JPH0263076A - Image forming device - Google Patents

Abstract

PURPOSE:To write image such as the consecutive number of pages and to economically increase information quantity by, updating set data sequentially during carrying a carrying original. CONSTITUTION:E.g., in the case of six sheets of the originals, when they are inputted by ten keys, data is read out from the sixth memory region of a character generator and supplied to a write unit KA. The originals are set upside down on a feeding tray and the write unit KA processes writing data from this sixth memory region since from the last paper is fed sequentially. In such a manner in a character write mode, page write images are consecutively formed until the originals on the feeding tray are disappeared and until the originals at an image reading position C are disappeared. Thus, information quantity which is formed image are increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention 1 (Industrial Application Field) The present invention is applied to an image forming apparatus using electrophotographic technology.

(Prior Art) Conventionally, in an ordinary copying machine of an image forming apparatus using electrophotographic technology, in order to improve the amount of information on a copied sheet, images other than the original image, such as images of consecutive numbered pages, are used. There was nothing that could be formed. Furthermore, although it is possible to form images other than the original image using a digital copying machine, there is a drawback that the cost is significantly high and it is not practical.

(Problems to be Solved by the Invention) As described above, conventional image forming apparatuses have a drawback in that there is no apparatus for economically writing images such as serial number pages.

An object of the present invention is to provide an image forming apparatus that performs image writing processing in an analog manner and economically improves information ω of an image-formed object.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned problems, the present invention includes a stacking section for stacking original documents, and a document image processing section on the downstream side of the document conveyance from the stacking section. The picture that reads it! A document table provided in the reading section and a collection h! which collects and holds documents on the downstream side of the document conveyance from this document table. i section; a conveying means for conveying the original from the stacking section to the stacking section; and the image I! an image carrier that forms an electrostatic latent image from an image read by a reading unit; an image forming unit that forms an image read by the image reading unit on the image carrier; A character writing means for forming an image indicating the number of pages in the image to be formed; a storage means for storing data of the image formed by the character writing means; An image forming apparatus comprising: a setting means for setting data to be output to the image forming apparatus; and an updating means for sequentially updating the data set by the setting means when the document is conveyed by the conveying means.

Furthermore, it has a pressing member that can be opened and closed and is supported at one end that presses the manuscript against the manuscript table, and the updating means sequentially updates the data in the storage means when the transporting means transports the original and when the pressing member opens and closes. An image forming apparatus characterized by:

Furthermore, in the conveying path when the smallest document that can be conveyed by the conveying means is conveyed, and among the parts pressed by the pressing member, the updating means is provided in the vicinity of the part where the pressing member is supported. Provides a characteristic image forming 5A system.

(Function) A document is placed in the automatic document feeder of the image forming device,
When the data to be outputted first in the storage means is set by the setting means and image formation is started, the originals are conveyed one by one to the image reading section by the conveyance means and image formation is performed.

Here, a fill-in image is formed by the writing means based on the first output data in the storage means. When the image forming process for the -th document is completed, that document is ejected, and the next document is conveyed to the image reading section. At this time, the updating means determines the next data to be output from the storage means as the document passes. This data is supplied to the interpolation means.

Then, the image forming operation is performed in the same manner as described above. Write operations are performed in this manner sequentially.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a schematic cross-sectional view of a copying machine as an image forming apparatus according to an embodiment of the present invention. On the top of the copying machine body (hereinafter referred to as the body top), there is a glass automatic document feeder C.
A and an operation panel SO are provided, and an overprint paper cassette section 3 and an unfeeding paper cassette section 4 are provided as paper feeding sections on the right side of the main body. A paper feed cassette 4A is attached. Overprint paper cassette 3
The cassette cover A serves as a manual paper feed stand 5A for manually feeding copy paper P1 as appropriate, and the manual paper feed devices provided therein are collectively referred to as a manual paper feed unit 5. The copy paper P taken out at each paper feed section is stopped by a paper stop switch 18 provided at the entrance of the image forming process.
transported to. A paper discharge tray 6 is attached to the left side of the main body.

