JPS6129858A - Paper discharge control device for electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To discharge copy paper with the image side faced downward from below in order of pages with respect to originals with the image side faced downward which are imposed from below in order of pages by using properly an upsetting means and intermediate tray and controlling the discharge of the copy paper according to copying modes. CONSTITUTION:The copy paper P is not upset by the upsetting means 13 and is fed to a sorter 2 without being passed through the intermediate tray 14 in the stage of a one-side mode. The paper P is copied with both images of one original on one side and after the paper is upset by the means 13, the paper is fed through the tray 14 and is again copied with the image of the other original on the other surface; thereafter the paper is discharged to the tray 24 for receiving the copy without being upset by the means 13 and without being passed through the tray 14 in a double-side mode. The image of one original is copied on one side of the paper P and after the paper P is upset by the means 13, the paper is discharged to the tray 24 without being passed through the tray 14 in an upsetting mode. The paper with the image side faced downward is thus discharged from below in order of pages in each mode.

Description

TECHNICAL FIELD The present invention relates to an electronic copying machine paper discharge control device for controlling copy paper discharge in an electronic copying machine.

2. Description of the Related Art As an electronic copying machine equipped with an automatic document feeder, there is known an electronic copying machine that, when copying an image onto one side of copy paper, ejects the copy paper with the image side facing up.

However, this electronic copying machine has the disadvantage that in order to place copy paper into pages in the copy receiving tray, the originals must be placed on the original set table in the reverse order of the pages. There is.

Purpose The purpose of the present invention is to prevent copy paper from being placed in the copy receiving tray with the image side facing down when the original is placed with the image side down on the original set table of the automatic document feeder. An object of the present invention is to provide an electronic copying machine paper discharge control device that can arrange pages from pages to pages.

Structure The present invention relates to an electronic copying machine equipped with an automatic document feeder that automatically feeds a plurality of documents stacked on a document set table onto a contact glass of an exposure device, as shown in FIG. a document set detection means for detecting whether or not a document is set on the document center of the automatic document feeder; a reversal mode memory control means for receiving an output signal from the document set detector; and a reversal mode memory control means for receiving an output signal from the document set detecting means. A reversing mode storage means for storing whether or not the reversing mode is set in response to a control signal of the means, and a reversing means for reversing and ejecting the copy paper when the reversing mode storing means stores the reversing mode. The reversal mode storage control means sets the reversal mode storage means when the original is detected by the original set detection means, and sets the reversal mode storage means when the original is not detected by the original set detection means. It is characterized by being reset.

Next, a specific example of the configuration of the present invention will be explained based on the drawings.

In FIG. 2, reference numeral 1 indicates an electronic copying machine. A printer 2 is disposed adjacent to the electronic copying machine 1. The exterior plate 1a of the electronic copying machine 1 and the exterior plate 2a of the computer 2 are arranged so as to be substantially in contact with each other.

A drum-shaped photoreceptor 3 is arranged inside the exterior plate 1a. This photoreceptor 3 is rotated in the direction of the arrow by a driving means (not shown). Around the photoreceptor 3, there is a charging device 4, an eraser 5, an exposure device 6, a developing device 7, a transfer device 8, a copy paper supply device 9, a copy paper separation and conveyance device 1.
0, a fixing device 11, a copy paper conveying means 12 for conveying the copy paper P on which the toner image has been fixed, a reversing means 13 for reversing the copy paper P, an intermediate tray 14 for temporarily storing the copy paper P, and a static eliminator 15. , a cleaning device 16, etc. are arranged at predetermined positions, and charge, expose, develop, transfer, etc.
The steps of fixing, neutralizing, and cleaning can be repeated.

The exposure device 6 includes a contact glass 6a provided on the upper surface of the exterior plate 1a, an exposure lamp 6b for illuminating the image surface of an original placed on the contact glass 6a, and an exposure lamp 6b for illuminating the image surface of the original placed on the contact glass 6a. It consists of a lens 6C that forms an image on the image, a first mirror 6d, and a second mirror 6e. Above exposure lamp 6
b in the direction of the arrow, and in synchronization with this, the lens 6
By moving C in the direction of the arrow, image light from the entire image surface of the document is imaged onto the photoreceptor 3. The exposure lamp 6b
A scanner sensor 17 for detecting the number of scans of a scanning optical system consisting of a lens 6C and a lens 6C is arranged near the home position of the exposure lamp 6b. The exposure device 6 includes a lens 6c, a first mirror 6d, and a second mirror 6.
The copy magnification can be changed by changing the position of e.

