JPS61222765A - Image-forming device - Google Patents

Abstract

PURPOSE:To enable a feeding system to be constructed simply, by a construction wherein a member for restricting a recording surface of a recording medium is provided at the surface of a recording means which is opposed to the recording medium, and the medium is brought into contact with the member by the force of an air flow generated by a fan. CONSTITUTION:A continuous form recording paper such as a fanfold paper placed in a paper deck part 310 is fed between a lower feeding roller 320 and a pinch roller 330 to a platen 392 constituting a recording surface forming part 390, and is discharged into a stacker 700 by passing between an upper feeding roller 350 and a pinch roller 360. During this, an image is formed on the paper by a recording head assembly 130 on the platen 392. A surface of the platen 302 is provided with a multiplicity of small holes 393 for attracting the paper thereto by the force of an air flow generated by the fan 390F, and the recording surface of the paper restricted by the platen and a nozzle are opposed to each other, with an appropriate gap therebetween. Accordingly, the feeding system can be simply constructed.

Description

Detailed Description of the Invention [Technical Field] The present invention relates to an image forming apparatus, and particularly relates to a conveyance system for a recording medium in the form of continuous paper such as roll paper or fanfold paper, and a conveyance system for the entire width of the recording medium. The present invention relates to an image forming apparatus equipped with a recording means for forming an image.

[Prior Art] As a conventional image forming apparatus of this type, there is one disclosed by the applicant in Japanese Patent Application No. 59-101508 to No. 59-101512. These connect 9 to each other.
Equipped with a recording means that has a transport system and a liquid jet recording device that can be easily separated, and a recovery means that performs ejection recovery processing of the liquid jet recording device, it facilitates the work of replacing the recording medium and the maintenance work of each part in the separated state, and connects Image forming apparatuses have been proposed in which various parts are properly positioned to form high-quality images.

In such an apparatus, it is strongly desired that the recording surface of the recording medium be formed easily and reliably.

[Objective J] An object of the present invention is to provide a member on the recording means side to regulate the recording surface of the recording medium and maintain an appropriate distance between the recording surface and the liquid ejection opening of the recording means, and to use a fan to control the recording surface of the recording medium. An object of the present invention is to provide an image forming apparatus in which a conveyance system can be easily constructed by forming a recording surface by abutting a recording medium against a member.

〔Example〕

The present invention will be described in detail below with reference to one drawing.

1.1 Appearance Figures 1 and 2 (A) and (B) show an example of the schematic configuration of the image forming apparatus of the present invention. This example shows a host system that generates image information and control signals related to recording. This is an image forming device that is connected to the image forming apparatus.

In these figures, reference numerals, names of parts, mechanical parts, and meanings correspond as follows.

(The following is a margin) 1.2 Interior (1) Inside of the recording system unit No. 314 is a perspective view showing an open paper feed unit 300 to show an example of the internal configuration of the recording system unit 100. The symbols and the functions and meanings of each part name world 1 correspond as follows. In this configuration, the control system including the recording head 110 and cartridge tank 120 may be an inkjet printer disclosed by the applicant in Japanese Patent Application Nos. 58-244131 to 5B-244138, for example.

(Margins below) (2) Inside of the paper feeding unit FIG. 4 is a perspective view showing the paper feeding unit 300 opened to explain the internal configuration of the paper feeding unit 3oo. The meanings correspond as follows.

(Left below) (3) Controller unit interior m 5 Figures (A) to (C) C Controller unit 2
FIG. 2 is an explanatory diagram for explaining an example of the internal configuration of 00.

In this example, the controller unit 200 is arranged below the recording system unit 100. Furthermore, the controller unit 200 is made independent of the recording system unit 100 to facilitate maintenance work, and as described later, even if ink leaks inside the recording system unit 100, the leaked ink can be plugged. A blocking plate for stopping the ink, a member for guiding the ink to the drain tank 800, and the like are provided so that the controller unit 200 is protected from ink leakage.

In FIGS. 5(A) to (C), reference symbols and names of each part,
Function and meaning correspond as follows.

(Margin below) 2.1 Basic operations Next, we will discuss the basic operations of each part of the equipment.

(1) Turn on the power 0N10FF a, ON With the paper feed unit 300 closed (the state shown in Figure 1), turn the power switch 1500 upwards.
The tlSY lamp lights up and each part is checked.

If there is no abnormality, the BUSY lamp will turn off after about 5 to 10 seconds, the ON LINE lamp will turn on, and the image data will be ready for printing.

At this time, if the head unit 110 has a cap of 0
is automatically capped if it is not joined.

If an abnormality is found, an error hood will be displayed on the display panel.

If the paper feed unit 300 is left in place, the head unit 110 will not be capped automatically even if it is not capped, and the cap will be considered to be in place no matter where the cap is placed. UP/DO
Press the WN switch to close the cap.

b, OFF Turn the power switch 1500 downward.

(2) ON LINE mode and OFF LINE mode ON LINE mode is ON when the LINE lamp is lit, OFF LINE mode is ON LIN
This refers to the state in which the E lamp is off.

When in ON LINE mode, 7-ohm feed, initialization, and printing of image data are possible under the control of the host system.

When in OFF LINE mode, press the internal switch to feed one sheet, check print,
Recovery processing is possible.

Normally, 0NL is set by pressing the ON LINE switch.
INE mode and OFF LINE mode can be switched, but in any of the following states, OFF LIN mode
It is assumed that switching from E mode to ON LINE mode is not possible.

-When the BUSY lamp is lit.

- When the paper feed unit is open.

When the fist head is not capped.

・When it is displayed that an error has occurred.

It is assumed that the device is in 0NLINE mode immediately after the power is turned on.

(3) How to set paper Figures 6(A) to 6(C) show examples of mounting operations when fanfold paper is used as the recording medium.

・Make sure the power is turned on.

- Check that the flap 400 is open.

- Open the paper feeding unit 300.

・Paper Ptt on each deck part 310! <.

The orientation is such that the black rectangular mark (TOF mark) is on the back left side of the paper (Figure 6 (A)).

- Open the lower paper feed mechanism (Figure 6 (B)).

・Paper P is moved between lower feed roller 320 and lower pinch roller 33
0 (Fig. 6(C)).

・While opening the L roller 350, pass the paper P along the paper guide 380 to the upper roller, leaving the paper outside the flap (Fig. 6 (D)).
.

6 Close the lower paper feed mechanism making sure that the paper does not slacken.

・Press FF Swee and Chi to send the paper.

If the paper is placed in the wrong direction,
〒Since the OF mark was not found, an error occurred and the program stopped.

- Close the paper feeding unit 300.

- Check that no errors are displayed on the display panel.

