller 3 relative to each other for 81h, a stripe-shaped charge pattern is formed on the surface of the dielectric material 8a of the turning conveyor belt 8.

Due to this, an unequal electric field is generated near the surface of the dielectric 8a of the turning conveyor belt 8.

When a dielectric material such as a sheet of paper that is to be read as a JfA manuscript is brought close to this unequal electric field, polarization occurs inside it, and because this electric field is unequal, the paper is turned over and conveyed by the conveyor belt 8.
There is a gravitational pull towards the gawa.

This becomes clear by conducting an interview with a stress of m a x w e l l spread over the surface of this paper.

Here, the stress of the maxwell is f ==EdivD-Hgrad(E-D) + (D
・grad)E・"(a) Formula %Formula % Also, if the normal direction of the surface of the flipping conveyance bell 1-8 is the X-axis, the stress of the maxwell in this X-axis direction is.

The equation (b) is expressed as J.

Next, by measuring the stress fx of maxwe 11 in the X-axis direction expressed by equation (b) along the outer surface (upper and lower surfaces) of the paper, )
N is required.

That is, the object force (adsorption force) N of this paper is.

N=fsfxds becomes.

As a result, when the coefficient of friction of this paper is μ, the conveyance force F of this paper is expressed by the following formula: F=μN.

The specific configuration of this embodiment is as follows:
As, 75 μm thick PET film (dielectric material 8a)
An endless belt on which a 10 μm thick aluminum evaporated layer (electrocardiographic layer 8b) was formed was used, and the pitch of the charge pattern formed on the belt was set to 2.4 mm.

That is, the reading speed of the book manuscript 92 is 120 m.
/s, AC frequency 50 Hz, applied voltage ±2
kVP, , P.

In addition, Fig. 25 shows the experimental values of the pitch characteristics of the conveying force when the applied voltage is constant at ±2 kVp-P, and Fig. 26 shows the pitch of the adsorption force when the applied voltage is constant at ±2 kVp-p. The experimental values of the characteristics are shown in Fig. 27, and the experimental values of the applied voltage characteristics of the conveying force when the charge pattern pinch is constant at 2.4 mm, and Fig. 28 shows the experimental values of the applied voltage characteristics when the charge pattern pitch is fixed at 2.4 mm.
Actual T of the applied voltage characteristics of the adsorption force when it is constant at m! *
Show value.

As is clear from these experimental values, the pitch of the charge pattern and the applied voltage used in this example are not limited to the values described above.

For example, the pitch of the charge pattern is 0.5- to l
The voltage should be within the range of 0m, and the applied voltage should be within ±
It is sufficient if it is equal to or greater than lk'vp-e.

In addition, in this embodiment, as a high frequency AC voltage for static elimination,
Although a frequency of 2 kHz and an applied voltage of ±2 kV P-P are used, any value may be used for each of these as long as the static elimination effect can be obtained. .

As mentioned above, depending on the page turning method in this embodiment, the paper (book y
Since there is no need to make any modifications to the X draft (92), the sheets will not attract each other due to static electricity.
Book manuscript 9 due to disturbance (irregularity) of paper edges
It is possible to eliminate the occurrence of the page turning mistake described in 2.

Further, according to this page turning method, since the place where the adsorption force is generated is near the surface of the turning conveyor belt 8, the paper that is in contact with the surface of the turning conveyor belt 8, that is, the book Sufficiently large conveying force and adsorption force act on the topmost document of the document 92 where page turning is performed, but the second and subsequent documents located below this document are These conveying forces and adsorption forces rarely act on the material.

Therefore, according to this page turning method, it is possible to reliably turn only one page, so this method is the most suitable method for turning the pages of the book manuscript 92.

The operation of the MFDS configured as described above will now be described.

FIG. 29 is a block diagram of the electrical equipment of the MFDS, FIG. 30 is a diagram of operation mode transitions when reading a book original; FIG. 31 is a transition diagram when reading a sheet original.

FIG. 32 is a flowchart showing the operation mode of MFDS.

First, the MFDS control means will be explained based on FIG. 29.

In the 29th episode, the main control board 310 controls commands and data between each board.

It controls the 0N10FF timing of each load, abnormality processing based on each sensor input, mode switching, etc., and the entire MFDS.

Further, the main control board 310 is configured to set one communication protocol by communicating with connected devices and to be able to handle each connected device individually.

For example, if the printer 300 is connected as an output device, its pixel density, processing speed, whether double-sided printing is possible, whether or not back-side paper ejection is possible, etc. are checked, and the corresponding mode selection area can be determined. It is composed of

Furthermore, this main control board 310 is provided with two systems of interfaces to external devices, corresponding to each mode.

In the main control board 310 of this embodiment, commands between each board are carried out by serial communication, separated from the data and control lines, and commands can be sent and received even while the data is being output.

Here, if you want to increase its versatility, you can set one or both of GPIB, Centronics, 5C8I, etc. as the interface, so that the display can be used via a general-purpose printer N- or a personal computer. Display, optical disk device, HD
Data can be stored in storage devices such as D and FDD without using a special interface.

On the other hand, in FIG. 29, a flip conveyor belt cantering control boat 311 controls a flip conveyor belt quick-acting motor 61.

Further, the turning unit drive control board 312 controls the turning unit sliding motor 60.

Here, the flip-over conveyor belt instant-acting motor 6 detects the speed of the flip-over conveyor belt 8 by feedback of encoder pulses generated by an encoder integrally attached to the flip-over conveyor belt recording motor 61, and detects the speed of the flip-over conveyor belt 8. Performs position control and forward/reverse movement.

On the other hand, the turning unit drive motor 60 detects the position of the turning roller 2 by feedback of encoder pulses generated by the encoder 152 attached to the turning roller 2, and controls its speed position and forward/reverse operation. Is going.

In addition, these turning conveyor belt drive control boards 311
, and the turning unit drive control board 312 are each connected to the main control board 310, and send and receive commands to and from the main control board 310 by serial communication.

The operation display board 313 displays the manual power of each key for setting the number of print positions, variable magnification, number of pages to be turned, and each mode, as well as the manual power of keys such as ``fright'', ``error'', etc.
Displays the turning status and the document setting method for each mode.

Here, in the mode display, the connected device N (printer 3
00), or if an impossible mode is selected, an error message is displayed.

For example, even though a printer that cannot print on both sides is connected, if the duplex mode selection key 612 is pressed manually, the message "Connection print cannot be used on both sides" appears.
An error message such as this will be displayed.

Further, the reading of the original is started by pressing the start key 600 on the operation display board 313.

Furthermore, this operation display board 313 and main control board 310 are connected to the serial i&i! Commands or data are sent and received via communication.

The first image processing board 314 has the function of generating a drive clock for the Si equal-size sensor 315 (hereinafter referred to as the first COD 315) built in the first reading sensor unit 9, and The function to take the 0N10FF timing of the first LED 316 built in and the output of the first CCD 315 is amplified.
It has a function of A/D converting this output and performing image processing.

The first image processing board 314 also performs image processing such as shading correction, MTF correction, main scanning magnification, character processing, photographic processing, and negative/positive inversion.

