JPH10271254A - Reading and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reader/recorder which is free from the order of fixing and connecting processes of units constituting the device to considerably improve assemblability and maintainability of units. SOLUTION: A reader 300, a recorder 400, a control substrate 500, and a power source 600 are individually constituted in an enclosure where a base part to be the bottom and side walls to be outside surfaces are formed into one body, and a fixing part is provided which individually fixes them to the base part without a special order, and the reader, the recorder, the control substrate, and the power source are moved in directions (D1 to D8) from an aperture face to the bottom and are fixed to the fixing part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique which can be particularly suitably applied to a reading and recording apparatus.

[0002]

2. Description of the Related Art A conventional facsimile apparatus often employs a hierarchical structure as shown in the cross sectional view of FIG. That is,
A control board 1500 is provided on the bottom surface inside a housing 1100 constituting an external surface, a power supply 1600 is provided behind the control board 1500, and a recording sheet table for setting a recording sheet S on the control board 1500 is provided. A printer unit 1400 having a platen roller 1401 for turning forward is mounted on a substrate 15.
A facsimile apparatus which is arranged on the front side of the housing and has a document reading unit 1300 having an operation panel on the front side of the housing, and reads the document by conveying the document G to the front side of the apparatus. Many have been put to practical use. Such a hierarchical structure eliminates useless space.

[0003] In order to disassemble the conventional device for repair or the like after completion, the upper cover 1200 is attached to the housing 1.
After removing the unit from the lower cover 100, each unit inside the housing is removed, but at this time, many screws fixing the unit between the upper and lower covers and each unit are loosened and then removed.

[0004]

However, according to the above-described conventional configuration example, since each unit is formed in a hierarchical manner, the assemblability and maintainability of each unit are significantly deteriorated. was there. In addition, there is a problem that the order for fixing the units to the housing is required to connect the wiring from the board to the connector.

[0005] More specifically, the order in which steps of fixing and connecting to the power supply 1600 and each unit occurs as appropriate by fixing the unit from the substrate 1500 to the housing in order, resulting in an improvement in the assemblability of the unit. There was a problem that the maintainability was significantly deteriorated.

Further, since many screws are used frequently, the assembling process becomes complicated. As a result, the product manufacturing process cannot be simplified, the production quantity cannot be increased, the cost can be reduced, and the repair time can be reduced. Additional problems have been pointed out. That is, the hierarchical structure is certainly effective in eliminating unnecessary space, but is not suitable for cost reduction in consideration of so-called mass production.

On the other hand, in the case where a part of the unit constituting the apparatus is slightly modified and a derivative model using the remaining unit is manufactured, the housing having the conventional configuration must be redesigned. Therefore, there is a problem that a great amount of design time and a manufacturing facility including a mold for manufacturing the housing must be prepared.

Therefore, the present invention has been made in view of the above-mentioned problems, and there is no order in the steps of fixing and connecting the units constituting the apparatus, and the assembling and maintenance of the units are significantly improved. It is an object of the present invention to provide a reading and recording device that can perform the reading and recording.

Another object of the present invention is to realize a cost reduction in consideration of mass production which can shorten a repair time by simplifying an assembling process of product manufacture without using screws.

It is another object of the present invention to provide a reading / recording apparatus capable of withstanding an impact force after completion.

[0011]

Means for Solving the Problems The above-mentioned problems are solved,
According to an embodiment of the present invention, there is provided a reading / recording apparatus in which a reading device, a recording device, a control board, and a power supply are arranged inside a housing in which a base serving as a bottom surface and a side wall serving as an outer surface are integrally formed. Wherein the reading device, the recording device, the control board, and the power source are individually configured, and the reading device, the recording device, the control board, and the power source are individually and in random order. A fixing portion for fixing to the base portion is provided, and each of the reading device, the recording device, the control substrate, and the power supply is moved in a direction from the opening surface surrounded by the side wall toward the bottom surface. It is characterized in that it is fixed to the fixing part.

Preferably, the housing is a first housing in which the base and the lower side wall are integrally formed, and a second housing in which the opening surface is formed and the upper side wall is integrally formed. It is characterized by comprising.

[0013] Preferably, a lid for exchanging a recording medium of the recording apparatus is provided in the second housing.

Further, preferably, the first housing is formed integrally with a guide portion for guiding each of the reading device, the recording device, the control board, and the power supply during the movement.

[0015] Preferably, the fixing portion engages with an engagement hole formed in the reading device and the recording device by elastic deformation to thereby apply an external force including a vertical direction and an oblique direction of the reading and recording device. It is characterized by receiving.

Preferably, the guide portion includes a first guide portion for roughly guiding each of the reading device, the recording device, the control board, and the power supply during the movement, and the elastic deformation of the fixed portion. The reading device and a second guide portion that is positioned so as to receive an external force including the front-rear, left-right, and diagonal directions of the reading-recording device at a reference position engaged with the engaging hole provided in the recording device. It is characterized by being formed.

Also, preferably, a document transport type document transport type reading device, a serial recording type serial recording type recording device, a control board, and the like are provided inside a housing integrally formed with a base serving as a bottom surface and a side wall serving as an outer surface. A recording and reading device provided with a power supply, wherein each of the document transport reading device, the serial recording type recording device, the control board, and the power supply is individually configured, and from an opening surface surrounded by the side wall. In order to move each of the casings in the direction toward the bottom surface and fix the casing to the base, the housing is configured so that the base, the lower side wall, the document transport type reading device, the serial recording type recording device, and the control unit A first housing integrally formed with a fixing portion for fixing the substrate and the power supply to the base so as to be individually and in random order, and the upper side wall integrally covering the opening surface; It is characterized in that it constitutes a second housing which forms.

[0018] Preferably, the serial recording type recording apparatus is disposed on the back side of the first housing, so that serial recording can be performed while conveying a recording sheet from the back side to the front side. And a sub-base unit integrally formed with the first housing so as to straddle the front side, so that the document transport-type reading device can be fixed on the sub-base unit, and the second housing The document is read by the document transport type reading device while the document is transported from the back side to the front side.