Next, the internal structure of the main body 1 will be explained. A photosensitive drum 7 is disposed approximately at the center of the main body 1. Around the photosensitive drum 7, a charging device 8. Optical system 9.
A writing unit KA for forming an image by adding arbitrary characters to a document image, and a developing device 10. Transfer charger 11. A stripping charger 12, a cleaning device 13, a static elimination lamp 14, and the like are arranged in this order. A copy paper transport path 17 is formed below the photosensitive drum 8 to guide the copy paper fed from each paper feed section from the paper stop switch 18 to the paper output tray 6. A paper stop switch 18, a pair of registration rollers 19, a transfer charger 11, a peeling charger 12, a fixing device 20, a paper discharge device 21, and a paper discharge tray 6 are arranged around the paper in this order from the upstream side.

The fixing device 20 includes a heat roller 2OA and a pressure roller 2O.
It is composed of B. The heat roller 2OA and the pressure roller 2OB are provided above and below the copy paper conveyance path 17. The heat roller 2OA and the pressure roller 2OB are
By being rotationally driven, it grips the copy paper and conveys the toner image transferred to the copy paper downstream while heating and fixing it.

Each of the paper feed sections described above is provided as a pre-process of the copy paper transport path 17. Overglaze paper cassette part 3 is overglaze paper)]
It is a means for feeding the copy paper P2 stored in the set 3A to the copy paper conveyance path 17, and it is a means for feeding the copy paper P2 stored in the set 3A to the copy paper conveyance path 17, and is used to feed the copy paper P2 stored in the set 3A to the pick-up roller 15. Paper feed roller 22
B, a separate O-RA 22C, etc. The sketch paper force hit unit 4 is a means for supplying the copy paper P3 stored in the unfeed paper cassette 4A to the copy paper conveyance path 17, and is a means for supplying the copy paper P3 stored in the unfeed paper cassette 4A to the copy paper transport path 17. It is composed of a paper feed roller 22D, a separation roller 22E, and the like.

The manual paper feed unit 5 is a device that supplies the copy paper P1 stacked on the manual paper feed table 5A to the sandwiching portion between the paper feed row 5228 of the overprint paper cassette unit 3 and the separation roller 22C. It is composed of etc.

The above-mentioned optical system 9 includes an exposure lamp 24. whose back is surrounded by a reflector 23. Mirrors M1 to M6 and lenses 25
It has a configuration with.

Inside the main body Y, an upper frame and a lower frame (not shown) are pivotally supported at one end via a support shaft (not shown), and the other ends of both frames can be opened at a predetermined angle, for example, 30 degrees. It is composed of

Inside the upper frame, there is a charger 8 for charging around the photoreceptor drum 7. Optical system 9. Exposure lamp 24° developing device 10.
It has a configuration in which various devices such as a cleaning device 13 and a static elimination lamp 26 are provided. Furthermore, the upper frame has a document table 2. An overprint paper cassette section 3 and a manual paper feed section 5 are attached to constitute an upper unit 1A.

The lower frame includes an unfeed paper cassette section 4. Transfer charger 11. Peeling band N device 12. A fixing device 20 is provided by appropriate means and constitutes the lower unit 1B.

The above-mentioned automatic document feeder ff1cA will be explained in detail later.

When the main unit 1p front cover is rotated and removed, the copy paper transport path 17 is opened via a housing opening device (not shown).
It is configured so that it can be opened and closed along the With such a case that can be moved along the copy paper transport path 17, it is possible to easily replace the various rollers interposed therein, and to remove copy paper that has failed in transport.

The operation of the apparatus configured as described above will be explained below.

The photoreceptor drum 7 is moved in the direction indicated by the arrow a in the drive night structure (not shown).
direction in synchronization with the optical system 9.

When the photoreceptor drum 7 starts operating, the charger 8 for charging
Light is irradiated uniformly. The optical system 9 forms a projected image of the document using scattered light on the surface of the photoreceptor drum 7 to form an electrostatic latent image. The developing device 3A 10 develops the static Fi latent image on the photosensitive drum 7 with a 1-toner. The toner image formed on the photosensitive drum 7 as described above is transferred to the transfer band ffi.
1 vessel is 1 vessel above 1 level.

At this time, if a page number indicating the page number of the image currently being formed is to be written in addition to the original image, characters are written on the surface of the photosensitive drum 7 by the writing unit KA. The configuration and operation of this writing unit KA will be explained in detail later.