This first image processing board 314 is the main control board 3
10, and sends and receives data and commands to and from this main control board 310.

The second image processing board 317 is similar to the first image processing board 314 described above, and the second image processing board 317 includes the second reading sensor unit 14 (
The function of generating a drive clock for the second CCD 318 built in the first reading sensor unit 9) and the 0N10F of the second LED 319 built in the second reading sensor unit 14 as well.
It has a function of taking F timing, and a function of amplifying the output of the second CCD 318 and performing image processing by A/D converting this output.

In addition, in this second image processing board 317, similarly to the first image processing board 314, shading correction, MTF
Correction, main scanning magnification, text processing, photo processing, and negative/
Image processing such as positive inversion is performed.

Furthermore, this second image processing board 317 is connected to the 5 main control board 310, and sends and receives data and commands to and from this main control board 310.

As described above, the first high-voltage power supply 320 is a power supply that applies a high-voltage AC voltage to the first bias roller 3.
It is configured to be able to generate two frequencies, one for document suction and one for belt neutralization, and each frequency is switched by a switching signal from two output ports of the main control boat 310.

Further, the second high-voltage power source 321 applies a high-voltage AC voltage to the second bias roller 11, similar to the first high-voltage power source 320! It is configured to be able to generate two frequencies, one for document suction and one for belt neutralization, and each frequency can be switched by switching from the two output ports (No. 2) on the main control board 310. This is done by

Paper feed clutch 128 controls the timing to start feeding sheet original 200 based on a control signal from main control board 310 .

Also, various sensors 25, 26, 27° 2B, 29. connected to each input port of the main control board 310.
30, 31, 32, 33, and 34 perform mode switching, timing detection, abnormality detection, etc., as described in the mechanism description above, and provide the respective detection signals to the main control board 310. .

Next, the operation mode of the MFDS will be explained.

The operation mode of MFDS is broadly divided into two modes.

The first operation mode of this MFDS is a book HVh reading mode, as shown in FIG. 30, which performs an automatic page-turning reading operation of a book original, and the second operation mode is as shown in FIG. 31.

This is a sheet original reading mode in which sheet originals are automatically fed and read.

These book document reading mode and sheet document reading mode each have further subdivided modes.

That is, as shown in FIG. 30, the book manuscript reading mode includes an automatic book size recognition mode in which the book size of the book M manuscript 92 is automatically recognized, and a book size in which the book size is specified manually using keys on the operation display board 313. There is a book size key and manual mode.

Stiff, automatic booksize recognition mode, and.

In the book size key manual mode, an automatic page turning reading operation is performed to read the book document 92 in a two-page spread reading mode in which the book JJA document 92 is set with the document side facing upward.

Furthermore, in this book manuscript reading mode, in conjunction with the output device I (particularly a printer), the original ay of two pages on the left and right of the spread book manuscript 92 is used as a reading method.
The above-mentioned two-page spread can be created by using a two-page spread continuous reading mode that reads the s image continuously and prints the two-page image on one sheet of transfer paper, and a printer that has a double-sided image forming function. Mf for 2 pages on the left and right with continuous reading mode! On the back side of a sheet of transfer paper with an image printed on it, there are
Continuously forms read images for pages.

This two-page spread continuous reading mode is a double-sided mode, the one-page spread reading mode is one in which the document images of both the left and right pages of the spread book document 92 are read by dividing them into one-page sections, and this two-page spread 1 On the back side of the transfer paper printed in the page reading mode, the printer with the double-sided image forming function forms the manuscript images of the next left and right pages of the spread book manuscript 92, one page at a time. It has a double-sided mode, which is a reading mode for just one page of this two-page spread.

On the other hand, in the sheet document reading mode, as shown in FIG. There is a sheet document through mode in which the document image is read in one sheet through mode while moving the document, and a sheet document through mode in which the sheet document image is read using the sheet through method while the document image is being moved. Sensor unit 9
is repeatedly moved back and forth (scanned) to scan the sheet document 20.
0 reading operation, sheet document scanning mode,
The original cannot be set using the automatic document feeder (ADF) (
There is also a sheet original manual opening/closing mode in which the original is manually set.

In addition, in the sheet original through mode, the sheet original M2O0
There is a single-sided reading mode in which images on only one side of the sheet document 200 are read, and a double-sided reading mode in which images on both sides of the sheet original 200 are read simultaneously by the first reading sensor unit 9 and the second reading sensor unit 14.

Furthermore, in this double-sided reading mode, the first reading sensor unit 9 and the second reading sensor unit 14 are
There is a same-position reading mode in which the original image is read by placing them at the same position facing each other, and a same-position reading mode in which the first reading sensor unit 9 and the second reading sensor unit 14 are placed in different positions shifted from each other to read the original image. It also has a separate position reading mode for reading.

Above, we have explained the operation modes of MFDS, but
Next, switching between the individual modes described above will be explained with reference to FIG. 32.

In FIG. 32, when the main power of the MFDS is turned on, the main control board 310, the turning conveyor belt drive control board 311, the turning unit movement control board 312, etc. shown in FIG. i-production display board 313, first image processing board 314. The second image processing boards 317 are each reset and initialized.

After that, the connection of the connected device such as the printer 300 is checked, and the mode compatible with this connected device is displayed.
It accepts the input of each key to set the number of prints, variable magnification, number of pages to be turned, and each mode.

Also, during this time, the book manuscript 92 or the sheet manuscript 20
A set of 0 is performed.

Here, when the sheet original 200 is set on the sheet original tray 94, the sheet Ji! l1il sensor 2
5 is turned ON.

Also, here, the oven key 6 on the operation display board 313
20 opens the transport section 19 of the MFDS, and when the book document 92 is set in the center reference positioning section 24 of the document placement surface 116 in a spread-open state, the book document sensor 27 is turned on. .

These sheet document sensor 25 and book document sensor 27
The document image reading mode is switched as shown in FIG. 32 in accordance with the 0N10FF state and the print position number indicating the number of prints of the sheet document 200 inputted using the numeric keypad 602 of the operation display board 313.

That is, here, if the book document sensor 27 is OFF, the sheet JJKH sensor 25 is ON, and the print positive number is "1", the mode shifts to the sheet document through mode.

Also, here, the book document sensor 27 is OFF, the sheet document sensor 25 is ON, and the print position is f2.
In the above case, a transition is made to the sheet M document scan mode.

Furthermore, the book Drc manuscript sensor 27. If both sheet document sensors 25 are OFF, a transition is made to the sheet document manual opening/closing mode.

Further, when the book document sensor 27 is ON and the sheet document sensor 25 is OFF, the mode changes to the book g document reading mode.

Furthermore, here, if both the book document sensor 27 and the sheet document sensor 25 are ON, the abnormality processing 1
(Turning on the warning buzzer and displaying an error) to alert the user, and then transitions to the book document reading mode.

After entering each selected mode subroutine in this way, the start key 6 on the operation display board 313 is pressed.
If 00 is not pressed, the process returns to the step of applying key manual input without executing the double image reading operation.

Next, the operation of each mode mentioned above will be explained.