Preferably, the sub-base has a shape having a section modulus that can withstand an external force generated at the time of the movement and the fixing of the document transport-type reading device.

Preferably, the second housing is provided with a lid which also serves as a recording medium exchange and a document guide of the serial recording type recording apparatus, and is capable of being opened and closed.

Preferably, the first casing integrally forms a guide portion for guiding each of the original transport type reading device, the serial recording type recording device, the control board, and the power supply during the movement. It is characterized by.

Preferably, the fixing portion engages with an engagement hole provided in the document transport type reading device and the serial recording type recording device by elastic deformation so that a vertical direction of the reading recording device can be improved. And receiving an external force including an oblique direction.

Preferably, the guide section includes a first guide section for roughly guiding each of the original transport type reading apparatus, the serial recording type recording apparatus, the control board, and the power supply during movement, and the fixed section. The reference position of the reading device and the recording device which is engaged with the engagement hole provided in the recording device by the elastic deformation of the portion is positioned so as to receive an external force including the front-rear, left-right, and diagonal directions. And two guide portions.

Preferably, the serial recording type recording apparatus further comprises an ink jet recording head for performing main scanning on the recording sheet and discharging ink to perform recording.

Preferably, the recording head is a recording head that discharges ink by using thermal energy, and is provided with a thermal energy converter for generating thermal energy applied to the ink. I have.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

First, FIG. 1 is an external perspective view when the reading and recording apparatus is configured as a facsimile apparatus. In addition to the configuration as a facsimile apparatus as described above, a document reading apparatus and a recording apparatus which perform an operation of reading an image of a sheet document by connecting to a personal computer and individually or simultaneously perform recording on a recording sheet are simply illustrated. It is designed on the premise that it is also configured as a so-called peripheral device reading and recording device that is united. For this purpose, as will be described later, the components such as a recording device, a reading device, a control circuit board, and a power supply are individually configured so that they can be easily replaced and detached.

In particular, it is assumed that the casing is formed integrally with an injection resin molding die using a predetermined resin material such as high impact polystyrene resin or ABS resin. Since including a set is a considerable initial investment, the final shape is determined after its shape and usage are sufficiently examined. Further, in the manufacturing process of the device, it is possible to minimize the fixing by the frequently used screw screw,
Since it greatly contributes to the reduction of the manufacturing cost, it is considered that no screw is used except for the electric ground in principle.

Now, an outline of the apparatus will be described with reference to FIG.

In FIG. 1, a facsimile apparatus 1 as a reading and recording apparatus includes a scanner apparatus 3 as a document transport type reading apparatus in a housing which forms front, rear, left and right side walls as shown in FIG.
00, a serial recording type recording apparatus as a recording apparatus, a control board, and a power supply are respectively built-in.

The housing includes a lower cover 100 as a lower first housing, an upper cover 200 as an upper second housing, and a later-described third housing for guiding a recording sheet and covering a power supply. And a rear cover.

The upper cover 200 is a document width adjusting plate 3 which can be adjusted in width to guide the document in the width direction, and is moved around a central portion by moving only one side. A document table 2 provided with a document width adjustment plate 3 is rotatably supported by an upper cover 200 as described later, and enables access to a recording head.

A detachable document support table 4 is provided at the rear of the document table 2 so that, for example, when an A4 size document is transported forward toward the scanner section 300, the rear end does not hang down. Like that.

The document conveyed forward with the document surface facing down is conveyed from below the scanner unit 200 to the front of the apparatus 1 and placed on the document support bar 6. The document support bar 6 is movable in the front-rear direction of the apparatus 1 as indicated by an arrow.

On the other hand, a recording sheet conveyed to the recording apparatus is a recording sheet table 401 provided on the back side of the apparatus 1.
After the width direction is regulated by the movement of the width adjustment plate 9 provided above, the sheet is discharged to the recording sheet table 8 below the scanner unit 300 after serial recording in a printer unit described later. When the recording sheet is conveyed so that its longitudinal direction is in the front-rear direction of the apparatus, a rear recording sheet support table 5 and a front recording sheet support bar 7 are provided to prevent the recording sheet from sagging. I have. The support table 5 is built in the recording sheet table 401 and is configured to be brought to the position shown in the drawing by pulling it out as appropriate. On the other hand, the recording sheet support rod 7 on the front side is moved in the front-rear direction similarly to the above-mentioned document support rod. It is provided so that it can be pulled out.

The upper cover 200 has a shape surrounding the scanner unit 300 as shown in the figure, and the lower cover 1 extends along the edge 202 of the upper cover 200.
00, the scanner unit 30 is removed.
0 can be left as it is on the lower cover 100.

The scanner unit 300 is provided with a liquid crystal display unit 11, a dial key 10, and other operation units as shown in the figure. Here, when the apparatus 1 is configured other than the facsimile apparatus, the operation unit is appropriately changed.

Similarly, when a monochrome CCD line image scanner is provided in the scanner unit 300 and a color CCD line image scanner is provided in the scanner unit 300, the scanner unit 300 can be easily attached to and detached from the lower cover 100 as described later. Therefore, the specification of the device can be easily changed.

FIG. 2 is a three-dimensional exploded view of the apparatus 1, in which the upper cover 200 is omitted.

In this figure, the same reference numerals are given to the components already described, and the description is omitted. The lower cover 100 in which a base serving as a bottom surface, a side wall serving as an external surface, and an opening surrounded by the side wall are integrally formed. A scanner unit 300, which is a document-conveying-type reading device that reads a document while transporting a document therein, and a printer 400, a serial-recording-type recording device that performs serial recording while transporting a recording sheet, are connected to these devices. A control board 500 for controlling and a power supply 600;
Ink absorber 1 that absorbs ink that is not required during initial ejection
3, the rear cover 15, the recording sheet table 8, and the speaker 16 can all be fixed to the lower cover 100 without using any tools.