(4) Display panel operation FIG. 7 shows an example of the configuration of the display panel 500,
Here, the correspondence between the reference numerals and names of the switches, their functions, and when they are activated, and the correspondence between the reference numerals and names of the indicators and their meanings when they are lit are as follows.

It is an explanatory diagram for explaining the contents. In this example, the first digit 552 of the three digits is used as a status display section to display the status, and the bottom two digits 554 are used as an error display section to display error details.

It is assumed that a display as shown in the figure is made in response to the status and error. Furthermore, decimal points 555, 556 and 557 are lit respectively when the system starts up normally, when there are multiple errors, and when the recording head assembly 130 is not installed.

(5) Switch operation inside the main unit Figure 9 shows an example of the switches and indicators disposed inside the equipment. Here, the reference numbers and names of the switches, their functions and correspondence with when they are enabled, and the display The correspondence between reference symbols and meanings when lit is as follows.

2.2 Replenishment and replacement of consumables Next, the manner of supplying and replacing consumables is as follows.

(1) Removing paper P This can be done by the following steps.

・Make sure the power is on.

- Push the FF switch 520 to feed the paper P until all printed parts of the paper P are fed out of the flap 400.

・Cut paper P along the perforations.

One sheet P is taken out from the stacker 700.

- Confirm that no error is displayed on the display panel 500.

(2) Replenishing ink This can be done by the following procedure (see Figure 3).

- Open the paper feeding unit 300.

・Press the cap UP/DO1lfN switch 11 to lower the cap 140 that protects the head unit 110 (once you press it, the cap will fall to the normal position even if you let go).

- Pull out the cartridge 120.

- Insert a new cartridge. Cartridge 120
8. The arrays of 120G, 12011, and 120Y are black from the left.

They are cyan, magenta, and yellow.

・Press the cap [IP/I] 0% IN switch 11 to raise the cap 140 (once you press it, the cap will rise to the normal position even if you release your hand).

- Close the paper feeding unit 300.

Note that after lifting the cap, ink is sent from the cartridge tank to a fixed tank (not shown) by a pump.

Once this stationary tank is filled, the pump will stop and printing will be possible. As this fixed tank, for example, those disclosed in Japanese Patent Application No. 58-244131 to No. 58-244138 can be used.

(3) Replacing the drain tank 800 FIGS. 10(A) to 10(C) show an example of a procedure for replacing the drain tank 800, and the process can proceed as follows.

a. Loosen the screw 852 (Fig. 1θ (A)).

b. Raise the lever 854 (FIG. 10(A)).

C. Pull up the drain tank 800 (Fig. 111(B)).

d. Pull out the drain tank cap 840 (first O
Figure (C)).

e. Install a new drain tank by reversing the procedure.

f. A new drain tank sealing cap 842 can be attached to the removed drain tank.

In the figure, 820 indicates a waste ink tube.

2.3 Actions to be taken in case of printing defects The causes of printing defects that can be avoided include the following.

■The ink inside the head tip (nozzle) evaporates.

The viscosity has increased.

■Air has entered the nozzle.

■Air has accumulated in the liquid chamber that stores ink inside the head.

These can be removed with @post operations.

In order to perform a recovery operation, a cap 140 must be connected to the head 100, and an internal recovery switch 1 is activated.
This operation is initiated by pressing 2.

While this operation is being performed, the recovery processing lamp 13 is lit.

3.1 Details of Paper Feeding Unit FIG. 11 shows an example of the detailed configuration of the paper feeding unit 300. In FIG. can be assembled into. 30B is recording unit 10
This is the panel that faces this when connected to 0, and 1
Paper deck section 310, lower and upper paper feeding mechanisms, and their opening/closing mechanisms 340, 370.

The platen 392 and the like are exposed through the window 308A, and a surface 306B facing the UNIF 100 serves as a gap reference surface for the head unit 110, which will be described later.

302A and 302B are parts having rotation wheels for rotating the paper feeding unit 300 with respect to the recording system unit 100. 145G is a sensor for detecting the connection with the recording system unit 100, and 1420 is a locking mechanism for ensuring the connection.

Further, 3000 is a motor unit for driving the rollers 320, 350, 325 is a lower feed roller transmission mechanism including a pulley Gl, a bearing, a retainer, etc. for transmitting the rotation of the motor 3000, and 355 is a pulley G2. Bearings, retainers, etc. and other slip plates 352
It is a transmission mechanism of the upper feeding roller including.

(1) Paper deck section 310 FIG. 12 shows an example of the configuration of the paper deck section 310.

Here, 311 is a recording paper stacking section, a side plate 311A serves as a reference surface for initially regulating the conveyance path, and a side plate 311A serves as a reference surface for initially regulating the conveying path, and a side plate 311A serves as a reference surface for regulating the conveying path in the initial stage, and a side plate 311A serves as a reference surface for regulating the conveyance path in the initial stage, and a side plate 311A serves as a reference surface for regulating the conveyance path in the initial stage. Bottom plate 3111 provided with convex portion 311B
In this example, the bottom plate 311G is tilted toward the back side 3110 (the side opposite to the paper loading side) so that the recording paper hangs on the back side 3110. This can prevent the recording paper from falling off the stacking section 311 due to the impact caused by the opening/closing operation of the paper feeding unit 300.

Further, in the figure, reference numeral 315 denotes a press plate for the recording paper, which presses the recording paper toward the side plate 311A by a spring 314 stretched between it and the stacking section 315 and biased in the downward direction in the figure.

Moreover, 318 is a screw for holding the position of the presser plate 315. As a result, the position of the recording paper is regulated at the most upstream side of the conveyance path, and a stable conveyance state can be obtained from then on.

(2) Lower paper feed mechanism and lower roller opening/closing mechanism No. 13
The figure shows an example of the configuration of a lower paper feeding mechanism and a lower roller opening/closing mechanism.

The pinch roller 330 for pressing the recording paper P against the lower paper feed roller 320 is provided with an elastic member 332 near its axial center, and the pinch roller 330 obtains a nip amount with the roller 320 at that part to pinch the recording paper P. Make sure you get the state. 34
1 is an opening/closing lever used to separate the pinch roller 330 from the feed roller 320.

342 is a side plate for supporting the pinch roller 330 at both ends thereof, and the side plate 342 is rotatable around a shaft 343. A pinch roller arm 344 has arm portions 344A and 344B, and is supported by a pin 345 protruding from the side plate 342 between the arm portions 344A and 344B, and is rotatable around the pin 345. Then arm 344
The pinch roller 330 is supported by the arm portion 344A, and a spring 346 is stretched between the other arm portion 344B and the upright portion 342A of the side plate 342.
A pressing force on the feed roller 320 of 0 is obtained. Further, a skew prevention roller 338 is provided on the side plate 342 at a position immediately before the recording paper P is pinched between the lower paper feed roller 320 and the pinch roller 330. This skew prevention roller 3
By bringing 38 into contact with the recording paper P, the paper deck section 3
Supports the weight of recording paper P up to 10, and supports recording paper P
The winding around the roller 320 can have a large corner.