First, the book document reading mode will be described with reference to FIG. 33.

When the MFDS mode enters the book ivI & reading mode, the scan cutoff sensor 34 turns ON10F.
A check of F is performed.

This scan cutoff sensor 34 is used by the page turn reading unit 1 as shown in FIG.

When the upper limit detection unit 76 rises to the upper inflated position,
is detected and turned on.

As described above, the page turning reading unit 1 is moved up and down according to the thickness of the book document 92 placed on the document placement surface 116.

As the page turning reading unit 1 rises, that is, the thickness of the book document 92 increases.

The tension of the turning conveyor belt 8 that drives this increases.

Therefore, if the tension of this turning conveyor belt 8 becomes too high, that is, if the book original 92 is too thick and the page turning reading unit 1 rises too much, this tension acts as a brake and the page turning reading unit 1 cannot be scanned.

The scan cutoff sensor 34 is like this.

It has been detected that the book original 92 is so thick that the page turning reading unit 1 cannot scan it.

When this scan cutoff sensor 34 is ON,
Perform error processing 2 (turn on the warning buzzer and display the error message "Book MW& is too thick").

When the user forcibly closes the transport section 19, the transport section 19
to prevent it from being damaged.

Here, if the thickness of the book document 92 is less than the adaptation level, the user closes the transport section 19, thereby turning on the transport section lock sensor 31.

At this time, the transport section 19 remains open, that is, the transport section lock sensor 31 remains OFF.

Abnormality processing 3 (turning on the warning buzzer and displaying "Please close the transport section") is performed.

When the conveying section 19 is closed, the ON/OF''F of the book size upper limit sensor 33 is checked.

Here, the book size upper limit sensor 33 detects the hook original 9
If the book size of 2 is detected and turned on, that is, the book size of the book original 92 set on the original placing surface 116 exceeds the reading area of the page turning reading unit 1 and is an unreadable book. In the case of the size, abnormality processing 4 (turning on a warning buzzer and displaying the message "The size of the book document is too large") is performed.

After that, after checking the number of print positions, variable magnification, and number of pages to be turned, the prescan flag is set if the automatic book size recognition mode is selected.
If the mode is not the automatic book size recognition mode, the mode is set to the book size input mode, and the reading area of the book document 92 is determined by manually pressing a predetermined key on the operation display board 14' 313 to set the book size.

When the start key 600 is pressed, the transport unit locking device 140 is activated, and the transport unit 19 is locked to the document table 18.

This prevents the user from accidentally opening the conveying section 19 and damaging the book original 92 during the page turning operation by the page turning reading unit 1.

Next, after the transport unit locking device 140 is activated.

When the aforementioned prescan flag is set, the prescan operation of the page turning reading unit 1 is executed.

Here, if the prescan flag is not set, this prescan operation is skipped.

After this prescan operation, the connected device (printer 300
) until it is ready.

Then, when this connected device (printer 300) is fully prepared, when it receives a reading start signal output from the connected device (printer 300), the page turning reading unit 1 is driven, and as described above, The operation of reading the original image of the book original 92 is started.

The reading operation by the page turning reading unit 1 is performed the number of times according to the number of print positions set previously.
It is done repeatedly.

When the predetermined number of reading operations are completed, the page turning operation is executed by the page turning reading unit 1, as described above, in order to read the next page's original image.

In this way, the operation of reading the document image of the book document 92 and the operation of turning the pages are repeatedly executed according to the preset number of pages until the last page is turned over.

Then, when the page turning operation of the preset last page to be turned is completed and the reading operation for the last read page is completed a predetermined number of times, the page turning reading unit 1 does not perform the page turning operation for the last page to be read. is returned to its home position 1-A, and this book document reading mote routine is returned.

The basic operation of the book document reading mode is as described in the 33rd section above.
As shown in the flowchart shown in the figure, the above-mentioned 2-page spread continuous reading mode, its duplex mode, the 1-page spread separated reading mode, and its duplex mode are as follows.

When the key is manually set as shown in FIG. 32, the receiver becomes an attached input mote.

For each input mode, start key 600
This will be explained with reference to a timing chart showing the progress after is pressed.

First, using the timing chart shown in Figure 34,
The two-page spread continuous reading mode will be explained.

In FIG. 34, when the start key 600 of the operation display board 313 is pressed and the reading start switch SW is turned on, a shutter (not shown) in the first VT removal sensor unit 9 is closed.

The inner surface of this shutter is a white reference plate, which allows shading correction of the first reading sensor unit 9 to be performed.

This shading correction is performed every time the page turning reading unit 1 starts up, and is completed before the moving speed of the page turning reading unit 1 reaches a constant speed (the timing chart for this part is not shown).

The page turning reading unit 1 is started by a normal rotation start signal sent from the main control board 310 to the turning unit drive control board 312.

In response to this normal rotation start signal, the page turning reading unit 1 starts pre-scanning.

Here, after the moving speed of the page turning reading unit 1 rises to the constant speed Vf, the aforementioned shutter has already been opened, and the first CCD 315 detects the book original 92.
Reading of the MtiI image has started.

By reading the pre-scan of this page turning reading unit 1, the edge of the opened book HiI 92 is detected by image processing, and by counting the output of the encoder 152 attached to the turning reroller 2 at this time, Manuscript, ai! The book size of the book original 92 set on the i-side 116 is recognized, and the reading area of the original image of the page turning reading unit 1 and the page turning area are determined.

In this way, this MFDS is configured such that the book original 92 is set with the center of the original placing surface 116 as a reference, so that the set book @ @ 92
By detecting only the left end of the page, it is possible to calculate the reading area of the document image of the page turning reading unit 1 and the page turning area.

Therefore, in this MFDS, when detecting the book size of the book original 92, there is no need to pre-scan the entire page with the page turning reading unit 1.

The book size of the book document 92 placed on the yK document placement surface 116 can be detected by simply performing a short pre-scan of the page turning reading unit 1.

As a result, during pre-scanning by the page-turning reading unit 1, the reading start page of the book document 92 will not be erroneously turned over.

The book size data of this book manuscript 92 is as follows.

The information is transmitted from the main control board 310 to the printer 300 as an externally connected device.

On the other hand, while this book size detection is completed and the book size data is being sent to the printer 300, the main control board 310 causes the turning unit drive motor 60 to be reversely reversed with respect to the turning unit drive control board 3]2. A reversal signal is given to cause the page turning reading unit l to move to its home position [1] at a speed Vr.
- It is moved back towards A.

Note that the document placement surface 116 of the document table 18 of this MFDS is colored in a chromatic color, for example, yellow.

By coloring with a chromatic color that is not often used for book manuscripts, this manuscript placement surface 116 and
Since it is possible to improve the accuracy of area identification with the reading area of the document image of the book document 92, the book size can be detected more accurately during the above-mentioned pre-scanning, and the reliability of the book size data is improved. Ru.

In addition, here, the document aX side 116, for example.

If it is colored with a neutral color such as gray, it becomes possible to identify the area during pre-scanning as the first CC0315 of the first reading sensor unit 9 without using a color sensor.