For this reason, a very simple manufacturing line can be realized when assembling is automated. That is, it is possible to perform assembling without a skilled person. Alternatively, assembling by a simple operation of holding each unit by the robot apparatus and moving the unit downward is possible. Therefore, the initial investment including the injection molding die can be sufficiently complemented by simplifying the parts assembling process.

On the other hand, the upper cover 200 can be fixed without using any tools. Also,
In order to remove the upper cover 200 from the lower cover 100, referring to FIG. 1 further, in order to release the engaging portion 185, which is a male and female engaging portion, from the outside, a hole for infiltration of a tool at the cover joining surface is provided. A hole 201 is provided.
The engagement portion 185 is elastically deformed so as to be released by insertion of a tool into the device.

Next, a paper feed unit is connected to the printer unit 400. Further, the scanner unit 300 is coupled to the scanner main unit so that the panel unit opens and closes around a hinge (not shown). The control board 500 controls the printer unit 400 and the scanner unit 300 comprehensively. The power supply unit 600 supplies power to the printer unit 400, the scanner unit 300, and the control board unit 500, respectively.

Each of these units is independently configured as shown in the figure, and is fixed to the lower cover 100. In addition, the lower cover 100 and the upper cover 200
Is designed to be divided into two substantially horizontally (as indicated by height dimensions H1 and H2 in FIG. 6) at a substantially central portion of the entire height of the head. The part is fitted to form an exterior.

Next, FIG. 3 is an external perspective view showing how each unit shown in FIG. 2 is moved when the unit is fixed to the lower cover 100. This movement is performed as described above. Robotic devices can be employed.

In this figure, the control board 500 is indicated by an arrow D1.
And is fixed to the lower cover 100. The scanner unit 300 is moved in the direction of arrow D2 to
00 is fixed. The ink absorber 13 is fixed to the lower cover 100 by moving the scanner unit 300 in the direction of arrow D3. The printer unit 400 is moved in the direction of arrow D4 and fixed to the lower cover 100. Power supply 600
Is moved in the direction of arrow D5 and fixed to the lower cover 100. The rear cover 15 is moved in the direction of arrow D6 and fixed to the lower cover 100. Then, the recording sheet table 8 is moved in the direction of arrow D7 and fixed to the lower cover 100. On the mounting surface 8a on the recording sheet table 8, when recording on a thick recording sheet, a pair of thick recording sheet supports which are rotated in the direction of an arrow to hold each position so as to prevent the recording sheet from hanging down. A plate 12 is provided.

FIG. 4 is an external perspective view showing a state in which the upper cover 200 is fixed after each unit is fixed to the lower cover 100 as described in FIG. In this figure,
The document table 2 opens and closes up and down by press-fitting the left and right protrusions 2a in the direction of arrow D9 into the holes 205 formed in the upper cover 200.

Further, on the inner surface of the side wall serving as the side surface of the upper cover 200, a claw portion 202 partially shown by a broken line
5 is formed at a portion facing the same.

The hole portions 201 are formed below the claw portions 202, respectively, so that a part of the edge portion 203 is cut out. This edge 203 is a lower cover 1 to be described later.
By being sandwiched between the rib of 00 and the inner surface of the wall,
It is configured not to be deformed even when an external force acts. The upper cover 200 configured as described above is moved in the direction of arrow D10 and fixed to the lower cover 100. At this time, the four claw portions 202 are engaged with the engagement portions 185.

That is, in the plan view of the lower cover 100 in FIG. 5 and the cross-sectional view taken along the line AA in FIG. 5, the upper cover 100 is divided into upper and lower portions at almost half the height of the product. , And are fitted up and down at the outer peripheral portion. That is, a thin portion 181a is formed around the upper portion of the outer wall 181 of the lower cover 100, and the lower cover rib 182 is provided to stand upright on the outer wall.
Are provided in large numbers.

On the other hand, since the upper cover 200 is also provided with an edge portion 203 that becomes a thin portion around the outer wall, the edge portion 203 of the upper cover thin portion is composed of the lower cover thin portion 181a and the lower cover rib 182. Into the gap 183, the outer walls of the upper and lower covers are fitted to each other, and the front, rear, left and right positions are determined, thereby securing rigidity.

The height of the thin portion is higher at the edge 203.
It is configured to be larger than the thin portion 181 by a predetermined amount so that the clearance h can be configured. In other words, the slits are formed all around the joint of the upper and lower covers, and the joints of the upper and lower covers are made invisible with these slits.
A design effect that makes the product height appear low is secured. On the other hand, at the four corners of the lower cover, an engaging portion 185 which is a patch claw elastically deforming to the inside of the outer wall is formed, and a hole 185a is formed in the engaging portion. The upper cover has a triangular claw 2 at a position where it fits into the hole 185a.
02 is provided.

Therefore, when the upper cover 200 is moved from the top to the arrow D10 (see FIG. 4) when the upper and lower covers 100 and 200 are aligned, the triangular claw 202 causes the engaging portion 185 of the patch claw to engage 185b ( (Indicated by the two-dot chain line in the figure)
When the hole 185a comes over the claw portion 202, it returns to the original position. As a result, even if the upper cover 200 tries to come off, the claw 202 lifts the engaging portion 185, so that the upper and lower covers can be kept from coming off.

On the other hand, a notch serving as a hole 201 is provided in the thin portion 203 of the upper cover 200. When the upper cover 200 is removed, a tool T is pushed through the notch hole 201 to engage a patch claw. The upper and lower covers 100 and 200 are elastically deformed inwardly of the joint portion 185.
Can be released.

As described above, since the upper and lower covers are fitted around the outer wall and the fixing claws are provided in the vicinity of the outer periphery, the strength of the exterior is increased. Since there is no need for fixing in any case, the workability of attaching and detaching is improved.

Next, as shown in FIG. 5, the lower cover 100 in FIG. 5 is configured to be in each room in order to secure a predetermined strength.
The rear cover 15 is fixed so that the rear cover 15 is accommodated, the outer periphery of the power supply is regulated by the protrusion 189a, and the power is not moved.