The copy paper supply device 9 includes a plurality of paper feed trays 9a,
It consists of a feeding means 9b consisting of a feeding roller and a guide plate for feeding the copy paper P in these paper feeding trays 9a between the photoreceptor 3 and the transfer device 8.

An automatic document feeder 18 is arranged above and near the contact glass 6a.

This automatic document feeder 18 includes a document setting table 18a,
A document feeding means 1°8b consisting of a plurality of rollers for feeding a plurality of documents placed on the document setting table 18a one by one from the bottom toward the lath 6a and a driving means for rotating these rollers; , a conveyor bell) 18c disposed above the contact glass 6a, and this conveyor bell)
3 above-mentioned document sets, each of which includes two belt conveyance rollers 18d for moving the belt conveyance rollers 18c, and a belt drive means (not shown) for rotating these belt conveyance rollers 18d. The original placed on the table 18a is inserted between the conveyor belt 18c and the contact glass 6a by the original feeding means 18b, and is conveyed by the conveyor belt 18c to a predetermined position on the contact glass 6a. The exposure device 6
After the image light of the original document is imaged on the photoreceptor 3, it is conveyed again to the outside of the contact glass 6a by the conveyor belt 18c. A document receiving tray 18e is arranged in the document conveyance direction of the conveyance bell 18c, and the document receiving tray 18e is fixed to the upper surface of the exterior plate 1a.

The document conveyed from above the contact glass 6a by the conveyance bell 18c is accommodated in the document receiving tray 18e.

The document insertion table 19 is placed so as to cover the conveyance bell) 18c.
is located. A turn roller 20 is arranged between the document feeding means 18b and the conveyance belt 18c,
A pinch roller 21 is pressed onto the turn roller 20. These turn rollers 20 and pinch rollers 2
A manual document insertion slot 19a for manually inserting a document is formed between the document insertion table 1 and the document insertion table 19. When a manual original is inserted into the manual original insertion slot 19a using fingers while being guided by the original insertion table 19, the original is transferred between the turn roller 20 and the pinch roller 2 due to the rotational force of the turn roller 20.
The contact glass 6a is held between the contact glass 6a and the conveyor belt 18c, and is conveyed by the conveyor belt 18C in the same manner as described above.

Near the document setting table 18a, there is a first document set detection means 2 comprising a light emitting element 22a and a light receiving element 22b for detecting whether or not a document is set on the document setting table 18a.
2 is placed. Further, near the document insertion table 19, a second document set detection means 23 consisting of a light emitting element 23a and a light receiving element 23b for detecting whether or not a document is set thereon is arranged. .

The copy paper conveying means 12 includes a feeding roller 12a for feeding the copy paper P sent from the fixing device 11, and a reversing means 13 for transferring the copy paper P fed by the feeding roller 12a.
a guide plate 12b that guides the copy paper P that has passed through the reversing means 13, a switching claw 12c that switches the direction of the copy paper P that has passed through the reversing means 13, a guide plate 12d that guides the copy paper P guided by the switching claw 12c upward, and a feeding roller. 12e, a guide plate 12f that guides the copy paper P guided by the switching claw 12c in the direction of turn 2, a belt conveyance roller 12g1 (conveyance bell) 12h, and a belt conveyance roller 12 closest to turn 2.
It consists of a switching claw 121 which is disposed on the turn 2 side of g and guides the copy paper P to turn 2 or the intermediate tray 14.

A copy receiving tray 24 is arranged in the conveyance direction of the feed roller 12e. The copy paper P guided upward by the switching claw 12C is discharged onto the tray 24 by the guide plate 12d and the feeding roller 12e. A copy paper discharge sensor 25 is arranged near the guide plate 12d, which includes a movable piece that is displaced by the copy paper P and a sensor that detects the displacement of this movable piece.

