JPH01193758A - Copying device - Google Patents

Abstract

PURPOSE:To avoid the waste of copying paper, and also, to reduce trouble for a jamming processing by discharging all copying paper in a copying device to a punch processing part or a file processing part, when a document jamming is detected in a punch processing or file processing mode, and thereafter, stopping the copying operation. CONSTITUTION:When the punch processing mode or the file processing mode is selected and a document jamming is generated in the inside of an automatic document feeding device 3, all copying paper existing in the inside of a copying device body 1 is discharged to a processing unit 55 without stopping instantly the operation of the copying device body 1, and fed to the intermediate stacker 53 of a processor 4. Accordingly, a punch processing or a file processing can be executed to match the copying paper which is copied after a jamming processing and contained in the intermediate stacker 53. In such a way, the waste of the copying paper is avoided, and trouble for the jamming processing can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a copying bag that automatically feeds original documents and punches or binds a desired number of copies.

(Background of the Invention) Recently, in addition to copying machines, various recording devices such as printers and facsimile machines have been widely used in various fields, and there is a trend toward faster speeds and multi-aperture copying machines. Devices have been proposed that use a copying machine to create a large number of copies, sort them, automatically punch them, and fold them (for example, Japanese Patent Laid-Open No. 61-94180, Japanese Patent Laid-open No. 61-941- No. 84662, Journal of Electrophotographic Society Vol. 24, No. 3 (1985), pp. 188 to 194).
Is it possible to use a circulating automatic document feeder as disclosed in No. 2-12201 or a paper processing device as proposed in the same application in combination with a copying machine, in order to increase the copying speed? It is preferable to start the next copying cycle before the first copying process is completely completed.

Conventionally, in this type of copying device, if a paper jam (so-called document jam) occurs during automatic document feeding, the copying operation, punching process, or binding process is stopped in addition to the document feeding operation, and the jammed document is removed. Of course, copy paper that is in the middle of copying, punching, and binding processing is also removed, and some of the copy paper in the copying machine can be used as is for subsequent processing, and jam removal is also required. is also troublesome.

(Objects and Structure of the Invention) The present invention has been made in view of the above points, and aims to eliminate the waste of copy paper and reduce the trouble of handling paper jams. Alternatively, when a document jam is detected in the binding processing mode, the copying operation is stopped after all the copy sheets in the copying device are discharged to the punch processing section or the binding processing section.

(Example) The present invention will be explained below based on the drawings.

In an embodiment illustrated below as an example of a copying apparatus according to the present invention, as shown in FIG. Automatic document feeding device (hereinafter referred to as RD) with reversing machine for feeding
This is a copying machine that is used by combining and integrating a copy paper processing device 4 that binds and punches the copy paper after copying has been completed, and a paper feed unit 2. is the position δ of the broken line A, and the RDH device 3 is the position δ of the broken line B.
and the copy paper processing wave δ4 are coupled to each other at the position δ of the broken line C. These four components that make up the copying device l.

2.3.4 each has a movable part, and each movable part is configured to be driven by an independent drive source for each constituent part.

Each component of the copying apparatus will be explained using FIGS. 2 and 3.

(1) Copying device 6 main body 1 The copying device of this embodiment has a machine fl that selectively copies on one side or both sides of copy paper, and for this purpose, in addition to the normal electrophotographic process, copy paper The apparatus includes a reversing mechanism for reversing the copy sheet, an intermediate stacker for temporarily placing the reversed copy sheet on standby, and a paper feeding mechanism for feeding the reversed copy sheet.

As a mechanism for realizing a normal electrophotographic process, an exposure lamp 11 and a mirror 12a, which are arranged under a glass document table lO for originals aa provided on the upper surface of the main body l,
12b, 12c and a lens system 13, a charging electrode 15 sequentially arranged around the photoreceptor tram 14 rotating in the direction of the arrow, a magnetic brush type developing device 16, a transfer electrode 17a, and a static elimination electrode. 17b, a cleaning device δ18, a conveyor belt 19 that conveys the copy paper after transfer, and a fixing unit 20.
1b and registration rollers 22 are arranged. These components for the electrophotographic process are well known and will not be described further.