After the above-mentioned pre-scan is completed and the page turning reading unit l is retracted to the home position ], -A,
When the printer 300 is ready and a transfer request signal requesting data transfer is given from the printer 300 to the main control board 310, the main control board 310 sends the turning unit drive control board 31 to the main control board 310.
2, a normal rotation signal is applied to rotate the turning unit drive motor 60 in the normal direction, and the normal rotation operation of the page turning and reading unit 1 is started.

As mentioned above, this page turning reading unit 1 has the following features:
By feeding back the output of the encoder 152 of the turning roller 2, the document surface of the book document 92 is controlled at a constant speed of Vf and moved toward its end position l1l-C. Ru.

At this time, the LED 31 of the first reading sensor unit 9
6 has already been lit, and the first CCD 315 of the first reading sensor unit 9 has started reading the document information of the book document 92.

Here, as shown in FIG. 1, the book manuscript 92 set spread-open on the manuscript placement surface 116 has a severe warpage near the binding part (part of the center). It becomes difficult to read the manuscript information accurately.

Also, near the binding part of this book manuscript 92.

Normally, original information such as characters and images is not formed.

Therefore, in this MFDS, as shown in FIG. 34, the first CCD 3
The reading 5FGATE of No. 15 is turned off, and the reading of document information near this binding section is masked.

As described above, the mask area at the time of initial setting of this document information is +
This mask area is set to be 10w and -10■, but the setting value of this mask area can be changed manually using the book binding mask area setting key 608 on the operation display board 313. , it is now possible to handle book manuscripts with special bindings.

By the way, the first reading sensor unit 9 reads the document information of the book document 92 until the page turning reading unit 1 reaches its end position 111-C. When reaching near the center of , the first high voltage electric current 73 (320) is turned on at frequency f1.

As a result, the above-described charge pattern is formed on the portion of the turning conveyor belt 8 that comes into contact with the right page of the book original 92.

As described above, this turning conveyor belt 8 is not driven when the page turning reading unit 1 is being driven, and functions to press down the book document 92.

In this way, when the page turning reading unit 1 is driven to its end position gtl-C and the reading of the document information up to the right end reading area of the book document 92 is completed, the first high voltage ff1a 320 is output. is turned off, and a flip signal is given from the main control board 310 to the flip unit control board 312.

The page turning operation of the book manuscript 92 by the page turning reading unit 1 is started.

At this time, if the document surface read by the first reading sensor unit 9 corresponds to the last read page of the preset printed document 92, a turn signal is output from the main control board 310. First, this page turning reading unit 1.

After finishing reading the most read page of the book document 92, it is returned to its home position 1-A without performing the above-described page turning operation.

During the page turning operation of Book Original [92].

Until the page-turning resensor 29 is turned on, the reverse operation of the page-turning reading unit 1 is started slowly, and the read end page (the first The right page in the figure) is guided into the page storage section 7.

Then, the page turning reading unit 1 is further moved back toward its home position 11-A, and a part of the center of the page that has been read in this book manuscript 92 is turned into the 5-page storage section 7. Jr.

Further, during the page turning operation of the page turning reading unit 1, the first high voltage 1! source 32
0 is turned on at frequency f2.

In this way, the book manuscript 92 (71il) turned over in the page storage section 7 of the page turning reading unit 1
The end page is ejected from the page storage section 7 while the page turning reading unit 1 passes a part of the center of the book original [92] and reaches the end position 111-C. The page turning operation is completed.

Page turning reading unit 1 when this page is ejected
The return speed V r rn of
r m ) V f to speed up this page turning operation.

The state of this series of page turning operations is detected by a page turning resensor 29.

That is, this MFDS has 0N10 of the page turning resensor 29 at each position of the page turning reading unit 1.
The presence or absence of an abnormality is detected by checking the FF, and if there is an abnormality, an abnormality processing operation is executed.

This abnormal processing operation includes a warning buzzer being activated, and 1. For example, if the document page cannot be turned into the page storage section 7, ``page cannot be turned over'', the document page turned over into the page storage section 7 If the page cannot be ejected, a message such as ``page stacking not possible'' will be displayed on the operation display board
3, and furthermore, this page turning operation is stopped.

In addition, the user can check the page turning state where this error occurred.
- The location where the abnormality has occurred in the page turning state is displayed on the operation display board 313 so that the page turning state can be confirmed.

Hereinafter, reading of the second and subsequent pages of the book manuscript 92 and page turning operations are sequentially started in response to a transfer request signal from the printer 300, and the same reading operations and page turning operations as described above are performed. This process is repeated until a preset final read page is reached.

Here, in the timing chart of FIG. 34, when the number of print positions of the original is set to "1", that is, every time each read page of the book original 92 is read 51 times, the number of pages that have been read is We have shown the case where the page turning operation is executed, but if the print position of this document is "2",
'', when the first document reading operation by the first reading sensor unit 9 is completed, the main control board 310 sends a turning signal to the turning unit drive control board 312 instead of the turning signal. A reversal signal is sent to the page turning reading unit 1 at a speed Vr to its home position i! 1-A, and at the same time as this return operation is completed, the second original reading operation of the page turning reading unit 1 is started.

Then, the document reading operation of the page turning reading unit 1 is repeated twice as many times as the preset number of document prints.

When the number of times of this operation matches the number of prints, a turning signal is transmitted from the main control board 310 to the turning unit drive control board 312 for the first time, and the above-described page turning operation is executed.

Hereinafter, the reading of the second and subsequent pages of the book manuscript 92 and the page turning operation are sequentially started in response to a transfer request signal from the link 300, and the reading operation is performed a number of times according to the number of prints as described above. , and page turning operations are repeatedly performed until a preset last read page is reached.

Also, here, by the print magnification key 614.

When the scanned original image is set to be scaled, the scan speed Vf of the first reading sensor unit 9 is varied to a speed corresponding to the scale ratio, so that the sub-image of the original image is In addition to scaling in the scanning direction, the first image processing board 314 also scales the original image in the main scanning direction.

On the other hand, in the double-sided mode of the two-page spread continuous reading mode as described above, the printer 300 performs double-sided printing of the original image.

The difference is that the transmission timing of the transfer request signal from the printer 300 to the main control board 310 is slightly delayed, but other than that, the same operations as in the two-page spread continuous reading mode described above are performed.

Next, with reference to FIG. 35, the one-page spread reading mode will be described.

This two-page spread reading mode is a mode in which the left page and right page of the spread book document 92 are read separately to form images, and each of these images is printed on separate transfer paper. , a mode in which printing is performed on both sides of a single sheet of transfer paper (duplex mode of this one-page spread reading mode).

In this mode, either the operation of reading from the left page of the book manuscript 92 or the operation of reading from the right page is manually selected and set using the reading start page selection key 603 on the operation display board 313. can do.

FIG. 35 shows a timing chart when reading starts from the left page of the book manuscript 92.

The operation of this one-page spread reading mode is approximately the same as the operation of the duplex mode of the two-page spread continuous reading mode described above. A transfer request signal is sent to the main control board 310 for each page, and this causes the page turning reading unit 1 to move at a constant speed from the left page to the right page of the book document 92. (scanned).