On the other hand, the projection paper P1, P2 or P3 (hereinafter referred to as copy paper P) supplied from each paper feed section is fed by a pair of registration rollers.
By the rotation of 9, the image is conveyed onto the transfer charger 11. The rotation of the registration roller pair J9 is synchronized so that a drive signal is sent from the control device after a predetermined period of time has elapsed after the paper stop switch 18 is turned on so that the toner image on the photosensitive drum 7 and the copy paper P overlap. .

The projection paper P supplied onto the transfer i-electronic device 11 is the transfer band 1! At @11, the toner image on the photosensitive drum 7 is transferred. The copy paper P on which the toner image has been transferred is separated by a peeling band'
At step 1112, it is peeled off from the photoreceptor drum 7 and fixed @ mounting W1.
Leads to 20. A toner image is melted and fixed on the copy paper P by a fixing device 20 , and the copy paper P is discharged onto a paper discharge tray 6 by a paper discharge device 21 .

On the other hand, after the toner image on the photoreceptor drum 7 is transferred to the copy paper P, the residual toner remaining on the photoreceptor drum 7 is scraped off by a cleaning device 13. Furthermore, the afterimage of the charge on the photoreceptor drum 7 is removed by the static elimination lamp 14 in preparation for the next copying operation.

In the above series of operations, the microcomputer controls the ill fill objects such as motors, lamps, and heaters in a fixed sequence in accordance with signals from the operation switch, detection switches provided at appropriate locations, and other signal output means. This is achieved by

Next, we will discuss the drive system of the above-mentioned loading unit KA in the third section.
This will be explained with reference to FIG. 8□□□.

FIG. 3 is a perspective view of the drive system of the self-loading unit KA and the photosensitive drum 7. The writing unit KA is provided at a predetermined distance from the surface of the photosensitive drum 7, which is rotationally driven in the direction of the arrow a in the figure. An arrow 9A in the figure indicates scattered light of the original image supplied by the optical system 9, and
The image is focused on B. The filling unit KA is supported by shafts 30 Δ and 30 B whose both ends are fixed in the main body 1 so as to be parallel to the central axis direction of the photosensitive drum 7 . Further, the writing unit KA is fixed to a part of the endless timing belt 31.

The timing belt 31 has one end supported by a pulley 32A, and the other end connected to the pulse motor 3 via a pulley 32B.
It is supported by 3. The pulse motor 33 is connected to a control device (not shown), and its rotation direction and rotation speed are controlled. By this rotational operation of the pulse motor 33, the writing unit KA is operated in the direction indicated by the arrow in the figure, and is set at a predetermined position in the direction indicated by the arrow in the figure. The writing unit KA is connected to a control device (not shown) via a harness 34, and is supplied with character data to be written.

Next, the writing unit KA will be explained in detail with reference to FIGS. 4 to 8.

FIG. 4 is a perspective view of the writing unit KA.

Looking at FIG. 4, it can be seen that the writing unit KA is marked with an arrow C.
A shutter 41' is provided with one end pivotally supported on a support shaft 40 so as to be able to move in an arc in a direction. A pinion 42 is fixed to one end of the support shaft 40 . Opposing this binion 42, a rack 43 is provided inside the writing unit KA. The binion 42 and the rack 43 are provided so that their respective uneven surfaces fit together. The rack 43 is supported by a solenoid 43.

The operation of the shutter 41 mentioned above will be explained using FIG. 5.

The rack 43 operates in one direction (as shown in the arrow) by turning on/off the solenoid 44. The solenoid 44 is connected to a control device (not shown). The turning on/off of the solenoid 44 is controlled by a drive signal from the control device (not shown). When the solenoid 44 is turned on and the rack 43 is pulled upward, the pinion 42 is moved in an arc in the direction of arrow 01 in the figure.
Along with this movement, the shutter 41 is also moved in an arc in the direction of arrow C1 in the figure via the support shaft 40. When the solenoid 44 is turned off, the opposite operation is performed and the shutter 41 is moved in the direction shown by the arrow C.
Circular movement is performed in two directions.

Next, the internal structure of write unit KA will be explained with reference to FIG.