On the downstream side of the fixing unit 20, there is provided a reversing mechanism 23 for reversing the single-sided recorded copy paper that has been fixed by the fixing unit 20 for later copying on the reverse side. This is done by switching the position of the rotatable claw 23a.

Reference numeral 23b is a drive unit for conveying the thus reversed copy sheet in the direction of the next intermediate stacker 24.

The intermediate stacker 24 is disposed below the electrophotographic processing mechanism, and is a conveyor belt driven by a conveyor roller 24a that conveys the single-sided copy paper that has been reversed and conveyed by the reversing mechanism 23 and then reverses it again. 24b, a tray 24c that temporarily holds the reversed copy paper, and a transport roller 24d that transports the copy paper held on the tray 24c.
It is composed of.

On the other hand, the paper feed roller 31 shown on the side closer to the paper feed unit 2 of the apparatus main body l is provided in a part of the paper feed unit 2, and when the paper feed unit 2 is combined with the copying apparatus main body l It is designed to fit inside the main body l.

Note that 25 is a toner supply bag that supplies toner to the developing device 15.

An operation panel 26 and a display section 27 are provided on the upper surface of the apparatus main body of this embodiment. In addition to the copy button that you press to start copying, the operation panel 26 also has a stop/clear button that you press to change the set number of copies or stop a continuous copying operation midway through, and a button that changes the copy magnification to 1x. , magnification selection button to switch to enlargement, reduction, etc., density selection button to change the copy density, paper size selection button to select the copy paper size, numeric keypad to set the number of copies, another button during continuous copying. An interrupt button that you press when you want to copy a document, a punch button that you press when you want to punch holes in a copy, a binding button that you press when you want to bind a copy with a binding, and a binding button that you press when you want to create a binding margin on copy paper. There are also buttons to specify the binding margin to the right or left. In addition, the display section 27
In addition to the set number of copies, the selected paper size,
Displays information such as density, magnification, various warnings (paper jam, toner replenishment, number of sheets exceeded, etc.), single-sided or double-sided copying from a single-sided original, single-sided or double-sided copying from a double-sided original, and other messages you want to notify the user.

Here, the operation of the reversing mechanism during double-sided copying will be explained.

Exposure is performed while the original is fed at a constant speed on the glass original platen 10 by the RDH device 3, and the visible image transferred to the copy paper by a normal electrophotographic process is transferred to the fixing unit 2.
At the time of double-sided copying, the claw 23 of the reversing mechanism 23 is fixed at 0.
Since a is switched counterclockwise, the fixed copy sheet is not ejected but is sent toward the intermediate stacker 24 by the drive section 23b. That is, a copy sheet having a copy image on one side is conveyed by the conveyor belt 24b, reversed, and enters the tray 24c. At this time, the fixed copy image will be on the top surface of the copy paper.

The single-sided copy paper stored in the tray 24c is conveyed again toward the transfer position by the conveyance roller 24d, and waits at the registration roller 22. Thereafter, the copy paper is fed out in synchronization with the operation of the electrophotographic process, and this time the image is transferred onto the uncopied side of the copy paper. The copy paper bearing the newly copied image is fixed by the fixing unit 20, and this time, since the claw 23a of the reversing mechanism 23 is rotated clockwise, the paper is ejected.

(2) Paper feeding unit 2 The copying device of this embodiment is exemplified as a large-sized copying device that can make many copies at once, so it has large trays 70, 80° 90 that can store a large amount of copy paper. A paper feed unit using a paper feed unit is used.

As shown in FIG. 1, each tray 70, 80, 90 is of a pull-out type, and these trays can store copy sheets of the same size or different sizes.

Near the upper paper feed port of each tray, a paper feed roller 28a,
Copy sheets 29a and 30a are provided, and the copy paper sent out from either tray by this paper feeding roller is fed by feeding rollers 28b, 29b, and 30b, and then the receiving roller 31 is connected to a splicing device a. The paper is conveyed by paper feed rollers 21a and 21b provided in the main body l, and then fed to the registration rollers 22.

(3) RDH device 3 The RDH device δ3 is removably installed on the glass document table lO provided on the top surface of the main body l of the copying machine, and as shown in detail in FIG. Turn the multiple sheets of original G that you want to copy face up, and place the first page, second page, etc. from the top.
They are placed one on top of the other in the order of... ! ! The document ta has been placed on the document placement plate 35.
Detected by sensor R3t.

