JPH01307768A - Copying device - Google Patents

Abstract

PURPOSE:To efficiency copy different-sized originals to same-sized transfer papers by circulating mixing placed originals, reading the size of each original, and automatically selecting a transfer paper which corresponds to either a middle-sized original or the largest number of originals. CONSTITUTION:When mixingly placed originals D are placed on an original tray 201 and then a print start key is pushed down, a circulating type automatic original feeding device 200 feeds all originals D one by one and selects transfer paper whose size is the same as the largest number of originals D in order in which the originals D are piled. Consequently, the same sized transfer papers are fed only from paper feeding trans 120-122 on which said papers are piled. In this way, when the size of an original and the size of a transfer paper are determined, a proper magnification corresponding to each original D is determined by referring to a magnification data table stored in a ROM. Thus, different-sized originals can be copied efficiently to same-sized thrasfer papers.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a copying apparatus that automatically circulates mixed originals and copies them onto transfer paper of one size.

[Prior art]

When processing mixed originals in a copying machine, the size of the original is generally detected for each copy, and transfer paper of a size corresponding to the detected size is selected and copied each time, or If the size of the transfer paper is determined in advance, the magnification ratio is selected by moving the optical system each time copying is performed.

Further, an example of a copying apparatus equipped with an original circulation feeding device capable of processing mixed originals is disclosed in Japanese Patent Laid-Open No. 61-263534. This conventional copying apparatus transports a plurality of originals placed on a document tray to a document tray in order starting from the lowest one, and transfers the documents on the document tray to the originals placed on the document tray. In an automatic duplex copying machine that is equipped with a document circulation feeding device that ejects a document to the top of the document tray, and also reverses the conveyance direction of a sheet that has already been copied on one side and conveys it again to the copying process section, the document paper is fed from the document tray. a document size detection device for detecting the size; and a document size storage device for circulating the document placed on the document tray before the start of the copying operation and sequentially storing the paper sizes detected by the document size detection device during this cycle. , and means for sequentially reading out the contents of the document size storage means and grouping them into adjacent sheets of the same paper size.

With this configuration, during a double-sided copying operation, the originals can be grouped by size onto adjacent sheets of paper and the copying operation can be performed.

However, in the former conventional example, when processing mixed originals, it is necessary to select transfer paper of the size corresponding to the original according to the original size, and to move the optical system each time, making copying difficult. There is a problem of poor work efficiency. In addition, in the latter conventional example, it is intended to group the same size and obtain double-sided copies of the same size as the grouped size, and copy with high efficiency onto transfer paper of the same size. I can't do that.

〔the purpose〕

This invention was made in view of the above technical background, and its first purpose is to provide a copying device that can efficiently copy originals of different sizes onto transfer paper of the same size. be. The second objective is to provide a copying device that can automatically select the optimal transfer paper size according to the size of the original, in order to efficiently copy originals of different sizes onto the same size of transfer paper. It is in. The third purpose is
In order to efficiently copy originals of different sizes onto the same size transfer paper, when copying originals of different sizes, it is possible to automatically copy at two different magnifications depending on the size of the original. The purpose of this invention is to provide a copying device.

〔composition〕

The above object is achieved by a copying apparatus configured as follows.

That is, a circulating automatic document feeder that can automatically feed mixed originals, a document size detector, a storage device that can store the size of each document, and a converter that changes the size of the document to be transferred to transfer paper. In a copying apparatus equipped with a doubling means, the mixed originals are once circulated by the circulating automatic document feeding means, the size of each original is read by the size detection means, and the sizes of all the originals are stored in the storage means, and the stored originals are The control means is configured to set a copy mode in which a document of a plurality of sizes is divided into two size categories based on the size, and the two are transferred to transfer paper of the same size at different magnifications. It also includes a circulating automatic document feeder that can automatically feed mixed originals, a document size detector, a storage device that can store the size of each document, and a converter that changes the size of the document to be transferred to transfer paper. In a copying apparatus equipped with a doubling means, the mixed originals are once circulated by the circulating automatic document feeding means, the size of each original is read by the size detection means, and the sizes of all the originals are stored in the storage means, and the stored originals are Key input means for automatically selecting either a transfer paper of a size corresponding to an intermediate size original or a transfer paper of a size corresponding to the largest size of an original from among a plurality of original sizes based on the size. to have

With the above configuration, two types of magnification, large and small, are automatically set for originals of multiple original sizes, and one type of transfer paper size is automatically set based on the scanned and memorized original size. It is possible to automatically and efficiently copy mixed originals onto one size of transfer paper at two different magnifications.

Embodiments of the present invention will be described below based on the drawings.

(Overall Configuration) FIG. 1 is a schematic explanatory diagram showing the overall configuration of a copying machine according to an embodiment.

The copying machine M1 according to the embodiment includes a copying machine main body 100 and a recirculating automatic document feeder (Recycling DocumentH) capable of automatically feeding mixed originals.
andier (hereinafter referred to as RDH) 200, and transfer paper 101, 102°1 sent from the copying machine main body 100.
Finisher 30 that stacks or stabilizes 03
It is mainly composed of 0.

The copying machine main body 100 schematically includes a contact glass 10.
optical system 10 that guides the original image on photoreceptor drum 105;
6, and an image forming system 107 that forms an image on the photoreceptor drum 105.
and a paper feeding system 108 that stacks transfer papers 101, 102 and 103 and supplies them to the photosensitive drum 105 side.

The optical system 106 includes an exposure lamp 109 and a first mirror 110.
, second mirror 111, third mirror 112, lens 113
and a fourth mirror 114, and the imaging system 107 includes:
It consists of a photosensitive drum 105, a charging charger 115 that charges the surface of the photosensitive drum 105, a developing unit 116, a transfer charger 117, a separation charger 118, and a fixing unit 119. In addition, the paper feed system 108
includes paper feed trays 120, 121° 122 in which three types of transfer paper 101, 102, and 103 can be set, respectively, and a reversing unit 123 for reversing the transferred paper.
Transfer paper 101,1 introduced through the reversing unit 123
02.103 is stacked on the intermediate tray 175,
Double-sided unit +- that can be transported again to the photoreceptor drum 105 side
124.

With the above configuration, the original image on the contact glass 104 is exposed by the exposure lamp 109, and the original image on the contact glass 104 is exposed to light by the exposure lamp 109.
2. Lens 1 via 3 mirrors 110, 111° 112
13 and is condensed by the lens 113 , and then projected onto the photosensitive drum 105 from the fourth mirror 114 .

The photosensitive drum 105 is charged by a charging charger 115 and is exposed to a light image projected thereon.

The exposed image is developed by the developing unit 116 and visualized. On the other hand, paper feed tray 120°121.122
Transfer paper of one size selected from the above, for example 101, is fed one by one by turning on a paper feed clutch (not shown) and conveyed to the photoreceptor drum 105. After the image on the photosensitive drum 105 is transferred by the transfer charger 117, the separation charger 118
The fixing unit is separated from the photoreceptor drum 105 by the fixing unit! The image transferred at -119 is fixed.

The transfer paper 101 on which the image has been fixed by the fixing unit 119 is
It is selected whether the reversing unit 123 directly discharges the sheet to the finisher 300 or the sheet is discharged to the duplex unit 124 side.

<Operation Unit> FIG. 2 is a front view showing the operation unit of the copying machine 1 according to the embodiment. In the same figure, a main switch 126 is arranged in the cutout at the lower right of the operating section 125, and on the surface of the operating section 125, a sort/stack key 127 for instructing sort/stack from the right side, its display section 128, and a staple key 127 are provided. Staple key 1 to indicate the direction of stabilization and direction of stabilization.
29 and its display section 130, print start key 1
31. Numeric keypad 1 used to enter the number of copies and dimensions
32, LCD display section 133 for providing guidance or indicating the selected mode, paper feed trays 120, 121,
Transcript 101, 102, 103 stacked on 122
or a transfer paper selection key 134 and a transfer paper selection display section 135 for selecting an automatic selection mode described below;
A copy magnification selection key 136 for selecting a copy magnification, a copy magnification display block 137, a magnification display section 138, and a special function key group 139 are provided, respectively.

In the operation section 125, when the main switch 126 is turned on, the lamps of the respective keys are lit, and the LCD display section 1
33 displays guidance or the selected mode. The size of the transfer paper selected by the transfer paper selection key 134 is displayed on the transfer paper display section 135. This transfer paper selection can be selected by the operator himself by operating the transfer paper selection key 134, or by selecting the automatic selection mode, the transfer paper can be selected in accordance with the automatic selection mode set in advance in the copying machine 1, which will be described later. Paper feed tray 120.121.
122 may be automatically selected. In the case of FIG. 2, the B4 size transfer paper 101 is in the first paper feed tray 120, and the B4 size transfer paper 101 is in the second paper feed tray 121.
A4 size transfer paper 102 is set in the 3rd paper feed tray, and A3 size transfer paper 103 is set in the third paper feed tray, and each time the transfer paper selection key 134 is pressed down, the [ ] moves and one of the four lines containing the automatic selection mode is displayed. Here, the copy magnification is displayed in % on the magnification display section 138, and at the same time the combination of standard size original and transfer paper is displayed. In the illustrated example, the reduction key 136a is selected, indicating that the scaling factor is 70.7%. The selected mode is determined by lighting up the small window 136b provided in the key 136a! I can m.

Further, an automatic magnification selection key 140 is provided at the lowest end of the special function key group 139. When this automatic magnification selection key 140 is pressed down,
The magnification ratio is automatically determined according to the document size, transfer paper size, and other preset modes described below.

The staple key 129 is used to staple the copied transfer paper. By pressing down this staple key 129, it is selected whether or not to stapling the transfer paper, and also whether to staple the transfer paper or not. The selection mode is displayed on the display section 130.

Variable power mechanism> Next, the variable power mechanism 180 of the optical system 106 is shown in FIG. FIG. 3 is a plan view of essential parts of the variable power mechanism.

In the figure, the variable magnification mechanism 180 is driven by the lens drive motor 14.
1, and a variable power cam pulley 144 that transmits the rotation of a lens drive motor 141 to a bracket 142 for moving in the X direction and a bracket 143 for moving in the X direction. The lens drive motor 141 performs a preset rotation according to a specified magnification ratio, and the rotation is transmitted to the magnification cam pulley via a timing pulley 145, a timing belt 146, a worm wheel 147, and a worm gear 148. A lens drive wire 149 to which a bracket 142 for moving in the Y direction is separately fixed is wound around this variable power cam pulley 144 . The bracket 142 for moving in the X direction is slidably installed along the guide rod 150 and guided in the Y direction.

On the other hand, a guide rod 151 for guiding the X-direction moving bracket 143 in the X direction is fixed to the Y-direction moving bracket 142.
43 is slidably attached along this guide rod 151.

Further, the bracket 143 for moving in the X direction is set to move while being guided by a grooved cam 153 as a lens guide, so that the lens 152 fixed to the bracket 143 for moving in the According to guide rod 150,151 and grooved cam 15
3 in the Y direction and the X direction, and can be moved to a preset lens position according to a designated magnification ratio.

In addition, the bracket 14 for moving the guide rod 51 in the X direction
A lens home sensor 154 is provided on the end side of 2,
By detecting the detection wire 155 fixed to the bracket 142 for moving in the X direction, the home position of the lens 152, which is defined as the same magnification position, for example, is detected.

(Size Detection of Transfer Paper) FIG. 4(a) is a schematic cross-sectional view showing an example of the size detection means for the transfer paper set in the paper feed trays 120, 121 and 122.

In the figure, the paper feed tray 120 has a guide rod 1.
A paper guide 157 is provided so as to be slidable in the longitudinal direction of the transfer paper 101 along the paper guide 156 (or in a direction perpendicular to the longitudinal direction).
58 is attached. A size detection sensor 15 is mounted on the bottom of the paper feed tray 120 facing the filler 158.
The size of the transfer paper is detected by detecting the position of the filler 158. In the example of FIG. 4, A4. It is set to be able to detect three types of transfer paper sizes: B4° and A3.
When the size is small (A4), the filler 158 is not detected by either of the size detection sensors 159 and 160, when the size is medium (B4), it is detected by only one size detection sensor 159, and when the size is large (A3), the filler 158 is detected by both size detection sensors 159 and 160. It is detected by size detection sensors 159 and 160. This state is shown in FIG. 4(b).

In the embodiment shown in FIG. 4(a), the settings are such that three types of paper sizes can be detected, but the types of paper sizes that can be detected are
It can be freely selected by changing the number of fillers 60 and the arrangement of fillers 158.

Reversing unit> The reversing unit 123, which forms part of the paper feeding system, includes a main reversing roller 161, a front reversing roller 162, a rear reversing roller 163, and further includes a front reversing roller 162 and a rear reversing roller 163, as shown in the main part perspective view of FIG. A reversing solenoid 164 is provided for moving the positions of the reversing roller 162 and the rear reversing roller 163. The reversing solenoid 164 is for driving the reversing clutch 165, and the reversing clutch 165 drives the front reversing roller 162.
and rotation shafts 162a, 163a of the rear reversing roller 163
By swinging the arms 166 and 167 that support the re-inverting rollers 162 and 163, the re-inverting rollers 162 and 163 are driven in the direction toward and away from each other, and in FIG. It is now possible to switch between positions.

Details of this reversing unit 123 are shown in FIG.

In FIG. 6, a front reversing roller 162 and a rear reversing roller 163 are in contact with the outer peripheral surface of the main reversing roller 161, and are rotated as the main reversing roller 161 rotates. In addition, these main reversing rollers 161 and front and rear reversing rollers 162.
A paper ejection guide plate 168 is disposed around 163, and the paper ejection guide plate 168 ejects paper from the duplex unit 124.
a and the paper ejection guide pan 1 that ejects the paper to the finisher 300 side
A branch pawl 170 is provided between 68b and swingably driven about a shaft 171 by a branch solenoid 169 as shown in the side view of the main part in FIG.

The branching pawl 170 is configured to take two positions by the branching solenoid 169: an upright position shown by the solid line in FIG. 6 (dashed line in FIG. 7) and a fallen position shown by the ffi line in FIG. 6 (solid line in FIG. 7). It is intended that the conveyed transfer paper hits the belly of the branch claw 170 in the upright state, and that the transfer paper hits the top 170b of the branch claw 170 in the fallen state.

A fixing jam sensor 172 is provided below a paper discharge guide Fi 168C that conveys the transfer paper from the fixing unit 119 to the reversing unit 123. The fixing jam sensor 172 detects a jam in the fixing unit 119 and is used to determine the operation timing of the reversing solenoid 164 and the branching solenoid 169.

In the reversing unit 123 configured as described above, four types of reversing operations are set as described below.

■ Install the fixing unit from 119 to finisher 3.
00 (Fig. 8) In this case, both the reversing solenoid 164 and the branching solenoid 169 are OFF,
The re-inverting rollers 162 and 163 are in a closed state as shown by solid lines in FIGS. 5 and 6, and the branch claw 170 is in a fallen state. As a result, the transfer paper P is pressed along the surface of the main reversing roller 161 by the re-reversing roller 1G2.163, the traveling direction is regulated by the top 170b of the branching claw 170, and the transfer paper P is conveyed from the paper discharge guide plate 168b to the finisher 300 side. Ru.

■ From the fixing unit 119, turn it over and move it to the finisher 30.
0 (Figures 9 and 10) In this case,
The reversing solenoid 164 turns ON, and the re-inverting roller 162
, 163 are in an open state as shown by chain lines in FIGS. 5 and 6. At this time, branch solenoid 169 is OFF.
The branch claw 170 also remains in the fallen state. In this state, when the transfer paper P is conveyed from the fixing unit 119, the transfer paper P is moved between the main reversing roller 161 and the front reversing roller 1.
62, and the tip rises in the direction of arrow a along the upper reversing sheet discharge guide plate 168d (FIG. 9), and then,
The lower end of the transfer paper P is connected to the main reversing roller 161 and the front reversing roller 1.
62, the lower end of the main reversing roller 16
1, it moves toward the rear reversing roller 163, and is now held between the main reversing roller 161 and the rear reversing roller 163. The lower end is the top 17 of the branch claw 170.
0b and is deflected, and is conveyed to the finisher 300 side along the paper discharge guide plate 168b.

■ Directly from the fixing unit 119 to the duplex unit 12
4 (Fig. 11) In this case, the reversing solenoid 164 is in the OFF state, and the re-inverting rollers 162, 16
3 is in the closed state shown by solid lines in FIGS. 5 and 6. On the other hand, the branch solenoid 169 is turned on, and the branch claw 170 is in an upright state as shown in FIG. As a result, the transfer paper P conveyed from the fixing unit 119
contacts the belly 170a of the branched claw 170 and is deflected downward,
The paper is conveyed to the duplex unit 124 side along the paper discharge guide plate 168a.

■ From the fixing unit 119, turn the duplex unit 12
4 (FIG. 12) In this case, both the reversing solenoid 164 and the branching solenoid 169 are turned ON, so that the re-reversing rollers 162 and 163 are in a closed state, and the branching claw 170 is in an upright state. become. In this state, from the fixing unit 119 to the paper ejection guide plate 16
The transfer paper P conveyed along 8c rises along the upper reversal paper discharge guide plate 168d in the same manner as in the above (3), and the lower end of the transfer paper P passes the main reversal roller 161 and the front reversal roller 162. After that, it is sandwiched between the rear reversing roller 163 and the main reversing roller 161 and reversed. Then, the lower end contacts the belly 170a of the branching claw 170, is guided downward, and is conveyed to the duplex unit 124 side.

Circulating document feeder (RDH) Continuing, the RDH 200 will be explained.

FIG. 13 is a schematic configuration diagram for explaining the RDH 200. r! The DH 200 is provided on the contact glass 104 of the copying machine main body 100 via a hinge (not shown) so that it can be opened and closed. This RDH200 has a document tray 201
After separating the originals set on the bottom one by one through the sorting roller 202 and the separation belt 203, the originals are transferred to the conveyor belt 2.
04 to face the contact glass 104 by the conveyor belt 204, and then further transferred to the relay roller 205,
The document is returned to the original stack of documents stacked on the document tray 201 via a discharge roller 206.

More specifically, when the last page of a document falls due to feeding of the last page, the photo ink printer 208 detects this when the last page of the document falls due to the feed of the last page of the document. and turn on the filler reset motor 209.

This causes the filler reset motor 209 to rotate.
The document final page detection filler 207 returns to the top surface of the document group again through the trajectory indicated by the arrow in FIG.