FIG. 6 is a sectional view of the writing unit in FIG. 4 taken along the line KA@EE' in the direction of the arrow.

Inside the writing unit KA, an LED array 50 is provided so as to face the photosensitive drum 7 . The LED array 50 is connected to the PC board 51, and each chip lights up! Ill be.

An imaging element 52 such as a SELFOC lens array is fixedly disposed between the LED array 50 and the photosensitive drum 7.

The light beam output from the LED array 50 is transmitted to the imaging element 52.
, the image is formed on the image forming position f on the photoreceptor drum 7. At this time, the shutter 41 is operated in the direction of the arrow C1 in the figure as described above. Therefore, the scattered light 9A supplied to the writing position @f on the photosensitive drum 7 is blocked.

The above-described ED array 50 has an appearance shown in FIG. 7.

[In the ED array 50, LED chips 60 are arranged in a staggered manner.
The configuration includes one. The width FO of the LED chip 60 is longer than the distance obtained by dividing the length 8 by 11 from the top end of the top chip to the bottom end of the bottom chip of the LED chip 60. This is the adjacent Besa l-E D chip 6
This is because the 0s are arranged so as to expose the same position with each width F1. The reason why the LED chips 60 on the LED array 50 are arranged as described above is to avoid creating unexposed areas between adjacent LED chips 760.

The on/off timings of the shutter 41 and the LED array 50 described above are shown in timing charts 1 to 1 in FIG.
Explain with reference to.

Time t1. shown in FIG. t2. Δt1 and Δt2
is explained below.

tl: Time required for the shutter 41 to completely block the scattered light 9A after the input signal is supplied to the cutter 41.

t2: Time required for the shutter 41 to completely release the scattered light 9A after the off signal is supplied to the shutter 41. - Δt1: Time from when the LED array 50 starts turning on Ill all until the shutter 41 is supplied with an on signal.

Δt2: Time from when the shutter 41 completely releases the scattered light 9A until the lighting t, II ill of the LED array 50 is ended.

By controlling the lighting of the LED array 50 at the above-described timing, it is possible to prevent a shape formed by the time required for opening and closing the shutter 41 from being formed on the photoreceptor drum 7 as an electrostatic latent image.

The form of the write operation in the above-mentioned write unit KAk: will be explained with reference to FIGS. 9 and 11.

FIG. 9 shows the LED array 50. in write unit KA.
FIG. 4 is a perspective view with an imaging element 52 and a shutter 41 removed. The width S I-1 indicates the imaging width of the scattered light 9A on the photoreceptor drum 7.

Here, the width SH, the width A, the width G hidden by the shutter 41
The relationship between the vertical width G2 and the width I of the written character is determined by the scattered light 9A.
This will be explained with reference to FIG. 10, which is a view seen in the direction of the arrow in the figure.

As can be seen from FIG. 10, the relationship is @1lG2>width SH2 width A>horizontal width G1>width 1.

The reason for setting the vertical width G2>width SH is, of course, to completely block the scattered light 9A from reaching the writing position on the surface of the photosensitive drum 7.

The reason for setting width A>width G1>width I is for the following purpose. The reason why width A>width G1 is as described above. The reason why the width G1>width ■ is set is that when the width is set to 016 width ■, a portion of (width I - width G1) is imaged by the scattered light 9a, resulting in incomplete characters.

Therefore, each device was constructed to maintain the above-mentioned relationship in order to form a complete written character.

The space-filling character KK in the above-mentioned apparatus is as shown in FIG. 11, for example. The written black portion is formed when the LED chip 60 is turned off. However, no grid-like lines are actually formed in the Yukomi character KK.

Next, the above-mentioned automatic rough stone feeding rICA will be explained with reference to FIG.

Figure 1 shows self! ! It is a sectional view of the lI Haraaki feeding device ff1cA.

The automatic document feeder CA is divided into two parts depending on functions. Paper feed unit 140 that supplies the original GE on the right side in the figure
On the left side of the paper feed section 140, there are provided a transport/discharge section 142 for setting the document GE at the image reading position C (image reading section) on the document table 2 (glass plate) and discharging the original IGE. .

A paper feed tray 143 is formed on the right side of the paper feed section 140 as a means for setting the documents GE in a stacked state.