FIG. 36 shows a timing chart when reading is set to start from the right page of the book original 92 in this one-page spread reading mode.

As is clear from this timing chart.

When reading starts from the right page of the book document 92, the moving speed of the page turning reading unit 1 for the left page, which is not read, of the book document 92 is the same as that of the first reading sensor unit 9 for the right page.
The scanning speed Vf is programmed to be faster than the scanning speed Vf of the scanning speed Vf in order to shorten the document reading time, that is, to improve the performance of the reading function.

In addition, in this one-page spread reading mode, the reading skip page setting key 618 allows
If a page is set to be skipped without being scanned, the page turning reading unit 1 for this reading skip page is faster than the scanning speed Vf of the first reading sensor unit 9 when reading. The page is moved at a high speed and is programmed to immediately perform this read skip page turning operation (timing chart I. is not shown).
.

By the way, in general, as shown in FIGS. 35 and 36, there are few printers in which the printer 300 can continuously request a transfer request signal from the main control board 310 in a normal state.

Therefore, when using such a general printer to perform this single-page spread reading mode, it is possible to achieve this by feeding two sheets of transfer paper in a stacked manner on the printer side. can be done.

Furthermore, if it is absolutely necessary to provide a certain distance between these two sheets of transfer paper due to the relationship between the transfer paper and the photosensitive drum to the register 1, the book original 92 may be The image data on the left page side is sent to the printer as is, and the image data on the right page side of the book manuscript 92 is passed through a delay memory, and the timing of transfer to the printer is delayed by a time corresponding to the distance between these transfer sheets. This can be realized by

A block diagram of an example of the latter case is shown in FIG. 37, and a timing chart thereof is shown in FIG. 38.

In this example, internal gates A and B on the main control board 310 allow the image data to be output as is to the printer through the left switch.

The image data output to the printer through the delay memory is configured to be delayed by a time Td.

Next, the double-sided mode in this one-page spread reading mode will be explained.

First, a case will be described in which the image data of the two left and right pages of the book manuscript 92 that has been viewed and listened to are printed on the front and back sides of one sheet of transfer paper.

In this case, it is necessary to reversely convey the transfer paper on the printer 300 side, so it takes some time after printing the image data of the left page and starting printing the image data of the right page. is multiplied.

Therefore, in this mode, the page turning reading unit 1 finishes reading the left page of the book manuscript 92 and reaches the vicinity of the binding section.

The driving of this page turning reading unit 1 is temporarily stopped.

Then, the printing of the left page image on the printer 300 side, this transfer, and the reversal conveyance of the copy paper are completed, and the printer 300 side
When a transfer request signal is issued from 00 to the main control board 310, the page turning reading unit 1, which had been stopped, is started again at the predetermined scanning speed Vf, and the right page of the book original 92 is read. The image data of the right page is transferred to the printer 300, and the right page image is printed on the back side of the transfer paper on which the left page image is printed on the first side, thereby performing one-sided printing.

A timing chart at this time is shown in FIG.

Next, a double-sided mode will be described in which an image is formed by matching the front and back sides of the printed transfer paper and the front and back sides of the document surface of the book original 92 in this one-page spread reading mode.

In this mode, Book! When starting reading from the left page of *92, as described above, instruct the printer 300 to continuously feed two sheets,
The transfer paper with the left page image printed on it is ejected as is, while the transfer paper with the right page image printed on it is reversed and conveyed.

Preparations are made for printing the left page image of the next page of the book manuscript 92 on the back side.

During this time, on the MFDS side, a page turning operation is performed for the manuscript page that has been read, and when the page turning operation on the MFDS side is completed, a reading operation for the document page is executed, and the previous page is turned over.
The read left page image is printed on the back side of the transfer paper on which the right page image has been printed and is conveyed inverted, and is then discharged.

Further, the right page image read at this time is printed on newly fed transfer paper.

This transfer paper, like the previous transfer paper, is
Then, preparations are made for printing the left page image of the next page of the book manuscript 92 on the back side.

By repeatedly performing such a series of operations, a transfer sheet on which a document image having the same page configuration as the book document 92 is printed is obtained.

The above is an example of the operation in the book document reading mode.

Here, setting of a book document in the double-page spread reading mode will be described.

In the connected device check in FIG. 29, the printer 300
If the reverse side of the paper can be ejected, the following display will be displayed.

Namely.

``If the book manuscript is written horizontally (left-handed), open the first page you want to read and place it facing upwards.
″ ″If the book manuscript is written vertically (right-handed), open the first page you want to read and set it upside down.

, the respective setting methods for horizontal writing and vertical writing of the book manuscript are instructed.

On the other hand, in the connected device check of FIG. 29, if the printer 300 is capable of only surface ejection, the following display is displayed.

In other words, ``If the book manuscript is written horizontally (opening on the left), open the last page you want to read and set it upside down.''If the book manuscript is written vertically (opening on the right), open the last page you want to read and open it upside down. Please set it facing upwards.
'', the respective setting methods for horizontal writing and vertical writing of the book manuscript are instructed.

In this MFDS, by setting the book original 92 in accordance with the above-mentioned instructions, the pages of the ejected transfer paper can be aligned regardless of the function of the printer 300 connected thereto.

In addition, there are two methods for inputting the number of pages to be turned in this MFDS using manual keys on the operation display board 313, and the user can select one of these input methods according to his/her preference. It has become.

One of these input methods is to press the read total page setting key 60.
6, etc., to set the total number of pages you want to read.Another input method is to use the reading start page setting key 604, the reading last page setting key 605, etc. to set the first page you want to read, This is a method of inputting the last page.

The number of pages to be turned in the MFDS may be input by any of the above methods, as long as the number of times the page is turned by the page-turning reading unit 1 can be calculated accurately.

Hereinafter, a method of calculating the number of page turns in each of the above-mentioned methods will be explained.

First, the case where the total number of pages to be read is input will be explained.

Here, if the total number of pages to be read is X and the number of pages to be turned is M, then when reading from the left page, (X-2)/2=M over 10...■ When reading from the right page teeth.

(X-1)/2=M over 10...■ By calculating the value of M from these formulas, the number of times of turning over can be obtained.

Next, the case where the first page and last page to be read are input will be explained.

Here, type Y for the first page you want to read and Z for the last page.
, and let the total number of pages you want to read be X.

x=z−y+i .

By the way, as described above, this MFDS is configured so that a single device can selectively read a book document and a sheet document and form images thereof.

The image reading mode for a book original is as described above, and the image reading mode for a sheet original in this MFDS will be described below.

As shown in FIG. 31, this sheet document reading mode includes a sheet document through mode.

There are a sheet original scanning mode and a sheet original manual opening/closing mode.

First, the sheet document through mode will be explained.

This sheet M document through mode includes a single-sided document reading mode and a double-sided document reading mode, and this double-sided document reading mode includes a same-position W1 reading mode and a different-position reading mode.

Selection of these modes is performed as shown in FIG.