The outer shape of the room 187 is determined to accommodate the ink absorber 13 in an immovable state, and the ribs 88 projecting into a part of the absorber 13 to cope with a shape change due to drying. Making it possible. The lower cover 100 is provided with a room 87 surrounding the periphery in substantially the same shape and area as the outer shape of the absorber 13, and further includes a rib 88 perpendicular thereto. The absorber 13
When entering the enclosure of the room 87, the slit cut in advance cuts into the rib 88 to prevent the rib 88 from coming off. The height of the room 87 is set higher than the height of the absorber 13 so that the waste ink permeated into the absorber 13 does not overflow.

Referring further to FIG.
There are provided four engagement portions 104 on the top, and each engages with a claw portion of the scanner portion 300,
In addition to being fixed, a part of the scanner section 300 is positioned on the shape section 103 to receive an external force. Further, guide portions 103 are formed to receive the bottom surface with the studs 102 and to roughly guide the studs 102. These guide portions 103 receive an external force when an impact force is applied.

The control board is formed by the notch 1 formed in the wall 193.
When the board enters into 93a, it is fixed in an upright state in which the connector 555 is located in the notch 192 at the back.

In the printer unit 400, a hole to be engaged by the left and right engaging portions 197 is formed in the main body.
After being roughly guided by the guide guide 195, the main body is fixed in a state of being positioned on the bottom surface 196. This engaging portion 197
A through-hole is formed below the bottom, and a tool can be inserted from the bottom.

Further, since each unit is positioned so as not to interfere in the front-rear and left-right directions, there is no order when the unit is fixed to the lower cover 100, so that the assembling property is good and only the necessary units can be removed. It can be removed, improving maintainability.

The power supply unit 6 is a part of the printer unit 400.
00, or a structure in which a part of the scanner unit 300 presses the upper direction of the control board unit 500, the power supply unit 600, the control board unit 500, and the lower cover 20
Fixing with 0 is simple, and the assembling property is further improved.

FIG. 7 is a plan view of the rear cover 15 and the power supply 600. The engaging claw 15a and the projection 15b are formed integrally with the rear cover. The power supply 600 is connected to the ground wire 6.
The 64 ground tab 661a and the wiring 674 are fixed on the substrate 663. 662 is an AC outlet.

FIG. 8 is a plan view of the control board 500 and the printer 400. The control board unit 500 includes a main board 551
And the sub-board 552 and the board chassis 553 are formed as an integrated unit and fixed to the lower cover 100 by a mounting method described later.
00 and the scanner section B. Therefore, on the main board 51, the control circuit / connector section of the printer section 400 can be provided behind and the control circuit / connector section of the scanner section 300 can be provided before, so that the circuit can be efficiently arranged, the board can be downsized, and noise can be reduced. Also become stronger.

In the printer unit 400, a sheet feeding unit 401 supports a middle plate at a fulcrum (not shown), and the middle plate is pressed by a spring. The base 401 is the printer body 4
00 is fixed by screws or the like. The recording paper S is stacked on the middle plate, the back surface is supported by a paper feed tray provided on a paper feed base so as to be extendable and contracted, and the width direction is set by a side guide movably provided on the middle plate. Be regulated. The paper feed roller feeds out the recording paper one by one and sends it out to the printer unit 400.

The printer main unit 400 is a so-called ink jet recording unit.
0 is a printer chassis which is a frame of
The lower cover 100 is fixed by an attachment method that engages with the lower cover 97. A paper feed roller 412 sends the recording paper S sent from the paper supply unit to a printing unit further downstream by pressing a pinch roller 413 disposed opposite thereto. Reference numeral 414 denotes a platen that supports the back surface of the recording paper in the printing unit. On the front surface of the recording paper, an ink head 417 attached to a carriage 416 supported by a guide shaft 415 and reciprocating.
Thereby, a recorded image is formed.

After that, the recording paper S is discharged from the printer unit 400 by the recording paper discharge roller pair 418, and
The sheet is conveyed and stacked on a recording sheet table 8 provided on the lower cover 100.

Here, the recording paper conveyance and the recording operation of the printer unit 400 are performed by a motor, a sensor, a head drive circuit and the like (not shown), and these controls are controlled by the control board unit 500. The board 421 is a recording relay board that relays signals from these motors, sensors, head drive circuits, and the like and transfers the signals to the control board unit.
The absorber 13 that absorbs and retains waste ink generated during operations such as ink clogging prevention in the printer unit 400 is attached to the lower cover 100 as described above.

Next, referring to FIG. 9 and FIG.
00 will be described.

The scanner unit 300 irradiates the original G with light and converts the reflected light into an electric signal, and transmits this signal to another machine according to the operation mode, or the own printer unit 400.
Is to be transmitted. The document G is stacked on the document table 2.

In the scanner main body 300, reference numeral 334 denotes a frame of the scanner 300, and a scanner base for guiding the lower side of the document G, and is fixed to the lower cover 100 by a mounting method described later. The scanner base 334 has a separation roller 3 for feeding the original.
35, a contact sensor 33 for reading image information of a document
6, a roller 337 and the like which are disposed opposite to and contact with the contact sensor 336 are provided.

The panel portion is rotatably mounted on the scanner base 334 by a fulcrum (not shown), and guides the upper side of the original document by an upper document guide 338, a separation roller 335 opposed to the separation roller 335 and pressed, Panel frame 3 partly attached to upper document guide
40 and the like are provided. The panel frame 340 is provided with an operation key 341, a display unit 342 such as an LCD, a panel substrate 343 on which these are mounted, and the like.

Reference numeral 344 denotes a document discharge roller pair.
The document conveyed by the separation roller 335 and the CS roller 337 is stacked on a document discharge tray.

Here, the document conveying and reading operations of the scanner unit 300 are performed by a motor and a sensor driving circuit (not shown), and the control of these and the display control of the panel unit 3002 are performed by a control board. Controlled by the unit 500.

Next, the arrangement and electrical coupling of the control board unit 500, the power supply unit 600, and these units will be described with reference to FIGS.

