JPS5878928A - Picture image forming device - Google Patents

Abstract

PURPOSE:To improve the system feed function by providing a separate copy paper feed unit connectably to the main body of a copying machine in a device forming a picture image on a sheet (copy paper) being fed. CONSTITUTION:A sheet feed means is formed by an attachment 13 with a cassette 14 capable of continuously feeding multiple sheets. When multiple sheets of copy paper are to be continuously copied because of an increased amount of copy usage, the attachment 13 is connected to the lower portion of the main body C of a copying machine so that the sheets can be continuously conveyed by the cassette 14. When a copy button provided on the attachment 13 is depressed under this condition, a feed paper roller 23 is rotated by a drive mechanism and the copy paper is fed out of the cassette 14 and is conveyed by a pair of conveying rollers 26, 27 while being guided by feed paper guides 24, 25 and a guide 44 in the main body C, and is adjusted for timing by a pair of regist roller 7, then is fed to a drum 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image forming machine such as a copying machine and a recording machine. More specifically, the sheet fed by the sheet feeding means (transfer material i copy material, Kishu paper, etc., hereinafter referred to as transfer material)
Image forming device Kll that forms an image! do.

Hereinafter, a copying machine will be taken as an example of an IliiitIN forming apparatus.

Conventionally, copying machines have been equipped with manual feeding devices and continuous feeding devices as devices for feeding transfer material, depending on the type of copying. This is a feeding device that manually feeds one sheet at a time, and the transfer material is placed one sheet at a time on a feeding table that swings from the main body of the copying machine. On the other hand, in the continuous feeding machine 1111, a transfer material loading table is provided in the main body of the copying machine, and when in use, the transfer material is directly placed on the transfer material for the number of sheets to be paid and is fed one by one. Alternatively, transfer materials of a predetermined size are stored in advance in the k11lle, and a large amount of transfer material is immediately loaded and stored in the main body of the copying machine using the feeding device to be used, and then fed one by one. There are feeding devices etc. that do this. There is also a 1 liter reel feeding device that stores a long transfer material in a reel shape and feeds out the required amount of transfer material for each tube, cuts it, and then feeds it again.

Conventional copying machines have one of these transfer material feeding systems.
They could be provided singly, or in multiples or in combination. In other words, there are copying machines that can only feed manually as a transfer material feeding method, those that can handle both manual feeding and 1t size cassette feeding, those that can feed 2t size cassettes, or those that can feed manually. Send and 2
There are various types depending on the Knee V Copy 1, such as those that can feed cassettes of different sizes, and those that can feed cassettes of two sizes and decks of one size.

However, in conventional copying machines, the transfer material feeding system can only be used with a device built into the copying machine main body. For this reason, with low-grade machines, even if only d manual feeding is possible*If you are using a 4-machine machine and the number of copy lids increases and feeding can no longer handle the need, you will not be able to use the copying machine. However, even if the continuous feeding device was used as a copying machine, a separate copying machine would be required. On the other hand, high-end copying machines had drawbacks such as the size of the copying machine itself being large due to the provision of a feeding device, and also being heavy and expensive.

So the truth #! Ati is a round type that eliminates the drawbacks of the conventional devices mentioned above, and by providing a separate transfer material feeding system inside the main body so that it can be connected to the main body of the copying machine, it can meet various needs. The feeding function can be system-upped in accordance with the amount of copies to be made, and as a result, a space-saving, lightweight, and low-cost image forming apparatus is provided.

Next, an example of a copying machine to which an embodiment of the present invention is applied will be described.

Fig. 1 shows an external view of the copying machine main body C, and Fig. 2 shows a sectional view of the copying machine main body C. In the figure, reference numeral 1 denotes a seedling mounting table made of a transparent member, which reciprocates in the direction of the arrow. '2 is a short-focus small-diameter imaging element array, which is reflected by the original light source 21 placed on the original horizontal mounting table 1.
slit exposure is performed on the photosensitive tram 6. Also 4
is a charger that uniformly charges K11m on the photosensitive drum 3. The uniformly charged drum 5 is imaged by the element array 2, and a nine-electrode image is formed according to the original image. Next, this electrostatic charge is visualized by the developing devices 5 and K. On the other hand, the transfer material P that is manually fed from above the manual feed table 6a is fed by a feeding roller 6 that rotates in response to a detection signal from a detection means 6b that detects that the transfer material P is manually fed.
Then, the image on the photosensitive drum 6 is rotated at the appropriate timing so that the image on the photosensitive drum 6 comes to the appropriate position on the transfer paper. The toner image of Transfer III
&P is guided to the fixing device 10, where the toner image on the transfer material P is fixed, and then discharged onto the tray 12 by the paper discharge roller 11. Note that 8b is a cleaning means, and 8C is a cooling fan.