When the copy button provided on the operation panel 26 of the copying apparatus main body L is pressed, the rear end regulating plate 36 of the RDH device 3 moves forward, pushing out the entire document G in the direction (to the right in the figure) and pushing it forward. Gate 37 on the passage rises. When the document G passes through the gate 37 and advances a little, the document leading edge detection sensor R3 detects the leading edge of the document, and the gate 37 lowers and the trailing edge regulating plate 36 temporarily stops.

At this point, the operation of counting the number of original sheets begins.

The 1st IX document (the document placed below I#) is fed, and when its leading edge is detected by the document passage detection sensor R33, it is temporarily stopped. The document is restarted by a command from the apparatus main body 1, and when the trailing edge is detected by the registration sensor R34, the number of documents is counted by one. After the second document, the documents are fed without stopping and counted up by the signal of the registration sensor R3.The trailing edge regulating plate 36 detects the leading edge of the first document or the document leading edge detection sensor R3. Retreat when hit.

After counting the number of originals, feeding of the originals for exposure starts. The half-moon-shaped feed roller 38 rotates, and the double-feed prevention roller 39 rotates to remove the lowest document or one.
Only one sheet will be sent out. The ejected original moves forward along the guide plate 40 and stops once the leading edge is detected by the original passage detection sensor R53.

Thereafter, when a start signal is output from the copying apparatus main body l at a predetermined timing, the copying machine restarts, is taken over by the conveyor belt 42, and moves at a predetermined speed over the glass document table 10 of the copying apparatus main body l. An optical system consisting of a lamp 11 for irradiating the original, reflecting mirrors 12b, 12c, etc. is provided below the glass original table 10. The original is exposed to light by this optical system while moving, and an optical image is formed on the photoreceptor tram 14. (This is called synchronous exposure). When a document trailing edge detection signal from the sensor R3 is sent to the main body 1 of the copying apparatus, feeding of copy paper from the paper feeding unit 2 is started. When the single-sided original copy mode is selected, the exposed original is transferred to another conveyor belt 43 and the original J&
When the document is discharged onto the top document of the set of documents G placed a on the placing plate 35 and the document discharge sensor R3% detects this, the document feed motor is stopped.

On the other hand, when the double-sided original copy mode is selected, when the exposure of one side of the original is completed, the conveyor belt 42 is driven in the opposite direction, and the original is guided to the zero reversing section where it is guided to the guide 44 of the reversing section. When the trailing edge of the original document is detected by the trailing edge detection sensor R3, the drive motor of the conveyor belt 42 is stopped, and when the leading edge of the document is detected by the document passing detection sensor R3, the feeding of the document is temporarily stopped. At the same time, the conveyor belt 42 is again driven in the forward direction. Thereafter, the document is restarted by a restart signal from the apparatus main body l. Since the document has been reversed in the reversing section, it is now moved toward the document table IO with the surface opposite to the surface that has already been exposed, so that that surface is exposed.

The feeding of the second original starts when the first original is detected by the registration sensor R3.

In the same manner, when the exposure by the optical system of the copying device is completed for all originals, such as the third, fourth, etc., the leading edge detection sensor R3 confirms whether the number of originals is 0,
In this way, the feeding of the original for one portion of the copy is completed.

If a plurality of copies (for example, five copies) of the same copy are to be made, the document is automatically fed again in sequence from the last page and exposed sequentially up to the first page, and this document feeding operation is repeated for the required number of copies.

In addition to the automatic document feeding described above, the RDH unit N3 can also feed documents manually.

In this case, when the manual feed cover 45 is reversed and opened to the position shown by the chain line with point A as the fulcrum, the cover reversal detection sensor R5 detects this and the double feed prevention roller 39 is unlocked. , this manual feed cover 45
When the user manually inserts the document along the path, the document is automatically fed when the leading edge of the document is detected by the document leading edge detection sensor R3. The subsequent movement of the document may be the same as in the case of automatic feeding described above, or it may be stopped on a glass document table and exposed by moving the optical system. The exposed document is discharged onto a document discharge tray 46.

In this embodiment, the operation panel 26 of the copying apparatus main body l
By selecting the copy magnification in , you can copy at a predetermined magnification such as enlargement or reduction.