The control board section 500 has a main board 551 and a sub-board 552 attached to a board chassis 553 made of metal. The main board 551 includes a modular jack 554, a centro connector 555, a CPU 556,
A ROM 557, a RAM 558, and the like are mounted.

Here, the CPU 55 that frequently replaces components
6, the ROM 557 is located above the substantially center of the main board 551, and is located where the upper cover 200 is removed and exposed. See FIG. Also, the main board 55
1 and the sub-board 552 are connected to the cables 559a and 559b.
And the connector is connected to the main board 551 at a position substantially lower than the center. Here, the sub substrate 5
52 is preferably a so-called NCU which is a collection of line control circuits. In this case, without improvement of the main board 551, the sub-board 551 (NC
It can be easily modified by replacing U). Also, 5
Reference numeral 60 denotes a substrate cover for shielding the sub-substrate 52.
1) Dropping screws or damage with tools.
This prevents the scattered ink from adhering from 00. In particular, when the sub-board 551 is an NCU, an accident prevention effect is high because there is a line high-voltage electric circuit.

If the width of the scanner section 300 is made smaller than that of the printer section 400 and the sub-board 552 is arranged beside the scanner section, the space efficiency is increased and the whole apparatus can be made smaller. Further, the printer unit 40
0, if the recovery unit 22 for performing head cleaning or the like is arranged in the standby position of the ink head 417 in the direction opposite to the control board unit 500 (that is, on the right side of the lower cover 100), the ink splattering during the recovery operation is Regardless of the substrate, a substrate short-circuit accident due to ink wetting can be prevented.

In the power supply section 600, the power supply chassis 661 is made of metal and is integrated with the power supply board 663 on which electric components such as the inlet 662 are mounted. Further, a part 661a of the power supply chassis 661 is screwed to the printer chassis 411 and is grounded. Further, the printer chassis 411 may be connected to the ground wire 664.
And the board chassis 553 is grounded. The power supply unit 600 is disposed behind the printer unit 400 on the lower cover.

Each unit 400, 300, 50
Reference numerals 0 and 600 are incorporated in the positions indicated by the respective lower covers 100. The control board unit 500 is a printer cable 471 for the printer unit 400, a scanner cable 372 for the scanner main unit 300, and a panel cable 300 for the panel unit 300. At 373, the power supply unit 600 is electrically connected to each other by a wiring 674.

As shown in FIG. 10, each cable 471, 3
72, 373 are connected above substantially half of the main board 551, and the upper cover 200 and the lower cover 1 are connected.
00 is almost half the height, so the upper cover 2
00, each unit 400, 300, 50
The connection of 0 is released, and the maintenance work is easy.
Further, each cable is drawn out from the control board side of each unit, so that the cables can be shortened, and there are effects such as cost reduction and resistance to noise.

Here, the power supply cable 374 and a part of the cable of the scanner unit 300 may be routed through the recording relay board. This has the effect of reducing heat dissipation of the substrate 551. At that time, it is desirable to provide a drive driver for the motor on the recording relay board.

Next, a method of fixing the power supply unit 600 and the rear cover 15 serving as a hand guide to the lower cover 100 will be described. The lower cover 100 has a slightly larger area than the outer shape of the power supply unit 600, Regulating ribs 189
a is provided. The ribs 189a are connected to the power supply unit 6
The height is set higher than 00. Therefore, the power supply unit 60
If 0 is dropped into a predetermined space of the lower cover 100, the front, rear, left and right lower positions are determined. On the other hand, the rear cover 15 serving as a hand guide is positioned so as to cover the power supply unit 600.
The positioning boss 190 of the lower cover and the positioning hole of the hand guide are fitted to determine the position, and the triangular claw is fitted to the engaging portion 191 of the patch claw having the same shape as 185, thereby preventing the hook from coming off in the upward direction. At the same time, the power supply unit 600 is regulated in the upward direction. The rear cover, together with the lower cover rib, covers the power supply unit 600 to prevent the ink scattered from the printer unit 400 from adhering.

The rear cover 15 functions as a guide for manually inserting recording paper into the printer main body 400 from below the paper feeding unit.

Next, a method of fixing the control board unit 500 and the lower cover 100 will be described.

The lower cover 100 has a Centro connector 5
A notch 192 that is slightly wider than the shape of 55 is provided, and serves as a guide for dropping the control board unit 500 from above. Further, the positioning boss 194 is mounted on the board chassis 5.
An accurate position is determined by fitting into a positioning hole 53 (not shown). Further, the main board 551 and the sub-board 152 fit into the cutout portions 193a of the rib 193, and regulate the movement of the board. In order to prevent the detachment in the upward direction, a patch claw such as 185 (not shown) may be hooked on the board chassis 553, or the board chassis 553 may be screwed to the printer chassis 411 from the side. You may just hold it down from above.

Next, a method of fixing the printer unit 400 and the lower cover 100 will be described.

The position is determined by fitting the positioning boss 195 provided on the lower cover with the positioning hole 411a of the printer chassis 411. Here, since the tip of the positioning boss 195 has a conical shape, the position is guided only by dropping the printer unit 400 from above. Thereafter, the lower portion is supported by the receiving portion 196, and the upward pressing is performed by the claw portion 197 of the elastically deformed triangular claw.
It is prevented from coming off by being scratched by 11b.

Next, a method of fixing the scanner unit 300 and the lower cover 100 will be described.

Surface 1 of lower cover for receiving scanner section 300
01 is higher than the surface that receives other units,
This is a surface located in front of the printer unit 400 and above the discharged recording paper, and has a cross section that is uneven, and has a large section modulus and high strength. With such a shape,
The rigidity for supporting the printer unit and the scanner unit with the same lower cover can be set.

The positioning boss 10 provided on the lower cover
The position is determined by fitting a positioning hole (not shown) of the scanner base 334 with the positioning hole 2. Here, the positioning boss 102
Since the tip has a conical shape, the position is guided simply by dropping the scanner unit 300 from above. Thereafter, the downward direction is supported by a predetermined receiving portion (not shown) of the surface 101, and the front, rear, left and right positions are slightly away from the outer shape of the scanner base 334, and a plurality of ribs 10 provided on the lower cover 100 are provided.
3 The upward restraint is prevented from coming off by fitting the triangular claw 334a of the scanner chassis 334 to the patch claw 104 of the lower cover as shown in the figure, as described above.