First, in the single-sided original reading mode, FIG. 41 and
As shown in FIG. 42, in the sheet MIF1 tray 94,
The sheet original 200 is set face down, and in this state,
When the start key 600 is pressed, first, the turning conveyor belt drive motor 61 is powered on, and the drive roller 12 is turned on.
is rotated, and the turning conveyor belt 8 is rotated.

At this time, if there is no abnormality in each sensor and each input data, the paper feed clutch 128 is turned on, and the paper feed is carried out from the second paper feed pulley 130 attached to the first belt support roller 97 via the paper feed drive belt 127. .

The paper feed roller 96 is rotated, and the sheet original 200 is conveyed toward the paper feed separation pad 95.

The pad 95 separates the lowest one sheet original 200 from the other sheet originals, and the first
While being guided by the conveyance guide 108 and the second conveyance guide 109, the sheet is conveyed to a position where it contacts the turn-over conveyance belt 8.

Here, a paper feed sensor 26 is attached to the 211th feed guide 109, and after the paper feed sensor 26 detects the trailing edge of the sheet document 200, the paper feed clutch 128 is turned OFF. 200 sheet originals so that
The transport timing is set.

On the other hand, during this time, along with the rotation of the turning conveyor belt 8, a high AC voltage is applied to the second bias roller 11 from the AC IT source 35, and a striped charge pattern is formed on the turning conveyor belt 8.

As a result, the sheet J! is fed by the turning conveyor belt 8! The I document 200 is attracted and conveyed.

At this time, the linear speed of the turning conveyor belt 8 is 3 at the same magnification.
60 m/s, and when changing the magnification, the speed is changed according to the set magnification.

On the other hand, in this mode, the page turning reading unit 1 is at its end position 1. - It is located at C,
The first reading sensor unit 9 sequentially reads the document information of the sheet document 200 conveyed by the turning conveyor belt 8 (pixel density is 400 dpi).

After this reading, the sheet original 200 is transferred to the third and eleventh feeding guides 110 and the fourth facing roller 103. Fifth opposing roller 104. Sixth opposing roller 105. The paper is nipped and conveyed by the seventh opposing roller 106 and is ejected from the paper ejection port 117 onto the paper ejection tray 23 .

A paper discharge sensor 28 is attached to the third M2 feed guide 110 near the paper discharge port 117.

A paper jam of the sheet document 200 is detected.

When the reading operation of the first sheet original 200 is completed, the paper feed clutch 128 is turned on again at a predetermined paper feeding timing, and the second sheet original 200 is read.
is fed, and a reading operation similar to that described above is performed.

In this way, the sheet originals 200 set on the sheet original tray 94 are sequentially fed and read, and when the last (top) sheet original 200 is fed and the sheet original sensor 25 is turned off, @2 bias roller 11
After the power source of the MFDS is switched to a high-frequency AC voltage, the charge pattern on the turning conveyor belt 8 is neutralized, and this final sheet document 200 is ejected, all operations of the MFDS are stopped.

The above reading operation is performed using this M F D S! ,,
This is an operation when a printer having an i-side paper ejection function is connected, and thereby the sheet original 200 and the printed transfer paper are ejected in page alignment.

Here, if the printer connected to this MFDS has only a front side ejection function, the sheet original 200 is set face up on the sheet original tray 94, and the second reading sensor unit 14 reads the sheet original 200. By reading this sheet original 200, the sheet original 200 is
00 and printed transfer paper are page-aligned and ejected.

Further, the other operations when a printer with the front side paper ejection function is connected are the same as when a printer with the back side paper ejection function is connected.

Next, the double-sided document reading mode in this sheet document through mode will be explained.

In this double-sided document reading mode, a horizontally written sheet document is set on the sheet document tray 94 with its MM leading edge facing downward.

This is because the first reading sensor unit 9 and the second reading sensor unit 14 do not have memory.
This is because only mirror inversion in the main scanning direction can be used.

First, the basic operation of the same-position reading mode in this double-sided original reading mode is the same as that of the single-sided original reading mode, as shown in FIGS. 43 and 44, but in this mode, page turning Reading unit 1
However, its home position is 151-A.
At the same position as the second reading sensor unit 14 on the side of the document table 18, reading the document information on both the front and back sides of the sheet document 200 is performed by these first reading sensor units.
-9 and the second reading sensor unit 14 simultaneously and in parallel.

On the other hand, the basic operation of the alternate position reading mode in this double-sided original reading mode is the same as that of the single-sided original reading mode, as shown in FIGS. 45 and 46. Unit 1 is located at its end position [1-C.

As is clear here, in this separate position reading mode, the distance between the first reading sensor unit 9 and the second reading sensor unit 14 in the vertical reading position is larger than the length of the maximum size document. Document information on both the front and back sides of the nine-sheet document 200 read by the first reading sensor unit 9 and the second reading sensor unit 14 of JB et al. is output in chronological order.

Next, the sheet scan mode in the sheet) II H reading mode will be explained.

In this sheet scan mode, Fig. 47 and Fig. 4
As shown in FIG. 8, a sheet original 200 is set on the sheet original tray 94 facing upward.

In this state, when the start key 600 is pressed, first,
The power of the turning conveyor belt drive motor 61 is turned on, the drive roller 12 is rotated, and the turning conveyor belt 8 is rotated.

At this time, if there is no abnormality in each sensor and each input data, the paper feed clutch 128 is turned on, and the paper is fed from the second paper feed pulley 130 attached to the first belt support roller 97 via the paper feed drive belt 127. The paper feed roller 96 is rotated,
Sheet original 200 is conveyed toward paper feed separation pad 95 .

This paper feed separation pad 95 separates the lowest one sheet 1 to document 200 from the other sheets yK documents.
While being guided by the first conveyance guide 108 and the second conveyance guy FIO9, the sheet is conveyed to a position where it contacts the turn-over conveyance belt 8.

Here, this second conveyance guide 109 includes a paper feed sensor 2.
6 is attached, and by this paper feed sensor 26,
After the trailing edge of the sheet original 200 is detected, the paper feed clutch 128 is turned OFF.
The transport timing is set.

On the other hand, during this time, along with the rotation of the turning conveyor belt 8, a high AC voltage is applied to the second bias roller 11 from the AC power supply 35, and a striped charge pattern is formed on the turning conveyor belt 8.

29, the fed sheet document 200 is attracted and conveyed by this turning conveyance belt 8.

The linear speed of the turning conveyor belt 8 at this time is 5360 rr
n/s, and when the leading edge of the sheet document 200 reaches the home position 1-A, the rotation of the turning conveyor belt 8 is stopped.

On the other hand, in this mode, the page turning reading unit 1 is located at its home position 1-A, and after the rotation of the turning conveyor belt 8 is stopped, the page turning reading unit 1 is moved to the turning unit drive motor 60. While being moved toward the end position 212 1!1-C by the first reading sensor unit 9, the sheet document 2 conveyed by the turning conveyor belt 8 is
00 original information is read sequentially (pixel density is 400
dpi).

When reading this document information, the first bias roller 3
Then, a high frequency AC voltage is applied by the first high voltage power supply 320, and the charge pattern formed on the turning conveyor belt 8 is neutralized.