On the other hand, when feeding the document tray, the separating roller 202 applies vibration to the tip of the document tray, and in parallel with this, the paper feed roller 202
15 rotates, and the separation belt 203 is also driven. In this way, the document is being separated by the separation belt 203.
The rollers 210 transport the sheets one by one from the aligned state.
and is transported to an exposure section facing the contact glass 104.

Further, a document size detector 211 is provided on the conveyance path from the paper feed roller 215 to the conveyance roller 210. The original size detector 211 detects the width of the original and also measures the passage time of the original, thereby setting the original size, transport timing, and the like. Furthermore, the number of originals is measured by counting the number of originals that pass through.

After the document size is detected and the force is counted in this manner, the document is sent onto the contact glass 104. During this time, the original document is transported by the transport belt 204, and is nipped by the relay roller 205 of the transport path 212 on the downstream side in the transport direction of the contact glass 104 and sent upward. Then, it is further deflected toward the document tray 201 by the discharge roller 206, and the original pages are stacked on top of the original group of documents. When conveying this original document, the conveyance system such as the paper feed roller 215 and the ejection roller 206 is driven by the paper feed motor 213. A transport belt drive motor 214 is used.

Finisher> FIG. 14 is a schematic diagram of the finisher 300 to which the transfer paper P is conveyed from the above-mentioned reversing unit 123.

The finisher 300 uses a belt conveyance unit 301 to output the transfer paper P sent from the belt conveyance unit 301 to a first paper output tray 302 without binding it, or to output it to a second paper output tray 303 after binding it. Branching section 3 for selecting whether to output paper to
04, and a stable section 305 that binds the two groups of transfer sheets conveyed to the binding side by the branching section 304.

An inlet sensor 307 is provided on the upstream side of the belt conveyance section 301 of the conveyance path 306, and the end side of the conveyance path 308 on the downstream side in the conveyance direction of the belt conveyance section 301 is located above the first paper discharge tray 302. It's liberated. Further, below the branch part 304, a stable part 305 is provided.
A conveyance path 309 that guides the transfer paper P extends therethrough. Further, at the lower end of the conveyance path 309, a stapling portion 3 of the transfer paper P is provided.
A paper discharge sensor 311 is provided to detect paper transport to 05.

As shown in FIG. 15, the entrance sensors 307 are provided as a pair of a first sensor 307a and a second sensor 307b at two locations in the longitudinal direction of the transfer paper P. The first sensor 307a is located at a midpoint between the longitudinal lengths of A3 size and B4 size, and the second sensor 307b
are provided at positions shorter than the length in the longitudinal direction of A4 size paper, and the size of the transfer paper P is identified by detecting the output as shown in FIG. 16 and the passage time of the transfer paper P.

FIG. 17 is a schematic configuration diagram of the belt conveyance section 301, which includes a belt 312 following the conveyance path 306,
It consists of a standard change roller unit 313. This reference changing unit 313 transfers the transfer paper P to the belt 312.
The left and right reference walls 314a are erected slightly apart from each other on both ends of the
, 314b, a reference changing roller approaching/separating device 316 that causes the reference changing roller 315 to come into contact with and separate from the transfer paper, and a ball body 317 that presses the transfer paper P. This ball body 317 is supported by a guide member so as to be rotatable in any direction. Also, the standard change roller contact/separation device! 316 is fulcrum 3
18, an operating rod 320 that hangs from one end of the swinging rod 319 and supports a reference changing roller 315 at its tip, and a reference changing roller connected to the other end. It consists of a drive solenoid 321 and a coil spring 322 that is connected to the other end and always elastically urges the reference change roller 315 in a direction away from the transfer paper P. When the reference change roller drive solenoid 321 is turned on, the reference change roller 322 315 is in contact with the transfer paper P, and is separated from the transfer paper P by the elastic force of the coil spring 322 when turned off. Further, the reference changing roller 315 is rotated in the direction of arrow C in the figure by a motor (not shown).

A shifting roller unit 333 is provided in the stable portion 305 as shown in the operation explanatory diagrams of FIGS. 18 and 19. This shifting roller unit 333 moves the transfer paper P between the left and right reference walls 334a.

334b direction, a roller approaching/separating device 336 that causes the shifting roller 335 to come into contact with and separate from the transfer paper P, and move the bound transfer paper P to the second paper discharge tray 3.
03, and a rack 323 provided at the top. Left and right reference walls 334a, 3
34b are provided at positions slightly apart from both ends of the stacker 338, and the above-mentioned moving roller unit I-333 is provided on both reference walls 33.
It is set to be able to move back and forth between 4a and 334b. The roller contact/separation device 336, which is configured similarly to the standard changing roller contact/separation device 316, includes a swinging rod 340 that is swingably supported by a fulcrum 339, and a swinging rod 340 that is suspended from one end of the swinging rod 340. An operating rod 341 supporting the shifting roller 335, a shifting roller drive solenoid 342 connected to the other end, and a shifting roller drive solenoid 342 connected to the other end and elastically biasing the shifting roller 335 in a direction that constantly separates it from the transfer paper P. It consists of a coil spring 343 that
The seventh roller 335 comes into contact with the transfer paper P at the N time, and is separated from the transfer paper P by the elastic force of the coil spring 343 at the OF2 time. In addition, the moving roller unit 3
33 is provided with a shifting roller drive motor 324 that drives the shifting roller 335, and its rotation is transmitted to the shifting roller 335 by a belt 325. On the other hand, above the rack 323, a shifting roller unit drive motor 328 is provided, in which a pinion 326 that meshes with the rack 323 is mounted on a rotating shaft 327.

In addition, in FIG. 18, the top left of the rack 323 and the first
In Fig. 9, positioning sensors 3 for left and right positioning of the moving roller unit 333 are located at the upper right of the rack 323, respectively.
29.330 are arranged.

The operation of the finisher 300 roughly configured as described above will be explained next.

The transfer paper P that has undergone each copying process is transferred to the copying machine main body 100.
The paper is ejected from the paper ejection port 173 and delivered to the finisher 300. The transfer paper P received by the finisher 300 is conveyed by a conveyance roller 331 driven by a main motor (not shown) and passes the population sensor 307 . Then, at the same time as the entrance sensors 307a and 307b detect the entrance of the transfer paper P, the size of the transfer paper P is also identified as described above. The transfer paper P whose size has been identified is sent to the bell+-m feeding section 301. The transfer paper P that has reached the belt conveyance unit 301 is sent to the reference changing roller unit 3 at an appropriate timing from the entrance sensor 307, if necessary.
13 to align the transfer paper P with the right side reference in the case of right binding, for example.

That is, as shown in FIG. 17, in the initial state, the reference change roller drive solenoid 321 is in the OFF state, so that the reference change roller 315 is separated from the belt 312 by the elastic force of the coil spring 322. In this state, the transfer paper P is conveyed along the left reference wall 314a.

At this time, if the staple is left-bound, the document is passed through as is.

However, when a stable needs to be bound on the right,
It is necessary to align all of the transfer sheets P conveyed along the left reference wall 314a so as to abut against the right reference wall 314b. At this time, the transferred transfer paper P is not aligned due to the difference in size, but
Based on the detection of the leading edge of the transfer paper P by 07, the reference change roller drive solenoid 321 is turned on and off at a preset timing, and the reference change roller 315 is brought into contact with the transfer paper P by turning on the solenoid 321, and the transfer paper P is conveyed. A driving force is applied to the transfer paper P in the right direction in the figure by the reference changing roller 315 rotating in the direction of arrow C. As a result, the transfer paper P is pressed against the right reference wall 314b by the reference changing roller 315 while being conveyed, and is conveyed from this reference changing roller unit 313 onwards with the right side reference.

The transfer paper P that has passed through the belt conveyance section 301 in this way
is either the left or right reference wall 314a.

314b and reaches the branch 304. In this branching section 304, when there is no need to compact the transfer paper P, the gate 310 remains closed and the paper is discharged to the first paper discharge tray 302 and stacked.

On the other hand, when it is necessary to bind one part at a time, the gate 310 is opened, and the transfer paper P conveyed from the belt Ill conveyance unit 301 passes through the gate 310 and is conveyed through the conveyance path 309 while being reversed. Although the structure and control of the gate 310 will not be explained in detail, for example, it can be set in advance to staple mode (binding mode) and non-staple mode (
The gate 310 may be opened and closed using a solenoid or the like depending on the mode.

The transfer paper P that passes through the gate 310 and is conveyed while being reversed passes through the paper discharge sensor 311 and then passes through the stable section 3.
05 stacker 338. In this stacker 338, in preparation for the next stabilizing operation, in order to align the left or right edge of the transfer paper with higher accuracy, the shifting roller unit 333 is activated at a timing based on the ejection or passage of the transfer paper P from the paper ejection sensor 311. The stacked transfer paper P is moved to either the left or right reference wall 334a.

334b. At this time, the leading edge of the transfer paper P is abutted against a portion 345 of the stapler 344 of the stapling unit 305 and aligned.

In the case of left binding, the transfer paper P is fed along the left reference wall 314a with the left reference as described above, but the transfer paper P is fed along the left reference wall 314a as described above.
The left end of the transfer paper P is slightly shifted due to skew or the like during the transfer paper 09 and the stacker 338 . If this shift is not corrected and compacted, the bundle of transfer sheets P after binding will be uneven, so the alignment operation is performed by the shifting roller unit 333 during the stacking operation in the stacker. In the alignment operation, as shown in FIG. 18, in the left-handed alignment operation, the shifting roller unit drive motor 328 rotates clockwise, and the shifting roller unit 333 is moved to the left by the pinion 326 and the rack 323. Then, the left positioning sensor 329 stops the moving roller unit 333 at the detected position. At this stop position, the roller 335 is set to at least the minimum size transfer paper P with respect to the left reference.
is set to be to the left of the contact position.

At this time, the shifting roller drive solenoid 342 is OFF, and the shifting roller 335 is separated from the stacker 338 by the elastic force of the coil spring 343. When the transfer paper P is introduced into the stacker 338 in this state, the sensor 31
Based on the leading edge detection signal of the transfer paper P according to No. 1, the shifting roller drive solenoid 342 is activated at the timing when the group of transfer paper P to be bound is completely received in the stacker 338.
is turned ON, and the shifting roller 335 comes into contact with the transfer paper P.

At the same time, the first roller drive motor 324
8. The transfer paper P is rotated in the clockwise direction (direction of arrow d) in the figure, and as a result, the transfer paper P is brought into contact with the left reference wall 334a,
The left edge is aligned.

On the other hand, in the case of cloth weaving, the shifting roller unit drive motor 328 first rotates counterclockwise in FIG. 19 to move the shifting roller unit 333 to the right. This movement is performed by the positioning sensor 330 on the right side of the roller unit 333.
The motor 328 continues until it is detected, at which point the motor 328 stops, and the shifting roller unit 333 stops at the position shown in FIG. This stop position is set to be to the right of the position where the shifting roller 335 contacts at least the minimum size transfer paper P with respect to the right reference. The subsequent operation of the shifting roller unit 333 is the same as in the case of the left reference, but the shifting roller drive motor 324 rotates in the opposite direction to that in the above case, and therefore the shifting roller 335 also rotates in the 19th
It will rotate counterclockwise (direction of arrow e) in the figure.

After the bundle of transfer paper P aligned with the left reference or right reference as described above is stapled at a predetermined position by the stapler 344, a clutch (not shown) is turned on, and the belt device 337 connected to the clutch is rotated. , the paper is discharged onto the second paper discharge tray 303 by a protrusion 347 erected on the belt 346. Such an operation makes it possible to sip a plurality of transfer sheets P of different sizes using the left reference or the right reference.

Control System for Multiple Machines> FIG. 20 is a block diagram showing a control system for the copying machine 1 according to the embodiment.

The copying machine 1 includes a main body control section 400 that controls the copying machine main body 100 and an RDH! that controls the RDH 200. An I+ control section 500 and a finisher control section 600 that controls the finisher 300 are provided, and the main body control section 40
The main control unit 401 of No. 0, the RDH control unit 500, and the finisher control unit 600 are connected via ink face lines 501 and 601, respectively. The main body control unit 400 connected via path lines 405, 406, 407, etc. further includes a main control unit 401, an operation unit 402,
It includes a paper feed control section 403, a lens control section 404, a power supply section 409 that supplies DC voltage to the control system of the copying machine 1, and the like.

A more detailed control block diagram of this main body control section 400 is shown in FIG. are stored in the first and second ROMs 411 and 412, and the operation unit 12.
5. First to sixth units that perform input/output control with unit control units such as the paper feed control unit 403 and lens control unit 404, the RDH control unit 500, and the finisher control unit 600;
10413,414,415,416゜417.418
and pass lines 407, 4 between the lens control unit 404 and the second Ilo, and between the paper feed control unit 403 and the third Ilo.
Driver buffer array 4 provided respectively in 06
19.420 and the respective drivers 422.4 of the fixing jam sensor 72 and the double-sided empty sensor 421 that detects whether or not there is transfer paper P in the double-sided unit 124.
23, a reversing clutch 165, a reversing solenoid 164,
Buffers 424, 425, and 426 for driving each of the 16 branch solenoids, a CPU 427 for controlling each of these elements, and a reference oscillator 428 for the control clock.
, a RAM 441 that temporarily stores control data, and a pass line 429 that connects these elements. The RAM 441 also functions as a storage means for storing document size, ie, original size data, as will be described later. Further, between the CPU 427 and the first timer 409, 1m5ec interrupt control, 1m5ec interrupt control, 1m5ec interrupt control, 1m5ec interrupt control,
0ms e (The IKHz timer output signal line 430 used for interrupt control and the 100Hz timer output signal line 431 are connected.

The operation unit 125 includes a T10432 that performs input/output control with the main control unit 401, an operation key part 433, and a display unit 434.
It is composed of a main switch 126 and the like.

This display section 434 is connected to the display section 12 that displays each of the functions described above.
8, 130, 135°, 138, etc. are shown comprehensively.

The paper feed control unit 403 includes three identical control circuits 436 in parallel, and each of the control circuits 436 includes an l10437, a transfer line, which is connected to the pass line 406, and performs input/output control with the main control unit 401. Transfer paper size detection sensors 159 and 160 for detecting paper size and a transfer paper feed clutch 174 are provided, respectively.

The lens control unit 404 includes an l10438 that performs input/output control with the main control unit 401, a lens home switch 439 that serves as a reference position when driving the lens, and a lens drive motor 1.
41, and a drive driver 440 for driving this lens drive motor 141.

<RDH Control System> FIG. 22 is a control block diagram of the RDH 200. In the figure, the RDH 200 includes an RDH main control section 250,
This main control section 250 includes a timer control section 251, an RDH2
ROM 252 in which the control program 00 is stored;
A RAM 253 that temporarily stores control data, a CPU 254 that controls each of these blocks, and an l1 that controls input and output.
0255, a one-chip microcomputer 258 consisting of a pass line 256 connecting these, a reference oscillator 257 for a control clock, etc., three output drivers 259, 260, 261, and first to third output drivers. It is composed of three input buffers 262, 263, and 264, and is connected to the main control section 401 of the copying machine main body 100 via a pass line 501 and a pass line 501.

The first output driver 259 is a driver that drives the filler reset motor 209, and the second output driver 2
60 is a driver that drives the paper feed motor 213, the third output driver 261 is a driver that drives the conveyor belt drive motor 214, and the conveyor belt drive motor 214 is
A rotation detector 265 that rotates in synchronization with this motor 214
Based on the speed signal of the motor 214 detected by the rotation controller 266, precise control can be performed. Also, the first and second input buffers 262.2
Reference numeral 63 denotes a buffer for inputting the output of the document size sensors 267 and 268 provided in the document size detector 211 to the microcomputer 258. These sensors 267 and 268 make it possible to detect three types of document sizes. ing. That is, when the document size is large (for example, A3), the document size sensor 267. 268 (7) Both forces are "H", and only one document size sensor 267 is "H" when the size is small (A4) and medium size (B4).
A small size (A4) and an intermediate size (B4) are distinguished based on the time difference when the document size sensor 267 becomes "H". Further, the third large-power buffer 264 outputs the output of the photointerrupter 208 that detects the document amount P and the last page of the document via the page detection filler 207 to the microcomputer 264.
This is a buffer for inputting to the 58 side.

<Finisher Control System> Next, a control block diagram of the finisher 300 is shown in FIG. 23.

In the figure, a finisher main control section 350 includes a timer control section 351 having multiple timer functions, and a ROM 352 in which a control program for the finisher 300 is stored.
, R that temporarily stores control data for the finisher 300
AM353, 1st to 3rd I1 in charge of human output control
0354. 355°356, a CPU 357 that controls each of these blocks, a pass line 358 that connects each of these blocks, and a reference oscillator 3 for the control clock.
59, first to ninth output drivers 361 to 369, and first to fifth input buffers 380 to 384. and the third eleven
0356 and the path line 601.

The first to fourth output drivers 361 to 364 each have an ejection clutch 37 that is used when ejecting the copied and bound copy set to the second paper ejection tray 303.
Driver for driving 0, staple solenoid 3
71, a driver to drive the shifting roller drive solenoid 342, and a driver to drive the standard change roller drive solenoid 321. controls the driver 364 so that the 08 time period varies depending on the size of the transfer paper P to accurately change the conveyance standard.

The fifth and sixth output drivers 365 and 366 are drivers for driving the collapsing roller unit drive motor 328, and the motor 328 is the drive element 372a, 372b, 37
2c, 372d. That is, the fifth output driver 365 is turned on and the drive elements 372a, 3
When 72d is turned ON, the above-mentioned moving roller unit Me-E
-v 32 B rotates to the right in FIG. 19 (counterclockwise in FIG. 19) to move the shifting roller unit 333 to the right in FIG. 19, and sets it to the right binding reference.

On the other hand, when the sixth output driver 366 is turned on, the drive elements 372 b and 372 c are turned on,
This causes the roller unit drive motor 328 to move to the second position.
3 counterclockwise (to the right in FIG. 19), move the shifting roller unit 333 to the left in FIG. 19, and set it to the left binding reference.

The seventh and eighth output drivers 367 and 368 are drivers for driving the shifting roller drive motor 324 in the shifting roller unit 333, and the seventh output driver 367 is
When set to N, the drive elements 373a and 373d are turned on, and the reversible motor 324 moves clockwise in FIG.
Rotate the transfer paper P in the direction of arrow d in Figure 8) and place it on the left reference wall 33.
4a side and turns on the eighth output driver, drive elements 373b and 373c turn on, and the reversible motor 324 rotates counterclockwise in Fig. 23 (direction of arrow e in Fig. 19) to rotate the transfer paper. P is moved toward the right reference wall 334b.

The ninth output driver 369 is a driver for driving the main drive synchronous motor 374 of the finisher 300, and drive control is performed via a solid steady relay (SSR) 375 that controls ON/OFF of the motor 374.

The first large force buffer 380 is connected to the second large force sensor 30.
A second input buffer 381 is a buffer for inputting the output of 7b to the microcomputer 360 side.
This is a buffer for inputting the output of the input sensor 307a, and the size of the transfer paper P can be detected based on the detection state as explained in FIGS. 15 and 16 above. Further, this detection result, particularly the detection result of the entrance sensor 307a, becomes a reference for subsequent control within the finisher.

The third input buffer 382 is connected to the shifting roller unit 3.
A buffer for inputting the output state of the paper discharge sensor 311 for setting the drive timing of the shifting roller drive solenoid 342 for moving the shifting rollers 335 of 33 toward and away from the transfer paper P, and fourth and fifth input buffers. 383.38
4 is a positioning sensor 329 of the shifting roller unit 333
, 330, depending on the detection states of these positioning sensors 329, 330,
Controlling the drive of the shifting roller unit drive motor 328,
The shifting roller unit 333 is positioned.

(Control of the copying machine body) Next, control of the control system configured as described above.
The operation will be explained in detail.

FIG. 24 is a flowchart showing the main control flow of the copying machine main body 100.

First, turn on the main switch 126 of the copying machine main body 100.
When the main control unit 401 receives the control M from the power supply unit 408,
, flow is supplied and the control program shown in FIG. 22 is started. In this program, first, the copying system l,
“Initial settings” to set the initial data mode required for control
I)" subroutine is executed as step S, and then as step St, the magnification is set to an initial magnification (for example, 1).
00%) is executed. After executing this initial setting, step S
.

Then, the subroutine "operation key input check" is executed to check the key input state of the operation key part 433 on the operation unit 125 and determine the input data, mode, etc. When the check is completed in step S, a staple signal, which is a finisher-related signal, is output (step S4), and copy number data is output to the finisher 300 according to the operation key input check in step S (step S).
Then, after outputting a signal to the finisher 300 indicating whether it is binding or left binding (step S), step S,
Transfer paper size check subroutine. In this subroutine in step S, the output states of the size detection sensors 159, 160 installed in the paper feed trays 120, 121, 122 are determined as described above.

When the size of the transfer paper in the paper feed trays 120, 121, 122 is determined by these size detection sensors 159, 160, the conditions of the copying machine main body 100 are determined in the next step Sll, and it is determined whether the copying machine is ready for copying. Please judge. If it is determined in step S8 that the state is not ready for copying, then in step 59-1 the copying machine main body 100
After executing the subroutine "copy standby process" for controlling the copy standby state of the process, the process returns immediately before step S.

When it is determined in step S that the state is ready for copying, it is determined in the next step S, -3 whether or not automatic magnification selection mode (hereinafter also referred to as AMS mode) is set.

If it is determined in step 59-1 that the AMS mode is not set, step S. It is determined whether the automatic paper selection mode (hereinafter also referred to as APS mode) is set. AP in this step 5llll
If it is determined that the S mode is set, it is determined in step S whether copying has started, that is, whether the print start key 131 has been turned on, and if the print start key 131 has not been turned on. If copying has not started, the process returns to ■ (immediately before step S), and if it is determined that copying has started by turning ON, step SI! The APS copy mode is executed by executing the "copy APS process" subroutine of
Judgment is made in step 3, and if it is not finished, step Sl! is further executed, and when the process is completed, a subroutine of ``1 copy end process'' is executed in step Se4, and then the process returns to step (2).

Further, if it is determined in step 5lll that the APS mode is not set, it is determined in step SIS whether the print start key 131 is turned on and copying has started, and if copying has not started, Returning to step (3), if it is turned ON and copying has started, the next step S0 executes the "copy standard process" subroutine to perform copying in the normal copy mode. And step S
When it is determined that the copy has been completed in l'l, the subroutine "copy end block I" is executed in the next step 5llll.
Execute "Cocess" and return to ■.

On the other hand, if it is determined in step S19 that the AMS mode is set, the print start key 131 is turned on in step S19, and it is determined whether or not there is a copy start signal, and it is determined whether copying has not started. Sometimes, the process returns to ■, and when copying has started, the subroutine of "initial setting of control mode" in step St6 is executed to initialize the control data and mode necessary for AMS copying, and then in step St+. R
DH200 free run cycle mode signal (RMOD
After outputting E) and executing the "copy free run process" subroutine in step Bit, 1 of step S23
Shifts to the "original size list" subroutine.

Step S2□ is a subroutine for executing standby mode control of the copying machine main body 100 while the RD I-1200 is executing the free run cycle mode. is RDH2
Based on the original size signal output from 00, the size of each original is sequentially assigned to the original set from an arbitrary address in the RAM 441.

This is a subroutine for creating a stored original list as shown in FIG. 28, which will be described later.

When the original list is created in step srs, the photo interrupter 20 of the RDH 200 is
8 to the third input buffer 26 of the RDH main control unit 250
It is determined whether or not there is an output of the document end signal inputted through 4. If there is no output, the process returns to ■ (immediately before step sit), and if there is an output, the process is performed from the RD H200 in step S□. BUSY (Determine whether No. 8 is output.

If the BUST signal is output, that is, RDH
When the original is being replaced at step 200, it returns to 0, and if it is not being output, that is, when the RDH 200 is ready to replace the original, the free run cycle signal (RMODE) is set to 0FFL at the next step 32&, and the finisher 3
Output start signal to 00 (step St?) L,,
Step S! At 11, a subroutine of "transfer paper selection (1)" is executed to determine the transfer paper according to the setting mode described later.

Next, in step SO, a subroutine of "variable magnification ratio" to be described later is executed to determine two variable magnification ratios corresponding to the original document size, and further, in step S, described below. Execute the subroutine @AMS process select” and select the L
Either the M mode or the BT mode, which has a shorter copy processing time, is selected according to preset conditions. If the LM mode is selected in step S11, the subroutine of "LM mode process 1" is executed in step 53t, and the process returns to (2).

Step S! When the BT mode is selected in l, the subroutine "priority magnification selection" to be described later is first executed in step S0, and then the subroutine "in step St9" is executed.
The first magnification to be executed out of the two magnifications determined in "Magnification Selection" is determined according to preset conditions.Next, in step 5ff4, the subroutine "Original Initial Set" described in 1& is executed, and the The RDH 200 is operated to set the original document matching the magnification determined in step 53ff on the contact glass 104, and after executing the "BT mode process" subroutine to be described later in step 5ffa, the process returns to Preparing for copying Next, the main subroutines will be explained.

Transfer Paper Selection (I)> In this invention, the most important operations are selection of the transfer paper size and magnification ratio according to the size of the original paper.

Of these, two modes are set for selecting the transfer paper size: a maximum size selection mode based on the maximum original size and an intermediate size selection mode based on an intermediate original size.

First, the maximum size selection mode will be explained.

FIG. 25 is a flowchart 1 showing the subroutine procedure of the maximum size selection mode of "transfer paper selection" in step Szs, and in this step SZa, step 3
Check whether automatic paper selection (APS) is set in step 211-1, and if it is not set, execute the "manual transfer paper determination" subroutine in step 5ZO-□, and select manual transfer paper selection using the transfer paper selection key 134. Select either transfer paper 101, 102, or 10-3 in the selected tray, and if APS is set, perform the sub-martin of ``Most Size Select'' in step 5ZB-
Execute with 3. Selecting the most common size means selecting the most common size of the document from the original list shown in FIG. Select transfer paper of the same size.If there are two types of document sizes, for example, the largest size will be selected, and if there are three types, the middle size will be selected. .

The original list is created by storing the sizes of the originals read by the original size detector 211 of the RDH'200 described above in the order in which the originals are stacked.

On the other hand, in the intermediate size selection mode, as shown in the flowchart of Fig. 26, it is checked in step 5za-a whether or not APS is set. ” is executed in step 5to-s, and if APS is set, step S t
In step a-, refer to the original list created in the "original size list" and check whether the document size is 3 fl or more. If there are no more than 3 types,
For example, if there are two types, step 5ffi, I-?
Execute the ``maximum size select'' subroutine to select the largest size among them and return to the main flow.
If it is 3flIl'f or more, it is checked in the next step Sta-a whether the type of document size is an odd number or an even number.

If it is determined in this step 5ell that the type of document size is an even number, in step S tm-9, "document size f" is determined.
Select the "Compensation Division ÷ Second Size Select" subroutine and return to the main flow.Specifically, if the document size type is changed from the original size data, for example, A4.
If there are 4 types of B4, A5, and B5, 4+2-2
The second largest size, that is, B4 size transfer paper is selected.

Ri, Tep S. -, if the type of document size is determined to be an odd number, please proceed to step S. -,. The "intermediate size selection" subroutine is executed, and the intermediate size is selected from three or more document sizes by referring to the original list, and after selection, the process returns to the main flow. p. Specifically, for example, A3. B4
, A4, the intermediate A4 size transfer paper is automatically selected. I
F. be done.

In addition, this step S! o1 transfer paper selection (I)
”, when automatic selection is instructed by the transfer paper selection key 134, the “maximum size selection mode”
Since the mode is set in advance in the CPU 427 of the main control unit 401, whether to apply the "intermediate size selection mode" or "intermediate size selection mode" is selected according to the set mode. In this case, it is also possible to configure the copying machine so that either the maximum size selection mode or the intermediate size selection mode can be selected using a changeover switch or the like provided in the main body 100 of the copying machine.

Variable magnification selection> When the transfer paper size is selected in step St, step S2. ``Magnification ratio selection'' is executed, and a magnification ratio according to the transfer paper size is selected. FIG. 27 is a flowchart showing the procedure of the subroutine of "magnification ratio selection".

In this step St9, first, the "magnification data check" subroutine is executed in step S! ! -1. This subroutine uses the transfer paper size selected in step 5i11 and step St.

The original size data created by the main control unit 40
The appropriate magnification for each document is determined from a magnification data table as shown in FIG.

Next, in step S29-2, "maximum magnification (MAX.

R), minimum magnification (MIN, R) determination" subroutine is executed, and the maximum magnification and minimum magnification are selected from among the magnifications determined by step 5it-+. The maximum magnification and minimum magnification are selected. Then, in the next step S29-3, the "magnification list" subroutine is executed, and the minimum magnification is selected for documents larger than the transfer paper size selected in step 28, and the minimum magnification is set for documents smaller than or equal to the transfer paper size. determines the magnification for each manuscript under the condition of maximum magnification, and the 30th
A magnification list, which is magnification data for each document, as shown in the figure is created.

<AMS Process Selection> When the magnification list is created in step S29, "AMS process selection" in step S3 is executed, and it is determined whether the copy process is executed in LM mode or BT mode.

LM mode is AM mode for a stack of documents of different sizes.
When S mode is selected, step S! In this mode, one of the two magnifications determined in step 9 is selected and the copy process is executed. In addition, the I3T mode is a combination of the RDH 200's original feeding operation from the original tray 201, the temporary stacking operation of the duplex unit 124 to the intermediate tray 175, and the paper refeeding operation from the intermediate tray 175. AM with short processing time
This is the mode in which the S process is executed.

Below, this step S. The contents of the subroutine of
This will be explained with reference to FIG.

When the AMS process selection step is entered, the control variable N is first set to the numerical value "2" in step S3°, and the magnification data and magnification data for the first document on the magnification list in FIG. 30 are set in step S3°-2. It is checked whether (1) and the magnification data for the Nth original document are equal to the magnification data (N). If it is determined that the two are equal in step S:1O-Z, the variable N is changed in step S3゜-1.
, and in step S3°-4, N > L.
AST, that is, it is checked whether the variable N is larger than the order of the final document on the magnification list. If the variable N is small, the process returns to immediately before step 53o-t, and if it is large, the LM mode flag (F: LMMOD) is set to determine execution of the LM mode in the next step S3-5. Return to main flow.

Also, step S. If the magnification data (1) and magnification data (N) are not defeated in -2, step S4
Add "l" to the variable N at °-4, and proceed to the next step S.
. -7 to check N>LAST. This step S
If it is determined that N>LAST holds true at 2.-1, step S3°-% is performed in the same manner as step 33G-%.
Set the L↑4 mode flag with ○ and return to the main flow. If step S. -1 and N;/J<L
If it is determined that AST is below, step S. -1
Step S, whether the magnification data (1) and the magnification data (N) are equal. Judgment is made in the same way as in 4, etc.
<If not, step S. -4, and if they are equal, step S; At −3°, the BT mode flag CF (BTMOD), which determines the execution of the BT mode, is set and the process returns to the main flow.

Therefore, this step S. When this subroutine is executed, if all the magnification data suitable for each document are equal, or if the two magnifications selected in the "variable magnification selection" in step St9 are displayed on the magnification list as shown in FIG. If at least one block exists as two consecutive blocks, the LM mode flag is set in step S. -! l+5ee-a, otherwise the BT mode flag is set at step SZ. ,.

is set.

<LM mode process> When it is determined that the mode is 1 and M mode in steps S and I, step S3! The subroutine of "LM mode process 1" is executed. In this subroutine, as shown in the flowchart of FIG. OR-C0NT)
Clear both by setting it to 1. Next, an interrupt counter used as a control counter is initialized in the "interrupt counter initialization" subroutine of step 50-3, and a copy process in the LM mode is executed in step S.

Next, in step S3!4, a document feed signal is output to the RDH 200, and in step s'xt-b, the RDH 200
Checks whether the BUSY signal is being outputted from the BUSY signal, and if it is being outputted, returns to just before step S3 and asks for the judgment in step S32-b again; if it is not being outputted, the feed signal is output in step sst-'r. In step S3z-s, the final page detection of the document final page detection filler 107 of the RDH 200 causes the photo ink printer 208 to output an OFF signal.
Check whether the document end signal has been output. This step S! When it is determined in 2-6 that the document end signal has not been output, “Magnification change decision (1)” is executed.
The subroutine is executed as step Sxt-q. In this subroutine, it is checked whether the magnification data for the original in the original order indicated by the original counter in the magnification data list in FIG. 30 matches the currently set magnification. If they do not match, the magnification change flag F-CHRE) is set.

Next, in step 33, the magnification change flag (F
-CHRE) is set, and if it is set, the subroutine "magnification change (1)" to move the lens to the magnification on the magnification data list in step 50-++ is executed to change the magnification. Then, in the next step 5321□, add "1" to the original counter, and then proceed to step S. Returns just before -8. Also, step SI
! If the magnification change flag is not set at −1°, the process moves to step 53t-I□ without performing the magnification change in step 5sz-++, and returns immediately before step 5st-s.

On the other hand, if it is determined that the document end signal has been output in step S3, 1'' is added to the copy number counter (Co・C0NT), and the contents of the copy number counter are set in step S3. In step S-14, it is checked whether the number of copies matches the data on the number of copies, that is, whether the copying has been completed.If it is determined in step s3g-z that the copying has not been completed, the process proceeds to step 33□-3. Returning to the previous step, when it is determined that the copying has been completed, the subroutine "copy process end" of the next step 53z-+s is executed, and after the final processing of the copying process is performed, the main flow is returned.

Priority variable magnification selection> If it is determined in step S31 that the mode is BT mode, a subroutine of "priority variable magnification selection" is executed in step S33, but in this subroutine, processing as shown in the flowchart of FIG. 33 is performed. It will be done. That is, first, in step S: l3-1, the magnification difference between the current set magnification and the maximum magnification MAX, R is calculated, and the result is set as A, and then in step S1, 4, the current set magnification and the aforementioned maximum magnification are calculated. The magnification difference between the minimum magnification MIN and R is calculated, and the result is designated as B.

Then, in step S33-2, the magnitude of the A and B values is compared, and if A is less than or equal to B, the maximum magnification is set to MAX and H as the priority magnification in step S333-4, and if A is smaller than B, In step Sff:l-5, the maximum magnification MAX, R is set as the priority magnification change rate.

As a result, a magnification closer to the current set magnification is selected as the priority magnification.

Original Initial Set After the priority magnification is selected as described above, the subroutine ``1 Original Initial Set'' as shown in the flowchart of FIG. 34 is executed.

In this subroutine, first, in step 5ff4-1, the control variable N is set to a numerical value "1". Next, in step S14, it is determined whether the magnification data (N) for the Nth original document matches the priority magnification ratio determined in step S33.
-2 is checked, and if they do not match, it is set to N+1 and again it is determined whether the magnification data (N+1) for the (N+1)th document and the priority magnification change match. Execute this until the magnification data and the preferred magnification ratio match, and if they match, proceed to the next step S.
Move to ff4-3 and set the value of N at that time to RDH20
Control register 5HIF that determines the number of times the feed is executed from 0
Set to T. Next, feed the nD H200 (
Output No. 8 (S3=-4) Step S, 44 “
Execute the subroutine "Original Initial Process".This step S5a-s is performed on the copying machine main body 100 during the original initial setting of RD) T200.
This is a subroutine that controls the standby state of .

Then step 5za-h TeRD H200 to BUS
Check whether No. Y43 has been output, that is, whether one manuscript replacement operation has been completed, and press BUSY.
When the signal is being output, the document replacement operation has not finished, so the process returns to immediately before steps S5a-s, executes steps Sza-srS54-b, and connects the BUS.
When the Y signal is not output, the document exchange operation has finished, so stop the feed signal to the RDH200 (
Sia-1) Subtract "1" from the control register SHIFT that determines the number of times of execution of sending from the RDH 200 (S34-a), and step S34-'
In l, check whether the result of step S14-I+ is "01", and if it is not '01,
Returning immediately before step 5s4-a, step 824
-4 and subsequent steps are repeated until step Sff4-9 becomes "0".

Therefore, by executing this "original initial set" subroutine, an original document matching the priority magnification ratio is set on the contact glass 104.

<BT Mode Process> After the original initial set is executed in step ssm, a "BT mode process" subroutine is executed in step S3s. The procedure performed in this subroutine is shown in FIG.

First, when entering the "BT mode process" subroutine, the copy number counter (Co, C0NT) is cleared to zero (5ss-+), and the "intermediate stack mode set" subroutine of step 53s-t is executed. In this subroutine, the branch solenoid 169 is turned ON in order to temporarily stack the copied transfer paper P on the intermediate tray 175.
L. Prepare to receive the transfer paper P into the intermediate tray 175.0 Next, in step 535-3, the "interrupt counter initialization" subroutine is executed to initialize the interrupt counter used as a control counter. When this initial setting is completed, the ``BTBT process'' subroutine is executed in step 32%-4, and a document feed signal is output to the RDH 200 (S3s-s). Next,
In step s'5s-b, the presence or absence of the BUSY signal output from the RDH 200 is checked, and while the BUSY signal is being output, the process returns to immediately before step 5ts-i, and when the output is no longer present, the next step SIs-? At step S35-1, the feed signal is set to 0FFL, and at step S35-1, it is checked whether the document end signal is output.

If the document end signal has not been output in step Sff5-8, the process advances to step S53 and executes the subroutine "magnification change determination (I[)". This subroutine determines the magnification data corresponding to the original set on the contact glass 104 from the magnification data list shown in FIG. 30, and determines whether the magnification in the list matches the currently set magnification. If they do not match, the magnification change flag (F-CH
RE). Then, in step 33S-+o, it is checked whether the magnification change flag (F, CHRE) is set, and if it is not set, step S
Return just before sg-y and “initialize interrupt counter”
Repeat the steps below in the subroutine again, and if the cell is set to 1, output the feed signal to the RDH200.53
s-z), it is checked in step 335-1□ whether or not the BUSY signal is output from the RDH 200.

When it is determined in this step 5ffS-12 that the BUSY signal is not output, the feed signal is turned OFF in step S'1S-13 and the process returns to just before step s'xs-q, so that the BUSY signal is still output. If it is determined that the RDH 200 is running, the subroutine "BT/idle process" for executing the standby copying process of the copying machine in the BT mode during the feed operation is executed in step 5.
After executing on ss-ra, BU of step 53S-It
The process returns immediately before the SY signal determination step.

On the other hand, if it is determined in step szs-s that the document end signal has been output, "magnification change (II)" is performed.
The subroutine is executed in step 33S-15.

This subroutine changes the magnification ratio to “
This subroutine is for changing to another magnification different from the current set magnification among the two magnifications selected by "Magnification Variation Selection". After executing this subroutine, the process moves to the next step 33S-16. This step S3 !1-16
is the subroutine “intermediate standstill mode reset”,
This is to release the state in which the copied transfer plate P set in step S354 is received in the intermediate tray 175. When this acceptance state is released, the "magnification change determination (If)" subroutine is executed in step 53S-17, and if it is necessary to change the magnification, the magnification change flag (F, CHR) is executed.
E) is set, and in the next step 33S-1fi it is checked whether the magnification change flag (F, CHRE) is set.

Here, if the magnification change flag is not set, execute the "interrupt counter initialization subroutine" similar to step 5ffs-s above (5zs-rq).
, and further executes the "BT process (II)" subroutine in steps s and St. and the above step S2
．． The transfer paper is fed from the paper tray loaded with the transfer paper selected by the subroutine "Transfer Paper Selection (1)", the normal copying process is executed, and the next step S
Move to xs-z+. In step 33S-1+, a feed signal is output to the RDH 200, and step S
35-Z□ checks the output of the BUSY signal of the RDH 200, and repeats this until the BUSY signal is output. Then, when the BUSY signal is no longer output, the process moves to the next step Sff5-23, and the feed signal is turned off.
F.

Next, in step 33544, it is checked whether the document end signal has been output, and if the document end signal has not been output, the process returns immediately before step 5ss-It and the subroutine of "magnification change determination (II)" is repeated again. If the output is repeated, the copy counter (C
o, C0NT) and next step s 3s-
Move to zh. In this step 5xs-xi, the contents of the copy counter (Co, C0NT) are 1 in step S4.
It is checked whether the number of copies matches the copy number data set in "Operation key input check", that is, whether copying has been completed. If it is determined that copying has not been completed based on this result, step S5S-2 Return just before ``1 intermediate stack mode set'' and repeat the procedure after ``Set 1 intermediate stack mode'', and when it is determined that copying is completed,
Step S3! The process advances to v, executes a subroutine "copy end process" for executing its processing of the copy process, and then returns to the main flow.

On the other hand, in steps 53s-ts, the magnification change flag (F
, CHRE) is set, output the feed signal to the RDH200.
s), execute the "interrupt counter initialization" subroutine as step 33S-zl, and
, 1s-x. ``BT process (I[[)'' subroutine is executed. This step S35. .

The subroutine is the exposure out of the copy process.

The development and 'transfer processes are not executed, and the intermediate tray 175
One sheet of copied transfer paper is fed from the machine and discharged. In this way, after feeding and ejecting the copied transfer paper in step 33!1-1, the next step 5
At ss-3+, the feed signal output to RDH200 is set to 0FFL, and at step S xs-s*, check whether the document end signal is output. If it is determined that the document end signal has not been output, the program returns to immediately before step 53s-+'l and repeats the subroutine after "Determine magnification change (■)", and if it is determined that the document end signal has been output, , copy number counter (Go, C0NT)
Add '1'' to the above step 33%-!&l
S Follow the steps in 5s-zt.

This r3T mode is a mode in which the following procedure is performed. That is, in the AMS mode for a mixed size document bundle, "(1st magnification selection") in step S33 is selected.
A copying process is executed for a document of a document size that matches the priority magnification ratio determined in , and the copied transfer paper P is temporarily stacked on the intermediate tray 175 . During this time, the RDH 200 executes the feed operation by skipping the originals that do not match the priority magnification ratio. After copying all the compatible size originals, execute the copying process of the original of the original size compatible with the changed magnification to the 0th order to change the magnification,
Skip originals that do not match the set magnification and print RDH200.
At the same time, the intermediate tray 1 is
By feeding the copied transfer sheet P from 75, page alignment for copying is performed. By repeating this operation, efficient execution of the AMS process becomes possible.

<Control of RDH) FIG. 36 is a flowchart showing a control flow of main control of the RDH 200.

In the figure, a main switch 12 of a copying machine main body 100 is shown.
6 is turned on, +5v control power is supplied from the DC type B4O8 to the main control unit 250 of the RDH 200, and the control program starts.

First, in step S4, the initial data and mode necessary for controlling the RDH 200 are executed in an "initial setting" subroutine and are initialized. Next, in step S41, the control mode flag RMODE, which is a control signal from the copying machine main body IQQ, is checked, and the control mode flag RMODE is
is set, after executing the "free run recycle mode" subroutine in step S4t,
Returning immediately before step 341, the control mode flag RM
If ODE is not set, step 341
After executing the "copy recycle mode" subroutine, the process returns immediately before step S41.

The "free-run recycling mode" in step S4□ means that the originals stacked on the original tray 201 of the RDH 200 are sequentially circulated by each component of the RDH 200, the size of each original is detected, and the originals are transferred to the copying machine main body 100. This is an output mode, and while this mode is being executed, the copy making process of the copying machine main body 100 does not operate. Also,
Step S4. "Copy recycling mode" means that the originals are sequentially circulated based on the feed signal, which is the original feeding control signal from the copying machine main unit 10.
0 is a mode in which the copy creation process is executed in synchronization with the RDH 200.

The above two modes will be described in detail below with reference to flowcharts.

<Free run recycle mode> FIG. 37 is a flowchart showing the steps in the "free run recycle mode" subroutine of step S4□. In this free-run recycle mode, first, in step 84-1, the conveyor belt drive motor 214 that drives the conveyor belt 204 is turned on, and in step 542-2, the RDHBU indicating that the RDH 200 is exchanging originals is turned on.
The SY signal is output to the main control section 401 of the copying machine main body 100. Next, turn on the document feed motor 213 in S4□-
1), Steps 84□ and 4 check whether the original size sensor 267 in the original size detector 211 is ON, that is, whether or not the original is detected;
If no original is detected, repeat step S4! -4
Returning to the point just before , if the original is detected, the original feeding motor 213 is turned off in the next step S4□4. Then, in the next step 542-h, a "document size check" subroutine is executed. In this subroutine, the document size sensors 267 and 268 of the document size detector 311 are checked to detect the document size, and the next step S (1-
'? The document size data is output to the main control section 401 on the copying machine main body 100 side. As a result, as described above, the main control unit 401 stores the original size data in the RAM 441 and creates an original size data table as shown in FIG.

Then, in step 5nz-s, the photointerrupter 20
Check whether the final page detection sensor consisting of 8 is turned on. When it is determined that the last page detection sensor is OFF, it is checked in step s<z-q whether the document size sensor 267 is OFF, and when it is determined that the document size sensor 267 is ON, the document is Since the document still exists in the position facing the document size sensor 267, return to immediately before step 54t-6, and if the document size sensor 267 is OFF, this sensor 26
There is no document tray in the position opposite to 7, which means that the last page has not been conveyed yet, so step S4□-
Go back to just before step 1 and repeat the steps after that.

If it is determined in step 54Z-S that the last page detection sensor is turned on, timer 1 is activated in step 84. Start with step S4! - Check whether timer 1 has timed up in □, and when the time has expired, reset timer 1 in step S4□-1□, and start the conveyor belt drive motor 214 in step 54.
Turns off at 11-11.

The value of the timer 1 is set to a time sufficient for the document to pass over the contact glass 104 and be ejected to the document tray 201. After the conveyance belt drive motor 214 is turned off in step S4□-1, the filler reset motor 209 of the document final page detection filler 207 is turned on.
(S 4t-ta) and starts timer 2 (S 4t-ta).
4t-+s), whether timer 2 has timed up or not, step 34! Check at step 541-16, and if the time is not up, return to just before step 541-16, and if the time is up, reset timer 2.
+7), turn off the filler reset motor (3)
4t-ta) - The value of the timer 2 is set to a time sufficient for the document final page detection filler 207 to reach the top of the document tray 201. Then, in step 54z-+q, the RD HRE A DY signal is output to the main control section 401 of the copying machine main body 100, and then the process returns to the main flow.