As described above, while each unit is assembled to the lower cover 100, the lower cover 100 is formed with strong ribs and walls for receiving the front, rear, left and right of each unit. In addition, it is possible to form an elastically deformable patch claw shape.

Further, since the base of each unit is the same lower cover 100, the rigidity of the product itself is increased. Furthermore, since each unit can be dropped and assembled from above, the assembly workability is good, and the unit can be removed alone,
Good maintainability.

In the above-described embodiment, the serving section is fixed to the printer main body 400 and then the printer main body 400 is fixed to the lower cover 100. However, the paper feeding section and the printer main body 400 are independent units. Each of them may be fixed to the lower cover 100. When the paper is fixed to the printer main body 400, the reference position of the paper is easily determined, and the recording accuracy is improved. Further, when the printer unit 400 is directly fixed to the lower cover 100, the unit weight of the printer unit 400 can be reduced, and the assembling work is further facilitated.

The document table 2 serving as a slider cover is
Although it is connected to the upper cover 200, it may be connected to any other unit such as the printer unit 400. Upper cover 2
When the upper cover 200 is removed, the slider cover comes off at the same time when the upper cover 200 is removed. The printer unit 400
When attaching the upper cover 200,
Since the slider cover 2 has already been connected to the lower cover 100, the slider cover 2 is attached as a single upper cover, so that the work is light and easy.

The rear cover 15 serving as a hand guide
Since the power supply unit 600 is firmly fixed and shielded because it is attached to the lower cover 100 as an independent component, it may be configured integrally with the lower cover 100, the upper cover 200, or the printer unit 400. In that case, the number of parts can be reduced,
In particular, in the case where the power supply unit D is integrated with the upper cover, maintenance of the power supply unit D can be performed simply by removing the upper cover, thereby facilitating the work.

FIG. 13 is a cross-sectional view of the device 1 after completion. The same reference numerals are given to the components already described, and the description is omitted. The units are arranged without waste as shown in the figure. FIG. 14 is a cross-sectional view of the apparatus 1 showing a state in which the recording head 417 is replaced by opening the document table 2, and is replaced from above the printer 400 as shown.

For this reason, in order to make the recording head 417 of the printer 400 detachable from the upper side, the carriage 4
16 is a recording head attaching / detaching mechanism provided in FIG.
Is provided between the recording operation position (a) and the attachment / detachment position (b), and a storage box 444 provided with a member 422 for storing the recording head 417 obliquely from above. In the recording head 417, a recording head contact portion for energizing the recording head 417 moves the storage box 444 to a recording operation position side (to the recording operation position) against a pressing force of pressing against a carriage contact portion provided on the carriage 416 side. 15A, and a control lever 445 having a built-in compression spring 451 for moving the control lever 445 in a direction indicated by an arrow K in FIG.
The housing box 444 is configured to move in the direction of the arrow L1 against the urging force of the box 444 which is urged to move leftward by the spring 450 by the pressing action of the cam portion 445a engaging with the cam portion 445a.

In FIG. 15, the recording head 417
An adjustment mechanism is provided on the carriage so as to be operable from above in order to adjust the distance H between the recording section of the recording sheet and the recording surface of the recording sheet. A round bar 415 disposed at a lower portion of the main body for reciprocating drive along the longitudinal direction.
A plate member 495 having a sliding surface juxtaposed with the main body and disposed at an upper portion of the main body;
The carriage 416 can be rotated around the round bar 415 by holding the recording head 417 from the front and back sides.
And a holding member 494 for adjusting the distance H between the recording section and the recording surface of the recording sheet, and for holding the adjusted rotational position in a stepwise manner.

For this purpose, the holding member is provided with a projection 494j in FIG.
Of the sliding surfaces 494a, 494 so that the projections fall into the locking grooves 416a-1, 416a-2, 416a-3.
One of b and 494c is configured to slide on the back surface of the plate member 495 so as to be sandwiched together with the pressing member 499.

In the printer constructed as described above, the operation lever 445 is first rotated in the direction of arrow K1 in the operation explanatory views of FIGS.
So that the recording head can be stored. Also,
The holding member 494 is set at a predetermined position from above.

Next, referring to FIG.
Is set in the storage box 444 by falling under its own weight. At this time, the box is moved after moving in the directions of arrows S1 and S2 by colliding with the member 222, so that the box is turned by turning the operation lever 445 downward. When the 444 moves in the lateral direction, the contact 407b can be brought into contact with the contact 407b by moving substantially horizontally. That is, if the member 222 is not provided, the contact point 407b may be damaged, but this is prevented.

FIG. 21 shows a case in which the housing is dedicated to the printer. By allowing the housing to be operated from above and from the front, the degree of freedom in designing the cover 801 is increased as shown in the figure.

The printer section 400 is provided with a means (for example, an electrothermal converter or a laser beam) for generating thermal energy as energy used for discharging ink, particularly in the ink jet recording method. Although the printing apparatus of the type in which the state of the ink is changed by the energy has been described, according to such a method, it is possible to achieve higher density and higher definition of the recording.

The typical structure and principle are described in, for example, US Pat. Nos. 4,723,129 and 4,740.
It is preferable to use the basic principle disclosed in the specification of Japanese Patent No. 796. This method can be applied to both the so-called on-demand type and continuous type. In particular, in the case of the on-demand type, liquid (ink)
By applying at least one drive signal corresponding to the recorded information and providing a rapid temperature rise exceeding the film boiling to an electrothermal transducer arranged corresponding to the sheet or the liquid path in which Since thermal energy is generated in the electrothermal transducer and film boiling occurs on the heat-acting surface of the recording head, bubbles in the liquid (ink) corresponding to this drive signal on a one-to-one basis can be formed. It is valid. By discharging the liquid (ink) through the discharge opening by the growth and contraction of the bubble, at least one droplet is formed. When the drive signal is formed into a pulse shape, the growth and shrinkage of the bubble are performed immediately and appropriately, so that the ejection of the liquid (ink) having particularly excellent responsiveness can be achieved, which is more preferable.