The copying machine company in this example has a built-in front-end feeding device that can feed only one sheet of transfer material, but when copying a large number of sheets of transfer material continuously due to an increase in the amount of copies used, etc. By connecting the attachment 16 to the lower part of the main body C of the copying machine, continuous feeding using the cassette 14 is possible. A cross-sectional view of the state □ in which the attachment 15 is attached to the main body 0 is shown in FIG. FIG. 4 describes the structure of the attachment 16 in detail.

In the figure, reference numeral 15 denotes a casing, which is a molded product made of ABS or PC resin, and has a pedestal 161.1 at one end that supports the leg 10a on the paper ejection side of the copying machine main body C, indicated by a point -1.
6 Snow is provided. In front of it is a butterfly for fixing the attachment 16 to the bottom of the copying machine body C) 1
7t and 17mm pass through, and are integrated with the casing 15 by retainers 181 and 18. The guide 19 also serves as a guide for guiding the cassette 14. In front of it is a side plate 2
0*-20x is provided, and multiple '4' is provided on both sides of it.
pedestal 2 for supporting the paper feeding legs 10b of the gA main body;
11 and 223 are arranged. This sweet J! 211.2
Positioning pins 221 and 222 are caulked to the second frame, and the feet 161) K of the photocopier main body C and the paper feeder are fitted into nine positioning holes 10C to connect the main body C1 and the attachment 16.
and positioning. MafC91J 4k 20m-20
3, there are a paper feed roller 23, a paper feed upper guide 24, a paper feed lower guide 25, a transport upper roller 26, and a transport lower roller 27.
is provided. This paper feed roller 26 is installed on the paper feed 4-2 60 and has the shape of a cow knife, and next to it is a paper feed ring 261 which is extremely smaller in diameter than the paper feed roller 26.
is provided on the same shaft 30 at a rotational position. Opposite IIIK of the paper feed roller 26 with respect to the shaft plate 20 is the paper feed gear 2
8 is provided on the paper feed roller shaft 60 with a spring clutch (not shown). Reference numeral 29 denotes a control tube, which together with the spring clutch and solenoid 51 forms a one-turn clutch. Rani 62 is a connector, attaching menu>”)1
3 to the main body C, it is connected to the connector on the main body C side to give an electrical signal to the solenoid 31.

Next, a sectional view of the attachment 16 shown in Fig. *4 and viewed from the arrow mark is shown in Fig. 5.

No. 5 is the structure of the paper feed roller 26 and upper conveyance roller 26 II
II series is shown. In the figure, numerals 36 and 34 are biased clockwise by an aid 38. This idler gear 3
511i is provided on the copying machine main body C side and meshes with the ninth gear 36 and idler gear 64, and the same gear 34 meshes with the upper conveyance roller gear 35 and paper feed gear 28. ζ connecting attachment 15 to copying machine main body CK11, idler gear 63
meshes with the gear 36, and when the gear 36 rotates in the direction of the arrow a, the idler gear 36 rotates in the direction of the arrow A, the idler gear 34 rotates in the direction of the arrow C, and the conveyance Ueda lug gear 65 and paper feed gear 28 rotates. That is, paper feed -
- The roller 25 and the upper transport roller 26 rotate. - The protrusion 29 of the hook tube 29 and the K claw 39 are engaged in front of the bead. The pawl 39 can swing around a pin 39a, and is connected to a solenoid 31 at the other end and biased clockwise by a spring K. When the claw 69 is engaged with 29a, the spring clutch is released and the paper feed roller @30 is not driven, so the paper feed roller 25 is stopped. Then, when the paper feed signal is input to the solenoid 31 via the connector 62, the solenoid 61 pulls the pawl 59, which disengages from the protrusion 29a of the control*29, and the spring of the spring clutch wraps around the paper feed cost. When the shaft 30 is driven and the paper feed field 226 rotates, the solenoid 61 is disconnected and the claw 69 returns to its original position. Rotating feeder I &
When the protrusion 291 engages with the claw 39 again, it stops.

On the other hand, the cassette 14, which is detachably provided on the attachment 16 and is capable of continuously feeding a large number of sheets, is a sixth cassette.
As shown in the figure, it consists of a housing 40, a middle plate 41, a separation claw 42, and a spring 46. freely supported.

The other end of the intermediate plate 41 on the feeding side is biased by a spring 45, and the transfer material Ps is loaded thereon.

