JPH0213580A - Document circulation type copying device - Google Patents

Abstract

PURPOSE:To permit sorting of documents according to their size by detecting the size of documents in conveying the first document to a copying machine body and copying only documents of the same size as each document is circulated, while documents of different sizes are returned without being copied. CONSTITUTION:With documents D of different sizes set at random on a document tray 1 of a circulation type automatic document feed device 10, the lowermost document D is conveyed onto a glass 3 by means of a loosening roller 32, a paper supply roller 33 and a separation roller 36 via a conveying roller 38 and a conveying belt 39. As this occurs, the size of the document D is detected by a document detector 37. In response to a signal generated by the document detector, a copying machine body selects a cassette of a detected size and supplies paper for copying. Subsequently, as documents are fed from the document feed device 10, only those documents whose size is the same as that of the first document are copied, and documents of different sizes are returned onto the document tray 1 without being copied. As a different size is detected, documents of that size are copied. In this manner, documents that have been sorted according to their size and bound together can be obtained automatically.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an original circulation type copying device, in particular a circulation type automatic document feeder that can mix and set originals of multiple sizes in the copying machine body, and a series of copied originals. The present invention relates to a manuscript circulation type copying apparatus configured as a system by combining a finisher (finishing device) that automatically aligns and binds transfer sheets.

[Conventional technology]

In recent years, copying machines have become more multi-functional and systematized, and the automatic document feeder installed in the copying machine is capable of loading originals of multiple sizes and feeding them into a single sheet. After being transported one by one to the exposure section of the copying machine main body,
Circulating automatic document feeders have appeared that return documents to the set position and circulate them again.

There is also a finisher (finishing device) that accepts transfer sheets made sequentially by a copying machine equipped with such a circulating automatic document feeder, and automatically aligns and stitches multiple sheets in an overlapping state. It is appearing.

Therefore, by combining these functions, by simply placing a series of originals on the automatic document feeder, entering the number of copies, and pressing the copy start key, the series of originals will be copied one sheet at a time and bound together as required. You can automatically create as many copies as you want.

[Problem to be solved by the invention]

However, if you set originals of multiple sizes in a circulating automatic document feeder and want to copy and bind them for each size, conventionally, you have to rearrange the originals by size in advance. , there was a problem of poor work efficiency.

This invention was made in view of the above points, and even if you start copying with multiple sizes of originals randomly mixed together, the originals can be sorted by size and then bound. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the present invention has a main body of a copying machine that is equipped with a plurality of paper feeding means for feeding transfer paper of different sizes, and that feeds the appropriate transfer paper according to the original size to make a copy. and a circulation type automatic document feeder that can set originals of multiple sizes in a mixed manner, and that transports the originals one by one to an exposure section of the main body of the copying machine and then returns them to the setting position and circulates them; In a document circulation type copying device that includes a finisher that accepts copied transfer sheets created by the main unit and automatically aligns and staples multiple sheets, the document is transported to the exposure unit by a circulation type automatic document feeder. The document size detection means detects the size of each document to be loaded, and the circulating automatic document feeder scans all the mixed documents into one document in the order of sizes sequentially detected, starting with the document of the first size detected by the document size detection means. Copies are made only for originals of the same size during circulation.
means for controlling the copying machine main body and the circulating automatic document feeder so as to make copies a number of times corresponding to the type of the detected document size, each time copying of one type of document of the same size is completed; A finisher control means is provided for controlling the finisher so that the copied transfer sheets received during that time are bound and discharged.

[For production]

The original circulation type copying apparatus according to the present invention has the above-described configuration, so that even when a plurality of original sizes are randomly mixed and set in the circulation type automatic document feeder, the copying machine can
- The document size detection means detects the document size when the rear circulation type automatic document feeder transports the first document to the exposure position of the copying machine body, and then detects the document size at the beginning while all documents are circulated once. The copying machine makes copies only for originals of the same size as the original size, and returns originals of other sizes to the set position without making copies.

During the second circulation of mixed originals by the circulating automatic document feeder, only the originals of the same size as the second one detected by the original size detection means are
The main body of the copying machine makes copies, and originals of other sizes are returned to the set position without making copies.

Similar processing is performed the number of times corresponding to the type of document size detected.

Then, each time copying of one type of original of the same size is completed, the finisher binds and discharges the copied transfer sheets received during that time.

Therefore, it is possible to automatically obtain copies that are sorted and bound according to document size.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Overall Configuration of Embodiment FIG. 1 is a diagram showing the overall configuration of an example of an original circulation type copying apparatus according to the present invention.

This copying apparatus can set original sheets of multiple sizes on the original tray 1, and after conveying the original sheets sequentially from the bottom to the exposure section in page order, they are placed on the original tray 1 again. A circulating automatic document feeder (RDH) 10 that discharges upward and circulates it, and a paper feed cassette 2 arranged in multiple stages.
A copying machine main body 20 that sends out transfer paper PA-PC of different sizes from A to 2C and transfers an image thereto to make a copy, and a copying machine main body 2 that makes a copy.
It consists of a finisher (finishing device) 30 that aligns transfer sheets discharged from 0 and automatically performs binding by stapling.

Then, the original sheets set on the originals 1 to 1 of the circulating automatic document feeder 10 are separated one by one starting from the bottom sheet and are conveyed in the direction of arrow A.
The document is fed to a predetermined position on the contact glass 3 having a size that allows a document of the same size to be placed in the transverse feed direction, and then stopped.

Next, the image of the document is exposed by an exposure lamp 5 moving in the direction of the arrow of the optical system 4, and the reflected light is transmitted to a first mirror 6, a second mirror 7, a third mirror 8, . Lens 9. Fourth
The image is projected onto the photosensitive drum 1 via the mirror 11.

The photosensitive tram 13 is charged in advance by a charging charger 14, and forms an electrostatic latent image corresponding to the image of the original on its surface, and develops the image by applying toner to it in the developing unit 15.

On the other hand, the transfer paper is retrieved from the paper feed force Serra I selected according to the document size among the paper feed cassettes 2A to 2C that store different sizes, and the roller 19 is rotated by turning on the paper feed clutch (not shown). When the toner image is transferred to the photoreceptor drum 13 by the transfer charger 1, it is separated from the photoreceptor drum 13 by the separation charger 17 and transferred to the fixing unit 1-18. It is fixed as it passes.

In this way, the transfer paper that has passed through the fixing unit 18 is processed according to the instructions given in advance for "normal paper ejection,""reverse paper ejection,""duplex unit transport," and "reverse duplex unit I/transport." Based on this, the transport path is guided by a switching unit 22 (details of which will be described later) that switches the direction of the transport path, respectively.
It is sent out to the designated conveyance path.

In addition, the original sheet on the contact glass 3 after exposure is turned over and placed on the original sheet 1 to ray 1 again in the direction of arrow B.
It is discharged as shown in .

In addition, 23 in FIG. 1 is a duplex unit, and the transfer paper P copied on one side is conveyed via the switching unit 22.
When a double-sided sheet feeding clutch (not shown) is turned on, the stacked copy sheets C are sent out by a calling roller 19 and conveyed to the transfer section again.

Further, the finisher 30, which will be described in detail later, is a device that stacks and staples transfer sheets sent out from the copying machine main body 20, and is equipped with two sensors that detect the entry of transfer sheets and also identify their size. a reference position changing unit 25 that changes the reference position for aligning the side edges of the transfer paper depending on the binding position; and a reference position changing unit 25 that changes the reference position for aligning the side edges of the transfer paper depending on the binding position; If not, a switching claw 26 switches the conveyance path to the upper paper discharge tray 29 side, and a stapler 31 performs stapling processing on the stacker and then discharges the bundle of transfer sheets onto the lower paper discharge tray 27. 28 mag.

Below, each part of this manuscript circulation type copying apparatus will be explained in detail with reference to FIGS. 2 and subsequent figures.

FIG. 2 is a plan view showing the operation panel 40 provided on the copying machine main body 20 of FIG. 1.

The operation panel 40 includes a main switch 41, keys 42 for instructing the start of copying, a numeric keypad 43 for inputting the number of copies and dimensions, and a paper selector for selecting the size of transfer paper to be used. key 44, a paper selection display section 49 that displays the selected size and paper cassette, a copy magnification selection key 46 that selects normal size, enlarged, or reduced copy, and displays the selection result as a length magnification (%).
A magnification display block 47 that displays the combination of the original size and transfer paper size, and a special function key group 48 are provided. An automatic magnification selection key 48a, a staple key 50 for instructing the binding position of the stapler 31, and a display section 50a for displaying the selected contents are provided.

FIG. 3 is a block diagram for explaining the circular automatic document feeder 10 in more detail.

This circulation type automatic document feeder 10 includes a feeder main body 21
is supported so that it can be opened and closed by a hinge (not shown) so that it is located on the contact glass 6 of the copying machine main body 20. Vibration is applied by the half-moon-shaped sorting roller 32 that contacts the sheet while swinging, and the lower end is fixed to the fixed shaft 34 by the rotation of the paper feeding roller 33 provided downstream of the paper feeding roller 33 in the direction of the arrow. A separation belt 36 whose upper end is hooked to a spring 35 and tensioned separates the bottom sheets one by one and feeds them in the direction of arrow A.

The document detector 67 detects the size and number of sheets passed through the document, and the document is conveyed onto the contact glass 3 by the conveyor rollers 38 and the conveyor belt 3, where it is exposed to light, and then passed through the relay roller 51 to the ejection roller. 52, the document is ejected onto the document tray 1 again as shown in the direction of arrow B.

The document detector 37 is, for example, a plurality of reflective photosensors arranged at a predetermined interval, each sensor detects the document passing therethrough, and the width side of the document is detected by the combination of on and off. At the same time, by measuring the passing time from the leading edge of the passing document until the trailing edge is detected, the length of the document is determined, the size is identified, and the number of times the document is passed is counted. The number of original sheets is also detected.

Further, a document last page detector 45 is provided approximately in the middle of the document tray 1, and the document last page detector 45 brings a filler portion 45a into contact with the upper surface of the side portion of the document tray set above the document tray 1 by its own weight.
- When the last page of the original is fed from above the lay 1, the filler part 45a falls onto the original 1 into the filler rotation hole a formed in the lay 1 due to its own weight, and the filler part 45a
The light shielding section 45b of a opens the detection section of the photointerrupter 45c of the document final page detector 45, thereby detecting the feeding of the final page of the document.

Then, after a predetermined period of time, the filler set motor 56 rotates, and the filler portion 45a is moved in the direction of arrow C by a cam (not shown).
It is lifted up to the top while rotating in the direction, and then detached from the cam and falls due to its own weight. After the prescribed exposure is performed, it is returned to the document tray 1 and comes into contact with the top surface of the last page of the document placed thereon again. do.

The conveyor belts 39 of the separation feeding section and the exposure section, which are composed of paper feeding rollers 33 and the like, are each driven by different motors (not shown).

Hengo LJL 橡 FIG. 4 is a plan view showing the variable magnification mechanism of the optical system 4.

In this variable magnification mechanism, a lens 58 is moved in both directions of arrows X and Y by rotating a lens drive motor 57, and the lens drive motor 57 is operated by a copy magnification selection key 46 (see FIG. 2). The rotation is caused by the rotation of the timing pulley 59 fixed to the rotation shaft of the lens drive motor 57, which causes the timing belt 61 to rotate the worm gear 62.
is rotated, the worm wheel 63 that meshes with the worm wheel 63 is rotated, and the variable power cam pulley 64 is driven to rotate.

Further, a lens quick-acting wire 65 is attached to the variable magnification cam pulley 64.
is stretched between a pulley 66 that is rotatably supported by a fixed part of the copying machine main body 20, and a bracket that is movable in the Y direction by passing a guide rod 71 through the lens movement wire 65. 67 is fixed at one end.

The bracket 67 has a guide rod 72 fixed in the X direction in FIG.
8 through the bracket 68 holding the bracket 68.
is a guide groove 73 whose lower part is formed diagonally in the cam plate 73.
a and moves the bracket 67 in the Y direction,
Along with this, it moves in the X direction.

Therefore, when the lens drive motor 57 rotates, the lens 58 moves in the directions of the arrows X and Y, and moves to a predetermined lens position designated according to the magnification ratio.

In addition, 74 is a lens home sensor, and bracket 6
By detecting a detection filler 75 fixed to one end of the lens 7, the home position of the lens (for example, the same magnification position) is detected.

FIG. 5 is a sectional view showing an example of a size detection means for detecting the size of transfer paper set in the paper feed cassette 2 (corresponding to 2A to 2c in FIG. 1).

In this paper feed cassette 2, paper guides i to 76, which regulate the rear end position of the stored transfer paper P, can be fixed at multiple locations (three locations in this example) at different locations in the direction of arrow E. The lower part of the paper guide 76 is engaged with a notch 78b formed in the holding plate 78a, and the upper regulating part 78a of the paper guide 76 is engaged with the paper guide 76 as the transfer paper P stored in the cassette case 78 of the paper feed cassette 2 decreases. It projects upward through a notched groove 79a formed in a bottom plate 79 that is raised by a lifting mechanism (not shown).

A light shielding portion 7E formed at the lower end of the paper guide 76
ib, two sensors 77A and 77B, which are, for example, transmission type photosensors, are arranged with their positions shifted in the direction of arrow E.
The paper size of the transfer paper P in the paper feed cassette 2 is detected based on the combination of the detection signals.

That is, in the case of the transfer paper size detection means using two sensors as shown in FIG. 5, A4. B4. It can detect three types of paper sizes, including A3.

That is, the paper guide 76 is located at the position shown by the solid line in FIG.
In the case of a certain A4 small size, the light shielding part 78b is not detected by either sensor 77A or 77B, and the detection signals are both at the L level, and the intermediate size (shown by the imaginary line)
In this example, when the size is B4), it is detected by only one sensor 77A and only its detection signal becomes H level, and when it is A3 size, it is detected by both sensors 77A and 77B, and both detection signals become H level. .

Switching unit FIG. 6 is an enlarged perspective view of the switching unit 22 of FIG. 1.

This switching unit 22 has a main reversing roller 81 rotatable in the direction of the arrow F, a front roller 82 and a rear roller 83 as shown in the arrows G and H.
They are pressed together so that they can rotate in each direction, and the front roller 8
2 and the rear roller 83 are respectively supported by a front roller shaft 84 and a rear roller shaft 85, and the front and rear roller shafts 84, 85 are rotatably supported by a front roller drive arm 86 and a rear roller drive arm 87, respectively.

The front and rear roller drive arms 86, 87 are pivotally supported at substantially the center by shafts 88 and 8, respectively, and normally have springs 78, 87 respectively engaged at one end thereof.
The front roller drive arm 86 is urged to rotate in the direction opposite to the arrows 78 and J in FIG.
The other end is pivotally connected to the movable shaft of the solenoid 91.

Therefore, when the solenoid 91 is turned on, the front and rear roller drive arms 86 and 87 rotate in the directions indicated by arrows ■ and J in FIG.
They move from the positions shown by solid lines to the positions shown by imaginary lines in the figure, and open the space between them to open the reversing conveyance path 92.

On the other hand, the branch claw 93 has an arcuate guide surface 93a at the top and a lever part 93b at the bottom.
One end of the spring 94 is attached to b, and the other end is attached to the movable shaft of the solenoid 95, and returned to the lever part 93b, and one end of the spring 96 is attached to the opposite side of the spring 94, so that the solenoid 95 is in the OFF state. At the time of , the position is as shown by the imaginary line in FIG.

Therefore, when the solenoid 95 is turned on, the branch claw 9
3 rotates in the direction indicated by the arrow in Fig. 7 to the position shown by the solid line, and the conveyance path 97 leading to the duplex unit 23 (Fig. 1) opens, and when it is turned off, it branches due to the return force of the return spring 9. The claw 93 returns to the position indicated by the imaginary line, and the conveyance path 98 leading to the finisher 30 is opened.

The solenoids 95 and 91 are connected to the operation panel 4.
It is driven in the following four ways depending on the instruction contents specified by 0 (FIG. 2).

■After fixing the transfer paper, use the finisher 30 as it is.
When transporting to
, 8 are both located at the positions indicated by solid lines in Fig. 7, and the branch claws 9
3 is at the position indicated by the imaginary line, so the transfer paper is in the conveyance path 98.
and is transported to the finisher 30.

■After fixing the transfer paper, turn it over and use the finisher 30.
When conveying to the machine, the solenoid 91 is turned on and both the front and rear rollers 82 and 83 are in the open position shown by the phantom line in FIG. Therefore, the leading edge of the transfer paper rises and is conveyed once to the reversing conveyance path 92, and then descends from the rear end side and passes through the conveyance path 98 to the finisher 50 while being guided by the arcuate guide surface 93a above the branching claw. transported.

=19- ■ When transferring the transfer paper to the duplex unit 2 after fixing it, the solenoid 91 is off, only the solenoid 95 is on, and both the front and rear rollers 82 and 83 are closed (Fig. 7). In the solid line state), the branching claw 93 is in the upright position shown by the solid line in FIG.

■After fixing the transfer paper, turn it over and transfer it to the duplex unit 23.
91 and 95 to both solenoids 1 are turned on, the front and rear rollers 82 and 83 are in an open state (the state shown by the imaginary line in Fig. 7), and the branch claw 93 is also in an upright state (the state shown by the solid line in Fig. 7). ), the transfer paper is once conveyed from the leading edge into the reversing conveyance path 92 as in the case of (2) above, and then descends from the rear end, is reversed, and is guided to the left edge of the single-branch claw 93. Conveyance path 9
7 and is transported to the duplex unit 23.

In addition, reference numeral 101 in FIG. 7 is a fixing jam sensor, which detects a jam in the fixing section, and also operates solenoids 91 and 95 that operate the front and rear rollers 82, 8 rollers and branch claw 96.
It is also used as an input signal to determine the timing of activation.

Detailed Description of Finisher Next, the finisher 30 will be described in detail with reference to FIG. 1 and FIGS. 8 to 10.

Copied transfer paper PE that has undergone the above-mentioned copying process
is conveyed into the finisher 30 from the conveyance path 98 of the copying machine main body 20 shown in FIG. The entrance of the transfer paper and the size of the transfer paper are simultaneously identified by a method which will be described later, and the transfer paper is sent to the belt conveyance section 10'2 which rotates in the direction of the arrow of the reference position changing unit 25.

As shown in FIG. 8, the reference position changing unit 25 has a belt conveying section 10 placed between the left and right reference walls 107 and 108, and parallel to the upper surface 106a of the belt conveying section 106 above the belt conveying section 106. A guide plate 109 is provided. Then, a notch hole 10 is formed approximately in the center of the guide plate 109.
9a, on which a reference changing roller 111 rotatable in both directions (positive) and φ is provided so as to be able to move in and out.

The reference changing roller 111 is rotatably supported by a support lever 113 that is allowed to move only in the vertical direction by an elevating guide 112. The dowel pin 114 is engaged with a long hole formed in one end of a swing lever 116 whose central portion is swingably supported by a pin 115, and the other end of the swing lever 116 is connected to a movable shaft of a solenoid 117 with a pin. They are engaged via 118.

In the normal off state, the movable shaft of this solenoid 117 is projected downward by a tension spring 119 that is engaged with one end of the swing lever 116, so that the swing lever 116 swings downward to the right in FIG. When the reference change roller 111 rises via the support lever 113 and separates from the belt upper surface 106a of the belt conveying section 106, and the solenoid 117 is in the ON state, the swing lever 116 swings in the opposite direction. The reference changing roller 111 contacts the belt upper surface 106a with a predetermined pressure that does not interfere with the conveyance of the transfer paper PE by the belt conveyance section.

Further, around the notch hole 109a of the guide plate 109,
A plurality of ball receivers are formed at predetermined intervals, and the balls 119 are removably engaged therewith, and the transfer paper P is transported into the reference position changer knit 25 by the belt transport section 106. The upper surface is guided by each ball 119.

Note that the reference change roller 111 is the conveyance roller 105 (first
(Figure) is rotated by a main motor (not shown) that drives the main motor.

In this vending machine 30, when performing stapling processing, the switching claw 26 is switched to the position shown by the solid line in FIG. 1, and the copied transfer paper is conveyed to the stapling processing section 28 while being reversed.

The stapling processing section 28 includes a stacker section 120 on which the transferred transfer paper PE is placed, and a shifting roller unit 130 that moves the transfer paper PE to one side and aligns one side edge according to the stapling position. and a stapler unit 150 for stapling the transfer sheets, a stacker section 1208 and a conveyance path 12 for conveying the transfer sheets PE.
A sensor 122 is provided near the end of 1.

As shown in FIG. 9, in the stacker section 120, a plate-shaped stacker 125 with both ends bent downward is fixed between the left and right reference walls 123 and 124. , an opening 125a that allows the conveyor belt 12B to slightly protrude from below to the upper surface of the stacker is formed to be long in the conveyance direction (horizontal direction in FIG. 1).

A shifting roller unit 130 is provided above the stacker 125 so as to be movable in the direction of arrow M in FIG. 9 by engaging with a guide member (not shown).
A rack 13 is installed on the top of a unit case 131 that covers the entire unit 0.
A pinion 134 fixed to the rotating shaft of a forward/reverse motor 133 is engaged with the rack 132.

On the other hand, inside the unit case 131, a lifting guide 135 is provided.
A side shifting roller 137 is rotatably supported at the lower end of a support lever 136 that is allowed to move only in the vertical direction. A swing lever 141 that is swingably supported by a pin 139 is engaged with a long hole formed in one end, and the other end of the swing lever 141 is engaged with a movable shaft of a solenoid 142 via a pin 143. ing.

In the normal OFF state, the movable shaft of the solenoid 142 is projected downward by the tensile force of the tension spring 148 that is attached to one end of the swing lever 141, so that the swing lever 141 is tilted downward to the right in FIG. The horizontal shifting roller 137 swings upward via the instruction lever 136, and the upper surface of the stacker 125 (or the upper surface of the transfer paper if there is transfer paper)
When the solenoid 142 is in the ON state, the swing lever 141 swings in the opposite direction, and the side shifting roller 137 contacts the upper surface of the stacker 125 with a predetermined pressure.

Then, the timing heald 1 stretched between the pulleys is rotated by the rotation of the forward/reverse motor 144.
45, it is rotated in both forward and reverse directions.

Note that 146 and 147 are fixed positioning sensors (for example, transmission type first to sensor), and when the transmission of light from the detection section is blocked by projections 131a and 131b formed at both ends of the upper part of the unit case 131, , detects to stop the movement of the roller unit I-130.

The mounting positions of the positioning sensors 14B and 147 are such that when the smallest size transfer paper used in the copying machine main body 20 (FIG. 1) is conveyed onto the stacker 125, The positional relationship is set in advance so that the rollers 137 can definitely come into contact with each other.

Further, as shown in FIG. 1, the conveyor belt 126 is provided with a protrusion 126a on a part of its outer periphery, so that when the conveyor belt 126 rotates in the direction of the arrow, the transfer paper on the belt is
E can be more reliably discharged onto the lower paper discharge l/ray 27.

FIG. 11 is an explanatory diagram showing an example in which the size of transfer paper is identified by the population sensor 24.

The entrance sensor 24 includes, for example, two reflective photosensors 24A and 24B arranged at a predetermined interval in a direction perpendicular to the paper feeding direction indicated by arrow N in FIG. The sensor 24A is attached to an A4 sheet that is conveyed horizontally with one side edge along the conveyance guide 148.
~The sensor 24B is placed at a position where it detects the passage of all A3 size transfer paper (including B5 size or smaller if used), and the sensor 24B is placed at a position where it detects only the passage of A3 size transfer paper. .

Each transfer paper is the population sensor 24A.

When passing through 24B, the transfer paper presence/absence detection signals from these sensors (present = H level, absent = L level) are detected.
The transfer paper size is identified by the combination shown in the table below.

In addition, in the table, sensor 24A is at "H level" and sensor 24A is at "H level".
If 4B is "L level", transfer paper should be A4 or B.
4 cannot be determined, so in this combination, the sizes of A4 and B4 are identified by comparing the transfer paper passing time (time from H to L).

The finisher 30 is configured as shown in ``2'', so for example, if two sheets of copy paper are successively fed into the finisher 30 and left binding is instructed, first the first The entrance sensor 24 detects the first sheet of transfer paper using the method described above and identifies the size of the transfer paper.

When the transfer paper P passes the entrance sensor 24, it is conveyed onto the bell h l 06 a of the belt conveyance section 106, but at this time, since the solenoid 117 in FIG. 8 is in the OFF state, the reference change roller 111 is in the second raised position and is away from the belt 108 a l, so the transfer paper PE
is conveyed while its upper surface is guided by the ball 119.

Note that when the transfer paper PE enters the belt conveyance section 1081, the transfer paper PE is conveyed (
left side reference).

Since the staple mode is selected, the transfer paper PE is conveyed while being reversed via the switching claw 26 shown in FIG.
Forward/reverse motor 144 of the shifting roller unit 130 in FIG.
rotates, the solenoid 142 is turned off, and the reference changing roller 111, which is in a raised position from the illustrated position, rotates in the direction of the arrow Q, and the transfer paper PE is transferred to the stacker 12 in FIG. 9 as it is.
5, the tip thereof abuts against the abutment surface 150a of the stapler unit 150 shown in FIG. 1, and the tips are aligned and stopped.

After that, the solenoid l-' 142 shown in FIG. 9 is activated (turned on), and the side shifting roller 137 rotating in the direction of arrow Q descends and presses against the transfer paper PE, so that the left edge of the transfer paper is brought into contact with the reference wall. 123 (two sheets of human-sized transfer paper are shown in FIG. 9 for convenience of illustration), and a final alignment operation is performed.

Note that the reason why the final alignment operation is performed by the side alignment rollers 137 is that the left edge of the transfer paper is conveyed along the reference wall 107 in the reference position changing unit 25 as well. During the long conveyance path from the document tray 1 to the stacker 125 in the finisher 30, slight positional deviations may occur due to skew, etc., so it is necessary to correct them to improve alignment. ” This is to make people feel like “Ni.”

Next, when the second sheet of transfer paper is fed into the finisher 30, its size is identified by the entrance sensor 24 as in the case described above, and then the reference position change unit 25
inside along the left reference wall 107 (FIG. 8),
1 which is conveyed to the stacker section 120 while being reversed via the switching claw 26 and stacked on the stacker 125.
It is stacked on the first sheet of transfer paper.

Then, its tip is aligned with the abutting surface 150a (FIG. 1) of the stapler unit 1-150, and its left edge is aligned with the reference wall 123 by the reference changing roller 111 as in the case described above, and then it stops.

Finally, after the stapler 61 shown in FIG. 1 operates to perform a predetermined stapling process, the conveyor belt 126 rotates in the direction of the arrow to remove the transfer paper PE whose left edge has been completed.
is discharged onto the lower paper discharge tray 27, and all processing is completed.

The above is a case in which the copied transfer paper is edged to the left. Next, a case in which this transfer paper is edged to the right will be explained.

First, transfer the copied transfer paper PE to the finisher 3.
0, the population sensor 24 detects the transfer paper P.
Identify the size of E.

Then, for example, by detecting the leading edge of the transfer paper by the population sensor 24 (a method using other signals may be used), the forward/reverse motor 133 in FIG. Move everything to the right.

When the protrusion 131b on the unit case 131 of the shifting roller units 1 to 130 is detected by the positioning sensor 147, the forward/reverse motor 133 is stopped.
The shifting roller unit 130 stops at the position shown in FIG.

Note that at this time, the solenoid 142 is in the off state, so
The side shifting rollers 137 are in the raised retracted position. Furthermore, if the shifting roller unit 130 is in the position shown in FIG. 10 from the beginning (in some cases, the control is such that the shifting roller unit 130 does not automatically return to the position shown in FIG. 9 after copying is completed), Since there is no need to rotate the motor 163, the motor 133 is left in a stopped state.

In addition, after a predetermined time after the population sensor 24 detects the transfer paper, that is, when the transfer paper PE reaches the position below the reference change roller 111 in the raised position by the belt conveyance unit 106, the solenoid 117 is activated ( On) The reference changing roller 111 rotating in the direction of the arrow in FIG. 8 descends from its raised position to the upper surface of the transfer paper PE.

Therefore, as shown by the solid line in FIG. 8, the transfer paper PE is moved along the right side reference wall 108 by the reference changing roller 111 while its right edge is abutted against the right reference wall 108.
Fig. 1).

Then, the transfer paper PE is conveyed while being reversed through the switching claw 2, and when the sensor 122 detects its leading edge, the forward/reverse motor 144 in FIG. When the solenoid 142 is turned off, the side shifting roller 137, which is in a raised position from the illustrated position, rotates in the direction of arrow U, and the transfer paper PE is directly transferred to the stacker 12.
5, the tip thereof abuts against the abutment surface 150a of the stapler unit 150 shown in FIG. 1, and the tips are aligned and stopped.

Thereafter, the solenoid 142 is activated, and the arrow U in FIG.
The horizontal shifting roller 137 that rotates in the direction descends and transfers the transfer paper PE.
The right edge of the transfer paper is pressed against the right reference wall 1.
24 (two sheets of human-sized transfer paper are shown in FIG. 10 for convenience of illustration), and a final alignment operation is performed.

Note that the operating time (on time) of the solenoids 117 and 142 is varied depending on the size of the transfer paper detected by the entrance sensor 24, so that one side edge of the transfer paper can be aligned in an optimal state for each size. We are making it possible to do so.

Next, when the second sheet of copied transfer paper PE is similarly fed into the finisher 30, it is transferred to the population sensor 24.
The size is identified by , and as in the case of the first sheet, the sheet is conveyed while changing the conveyance reference to the right side reference wall 108 (FIG. 8) by the reference changing roller 111 in the reference position changing unit 25 .

Then, it is conveyed to the stacker section 120 while being reversed through the switching claw 2, and is stacked on the first sheet of transfer paper stacked on the stacker 125, so that the leading edge of the paper is stuck by the stapler unit 1-150. Abutment surface 150a
(FIG. 1), and the right edge thereof is aligned with the reference wall 124 and stopped.

Finally, after the staple 31 shown in FIG. 1 operates and performs a predetermined stapling process, the conveyor belt 126 rotates in the direction of the arrow, and the transfer sheet with the right edge completed is transferred to the lower discharge sheet 1. - Ejected onto the ray 27 and all processing is completed.

In addition, when using transfer paper of a different size from the above-mentioned transfer paper and applying left edge, the position of the right edge of transfer paper PE is as shown in Figure 9, and when using right edge, the position of As shown in Figure 10, the position of the left edge of the transfer paper PE is only shifted by the amount corresponding to the size width, and the finisher 30
The operation of each part within is the same as in the previous case.

[Margin below]

11 and 12 are block diagrams of the control section of the original circulating type copying apparatus constructed as described above.

The copying apparatus of this embodiment is comprised of a circulating automatic document feeder (RDH) 10, a copying machine main body 20, and a finisher 60, as shown in FIG.

Therefore, the control section shown in FIG.
It is composed of 0.

The copying machine main body control section 200 inputs the copy mode and displays various types of information, and also includes an operation panel 40 shown in FIG. 2 having a main switch 41, and a power supply section that supplies DC voltage to each part of the copying machine. 201, and a paper feed control unit 202 that controls the three paper feed trays 2A to 2C. A plurality of unit controllers such as a lens controller 203 that controls the lens drive motor 57 for moving the lens 58 in FIG. 4 when changing the magnification ratio, and a main controller 210 that controls each of these controllers. It is configured.

Then, the RDH control section 300 and the finisher control section 4
00 are control signal interface lines 208, 2, respectively.
07 to this main control section 210.

Figure 13 is a block circuit diagram showing details of the copying machine main body control section 200.

The main control unit 210 includes timers 211 and 212 having a plurality of timer and counter functions, ROMs 213 and 214 in which control programs are stored, a RAM 215 that temporarily stores control data, and unit control units such as an operation panel 40. and l10218-2 that performs input/output control between the RDH control unit 300 and the finisher control unit 400.
21, driver buffer arrays 222, 223,
It is composed of drivers 224, 225, buffers 226 to 228, a pass line 229 connecting these, CPtJ4';Q that controls these, a reference oscillator 231 for a control clock, and the like.

In addition, 232 and 235 are timers 21 used for 1mSec interrupt control and 10mSec interrupt control, respectively.
1 IKHz and 100 Hz output signal lines.

The operation panel 40 includes a section 1040a that performs input/output control with the main control section 210, an operation key section 40b, and a display section 4.
0c, a main switch (5W power supply) 41, etc. are provided.

The lens control unit 206 includes a main control unit 210 that performs input/output control, a lens home sensor 74 (see FIG. 4) that serves as a reference position when driving the lens, and a driver 237 for driving the lens drive motor 57. It is composed of etc.

The paper feed control unit 202 includes three similar control circuits 240a,
240b and 240c, and each control circuit includes a circuit 10241 that performs input/output control with the main control section 210.
, size detection sensors 77A and 77B shown in FIG. 5 that detect the transfer paper size, a transfer paper feed clutch 242, and the like.

95 is the branching solenoid shown in FIG.
01 is the fixing jam sensor shown in FIG. 7, 251 is the first
This is a double-sided empty sensor that detects that the inside of the double-sided unit 23 shown in the figure is empty.

Circuit Groove of RDH Control Section FIG. 14 is a block circuit diagram showing details of the RDH control section 300.

301 is a main control unit of the RDH control unit 300;

Timer 3 (12, RAM 304 in which the RDH control program is stored. RAM in which control data is temporarily stored)
304. Input/output control unit 305. and a path line 306 that connects these and a CPU that controls each of these blocks.
307, a reference oscillator 308 for its control clock, etc., one-chip microcomputer 310
, output 1 to drivers 311 to 313, and input buffer 3
14 to 316, and a control signal interface line 206 with the copying machine main body control section 200.

56 is a filler set motor of the document final page detector 45 shown in FIG.

320 is a motor for feeding and conveying the original, 321 is a conveyance heald turbulence motor, and 322 is a conveyance belt drive motor 3.
This is a rotation detector that rotates in synchronization with 21.

A speed control circuit 323 controls the speed of the conveyor belt drive motor 321 based on the speed signals of the conveyor belt 1 to the rotation motor 321 detected by the rotation detector 322 .

37A and 37B are two reflective photosensors that constitute the document detector 37 shown in FIG. 3, and are arranged in the same way as the sensors 24A and 24B shown in FIG. 11, and are capable of detecting three types of document sizes. is possible.

That is, when the size is the largest (A3), both photosensors 37A and 57B are turned on.

When the size is small (A4) and medium size (B4), only the photosensor 37A is turned on, and A4 and B5 are distinguished by the difference in the time it is turned on.

4O-45c is a photointerrupter of the document final page detector 45 shown in FIG.

FIG. 15 is a block circuit diagram showing details of the finisher control section 400.

401 is a main control unit of the finisher control unit 400;
A timer 402 having multiple timer functions; a RAM 304 in which a finisher control program is stored; RAM 404 for temporarily storing control data. Input/output control section 4
05 to 407 and a pass line 408 connecting these blocks, a one-chip microcomputer 410 composed of a CPU 409 that controls each of these blocks, a reference oscillator 409x for a control clock, etc., output drivers 411 to 418, and an input It is composed of buffers 421 to 426, a control signal interface line 207 with the copying machine main body control section 200, and the like.

Further, 430 is a paper ejection clutch for ejecting the stapled and copied transfer paper to the ejection tray 27.

431 is a staple solenoid F for operating the stapler 61; 142 is a solenoid for bringing the horizontal shifting roller 137 shown in FIGS. This is a solenoid that operates the reference changing roller 111 shown in FIG. 8 for changing the reference.

That is, in the case of left-hand binding, the 08 hours of the solenoid F 117 are varied depending on the copy size, thereby accurately changing the conveyance standard.

Reference numeral 133 denotes a forward/reverse motor that changes the set position of the collapsing roller unit l-1' 30 shown in FIGS. It is a transistor.

That is, when the output of the 1-rhyme 415 is set to H° in order to turn on the transistors TRI and TR4, the forward/reverse motor 133 rotates clockwise (clockwise) and moves towards the reference position with the shifting roller unit 130 to the right. Move to.

Also, when transistors TR2 and TR3 are turned on and the output of the fast driver 416 is set to H, the forward/reverse motor 133
rotates counterclockwise (left rotation), and the shifting roller unit 1
30 toward the left binding reference position.

Reference numeral 144 denotes a forward/reverse motor (shifting roller drive motor) that moves the side shifting rollers 1 and 7 shown in FIGS. 9 and 10 in the forward and reverse directions. This is a switching transistor for driving.

In the case of left side, transistors TR5 and TR8
When the output of the driver 417 is set to H° to turn on,
The forward/reverse rotation motor 144 rotates in the cutting direction (clockwise rotation).

In addition, in the case of right-hand side, transistors TR6 and TR7
When the output of the driver 418 is set to H° to turn ON, the forward/reverse rotation motor 144 rotates counterclockwise (leftward rotation).

450 is a main drive synchronous motor (main motor) of the finisher 30, and 451 is an O of this main motor 450.
Solid stay 1~relay that controls N/○FF.

24A and 24B are transfer paper size detectors using two reflective photosensors shown in FIG. 11 that constitute the population sensor 24 shown in FIG. 1, and are capable of detecting three types of sizes.

In other words, at the maximum size (A3), the photo sensor 24A
, 24B are both turned ON.

Since only the photosensor 24A is turned on when the size is the minimum size (A4) and the medium size (B4), A4 and B4 are distinguished from each other based on the difference in the time that the photosensor 24A is turned on.

Further, the detection signal of the photosensor 24A serves as a reference for subsequent control within the finisher 30.

152 is a solenoid for bringing the side shifting roller 137 of the shifting roller unit 130 shown in FIGS. 9 and 10 into contact with the transfer paper PE, and 142 is a paper discharge sensor that serves as a reference for drive timing.

After the paper discharge sensor 152 detects the leading edge of the transfer paper, the solenoid 142 described above is turned on after a predetermined time.

Reference numerals 146 and 147 are positioning sensors for right binding and left binding of the shifting roller unit 130 shown in FIGS. 9 and 10, respectively.

Next, the operation of this embodiment will be explained according to the flowcharts shown in FIGS. 16 to 25.

16 to 18 regarding the control operation of the copying machine main body 20 by the copying machine main body control section 200 shown in FIG. 13.
This will be explained using the flowchart shown in the figure.

When the main switch 41 of the operation panel 41 is turned on, the main control section 210 of the main control section 200 of the copying machine main body
DC voltage (+5V and +24V) is supplied from 10,
The control program starts.

First, as shown in the flowchart of FIG. 16, there is a subroutine for setting initial data and initial motes necessary for controlling this copying apparatus: initial setting (■).

and a subroutine for setting the magnification ratio to the initial magnification (for example, 100%): executes the initial setting of the magnification ratio.

Next, a subroutine for checking the input state of the operation key part 41b on the operation panel 40: operation key manual check is executed, and input data, mode 1 (etc.) are determined.

Then, a staple signal, which is a finisher-related signal,
The copy number data and the finisher (right/left) binding signal are output to the finisher 60 according to the result of the operation key manual check, and the process moves to the transfer paper size check subroutine.

In this routine, size detection sensors 77A, 77B,
(See Figure 5)
Determine the transfer paper size within 2C.

The next step is to determine whether the various conditions of the copying machine main body 20 are determined and whether the copying machine is ready for copying (main unit ready).
In the case of No, the subroutine for controlling the copy standby state of the copying machine main body 20: the copy standby process is executed, and then the process returns to the above-mentioned operation key manual check subroutine.

If YES, then it is determined whether automatic magnification selection mode (AMS mode) is set.

If YES, it is then determined whether or not it is Print 1~Start, that is, whether the print key 42 in FIG. In this case, the AMS copy mode is executed by executing the AMS mode process subroutine, and after copying is completed, the copy end process subroutine is executed to perform the final copy processing, and then the operation key manual check subroutine is returned to to perform the next copy. Prepare for.

By the way, if the determination result of AMS mode is No,
Next, it is determined whether automatic paper selection mode (APS mode) is set.

If the judgment result is No, then print star 1
..., and if NO, return to the operation key manual check subroutine, and if YES, execute the copy standard process subroutine to perform copying in normal copy mode, and after copying is complete, perform final processing. After executing the copy end process subroutine, the process returns to the operation key manual check subroutine to prepare for the next copy.

If the determination result of the APS mote is YES, the process shifts to the process shown in the flowchart of FIG. 17.

First, it is determined whether or not to start printing. If NO, the process returns to the operation key manual check subroutine shown in FIG. 16, and if YES, a finisher start signal is output.

Next, the APS mode copy creation process, APS
Clear the PR count that counts the number of times process (m) has been executed, and also clear the OR counter that is a document counter.

Next, execute the interrupt counter initialization sub=48- routine that initializes the interrupt counter used as a control counter, and then
Clear the O counter.

Then, it executes a subroutine that controls the APS process (1), which is a copy process before outputting a feed signal from the circulating automatic document feeder (RDH) 10, and then determines the output timing of the feed signal and selects No. If so, the subroutine of the APS process (I) is repeatedly executed, and if YES, the process moves to the next step.

In the next step, a feed signal is first output, and "1" is added to an OR counter, which is a document counter.

Next, run the APS process (II) that controls the copy process during RDHIO document exchange, and then
It is determined whether the BUSY signal is output from the BUSY signal.

If YES, the subroutine of the APS process (II) is repeatedly executed, and if NO, the process moves to the next step.

The next step is to turn off the feed signal and RDH
After taking in the original size data from IO, a subroutine for checking the copied original size (B-CPID) is executed.

B-C: PID stores all the original size data that has been copied, and this size data is compared with the original size data imported from RD (10) in the previous step, and the original size data of the same size is compared. 1 exists, sets a skip flag (F.5KIP) that determines whether to skip the copying process of the original document.

Then, in the next step, the skip flag (F
-3KIP) is set, and if it is set, the subsequent copy process is skipped, the process returns to the interrupt counter initialization subroutine, and processing is executed for the next document.

If the skip flag (F-8KIP) is not set, compare the transfer paper size data in the paper size buffer with the original size data from RDHIO, and if both data are equal, proceed to the process shown in the flowchart in Figure 18. If the two data are different, the process returns to the interrupt counter initialization subroutine.

In the flowchart in Figure 18, first the PR counter is set to "
1'' is added, and then the subroutine of the APS process (Ill) is executed.

This subroutine is a routine that controls the process of making a copy of a document set on contact glass 1, and one copy is made by executing it once.

Next, add "1" to the GO counter, and in the next step,
Check whether the contents of the O counter match the copy number data set by the operation key manual check subroutine shown in FIG.
copy end).

If the answer is No, the subroutine of the APS process (ffl) is repeatedly executed.

If YES, then it is determined whether the document end signal is output from RDHIO, and if NO, the 17th
Return to the interrupt counter initialization subroutine shown in the figure, and Y
In the case of ES, copy original size buffer (B-
CPID) to paper size buffer (B-PAPER)
Set the transfer paper size data within.

Next, the contents of the PR counter and the OR counter were compared, and if the two data were different, the process returned to clearing the OR counter in Figure 17, and if they were equal, the subroutine of the copy end process was executed to control the final processing of the copy process. After that, return to the operation key manual check subroutine in Fig. 16 and prepare for the next copy.
The control operation of the circulation type automatic document feeder (RDH) 10 by the RDH control section 300 shown in FIG. 4 will be explained with reference to the flowcharts shown in FIGS. 19 to 21.

FIG. 19 shows the main flow of RDH control.

When the main switch 41 of the copying machine is turned on, the RDH
As shown in FIG. 12, DC voltage (+5V and +24V) is supplied to the main control unit 01 of the control unit 300 from the power supply unit 201, and the control program is started.

First, an initialization subroutine is executed to set initial data and mode necessary for controlling RDHlo.

Next, control mode 1 to flag (
RMODE), and if RMODE is set, a free run recycle mode subroutine is executed, and if it is not set, a copy recycle mode subroutine is executed.

The free-run recycling mode is a mode in which the originals stacked on the RDHlo original tray 1 are sequentially circulated, the size of each original is detected, and the information is output to the copying machine main body 20.

Therefore, the copy making process of the copying machine main body 20 does not operate.

The copy recycling mode is a mode in which the originals are sequentially circulated based on a feed signal, which is a document feed control signal, from the copier main body 20, and the copy machine main body 20 executes the copy creation process in synchronization with the RDHICI. be.

Each mode will be explained in detail below.

FIG. 20 is a flowchart showing the processing contents in the free run recycle mode subroutine.

First, turn on the motor 321 for moving the conveyor bell 1 to the moving motor 321.

Next, RDH10 outputs the RDHBUSY signal, which is a control signal indicating that the document is being replaced, to the copying machine main body 20, turns on the document feed conveyance motor 320, and moves to the next step.

In the next step, it is checked whether the document size sensor 57A is ON (whether the document is detected), and if No, the check of the document size sensor is repeated.

If YES, the process moves to the next step, and after turning off the document feed conveyance motor 320, the document size check subroutine is executed.

In this subroutine, the document size sensor 37B
to detect the original size.

Then, in the next step, the document size data just detected is output to the copying machine main body 20.

Next, in order to check whether the final page of the document has been fed, the photo interrupter 45c of the final page detector 45 is activated.
(See Figure 3) Check whether it is ON.

If No, there are still manuscripts that have not been circulated, so
After the document size sensor 37A is turned off, the process returns to the process of turning on the document feeding and conveying motor 320.

If YES, the timer 1 is started, and after the timer 1 times up, the timer 1 is reset and the conveyor belt drive motor 321 is turned off.

The value of timer 1 is set to a time that is sufficient for the document to be ejected onto document tray 1 (see FIG. 3).

Next, the filler set motor 5 of the last page detector 45 is turned ON, the timer 2 is started, and after the timer 2 times up, the timer 2 is reset to 1 and the filler set motor 56 is turned OFF.

The value of this timer 2 is determined by the filler 45 of the last page detector 45.
8 is set to a time sufficient for reaching the top of the originals placed on the originals 1 to ray 1.

Next, RDHlo outputs a control signal RDHREADY indicating that the original replacing operation has been completed to the copying machine main body 20, and the process returns to the main flow of FIG. 19.

FIG. 21 is a flowchart showing the processing contents in the copy recycle mode subroutine.

First, it is checked whether a feed signal, which is a document replacement request control signal, has been output from the copying machine main body 20. If it has not been output, the process returns to the main flow shown in FIG. 19.

If it is output, move to the next step and RDHBU
The SY signal is output to the copying machine main body 20, and the next conveyor belt and drive motor 621 are turned on.

Finally, check the photo interrupter 45c of the last page detector 45. Then, the photo interrupter 45c is
NL, if not, first set the document feed conveyance motor 32.
0 is turned ON, then the document size sensor 37A is checked, and if ONL, the process moves to the next step.

In the next step, the document feed conveyance motor 320 is turned off.
Make it FF.

Also, if the photo interrupter 45c is ON or not, if YES, the filler set motor 5 of the last page detector 45 is turned ON, the timer 2 is started, and after the timer 2 times up, the timer 2 is reset. Then, the filler set motor 56 is turned off, the original end signal is output to the copying machine main body 20, and the timer 1 is started.

After this timer 1 times up, the timer 1 is reset and the conveyor belt drive motor 321 is turned off.
FF and RDHBUSY signal OFF. Then return to foot signal check.

Control Operation by Finisher Control Unit Next, the control operation of the finisher 30 by the finisher control unit 400 shown in FIG. 15 will be explained with reference to the flowcharts shown in FIGS. 22 to 25.

When the main switch 41 of the copying machine main body 20 is turned on, DC voltage (+5■ and +24■) is supplied from the power supply section 201 to the main control section 401 of the finisher control section 400 as shown in FIG. 12, and the control program is started. Start.

First, in the flowchart of FIG. 22, an initial setting subroutine for setting initial data and motes necessary for controlling the finisher 30 is executed.

Next, it is checked whether a start signal is output from the copying machine main body 20, and if it is not output, the main motor 450 is turned OFF, and the forward and reverse rotation of the collapsing roller units 1 to 130 shown in FIGS. 9 and 10 is performed. Turn off motor 133
After changing to F, return to check the start signal.

If the start signal is output, then the human power sensor 24
It is checked whether the transfer paper has reached position A (ON), and if YES, the process moves to the next step.

In the next step, first set an arbitrary value TIMA to timer 1.
Start after setting. The value of TIMA is set to the time required for the leading edge of the transfer paper to reach the reference position changing unit 25 (see FIG. 1) after passing the input sensor 24A.

Next, a register CO counter that counts the number of transfer sheets passing through the input sensor 24A is incremented.

Then, a size check subroutine is executed. In this subroutine, input sensors 24A, 24B
Determine the transfer paper size based on the output.

Next, a subroutine for controlling the shifting roller unit 130 is executed, and the process moves to the next step.

In the next step, the value of timer 1 is
, check whether A has been reached (time up).

If the result is YES, timer 1 is reset and the process moves to the next step.

In the next step, it is first checked whether the transfer paper size is A3 or not, and if YES, the process branches to the paper discharge sensor check shown in FIG. 23.

If No, then check whether the right binding mode is selected.

The mote signal is output from the copying machine main body 20 to the finisher 30 via the control signal interface line 207.

If it is the right mode, the process branches to the discharge sensor check shown in FIG. 23.

If it is not the right binding mode, the process moves to the first process shown in FIG.

In the flowchart of FIG. 23, first, the solenoid 117 of the reference position changing unit 25 is turned on, and the process moves to the next step.

In the next step, it is checked whether the transfer paper size is A4, and if No, an arbitrary value 0NB4 is set in the timer 2, and then the timer 2 is started from 1 to 1.

If YES, set the arbitrary value ○NA4 to timer 2 and then start timer 2.

These arbitrary values 0NB4 and 0NA4 are B4 size, respectively.
It is set to the time required to optimally change the standard for A4 size.

Next, it is checked whether the timer 2 has reached an arbitrary value (time up), and if YES, the timer 2 is reset and the solenoid for changing the reference position is turned 117 OFF.

By executing the above flow, accurate reference position change control can be performed for each size.

Next, the paper discharge sensor 152 checks whether the leading edge of the transfer paper has reached the position of this sensor 152 or not.

If the paper discharge sensor 152 is ON, the process starts after setting the arbitrary value DELL in the timer 3, and moves to the next step.

The arbitrary value DELL of timer 3 indicates that the transfer paper is placed sideways at roller 11.
1,109b, etc. is set to the time required to reach 1,109b, etc.

In the next step, it is checked whether or not the timer 3 has timed up. When the timer 3 has timed up, a new arbitrary value DE L 2 is set in the timer 3, a start signal is given, and the process moves to flowchart 1 shown in FIG. do.

This arbitrary value DEL2 is set to the time necessary for the shifting roller unit 130 to optimally shift the transfer paper to the reference position, either to the right or to the left.

In the flowchart of FIG. 24, first, the solenoid 142 (see FIG. 9) of the shifting roller unit 130 is turned on.

Next, check whether the timer 3 has timed up, and when the time has expired, turn off the solenoid 142 of the above-mentioned roller unit, reset the timer 3, and then
Move on to the next step.

In the next step, it is checked whether the value of the C counter, which is a transfer sheet count register, matches the number of copies.

The data on the number of copies is output from the main body of the copying machine via the control signal interface line 207.

If they do not match, the process returns to checking the signal at star 1 in FIG. 22, and the above-described control operation is re-executed.

If they match, reset the CO counter and check whether it is in staple mode.

The staple mode signal is output from the copying machine main body 20 via the control signal interface line 207.

In the case of staple mode, turn on stipple solenoid 431 and set arbitrary value TIME to timer 4.
Start after ~.

This arbitrary value TIMB is set to the time required to staple the bundle of transfer sheets.

Next, it is checked whether or not the timer 4 has timed up. When the timer 4 has timed up, the timer 4 is reset, the staple solenoid 461 is turned OFF, and the paper ejection clutch 4 is turned off.
30 to ON and move on to the next step.

Further, if NO in the check of the stapling motor (2), the paper ejection clutch 430 is directly skipped to ON.

Next, after setting the arbitrary value T and MC in the timer 5, the process starts and moves to the next step.

This arbitrary value TlMC sets the transfer paper bundle after stapling to the first
This is set to the time required to discharge the paper to the paper discharge tray 27 shown in the figure.

In the next step, it is checked whether or not the timer 5 has timed up. When the timer 5 has timed up, the timer 5 is reset and the forward/reverse motor 1 of the shifting roller unit 130 is
After turning OFF 33, the process returns to checking the start signal shown in FIG. 22, and the above-described control operation is executed again.

Next, the processing contents of the control subroutine of the roller unit 1 shown in FIG. 22 will be explained with reference to FIG. 25.

The function of this subroutine is to change the position of the shifting roller unit 130 to its reference position by right binding or left binding.

First, it is checked whether right binding is being performed, and if YES, it is checked whether the right positioning sensor 147 is turned on.

In the case of NO, that is, the yosekoro unit h 1 ”S O
If it is not located at the right binding reference position, the forward/reverse rotation motor 133 of the shifting roller unit is rotated clockwise, and then the right positioning sensor is checked again.

When the right positioning sensor 147 is ON, the forward/reverse rotation motor 133 of the shifting roller unit is turned OFF, the other forward/reverse rotation motor 144 is rotated to the left, and then the process returns to the main flow shown in FIG. 22.

If the right binding check is No, it is checked whether the left positioning sensor 146 is turned on.

If No, that is, if the shifting roller unit 130 is not located at the left reference position, the forward/reverse rotation motor 133 of the shifting roller unit is rotated to the left, and then the left positioning sensor is checked again.

When the left positioning sensor 14 is ON, the forward/reverse rotation motors 133 of the moving roller units 1 to 1 are turned OFF, the other forward/reverse rotation motors 144 are rotated clockwise, and the process returns to the main flow shown in FIG. 22.

■Summary of Kanade 1 Since the manuscript circulation type copying apparatus of this embodiment is controlled as described above, manuscripts of a plurality of sizes are randomly mixed and stacked in the circulation type automatic document feeder 10. too,
When the circulating automatic document feeder 10 transports the first document to the exposure position of the copying machine main body 20, the document detector 37 detects the size of the document, and then circulates all the documents once. During this period, the copying machine main body 20 makes copies only for the originals of the same size as the first detected size, and originals of other sizes are sent to the circulation type automatic document feeder 10 without making copies. Return to position 1.

During the second circulation of mixed originals by the circulating automatic document feeder 10, the copying machine main body 20 copies only the original of the same size as the second one detected by the original detector 37. originals of other sizes are returned to the set position without making copies.

Similar processing is performed the number of times corresponding to the type of document size detected.

Then, each time copying of one type of original of the same size is completed, the finisher 30 binds and discharges the copied transfer sheets received during that time. Therefore, copies and bound documents are automatically obtained, sorted by document size.

〔Effect of the invention〕

As explained above, the original circulation type copying apparatus according to the present invention, the original circulation type automatic document feeder thereof, and the copy star 1 while the originals of a plurality of sizes are randomly mixed and set on the circulation type automatic document feeder.
. . , the copies are automatically sorted and bound by document size, so there is no need to sort the documents by size in advance, and work efficiency is greatly improved.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a manuscript circulating type copying apparatus showing an embodiment of the present invention, FIG. 2 is a sub-view of the operation panel thereof, and FIG.
FIG. 4 is a more detailed configuration diagram of the circulation type automatic document feeder 10 shown in FIG. 5 is a sectional view showing an example of the transfer paper size detection means in the paper feed cassettes 2A to 2c in FIG. 1, and FIGS. 6 and 7 are perspective views and operation explanatory views of the switching unit 22 in FIG. 1. , FIG. 8 is a sectional view of the main part of the reference position changing unit 25 in FIG. 1, and FIGS. 9 and 11 are the stacker section 120 in FIG. 1.
11 is an explanatory diagram showing an example of the entrance sensor 24 in FIG. 1, and FIG. 12 is a diagram showing the control section of this embodiment. A block diagram showing the overall configuration; FIG. 13 is a block circuit diagram showing details of the basic copy control unit 200 in FIG. 12; FIG. 14 is a block circuit diagram showing details of the RDH control unit 300 in FIG. 12; Figure 15 shows the finisher control section 400 in Figure 12.
FIG. 2 is a block circuit diagram showing details of the . 16 to 18 are flowcharts of control operations by the copier main body control unit 200, FIGS. 19 to 21 are flowcharts of control operations by the RDH control unit 300, and FIGS. 22 to 25 are flowcharts of control operations by the copying machine main body control unit 200. FIG. 4 is a flow diagram of a control operation by a control unit 400. FIG. 1... Document tray 2. 2A to 2C... Paper feed cassette 3... Contact glass 411. Optical system 5... Exposure lamp 10
... Circulating automatic document feeder (RDH) 13... Photosensitive drum 18... Fixing unit 20... Copying machine body 22... Switching unit 23... Duplex unit 24 (24A, 24B) ... Entrance sensor 25 - Reference position change unit 27 ... Lower discharge tray 28 ... Stipple processing unit 30 Finisher 3 Tostipler 33 ... Paper feed roller 36 ... Separation belt'';7 (37
A, 37B)...Document detector 38 Conveyance roller
39...Transport belt 40/operation panel 41
Main switch 42 Print key 45 Final page detector 45c Photo interrupter 50 Staple key 52 Ejection roller 56 Filler set motor 57 Lens drive motor 58 Lens 77A,
77B... Photo sensor for detecting transfer paper size 91.95...
Solenoid 117 of the switching unit... Solenoid 120 for changing the reference position ・Stacker section 130 ・Shipping roller unit 133 ・Forward/reverse motor 142 ・Solenoid 144 of the shifting roller unit...
- Forward/reverse motor 148, 147... Positioning sensor 150... Stapler unit 200... Copy machine main body control section 201... Power supply section 202... Paper feed control section 203... Lens control section 210... Main Control unit 30
0...RDH control section 301... Main control section 320
... Document feed conveyance motor 321 ... Conveyor belt rotation motor 400 ... Finisher control unit 430 ... Paper ejection clutch 431 ... Staple solenoid 450 ... Main motor a) u”+u) ()(] ■ C. Toto Figure 17 Figure 19 Figure 22 Figure 23 Procedure amendment (Own ship August 16, 1988 Director General of the Patent Office Yoshi 1) Moon Takeshi 1, Incident Indication of Japanese Patent Application No. 63-162948 2, Title of the invention: Original circulation type copying device 3, Relationship with the person making the amendment Case: Patent originator: 1-3-6 Nakamagome, Ota-ku, Tokyo (674) Co., Ltd. Ricoh 4, Agent 1-20-56 Higashiikebukuro, Toshima-ku, Tokyo 170 (Telephone 986-2380) Contents of the amendment (1) [Can be made in line 17, page 3 of the specification]. " is corrected to "can be done." (2) "Copy paper C" on page 9, line 17 of the same book is corrected to "transfer paper PDJI." (3) "Copy paper C" on page 37, line 6 of the same book is corrected. Change “Finisher” to “Finisher
Correct "Paper feed tray" in line 5 to "Paper feed cassette". (4) "Operation panel j" on page 39, line 4 and page 47, line 4 of the same book is corrected to "control panel J." (5) Same book, line 40, Shinyu line 19, page 42, line 17 row, 6th
"Interface line" in line 11 of page 1 and lines 3 and 11 of page 64 is corrected to "interface line." (6) In the same book, page 42, line 20, "ejection tray" is corrected to "r ejection tray." (7) "Paper feed tray" on page 47, line 16 of the same book is corrected to "paper feed cassette." (8) "Paper size buffer" on page 51, line 16 of the same book is corrected to "paper size buffer." (9) Ibid., p. 60, lines 2-3, lines 8, and lines 11. and "input sensor" in line 15 is corrected to "entrance sensor A." (10) "Circulating copying device," in line 12, page 68 of the same book.
(11) Correct ``Figure 11'' in line 13 of page 69 of the same book to ``Figure 10.'' (12) “Copy elementary control unit” in line 20 of Shinyu in the same book,
"Correct to copy machine main body control unit J. Above = 3-

Claims (1)

[Scope of Claims] 1. A copying machine main body that is provided with a plurality of paper feeding means for feeding transfer paper of different sizes, and that feeds appropriate transfer paper according to the original size to make a copy; a circulation type automatic document feeder that can mix and set originals of the copying machine, transport the originals one by one to an exposure section of the copying machine main body, and then return them to the setting position and circulate them; In the document circulation type copying apparatus, the document circulation type copying apparatus includes a finisher that automatically receives copied transfer paper produced by the above-mentioned method, aligns the overlapping state of the sheets, and binds the sheets, and the exposure section a document size detection means for detecting the size of each document conveyed to the document feeder, and a document size detection means for detecting the size of each document conveyed to the document size detection means; The main body of the copying machine and the automatic circulation type are configured so that copies are made only for originals of the same size a number of times corresponding to the type of original size detected during one circulation of all originals. means for controlling a document feeder; and a finisher control for controlling the finisher so that each time copying of one type of document of the same size is completed, the copy paper received during that time is bound and ejected. What is claimed is: 1. A document circulation type copying apparatus comprising: means.