As the pulse-shaped drive signal, those described in US Pat. Nos. 4,463,359 and 4,345,262 are suitable. Further, if the conditions described in US Pat. No. 4,313,124 relating to the temperature rise rate of the heat acting surface are adopted, more excellent recording can be performed.

As the configuration of the recording head, in addition to the combination of a discharge port, a liquid path, and an electrothermal converter (a linear liquid flow path or a right-angled liquid flow path) as disclosed in the above-mentioned respective specifications, A configuration using U.S. Pat. No. 4,558,333 or U.S. Pat. No. 4,459,600, which discloses a configuration in which the heat acting surface is arranged in a bent region, is also included in the present invention. In addition, for multiple electrothermal transducers,
JP-A-59-123670 which discloses a configuration in which a common slot is used as a discharge part of an electrothermal transducer, and JP-A-59-123670 which discloses a configuration in which an opening for absorbing a pressure wave of thermal energy corresponds to a discharge part. A configuration based on 138461 may be adopted.

Further, as a full-line type recording head having a length corresponding to the width of the maximum recording medium that can be recorded by the recording apparatus, the length is determined by a combination of a plurality of recording heads as disclosed in the above specification. This may be either a configuration that satisfies the requirements or a configuration as a single recording head that is integrally formed.

In addition, the print head is exchangeable with a print head of the chip type, which can be electrically connected to the main body of the apparatus and can supply ink from the main body of the apparatus. Alternatively, a cartridge type recording head provided with an ink tank may be used.

It is preferable to add recovery means for the recording head, preliminary auxiliary means, and the like provided as components of the recording apparatus of the present invention since the effects of the present invention can be further stabilized. . If these are specifically mentioned, capping means for the recording head, cleaning means, pressurizing or suction means, preheating means using an electrothermal transducer or another heating element or a combination thereof, and printing Performing a preliminary ejection mode for performing another ejection is also effective for performing stable printing.

Further, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, and may be a single recording head or a combination of a plurality of recording heads. Alternatively, the apparatus may be provided with at least one of full colors by color mixture.

In the embodiments of the present invention described above, the ink is described as a liquid. However, an ink which solidifies at room temperature or lower, or which softens or liquefies at room temperature may be used. In general, in the ink jet system, the temperature of the ink itself is controlled within a range of 30 ° C. or more and 70 ° C. or less to control the temperature so that the viscosity of the ink is in a stable ejection range. It is sufficient if the ink is in a liquid state.

In addition, in order to positively prevent temperature rise due to thermal energy as energy for changing the state of the ink from a solid state to a liquid state, the temperature is positively prevented.
Alternatively, in order to prevent evaporation of the ink, an ink which solidifies in a standing state and liquefies by heating may be used. In any case, the application of heat energy causes the ink to be liquefied by application of the heat energy according to the recording signal and the liquid ink to be ejected, or to start to solidify when reaching the recording medium. The present invention is also applicable to a case where an ink having a property of liquefying for the first time is used. In such a case, as described in JP-A-54-56847 or JP-A-60-71260, the ink is held in a liquid state or a solid state in the concave portion or through hole of the porous sheet. It is good also as a form which opposes an electrothermal transducer. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

In addition to the above, the recording apparatus according to the present invention may be provided not only as an image output terminal of an information processing apparatus such as a computer but also integrally or separately, a copying apparatus combined with a reader or the like, and a transmission / reception apparatus. It may take the form of a facsimile machine having functions.

As described above, each unit is independently constituted individually, so that the assemblability and maintainability of each unit can be improved, the assembly cost can be reduced, the product cost can be reduced, the assembly and repair time can be shortened, and the unit can be reduced. Low-cost mass production, such as increased production volume per hour, is possible.
Also, when making a derivative model that remodels only some units and diverts others, there is no need to rebuild the configuration itself, only the necessary units are remodeled and many are diverted, greatly reducing design time It is possible to develop new products in a short time.

[0116]

As described above, according to the reading / recording apparatus of the present invention, the order in which the units constituting the apparatus are fixed and connected does not occur in order, and the assembling and maintenance of the units can be remarkably improved. A recording device can be provided.

Further, by simplifying the assembling process of the product manufacturing without using the screws, it is possible to reduce the repair time and realize cost reduction in consideration of mass production.

Further, it is possible to provide a reading / recording apparatus capable of withstanding the impact force after completion.

[0119]

[Brief description of the drawings]

FIG. 1 is an external perspective view in which an apparatus of the present invention is configured as a facsimile apparatus.

FIG. 2 is a three-dimensional exploded view of the device 1 of FIG.

FIG. 3 is an exploded perspective view showing an assembled state of the apparatus 1 of FIG. 1;

FIG. 4 is a three-dimensional exploded view showing an assembled state in which the upper cover 200 is fixed to the lower cover 100.

5 is a plan view of the lower cover 100. FIG.

6 is a cross-sectional view taken along the line AA of FIG. 5 after the upper cover is attached.

FIG. 7 is a plan view of a rear cover 15 and a power supply 600.

FIG. 8 is a plan view of a control board 500 and a printer unit 400.

FIG. 9 is a plan view of the scanner unit 300.

FIG. 10 is an external perspective view showing a state in which each unit is fixed to a lower cover 100.

FIG. 11 is a block diagram showing a wiring state of each unit.

FIG. 12 is a front view of a control board.

13 is a cross-sectional view of the device 1. FIG.

FIG. 14 shows a recording head 41 of the printer unit 400 of the apparatus 1.
7 is a cross-sectional view showing a state of replacement of No. 7. FIG.

FIG. 15 is a side view in which main parts of the printer unit 400 are cut away.

FIG. 16A is a plan view showing an operation position of a carriage, and FIG. 16B is a plan view showing a recording head replacement position of the carriage.

FIG. 17 is an external perspective view of a carriage.

FIG. 18 is a plan view of a holding member 494.

FIG. 19 is an external perspective view illustrating an operation for replacing a printhead.

FIG. 20 is an external perspective view illustrating an operation for replacing a printhead.

FIG. 21 is an external perspective view of the printer device.

FIG. 22 is a cross-sectional view of a conventional facsimile machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reading / recording apparatus 2 Document table 8 Recording sheet table 13 Ink absorber 15 Rear cover (3rd housing) 100 Lower cover (1st housing) 111 Opening part 185 Engaging part 104 Engaging part 187 Room 189 Room 197 Engagement Unit 200 Upper cover (second housing) 201 Hole 202 Claw 203 Edge 300 Scanner (document transport type reading device) 400 Printer unit (serial recording type recording device) 415 Guide rod 416 Carriage 417 Recording head 422 Member 444 Storage box 445 Operation lever 494 Support member 495 Plate member 500 Control board 600 Power supply

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[Procedure amendment]

[Submission date] April 17, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG.

FIG. 2

FIG. 3

FIG. 9

FIG.

FIG. 4

FIG. 5

FIG. 6

FIG. 7

FIG. 8

FIG. 10

FIG.

FIG.

FIG. 11

FIG.

FIG. 13

FIG. 14

FIG. 16

FIG.

FIG.

FIG. 21

Continued on the front page (72) Inventor: Shigeyuki Sugiyama 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor: Yoshiaki Suzuki 3-30-2, Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (15)

[Claims] 1. A reading and recording apparatus in which a reading device, a recording device, a control board, and a power supply are disposed inside a housing in which a base serving as a bottom surface and a side wall serving as an outer surface are integrally formed. The recording device, the control board, and the power source are individually configured, and the reading device, the recording device, the control board, and the power source are individually and individually fixed to the base in a random order. And a fixing unit for moving the reading device, the recording device, the control board, and the power supply in a direction from the opening surface surrounded by the side wall toward the bottom surface and fixing the moving device to the fixing unit. A reading and recording device, comprising: 2. The housing comprises: a first housing integrally formed with the base and the lower side wall; and a second housing integrally formed with the upper side wall and covering the opening surface. 2. The method according to claim 1, wherein
3. The reading and recording apparatus according to claim 1. 3. The reading and recording apparatus according to claim 2, wherein a cover for replacing a recording medium of the recording apparatus is provided in the second housing. 4. The apparatus according to claim 1, wherein the first housing integrally forms guides for guiding the reading device, the recording device, the control board, and the power supply during the movement. The reading and recording device according to the above. 5. The fixing portion receives an external force including a vertical direction and an oblique direction of the reading and recording device by engaging the reading device and an engaging hole provided in the recording device by elastic deformation. 5. The reading and recording apparatus according to claim 4, wherein: 6. The guide section includes: a first guide section that roughly guides each of the reading device, the recording apparatus, the control board, and the power supply during the movement; A reading device and a second guide portion which is positioned at a reference position engaged with the engagement hole provided in the recording device so as to receive an external force including front, rear, left and right directions and oblique directions of the reading and recording device. 5. The reading and recording apparatus according to claim 4, wherein: 7. A document transport type document transport type reading device, a serial recording type serial recording type recording device, a control board, a power supply, and the like inside a housing integrally formed with a base serving as a bottom surface and a side wall serving as an outer surface. A recording / reading apparatus, wherein the document transport type reading apparatus, the serial recording type recording apparatus, the control board, and the power supply are individually configured, and the opening is surrounded by the side wall and the bottom is the bottom. In order to move each in the direction toward and fix it to the base, the housing is formed by the base, the lower side wall, the document transport reading device, the serial recording type recording device, and the control board. A first housing integrally formed with a fixing portion for fixing each of the power supplies individually and in random order to the base, and a first housing integrally forming the upper side wall while covering the opening surface. Two cases Characterized in that it consists of a reading and recording apparatus. 8. By arranging the serial recording type recording device on the back side of the first housing, serial recording can be performed while conveying a recording sheet from the back side to the front side, By providing a sub-base unit integrally formed with the first housing so as to straddle the front side, the document transport-type reading device is configured to be fixable on the sub-base unit, 8. The reading and recording apparatus according to claim 7, wherein the reading is performed by the document conveying type reading apparatus while the original is conveyed from a back side to a front side. 9. The reading device according to claim 8, wherein the sub-base portion has a shape having a section modulus that can withstand an external force generated during the movement and the fixing of the document transport type reading device. Recording device. 10. The reading / recording apparatus according to claim 7, wherein a lid, which also serves as a recording medium exchange and a document guide of the serial recording type recording apparatus, is provided on the second housing so as to be freely opened and closed. . 11. The first housing integrally forms a guide portion for guiding each of the original transport type reading device, the serial recording type recording device, the control board, and the power supply during the movement. The reading and recording apparatus according to claim 7, wherein 12. The fixing portion engages with an engagement hole portion provided in the document transport type reading device and the serial recording type recording device by elastic deformation, thereby vertically and obliquely moving the reading recording device. 12. The reading and recording apparatus according to claim 11, wherein the reading and recording apparatus receives an external force including a direction. 13. The guide unit, comprising: a first guide unit that roughly guides each of the original transport type reading device, the serial recording type recording device, the control board, and the power supply during the movement, and the fixing unit. A second position for receiving the external force including the front-rear, left-right, and diagonal directions of the reading / recording device at a reference position engaged with the engaging hole provided in the reading device and the recording device by the elastic deformation of the second; The reading and recording apparatus according to claim 11, wherein the reading and recording apparatus is formed from a guide part. 14. The reading apparatus according to claim 7, wherein the serial recording type recording apparatus includes an ink jet recording head that performs main scanning on the recording sheet and performs recording by discharging ink. Recording device. 15. The recording head according to claim 1, wherein the recording head ejects ink by using thermal energy, and includes a thermal energy converter for generating thermal energy to be applied to the ink. Item 15. The reading and recording device according to Item 14.