Furthermore, operate the opening/closing lever 341 to move the side plate 342 to the shaft 3.
When rotating around 43, pinch roller 3
30 and the skew prevention roller 338 can both be separated from the feed roller 320.

The opening/closing lever 341 is rotatable around a bottle 342A protruding from the pinch roller side plate 342, and is provided with a button 341A at one end that the operator presses when releasing the pinch roller 330 and the like from the feed roller 320. At the end, there is a claw portion 341 that engages with a lock pin provided on the base 302.
Provide B. In addition, by tensioning a spring 349 between the button 341A of the lever 341 and the side plate 342,
The lever 341 is given the habit of turning counterclockwise in the figure, so that a stable engagement state can be maintained.

In addition, the recording system unit side of the side plate 342 is connected to the cap 140.
In response to the engagement, the side plate 342 rotates clockwise in the figure so that the feed roller 320 and the pinch roller 330 can be engaged with each other. As a result, even if the operator forgets to close the lower paper feed mechanism after loading the recording paper P, the lower paper feed mechanism closes with the movement of the cap 140, which will be described later. This makes it possible to prevent jams, etc.

(3) Recording Surface Forming Section FIG. 14 shows an example of the configuration of the main parts of the recording surface forming section 390 including the platen 392. Here, 393 is the platen 3
92, and the fan 3 is connected through this hole 393.
The recording paper P is attracted to the platen surface by 90F to form a recording surface. 395 is the base 302 and panel 306
394 is a spring mounting portion provided on the platen 392; 386 is a spring for swinging the platen against the base 30;
This is a guide hole for a bottle 309 protruding from 2. Also, 3
97 is a sensor that detects recording paper.

As described later, the recording system unit 100 and paper feeding unit)
300, the bottle provided on the front side of the recording head unit 110 hits the panel 30B having a reference surface, and at this time the assembly 130 swings to keep the nozzles of the head unit 110 parallel to the reference surface. It will be done. At the same time, the platen 392 follows the rocking of the assembly 130 via a projection provided on the assembly side by the spring 395, so that the recording surface of the recording paper P regulated by the platen 382 and the nozzle face each other with an appropriate gap. Become.

(4) Motor unit FIG. 15 shows an example of the configuration of a motor rotating shaft 3000, where 3002 is a motor, and a roller transmission that transmits the rotation of the rotating shaft 3004 to the lower part via a pulley 300B and a bell 3008. Pulley G20 associated with mechanism 325
to communicate. G3 is concentric with pulley G20 and pulley G
A roller transmission mechanism 3 which is a pulley with a diameter smaller than 20 and sends the rotation of this pulley G3 upward via a bell) 3010.
55 pulley G2.

Here, by appropriately selecting the tooth number ratio of each boob, the upper feed roller 350 side has 2 to 3 teeth than the lower feed roller 320.
% higher rotational speed is transmitted.

(5) Upper feeding roller and its transmission mechanism FIG. 18 shows an example of the structure of the upper feeding roller 350 and its transmission mechanism 355.
Bearings 352A and 352B are provided on pulley G2 and rotatably hold pulley G2, respectively.
2 and a slip plate provided on the shaft 351, which slide on the ring 354 fixed to the shaft 351 and the pulley G2, respectively.Thereby, the rotational movement of the motor rotation shaft is caused by the slip plates 352 and 352B. At this time, the recording paper P is pulled up by the upper feed roller 350 under appropriate tension.

(6) Upper pinch roller and paper guide FIG. 17 shows an example of the configuration around the upper pinch roller 360, 382
4, 3822 is a member having portions 382B for holding the pinch roller 38G at both ends thereof, and portions 382A for regulating the displacement of the recording paper P in the width direction when the recording paper P is mounted and when the conveyance is started. One of these members is the spring 3 that the upper roller opening/closing mechanism 370 has.
72 (see FIG. 11), the pinch roller 360 is
The upper paper feeding mechanism is opened in response to the operation of the opening/closing lever 374. These movements are also transmitted to the other member 382 by a connecting bar 384. In this state, the operator can mount the recording paper P.

At this time, the leading edge of one sheet is guided and positioned at an appropriate position on the conveyance path by the guide 380 and the portion 382A.

(7) Paper feeding unit cover FIG. 18 shows an example of the configuration around the paper feeding unit cover 308, where 308A, 308B and 308C are
The output port for the recorded recording paper P (the mounting port for the flap 400), the mounting port for the display panel 50G, and the mounting port for the handle lever 1400, respectively.

410 is a flap lever for rotating the flap 400 around the shaft 412 to open and close the outlet 308A;
420 is an opening/closing control mechanism that regulates opening/closing thereof.

510 is a mounting member for mounting the display panel 500 to the mounting opening 308B.

Reference numeral 710 denotes a stacker rail provided on the lower surface of the force/<-308, which engages with its abutting portion (described later) when the stacker 700 is moved and positioned in the F and B directions. Further, 720 is a member for forming a groove for guiding the movement of the stacker 700, and a mounting portion (described later) of the stacker 700 is received in the formed guide groove.

(8) Flap opening/closing operation Fig. 19 (A) and (B) show the flap opening/closing control mechanism 4.
20, where 422 is the flap 4
It is a flap stay that can rotate around a shaft 402 provided in 00, and has a bent portion 422A and a cam hole 422B. A rotor 424 is rotatable around a shaft 432 provided on a base 430 fixed to the cover 308, and has an ear portion 424A that can be engaged with the bent portion 422A and a cam hole 42.
It has a pin 424B that engages with the cam surface of 2B.

Figures 20 (A), (B), and (C) show a state in which the outlet port 308A is closed, a state in which the flap 400 is rotated to a predetermined position, and a state in which the flap 400 is locked and the outlet port 308A is opened. Indicates the condition.

When the flap 400 is rotated clockwise around the shaft 412 from the state shown in FIG. 4A to the position shown in FIG. The rotor 424 rotates counterclockwise in the figure around the shaft 432, and reaches the state shown in FIG. 19(A) (however, the direction in FIG. 19 is opposite to that in FIG. When the rotor 424 is rotated in the closing direction and reaches the position shown in FIG. Rotation (counterclockwise in the figure) is prevented. That is, at this time, the flap 40
0 is locked, the delivery port 308A is opened, and the recorded recording paper P can be sent out in this state. Even if the operator accidentally pushes the flap 400 or vibrations occur during this delivery, the flap 40G is locked, so the delivery port 308A will not be blocked.