This prevents the sheet document 200 from entering the page-turning reading unit 1 when the page-turning reading unit 1 is moved back.

After the page turning reading unit 1 has finished reading the sheet original 200 in this manner, it is returned to its home position 11-A.

Also, when the page turning reading unit 1 returns, the first reading sensor unit 9 reads the sheet document 200.
At the same time, a high-voltage AC voltage is applied to the first bias roller 3 from the first high-voltage power supply 320, and a striped charge pattern is formed on the turning conveyor belt 8. The paper is turned over and is attracted to the conveyor belt 8 and fixed.

After the above-described operation is repeated the set number of times, the turning conveyor belt drive motor 61 is turned on, the turning conveyor belt 8 is rotated, and the sheet document 200 that has been read is read.

The paper is discharged from the paper discharge port 117 onto the paper discharge tray 23.

In the third conveyance guide 110 near this paper ejection port 117,
A paper discharge sensor 28 is attached to detect a paper discharge jam of the sheet document 200 that is being discarded.

Then, when the reading operation of the first sheet original 200 is completed, the paper feed clutch 128 is turned on again at a predetermined paper feeding timing, and the second sheet original 200 is read.
0 is fed and a reading operation similar to that described above is performed.

In this way, the nine sheet originals 200 set on the sheet original tray 94 are sequentially fed and read, and the last (upper R) sheet original 200 is fed, and the sheet original sensor 25 is turned off. Then, the second bias roller 1
After the 1i source of No. 1 is switched to the high-frequency AC voltage of the second high-voltage power supply 321, the charge pattern on the turning conveyor belt 8 is neutralized, and this final sheet document 200 is discharged.

All operations of the MFDS are stopped.

Next, the sheet document manual opening/closing mode in the sheet document through mode will be described.

As shown in FIG. 49 and FIG. 50, the operation of this sheet document manual opening/closing mode is performed by turning on each power source for the sheet conveying means and the sheet suction at nine times in the operation of the sheet document scan mode described above. 〇The sheet document is changed to the FF state, and the sheet original is replaced manually by the operator.

The operation control of the page turning reading unit 1 in this MFDS will be explained below.

FIG. 51 shows an operation control circuit for the page turning reading unit 1 in this MFDS.

This operation control circuit controls the reciprocation of the page turning reading unit 1 and its speed, and is incorporated into the turning unit movement control board 312.

In FIG. 51, a microcomputer 520 (hereinafter simply referred to as microcomputer) also performs mode control and sequence control of this MFDS (details are not shown).

As such a microcomputer 520, for example, μPD7
Programmable interval timer 5 with 1054G
21 (hereinafter simply referred to as a timer) is connected.

This timer 521 is for sending out a pulse width modulated PWM output for controlling the speed of the instant-acting motor 60 (DC motor) of the turning unit instant motion motor 60 (DC motor) under the control of the microcomputer 520 .

The period of this PWM control is 50 (μ5ec), and is controlled with a resolution of 400 bits.

This timer 521 is connected to an 8 MHz oscillator 522 and is configured to be supplied with a clock signal.

Further, the turning unit drive motor 60 is connected to the microcomputer 52.
0, the driving transistors Q, ~Q.

connected via.

That is, when the transistors Q, , Q, are ON and the transistors Q, , Q, are OFF, a current is supplied to the turning unit drive motor 60 to rotate one clockwise (CW), and the transistors Q, , Q .

is ON, transistor and Q are OFF,
The turning unit drive motor 60 has one counterclockwise direction (CC
A rotating current is supplied to V).

Here, the turning unit drive motor 6o is rotated clockwise (
CW), the page turning reading unit 1 is moved forward, and when the turning unit drive motor 60 rotates counterclockwise (CCW).

The page turning reading unit 1 is set to be moved backwards.

In this case, the rotation direction of the reunit drive motor 60 is determined by the boat PF6 of the microcomputer 520. It is controlled by the CW multiplied signal and the CCW signal respectively output from the PF7.

Further, an encoder 152 that generates pulses according to the rotation of the turning roller 2 is directly connected to the turning roller 2.

Here, the encoder 152 generates two pulse signals with different phases depending on the amount of rotation and the direction of rotation of the turning unit drive motor 6o.

One is the A-phase encoder pulse ENCA.

The other one is the B-phase encoder pulse ENCB.

The A-phase encoder pulse ENCA is input to the counter input terminal C1 of the microcomputer 520 via the frequency division multiplexer 524.

Therefore, the microcomputer 520 determines that the pulse interval of the A-phase encoder pulse ENCA is determined by the internal counter of the microcomputer 520 (the oscillation frequency of the oscillator 525 of the microcomputer 520 is 10
MHz).

The input signal to this counter input terminal C1 is an interrupt input, and during processing of the interrupt program, the value of the measurement data of the pulse interval of the A-phase encoder pulse ENCA is read.

Based on this data, the turning unit parking motor 60
Calculation of the rotation speed of the motor, calculation of the motor control position by proportional/integral control calculations, output (data loading to the timer 521), etc. are performed.

Specifically, the output of the A-phase encoder pulse ENCA is divided into 1, 1,
By dividing the frequency by 2.4.8, an interrupt input signal is provided to the counter input terminal C1.

Here, when the frequency is divided by 1, the first reading sensor unit 9
However, by one pulse of the encoder 152, it becomes 0.116
By moving m, the speed is calculated inside the microcomputer 520 according to the interrupt interval.

Then, the output timer value is determined by proportional/integral calculation processing based on the calculated speed data.

In addition, the A-phase encoder pulse ENCA, and.

The B-phase encoder pulse ENCB is the flip-flop 5.
The signal is inputted to the input terminal PC3 of the microcomputer 520 via the input terminal PC3, and is used to detect the phase difference between the two, and the direction of rotation of the turning unit drive motor 60 is determined based on the phase difference.

That is, the rotation direction of the turning unit drive motor 60 is determined by inputting the state of the B-phase encoder pulse ENCH at the rising edge of the A-phase encoder pulse ENCA to the board of the microcomputer 520.

Next, speed control of the turning unit drive motor 60 will be explained.

The speed control of this turning unit drive motor 60 is PWM.
done by control.

First, when the page turning reading unit 1 scans the scanner,
That is, when the turning unit drive motor 60 rotates clockwise, the transistor Q□ is turned on, and the gate 527 is turned on by the PWM power from the timer 521.
The transistor Q4 is turned ON to 10FF to generate a potential difference between both terminals of the turning unit drive motor 60, and the turning unit drive motor 60 is rotated at a speed corresponding to the duty ratio of the PWM signal.

On the other hand, when the page turning reading unit 1 returns,
Contrary to the above case, the transistor Q1 is turned on, and the PWM output from the timer 521 turns the transistor Q8 into 0N10FF state via the gate circuit 528, creating a potential difference in the opposite direction between both terminals of the turning unit drive motor 60. The turning unit drive motor 60 is rotated at a speed corresponding to the duty ratio of the PWM signal.