The original GE is fed to the paper feed tray 1 by the paper feed means of the paper feed unit 140.
The paper is fed from 43 to the left.

This paper feeding means includes a pickup roller 144 . Empty switch 145 for detecting the presence or absence of document GE. Paper feed roller 146, separation roller 14
7. It is composed of a jam switch 148A that detects a jam, a pair of registration rollers 149, and a size switch 150 that detects the size of the original IGE in the direction perpendicular to the conveyance direction of the original IN. Paper feed roller 146 and separation roller 147
and the registration I-roller pair 149 are each pressed against each other by a spring or the like (not shown). All rollers are
It is rotatably provided, especially the pickup roller 1.
In addition to the above-mentioned movement, 44 is also provided so as to be able to move freely in an arc up and down in a predetermined range using a support shaft as a fulcrum. Also, paper feed section 1
40 is provided with a paper feed motor (not shown) as a driving means.

Furthermore, an encoder 152 that generates pulses when the motor rotates, and a motor clock sensor 151 that controls on/off of the paper feed motor are provided on the upper and lower sides of the paper feed motor.

The conveyance/discharge unit 42 is provided with endless conveyance bells 1 to 171 that are suspended between conveyance pulleys 170A and 170B and convey the supplied original N along the document table 2. Furthermore, presser rollers 172A, 172B, 172C, and 172D press this conveyor belt 71 onto the document table 2, a document stopper S driven by a solenoid to stop the document at the image reading position I2C, and a rough stone GE on the document table 2. A pair of paper discharge reversing rollers 17 for discharging the paper while turning it upside down.
3. Consists of a pair of paper ejection rollers 174 and a paper ejection tray 175 that receives the ejected original IGE. A jam switch 148Bt+ for detecting a jam is provided downstream of the paper discharge reversing roller pair 174.

This jam switch 148B is provided as a detection means for detecting passage of the original IGE. The paper ejection reversing roller pair 173 and the paper ejection roller pair 174 are each pressed against each other by a spring or the like (not shown).

The transport/discharge section 142 is provided so as to be openable and closable in correspondence with the document table, and also serves as a document table cover.

For this reason, the conveyance/discharge section 142 includes a
A set switch 176 is provided to detect opening and closing of itself. Further, the conveyance/discharge section 142 is provided with a conveyance motor (not shown) as a driving means for each conveyance roller. An encoder 78 that generates pulses when the transport motor rotates, and a motor clock sensor 77 that controls on/off of the paper feed motor are provided.

Next, the relationship between the position of the written characters KK and the position of the LED array 50 on the document GE transported by the automatic document feeder CA will be explained with reference to FIG.

FIG. 12 is a front view of the document table 2. FIG.

Here, the original GE placed on the left side of the original platen 2 in the figure.
In the case where the insertion position of the writing character KK is the position 70A, the position of the LED array 50 of the writing unit in the drive system of the writing unit KA is as follows.

In other words, in the image-formable range WA on the photosensitive drum 7 (hereinafter referred to as range WA), when position [70A is a distance of x 2 from the upper limit of the range WA, the position of the LED array 50 is at the lower limit of the range WA. The position is controlled to be at a distance of x2 from. This is the lens 2 in the optical system 9 mentioned above.
At step 5, the original tiK image is inverted. Since the inverted original image is supplied to the photosensitive drum 7, the position of the LED array 50 is adjusted to the above-mentioned position.

Next, the operation panel SO for executing the above-described character writing will be explained using FIG. 13.

FIG. 13 is a front view of the operation panel SO.

The right block in the figure has a preheating key 80 for preheating the main body 1. An interrupt key 81 for setting an interrupt mode for interrupt copying and a copy key 82 for executing a copying operation are provided.

A numeric keypad 83 is provided to the left of the copy key 82 for setting the number of copies and the like. This numeric keypad 83 serves as a setting means in the character writing mode, and sets the output data of the character generator by inputting the number of original sheets. A display section 84 is provided above the numeric keypad 83 to display the set number of copies, etc. However, this display section 84 displays the number of original sheets in the character writing mode. To the left of the numeric keypad 83 and display section 84 are provided cassette setting keys 85A and 85B for setting the paper feed cassette to be used. A status display section 86 that displays the status on the main body is provided to the left of the cassette setting keys 85A and 85B. .