When closing the outlet port 308A, remove the flap 4 from the state shown in FIG. 20(G) by reversing the procedure described above.
00 in the clockwise direction and positioned at the position shown in FIG. 5(B) to release the locked state, the closed state as shown in FIG. 2(A) can be obtained again.

(9) How to install the stacker FIG. 21 is a perspective view of the paper feeding unit 300 seen from below to explain how to install the stacker 700. Here, 722 is a guide groove formed by the member 720;
Reference numeral 750 indicates an attachment part for the stacker 700.

The stacker 700 is sometimes installed in the state shown in the figure.
50 into the groove 722 and then rotated by 30 degrees to prevent the attachment part 750 from falling out of the groove 722 and engage the abutting part of the stacker 7oo with the stacker rail 710.

In this state, the stacker 700 becomes a movable part in directions F and B in the figure, and the stacker 700 can be positioned on the F side and the B side, respectively, when the apparatus is in use and when not in use. Therefore, when not in use, the stacker 70
0 can be stored under the paper feeding unit) 300, so the volume of the device can be reduced.

(lO) Structure of stacker FIG. 22 shows a vertical cross-section of the stacker 700 attached below the paper feeding unit 300 when in use (when projected forward).

As shown in FIG. 22, the stacker 700 includes a support arm 701 rotatably supported on the upper part of the stacker body, and a guide member 702 attached to the support arm 701. The support arm 701 is a paper feeding unit when using the stacker)
300, and set the guide member 702 in a predetermined position. That is, in this set state, the downward extension line 70 of the inclined surface where the paper feeding port is located
3, the guide member 702 is located inside. Further, the guide member 702 is formed in a straight line shape. Further, the horizontal distance d between the vertical front surface of the paper feeding unit/table 300 and the guide member 702 is within the range of lO to 25 l. According to such a configuration, 1, for example, a continuous recording paper such as a recorded fan-hold paper is sent out from the delivery port, first hits the curved part of the guide member 702, and is reliably guided by the guide member 702. The paper falls into the stacker 700 through the gap between the guide member 702 and the front surface of the paper feeding unit 300 and is deposited there. The reason why the distance 111d is numerically limited as described above is that within this range, the recording paper can be guided into the stacker extremely stably, that is, without protruding outside the stacker. Note that the guide member 702 can be rotated downward as shown in FIG. 22 and made unusable.

3.2 Paper feeding unit lock mechanism and handle lever 1
<- (1) Lock mechanism FIGS. 23 and 24 respectively show the paper feeding unit 3.
Lock mechanisms 1420 and 1430 are provided on the upper and lower sides of 00. Lock levers 1422 and 1432 are rotatable around shafts 1421 and 1431, respectively, and have claws 1422A and 1432A that engage with hook members provided on the recording system unit 100 side.

Spring 1423 and 1433 rotate the lock levers 1422 and 1432 in the direction of engagement, respectively. 1424 and 1434 respectively represent the axis 14
21 and the claw 1422A and between the shaft 1431 and the claw 143
2A, and these pins are connected to the handle lever 1400 via wires 1425 and 1435, respectively. That is, handle lever 1
In response to the operation of 400, wires 1425 and 1435
When the lock levers 1422 and 1432 are pulled downward and upward, respectively, the lock levers 1422 and 1432 rotate to release the locked state between the sheet feeding unit 300 and the recording system unit 100.

(2) Handle Lever FIGS. 25 and 28 respectively show an example of the configuration of a handle lever 1400 and its transmission portion.

Here, 1401 is an operation handle, and a transmission shaft 141
It has a pin 1402 that can be connected to 2. 1403 is a member having a mounting portion 1403A to the handle lever mounting hole 308C and a flange portion 1403B, and 1404 is a sealing member provided on the flange portion 1403B. 405 is a spring that gives the member 1403 the ability to move in the direction of the hole 308C and brings the sealing member 1404 into close contact with the periphery of the hole 308C, and 140B is a retaining ring that prevents these partial pins from falling off from 1402. That is, when the handle lever 1400 is attached, the seal member 1404 ensures dustproofness around the attachment hole 308C.

The transmission shaft 1412 is supported by a bearing member 1414 and is rotatable in response to the operation of the handle lever 1400.

1415 is a wire connection member fixed to the transmission shaft 1412, and has pins 1416 and 1417 that connect to wires 1425 and 1435, respectively.

3.3 Controller Unit FIG. 27 shows an example of the configuration of the controller unit 200. In this example, the periphery of the opening 282 for ventilation and wiring in the top plate 280 of the controller unit is raised to form a guide section. 284, recording unit, too
To prevent ink from flowing into the controller unit 200 even if there is ink leakage from the controller unit 200. Further, a hole 26B is provided for draining leaked and accumulated ink, and a tube 82G is connected to the hole 266. The tube 826 is exposed to the outside from the side plate 270, and the tube 826 is exposed to the outside from the side plate 270.
20 so that ink flowing onto the top plate 280 is guided to the drain tank 800. This protects the inside of the controller unit 200 from ink leakage from the recording system unit 100.

In this example, the tube 82θ is connected to the tube 820, but all the ink collected by the cap 140 is guided onto the top plate 260, and the ink is guided from the hole 266 to the drain tank 800 through the tube. By doing so, the configuration of the tube system can be made extremely simple.

3.4 Recovery system (1) Cap opening/closing mechanism FIGS. 28 and 28 show the closed and open states of the cap 140 with respect to the cap cover 150. Here, 141A and 141B indicate the vertical movement of the cap 140. The guide rail 142A is the cap 140
This is a holding member that holds the holder rotatably around a vertical axis and is slidable along the rail 141A. 143B is a member that connects and separates the sliding member provided on the rail 141B. Further, 825 is a waste ink reservoir provided below the cap 140, to which a tube 820 is connected.

According to this configuration, a sufficient work area is ensured during maintenance work of the cap 140, and such work becomes extremely easy. Further, according to this example, since the cap 140 is rotatable about the vertical axis, it is possible to prevent the nozzles of the head from being contaminated by color mixing of ink in the cap portion.

Further, in the figure, 145 is the back surface of the cap, and this back surface 145 is connected to the cam surface 34 of the pinch roller side plate 342 mentioned above.
2B, so that when the units 100 and 300 are connected while the pinch roller 330 is open, the lower paper feeding mechanism is closed as the cap 140 moves downward.

(2) Cap Cover FIGS. 30 and 31 are a perspective view showing an example of the structure of the cap cover 150 and the cap 140, respectively.
FIG. cap cover 15
0 is given a habit of always moving toward the cap side by a spring 151. Further, 152 is a roller that can be secured to a portion 149 on the front surface of the cap 140.

These rollers 152 and the portion 149 are disengaged when the cap 140 is in a position facing the cap cover 150, and the spring 151 moves the cover 150 toward the cap 14G to cover the cap 140. Become. Thereby, the cap 140 can be protected from dryness, dust, and the like.

Also, when moving the cap 140, do not roll! 52 is part 1
48 and the cover 150 retreats against the spring force, the movement of the cap 140 is not obstructed by the cover 150.

(3) Capping of the head unit The capping process for the head unit 110 can be performed by the processing procedure described later with reference to FIG. In order to obtain an appropriate and precise engagement state at the cap position, in this example, a recess 1 is provided on the front surface of the cap as shown in FIG.
46, and on the other hand, as shown in FIGS. 28 and 32, a convex portion 138 that can fit into the concave portion 146 is provided on the head unit 110. Further, as described later, the head assembly 130 is given a tendency to move toward the cap, so when the cap 140 faces the head unit 110 through the process described later, the convex portion 13B fits into the concave portion 146, and in this position. Movement of the cap 140 is prevented, and a state in which the cap 140 is accurately and reliably positioned with respect to the head unit 110 can be obtained, making it possible to perform proper recovery processing.

3.5 Recording head assembly FIG. 32 shows an example of the configuration of the recording head assembly 13G. As shown in FIG. A protrusion 13B that can be fitted into the protrusion 134 and the recess of the cap 140 is provided, and 13
8 is a fan for backing up the suction of the recording paper P onto the platen 392 by the fan 380F.

This head assembly 130 is attached to a movable base shown in Figure 33.

3.6 Recording head assembly in recording unit 1
3G support structure FIG. 33 shows the disassembled state of the support structure of the recording head assembly 130 in the recording system unit 100. 180 is a fixed base, and 170 is a movable base that is movably provided on the fixed base 160. be. A recording head assembly 130 is fixed on a movable table 170.

A motor for driving the movable table 170 (
A drive mechanism 180 including a pulse motor) is fixed. A screw is fixed to the tip of the motor shaft of the drive mechanism 180 via a universal joint, and a guide mechanism 181 that converts motor rotation into linear motion is coupled to this screw. This guide mechanism 181 protrudes upward from an opening 161 formed approximately in the center of the fixed base 160, and a part of the guide mechanism 181 is a movable base! 7
Attach it to the bottom of 0.

Therefore, the drive mechanism 1
80 moves the movable base 170.

Movable base 170 is the paper feeding unit) Recording surface in 300 (
The drive mechanism 180 is positioned and fixed to the fixed base IEiO so as to move back and forth in a direction perpendicular to ) during setting, and the guide mechanism tSt is attached to the movable base 170.

On the upper surface of the fixing base 160, guide rails 182 and 183 are fixed in front and behind the opening 161.

The direction of this rail coincides with the direction of movement of the movable base 170. On the other hand, on the lower surface of the movable table 170, guide rollers 171 and 172 whose axes are perpendicular are attached to the front and rear sides. The front guide roller 171 is located inside the front guide rail 1B2, and the rear guide roller 172 is located inside the rear guide rail 163.
The movable table 170 is regulated by these guide rails and guide rollers.

Move on a predetermined road.

On the upper surface of the fixed base 180, a first receiver fixed to the lower surface thereof has an L side portion of a roller 184 protruding through an opening 165. The axis of this roller 184 coincides with the direction of movement of the movable table 170. On the other hand, when the movable table moves forward (recordable f1
(when moving forward to the position), the first receiver is the roller 1
The second support fixes a roller 173 on the lower surface of the movable table 170 so as to face the roller 64 . The axis of this roller 173 is perpendicular to the axis of the first roller 184. moreover,
The width of the front guide rail 162 is approximately equal to the diameter of the front roller 171 at its front portion, and the width of the rear guide rail 183 is approximately equal to the diameter of the rear roller 171 at its rear portion.
2, with a rear roller at its front.
Therefore, when the movable table moves forward, the front roller 171 is larger than the diameter of the front guide rail 182.
is restrained and fixed by the front part of the rear roller 17
2 is located in front of the rear guide rail 163, the movable base 170 can swing around the front roller 171 in a horizontal plane. At this time, the first receiver on the fixed base side is on the roller 1B4, and the second receiver on the movable base side is on the roller.
173, the rocking motion can be performed more smoothly. Moreover, this swinging makes it extremely easy to position the recording head assembly 130 fixed to the movable table 170 with respect to the paper feeding unit side reference surface using the positioning front part of the recording head assembly 130.
It can be done smoothly.

On the other hand, as shown in FIG. 34, a locking mechanism 183 is fixed to the lower surface of the fixed base 160 for fixing the movable base 170 to the fixed base 180 when the movable base is retreated.

The lock mechanism 183 includes a solenoid 184 and a lock lever 185 that is driven by the solenoid and rotates in a vertical plane. The lock lever 185 has a groove 185A formed above its pivoting tip. Lock lever 18
5 protrudes to the upper surface side of the fixing base 160 through an opening 18B formed in the fixing base 160. There is a locking pin on the bottom side of the movable base 170! Fix 74. This engagement bin 174 is
It is positioned so that when the movable base 170 is retreated, it is directly above the rotating tip of the locking mechanism <-185. Therefore, when the movable base 170 is retreating, the retaining pin on the movable base 170 side is engaged in the groove 185A at the rotation tip of the lock lever 185 by activating the solenoid 184. As a result, the movable table 170 (therefore, the recording head assembly 130) is securely supported by the fixed table 160 (for example, when transporting the apparatus, the
130 to the recording head unit).

When the recording head unit 100 and the paper feeding unit are connected, when the movable base moves forward, the positioning protrusion 132 on the front surface of the recording head assembly 130 moves as shown in FIG. 32 due to the swinging effect of the movable base 170 described above. It reliably contacts the reference surface 306B of the paper feeding unit 300.

Furthermore, in this state, the recording head assembly 1
The platen 392 is pressed by a spring force against another positioning protrusion 134 on the front surface of the printer 30, whereby the recording surface of the recording paper P regulated by the platen 392 is assembled.
130 nozzles.

4. Configuration of Control System FIG. 35 is a block diagram showing the overall electrical configuration of an image forming apparatus to which the present invention is applied. In this figure, He is a host computer that sends image information to be recorded via an optical fiber.

MD is a modulator/demodulator that performs mutual conversion between optical signals and electrical signals.

The CC communication controller has the function of extracting only image data from the data signal obtained from the host computer HC and sending it to the image memories INN and INS.

MP is a main processor including CPU, and performs various controls of the entire device.

MC is a mechanical controller that includes a CPU, and in addition to communicating with the head assembly mechanism described later, it also controls the pulse motor N1 for feeding the fan fault recording paper, the DC motor M2 for moving the cap up and down, and the head assembly in the horizontal direction. Rotation control of pulse motor M3, etc. for moving back and forth is performed.

The recording head unit has four recording heads (Y, M.

C and B), and forms an image on recording paper (fan fault paper) based on image data obtained from the image memories INN and INS.At this time, ink supply and recovery processing to each part of the head are performed. This is done under the control of Mechanism AM for 7-door assembly.

In this embodiment, each of the above blocks is assembled on a separate printed board. The image memory has a storage capacity of 1 megabyte including the mask and slave.

Next, referring to FIG. 36, an outline of the operation of the apparatus performed when the power is turned on will be described.

First, when the power is turned on (step Sl),
Each unit having a CPU (MP, MO shown in Figure 35)
, AM) performs various hardware checks such as a memory check and a boat status check for each unit.

Next, the main control of the entire apparatus is transferred to the main processor MP, which performs various system error checks such as ■ presence or absence of recording paper ■ presence or absence of ink ■ door opening/closing status ■ installation status of the recording head 11G (step S
3).

As a result, if it is determined that there is no error (stay,
step S4), and is set to online mode to enable communication with the host computer He (step S5).

In online mode, image data sent from the host computer is stored in the image memory IN.
When a predetermined amount of data is accumulated in S, the cap is lowered and the head assembly is advanced to the printing position to perform printing (image formation) (step S6). Even during this printing, image data is continuously transferred from the host computer He. These printing operations are performed repeatedly (step S
7).

Further, if the switch is pressed while the online mode is set in step S5, the device is disconnected from the host computer HC and enters the offline mode (step S8).

Next, a test print, which will be described in detail later, is performed (step S9). The test pattern used in this test print is stored in a ROM (not shown). After printing a predetermined amount of test patterns, the test printing is automatically stopped.

Thereafter, to return the device to online mode, the switch can be pressed again (steps S8→S5).

If the occurrence of an error is detected in step S7, the device is set to offline mode (step 5I).
O), since this error is a state such as a jam occurring, the recording paper is out, or there is no ink, the causes of these errors should be removed (step 511), and the switch is pressed to return the device to online mode (step 512). ).

FIG. 37 is a flowchart illustrating the operation of this apparatus at the start of normal printing.

First, when the power is turned on (step 520), the recording head assembly is retracted to the home position (step 521), and then the cap is lowered (step 522).
), then the recording head assembly is advanced by a pulse motor and stopped at a print position corresponding to a predetermined number of pulses (step 523).

Then, head control for printing is performed (step 523).

FIG. 38 is a flowchart showing a control procedure for covering the front surface of the recording head assembly with a cap.

First, the recording head assembly is retreated to the home position. When the assembly reaches this home position, a predetermined output is obtained from the home position sensor (step 530).

Next, +24V is applied to the DC motor for driving the cap to raise the cap (step 531).

When the cap rises and reaches the predetermined cap position, a sensor output is obtained to notify that fact, and at that point the voltage applied to the DC motor is changed to +5V (step 532). Balances the torque of the motor and stops it.

Thereafter, a predetermined number of pulses are supplied to the pulse motor for driving the recording head assembly, thereby moving the assembly to the cap position (step 533).

Since the tip of the recording head assembly has already penetrated into the inside of the cap, the DC motor for driving the cap is disconnected from the power source (step 534).

Thus, the cap lowers under its own weight and the cap action is completed by zero or more engaging the recording head assembly.

Next, communication between the host computer or host system and the present image forming apparatus will be explained.

9. Format and Type of Data (1) Command Data The format of command data exchanged between the host system and this image forming apparatus is as follows.

(Left below) 8 Types of command data sent from the host system to the image forming device is as follows.

MEANING C0DE
0PERAND start print
P print 5peedstop
print E-t
op of forts H-fe
ed F-5
tatus request M
-5end ca+uand again
N-transmissia
n error W
-1 initializes
system I
- The types of command data sent from the image forming apparatus to the host system are as follows.

MEANING
C0DE OPERANDco
mmand/date received
A 5tatu
s information Amatushi■ send command again
N-protocol error
X 5tatus information
ation (2) Image data The format of the image data is as follows.

<FLAQ><CL, AS';><%><DH><ye
low image data (111wor
ds)xDT)kuDHxmagenta image
data (111 words)xDT〉cDHxc
yan image data (111wo
rds)xDT)(DH)(black ima
The meaning of the symbol ge data (111 words)xDTxFc is as follows.

9 Communication Protocol (1) Status Before sending command data and image data to the GGR, the host system must send a status request command and check the status of the CGR. ','W'
) is not required when sending.

The status word consists of 16 bits and has the following meaning.

(The following is a margin) To 1 inch ~ -〇CO Corner of the mouth ■ (3) In the case of image data The protocol from receiving the print start command to receiving image data is as follows.

(Blank below) 9 Communication error When the process below is executed to the end regarding communication between the host system and the image forming apparatus, the host system will detect that there is an error in the l-1 hardware of the communication system. You must make a judgment and take steps to recover.

(Left below) Image forming device Host system [Error detection] NI [Error detection] IN+ [Error detection] IN+ [Initialize port] [
[Initialize the port] [Error detection] When the NI 9 data transmission speed cannot keep up with the print speed, the image data sent from the host system is temporarily stored in a buffer inside the machine and then printed. When the data transmission rate from the host system cannot keep up with the printing speed and this buffer becomes empty, printing is interrupted. Printing resumes once the buffer is filled with image data. However, if the buffer is not filled with image data after three minutes, the head is capped. In this case as well, printing will resume once the buffer is filled with image data.

Next, types of errors that occur in single image forming apparatuses and their countermeasures will be described.

(Margin below) Finally, maintenance of this image forming apparatus will be described.

9 Switches in the card rack A switch used for maintenance is provided on a board in the card rack. The arrangement is as shown in FIG.

9 Check Print (1) Purpose of Use There are four types of test patterns that can be printed using the check print function. One of four patterns can be selected using the test pattern selector switch inside the card rack. These patterns are used for the purpose shown in FIG.

(2) How to use Check that the device is in the following conditions.

・No error has occurred.

・OFF LINE mode.

・The BUSY lamp is not lit.

・The head is capped.

・The paper feed unit is closed.

4 by the test pattern changeover switch inside the card rack.
Select one of the types of patterns.

Press the CHECK switch on the display panel.

On the display panel! 2 will be displayed, B U S,
YLED lights up. Check printing starts after about 15 seconds.