When a copying magnification is selected using the magnification selection button, the document conveyance belt 42 of the RDH device 3 moves at a predetermined speed according to the selected magnification, so that the rotation speed of the photoconductor drum 15 of the copying device main body l If they are kept constant, enlargement or reduction will be performed depending on the relative speed of the two.

In general, to perform magnification changes such as enlargement and reduction, it is necessary to change the speed of the photoreceptor drum, and if this is done, it is also necessary to change the electrophotographic processes such as charging, development, and transfer, and the conveyance speed of the copy paper. Not only is it difficult to make small speed changes or large speed changes, but the power changes in the drive system also become large, making control difficult. However,
In this embodiment, the magnification can be changed simply by changing the speed of the conveyor belt 42 of the RD)I device 3, which simplifies control.

(4) Processing device 4 The processing device 4 is a device that punches or binds copy sheets with copies made on one or both sides discharged from the copying machine main body l.As shown in FIG. l
The conveyor roller 51 outputs the copied material as it is to the shift tray unit 50 without punching or binding the copied material which has been copied and discharged from the interstitial stirrup, and the path switching gate 52 is switched for punching or binding the copied material. a conveyance roller 54 that conveys the copy to the stacker unit 53;
, a processing unit 55 for punching and perforating copies equivalent to one copy stored in the stacker unit 53 and binding them together, and a final storage tray 56 for storing the punched, stapled, etc. copies. Conveyance roller 57 conveys the
．． 58. Among the above components,
The conveyance roller 51, the stacker unit 53, the conveyance roller 54, the processing unit 55, the storage tray 56, and the conveyance rollers 57 and 58 are configured as independent units for assembly and maintenance reasons, and each unit is detachable. It has become. For example, the processing unit 55 includes one punch machine and two staplers placed on both sides of the punch machine (what is called a stapler).
This processing unit 55 can be independently pulled out to the front of the apparatus (perpendicularly to the front in FIG. 1). In addition to the above-mentioned reasons, this makes it easier to dispose of punch residue from the punching process by the punch machine, load or replenish staples in the binding machine (so-called staples), or remove jammed staples. It's for a reason.

The detailed structure and operation of this processing device 4 are disclosed in Japanese Patent Application No. 12201/1983 filed by the same applicant as the present application, so please refer to it if necessary.

The shift tray unit 50 includes a lifting mechanism 50b that lowers a tray 50a from which copy sheets are discharged one by one;
Move the tray to the front or back (second
A shift tray mode 50c is configured to alternately shift a predetermined distance by a predetermined distance in a direction (perpendicular to the plane of the drawing), and the shift tray mode can be selected using the operation panel 26 of the main body l of the copying apparatus.

FIG. 4 shows a control circuit of the copying apparatus of this embodiment.

The copying device includes a copying device main body L, a paper feed unit 2, and a copying device body L.
The DH device 3 and the processing device 4 each have separate control circuits.

The control circuit of the copying apparatus main body l includes sensors 101 including microswitches and optical sensors disposed along the conveyance path of the copy paper for detecting the leading edge, trailing edge, or passage of the copy paper, and the control circuit of the apparatus main body l. Switches 102 that are turned on and off by operating buttons provided on the operation panel 26 of the CPU 10 and signals from sensors 101
a sensor input circuit 103 that converts it into a form that can be processed with 0;
It consists of a drive circuit 105 that drives motors 104 for rotating the photosensitive drum 14, the magnetic sleeve of the developing device, various rollers, and the like.

The paper feed unit 2 includes paper feed rollers 28a for feeding copy sheets from the trays 70, 80, and 90, respectively.

29a, :loa and feeding rollers 28b, 29b, 30b, and 31 for conveying the sent out copy paper. Rotation and stopping are controlled.

The control circuit of the RDH device 3 includes a CPU 300, the above-mentioned sensors R3+, R32, ="R3t", and a sensor input circuit 301.

The control circuit of the processing bag N4 includes sensors 401 consisting of microswitches, optical sensors, or sensors arranged along the conveyance path of the copy paper, or sensors for detecting the movement of a punching machine or a binding machine, and these sensors. The sensor input circuit 402 converts signals from the group 401 into a form that can be processed by the CPU 400, and the drive circuit 403 controls the motor group 404 based on commands from the CPU 400.