To the left of the status display section 86, there are provided a density adjustment key 87 for adjusting the copy density and an auto-US light key 88 for automatically adjusting the copy density. To the left of the automatic exposure key 8 is a 1x key 89 for setting 1x copying. To the left of the same size key 89, an enlargement key 90 is provided for setting a predetermined enlarged copy. To the left of the enlargement key 9o, reduction keys 91A, 91B, and 91G are provided for setting a predetermined reduction copy.

To the left of the reduction key 91C are provided an enlargement key 92A for setting arbitrary enlarged copying (up to 154% in 1% increments) and a reduction key 92B for setting arbitrary reduced copying (up to 65% in 1% increments). It is being A magnification display section 93 for displaying the set magnification is provided above the enlargement key 92A and reduction key 92B. A character at writing mode setting key 94 for setting a character writing mode is provided to the left of the reduction key 92B. On the left side of the character writing mode setting key 94, two pages of original image are displayed.
A page continuous copying key 95 is provided for forming an image by pressing the copying key 82 once. Page continuous copy key 9
To the left of 5 is an area designation key 96A for designating the positioning device 7C)A.

968.96C and 96D are provided.

Next, the control system of Narcissus 1 in the above-mentioned character writing mode will be explained with reference to FIG.

At the center of the figure is a CPU 100 that controls the entire main body 1. The input section of the CPU 100 includes a character writing modeco setting key 94. Numeric keypad 831 display section 84. Jam switch 148A, other input keys 10 on operation panel SO
2 and a character generator 103 for writing characters KK are connected.

The input parts of drivers 103, 104, and 105 are connected to the output part of the CPU 100. The driver 103 is connected to a solenoid 44 for operating the shutter 41. The driver 104 is connected to the LED array 50 and the character generator 10
Each of the LED chips 60 is turned on at a timing corresponding to the data of No. 2. The driver 105 is a pulse motor 5
3, and controls the amount and direction of rotation of the pulse motor 53 according to signals from the CPU 100. For example, when writing a page as self-written characters KK,
When the jam switch 128A is turned on, replacement of the original GE is detected, and the data contents of the character generator 102 are updated to store the next number.

The operation of the main body 1 in the above-described configuration will be explained with reference to FIG. 15. Here, we will explain how to include continuous pages.

First, the document GE is set on the paper feed tray 143 in the main body 1 which is powered on and is in a copying operation standby state. Next, the copy image status and the like are set using each key on the operation panel SO. First, the character writing mode is set by pressing the character writing mode setting key 94. A is the number of pages to be written. Then, use the numeric keypad 83 to select the original GE.
When the number of sheets of the original document GE is input, the number of sheets of the original document GE is displayed on the display section 84. When the setting of the copy image state is completed in this way, the main body 1 starts the copying operation when the copy key 82 is pressed.

For example, if there are 6 originals GE, when 6 is input using the numeric keypad 83 as described above, data is read from the 6th storage area of the character generator 1020 and supplied to the writing unit KA. The original IGEu is set upside down on the paper feed tray 143 and is fed in order from the last one, so the writing unit KA receives the data from the storage area of this sixth board (in this case, the number "
6”).

In other words, since it is only a continuous page write operation, the write unit KA always uses the CPU 10 in advance as described above.
The pulse motor 33 is driven and positioned with a drive signal of 0. Subsequently, the shutter 41 is lowered, and the LED array 50 lights up in accordance with the data supplied by the character generator 103 to form an image.

When the image forming process for the first document GE is completed, the document at the image reading position C is ejected by the automatic document feeder CA, and the next document is placed at the image f! It is transported onto the IIC at the JI reading position. At this time, the jam switch 148A is turned on to set the output of the data in the fifth storage area of the character generator 103. The data in the 51st storage area of the character generator 102 is the number "5". In this way, each time the jam switch 148A is turned on, the character generator 102 is set and controlled to output the data of the previous storage area.

In this way, in the character writing mode state, page writing images are formed in consecutive numbers until there are no more originals GE on the paper feed tray 143 and no more originals at the image reading position C.