After the check print is completed, the machine is in OFF LINE mode and can continue normal operation if no errors occur.

This is an adjustment that adjusts the ink ejection position of each color to eliminate printing misalignment between each color. This is done by changing the ejection position using the registration adjustment switch and checking the printing misalignment using a test pattern (number 0).

(1) Registration adjustment switch The horizontal registration adjustment switch adjusts the printing position in the direction perpendicular to the paper feeding direction (horizontal direction), and the printing position in the direction parallel to the paper feeding direction (vertical direction). There is a vertical register adjustment switch.

a. Horizontal cash register adjustment switch One of each color is provided.

When the indicated value of the switch is increased, the print position moves to the right (when the paper feeding direction is upward).

When the indicated value of the switch is decreased, the print position moves to the left (when the paper feeding direction is upward).

It can be adjusted in units of 1/8 IIm in the range of 1 7/8 layer to +7/8 layer.

b. Vertical registration adjustment switch The head and second rows of each color are divided into two levels, upper and lower.

Each color has an adjustment switch for the upper head and lower head and do. The switch for the upper head does not affect the print position of the lower head (and vice versa).

There are two switches each for the upper head and the lower head, making up a set. One of the two is for coarse adjustment (
One is for fine adjustment (in 1/2 mm increments), and the other is for fine adjustment (
(adjustment in units of 1/3211W).

When the indicated value of the switch is increased, the print position moves downward (when the paper feeding direction is upward).

When the indicated value of the switch is decreased, the print position moves to the top (when the paper feeding direction is upward).

14 in 1/32 intestinal liter unit - ~ + (3+ 31/32)
It can be adjusted within the range of ■■.

FIG. 41 illustrates the above relationship.

(2) Adjustment procedure 5i2l Align all horizontal registration adjustment switches to the reference position (7).

Bad knee!ヱ Set all vertical registration adjustment switches 2,000 to the reference position (coarse adjustment: 8.
Fine adjustment: Adjust to 0).

5 iyul” Set the test pattern changeover switch to O.

5j21ヱA Press the CHECK switch to perform check printing.

Each j''-tj Look at the broken line pattern portion of the test pattern obtained in step 4.

Measure how far the cyan, magenta, and yellow color lines deviate from the black line in either direction.

52yo 7’6 Cyan, magenta according to the result of step 5.

Operate the horizontal registration adjustment switch for each color of yellow.

For example, if the cyan line is 2 dots (2/8 am) to the left of the black line, turn the cyan horizontal registration adjustment switch to set it to 9.

52U 11 Press the CHECK switch again to perform a check print. 11 If the alignment is insufficient, repeat steps 5 and 6.

If there is no longer a shift between the colors in the horizontal direction, proceed to step 8.

LLL1 2 Look at the portion of the test pattern obtained in step 7 printed by the upper head.

The focus is on the bent portion of the polygonal line pattern section and the entire straight line pattern section.

Measure how far the cyan, magenta, and yellow color lines deviate from the black line in either direction.

According to the result of step 8, operate the vertical registration adjustment switch for the upper head for each color of cyan, magenta, and yellow.

5LLヱ'' Press the check button to perform a check print. If the vR adjustment is insufficient, repeat steps 8 and 9.

If there is no vertical misalignment between each color in the area printed by the upper head, proceed to step 1! Proceed to.

2j shim ≦ system U Look at the portion printed by the lower head of the linear pattern portion of the test pattern obtained in step 10.

Measure how much the printed area by the lower head of each of black, cyan, magenta, and yellow is shifted from the printed area by the upper head in either direction, up or down.

According to the result of step 11, operate the vertical registration adjustment switch for the lower head of each color of black, cyan, magenta, and yellow.

Press the CHECK switch to perform check printing.
If the adjustment is insufficient, repeat steps 11 and 12.

fjt Vop adjustment The head voltage (Vo
p) differs for each recording head unit (even for the same color, it differs depending on the unit).

Therefore, when replacing the recording head unit, it is necessary to adjust Vap according to the following procedure (see Figures 42 and 4).
(See Figure 3).

Insert the terminal of the specified digital tester into the VOP monitor terminal of the replaced recording head unit (left side (black) -
9 right side (red) +).

・While pressing the Vop monitor switch, adjust the volume to the voltage value written on the top of the recording head unit.

5. Modification of recording surface forming means The recording surface positioned relative to the recording surface can also be formed in the following manner.

First, in the example described above, the fan 138 provided in the assembly 130 was operated to blow air from the assembly 130 side to the platen 392 side in order to back up the adsorption of the recording paper P to the platen 392. In a modified example, the fan 13B is operated in the opposite direction so as to attract the recording paper P to the front surface of the assembly 130. In this case, on the front surface of the assembly 130, there are horizontal linear protrusions 1 arranged above and below the recording head.
The height of the No. 15 assembly 130 from the front is made higher than the height of the recording head. Further, the operation of the fan 390F for attracting the recording paper P to the platen 392 is stopped.

By doing so, the recording paper P can be attracted to the front surface of the assembly 130 by the suction action of the fan 138, and the distance between the surface of the recording paper P and the recording head can be maintained appropriately by the linear projections 115. Recording can be performed stably on the recording paper P. Furthermore, while the fan 138 continues to operate, the heater for heating the print head is controlled to keep the temperature inside the print head assembly 130 constant based on the detection result of a temperature sensor provided in the print head assembly 130.

[Effects] As explained above, according to the present invention, a member is provided on the recording means side to regulate the recording surface of the recording medium and maintain an appropriate distance between the recording surface and the liquid ejection opening of the recording means, and the fan By using this method, the recording medium comes into contact with the member to form a recording surface, thereby making it possible to provide an image forming apparatus whose conveyance system can be easily constructed.