The copying operation is controlled by mutually exchanging signals between the copying apparatus main body 1, the paper feed unit 2, the RDH device 3, and the processing device 4.

Here, a copying operation using the copying apparatus according to this embodiment will be explained.

The originals to be copied are placed on the original plate 35 of the RDH device 3 in the order of page 1, page 2, etc. from the top, with the image facing upward.

Next, on the operation panel 26 of the copying machine main body l, select the number of copies 1.
After setting the magnification, copy paper size, and C degree, and selecting punching or binding processing, one-sided copying or double-sided copying, etc., press the copy button.

RD) (Device 3 first counts and stores the number of originals,
After that, the pages are fed in order starting from the last page.

The copying machine of this embodiment employs a synchronized exposure method in which a series of exposures are performed by moving a photoreceptor drum and the like while moving the document one by one. An image is formed on the body drum 14, transferred to copy paper fed from the paper feed unit 2, and sequentially sent to the post-processing device 4 where it is fixed.
At this time, in the case of single-sided copying, the copy sheet on which one side has been copied is reversed by a reversing mechanism 23 in the main body l of the copying apparatus and temporarily stored in an intermediate stacker 24. Thereafter, the copy paper is sent out in synchronization with the timing of document feeding by the RDH device 3, and an image of another document is copied on the opposite side of the copy sheet, and the copy paper is sent to the processing device 4. - In the processing device 4, when a portion of the copy paper is collected, it is punched or stapled according to the initial instructions, and then discharged to the storage tray 56. The same operation is repeated for the set number of copies to complete the series of copies.

By the way, in this embodiment, if a binding margin is required for the copied copy paper, the binding margin can be added to the desired side edge of the copy by pressing the binding margin button on the operation panel and specifying right or left binding. I can make it. This is done by changing the timing of the copy paper fed from the paper feed unit 2 with respect to image formation on the photoreceptor tram 14 by the margin setting operation, and when you want to create a margin at the left edge. If you want to create it on the right edge, you can speed up the paper feeding timing, and if you want to create it on the right edge, you can slow down the paper feeding timing.

However, if you want to make double-sided copies from a single-sided original.

The binding margin created on the front side of the copy paper and the binding margin created on the back side are exactly opposite when viewed in the direction of travel of the copy paper.

Therefore, in this case, is it necessary to perform image shifting only when copying one side of a sheet of copy paper? In this embodiment, in such a copying mode, even-numbered pages are copied first, and after fixing, Since the paper is placed in the intermediate stacker 24 once and then the odd-numbered pages are copied on the back side, image shifting is performed when the even-numbered pages are copied. Image shifting is realized by controlling the timing of sheet feeding from the registration rollers 22.

In the above copying operation, the copying apparatus main body 1, the RD device 3, and the processing device ? Next, we will explain some of the ways in which signals are exchanged with the i4 to control its operations.

First, detection of a document jam that occurs in RD) (loading ff13), that is, document jam, and control of the copying operation at that time will be described below.

Jam detection is performed in the RDH device 3 as follows.

(a) rX document set jam If the document leading edge detection sensor R32 is not ONL within a predetermined time after the copy button is pressed, a jam is determined.

At this time, the rear end regulating plate 36 is stopped from moving forward, and the document number counting operation is not started.

(b) Paper feed jam Original edge detection sensor R3, within a predetermined time after turning on, document passage detection sensor R33 or ONL/When not, or document passage detection sensor R3, or registration sensor R3 within a predetermined time after turning on , or ONL/If there is no one, it is determined that there is a jam.

At this time, if the number of originals is being counted or in one-sided original mode, the RDH device 3 will be stopped after ejecting the previous original, and if the copying machine main unit is in one-sided copying mode, it will be stopped after all the copy sheets inside are ejected. or, in other modes, stops after ejecting the copy paper on which the previous original was copied.

(c) If the document discharge sensor R35 is not ON within a predetermined time after the conveyance jam registration sensor R3 is turned ON, it is determined that a jam has occurred.

At this time, the RDH device 3 immediately stops regardless of whether it is in the original count mode or in one-sided or double-sided original mode, but if the copying machine main body l is in one-sided copy mode, all the copy paper inside is ejected. If the copy mode is in another mode, the copy mode is stopped immediately.

