JP3420448B2 - Copier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a circulating automatic document feeder (hereinafter also referred to as "RDH") and a non-circulating automatic document feeder (hereinafter also referred to as "ADF"),
After the copy process is completed for the document stack placed on the first document stacking table of H, the document stack placed on the second document stacking table of ADF is transferred to the document stacking table of RDH, and the document is transferred. The present invention relates to a copying apparatus capable of executing a reserved job mode for copying a bundle.

[0002]

2. Description of the Related Art As a copying apparatus, for example, Japanese Patent Laid-Open No. 4-88.
As disclosed in Japanese Patent Laid-Open No. 360-360, an automatic document feeder (automatic document feeder) having first and second document placing tables is provided, and a document bundle of the same job is divided into a plurality of document placing tables. When placed, after the copy process for the document stack on the first document mount is completed, the copy process for the document stack on the second document mount is continuously performed in the same copy mode as the copy process. It has been proposed to execute (this mode is referred to as "document division reservation job mode").

In such a copying apparatus, a single-sided / double-sided mode is set in which a single-sided image of two originals is copied onto both sides of one sheet when the original split reservation job mode is executed.
When the number of originals on the first original placing table is odd (first
In the case where sheets of one-sided image of the original of the final page fed from the original placing table are copied on one side are stacked on the double-sided tray), the following control is performed.

That is, in order to prevent blank pages from being formed in the middle of the finished copy sheets and the order of the pages from being disturbed, the bottom original (final original) of the original stack on the first original placing table is set. Copying is prohibited and the original document is left on the first original document table, and the original document stack on the second original document table is transferred to the first original document table and placed on the original document on the lowermost part. The bottom manuscript is once fed and re-started.
After returning to the original placing table and placing it on the uppermost original, the copying process for the original bundle is started.

[0005]

However, in the above-mentioned case, there is a drawback in that the conveyance control of the original becomes complicated, and at the same time, the original needs to be idle and the processing efficiency is poor. The present invention has been made in view of the above points, and an object of the present invention is to improve the processing efficiency when the document division reservation job mode and the single-sided / double-sided mode are set.

[0006]

In order to achieve the above object, the present invention provides a paper feed tray capable of storing a large number of paper sheets,
Also, a sheet having the original image copied on one side is once stacked, and the other side has a double-sided tray for reversing and re-feeding so that the image can be copied, and it is set at the original exposure position. An image forming apparatus that performs a copying process of exposing a document and copying the image onto a sheet fed from a paper feed tray or a double-sided tray, and a first document placing table on which a stack of documents to be copied is placed , The originals on the original placing table are automatically fed one by one and set at the original exposure position, and after the exposure of the originals on the original exposing position is completed, the originals are discharged to the first original placing table. And a second original placing table different from the first original placing table. The originals on the original placing table are automatically fed one by one and set at the original exposure position. After the exposure of the original on the exposure position is completed, ADF be discharged to the document discharge tray
Then, after the copying process for the document bundle on the first document placing table of the RDH is completed, the copying process for the document bundle on the second document placing table of the ADF is continuously performed in the same copy mode as the copying process. An original document division reservation job mode setting unit for setting the original document division reservation job mode and a single-sided / double-sided mode setting unit for setting a single-sided / double-sided mode for copying a single-sided image of two originals on both sides of one sheet are provided. In the copying apparatus, the following means are provided.

According to the first aspect of the present invention, the RDH is set in the state where the document division reservation job mode and the single-sided / double-sided mode are set.
When the copying process for all the pages of the original on the first original placing table is completed, the one-sided image of the original of the last page fed from the first original placing table is copied on one side to be the double-sided sheet. When stacked on the tray, the first page of the original on the ADF second original placement table is automatically fed and set at the original exposure position, and the original is exposed to reverse the single-sided image from the double-sided tray. Means for copying on the other side of the re-fed paper and discharging the original onto the first original placing table of the RDH after the exposure of the original on the first page on the original exposure position is completed. Is provided.

According to a second aspect of the present invention, in the copying apparatus according to the first aspect, the copying process on the other side of the sheet on which the image of the original of the last page re-fed from the double-sided tray is copied is completed, and Means is provided for discharging the bundle of documents on the document placing table to the document discharging tray after the RDH of the first page of the document is completely discharged to the first document placing table.

According to a third aspect of the present invention, in the copying apparatus according to the first aspect, when there is no document on the second document mounting table of the ADF, sheets of paper on which the image of the document of the final page is copied are stacked on the double-sided tray. As it is, the first of RDH
A means for discharging the bundle of documents on the document mounting table to the document discharge tray is provided.

According to a fourth aspect of the present invention, in the copying apparatus according to the third aspect, after the discharge of the original on the first original placing table of the RDH to the original discharging tray is started, the second original placing table of the ADF is set. When the original is placed, after the original on the first original placing table is completely discharged to the original output tray, the first page of the original on the second original placing table is automatically fed to expose the original. Position, and the original is exposed, the single-sided image is inverted from the double-sided tray and copied to the other side of the sheet that is re-fed, and the first page of the original on the original exposure position is exposed. A means for discharging the document to the document discharge tray after the completion is provided.

According to a fifth aspect of the invention, the RDH is set in the state in which the document division reservation job mode and the single-sided / double-sided mode are set.
When the copying process for all the pages of the original on the first original placing table is completed, the one-sided image of the original of the last page fed from the first original placing table is copied on one side to be the double-sided sheet. When stacking on the tray, after discharging the original stack on the first original placing table to the original output tray while the sheets on which the image of the original on the last page is copied are still stacked on the double-sided tray, Paper for automatically feeding the first page of the original on the second original placement table of the ADF, setting it at the original exposure position, exposing the original, reversing the single-sided image from the double-sided tray, and re-feeding the original. A means for discharging the original to the original discharge tray after the original on the first page on the original exposure position is exposed while the other side of the original is exposed.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 3 is an overall configuration diagram showing an example of a copying apparatus embodying the present invention, and FIG. 4 is a configuration diagram showing a recycle automatic document feeder (RDH) included in the copying apparatus,
FIG. 5 is a block diagram showing an acyclic automatic document feeder (ADF) included in the copying apparatus, and FIG. 6 is a block diagram showing an example of a sorter insertable into the copying apparatus.

In this copying apparatus, as shown in FIG. 3, a document is circulated on the copying apparatus main body (image forming apparatus) R.
A DH 11 and an ADF 12 are mounted, and a finisher 3 including a reversing unit 400 and a staple unit 410 is mounted on a side portion of the main body 1. The stapling unit 410 is provided on the right side of the reversing unit 400.
Instead of this, a sorter 450 as shown in FIG. 6 can be attached.

In the RDH 11, of the original stack placed on the first original mount 21 shown in FIG. 4 with the image surface facing downward, one original located at the lowermost position is the vacuum belt 22.
Is attracted to the sheet by the suction force and is conveyed to the left document feeding port by the vacuum belt 22 which rotates counterclockwise.
Is once drawn to the upper left side of the document, and then appears again to be set on the document stack.

The original fed in this state is sent to the intermediate conveying path 24 by the original feeding roller 23 and temporarily stopped there. The stopped original is set at the original exposure position on the contact glass 13 by the turn roller 25 and the original conveying belt 26 rotating in the clockwise direction by the subsequent feeding by restarting. Then, in the case of continuous feeding, this feeding operation is continuously performed, and the next document is fed to the intermediate conveyance path 24.

The original set on the contact glass 13 is sent to the original discharge path 29 by the original conveying belt 26 and the original discharge roller 28 and discharged. In that case, a single-sided original (image on one side is printed). There are different ejection methods for originals that have images) and double-sided documents (images that have images on both sides).

That is, in the case of a single-sided original, the original on the contact glass 13 is conveyed by the original conveying belt 26 and is at the switching position shown by the solid line in FIG.
When the trailing edge of the document that has been guided to the document discharge path 29 by the document 7 and once entered the document discharge path 29 is detected by the reversing sensor 14, the switchback roller 30 is rotated in the reverse direction to run backward.