[Brief explanation of drawings]

1, 2 (A) and 2 (B) are perspective views showing an example of the schematic structure of the image forming apparatus of the present invention, and FIG. 3 is a paper feeding unit showing an example of the internal structure of the recording system unit 100. Fig. 4 is a perspective view showing the paper feeding unit opened to explain the internal configuration of the paper feeding unit, Figures m5 (A) to (C)
6 is an explanatory diagram for explaining an example of the internal configuration of the controller unit, FIGS. 6(A) to 6(C) are diagrams showing an example of mounting operation when using fanfold paper as a recording medium, and FIG. 7 is a display panel. FIG. 8 is a diagram for explaining the display contents of a 7-segment display; FIG. 9 is a diagram illustrating an example of switches and a display provided inside the device. Figures 10 (A) to (C) are diagrams showing an example of the drain tank replacement procedure, Figure 11 is a diagram showing an example of the detailed configuration of the paper feeding unit, and Figure 12 is an example of the configuration of the paper deck section. FIG. 13 is a diagram showing a configuration example of a lower paper feeding mechanism and a lower roller opening/closing mechanism. FIG. 14 is a diagram showing an example of the configuration of the main parts of the recording surface forming section including the platen, FIG. 15 is a diagram showing an example of the configuration of the motor unit, and FIG. 16 is an example of the upper feed roller and its transmission mechanism. Figure 17 is a diagram showing an example of the configuration around the upper pinch roller; Figure 18 is a diagram showing an example of the configuration around the paper feeding unit cover; Figures 19 (A) and (B) are The figure which shows the example of one structure of a flap opening/closing control mechanism. Figures 20 (A), (B) and (C) are views respectively showing the state in which the outlet is closed, the flap has been rotated to a predetermined position, and the flap is locked and the outlet is open; Fig. 21 is a perspective view of the paper feeding unit seen from below to explain how to attach the stacker, Fig. 22 is a longitudinal cross-sectional view of the stacker attached below the paper feeding unit when in use, Fig. 23, and FIG. 24 is a diagram showing the locking mechanism provided on the upper and lower sides of the paper feeding unit, respectively. FIGS. 25 and 28 are diagrams each showing an example of the configuration of the handle lever and its transmission part. FIG. 27 is a diagram showing the controller. The figure which shows the example of one structure of a unit. FIGS. 28 and 29 are diagrams showing the closed and open states of the cap relative to the cap cover. 30 and 31 are respectively perspective views showing an example of the configuration of a cap cover, FIG. 32 is a view showing an example of the configuration of a recording head assembly, and FIG. 33 is a support structure for the recording head assembly in the recording system unit. FIG. 34 is a diagram showing an example of a coupled state of a fixed base and a movable base. FIG. 35 is a block diagram showing an example of the electrical configuration of the entire image forming apparatus to which the present invention is applied; FIGS. 3B, 37, and 38 are flow charts showing examples of the operation according to the present invention; FIG. 40 is a diagram showing an example of a test pattern, FIG. 41 is a diagram showing a register adjustment mode, FIG. 42 is a diagram showing a structure near the monitor terminal, and FIG. 43 is a diagram showing a head voltage It is a figure showing an example of an adjustment mechanism. 100...Recording system unit, 200...Controller unit, 300...Paper feeding unit (conveying system unit), 400
...Flap, 500...Display panel, 600...Peep window. 700...stacker, 800...drain tank, 900...pocket. 1000...first optical fiber connector, 1100...
・Second optical fiber connector, 1200...Power input connector, 1300...Power output connector, 1400...Handle lever, 1500...Power switch, 110B, 110C:, 110%, ll0Y...Record Head unit, 120B, 1200.12ON, 12
0Y... Cartridge tank. 1i0... Recording head assembly, 140... Cap, 150... Cap cover. 310...Paper deck section, 320...Lower feed roller. 330...Lower pinch roller. 340...Lower roller opening/closing mechanism, 350...Upper feed roller, 380...Upper pinch roller. 370... Upper roller opening/closing mechanism, 380... Paper guide. 390... Recording surface forming section, 210... Power supply device. 220B, 220C, 220%, 220Y-Vap motor terminal, 230...Vop monitor switch. 240...Card rack, 250...Overload lamp. Engraving of the screen (no changes in content) Figure 1 Figure 3 Figure 4 Figure 5 (A) Figure 6 (A)
(C) Fig. 7 Fig. 8 Fig. 9 Fig. 1O (A) Fig. 19 (A) (E) Fig. 20 (A) Fig. 20 (B) Fig. 20 (C) Fig. 21-Fig. Figure 23/432A Figure 38 Figure 39 Figure 42 Figure 43 Supplementary procedure device (method) % formula % 17 Indication of case Patent Application No. 1980-85118 2, Name of invention Image forming device 3, Person making amendment Relationship to the case Patent applicant (100) Canon Co., Ltd. 4, Agent 〒10? 3rd floor, Seiko Building 6, 5-1-31 Akasaka, Minato-ku, Tokyo Telephone: (03) 589-1201 (Representative) (7748) ) Patent Attorney Yoshi Tani - 5. Date of amendment order Voluntary 6. Subject of amendment (2) Attach the power of attorney as shown in the attached document.゛\Hand tr5e Amendment July 18, 1980 Commissioner of the Patent Office Uga゛Mr. Michibe L. Indication of the case Patent Application No. 130-8511G 2, Name of the invention Image forming device 3, Person making the amendment Relationship to the case Patent applicant (100) Canon Co., Ltd. 4, Agent Address: 107 Tokyo 6 Seiko Building 3rd Floor 6, 5-1-31 Akasaka, Minato-ku, Column 7 of “4. Brief explanation of drawings” of the specification subject to amendment, “4. Figure 6 (A)-(C)”
is corrected to [Fig. 6 (A) to (D)]. August 30, 1960 Director General of the Japan Patent Office Michibe Uga 1, Indication of Case Patent Application No. 1980-85116 2, Title of Invention Image Forming Device 3, Person Making Amendment Case Relationship with Patent Applicant (1,00) Canon Co., Ltd. 4, Agent Address: 3rd Floor, Seiko Building 6, 5-1-31 Akasaka, Minato-ku, Tokyo 107 Telephone: (03) 589-1201 (Representative) (7748) ) Patent Attorney Yoshi Tani - 5. Date of amendment order: 6. Column 7 of "3. Detailed Description of the Invention" of the specification to be amended. Contents of the amendment. 1) Line 14 of the table on page 7 of the specification. "150... Cap cover" of the eye "150... Cap cover (No. 28)
(see figure)”. 2) In the second line of the table on page 9, "inside the acid system" is corrected to "inside the storage system." 3) Correct "360...upper pinch roller" in line 8 of the same table on the same page to "360...upper pinch roller (see Figure 17"). 4) Line 2 of page 51 of the same page Correct "when a switch" to "when a specific switch". 5) In the 8th line of the same table, ``(Step Sll),'' is corrected to ``(Step 511), Specific Sll''. 6) Correct rCGRJ on the 3rd and 5th lines of page 60 to read "image forming apparatus." ? ) On page 86, line 3, above r, ``'' is corrected to ``on the occasion of''. 8) In the same page, page 87A, lines 6 to 7, ``by doing so'' is corrected to ``because it was done''.

Claims (1)

[Scope of Claims] A recording means for recording an image on a recording medium, and a fan, a member for regulating the recording surface of the recording medium is provided on a surface of the recording means that faces the recording medium, and a member for regulating the recording surface of the recording medium is provided, An image forming apparatus characterized in that the recording medium is brought into contact with the member by wind force of a fan to form the recording surface.