- Separation claw 42 is attached to the tip of the topmost transfer material of this transfer material Ps ◎Separation claw 4
2tj It is in @contact with the transfer material due to its own weight, etc., and prevents the transfer materials from being sent in an overlapped manner.

Now, let's talk about the operation of attaching the attachment 16 and the cassette 14 to make a copy. First, attach the foot 10b on the paper feed side of the copying machine body to the attachment 1! Place it on the pedestal 151.15g inside I. At this time, electricity 1ob K
Provided with nine position holes iQc and positioning pins 221/2
211 are fitted, and the attachment 15 is positioned relative to the main body (3. At the same time, the feet 101 on the paper ejection side are also placed on the pedestals 161 and 16s K.
Connect to the connection part 32 of the main body 0.

Next, the main body C and the attachment 13- are identified using the hinges 171 and 17m. Then, insert the force* 14 until it hits the guide 19KB.

On the way, the transfer material Ps comes into contact with the paper feed roller W231, and the paper feed roller 25 is adjusted so as to come into contact with the transfer material P3 with an appropriate paper feeding pressure. When the copy button is pressed, the paper feeding rollers 26 are rotated by the drive mechanism described above, and the transfer material is sent out from the cassette 14 and conveyed by the pair of transport rollers 26 and 27.
The paper feed guides 24 and 25 and the guide 4 inside the main body C
The registrar pair 7 picks up the tie sender and sends it to the dotem 3. After that, a copy can be obtained through the same process as in the case of autumn sending.

In this embodiment, as shown in FIG.
Copy button 45a to *Other operation display means 45
1) is provided, and as shown in Figure 6,
It may also be provided in another transfer material feeding means (7) 13. The copy button and operation/display means are arranged on the 46ti attachment 15. That is, the copy body C
#iSimply insert the transfer material as shown in Figure 2
When the attachment (13) is attached to the main body, the (9) operation means (4) is arranged on it.
6 may be used to set the number of copies. By doing this, the main body of the copying machine can be made compact, and the main body C of the copying machine can be made more compact.

The main body is OK! ! l! The transfer material feeding means used in this invention is not limited to manual feeding. If another transfer material feeding means is attached to the main body, the copy speed may be changed accordingly.
When copying multiple sheets at once, the transfer material can be continuously fed at a faster copying speed than manual feeding, making it possible to obtain a large number of copies more quickly. Note that the functions provided on the attachment are not limited to those shown in Figure #A6 and may include at least one of a copy button, a number setting button, a number display window, and a transfer material replenishment display window. . In addition, as a sheet feeding means that can be freely connected to the main body of the device, there is no need for a butterfly or cassette.
It is possible to use a known feeding means such as manual feeding or manual feeding. It is also possible to use a plurality of cassettes, such as two-stage cassettes.

As described above, the present invention provides an image forming apparatus having a transfer material feeding means, in which the feeding means built in the body of the unit and the transfer material feeding means specified in company regulations are connected to the main body. - of the imaging device by enabling

[Brief explanation of drawings]

Figure 1 is a perspective view of a copying machine to which an embodiment of the present invention is applied;
Figure 2 is a sectional view of the copying machine, Figure 6 is a sectional view of the copying machine of type 1 with other attachments installed, Figure 4 is a perspective view of the line attachment, Figure 5 is a sectional view of the drive system, # Figure I6 is a perspective view of a copying machine with other attachments.・Attachment 14・・Fist・-Cassette 15・＠φ-e body 23m・・・Paper feed cylinder 23・・・Paper feed reeler 24・・・・Paper feed upper guide 25・・・・・・Feed Paper lower guide 26...Top conveyance roller 27'...
Lower conveyance roller 28000.・Paper feed gear 29 @@@
＠＠Control tube 6 control・e・Paper feed leaf shaft 31------
Solenoid 065・54...■・Idler gear 65...Transportation l-lag gear 36...Gear 39 s'aea・Claw Applicant: Canon Co., Ltd.

Claims (1)

[Claims] (1) K on the sheet fed by the sheet feeding one hand RK
An image forming apparatus characterized in that, at -1, the sheet feeding means can be freely connected to an image forming body KII for forming an image forming apparatus KII. Q) The image described in the 411 permission request range No. 1 summit where the sheet feeding means that can be freely connected to the device main body is an attachment that has a force of 7 feet that can continuously feed a large number of sheets. Forming device. (3) The e-attachment according to claim (2), wherein the e-attachment has at least one of a copy methane/sheet count setting l button e sheet number display lever and a transfer material supplementary lII display lug. Ichiyugata power device.