Copy paper P guided downward by the switching claw 12i
is accommodated in the intermediate tray]4. This intermediate tray 14 is rotatably arranged. A feed roller 27 is arranged above the intermediate tray 14. A tray pushing means 28 is arranged below the intermediate tray 14. The tray push-up means 28 pushes up the intermediate tray 14 when feeding the copy aP stored in the intermediate tray 14, and presses the copy paper P stored in the intermediate tray 14 against the feeding roller 27. Copy paper P pressed against this feed roller 27
is the rotational force of the feed roller 27.
The image is sent to the feeding means 9b, and is fed between the photosensitive element 3 and the transfer device 8 by this feeding means 9b. An intermediate tray sensor 29 consisting of a light emitting element and a light receiving element is arranged near the intermediate tray 14 to detect whether or not a copy H1P is accommodated therein.

The reversing means 13, as shown in FIGS. 3 to 5,
A main reversing roller 13a and two reversing rollers 13b displaceably pressed against the upper part of the main reversing roller 13a.

13c, two reversing guide plates 13d disposed above these, a reversing roller 13e disposed above these reversing guide plates 13d, and this reversing roller 13.
It consists of a return roller 13f, etc., which is arranged so as to be able to come into contact with and be separated from e.

The reversing rollers 13b and 13c are the reversing rollers 13b and 13c.
g and 13h, so that they can be placed close to each other as shown in Figure 3 and in positions far apart from each other as shown in Figures 4 and 5. ing. The above reversed renoids 13g and 13h are OFF.
When this is the case, the reversing rollers 13b and 13c approach each other, and when the reversing solenoids 13g and 13h are ON, the main reversing rollers 13b and 13c are separated from each other.

The return roller 13f can be displaced by a return solenoid 13i. This return solenoid 13i is ON
In this case, the return roller 13f is pressed against the reverse rotation roller 13e, and when the return solenoid 13i is OFF, the return roller 13f is separated from the reverse rotation roller 13e.

A reversal sensor 30 is arranged near the main reversing roller 13a and the reversing roller 13b to detect whether or not there is copy paper P between them.

The reversal sensor 30 includes a movable piece 30a that is displaced by the copy paper P, and a photointerrupter 30b that detects the displacement of the movable piece 30a.

As shown in FIG. 4, when there is no copy paper P between the main reversing roller 13a and the reversing roller 13b in a state where the reversing rollers 13b and 13c are arranged at positions separated from each other, the lower part of the movable piece 30a is photo interrupter 30
When the reversing sensor 30 is located between the light emitting element and the light receiving element of b and is OFF, and there is copy paper P between the main reversing roller 13a and the reversing roller 13b as shown in FIG. The movable piece 30a is displaced by this copy paper P, and the lower part of the movable piece 30a is separated from between the light emitting element and the light receiving element of the photointerrupter 30b, and the reversal sensor 30 is turned on.

If not in reverse mode, reverse solenoid 13h, 1
3g is OFF, and the reversing rollers 13b and 13C are the third
As shown in the figure, the main reversing roller 13a and the reversing roller 1
3b, the copy paper P inserted between the reversing guide plate 13
Instead of going in the direction d, it is inserted between the main reversing roller 13a and reversing rollers 13b and 13c, and is sent in the direction of the switching claw 12c.

When in the reversal mode, the reversal solenoid 13h, 1
3g is ON, the reversing rollers 13b and 13C are separated from each other as shown in FIGS. 4 and 5, and the copy paper P inserted between the main reversing roller 13a and the reversing roller 13b is The copy paper P is fed by the reversing rollers 13a and 13b while being guided by the reversing guide plate 13d, and the leading edge of the copy paper P passes between the reversing roller 13e and the return roller 13f separated from the reversing roller 13e. The rear end is separated from between the normal reversing roller 13a and the reversing roller 13b. At this point, the reversal sensor 3o is turned from ON to OFF, so the return solenoid 131 is turned ON, and the return roller 13f moves in the direction of the reverse roller 13e, which grips the copy paper P7. In this state, the reverse roller 13e Since the return roller 13f is rotated in the direction of the arrow in FIG. 4, the copy paper P is inserted between the main reversing roller 13a and the reversing roller 13c and is sent in the direction of the switching claw 12C by these. The copy paper P fed by the main reversing roller 13a and the reversing roller 13C has its upper and lower surfaces reversed when inserted between the main reversing roller 13a and the reversing roller 13b.

A plurality of copy sheets P are successively placed in the reversing means 13 12
), the preceding copy paper P is sent by the reversing roller 13e and the return roller 13f, is inserted between the main reversing roller 13a and the reversing roller 13c, and is held between them. Afterwards, the timing of feeding the copy paper P is adjusted so that the following copy paper P is inserted between the main reversing roller 13a and the reversing roller 13b.

The electronic copying machine 1 operates in one-sided mode, two-sided mode, composite mode, and inversion mode.

The above-mentioned single-sided mode refers to a mode in which an image of one original is copied onto only one side of the copy gP. In the single-sided mode, the copy paper P is not reversed by the reversing means 13 and is sent to the sorter 2 without passing through the intermediate tray 14.

The double-sided mode refers to a mode in which the image of one original is copied onto one side of the copy paper P, and the image of another original is copied onto the other side of the copy paper P.

In the case of double-sided mode, the copy paper P copies the image of one original on one side, is reversed by the reversing means 13, passes through the intermediate tray 14, and then copies the image of the other original on the other side again. After copying, the sheet is not reversed by the reversing means 13 and is ejected to the copy receiving tray 24 without passing through the intermediate tray 14.

The above-mentioned compositing mode refers to a mode in which images of two originals are superimposed and copied onto one side of the copy paper P.

In the case of composition mode, the copy paper P is first
After copying the image of one document onto one side of the copy paper P, passing through the intermediate tray 14 without being reversed by the reversing means 13, and then copying the image of another document again onto the one side of the copy paper P that has been copied. without being reversed by the reversing means 13, and
The copy receiving paper is ejected to the tray 24 without passing through the intermediate tray 14.

The above-mentioned reversal mode means that after the image of one original is copied onto one side of the copy paper P, the copy paper P is reversed by the reversing means 13, and then the copy receiver discharges the paper to the tray 24 without passing through the intermediate tray 14. refers to mode.

The sorter 2 includes a horizontal conveyance means 2b, which is disposed on the inside upper part of the exterior plate 2a, and conveys copy paper P in the horizontal direction, which is conveyed by the conveyance bell (12h) of the electronic copying machine 1;
Copy paper P conveyed by this horizontal conveyance means 2b
a direction switching guide plate 2C that directs the direction switching guide plate 2C downward; a vertical conveyance means 2d disposed below the direction change guide plate 2C and conveying the copy paper P vertically downward; and this vertical conveyance means 2d.
A plurality of bins 2e are arranged at predetermined intervals vertically near the bins 2e, and a deflection cam 2f is arranged corresponding to these bins 2e to change the direction of the copy paper P of the vertical conveying means 2d to the bins 2e. and the vertical conveyance means 2d and the bin 2e.
The deflection cam 2f is vertically movably arranged between the
and a bin switching means 2g for guiding copy paper P whose direction can be changed to a predetermined bin 2e.

The horizontal conveyance means 2b includes a plurality of conveying rollers 2b1 and a guide plate 2b2. The vertical conveyance means 2d includes 2
2 belt conveying rollers 2dl, a conveying belt 2d2 attached to these, and a conveying belt 2d2 for carrying the copy paper P.
It consists of a suction fan 2d3 that sucks in the direction of d2. The bin switching means 2g includes a guide plate 2g2 provided on a holding plate 2gl that is raised and lowered by a drive means (not shown);
It consists of a feed roller 2g3 that feeds the copy paper P to the bin 2e. On the holding plate 2gl of the bin switching means 2g, a copy discharge sensor 31 consisting of a movable piece and a sensor that detects when the movable piece is pushed by the copy paper P and is displaced is arranged.

The operation of the sorter 2 includes a sort mode and a stack mode.

The above-mentioned sorting mode means that in the single-sided mode of the electronic copying machine 10, a plurality of copy sheets P per one document are stored in each bin 2.
This refers to a mode in which data is sequentially accommodated in e.

The stack mode refers to a mode in which a plurality of copy sheets P for one document are stored in one bin 2e in the single-sided mode of the electronic copying machine 10.

A copy receiving tray 32 is arranged on the upper surface of the exterior plate 2a of the sorter 2. This copy receiver has a tray 32 and a feed roller 2 closest to the electronic copying machine 1 of the horizontal conveyance means 2b.
A switching claw 33 and a feeder 90-ra 34 are arranged between the bl and the bl. When the copy paper P is jammed in the sorter 2, the switching claw 33 switches the following copy paper P to the tray 32.
The copy receiver is discharged onto the tray 32 in the direction of. The copy receiver is placed on the tray 32 and the copy paper P is manually placed in the sorter 2.
A manual copy tray 35 is provided for inserting the copy into the machine. Copy paper P discharged to the copy receiving tray 32
After removing the jammed copy paper P from sorter 2,
When inserted from the manual copy tray 35, the specified bin 2e
be accommodated in.

FIG. 6 shows an operation display panel 36 provided on the upper surface of the exterior plate 1a of the electronic copying machine 1, which will be explained next.

The operation display panel 36 has information on whether to turn the power ON or OFF.
' Power key 37, turn this power key 37 ON or O
Displays the power display 38 that displays FF, the print key 39 that starts copying, the numeric keypad 40 that sets the number of copies, and the value of the number of copies set counter that counts the values set by these numeric keys 40. Number of copies set counter display 41. A copy execution counter display 42 that displays the value of a copy execution counter that counts the number of copies that have been made, a clear display that clears the copy one count set counter and the copy one execution counter and instructs to interrupt the copy operation. /stop key 43, inversion key 44 for selecting the inversion mode, inversion mode display 45 for displaying ON or OFF of this inversion key 44, composition key 46 for selecting composition mode, displaying ON or OFF of this composition key 46 A combination mode display 47 for selecting the duplex mode, a duplex key 48 for selecting the duplex mode, a duplex mode display 49 for displaying whether the duplex key 48 is ON or OFF, a stack key 50 for selecting the stack mode, and an ON or OFF status for the stack key 50. Stack mode indicator 51 to display, sort key 52 to select sort mode, ON or O of this sort key 52
A sort mode display 53 that displays FF, two density adjustment keys 54 that adjust the copy density, and a density display 55 that displays the density set by these density adjustment keys 54.
, an interrupt key 56 for performing an interrupt copy operation, and an interrupt indicator 57 that displays whether the interrupt key 56 is ON or OFF.
, a document 2 display 58 that displays the mode during back side copying in duplex mode and second side copying in composite mode, and a paper feed tray designation key that selects the paper feed tray 9a containing copy paper P. 59, Specified paper feed tray 9
A specified paper feed tray display 60 that displays a, a paper feed size display 61 that displays the size of the copy paper P in the paper feed 9a, a magnification key 62 for selecting the copy magnification, and which of these magnification keys 62 A magnification display 63 and the like are provided to display whether the power is turned on.

FIG. 7 shows the control means of the electronic copying machine paper discharge control device of the present invention, which will be explained next.

The above power key 37, print key 39, numeric keypad 40,
Clear/stop key 43, reverse key 44, composite key 46, double-sided key 48, stack key 50, sort key 5
2. Information on the first document set detection means 22, second document set detection means 23, reversal sensor 30, intermediate tray sensor 29, scanner sensor 17, and other keys and sensors is provided to the input interface circuit 64. This input interface circuit 64 is connected to a microcomputer (hereinafter referred to as "microcomputer") 650 input board.

An output interface circuit 66 is connected to the output port of the microcomputer 65. This output interface circuit 66 includes an inversion mode indicator 45, a composite mode indicator 47, a duplex mode indicator 49, a stack mode indicator 51, a sort mode indicator 53, and an inversion mode indicator 47.
g, 13h, return valve 131, and other loads are connected.

The RANK of the microcomputer 65 includes a reversal key flag that stores the rise 9 of the reversal key 44, a reversal mode flag that stores the reversal mode, a composite key flag that stores the rise of the composite key 46, a composite mode flag that stores the composite mode, A double-sided key flag that stores the start-up of the double-sided key 48, a double-sided mode flag that stores the double-sided mode, a stack key flag that stores the start-up of the stack key 50, a stack mode 7 lag that stores the stack mode, and a stand-up of the sort key 52. A sort key flag for storing upper side, a sort mode flag for storing the sort mode, a document ON flag for storing the rise of the detection signal of the first document detection means 22, and a fall of the detection signal of the first document detection means 22. A document OFF' flag is provided to store the OFF' flag.

Next, the operation of the electronic copying machine paper discharge control device of the present invention will be explained based on the flowcharts shown in FIGS. 8 to 12.

When the power key 37 is turned on, the microcomputer 65's RO
Operations are executed according to the programs stored in M and shown in the flowcharts of FIGS. 8 to 12.

First, in step (2), initial settings are performed, that is, the RAM of the microcomputer 65 is cleared, the modes of the input interface circuit 64 and the output interface circuit 66 are set, and input/output ports are cleared.

Next, in step (2) it is determined whether or not the composite key 46 is ON, and if the composite key 46 is ON, it is determined in step (2) whether or not the composite key flag is -1. If the composite key flag is not -1 in step ■, the composite key flag is set to 1 in step ■, and then the composite mode flag is set to -1 in step ■.
If the combination mode flag is not -1 in step (2), it is determined in step (2) whether or not the double-sided mode flag is -1. Double-sided mode flag = in step ■
If it is not 1, it is the combination mode, so in step (2) the combination mode flag is set to 1, and in step (2) the combination mode display 47 is turned on, and then the process goes to step [phase].

If the composite key 46 is not turned on in step ■, step ■
After setting the composite key flag to 0, jump to step [phase].

If the composition mode flag is -1 in step (2), it is determined in step [phase] whether or not the intermediate tray sensor 29 is ON. If the intermediate tray sensor 29 is not ON in step [phase], it is not the combining mode, so the combining mode flag is set to 0 in step 0, the combining mode indicator 47 is turned OFF in step @, and the process jumps to step [phase]. If the intermediate tray sensor 29 is ON in step [phase], the process jumps to step [phase] because it is in the middle of the composition mode.

If the duplex mode flag is -1 in step (2), it is determined in step 0 whether or not the intermediate tray sensor 29 is ON. If the intermediate tray sensor 29 is not ON in step @, the duplex copy mode is not in effect, so the duplex mode flag is set to 0 in step 0, the duplex mode indicator 49 is turned OFF in step [phase], and the process returns to step (2). If the intermediate tray sensor 29 is ON in step 0, the duplex mode is in progress, so the process jumps to step [Yes].

Next, in step [phase], it is determined whether the double-sided key 48 is ON, and if the double-sided key 48 is ON, it is determined in step 0 whether the double-sided key flag is -1. Step 0
If the double-sided key flag is not -1, the double-sided key flag is set to 1 in step [phase], and then it is determined in step [phase] whether the double-sided mode flag is -1. If the double-sided mode flag is not -1 in step [phase] (23), it is determined whether the composite mode flag = 1 in step [phase].The composite mode flag = 1 in step [phase].
If it is not 1, it is duplex mode, so the duplex mode flag is set to 1 in step [phase], the duplex mode indicator 49 is turned on in step [phase], and the inversion mode flag is set in step 0 to not give priority to the inversion mode. After setting it to O, turn off the inversion mode display 45 in step [phase],
Next, go to step 0.

If the double-sided key 48 is not ON in step [phase], the double-sided key flag is set to 0 in step [phase], then K, step [
Jump to [phase]. If the duplex mode flag is -1 in step [phase], it is determined in step [phase] whether or not the intermediate tray sensor 29 is ON. If the intermediate tray sensor 29 is not ON in step [phase], the duplex mode is not set, so the duplex mode flag is set to 0 in step [phase], the duplex mode indicator 49 is turned OFF in step [phase], and the original is set in step [phase]. After setting the ON flag to O,
Step hejambup. Original is turned on in step [phase]
The flag is set to O if the original is placed on the original setting table 18a.
This is because if it is set to , the inversion mode will be set preferentially when resetting the duplex mode. step [phase]
If the intermediate tray sensor 29 is ON, the screen mode is in the middle, so the process jumps to step [phase].

If the composition mode flag is -1 in step [phase], it is determined in step [phase] whether or not the intermediate tray sensor 29 is ON. Intermediate tray sensor 2 in step [phase]
If 9 is not ON, it is not the synthesis mode, so the synthesis mode flag is set to 0, and the synthesis mode display 47 is turned OFF in step [phase], and then the process returns to step @. If the intermediate tray sensor 29 is ON at the step, the process jumps to the step [Stock] because it is in the middle of the composition mode.

Next, it is determined whether or not the stack key 50 is ON in step [STEP], and if the stack key 50 is ON, it is determined in step [PHASE] whether or not the stack key flag is -1. If the stack key 7 lag is not 1 in step (2), the stack key 7 lag is set to 1 in step [stock], and then it is determined whether the stack mode flag = 1 in step [phase]. If stack mode flag = 1 in step [phase], sort mode flag -1 in step ■
Determine whether or not. If the sort mode is not -1 in step [phase], it is the stack mode, so the stack mode flag is set to 1 in step [phase], the stack mode indicator 51 is turned ON in step [phase], and the reverse mode is set. In order not to give priority to the inversion mode, the inversion mode flag is set to 0 in step [phase], the inversion mode indicator 45 is turned off in step O, and the process then proceeds to step 0.

If the stack key 50 is not ON in step 0, after setting the stack key flag to O in step ■, step [
Jump to [phase]. If the stack mode flag is -1 in step [phase], the stack mode flag is set to O in step 0, the stack mode display 51 is turned off in step 0, and the document ON flag is set to 0 in step @, and then Jump to step [phase]. Step @
The reason why the document ON flag is set to 0 is to set the reverse mode preferentially when the stack mode is reset if the document is set on the document setting table 18a.

If the sort mode flag is -1 in step [phase], jump to step @.

Next, in step [phase], it is determined whether or not the sort key 52 is ON, and if the sort key 52 is ON, step O
It is determined whether the sort key flag is -1 or not. If the sort key flag is not -1 in step O, the sort key flag is set to 1 in step @, and then it is determined in step O whether the sort mode flag is -1. Step [
phase], if the sort mode flag is not -1, it is determined in step O whether the stack mode flag is equal to 1. If the stack mode flag is not 1 in step [stock], it is the sort mode, so the sort mode flag is set to 1 in step ■, and the sort mode indicator 53 is set to O in step @.
In order to not give priority to the inversion mode, the inversion mode flag is set to 0 in step 0, the inversion mode display 45 is set to 0F11i'' in step (3), and then the process goes to step O.

If the sort key 52 is not ON in step [phase], the sort key flag is set to O in step 0 and then jumps to step [stock]. If the sort mode flag = 1 in step [phase], step [stock] ] to set the sort mode flag to 0, set the sort mode display 53 to OFF in step O, and set the document ON flag to 0 in step 0, and then jump to step [phase]. In step [phase], set the document ON flag to 0. The reason why it is set to 0 is to set the reverse mode preferentially when resetting the sort mode if the document is set on the document setting table 18a.If the stack mode is -1 in step [phase],
step [phase] jump.

Next, in step [phase], it is determined whether or not the reversal key 44 is ON, and if the reversal key 44 is ON, it is determined and determined in step O whether or not the reversal key flag is -1. If the inversion key flag is not -1 in step Φ, the inversion key flag is set to 1 in step O, and then it is determined in step [phase] whether the inversion mode flag is -1. If the inversion mode flag is not -1 in step [phase], the inversion mode flag is set to 1 in step O, the inversion mode indicator 45 is turned on in step [phase], and then the process proceeds to step [phase].

If the inversion key 44 is not ON in step [stock], the inversion key flag is set to O in step 0, and then the process jumps to step [stock]. If the reversal mode flag is 1 in step 1, the reversal mode flag is set to 0 in step [phase], the reversal mode display 45 is turned off, and then the program jumps to step [stock].

In step [phase], the first document set detection means 22 is turned ON.
The first document set detection means 22
is ON, the document OFF flag is set to 0 in step e, and then it is determined in step [phase] whether or not the document ON flag is -1. Original ON flag -1 at step [phase]
If not, the document ON flag is set to 1 in step O, and then it is determined in step @ whether the stack mode is 1 or not. If the stack mode flag is not -1 in step ■,
Determine whether the sort mode flag is -1 in step 0, and if the sort mode flag is not -1, step [phase]
It is determined whether the double-sided mode flag=1 or not. If the duplex mode flag is not 1 in step [phase], the reversal mode flag is set to 1 in step [phase], the reversal mode indicator 45 is turned ON in step [phase], and then step [stock] is set.
go to

In step [phase], the first document set detection means 22 is turned ON.
If not, the document ON flag is set to 0 in step @, and then it is determined in step [phase] whether the document OFF flag is -1. If the document OFF flag is not -1 in step [phase], the document OFF flag is set to 1 in step [phase], the reverse mode flag is set to 0 in step [stock], and the reverse mode indicator 45 is set in step [phase]. After turning OFF, jump to step @.

If the document ON flag is -1 in step [phase], if the stack mode flag is -1 in step @, if the sort mode flag = 1 in step O, in step O
If the duplex mode flag is -1 in step [phase] and if the original OFF flag is -1 in step [phase], the process jumps to step [stock].

At step @, it is determined whether or not the print key 39 is OK for reception. If the print key 39 is OK for reception, it is determined at step O whether or not the print key 39 is ON. If the print key 39 is not OK in step [phase] and if the print key 39 is not turned on in step O, the process returns to step (2).

If the print key 39 is ON in step O, it is determined in step 0 whether the reversal mode flag is -1, and if the reversal mode flag = 1, the reversal solenoids 13g and 13h are turned ON in step e, and step A copy operation is performed in [phase]. If the inversion mode flag is not -1 in step [Yes], jump to step [Phase].

Next, in step O, it is determined whether or not the inversion mode 1° flag is -1, and if the inversion mode flag is -1, step [
phase], it is determined whether the reversal sensor 30 is ON. If the reversal sensor 30 is ON in step [phase], the return solenoid 134 is turned OFF in step [phase], and if the reversal sensor 30 is not ON in step [phase], the return solenoid 13i is turned ON in step [phase]. Go to step ■. If the inversion mode flag is not -1 at step @, step [phase] is shifted.

In step [phase], it is determined whether or not the number of copies set - the number of copies to be executed is satisfied, and if it is not the number of copies set - the number of copies to be executed, the process returns to step [phase].

If the number of copies set = the number of copies to be executed in step [phase], the return solenoid 137 is turned off in step [stock].
F, and after turning off the reversing solenoids 13g and 13h in step 0, it is determined in step [phase] whether or not the operation is finished, and if the operation is not finished, the process returns to step (2).

FIG. 12 shows the main part of another example of a flowchart for explaining the operation of the electronic copying machine paper discharge control device of the present invention.

The example shown in Figure 12 is a step [phase] and a step [phase]
It is obtained by inserting a step [phase] between.

If the double-sided mode flag is not 1 in step ■, it is determined in step [phase] whether the numeric keypad 40 manual force = 1, and if the numeric keypad 40 manual force = 1, the inversion mode flag is set to -1 in step [phase]. , turn on the inversion mode indicator 45
shall be. If numeric keypad 40 manual force = 1 at step [phase], jump to step @.

The flowchart shown in FIG.
This is to set the reversal mode only when making two copies of paper.

According to the invention, when originals are placed on the automatic document feeder's original setting tray with the image side facing down in page order from the bottom, the copy paper is placed in the tray with the image side facing down in page order from the bottom. pages) can be arranged in order.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a schematic diagram showing an electronic copying machine paper discharge control device as an embodiment of the present invention, and FIGS. 3 to 5 show a reversing means of the same device. Fig. 6 is a plan view showing the operation display panel of the same device;
FIG. 7 is a block diagram showing the control means of the above device, and FIGS. 8 to 12 are flowcharts for explaining the operation of the same device.

Claims (1)

[Claims] In an electronic copying machine equipped with an automatic document feeder that automatically feeds multiple originals stacked on the document settable onto the contact glass of the exposure device, an original set detection means for detecting whether or not an original is set; an inversion mode storage control means for receiving an output signal from the original setting detection means; and a reversing means for reversing and ejecting the copy paper when the reversing mode storing means stores the reversing mode, and the reversing mode storage control means is configured to detect a document set. An electronic copying machine paper discharge control characterized in that a reversal mode storage means is set when the original is detected by the electronic copying machine, and the reversal mode storage means is reset when the original set detection means does not detect an original. Device.