(d) Paper discharge jam If the document discharge sensor R35 or ONL does not turn off within a predetermined time, it is determined that a paper jam has occurred.

At this time, similarly to (c), the RDH device g13 immediately stops the document feeding operation. However, the operation of the main body of the copying machine is the same as (c) in the single-sided copy mode, or in other modes, it stops immediately in the single-sided original mode, but in the double-sided original mode, the previous original Stops after ejecting the copied paper.

(e) If the document passage detection sensor R33 is not ONL within a predetermined time after the reverse jam trailing edge detection sensor R3 is ONL, it is determined that a jam has occurred.

At this time, the RDH unit M3 immediately stops the document feeding (reversing) operation, and the copying device main unit 1 either ejects all the copy paper being processed internally and then stops, or ejects the copy paper that has copied the previous original. and stop.

In this way, depending on the location where the document jam occurs in the RDH device 3, whether a copy image is already being formed on the photoreceptor drum 14 or not is different. By controlling the movement of each copy paper differently, waste of copy paper can be reduced and jam handling can be facilitated.

For the same purpose, when a document jam occurs inside the RDH device 3 when the punch processing mode or binding processing mode is selected, the operation of the copying machine main body 1 is not stopped immediately, and the copying machine main body 1 is All copy papers present in (
(copied or not) and put it in a disposal bag N4.
is sent to an intermediate stacker 53.

In this way, the punching or binding process can be performed together with the copy paper that has been copied after jam removal and stored in the intermediate stacker 53, so that no copy paper is wasted.

For the same purpose, when a document jam occurs during the shift tray mode, the operations of the copying machine main body and processing device 4 are not stopped, and all the copy paper inside (copied or not) is transferred to the shift tray 50. After the copying machine main unit 1 is ejected, the operation of the copying apparatus main body 1 is stopped. Since blank sheets that have not been copied may be mixed in the copy sheets discharged to the shift tray 50, in that case, a message to the effect that the blank sheets should be removed is displayed on the display section 27 of the main body l of the copying apparatus.

By the way, if you press the copy button after selecting punch mode, binding mode, or both modes on the operation panel 26 of the copying apparatus main body 1, the document is fed by the RDH device 3, and the electrophotographic process in the copying apparatus main body 1 is started. A set of copied sheets is fed into the processing device 4.

In the processing device 4, a stacker discharge sensor (not shown) provided near the conveyance roller 54 detects that a copy sheet has been discharged to the intermediate stacker 53. When the stacker discharge sensor detects that the object has been discharged to the intermediate stacker 53, the processing device 4 performs punching or binding processing by the processing unit 55, and after sewing, the CPU of the control circuit of the processing device 4 400 to CPt) 100 and RD) of the control circuit of the copying machine main unit 3 to c p U :lOO of the control circuit of the copying machine main unit 3,
The roll copy cycle begins.

In this way, by starting the next copying operation at the same time as the punching or binding process ends, the operation becomes more reliable, and the next copying can be started without having to step over the ejecting process, which makes it possible to shorten the processing time. Become.

In the processing device δ4, the punch machine used for punch processing and the binding machine used for binding processing have a limit in their mechanical and force capacity, and there is a limit to the maximum number of sheets that can be processed. For example, the maximum number of sheets to be processed is 30 sheets.

However, when looking at the number of originals, there are both single-sided and double-sided originals, and the number of sheets to be processed differs depending on whether the copy is made on one side or both sides of the copy paper.

Therefore, in this embodiment, the maximum number of originals is determined as follows.

Double-sided → Double-sided 30 Since the RDH device 3 counts the number of originals before feeding the original, when the CPU 0100 of the copying device main body 1 receives the number of originals information from the CPU 300 of the RDH device 3, it calculates the number of originals to be copied. It is determined whether or not the maximum number of sheets specified for each mode has been exceeded, and if it is, a warning to that effect is displayed on the display unit 27 when the count of the number of originals is completed, and a series of copies starts from feeding the original. Avoid moving forward.

In connection with the above control, the number of originals counted by the RDH device 3 is temporarily stored in a memory built into the CPU 300. After that, when the document feeding for exposure starts, the count increases when the trailing edge of the document is detected by the registration sensor R34. The CPU 300 compares the number of originals counted and stored at the beginning with the number of originals counted when the originals are actually fed for exposure.
If the two numbers are different, the CPU instructs the CPU to stop the copying operation and displays a message on the display 27 asking the user to check the number of originals.The user then looks at this message, confirms the number of originals, and copies again. Resume operation.

In this embodiment, as described above, the RDH device N3 can be used to manually feed the document.

If the user attempts to manually feed a document while punching or binding processing is selected, the manual feed cover 45 of the RDH device 3 is first reversed, which is detected by the cover reversal detection sensor R3°. , CPU 0
0 to the CPU 400. The processing unit 4 performs only the punching operation and does not perform the binding operation based on the information from the copying machine main unit 1 indicating that the punching and binding mode is selected and the information from the CPU 30G about the manual feed mode. controlled.

By doing this, even when the user forgets to switch the binding mode, there is no need for unnecessary binding operations, and it is possible to eliminate wasted binding metal and impact on the binding machine.

Next, white margin creation and image shifting will be explained.

The user presses the binding margin button on the operation panel 26 of the main body 1 for the copy type, and further specifies whether it is right or left using the button. At that time, you can set the binding margin using the numeric keypad. The set margin amount is determined by the CPU of the control circuit.
It is stored in the memory built into the 1GG. cpuioo
sends a signal to the paper feeding motors 200 at a timing corresponding to the set margin amount to speed up or delay the timing of paper feeding.

In addition, when the copy mode of double-sided copying from a single-sided original is selected on the operation panel 26, the paper feeding timing is changed only during the copy cycle of even-numbered pages counted by the RDH device 3, and the second side of the copy paper is The amount of image shift performed during copying is also determined by the set margin amount.

In this embodiment, since synchronized exposure is performed using the RDH device 3, the exposure time is determined by the document size. On the other hand, the time required for transfer, which determines the copying speed, is originally determined by the size of copy paper. Also, when the copy magnification changes, the exposure time of the original changes.

Therefore, the copying speed in this embodiment is determined by the document size detected by the RDH device 3, the copy paper size directly selected by the user or determined from the copying magnification, and the copying magnification. For example, the following is an example at the same magnification (the unit is the number of copies per minute).

Further, an example of copying speed when changing size between standard sizes such as A4 to B5 is shown below.

(Left below) 9. ) Number of copies, and zoom magnification (o, oi between 0.5 and 1.55)
The copying speed (in increments) expressed in terms of copy paper size is as follows.

(Effects of the Invention) As explained above, in the present invention, when a document jam is detected in the punch processing or binding processing mode, all copy sheets in the copying device are transferred to the punching processing section or the binding processing section. Since the copying operation is stopped after the copying paper is ejected, it is possible to eliminate wastage of copying paper and reduce the trouble of handling jams.

[Brief explanation of the drawing]

FIG. 1 is an overall view of a copying apparatus according to the present invention, FIG. 2 is a schematic diagram showing the internal structure of the copying apparatus according to the present invention, and FIG. 3 is an internal view of an RDH device forming a part of the copying apparatus according to the present invention. A schematic diagram showing the structure, FIG. 4 is a block diagram of the control circuit of the copying apparatus according to the present invention. l... Copying device main body, 2... Paper feed unit, 3...
- RDH device, 4... Processing device, 10... Glass document table, 14... Photosensitive drum, 16... Developing device,
20... Fixing unit, 23... Reversing mechanism, 23-
...Intermediate stacker, 26...Operation panel, 27--
・Display section, 35... Original ari board, 42... Conveyance belt, 44... Reversing guide, 50... Shift tray unit, 51... Conveyance roller, 53... Stacker unit, SS- ...Processing unit, 56-...Storage tray, 7G, 80.90...Tray

Claims (1)

[Claims] In a copying machine that automatically feeds the originals to be copied one after another, forms the original image on the copy paper using an electrophotographic process, and processes the image-formed copy paper with punching or binding, a jam may occur while the original is being fed. a jam detection means for detecting a jam, and when a document jam is detected by the jam detection means in a punch processing or binding processing mode, the copy paper before punching or binding processing is conveyed to a punching processing section or a binding processing section. A copying apparatus comprising: a conveyance control means for controlling a copy paper conveyance means; and a copying operation stop means for stopping a copying operation after the copy paper is conveyed to the processing section.