(Effects of the Invention) According to the present invention, when the page turning means and document reading means are started, the upper part of the main body of the apparatus remains open, or the book document placed thereon is too thick. If the upper part of the device main body remains incompletely closed, page turning scanning of the book manuscript can be prohibited, and this stabilizes the page turning reading scanning and improves the stability of the page turning scanning of the book manuscript. Damage can be prevented.

Further, according to one aspect of the present invention, as described above, when page turning scanning of a book document is started while the upper part of the main body of the apparatus is left open, a warning display can be displayed. In addition to preventing damage to the
It is possible to improve the operability when reading a document.

[Brief explanation of drawings]

Figure 1 is a schematic sectional view of the multi-function document scanner (MFDS) implementing the present invention, Figure 2 is a schematic cross-sectional view of the drive system of the MFDS, and Figure 3 is the MFDS. Schematic plan view of the immediate action system of S, 4th
The figure is a perspective view of the end of the page turning reading unit in the MFDS, ff15 is a cross-sectional view of the roller end showing the support structure of the roller constituting the page turning reading unit, and FIG. 6 is the transport section lock in the MFDS. FIG. 7 is a side view showing a state in which the device is unlocked; FIG. 7 is a side view showing a state in which the transport section locking device starts locking; FIG. 8 is a side view showing a state in which the transport section locking device completes locking;
FIG. 9 is a perspective view showing the appearance of the printer equipped with the MFDS, FIG. 10 is a perspective view showing the appearance of the printer equipped with the MFDS when the transport section is open, and FIG. 11 is the page turning reading unit. FIG. 12 is a perspective view of the vicinity of the end of the first reading sensor unit disposed in the interior; FIG. 12 is a side view of the vicinity of the end of the first reading sensor unit;
The figure is a partially enlarged cross-sectional view showing the support structure of the end of the first reading sensor unit, FIG. 14 is a side view of the rear side of the turning roller 2 of the page turning reading unit, and FIG. 15 is a document loading structure in the MFDS. FIG. 3 is a cross-sectional view showing the structure of a central reference positioning portion of the placement surface. FIG. 16 is a plan view of the operation display board in the MFDS, and FIG. 17 is a schematic sectional view of the printer. FIG. 18 is a plan view of the writing section of the printer, FIG. 19 is a diagram of the operation of a switching claw that switches the transfer paper conveyance path of the printer, and FIG. 20 is a schematic sectional view of the page turning and reading unit. FIG. 21 is a cross-sectional view showing the configuration of the J-reading sensor unit, FIG. 22 is a schematic cross-sectional view showing the operating mode of the MFDS, Part 23 is an explanatory diagram of the flipping conveyor belt in the MFDS, and FIG. 24 25 is a partial perspective view showing the page turning operation of the turning conveyor belt, FIG. 25 is a line diagram showing the pitch characteristic of the conveying force of the turning conveyor belt, and FIG. 26 is a diagram showing the pitch characteristic of the adsorption force of the turning conveyor belt. 27 is a diagram showing the applied voltage characteristics of the conveying force of the above-mentioned turning conveyance belt, FIG. 28 is a line diagram showing the applied voltage characteristics of the adsorption force of the above-mentioned turning conveyance belt, and FIG. 29 is a line diagram showing the applied voltage characteristics of the above-mentioned turning conveyance belt. 30 is a mode transition diagram when the MFDS operates in book document reading mode, FIG. 31 is a mode transition diagram when the MFDS operates in sheet document reading mode, and FIG. 32 shows each of the above modes. FIG. 33 is a flowchart showing the operation in the book original reading mode, FIG. 34 is a timing chart showing the operation in the two-page spread continuous reading mode in the book original reading mode, and FIG. 35 is a flowchart showing the operation in the book gM reading mode. FIG. 36 is a timing chart showing the operation in the one-page spread reading mode in the reading mode; FIG. 37 is a timing chart showing the operation when the book manuscript is set to be read from the right page in the one-page spread reading mode. 38 is a block diagram of a circuit that delays the transfer timing of data read in the one-page spread read mode, and FIG. 38 shows the operation of the circuit that delays the transfer timing of data read in the one-page spread read mode. 39 is a timing chart showing the operation of the double-sided mode in the one-page spread reading mode, FIG. 40 is a flow chart showing the switching operation of the sheet original through mode in the sheet original reading mode, and FIG. A flowchart showing the operation of the one-sided reading mode in the sheet document through mode, FIG. 42 is a timing chart showing the operation of the one-sided reading mode, and FIG. 43 is the sheet J! c.
44 is a timing chart showing the operation of the same position reading mode in the sheet document through mode; FIG. 45 is a flow chart showing the operation of the same position reading mode in the sheet document through mode; FIG. 45 is a flowchart showing the operation of the same position reading mode in the sheet document through mode. 46 is a timing chart showing the operation in the separate position reading mode, FIG. 47 is a flowchart showing the operation in the sheet document scanning mode in the sheet document reading mode, and FIG. 48 is a timing chart showing the operation in the sheet document scanning mode. FIG. 49 is a timing chart showing the operation of the mode, and FIG. 49 is a flowchart showing the operation of the sheet document manual opening/closing mode in the sheet document reading mode. FIG. 50 is a timing chart showing the operation of the sheet document manual opening/closing mode, and FIG. 51 is a scanning control circuit diagram of the page turning reading unit. A...Multi-function document scanner (MFDS), 1...Page turning reading unit, 1-A...Home position, i-C...
End position position, 8... Turning conveyor belt, 9
... Turning conveyor belt, 14... Second reading sensor unit, 24... Central reference positioning section, 52...
- Turning unit drive belt, 6o... Turning unit drive motor, 61... Turning conveyor belt driving motor. 92... Book manuscript, 200... Sheet manuscript, 30
0... Printer, 310... Main control board, 3
11... Turning conveyor belt annotation control board, 312...
. . . Turning unit motion control board, 313 . . . Operation display board, 314 . . . First image processing board, 317
...Second image processing board. Part 6 Figure f Island 7 Matakagi Broom (1 Figure Gen I ε Figure (a) Bald? Figure 4 Chihito is the tip of the tip 47 Figure

Claims (1)

[Scope of Claims] 1. A page turning means for turning over the pages of a book manuscript placed facing upward at a manuscript reading position on a manuscript placing surface one by one, and the spread manuscript of this book manuscript. In a book manuscript reading device having a manuscript reading means for scanning a surface to read manuscript information, and in which an upper part of the apparatus main body is configured to be openable and closable with respect to a lower part of the apparatus main body, detecting an open/closed state of the upper part of the apparatus main body. and an opening/closing detection means for detecting an open state of the upper part of the main body of the apparatus, and a start canceling means for canceling the start of the page turning means and the original reading means when the opening/closing detection means detects that the upper part of the main body of the apparatus is opened. Book manuscript reading device. 2. A page turning means for turning over the pages of a book manuscript placed facing upward at the manuscript reading position on the manuscript placing surface one by one; A book manuscript reading device having a document reading means for reading information, and in which an upper part of the device main body is configured to be openable and closable with respect to a lower part of the device main body; A book document reading device characterized in that the opening/closing detection device includes a warning display device for displaying a warning when the opening/closing detection device detects an open state of the upper part of the main body of the device.