At this time, since the paper discharge switching claw 27 has already been switched to the position shown by the phantom line in FIG. 4, the reversely driven original is guided to the forward rotation discharge path 33 and the original discharge roller 34.
As a result, the originals are discharged to the uppermost part of the original stack on the first original mounting table 21 in the same orientation as the original. In the case of a double-sided original, the original conveyed by the original conveying belt 26 from the contact glass 13 and guided to the original discharge path 29 has no reverse rotation of the switchback roller 30 this time. Proceed to 32.

Therefore, when stacking again on the first document placing table 21, the top and bottom are reversed (front and back relationship). Then, in this state, when the original is fed again for copying the second side, the back side of the second side is exposed on the contact glass 13 this time, and it passes through the reverse discharge path 32 again. Then, the front and back are reversed, and the original (first) front and back relationship is restored again and the sheets are stacked on the first document table 21.

In this way, the originals set on the first original placing table 21 are sequentially fed from the lower side,
It circulates and is returned to and stacked on the original placing table 21 again, but the detection of the original of the final page is performed by the original separating claw 35 set on the original of the final page and the original of the final page is detected. It is performed by being fed from the first document placing table 21 and dropping into the partitioning claw detection sensor 36.

ADF1 arranged next to RDH11
2 has a configuration as shown in FIG. 5, and is placed at the bottom of the document stack placed on the second document mounting table 39 with the image surface facing downward and regulated by the separation blade 37. Only one original document is fed by the calling roller 40 and the separation roller 41, and is conveyed to the turn roller 25 on the RDH 11 side by the pull-out roller 42, which is set at the original exposure position on the contact glass 13 by the original conveyance belt 26. To be done.

When the original is set, a copying process (copying process), which will be described later, is started and a copying process is performed. The subsequent operation may be the same as the operation of the RDH 11 described above, but when the document set on the contact glass 13 is discharged to the document discharge tray 44 shown in FIG.
The paper discharge switching claw 27 is set to a position indicated by a virtual line in the figure (switching to the upper side), the document transport belt 26 is rotated clockwise, and the ADF paper discharge roller 43 is turned on (starts rotation).

However, when the original is a double-sided original, the original is ejected to the original ejection tray 44 after the copying of the back side is completed. However, if the original is ejected as it is, the front and back sides will be reversed. The trailing edge of the document guided to the document discharge path 29 by the discharge switch claw 27 at the switching position shown by the solid line in FIG.
When it is detected by the switch back roller 30, the switch back roller 30 rotates in the reverse direction to run in the reverse direction.

At this time, since the paper discharge switching claw 27 has already been switched to the position shown by the phantom line in FIG. 4, the backward-moved original is guided in the direction of the forward rotation discharge path 33 and, at the same time, the reverse switching claw. Since 38 is switched, it is sent to the intermediate conveyance path 24 and the front and back are reversed, and the contact glass 13
Guided above. The subsequent ejection is the same as in the case of a single-sided original.

In the copying operation of the copying machine equipped with the RDH 11 and the ADF 12 described above, a necessary copying mode is set by the operation section described later provided in the copying machine body 1 of FIG. 3, and the print key described below is pressed. Be started by. By pressing the print key, the document is fed from the RDH 11 or the ADF 12 as described above, and the document is set at the document exposure position on the contact glass 13.
Then, there, the entire surface is illuminated by the flash lamp 52.

The power source 53 of the flash lamp 52 is
Electric charges are given prior to the flash, and light is emitted at a predetermined timing. The reflected light from the original document exposes the belt type photoconductor 7 through the first mirror 4, the through lens 5 and the second mirror 6. An electric charge is uniformly applied to the photoconductor 7 by a charger 8, and an electrostatic latent image is formed on the surface of the photoconductor 7 by the above exposure. The electrostatic latent image on the photoconductor 7 has its unnecessary portion removed by the eraser 9, is developed by the developing device 10, and is sent to the transfer portion.

The developed document image is transferred to a transfer paper (paper) by the transfer charger 17. The transfer paper is fed from a preselected one of three paper feed trays 18, 19 and 20 capable of accommodating a large number of papers of different sizes, or inverted from the double-sided tray 45. The paper is re-fed and conveyed toward the registration rollers 56 via the conveyance path 55.

Then, the transfer paper is registered by the registration roller 56.
It is temporarily stopped in the state of being abutted against the sheet, and is sent between the photoreceptor 7 and the transfer charger 17 at a timing at which the document image on the photoreceptor 7 can be transferred to a preset position. Then, the transfer paper on which the image has been transferred is separated from the photoconductor 7 by the separation charger 50 and sent to the fixing device 58 by the conveyor belt 57, where the image is fixed.

On the other hand, the photoconductor 7 is decharged by the charge removal charger 65 after the transfer paper is separated, and the cleaning device 66 is used.
Then, the residual toner on the surface is removed to prepare for the next copy. In this way, the copying process is executed in this copying apparatus. In the copying process, when the double-sided mode for copying the original image on both sides of the transfer paper is set as the copying mode, the double-sided switching claw 61 is set to the double-sided mode. The sheet is switched to the tray 45 side, the transfer paper is sent to the double-sided tray 45 through the double-sided entrance path 63, and is temporarily stacked in the double-sided tray 45.

Further, when the single-sided mode for copying the original image on only one side of the transfer paper is set as the copy mode, the double-sided switching claw 61 is switched to the paper discharge side and is conveyed to the paper discharge switching claw 62. The paper discharge switching claw 62 functions to switch between discharging the discharged transfer paper to the main body tray 49 and discharging to the finisher (peripheral machine) 3.

When the transfer paper (copy paper) which has been subjected to the copying process is discharged to the finisher 3, it is discharged from the first copy paper when the single-sided mode is set.
It is reversed by the reversing unit 400 and conveyed to the staple unit 410. In the double-sided mode, the sheet is ejected after the back side copy is executed, and thus the sheet is conveyed as it is without being inverted.

The staple switching claw 411 switches whether the copy sheet from the reversing unit 400 is discharged to the staple tray 412 or the finish tray 413. The staple tray 412 is a tray for temporarily stacking the sheets discharged to the finish tray 413 in order to staple the copy sheet bundle.

When the transfer paper (copy paper) on which the original image of the last page is copied is stacked on the staple tray 412, the copy paper bundle in the staple tray 412 is bound by the stapler 414, and then the lift-up belt 4 is attached.
The sheet is discharged to the finish tray 413 by 15.

A sorter 450 shown in FIG. 6 is provided on the side of the reversing unit 400 instead of the stapling unit 410.
When a single-sided mode is set, when a copy sheet is mounted on the sorter 450 and is ejected from the first copy sheet, it is inverted by the reversing unit 400 and conveyed to the sorter 450. . In the double-sided mode, the sheet is ejected after the back side copy is executed, and thus the sheet is conveyed as it is without being inverted.

In the sorter 450, the copy sheet sent from the reversing unit 400 through the entrance guide plate 451 is conveyed by the conveying belts 452 and 453 toward the switching claw 454, and by the switching claw 454, the sheet discharge tray 455.
Or, it is discharged to any one of the many bins 456a, 456b, ..., 456n. Copy paper bins 456a, 45
Discharging to 6b, ..., 456n is performed by the deflecting claws 457 provided for each bin 456a, 456b ,.

That is, when the leading edge of the copy sheet S comes to the front of the deflecting claw 457 corresponding to the next discharge destination bin,
Since the bin solenoid 458 is turned on and the deflecting claw 457 is switched to the position shown by the solid line in FIG.
Is discharged to the bottle along the deflecting claw 457. 1
When the discharge of the copy sheets is completed, the bin solenoid 45
Turn off 8.

The bins are switched every time a copy sheet is ejected. When the number of copy sheets discharged to each bin reaches a preset number on the operation unit, the operation of returning to the leading bin 456a is repeated every time the original is replaced. Since the sorter 450 functions to sort the same copy sheet into different bins, by using it in combination with the ADF copy and the RDH stack copy, it is possible to create a plurality of copy sheets without circulating the document.

By the way, since the belt type photoconductor 7 has a seam of the belt, the image forming areas on the belt are determined so as to be spaced at equal intervals for each size while avoiding the seam portion. . FIG. 8 shows an image forming area (segment) in which the photoconductor 7 is cut at the seam and developed.
It is a figure which shows arrangement | positioning.

The five A4 segments shown by the one-dot chain line, the four B4 segments shown by the broken line, and the three A3 segments shown by the two-dot chain line are set to have equal intervals. Further, the photoconductor 7 is provided with a synchronization mark 60, which is used when the image forming area is determined while avoiding the seam, at the end of the photoconductor 7 at a position a certain distance from the seam.

FIG. 9 is a plan view showing an example of the operation unit 70 provided in the copying apparatus main body 1 shown in FIG. The operation unit 70 is provided with a mode clear / preheat key 71 that also serves as a mode clear key and a preheat key. The mode clear / preheat key 71 functions as a mode clear key when the key is pressed, and it remains as it is. Press and hold it to function as a preheat key.

The mode clear key is for returning each mode (copying condition) to the standard mode. By operating this key, the number of copies (repeat number) is 1, the density is automatic density, and the paper feeding is automatic. The paper feed selection and the scaling factor are set to the same size, and all other functions such as the double-sided mode are canceled. The preheat key is an alternate switch that is pressed to put the machine in the preheat state and release the preheat state. In the preheating state, the fixing device 58 is controlled at a low temperature, only the preheating lamp is turned on, and the other displays are turned off to suppress the power consumption. Therefore, this preheat key is invalid while the copy process is being executed.

Reference numeral 72 denotes an interrupt key, which is pressed to make an interrupt copy. Reference numeral 73 is an enter key, which is pressed when inputting a numerical value for zoom magnification / magnification and binding margin. A print key (start key) 74 is pressed to start the copying operation. This also serves as a ready / weight display, and the green LED lights when ready and the red LED lights when waiting.

Reference numeral 75 is a ten-key pad, which is used for setting the number of copies, inputting the zoom magnification and binding margin values. A clear / stop key 76 has the functions of a clear key during standby and a stop key during copying. That is, by pressing the clear / stop key 76, the set number of copies can be released (cleared) or the copy operation can be interrupted (in this case, the copy operation when the clear / stop key 76 is pressed). And then stop the machine).

Reference numeral 77 is a guidance key, which is pressed when displaying the explanation of the basic operation. Reference numeral 78 denotes a program registration key, which allows a user to register a mode that is frequently used. The registered mode is a program call key 79.
Can be called by. A reservation key 570 is pressed when setting the reservation job mode. Reference numeral 571 denotes a reservation setting key, which is recognized by the machine when pressed after the reservation copying mode is set.

Reference numeral 80 denotes a display unit, which is of LCD type. The display unit 80 is provided with touch keys on its surface and serves as a selection key as well as a function display. A mode setting screen as shown in FIG. 10 is displayed on the display unit 80 when the power is turned on. In this mode setting screen,
Reference numeral 81 denotes a message display that displays information about the machine, and displays messages such as "copy is possible.""Please supply paper.""Reservation copy is possible."

Reference numeral 82 is a set display area. 83
Is a tray selection key that also serves as the paper size and the remaining amount display area. From the left, the upper tray (paper feed tray 20),
The middle tray (paper feed tray 19), the lower tray (paper feed tray 18), and the large capacity tray are shown. Reference numeral 84 denotes an automatic paper selection key. When this key is selected, a paper feed tray containing paper of the same size as the original is automatically selected.

Reference numeral 85 denotes a density adjustment key, which is pressed when manually adjusting the copy density. 86 is an automatic density key,
Press to automatically adjust the copy density according to the background density of the original. Reference numeral 87 is a same-size key, 88 is an enlargement key, and 89 is a reduction key, which is pressed to specify equal-size copying or reduction or enlargement of a standard size.

90 is a zoom key, 64 to 142%
Press to specify any magnification between. Reference numeral 91 denotes a paper designation scaling key, which is used when it is desired to automatically reduce or enlarge the image of the original in accordance with the designated paper size. Reference numeral 92 denotes a double-sided key, which is selected and pressed when copying a single-sided image of two originals onto both sides of a transfer sheet or when copying a double-sided image of one original onto one side of two sheets.

Reference numeral 93 is a double-sided mode message area, and when the double-sided mode function is selected, a copy (copy paper) creation state is shown by a picture. Reference numeral 94 denotes a binding margin key, which can be set to either the left or right side if the binding margin is 21 mm or less when the binding margin is required. A binding margin mode message area 95 displays the binding margin state when the binding margin mode function is selected. 96 is a shift function selection key, 97 is a one-place staple selection key, and 98 is a two-place staple selection key.

FIG. 11 is a block diagram showing an example of the control unit of the operation unit 70. The control unit of the operation unit 70 is
CPU 101, ROM 102, RAM 103, interrupt controller 104, communication port 105 for communication with the main control unit, LCD controller 106 for controlling the LCD display unit and display memory 107, output port 168 for turning on the LED, and touch keys. , A DMA controller 109 for reading the input of the push key, and the like.

When this copying apparatus is made to perform a copying operation, the operator sets a necessary copying mode (copying condition) by operating the keys on the operation unit 70 shown in FIG. 9, and presses the print key 74. Then, a copy start instruction is input. Then, the above-described copying process is executed according to the copying mode set by the key operation on the operation unit 70.

FIG. 12 is a schematic configuration diagram including an example of a control system of the copying apparatus main body 1. The control unit includes a CPU 201 that controls the entire copying apparatus main body 1 and a ROM 22.
1, a RAM 222, an input port 223, an output port 202 and the like.

Various sensors are connected to the input port 223, and the input port 223 inputs sensor signals from the various sensors. The output port 202 has a motor control circuit 204 and a power pack 20.
5 and the like are connected so that the load can be controlled.

In this copying apparatus, since the belt type is used for the photoconductor 7 as described above, the image forming area on the photoconductor 7 is formed before the image formation so that the joint does not become the image forming area. I need to decide. In order to determine the image area, it is necessary to drive the photoconductor 7 and detect the synchronization mark 60 (see FIG. 8) provided at a constant distance from the joint with the mark sensor 210.

Therefore, in this copying apparatus, the output port 2
When the drive signal from 02 is input to the motor control circuit 204 to drive the photoconductor drive motor 208, since the encoder 209 is integrally attached to the photoconductor drive motor 208, the moving distance of the photoconductor 7 is increased. The number of pulses is output in proportion to.

The pulse signal is sent to the motor control circuit 204.
Is used to rotate the photoconductor drive motor 208 at a constant speed, and the pulse signal thereof is input to the frequency divider 2
It is also input to 06, divided by a predetermined dividing ratio, and then C
It is input to the PU 201 and the number is counted. Since the value is proportional to the movement amount of the photoconductor 7, the image forming area is determined by this count value.

Next, the copy sequence will be described. When the tip of the segment reaches a predetermined position, the sequence operation starts, and the sequence control counter starts operating. This counter counts up by the pulse signal from the frequency divider 206 and is cleared when the sequence is completed. When the counter starts operating and its value reaches the value of CNT_1, the output port 202
A signal is output to the power pack 205 from the power pack 205, and the charger 8 operates to uniformly charge the photoconductor 7.

Next, when the count value reaches CNT_2,
A charge start signal is input to the power supply 53 from the output port 202, and the power supply 5 is turned on to turn on the flash lamp 52.
An electric charge is stored in the capacitor in 3, and the flash lamp 52 is turned on by sending a flash signal to the power source 53, and the original set on the contact glass 13 is irradiated with light to expose the photoconductor 7.

The count value of this flash signal is C
It is output at NT_3. When the photoconductor 7 further rotates and the leading edge of the image reaches the position of the eraser 9 (= CNT_4),
When the portion of the eraser 9 corresponding to the image is turned off and the trailing edge of the image reaches the position of the eraser 9 (= CNT_5), the eraser 9 is fully turned on and the excess charges on the photoconductor 7 are erased, so that the original The electrostatic latent image is left only on the image portion.

This electrostatic latent image is developed by the developing device 10 (see FIG. 3).
When the visible image is developed by, and the visible image is a front side copy (copying the original image on one side of the sheet), the transfer paper sent from any of the paper feed trays 18, 19, and 20. When the back side is copied (the original image is copied to the other side of the sheet), the image is transferred to the transfer sheet sent from the double-sided tray 45. In order to synchronize with the original image, the transfer sheet starts to be conveyed at different timing depending on which tray is sent out.

The transfer sheet on which the original image (visible image) is transferred passes through the conveyor belt 57 and is fixed by the fixing device 58. The double-sided switching claw 61 operates at CNT_6, and when it is stacked on the double-sided tray 45, it is switched to the switching position for guiding the transfer sheet to the double-sided tray 45 side, and is switched to the discharge side otherwise.

The paper discharge switching claw 62 operates by CNT_7 and switches between discharging the transfer paper to the main body tray 49 or sending it to the finisher 3. Then, the transfer paper is ejected, whereby the sequence operation by the operation control system shown in FIG. 11 is completed. The correspondence between the count value of the sequence control counter and the sequence processing will be described next.

[0063] Count value sequence processing CNT_1 charging ON CNT_FEED Document feeding CNT_DPX double-sided paper feed CNT_2 charging start CNT_3 Flash ON CNT_EXIT Document output CNT_4 Erase OFF CNT_HIGH Upper feed CNT_MID Middle feed CNT_5 Erase ON CNT_LOW Lower feed CNT_6 Double-sided switching claw ON / OFF CNT_7 Paper output switching claw ON / OFF

The copying process is realized by successively executing this sequence process at the movement timing of the segment. Since the normal copying process is determined by this segment size and the paper size to be used, the processing speed of A4 size is the fastest, B4 size is the next, 4/5 of A4 size, and 5 of A3 size. It becomes 3/3.

The change of the processing speed is realized by changing the correspondence between the segment size and the paper size. That is,
Even if the paper size is A4, it can be reduced to 4/5 by using the B4 segment, and can be reduced to 3/5 by using the A3 segment. When the paper size is B4, the processing speed can be reduced to 3/4 by using the A3 segment.

FIG. 13 is a block diagram showing an example of the control units of the RDH 11 and the ADF 12. CPU300
Performs serial communication with the CPU 201 of the copying apparatus main body 1, converts an analog signal from the original size sensor 309 into a digital signal, and takes in the digital signal.
By inputting the signal from 02 and outputting the corresponding signal to the output port 301, RDH11 and ADF12
To control ROM, RAM, AD
A one-chip microcomputer with a converter and serial communication port is used.

A motor driver 303 for driving the motor at a constant speed is connected to the output port 301, and drives the document feeding motor 304, the belt driving motor 305, and the document discharging motor 306 as necessary. Further, loads such as the document feeding clutch 307 and the partitioning claw solenoid 308 are also driven.

The document presence / absence sensor 31 is connected to the input port 302.
0, document partitioning claw sensor 311, transport sensors 312-31
5, document length sensors 316 to 319, lift switch 3
20, sensor switches such as cover switches 321 and 322 are connected to obtain necessary information. The document feeding operation of the RDH 11 and the ADF 12 is realized by driving the load at a predetermined timing.

Here, the control section of the above-mentioned copying apparatus (copying apparatus main body 1, operation section 70, RDH 11, and ADF 12).
Each of the control units) functions as the means shown in the following (1) to (6) or as the means shown in (1), (2) and (7).

(1) The first original placing table 21 of the RDH 11
An original document for which a document division reservation job mode is set in which after the copy process for the upper document stack is completed, the copy process for the original document stack on the second document table 39 of the ADF 12 is continuously performed in the same copy mode as the copy process. Split reservation job mode setting means. (2) Single-sided / double-sided mode setting means for setting a single-sided / double-sided mode for copying a single-sided image of two originals onto both sides of one sheet.

(3) When the copy processing for all the originals on the first original placing table 21 of the RDH 11 is completed with the original split reservation job mode and the single-sided / double-sided mode set, the first original When a single-sided image of the document of the last page fed from the mounting table 21 is copied on one side and stacked on the double-sided tray 45, the first page on the second document mounting table 39 of the ADF 12 is printed. The document is automatically fed and set at the document exposure position on the contact glass 13,
The original is exposed, the single-sided image is inverted from the double-sided tray 45 and copied onto the other side of the sheet to be re-fed, and after the exposure of the first page of the original on the original exposure position is completed, A means for ejecting the original document to the first original document table 21.

(4) When the copying process on the other side of the sheet on which the image of the original of the last page re-fed from the double-sided tray 45 is copied is completed, the first original of the original of the first page is completed. Means for discharging the document stack on the document table 21 to the document discharge tray 44 after the discharge to the table 21 is completed. (5) When there is no original document on the second original document table 39 of the ADF 12, while the sheets on which the image of the original document of the final page has been copied are stacked on the double-sided tray 45, R
Means for discharging the document stack on the first document mounting table 21 of the DH 11 to the document discharge tray 44.

(6) First original placing table 21 of RDH 11
After starting to discharge the upper document to the document discharge tray 44,
When a document is placed on the second document placing table 39 of the ADF 12, after the document on the first document placing table 21 is completely discharged to the document discharge tray 44, the second document placing table 39 of the ADF 12 is completed. The original of the first page above is automatically fed and set at the original exposure position of the contact glass 13, the original is exposed, the single-sided image is inverted from the double-sided tray 45, and the other side of the re-fed paper is fed. Means for ejecting the original onto the original ejection tray 44 after the original is exposed on the original exposure position after the exposure of the original on the first page is completed.

(7) When the copy processing for all the originals on the first original placing table 21 of the RDH 11 is completed with the original split reservation job mode and the single-sided / double-sided mode set, the first original When sheets of which the one-sided image of the last page document fed from the mounting table 21 is copied on one side are stacked on the double-sided tray 45, the image of the last-page document is copied to the double-sided tray 45. After stacking the stacked sheets, the original bundle on the first original placing table 21 of the RDH 11 is ejected to the original ejection tray 44, and then the first page of the original on the second original placing table 39 of the ADF 12 is ejected. While automatically feeding and setting the original on the contact glass 13 at the exposure position, the original is exposed and its one-sided image is reversed from the double-sided tray 45 and copied to the other side of the sheet to be re-fed. After exposure to the first page of the document on the document exposure position it has been completed, means for discharging the document to the document output tray 44.

Next, the RDH copy in this copying apparatus will be described. << Simplex / Simplex Mode >> In this copying apparatus, when the simplex / single-sided mode is set, as described in FIG.
Of the bundle of originals having the image surface facing downward on the first original placing table 21 of H11, the lower originals are fed one by one, and the originals of the contact glass 13 are exposed through the intermediate conveyance path 24. It is set at a position and exposed at a predetermined timing.

When the exposure is completed, the document on the document exposure position is sent to the left side in FIG. 4 by the document transport belt 26 and is discharged onto the document discharge tray 44. Then, since the next original is fed during the exposure in which the exposure of the previous original has not been completed yet, a copy is made without providing a delay for original exchange.

FIG. 14 shows how the original is fed and the transfer paper is fed at this time. In FIG. 14, circled numbers 1-1
0 indicates an original of pages 1 to 10, and ∘ indicates a transfer sheet to be fed. Since one copy of the original on the first original placing table 21 of the RDH 11 shown in FIG. 4 is made, one copy is made, and this operation is repeated N times to make N copies.

<< Simplex / Duplex Mode >> When the simplex / duplex mode is set, first, a copy of the original which becomes the front side by the first original circulation is made, and the transfer paper on which the original image is copied is temporarily placed on the double-sided tray. Stack at 45. Then, in the second original circulation, the image of the original that was not copied in the first original circulation is copied to the back surface (the surface without the original image) of the transfer sheets stacked on the double-sided tray 45, thereby making one copy. Make a two-sided copy of.

When a plurality of copies are to be prepared, when the second and subsequent cycles of the original document are circulated, the original image is copied onto the back surface of the transfer paper re-fed from the double-sided tray 45, and at the same time, the original image is transferred onto the front surface of the double-sided tray 45. By stacking the transfer sheets having been copied, the N copies are created by N + 1 circulations of the document.

FIG. 15 shows how the original is fed and the transfer paper is fed at this time. In FIG. 15, circled numbers 1 to
Reference numeral 10 denotes an original of pages 1 to 10, ● denotes a transfer sheet whose front surface is copied and is stacked on the double-sided tray 45, and ◯ denotes a transfer sheet re-fed from the double-sided tray 45.

<< Double-sided / Double-sided mode >> When the double-sided / double-sided mode is set, first, a copy of the original that is the front side is made by circulation of the original, and the transfer paper on which the original image is copied is temporarily placed on the double-sided tray 45. To stack. With this circulation, the original is reversed and discharged. In the next document circulation, the transfer paper with the image copied on the front surface stacked in the double-sided tray 45 is re-fed, and the original image is copied on the back surface of the transfer paper, thereby making a copy of one copy. create.

When the original is circulated during copying on the back surface of the transfer sheet, the original is turned over again to return to the initial state. That is, when the original document on the first original document table 21 circulates twice, one copy is created.

FIG. 16 shows how the original is fed and the transfer paper is fed at this time. In FIG. 16, circled numbers 1 to
Reference numeral 10 indicates front-side feeding of the originals of pages 1 to 10, and reference numerals 1 to 10 indicate back-side feeding of originals of the pages 1 to 10, respectively. Further, ● indicates a transfer sheet whose surface is copied and stacked on the double-sided tray 45, and ○ indicates a transfer sheet which is re-fed from the double-sided tray 45.

Next, ADF copy in this copying apparatus will be described. << Single-Sided / Single-Sided Mode >> In this copying apparatus, when the single-sided / single-sided mode is set, among the original bundles of which the image surface is placed face down on the second original placing table 39 of the ADF 12,
The draft of the first page located at the bottom is fed, set at the document exposure position on the contact glass 13, and exposed at a predetermined timing.

The exposure is repeated N times in order to make a copy of N copies. When this is completed, the original document on the original document exposure position is ejected onto the original document ejection tray 44 by the original document conveyance belt 26, and two pages are printed. The eye original is fed (exchanged for the next original). Therefore, the same copy is made N times in succession before the document is replaced.

FIG. 17 shows how the original is fed and the transfer paper is fed at this time. In FIG. 17, circled numbers 1 to 6
Indicates a manuscript of pages 1 to 6, and ○ indicates a transfer sheet to be fed.

<< Simplex / Duplex Mode >> When the simplex / duplex mode is set, the original of the first page is copied N times in succession, and the N sheets of transfer paper having the original image copied on one side thereof are respectively made. Stack on the double-sided tray 45. Then, the image of the second page of the original is copied on the back surface (the surface without the original image) of the N transfer sheets stacked on the double-sided tray 45.

Thereafter, the same operation as the operation for the first page original is performed for the third page and subsequent odd page originals, and the second page original is performed for the fourth page and subsequent even page originals. A double-sided copy of the N copy is created by performing the same operation as the operation.

FIG. 18 shows how the original is fed and the transfer paper is fed at this time. In FIG. 18, circled numbers 1 to
Reference numeral 4 denotes an original of pages 1 to 4, ● denotes a transfer sheet whose front surface is copied and is stacked on the double-sided tray 45, and ◯ denotes a transfer sheet which is re-fed from the double-sided tray 45.

<< Duplex / Duplex Mode >> When the duplex / duplex mode is set, the original of the first page is copied N times in succession, and the N sheets of transfer paper having the original image copied on one side thereof are respectively printed. Stack on the double-sided tray 45. Next, the original is inverted using the RDH 11, and the images of the inverted original are copied on the back surface (the surface without the original image) of the N transfer sheets stacked on the double-sided tray 45.

Thereafter, by performing the same operation as the operation for the original on the first page for the originals on the second and subsequent pages, it is possible to make a double-sided copy of N copies.

FIG. 19 shows how the original is fed and the transfer paper is fed at this time. In addition, in FIG. 19, circled numbers 1 to
Reference numeral 2 denotes the front-side feeding of the originals of pages 1 and 2, and circled numbers 1 and 2 denote the rear-side feeding of the originals of the first and second pages. Further, ● indicates a transfer sheet whose surface is copied and stacked on the double-sided tray 45, and ○ indicates a transfer sheet which is re-fed from the double-sided tray 45.

Even when RDH11 is used, AD
After feeding the original document as in F12, the copying process for a predetermined number of copies can be repeated to make a copy of a predetermined number of copies, which is called RDH stack copy.

Next, the reserved job mode according to the present invention in this copying apparatus will be described. In this reserved job mode, the second job is executed before the first job is started or during execution.
It is possible to set the jobs of, and each of the jobs can be continuously executed. In this embodiment, RDH11
When the reserved job mode is set after the copying operation using the is completed, the first document table 2 of the RDH 11 is
The document on 1 is discharged to the document discharge tray 44.

That is, the original feeding operation of the RDH 11 feeds the originals on the first original placing table 21 one by one,
The original document exposure position of the contact glass 13 is passed as it is, and the original document is ejected to the original document ejection tray 44. In this way, by discharging the document on the first document mounting table 21 of the RDH 11 which has completed the copying process to the document discharge tray 44, the RD
H11 is made ready for the next job.

After that, the second original placing table 3 of the ADF 12
If the original is placed on the 9th, it is set to the first of the RDH11.
Then, the document is transferred to the original table 21 and the copy process is executed. The operation for transferring the original placed on the second original placing table 39 of the ADF 12 onto the first original placing table 21 of the RDH 11 is performed by the feeding operation of the ADF 12 and the RDH 1 described above.
This is a combination of the first feeding operation.

Here, a method of setting the reserved job mode using the operation unit 70 shown in FIG. 9 will be described. In this copying apparatus, when the reservation key 570 on the operation unit 70 is pressed during the copy start waiting state or during the copying operation, the current set copy mode is temporarily stored in the memory (RAM 103) and the display unit 80 displays the current copy mode. A mode setting screen different from the mode setting screen is displayed.

That is, in the case of waiting for the start of copying,
After the mode is cleared once, the mode setting screen (initial setting screen) is displayed on the display unit 80. When the copy operation is in progress, the copy mode according to the current mode setting screen (copying screen) is saved (stored) in the memory, a new mode setting screen (initial setting screen) is displayed on the display unit 80, and the copy mode is displayed. It becomes possible to set. The operation for setting the copy mode is the same as the operation for setting the normal copy mode.

After the setting of the copy mode (copy conditions) such as the duplex mode, the magnification change mode, the number of values (the number of repeats), the paper size, the copy density, etc. is completed, the reservation setting key 571 is pressed to make the second setting. Job reservation (setting of reserved job mode) is completed. When the setting of the reserved job mode is completed, the copy mode saved in the memory is called, the display screen of the display unit 80 returns to the mode setting screen before the reservation key 570 is pressed, and a message indicating that the reservation is being made is displayed. Is displayed. For the document bundle you want to copy in the reserved job mode,
It is necessary to place it on the second document table 39 of the DF 12.

The shift to the reserved job mode during the copying operation can be performed not only by pressing the reservation key 570 but also by setting the document on the second document table 39 of the ADF 12 (placement). Whether or not to shift to the reserved job mode by setting a document can be set by a mode for setting a customizable function called an up mode. With this reserved job mode, the next job can be set during the copying operation, so that the machine can be effectively used without worrying about the end of the previous job.

FIG. 20 is a flow chart showing an example of the reserved job mode setting process by the control unit of this copying apparatus. This routine is started by being called by a main routine (not shown). First, it is checked whether or not the reservation key 570 has been pressed, and when the reservation key 570 is pressed, the status of the copying apparatus is checked to determine whether the copying apparatus is in the copy start waiting state or not. If copying is in progress, the reservation status is checked.

If the flag (reserved flag) indicating that the reservation has already been made, that is, if the copy mode (reserved copy mode) for executing the reserved job has been set, Alternatively, if a flag (reservation flag) indicating that reservation is in progress (reservation copy mode is being set) is set, the process returns to the main routine.

If neither the reserved flag nor the reserved flag is set, the reserved copy mode can be set. Therefore, the process of storing the current copy mode in the memory (copy mode storing process) is performed. After setting the reserved flag, a process (reservation setting screen display process) for displaying a reservation setting screen, that is, a new mode setting screen (initial setting screen) on the display unit 80 of the operation unit 70 is performed to perform the reservation copy mode. Allows setting and returns to main routine.

On the other hand, if the reservation key 570 is not pressed, the presence / absence of a document on the second document table 39 of the ADF 12 is checked, and if there is no document (if no document has been set), the main routine continues as it is. Return to, but if there is a document (if the document is set), check the status of the copying machine, and if the copying machine is in the copy start waiting state or during copying operation, a flag that allows reservation by document setting It is checked whether or not the (reservation allowance flag) is set, and if it is set, the reservation status is checked, and thereafter, the same judgment and processing as described above are performed.

FIG. 21 is a flow chart showing an example of the reserved copy mode setting process by the control unit of this copying apparatus. This routine is also started by being called by the main routine. First, it is checked whether or not the reservation setting key 571 is pressed, and when it is pressed, it is checked whether or not the reserved flag is set and set. If so, a process (reserved copy process) of storing the reserved copy mode on the reservation setting screen in the memory is performed.

Then, the reserved flag is cleared and the reserved flag is set. Although illustration is omitted, when the reserved flag is set, the reservation key 570 is controlled to be invalid, and at the same time, a message indicating that the reservation is in progress is displayed. Finally, the pre-reservation copy mode is called, and the pre-reservation mode setting screen is displayed on the display unit 80 of the operation unit 70. The pre-reservation copy mode calling process is performed to complete the reservation copy mode (reservation job mode) setting. Return to routine.

Next, the copying operation when the document division reservation job mode and the single-sided / double-sided mode are set in this copying apparatus will be described. Here, the document division reservation job mode means a reservation job mode in which the reservation copy mode in which the setting is completed and the copy mode before reservation are the same.

In this copying apparatus, when the document division reservation job mode is set, the document bundle placed on the first document placing table 21 of the RDH 11 and the second document placing table 39 of the ADF 12 are placed. It is necessary to copy the original bundle as one original bundle. Therefore, with the single-sided / double-sided mode set, the print key 7 shown in FIG.
When 4 is pressed, the copying machine first executes the first job.

That is, the first page of the original on the first original placing table 21 of the RDH 11 is fed and set at the original exposure position of the contact glass 13, the original is exposed, and the image is fed to the paper feed tray ( Copying is performed on one side of a transfer paper fed from a preselected one), the transfer paper is temporarily stacked on the double-sided tray 45, and the original on the original exposure position after exposure is placed on the first original. It is discharged to the table 21.

Next, the first original placing table 21 of the RDH 11
The original on the second page above is fed and the contact glass 13
Set to the original exposure position, the original is exposed, the image is inverted from the double-sided tray and copied to the other surface of the re-fed transfer paper, and the transfer paper is externally (for example, shown in FIG. 6). The document on the document exposure position after the exposure is discharged to the first document table 21 while being discharged to the sorter 450).

Thereafter, the same operation as the operation for the first or second page of the originals of the third and subsequent pages is performed, and the final page of the originals fed from the first original placing table 21 is processed. When the image is copied from the double-sided tray 45 to the other side of the transfer sheet that is reversed and re-fed, the ADF 12
Of the original bundle on the second original placing table 39 of the RDH 11
After being transferred to the document placing table 21 of No. 2, the reserved job (second job) is executed in the same copy mode as the first job.

Here, normally, the same operation as the operation for the first page original is performed for the third page and subsequent odd page originals, and the second page is performed for the fourth and subsequent even page original pages. The same operation as that for the original of the eye is performed. However, the original of the final page fed from the first original placing table 21 may be the original for front side copying.

This occurs when the number of originals (number of pages) is odd when the normal single-sided / double-sided mode is set, but when the special mode is set, the number of originals is odd. It is not always the case of one sheet. For example, there is a case where a document in the middle is used as a document for interleaving paper, only the image is copied onto one transfer sheet, and the transfer sheet is directly discharged to the outside. In such a case, even if the number of originals is an odd number, the original of the last page may be the original for back side copying.

Considering such a case as well, when the final page original fed from the first original placing table 21 is the original for front side copying, that is, the image of the final page original is copied. When the transfer sheets are stacked on the double-sided tray 45, the next original becomes the original on the second original placing table 39 of the ADF 12. The processing in that case is as follows.

At this time, since the copy processing has already been completed for the original stack on the first original placing table 21 of the RDH 11, the second original placing table 3 of the ADF 12 is left as it is.
The first page original on 9 (the lowest original in this embodiment) is fed, set at the original exposure position on the contact glass 13, the original is exposed, and the single-sided image is inverted from the double-sided tray 45. Is copied on the other side (back side) of the sheet to be re-fed, and after the exposure of the first page of the original on the original exposure position is completed, the original is ejected to the first original table 21. .

The processing on the original on the second original placing table 39 can be realized only by changing the original feeding start position. That is, in the processing of the copy sequence,
It is to change the count value of document feeding.

When the copying process for the original on the first page is completed and the RDH 11 is completely discharged to the first original placing table 21 and the two-sided copying is completed, the first original placing table is completed. The original stack on 21 is discharged to the original discharge tray 44 one by one. When this document discharge is complete,
RDH the document stack on the second document table 39 of the ADF 12.
The sheets are transferred one by one to the first document placing table 21 of No. 11.

When the transfer of the original document to the first original document table 21 is completed, the second job (reserved job) is subsequently executed in the same copy mode as the first job. During execution of this second job, set the reserved job mode as described above,
Setting the same copy mode as the first and second jobs as the reserved copy mode so that the third job is executed in the same copy mode as the first and second jobs after the second job is completed. You can also Similarly, it is possible to continuously perform the fourth and subsequent jobs.

Here, the problem is that the original is not placed on the second original placing table 39 of the ADF 12, but as long as the original split reservation job mode is set, the first of the RDH 11 is set. When the copying process (first job) for the document stack on the document table 21 is completed, the second side of the ADF 12 is placed on the other side of the transfer paper in the double-sided tray 45 on which the image of the document of the last page is copied. Document placing table 3
It is necessary to copy the one-sided image of the first page of the document fed from the document No. 9.

Therefore, if the original is not placed on the second original placing table 39 of the ADF 12 when the first job is completed, it waits until the original is placed on the second original placing table 39. It is desirable to avoid it because it will be in a state and it will be a waste of time waiting. To this end, the first document table 21 of the RDH 11 that has completed copying is
It is necessary to discharge the upper document bundle to the document discharge tray 44.

Therefore, when the first job is completed,
When there is no original document on the second original document table 39 of the ADF 12, the RDH 1 is placed on the double-sided tray 45 while the sheets on which the image of the final page image is copied are still stacked.
The original bundle on the first original placing table 21 is discharged to the original discharging tray 44 one by one. In addition, the first document placing table 21
After starting to discharge the upper document to the document discharge tray 44,
When the original is placed on the second original placing table 39, the following processing is performed.

That is, after the discharge of the original on the first original placing table 21 of the RDH 11 to the original ejection tray 44 is completed, the first page of the original on the second original placing table 39 of the ADF 12 is automatically fed. Then, the original is exposed on the contact glass 13, and the original is exposed to copy the one-sided image from the double-sided tray 45 onto the other side of the sheet to be re-fed. After the exposure of the original on the first page is completed, the original is ejected to the original ejection tray 44.

FIGS. 1 and 2 are flowcharts showing the above-described processing operation according to the present invention of the copying operation when the document division reservation job mode and the single-sided / double-sided mode are set by the control unit of the copying apparatus. Is.

To summarize the above-mentioned processing in this copying apparatus, copying of all the originals on the first original placing table 21 of the RDH 11 in the state where the original split reservation job mode and the single-sided / double-sided mode are set. When the processing is completed, when the sheet in which the one-sided image of the original of the last page fed from the first original placing table 21 is copied on one side is stacked on the double-sided tray 45, the second side of the ADF 12 is The first page of the document on the document mounting table 39 is automatically fed and set at the document exposure position of the contact glass 13, the document is exposed, and the one-sided image is reversed from the double-sided tray 45 and re-fed. After the other side of the sheet is copied and the exposure of the first page of the original on the original exposure position is completed, the original is discharged to the first original placing table 21.

Further, when the copying process for the other side of the sheet on which the image of the original of the last page re-fed from the double-sided tray 45 is copied is completed, the first page of the RDH 11 of the original of the first page is completed. After the discharge to the document table 21 is completed, the document stack on the document table 21 is discharged to the document discharge tray 44.

Therefore, the remaining document stack (from the second page onward) on the second document mounting table 39 of the ADF 12 is read by the RDH1.
By directly transferring the document to the first document table 21 of No. 1, the copy process (reservation job) in the single-sided / double-sided mode can be continued for the document bundle, and the document transport control is complicated as in the conventional case. Therefore, it is not necessary to idle the original, and processing efficiency and reliability are improved.

The second original placing table 39 of the ADF 12
When there is no document on the upper side, the document stack on the first document mounting table 21 of the RDH 11 is placed on the document discharge tray 44 with the sheets on which the image of the document of the last page is copied are stacked on the double-sided tray 45. It can also be discharged.

In this case, when the original on the first original placing table 21 of the RDH 11 is started to be ejected to the original ejection tray 44 and then the original is placed on the second original placing table 39 of the ADF 12, After completing the discharge of the original on the original placing table 21 of No. 1 to the original discharge tray 44,
The first page of the original on the original mounting table 39 is automatically fed and set at the original exposure position of the contact glass 13, the original is exposed, and its one-sided image is reversed from the double-sided tray 45 and re-fed. The original is ejected to the original ejection tray 44 after the first original on the original exposure position is exposed and the other original of the sheet is copied.

As described above, even when the original is not placed on the second original placing table 39 of the ADF 12, the time until the original is placed is utilized and the first original placing table 21 of the RDH 11 is placed. Since the document is discharged onto the document discharge tray 44, the reserved job can be efficiently executed.

The second original placing table 39 of the ADF 12
Irrespective of the presence or absence of the original document, the original document bundle can be discharged to the original document discharge tray 44 after the copying process for the original document bundle on the first document placing table 21 of the RDH 11 is completed.

In this case, when the copy processing for all pages of the original on the first original placing table 21 of the RDH 11 is completed with the original split reservation job mode and the single-sided / double-sided mode set, When sheets of which the one-sided image of the last page document fed from the mounting table 21 is copied on one side are stacked on the double-sided tray 45, the image of the last-page document is copied to the double-sided tray 45. With the stacked sheets still stacked, perform the following processing.

That is, after the original bundle on the first original placing table 21 of the RDH 11 is ejected to the original ejection tray 44, A
The first page of the original on the second original placing table 39 of the DF 12 is automatically fed and set at the original exposure position of the contact glass 13, the original is exposed, and the single-sided image is inverted from the double-sided tray 45. After the other side of the re-fed paper is copied and the exposure of the first page of the original on the original exposure position is completed, the original is directly ejected to the original ejection tray 44.

Therefore, the remaining document stack (from the second page) on the second document mounting table 39 of the ADF 12 is read by RDH1.
When the transfer is completed, the copy processing (reservation job) in the single-sided / double-sided mode can be continued for the original bundle, and the same effect as described above can be obtained. Obtainable.

Next, the processing at the time of document ejection by the control unit of this copying apparatus will be described. A problem in executing reserved jobs one after another is the capacity of the document discharge tray 44. If the document is continuously ejected to the document ejection tray 44, the document ejection tray 44 becomes full, and if the document is ejected while ignoring it, the page order of the document becomes out of order, or the document is caught and damaged.

In order to prevent this, the document discharge tray 4
An ejected document detection sensor for detecting the presence or absence of the ejected document in 4 is installed, and when the ejected document is detected by the ejected document detection sensor, the number of ejected documents is counted by a predetermined counter (ejected document counter). When the count value reaches a predetermined value, the document discharge operation to the document discharge tray 44 is stopped.

After that, when the document on the document discharge tray 44 is removed and the discharged document is no longer detected by the discharged document detection sensor, the count value of the discharged document counter is cleared. As a result, the document can be discharged to the document discharge tray 44, and the discharging operation is restarted. The above-mentioned processing will be described more concretely below.

FIG. 22 is a flow chart showing an example of document discharge control when the reserved job is executed by the control unit of this copying machine. This routine is called and started by the main routine when the reserved job is running,
First, the presence or absence of discharged documents in the document discharge tray 44 is checked by the discharged document detection sensor, and if there is a discharged document in the document discharge tray 44, the discharge of the document to the document discharge tray 44 is immediately checked.

If there is no discharged original on the original discharge tray 44, the count value of the discharged original counter is cleared,
Further, after clearing a stop signal output flag described later, the discharge of the original document to the original document discharge tray 44 is checked, and when the original document is discharged to the original document discharge tray 44, the discharged original document counter is counted up (+1) and The count value is compared with a predetermined value, and if the count value has reached the predetermined value, the stop signal output flag is set and the process returns to the main routine.

FIG. 23 is a flow chart showing an example of the discharge operation control when the reserved job is executed by the control unit of this copying machine. This routine is also called and started by the main routine when the reserved job is running,
First, the presence or absence of a document on the first document placing table 21 of the RDH 11 is checked, and if there is no document on the first document placing table 21, the process returns to the main routine.

If there is a document on the first document table 21, it is checked whether or not the stop signal output flag is set, and if it is set, the process returns to the main routine. When the stop signal output flag is set,
Due to the output of the stop signal, the document discharge sequence for starting the document discharge operation to the document discharge tray 44 is not activated, so that a new document is not discharged to the document discharge tray 44.

On the other hand, if the stop signal output flag is not set, the document discharge sequence is activated. That is, when the document on the document discharge tray 44 is removed, the document discharge operation to the document discharge tray 44 can be performed until there is no document on the first document mounting table 21. It should be noted that when the sum of the count value of the document discharge counter and the number of documents on the first document placing table 21 of the RDH 11 that has completed the copying process reaches a predetermined value, the document discharge operation to the document discharge tray 44 is prohibited. You may do it.

[0142]

As described above, according to the present invention, it is possible to improve the processing efficiency when the document division reservation job mode and the single-sided / double-sided mode are set.

[Brief description of drawings]

FIG. 1 is a flow chart showing the above-described processing operation according to the present invention among copy operations when a document division reservation job mode and a single-sided / double-sided mode are set by the control unit of the copying apparatus shown in FIG. is there.

FIG. 2 is a flowchart showing the remaining processing.

FIG. 3 is an overall configuration diagram showing an example of a copying apparatus embodying the present invention.

4 is a circulation-type automatic document feeder (RDH) 11 shown in FIG.
It is a block diagram which shows.

FIG. 5 is also a non-circulating automatic document feeder (ADF) 1
It is a block diagram which shows 2.

FIG. 6 is a configuration diagram showing an example of a sorter that can also be inserted into the copying apparatus.

7 is a configuration diagram showing an example of a deflection pawl operating mechanism in the sorter 450 shown in FIG.

FIG. 8 is a diagram showing an arrangement of image forming areas obtained by cutting the photoconductor 7 of FIG. 3 at a seam portion and developing it.

9 is a plan view showing an example of an operation unit 70 provided in the copying apparatus main body 1 shown in FIG.

10 is a plan view showing an example of a mode setting screen displayed on the display unit 80 of FIG.

11 is a block diagram showing an example of a control unit of the operation unit 70 shown in FIG.

12 is a schematic configuration diagram including an example of a control system of the copying apparatus main body 1 shown in FIG.

FIG. 13 is a block diagram showing an example of control units of the RDH 11 and the ADF 12 in the same manner.

14 is a diagram showing a state of a document and a transfer sheet at the time of one-sided / one-sided copying using the RDH 11 in the copying apparatus shown in FIG.

FIG. 15 is a diagram showing a state of a document and a transfer sheet during single-sided / double-sided copying using the RDH11.

FIG. 16 is a diagram showing a state of a document and a transfer sheet at the time of double-sided / double-sided copying using the RDH11.

FIG. 17 is a diagram showing a state of an original and a transfer sheet at the time of one-sided / one-sided copying using the ADF 12.

FIG. 18 is a diagram showing a state of a document and a transfer sheet at the time of single-sided / double-sided copying using the ADF 12 in the same manner.

FIG. 19 is a diagram showing a state of a document and a transfer sheet at the time of double-sided / double-sided copying using the same ADF 12.

20 is a flowchart showing an example of a reserved job mode setting process by the control unit of the copying machine shown in FIG.

FIG. 21 is a flowchart showing an example of a reservation copy mode setting process.

FIG. 22 is a flowchart showing an example of document ejection control when executing a reserved job.

FIG. 23 is a flow diagram showing an example of discharge operation control when a reserved job is executed.

[Explanation of symbols]

1: Copying machine main body 3: Finisher 11: Recirculating automatic document feeder (RDH) 12: Non-circulating automatic document feeder (ADF) 13: Contact glass 21: First original feeding table 39: Second document placing table 44: Document ejection tray 70: Operation unit 101, 201, 300: CPU 102,221: ROM 103,222: RAM 400: Inversion unit 413: Finish tray 450: Sorter 570: Reservation key 571: Reservation setting key

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Hayakawa 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Co., Ltd. (72) Inventor Hiroshi Masuyama 1-3-6 Nakamagome, Ota-ku, Tokyo In stock company Ricoh (72) Inventor Hideki Tanaka 1-3-6 Nakamagome, Ota-ku, Tokyo Inside company Ricoh (72) Ryoichi Suzuki 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Company (56) Reference JP-A-3-196162 (JP, A) JP-A-4-88360 (JP, A) JP-A-60-43647 (JP, A) JP-A-63-180630 (JP, A) JP-A-2-204248 (JP, A) JP-A-3-26669 (JP, A) JP-A-3-38653 (JP, A) JP-A-3-163467 (JP, A) JP-A-3 -264434 (JP, A) JP-A-5-181333 (JP, A) Kaihei 9-146310 (JP, A) JP 62-222939 (JP, A) JP 7-181759 (JP, A) JP 59-218466 (JP, A) (58) Fields investigated ( Int.Cl. ⁷ , DB name) G03G 15/00 107 G03G 15/00 106 G03G 21/00 370-512 B65H 83/00-85/00

Claims (5)

(57) [Claims] 1. A paper feed tray capable of storing a large number of paper sheets,
Also, a sheet having the original image copied on one side is once stacked, and the other side has a double-sided tray for reversing and re-feeding so that the image can be copied, and it is set at the original exposure position. An image forming apparatus that performs a copying process of exposing a document and copying the image onto a sheet fed from the paper feed tray or the double-sided tray, and a first document mounting table on which a stack of documents to be copied is placed. After the originals on the original placement table are automatically fed one by one and set at the original exposure position, and the exposure of the originals on the original exposure position is completed, the originals are placed on the first original placement position. A circulation type automatic document feeder that discharges and circulates the document on a table, and a second document different from the first document table.
The original placing table, the originals on the original placing table are automatically fed one by one and set at the original exposing position, and after the exposure of the original on the original exposing position is finished, the original is placed on the original placing table. After the non-circulating automatic document feeder for discharging to the discharge tray and the copy process for the document stack on the first document table are completed, the second document is continuously operated in the same copy mode as the copy process. A document division reservation job mode setting means for setting a document division reservation job mode for performing a copy process on a document stack on the mounting table and a single-sided / double-sided mode for copying a single-sided image of two originals on both sides of one sheet In a copying machine having a single-sided / double-sided mode setting means for setting, in the state where the document division reservation job mode and the single-sided / double-sided mode are set, copying of all pages of the document on the first document mounting table is performed. When the processing is completed, the second original is fed when a sheet in which the one-sided image of the original of the last page fed from the first original placing table is copied on one side is stacked on the double-sided tray. The first page of the original on the mounting table is automatically fed and set at the original exposure position, the original is exposed, and the single-sided image is inverted from the double-sided tray and re-fed on the other side of the sheet. And a means for discharging the original onto the first original placing table after the exposure of the original of the first page on the original exposing position is completed. 2. The copying apparatus according to claim 1, wherein when the copying process on the other surface of the paper on which the image of the original of the final page re-fed from the double-sided tray is copied is completed, A copying apparatus comprising means for discharging a bundle of documents on the document mounting table to the document discharging tray after the discharge of the original document onto the first document mounting table is completed. 3. The copying apparatus according to claim 1, wherein when there is no document on the second document mounting table, sheets in which the image of the document of the last page has been copied are stacked on the double-sided tray. Then, the copying apparatus is provided with means for discharging the original stack on the first original mounting table to the original discharging tray. 4. The copying apparatus according to claim 3, wherein after the document on the first document table is started to be discharged to the document discharge tray, the document is placed on the second document table. In this case, after the document on the first document placing table is completely discharged to the document discharge tray, the first page of the document on the second document placing table is automatically fed to the document exposing position. , The original is exposed, the single-sided image is reversed from the double-sided tray and copied to the other side of the sheet to be re-fed, and the exposure of the original of one page on the original exposure position is performed. A copying apparatus comprising means for discharging the document to a document discharge tray after completion. 5. A paper feed tray capable of storing a large number of papers,
Also, a sheet having the original image copied on one side is once stacked, and the other side has a double-sided tray for reversing and re-feeding so that the image can be copied, and it is set at the original exposure position. An image forming apparatus that performs a copying process of exposing a document and copying the image onto a sheet fed from the paper feed tray or the double-sided tray, and a first document mounting table on which a stack of documents to be copied is placed. After the originals on the original placement table are automatically fed one by one and set at the original exposure position, and the exposure of the originals on the original exposure position is completed, the originals are placed on the first original placement position. A circulation type automatic document feeder that discharges and circulates the document on a table, and a second document different from the first document table.
The original placing table, the originals on the original placing table are automatically fed one by one and set at the original exposing position, and after the exposure of the original on the original exposing position is finished, the original is placed on the original placing table. After the non-circulating automatic document feeder for discharging to the discharge tray and the copy process for the document stack on the first document table are completed, the second document is continuously operated in the same copy mode as the copy process. A document division reservation job mode setting means for setting a document division reservation job mode for performing a copy process on a document stack on the mounting table and a single-sided / double-sided mode for copying a single-sided image of two originals on both sides of one sheet In a copying machine having a single-sided / double-sided mode setting means for setting, in the state where the document division reservation job mode and the single-sided / double-sided mode are set, copying of all pages of the document on the first document mounting table is performed. When the processing is completed, when a sheet in which the one-sided image of the original of the last page fed from the first original placing table is copied on one side is stacked on the double-sided tray, After stacking the sheets on which the images of the originals of the last page have been copied, the original stack on the first original placing table is discharged to the original discharge tray, and then 1 on the second original placing table. Automatically feed the original of the page and set it at the original exposure position,
The original is exposed and its one-sided image is reversed from the double-sided tray to be copied on the other side of the sheet to be re-fed, and
A copying machine comprising means for discharging the original onto the original discharge tray after the exposure of the first page of the original on the original exposure position is completed.