The copy paper P on which the page has been written is ejected to the outside of the main body 1 in a state as shown in FIG. 16, for example. However, this
This is a case where the set number of copies is one.

The apparatus configured as described above is efficient because page writing, which conventionally could not be done on copy paper, is performed in the same manner as the copying operation.

Note that the present invention is not limited to this embodiment.

By changing the contents of the character generator and changing the area, it is possible to write characters as shown in FIG. 17 or 18. Regarding LED arrays, by increasing the number of LED chips, it is possible to create a wider range of more complex characters.
can be written.

The data may also be updated using the jam switch 148.

The present invention is not limited to copying machines, but can be applied to image forming apparatuses using electrophotographic technology to obtain similar effects.

In addition, the automatic document feeder bag [CA's document table 2
It is possible to make the upper part pauseable and update the page number at that time as well. In such a case, the effect of expanding the range of page writing editing is achieved.

Further, an update switch is provided in an openable/closable portion on the document table 2 in the conveyance path for the smallest document (for example, B5 size) that can be conveyed in the automatic ratio Ii feeding device wCA of these devices. For example, it is an optical sensor, a mechanical sensor, etc. This reduces the number of updating means to one.

By providing the update switch at a position closest to the support portion of the opening, effects such as more accurate opening/closing reactions and fewer malfunctions can be achieved.

This is the same whether it is provided on the i-motion document feeder OA side or on the main body Y side.

[Effects of the Invention] As described in detail above, according to the present invention, since all image processing is performed in an analog manner, the amount of information on an image-formed object on which an image is formed can be economically improved.

[Brief explanation of the drawing]

1 to 18 show an embodiment of the present invention, in which FIG. 1 is a sectional view of an automatic document feeder, FIG. 2 is a sectional view of a copying machine, and FIG. 3 is a sectional view of a copying machine. Figure 4 is a perspective view of the drive system of the unit, Figure 4 is a perspective view of the writing unit, Figure 5 is a side view of the shutter drive system, Figure 6 is a sectional view of the writing unit, and Figure 7 is a front view of the LED array. , Figure 8 is a timing chart of the shutter and LED array, Figure 9 is the LED array.
FIG. 10 is a perspective view of the array, image forming element, and shutter; FIG. 10 is a front view of the photosensitive drum for explaining the writing width; FIG.
The figures are for explaining written characters, Figure 12 is a front view of the manuscript table, Figure 13 is a front view of the operation panel, Figure 14 is a block diagram of the II/III system, and Figure 15 is the page number character. The flowchart of the write mode, FIG. 16, is a diagram for explaining the state of image formation on copy paper after copying is completed.
FIGS. 17 and 18 are front views of copy sheets for image formation in other embodiments. KA...unit including 7...photosensitive drum, 3
3...Pulse motor, 41...Shutter, 50...
・LED array, 52...Imaging element, CA...Automatic document feeder, 83...Numeric keypad, 94...Character writing mode setting key 148B...Jam switch,
100...CPU, 102...Character generator Fo Fig. Fig. Fig. 16 Fig. 18

Claims (3)

[Claims] (1) A stacking section that stacks originals, a document table installed in an image reading section that reads the document images downstream from the stacking section, and a document table that reads the document images downstream from the document table. a stacking unit that collects and holds documents; a conveyance unit that transports documents from the stacking unit to the stacking unit; an image carrier that forms an electrostatic latent image from an image read by the image reading unit; an image forming means for forming an image read by the image reading section; a character writing means for forming an image indicating the number of pages in the image formed by the image forming means; and the character writing means. a storage means for storing data of an image formed in the storage means; a setting means for setting the first data to be output from the data stored in the storage means; An image forming apparatus characterized by comprising: an updating unit that sequentially updates a document when it is transported. (2) It has a pressing member that can be opened and closed and is supported at one end that presses the original against the original table, and the updating means sequentially updates the data in the storage means when the transporting means transports the original and when the pressing member opens and closes. The image forming apparatus according to claim 1, wherein the image forming apparatus is updated. (3) An updating means is provided in the transport path when transporting the smallest document that can be transported by the transport means, and in the vicinity of the part where the pressing member is supported, among the parts pressed by the pressing member. The image forming apparatus according to claim 2, characterized in that: