JPS58132253A - Both-face copying device provided with automatic original feeding device - Google Patents

Abstract

PURPOSE:To eliminate the failure of copy due to erroneous setting or originals, by providing a sheet original insertion tray for both-face copy and a sheet original insertion tray for single-face copy and constituting the device so that the copy is permitted when originals are inserted to the tray according with a copy mode. CONSTITUTION:An original feeding device 37 for automatic both-face copy is provided with the first sheet original insertion tray 38 for both-face copy, the second sheet original insertion tray 39 for single-face copy, indicator lamps 42 and 48 which are provided in sheet original insertion trays 38 and 39, respectively and indicate original trays for insertion of sheet originals in accordance with selection of the copy mode, and sensors S1 and S2 as original detecting means which are provided in the first and the second sheet original insertion trays 38 and 39, respectively. The device is so constituted that the copy is permitted when originals are inserted to the sheet original insertion tray 38 or 39 conforming to the copy mode.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double-sided copying apparatus with an automatic document feeder, and more particularly to a double-sided copying apparatus with an automatic document feeder equipped with two or more different sheet document insertion trays.

Conventionally, this type of copying apparatus includes a method in which a document is circulated and inverted within a single document insertion tray, and a method in which a document is provided with two different document insertion trays.

However, in an apparatus having two or more different document insertion trays, there is a drawback that a user may erroneously change the copy mode and insert the document into the wrong document insertion tray, resulting in a copying error.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a double-sided copying device with an automatic document feeder that has a simple structure and is configured to prevent copying errors due to incorrect loading of documents. It is an object.

In the present invention, in order to achieve the above-mentioned objects, am insertion instruction means are provided in accordance with the copy mode of the sheet original insertion tray for double-sided copying and the sheet original insertion tray for single-sided copying, respectively, and A structure is adopted in which copying is not possible unless the original is inserted.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Figure 1 is a schematic diagram of a copying machine equipped with an automatic paddle feeder and equipped with a sorter.

The copying apparatus 1 according to the present invention has a transparent original table 2 on its upper surface, and below it are an original SWA bright lamp 3, movable mirrors 4, 5, a fixed in-mirror lens 6, a mirror 7, and a photosensitive A drum 8 is provided. When a copy button (not shown) is pressed, the photosensitive drum 8 begins to rotate counterclockwise in FIG.
Movable mirror 4. ! S moves in the direction indicated by arrow A in the figure (two directions). When the photosensitive drum 8 completes a predetermined rotation, a signal to start exposure is issued, and the lamp 3 and movable mirror 4 move at the same speed as the circumferential speed of the photosensitive drum 8. The movable mirror 5 starts moving in the direction indicated by the arrow at half the speed.

The image of the document illuminated from below by the illumination lamp 3 is formed on the photosensitive drum 8 in the exposure section 19 via the aforementioned optical system.

When the exposure is completed, the illumination lamp 3 and the movable mirror 4.6 stop moving in the direction of the arrow, immediately return to the opposite direction, and print the number of copies C specified in advance by a button (not shown). 2. Repeat the above operations accordingly. When the exposure for the designated number of sheets is completed, the illumination lamp 3 and movable mirror 4.8 return to predetermined positions and stop.

The speed of movement in the opposite direction is faster than the speed of movement in the direction of the arrow, eliminating wasted time and increasing copying efficiency.

The photosensitive drum 8 is made of a photosensitive layer (h) coated with a transparent insulating layer, and is subjected to AC charge removal by an eraser 10 supplied with AC high voltage current from a high voltage power source (not shown), and at the same time exposed to light by a second lamp 11. Then, the charges on the surface of the photosensitive layer and inside the photosensitive layer are erased, and then charged to (+) by the primary charger 12 supplied with each positive high voltage current from a high voltage power source (not shown).

Next, when reaching the exposure section, the width of the document is exposed to the slit, and at the same time, the AC static electricity is removed by the AC static eliminator 1s, which is supplied with AC high voltage current from a high voltage power source (not shown). An electrostatic latent image is formed on the surface of the drum 8 by full exposure by the lamp 14, and the image is developed*.
Enter rE15.

The developer 1s has an aS roller 1B, and the electrostatic latent image on the photosensitive drum 8 is visualized by the developer magnetically attracted to this roller. Subsequently, the transfer paper P sent from the paper feed section 17 is tightly loaded onto the photosensitive drum 8, and is charged (
+) Charging is performed using a high FEW flow, and the image is transferred onto the transfer paper P.

The transfer paper P after the transfer is transferred to the fixing unit 20 by the bell) 111.
be guided by. The remaining adhesive is removed from the photosensitive drum 8 by the edge portion 21m of the blade cleaner 21 which is pressed against the photosensitive drum 8, and the process cycle is repeated again. Photosensitive drum 8
After repeating the cycle for the number of sheets specified in advance by a button (not shown), the rotation is continued, and the static electricity is removed by the AC static eliminator 13 and the entire surface is heated by the lamp 13.
The charge inside the photosensitive layer is removed by light or the like, and after rotating for a predetermined amount in preparation for the next time, it is stopped.

On the other hand, the transfer paper P is stored in a deck of the paper feed section 17 at the bottom of the device.This paper feed deck is structured so that transfer paper of several sizes can be stored with simple operation as needed. has been done. All of the transfer sheets P stored in the sheet feeding deck are pressed against the sheet feeding roller 22 with a predetermined pressure, regardless of the amount. When the photosensitive drum 8 reaches a predetermined position, the paper feed roller 22, which has been selected in advance by a button (not shown), starts rotating and feeds the transfer paper P to the left in FIG.

Subsequent paper feeding is performed by the paper feeding means of the roller pairs 23 to 21 and subsequent ones. After being synchronized with the fixation on the drum guided to the photosensitive drum 8 by the roller pair 26, it comes into close contact with the photosensitive drum 8, and the fixation is transferred by being charged by the transfer charger 18. The transfer paper P that has completed the transfer is sent to the fixing section 20 by the bell) 1s, and the transfer papers P with unfixed surface marks on the surface are pressed against each other with a predetermined pressure and heat, and then the transfer paper P is pressed against the roller 2Gm at the same peripheral speed for a distance of 20m. When passing through, it is fixed under a certain amount of pressure and heat.

The transfer paper leaving the fixing section 20 reaches the next pair of drive rollers 21. There are two conveyance paths after the drive roller pair 27, one is a path for discharging the paper to the outside of the machine, and the other is a path leading to the intermediate tray 28 for double-sided copying.

Switching between the two conveyance paths is performed by moving the switching lever 2I in the direction G or H shown in FIG. 1 depending on a predetermined greeting mode. When the switching lever 29 is set in the G direction, the transfer paper P is sent to the intermediate tray 28 via a pair of rollers 30 and 31.

Further, when the switching lever 2@ is set in the H direction (Ni-set), the material is discharged out of the machine via several pairs of rollers 32 and 33.

In the double-sided copy mode (= means that all the transfer paper copied on the front side by the above-mentioned copying cycle is stored in the intermediate tray 28, and when the next back side is copied, it is sent out sequentially from the bottom side by the paper feed roller 3442, The image is sent to the transfer section via the belt 35 and roller pair 36, 26, and transferred and fixed by the means described above.

The transfer paper discharged outside the machine is transferred to the roller pair 32 as described above.
．． 33 and is discharged outside the machine.

On the other hand, an automatic document feeder 37 is provided above the document table 2. The automatic document feeder 37 is capable of exposing four sides (H and 2). This apparatus has two document insertion trays: a sheet document insertion tray 3s for double-sided copying and a document insertion tray 3@ for normal single-sided copying. Furthermore, a temporary storage tray 4o and a paper discharge tray 41 used for double-sided copying are also provided.

Normally, when making a predetermined number of normal copies using this device, when an autofeed button (to be described later) provided on the operation section is pressed, the document insertion tray indicator lamp 42 lights up. This is because M document insertion trays are 38.3@ and 2gA, and therefore, mistakes in document insertion are prevented depending on the respective copying modes, that is, normal single-sided mode or double-sided mode. A lamp 46 that instructs to insert a document into the document tray 38 when double-sided copying is instructed by the auto feed button.
lights up.

By the way, if the user inserts a document by mistake in each copy mode, the device will not accept the copy.

That is, during normal copying, when a sheet original is placed in the tray 3I with the side to be copied facing upward as instructed by the lighting of the lamp 42, copying is possible only after the centimeter S provided inside detects this.

When the copy button is pressed here, the sheet documents are first separated from the uppermost sheet document by the separation/feeding roller 43 (which has rotated once), and are sent out to the left in the figure, and are transferred to the belt 44 ( =Therefore, the document mounting table 2 (two-ringed) stops at a predetermined exposure position. Then, when the copying of the predetermined number of sheets set by the above-mentioned copying means is completed, the belt 44 rotates counterclockwise again to place the document. Ejection tray 41
At the same time, the next original is conveyed from tray 3 onto original platen 2 and copied, and then
, s are all copied.

On the other hand, a case of copying in double-sided copying mode using an automatic feeder will be explained. In the present invention, when double-sided copying is performed using an automatic feeder, the desired number of copies is automatically increased depending on whether the number of copies is one sheet or multiple sheets. Equipped with transportation means.

First, the case of copying one sheet will be explained. In this case, automatic delivery! When double-sided copying is selected on the Il side, a lamp 46 for instructing insertion of the document insertion tray 3@sheet original is lit. When a document is inserted onto the tray 38 with the side to be copied facing upward in order to make a double-sided copy, this is detected by the centimeter S and becomes ready for copying.

When the copy button is pressed, a roller 48 similar to the roller 43 described above sends out the original sheet starting from the topmost sheet. In this case, in C2, the back side of the first page of the original is placed on the original placing table 2. Then, the conveyance path switching lever 47 is set in the direction B in FIG. 1, and the belt 44, which rotates clockwise, passes under the belt and sends it to the exposure position on the document table 2.

Then, when the V-) original is set at a predetermined exposure position, charging, exposure, transfer, and fixing are performed in the copying cycle described above, and the transfer paper P on which the back side of the sheet original is copied is stored in the intermediate tray 28. . Then, when the copying of the back side of the first purchase is completed, the belt 44 rotates clockwise again, and the sheet original is discharged to the tray 3 side via the roller 48.

The sheet document discharged onto the tray 38 is discharged with the back side facing upward. At the same time as the first purchased document is ejected to the tray 3- side, the next second purchased document is delivered to the roller 4! I and belt 4
The original is set at the exposure position on the document mounting table again by step 4, and step 2
The back side of the purchase item is copied.

On the other hand, the second purchased transfer paper P on which the back side has been copied is also stored in the intermediate tray 28 as described above.

The above operations are continued until [11] all sheet documents on the tray 38 are exhausted. This is the back side copying operation of the sheet Ms.

Next C: The front copy operation will be explained. For originals whose back side has been copied using the above operation, place the first sheet on the bottom layer.
The sheets are stacked one on top of the other and stored on the tray 3 with the back side facing up, and all of the transfer sheets P are also stored on the intermediate tray 28. Then, preparation for surface copying is automatically started.

First, g and m stored on the tray 3g are transferred onto the tray 40. This operation is to reverse the order of the pages of the sheet original, and the sheet originals on the tray 3e are sent out from the top by the rollers 43 in the same way as the operation in the normal mode described above. However, if the document is sent out as it is, the document will not be transferred to the tray 40 but the original St+ will be sent in the direction of the table 2, so the switching lever 4@ is switched in the direction of the arrow and the document is ejected to the tray 40 side. This operation is performed by tray 31.
This is carried out until all the first originals are used up.Next, the pre-separation feed roller sO rotates and sends out the sheet original, that is, the front side of the first sheet, to be copied. At this time, the switching lever s1 is set in the direction of arrow E, and the sheet original is sent toward the original placing table 2. At this time, the belt 44 is rotating counterclockwise and conveys the original to a predetermined exposure position.

When a rate original is set at exposure 1, the intermediate tray 28
The paper feeding roller 34 is rotated again to feed out the transfer paper P stored in the paper sheet P from the bottom side, that is, the back side of the first document has been copied, and the same copying cycle as described above is performed. The surface is copied and then ejected out of the machine. This operation continues until all documents on the tray 40 are exhausted.

In this way, full-sided copying of a predetermined number of sheet originals is efficiently and automatically performed one copy at a time.

Next, a case where double-sided copying of a plurality of copies of a portion of a sheet document is performed will be described.

In this case, the original inserted on the insertion tray 3I is first transferred to the original placing table 2 in the same manner as described above, and when set at a predetermined position, the back side of the first original is Exposure and copying operations are performed.

Then, the copied original is sent to the tray 40 via the tray 3I as described above.

Further, the number of transfer sheets P to be copied is stored in the intermediate tray 28.

Next, the sheet original is sent from the tray 40 onto the original placing table 2 in the same manner as described above in order to copy the back side thereof, and when it is set at a predetermined exposure position, the transfer paper is transferred from the intermediate tray 28.
is sent out, a predetermined number of copies are made, and the sheet is ejected outside the machine, and the sheet # original is ejected to the tray 41 side.

When this operation is completed, the second sheet of the original document is stored on the tray 38 and sent to the soft document table 2, and the above-described operation is repeated. This operation is efficiently performed until there are no more sheet documents on the tray 38.

Next, the sorter 52 disposed on the right side of the copying machine [1 in FIG. 1] will be explained. Is this sorter S2 in the commonly used face-down type, that is, with the copied transfer paper facing downwards? This sorter 52 is of a stored type, but the feature of this sorter 52 is that it has a shredder function. Another feature is that, in addition to the usual storage bin that is stored face down, the C2 machine is equipped with a separate tray 54 that allows you to easily check the image quality of the transfer paper from the top of the machine and easily take it out. It is. A further feature of this sorter is that the tray 54 doubles as an insertion tray when only the shredder function is activated, and the separate tray 64 doubles as a tray for simple editing that can reverse the page order. Another biggest feature is that when copying using a face-down type sorter, it has a sampling copy function, and when making multiple copies from one original, the first sheet of transfer paper is placed in the tray 54 This allows the user to easily check the image quality of the transfer paper by storing it face-up, and storing the second and subsequent sheets in the sorter bin. When the sampling copy mode is completed, the transfer paper sheet stored on the tray 54 with the page order reversed is automatically arranged in the page order and stored in the soda bottle.

In addition, if the user discovers an abnormality in the image during sampling copying, such as shading of the image or the original being copied crookedly, and presses the up-copy instruction button on the main unit, the operation will immediately stop and the original will be stored in the sorter bin. It has a function to sequentially eject transfer sheets of abnormal images from the sorter bin for shredding, and also has a function to count and display the number of shredded sheets of abnormal images, which prevents errors in calculating copying charges from the main unit's counter. can do.

The reference numeral 63 inside the sorter 52 is a roller that guides the transfer paper P discharged from the main body into the sorter, and two conveyance paths are provided after the roller.

One is a conveyance path for conveying the transfer paper to another tray S4, and the other is a conveyance path for conveying the transfer paper to the sorter bin Ss, and the switching is performed by a lever 55. When the lever 55 is set in the arrow 1 direction, the tray 54 is moved, and when the lever 55 is set in the arrow summer direction, the sorter bin is moved! The transfer paper is conveyed in 11 directions.

It is sent to the tray 54 via the roller s4, and sent to the sorter bin 5s by the roller! ill, 57. They are stored in order via So and the bin shift lever 58. In FIG. 1C2, a shredder is designated by the reference numeral 62 inside the sorter 52, and the shredded transfer paper is stored in a storage box 63. The E lid of the storage box 63 (Second is a sensor S that detects when the shredded paper is full is arranged, and the conveyance path C in front of the shredder is arranged a sensor S that detects transfer paper. A sensor S for detecting transfer paper is also provided in another tray 54.

By the way, FIG. 2 schematically shows the operating section of the copying station according to the present invention viewed from above. 100 in Figure 2
101 is a warning display section that displays out of transfer paper, out of toner, jamming, etc., 102 is a recovery button, 103 is a copy button, 104 is a copy number setting/clear key, and 105 is a sorter. instruction button,
106 is an automatic feed instruction button, 107 is a double-sided button, 1
0g is a chimp ring button, 111 is a transfer paper size indicator stored in the deck, 112 is a recovery operation indicator lamp, 113 is a weight indicator lamp, 114 is a set indicator for the number of copies, and 115 is an indicator for setting the number of copies. This is an indicator of the number of copies you have. Code 10G in Figure 2
Lower numbers indicate the same parts as in FIG.

An operating section is also provided on the sorter 52 side on the right side in FIG. That is, 120 is a kakunta display, 121 is a shred operation button, 122 is a shred operation indicator lamp, 1
Reference numeral 23 indicates a simple editing button, and 124 indicates an editing operation lamp.

On the other hand, Figure 3) shows a sheet document transport transition diagram and a transfer paper P transport transition diagram of the copying apparatus according to the present invention, respectively.
This is a diagram illustrating the transport state of only the original and transfer paper in the explanation of the operations during single-sided copying and double-sided copying described above.

jll! FIG. 4(A) shows the schematic structure of the above-mentioned shredding device 62, in which the lid 6311 of the storage box 63 is rotatably supported at one end via a shaft 63b, and its free end and There is a spring @l between the storage box 63
c is stretched, and is given the ability to rotate in the direction of always closing. For example, when the storage box 63 of the Senna S, which consists of a microswitch, etc., becomes full due to shredded paper, when the lid 113m of the storage box is opened, the protrusion Hd fixed to the device comes into contact with the Senna S-, and the full state is confirmed. Detected.

FIG. 4(B) is a schematic diagram of the mechanism for feeding the transfer paper from the storage tray sI of the sorter device ψ mentioned above.
The middle plate 511m is accommodated, and this middle plate S @ spring is 6! The transfer paper on the middle plate 59a is elastically supported by the middle plate 59a so as to be movable between the bottom plate 69b and the upper IC 5IC, and when the transfer paper is fed out, the paper feed roller 60
The structure is such that it can have an appropriate contact pressure with the material.

To guide the transfer paper into the tray 5, use the vertical guide 73.
The transfer paper that has reached the switching point via the path formed by the bent guide 12 is guided by the switching guide 58 from between the guides 72 and 71 to the storage bus to the tray 5-. The switching guide 74 is driven by a solenoid (not shown), but at this time, the middle plate! @a is also pushed down to the bottom plate 511b side by a solenoid etc.
The paper feed roller 60 is in contact with the lower guide 11 and the fourth
(Figure 2) The transfer paper is rotated in the direction of the middle arrow B and the transfer paper is securely placed in the tray IS.

When sending transfer paper from tray 5-, press down while the transfer paper is stacked on the middle plate S@a and turn off the solenoid.
By setting F, the intermediate plate 51m is pushed up by the spring 5 so that the transfer paper and the paper feed roller 60 come into contact, and by controlling the clutch to intermittently rotate the paper feed roller 0 in the direction of the arrow C, one sheet is transferred. Send them out one by one. At this time, the switching guide 68 is switched to the direction in which the transfer paper is sent out to the conveyance path.

By the way, FIG. 5 is a block diagram of a 4-bit, 1-depth microcomputer for controlling the operation of a copying machine according to the present invention.
It is equipped with a ROM in which the control program is masked, a RAM for data memory, an accumulator ACC, and an input port of A-G in 4-bit units and an output port of H to P in 4-bit units as input ports, and each port is As shown by arrows in FIG. 5, it is connected to each sensor and drive signal line.

FIG. 6 shows an example of a circuit in which this input/output section is connected.

First, signals are input to the input section from various sensors fS such as magnetic, optical, mechanical, etc. via transistors T. In addition, in the output section, a control circuit that drives loads such as solenoids, clutches, lamps, etc., and AC loads such as motors, etc. is connected via a solid state relay SSR from each output port via a connected Darlington transistor. O Next, regarding the operation of this embodiment configured as above! J
This will be explained with reference to flowcharts in FIGS. 117 to 9.

FIG. 7 is a flowchart showing the copy standby cycle. When the power is turned on, the RAM is cleared in step 1, the process is performed in step 2, and the process is performed manually using the keys on the operation panel or the display routine on the display device. Then, in judgment step 3, it is determined whether or not the sorter instruction button 105 has been pressed. If it has been pressed, the flag F/sorter is set in step 4, and if it has not been pressed, the flag F/sorter is reset in step 5. . In judgment step 6, it is judged whether or not the instruction button 108 of the automatic document feeder has been pressed. If it has been pressed, the flag F/ADF (
(automatic document feed), and if it is not pressed, reset F/ARP in step 8.

Also, in step -, it is determined whether the sampling button 102 has been pressed, and if it has been pressed, a flag F/sample is set in step 10, and if it has not been pressed, F/sample is reset in line step 11. . Then, in step 12, it is determined whether or not the double-sided copy button 107 has been pressed, and if it has been pressed, the flag F/duplex is set in step 13, and if it has not been pressed, step 14
to reset F/both sides. In step 1s, it is determined whether or not the shred button 121 provided on the operation unit on the sorter side has been pressed.

In the present invention, as described above, the sorter s2 has a built-in shredding function, and when the copying operation is stopped, it can also be used as a normal shredder by operating the shred button C2 provided on the sorter operating section.

Therefore, in step 15, it is determined whether or not the shred button is pressed, and if the shred button is pressed, the process moves to step 18.

In step 1, the shredded transfer paper is stored in the storage box 63.
The Senna S6 is checked to see if it is full. If it is not full, the process moves to step 19. Here, the microcomputer output boat PI4 is set to turn on the sorter motor, and the PI is set to turn on the roller 5 to which paper is to be inserted from the tray 54. And in step 20, shred g7MWI6
At the same time, the lamp 122 is turned on to indicate that the shredding device is operating. In the following, the output ports of the microcontroller will be omitted and only the signal names will be described.

Next, go from step 20 to step 15 again for 4 lines and continue until the shred button is turned off.If the shredded paper is full in step 18, step 2
1, the lamp 122 is turned on and off for flash lighting.

Step 1! When the shred button is turned off at step I, the process moves to step 16, where the sorter motor M is turned off and the roller s is turned off.
B, the shred device 62 and the lamp 122 are turned off in step 17, and the process moves to step 22.

In step 22, it is determined whether the simple edit button 123 has been pressed. As described above, the device of the present invention is equipped with a simple editing function, and it is possible to properly return manuscripts with reversed page order to Yojima.

When the edit button is turned on after the sheet Ms to be edited is set on the tray 54, the process moves to step 24, where the same control as in step II is performed and the sorter motor M3 and roller SS are driven.

When the roller 5S is driven, the sheet originals are sequentially sent out from the top to the sorter bin, and in step 25 the paper is stored in a predetermined sorter bin, and in the next step 26, the paper is sent out to the sorter bin. 3
．． Accordingly, the editing display lamp 124 is turned on in step 21 and steps 24 to 21 are continued until the paper runs out. Then, when all the transfer sheets are stored in the sorter bin in step 26, the process moves to step 28, and the lamp 124
is turned off, and in step 23 the sorter motor M2, roller!
Stop is driving.

Next C:, Step 2- checks the QUITE mode, that is, fixing heater, no paper, no toner, etc. If not, it is determined in step 30 whether or not the copy button has been pressed, and if it has not been pressed. Go to step 2 and repeat the above steps. In this way, the copy standby cycle ends.

When the copy button is pressed in step 30C2, the process moves to step 30 shown in FIG. In step 31, the flag F/ADF is checked. This is a check to see if the ADF instruction button has been pressed during the standby cycle.

Here, book mode copying other than ADF mode will be explained.

The ADF device according to the present invention is placed on the top surface of the copying machine as shown in FIG.
It can be locked, allowing you to copy books while holding up the ADF*I.

Now, since the answer in step 31 is negative, the process moves to step 32. In step s2, the main body motor M1 is turned on, the sorter motor M is turned on, and the high voltage transformer for the charger is turned on, and the process moves to step s3. In step 33, the photosensitive drum 8
Pre-rotation control is performed to rotate the drum one or two times in order to make the charged potential on the drum uniform. When the pre-rotation is completed in step 33, the paper feed roller 22 is rotated to convey the transfer paper from the deck to the transfer section. Performs paper feed control processing. Mo,
At a predetermined timing, in step 3B, a start command is issued to move the optical system for exposing the BOOK original to the right from C2 in FIG. Do Shima Ri. Step 3
Check the Etsu stop mode in step 6.

If it is not the stop mode, the process moves to step 3@, where the desired number of copies, ie, the number of set copies and the number of copies per copy are compared. If the two do not match, the process moves to step 3I. In step 39, a sorter control routine to be described later is performed, and the process moves to step 40, and a recovery button routine to be described later is performed, and the process returns to steps 34 to 38.
When the desired number of copies has been made and the number of sets matches the number of copies, the process moves to step 81.

The sorter control routine in step 3@ is shown in FIG. First, in step 100, a flag F/sorter is checked to see if the sorter button is pressed. If sorter storage is not selected here, step 1
011, the transfer path switching lever 52 for storing the transfer paper P from the main body into a separate tray 54 is driven, and the lever is set in the direction of the arrow 1.0 Then, in step 107, the transfer paper is stored in the tray 54. , the process moves to step 108.

If the sorter button is pressed in step 101, the process moves to step 101. Here we check whether the sampling button has been pressed.

If the sampling button has been pressed, the process moves to step 102, and it is checked whether it is the first sheet of transfer paper. '1
If it is the first sheet of transfer paper, the process moves to step 103, and the lever 54 is moved to send the first sheet of transfer paper to the tray 54, which can be stored face-up so that the user can easily confirm his/her feelings.
Drive 2 to switch.

In this case, for the second and subsequent sheets, the process moves to step 104, and the lever! Sorter storage bin to stop the drive of 12! I
The files are stored in I sequentially. And step 10! In step S, control is performed to store the transfer paper in the sorter bin, and step 1
Check whether copying of the main unit is completed in 08,
If it has not finished, the process moves to step 113 and returns to the main program.

If the copying is completed in step fall, the process moves to step 101, and the sampling flag F/)-sample is checked. If YIS is selected here, the chimpled transfer paper will remain in the tray 54 with the page order reversed after the copying operation is finished, so the parts editing function can be used to automatically sort Steps 110 to 112 are performed to store the pages in the same order.

Next, the four recovery button routines in step 40 of the main program will be explained using the tJII9 diagram. That is, in step 130, it is checked whether or not the beam recovery button has been pressed, and if it has been pressed, step 1 is performed.
Flag F/5TOP to indicate stop mode at 31
, a flag F/recovery indicating that the recovery button was pressed is set. Then return to the main program.

By the way, if the transfer paper ejected to the tray 54 on the sorter side is an abnormal one while copying in the chimbling check mode, when the recovery button is pressed, ■S will be displayed in step 37, and the process will proceed to step 7@, and the copying process will be performed. After the recovery process is performed, the process is stopped, and in the next step 50, the operation for storing the second and subsequent sheets of transfer paper into the sorter bin is already performed, and in step 81
Performs recovery control processing. This recovery control will be explained with reference to FIG. 9.

That is, in step 120, the flag F/recovery is checked to see if the recovery button has been pressed.

If YES, the process moves to step 121, where the number of abnormal copies that have already been copied is confirmed, and in step 122, the shredder device 2 in the sorter is driven to remove the abnormal copies that have already been copied. Laura O
Turn it around and discharge it to the shredder.

This operation is continued in step 123 until n=0, that is, the number of abnormal images already copied becomes zero, and the abnormal images are sequentially ejected from the printer bin.

In step 125, the sensor S disposed in front of the conveyance path of the shredder checks how many abnormal images have been processed, and in step 126, the number is counted and the kakunta 120 is driven. Then, when all the steps are completed, the drive of the shredding device is stopped in step 124.

Next, the operation of the double-sided ADF mode, which is one of the features of the present invention, will be explained. That is, in step 31 of FIG. 8, when F/ADF = 1 and ■ becomes, the process moves to step 41. In step 41, it is checked whether the double-sided button has been pressed, that is, the flag F/both sides is checked, and if YES, the lamp 46 is turned on in step 42, and the Ns
An instruction to insert a document to be double-sided copied into the insertion tray 38 is given.

Then, in step 43, if it is detected that [11] has been inserted from the sensor S1: provided at the lower part of the tray 39, the process moves to step 44. In step 44, the main body motor, high voltage transformer, ADF motor, pre-separation feed roller 45
Turn on the lever 47 in the direction B in Fig. 1,
In order to convey the transfer paper to the intermediate tray 25, the lever 29 is
Set it to the G side.

Then, in step 45, pre-copying rotation is performed, and in step 46, the roller 4! ! The sheet original is sent to the exposure position of the original S mounting table 2 by i, and it is checked whether it is set. If it is set, in step 41, the ADF
On Tanabata, turn off the roller 45. And step 4
At step 8, the transfer paper P is fed from the deck of the main body to the transfer section, and at a predetermined timing, at step 4, the optical system (lamp 3, movable mirror 4.5) is started, and the exposure lamp 14 is turned on. It is turned on, copying control processing is performed in step IO, and the number of copies set and the number of copies are compared in step 51. If they do not match, the process returns to step 48 to continue copying.

If it is determined in step 51 that the set number of sheets matches the number of copies, the process moves to step 52, where the ADF motor is turned on and the back side of the sheet original is ejected to the original tray 3I. At this time, the transfer paper P is transferred to the intermediate tray 28.
It is stored inside. This is step l$3, and in step s4 it is determined whether the number of sheets set is one, that is, whether the mode is single copy mode or multi-copy mode.

In the single copy mode, that is, when it is desired to copy only a portion of the double-sided copy sheet M111, the process moves to step 56, and then moves to step C; step 44,
The above-described operation is repeated to copy the back sides of the sheet originals inserted onto the tray 3@ one by one and convey them to the tray 39 side.

If it is determined in step 54 that the mode is multi-copy mode, the process moves to step 55. In step 5s, it is checked whether the sheet document has been conveyed to tray 3@, and if it has been conveyed, the process moves to step S7. In step 57, the ADF motor and roller 43 are turned on, and the lever 4- is driven to set the sheet document conveyed on the tray 3I in the center direction in FIG. 1 in order to convey it onto the tray 40. Then, in steps 58 and 511, all the sheet documents on the tray 3s (partially in the case of single copy) are transferred to the tray 4s in the case of multi-copy.
After the document is conveyed upward, the roller 43 is turned off and the lever 49 is turned off in step 60, and in step 61, the sensor Ss checks whether the sheet document has been conveyed onto the tray 3@. The process moves to step 82 in FIG. In step 82, the separation/conveyance roller 10 for copying the front side of the original on the tray 40 is turned on, and the lever 51 is set in the direction of arrow E. In step 84, the exposure position C on the sheet original mounting table 2 is set. Check if. If it is set, in step 84 the AD
The F motor and the roller 4s are turned off, and in step SS, the roller 234 for sending out the back side of the transfer sheet P stored in the intermediate tray 2s to be copied is rotated to feed the sheet.

Then, at step 86, at a predetermined timing 5, the optical system
The exposure sensor 14 is turned on, and in step 81, a front side copy of the sheet original is performed. Then, in step 88, it is checked whether there is a stop mode (:), and if it is not stopped, it is checked in step 8 whether the desired number of copies have been made, and if not, it is moved to sorter control step-11 in step SO. , go to step @5 again via the recovery button and continue copying.

If it is determined in step 8 @ that the set number of sheets matches the number of copies, the process moves to step diagnosis 2, the ADF motor is turned off, the lever 41 is set to the A side, and the sheet document is ejected in step @ 3. It is discharged onto the tray 41. In step 114, it is determined whether the mode is single copy mode or multi-copy mode, and if it is multi-copy mode, step @
6 to step 44 of FIG. If it is the single copy mode, the process proceeds to step 95, and the operations of steps 82 to @5 are repeated until all the V-) originals on the tray 40 are exhausted.

Finally, normal ADF mode copying will be explained. That is, in step 41 shown in FIG. 8, flag F/double-sided is determined.
The insertion instruction lamp 42 is turned on, and it is checked in step 63 whether or not it has been inserted. If it has been inserted, the motor and high voltage transformer of the main body are turned on in step 64 to start photographing, and the ADF motor and feed are turned on. The roller 43 is turned on and the sheet original on the tray 3I is conveyed so as to be guided to the original placing table 2. Then, in step 65, the main body is pre-rotated, and in step 66, it is checked whether or not the sheet original is set at the exposure position. If it is set, the ADF motor and roller 43 are turned off in step 67, and step 68 Then, it is decided to feed the transfer paper P from the deck.

Then, at a predetermined timing, the optical system is started in step 6, the exposure lamp 3 is turned on, and step 1
At step G, copy control processing is performed, at step 11 it is checked whether or not the stop mode is in effect, and at step 12 it is checked whether the set number of sheets and the number of copies per copy match. Step 12
If it is determined that the set number of sheets and the number of copies are not constant, steps 68 to 10 are repeated again, and if they match, the process moves to step 13. In step 13, the ADF motor and lever 41 are turned on, and in step 14, the sheet original is discharged onto the tray 40. Then, in step 75, the presence or absence of a rate document on the tray 3s is checked using the sensor fF, and if there is a sheet document, step 7
The process returns to step 64 via step 11.77, and the original is again guided from the tray 39 onto the original placing table 2 for copying.

Step 75 (=V-) If it is determined that all the originals are gone, the ADF motor is turned off in Step 78, the rotation process is performed after copying in Step 1g, the apparatus is stopped, and the 4th step is performed as described above. 80.81, the process returns to step 2 in FIG. 7 and enters the copy standby cycle.

As is clear from the above description, according to the present invention, sheet document insertion trays for double-sided copying and single-sided copying are each provided with a document insertion instruction lamp and document detection means corresponding to the copy mode. If the original is not inserted properly, the device does not perform the copying operation, which has the excellent effect of completely preventing copying errors caused by incorrect insertion of the original. .

[Brief explanation of the drawing]

The figures are for explaining one embodiment of the present invention, and FIG. 1 is a schematic configuration diagram of a double-sided copying machine with an automatic document feeder to which the present invention is applied, and FIG. 2 shows a control panel portion of the copying machine. The top view, Figure 3, (■) are transfer transition diagrams that explain the original scraping path and transfer paper transport path, and Figure 4, @).
5 is a perspective view of the storage box of the shredder device and an enlarged longitudinal side view showing the main parts of the sorter, FIG. 5 is a block circuit diagram explaining the control circuit, and FIG. 6 is a block circuit diagram showing the specific circuit configuration, 7 to 19 are flowcharts for explaining the operation. 1... Copying device 2... Original document mounting table 3.
...Original illumination lamp 8...Photosensitive drum 28...
・Intermediate tray 29.47.4@, 51.55...Switching lever 37・
... Original automatic feeder 38 ... Sheet original insertion tray for double-sided copying 3... Original insertion tray for single-sided copying 40 ... Temporary storage tray 41 ... Paper ejection tray 42. 46 ... Indication lamp 52 ... Sorter 5
4... Tray 5g... Sorter bin 6
2...Shredder 63...Storage box Patent applicant Takashi Kato, patent attorney representing Canon Co., Ltd.

Claims (1)

[Claims] In a duplex copying machine with an automatic document feeder equipped with a duplex copying function and an automatic duplex document feeder, the automatic duplex document feeder includes a first V-1 document insertion tray for double-sided copying. a second sheet original insertion tray for single-sided copying; a display means provided in each sheet original insertion tray for indicating the original tray into which the sheet original is to be inserted by selecting a copy mode; and the first and second sheet original insertion trays. a document detection means provided in the sheet document insertion tray of the invention, and is configured to be in a copyable state when the document is inserted in the sheet document insertion tray according to the copy mode. Double-sided copying device with feeding device.