<Copy Recycle Mode> FIG. 38 is a flowchart showing the control flow in the "copy recycle mode" subroutine of step 343. In this copy recycle mode, first,
In step 343-1, it is checked whether a feed signal, which is a document replacement request signal, has been output from the main control unit 401 of the copying machine main body 100. If it has not been output, the process returns to the main flow, and if it has been output, the feed signal is output. In step S43-! to send the RDHBUSY signal to the above main control unit/
101 and subsequently to the conveyor belt drive motor 21.
Turn on 4 (S 43-1), step S 4y-
Photo interrupter 20 as the last page detection sensor in a
Check if 8 is turned on. If it is determined in step S42-4 that it is NOl, that is, the final page has not been reached yet, then in step S43-5, the document feed motor 213 is turned ON, and it is determined whether the document size sensor 267 is ON or not. Check in S43-b. If it is determined in this step S43-6 that it is not turned on, it is determined that the original is not detected and the process returns to step S343-6; if it is determined that it is turned on, In the next step S4□-7, the document feed motor 213 is turned off, and the step 34! −
Step S43-I similar to 1° to S4□-1,
ll S 4:1-91 S as-+. ＋S
4: After 1-11, the RDHBUSY signal is sent to step 3.
43-1□ returns to 0FFL and immediately before step 54ff-1.

Further, in step S43-4, the photo interrupter 20
If it is determined in step 8 that the final page detection sensor is ON, it is assumed that all the originals have been conveyed, and step 543-+3 + similar to steps S4□-14 to S4:l-1'l is performed. 842-14 r 343-
1% rS as-rb + S ax-+q is executed, and in step 5ax-+s, the original end signal, that is, a signal indicating that all originals have circulated through the RDH 200 and returned onto the original tray 201, is sent to the copying machine. Main body 1
00 main control unit 401, and step 543-I+
Returns just before the time and turns off the conveyor belt drive motor 214
Then, turn off the RDHBUSY signal and proceed to step 54ff.
The transition is made immediately before the check step of the feed signal of -1.

Controlling the finisher FIG. 39 shows the control flow of the finisher.

In the finisher 300, when the main switch 126 of the copying machine main body 100 is turned on, a +5V DC control current is supplied from the power supply section 408 to the main control section 350, and the control program is started. When the control program starts in this way, first, step S. Finisher 3
A subroutine "initial setting" is executed to set the initial data and mode necessary for controlling the 00. Then step SS
+ to check whether a start signal has been output from the main control unit 401 of the copying machine main body 100, and if not, the main drive synchronous motor 374 is activated in step Ssz.
is set to 0FFL, and further, in step SS, the roller unit drive motor 328 is turned off, and the process returns to immediately before step SSI.

Further, if the start signal is output in step SS+, the process moves to step 353 and the population sensor 307a is turned off.
It is checked whether the transfer paper P has reached the position of the population sensor 307a or not. If it has not reached the position, the process returns to immediately before step SS3, and if it has reached the position, the subroutine goes to the next step SS4. Execute. This subroutine starts after the timer control unit 351 sets an arbitrary value TIMA in timer 1.
The time required for reaching the reference change unit 313 mentioned above after passing through a is set.

After executing the subroutine of step S%4, in step S, '1' is added to the register that counts the number of sheets of transfer paper P passing through the population sensor 307a, that is, the transfer paper count register (Co, C0UNT), and in step SS &
Execute the subroutine “Size Check” with . In this subroutine, as already explained using FIGS. 15 and 16, the transfer paper size is determined based on the outputs of the entrance sensors 307a and 307b and the detection time of the population sensor 307b. Next, the subroutine 1-approach roller unit control, which will be explained in detail later, is executed in step SST, and in step SSM it is checked whether or not timer 1 has timed up.If the result of the check is that the timer 1 has not timed up, then step 5ell is executed again. Go back to just before
If the time is up, timer 1 is set at the next step ssq.
is reset, and the size of the transfer paper is A3 in step S6゜.
Check the size. If it is not A3, it is checked in step 8thI whether the right binding mode is set. This right binding.

The left binding mode signal is output from the main control section 401 of the copying machine main body 100 in response to input of the staple key 129.

If it is not the right binding mode in this step Sol, that is, if it is the left binding mode, the reference change roller drive solenoid 321 is turned on to bring the reference change roller 315 into contact with the transfer paper P, and in step sbs, the transfer paper The size of P is A4 size
Check if it is. If the size is 4, the timer control unit 351 sets the arbitrary value 0NA to timer 2 in step 364.
Set 4 and step S. If the size is not A4, an arbitrary value ONB 4 is selected to the timer 2 in step sbs, and the process moves to step Sbh. The arbitrary values ON A4 and 0NB4 set in the above-mentioned timer 2 are set to the time required to optimally change the reference size to 4 size and B4 size, respectively.

After starting timer 2 as described above, it is checked in step Sb1 whether or not timer 2 has reached the above arbitrary value. If not, the process returns to immediately before step S67, and if it has reached, in step S61, is reset, and the reference change roller drive solenoid 321 is turned off in step saq. 36 from these steps Shz
By the processes up to 9, accurate reference change control for each size of transfer paper P can be performed on the entrance side of the finisher 300.

When the reference change is completed as described above, it is checked in step Sw. whether the transfer paper P has reached the position of the paper discharge sensor 311 via the conveyance path 309 by the paper discharge sensor 311. Step S if you haven't reached it yet. If the time has been reached, the timer control unit 351 sets the arbitrary value DEL1 to the timer 3 and executes a subroutine to start. The above arbitrary value DEL 1 is transfer paper P
is set to a time sufficient for the rollers to reach the rollers 335. And step S? Check whether timer 3 has timed up at t. If not, return to step 5ffffi, and if timed up, step S? 3 sets arbitrary value D to timer 3
Set EL2 and start. The arbitrary value DEL2 is set to the time required to optimally move the transfer paper P to the right binding or left binding reference position. After starting by setting DEL2 in timer 3 in step S73, first, in step St4, the shifting roller drive solenoid 342 is turned on, and in step 5ffS, it is checked whether or not the timer 3 has timed up. If the timer 3 has not timed up, step 5ffS Return to the previous point, and if the time is up, turn off the roller drive solenoid 342 in step ST&,
At step 377, timer 3 is reset.

Next, in step Som, it is checked whether the count value of the transfer paper count L/register (Co, COUNT) matches the number of copies, and if it does not match, the process returns to immediately before step S51, and the interstep is repeated again. S.S.
Follow the steps below, and if they match, set the value of the transfer paper count register (Co, C0UN'l') in step Sqq.
to reset. The data on the number of copies is transmitted from the main control section 401 of the copying machine main body 100 to the main control section 35 of the finisher 300 via the interface line 601.
It is output to the 0 side.

Step S? After the transfer sheet count register is reset in step 9, it is checked in step sea whether or not the staple mode is on. In the stable mode, the stable solenoid 371 is turned on in step S1, and in step Ssz, the timer 4 is set to an arbitrary value TIM by the timer control unit 351.
A subroutine is executed to start by setting B, and in step SI:l, it is checked whether or not timer 4 has timed up. Arbitrary value TIMB set in timer 4
is set to the time required to stabilize the transfer paper stack. If the time is not up in step S113, the process returns to immediately before step S0, and if the time is up, the timer 4 is reset in step S84, and then the stable solenoid 371 is set in step S6S.
Turn it off. Thereafter, in step S11&, the paper ejection clutch 370 is turned on, and in the next step S17, a subroutine is executed in which the timer 5 is set to an arbitrary value TlMC by the timer control section 351 and started. Arbitrary value TlMC
The stack of transfer sheets after stabilization is transferred to the second paper output tray 303.
It is set to the time required to discharge. Step S
After executing the subroutine , it is checked in step 5ill whether or not the timer 5 has timed up. If the timer 5 has not timed up, the process returns to immediately before step 5afi, and if the time has been up, the timer 5 is reset in step 5l19, and then, In step S9°, the roller unit drive motor 328 is turned off, and the step Ss
Return to immediately before step 1 and re-execute the steps following step SSI.

In addition, the above step S. If it is determined that the stapling mode is not in effect, the process moves to immediately before step 5l16, and the same procedure is followed.

Furthermore, in step S6°, the size of the transfer paper P is changed to A4.
If it is determined that the size is, and step Sol
If it is determined that the right binding mode is selected, proceed directly to step S. Transfer just before step S? . Perform the following steps.

Controlling the retracting roller unit〉 Continue with step 35? “Pushing roller unit control”
The following subroutines will be explained.

FIG. 40 is a flowchart showing the contents of a subroutine for controlling the shifting roller unit. The function of this subroutine is to change the position of the shifting roller unit 333 to the reference position depending on right binding or left binding.

In this flow, first, in step ss'r-+, it is checked whether the right binding is left binding, and if it is right binding, step ss is executed.
At -z, it is checked whether the right positioning sensor 330 is turned on, that is, whether it is at the specified right reference position. If the right reference position is not reached, step S, 7. The first roller unit drive motor 328
As shown in FIG. 9, it rotates in the right reference position moving direction, moves the bringing roller unit 333 to the right reference position, and then moves to step Sl? When it is confirmed that the moving roller unit 333 is at the right reference position in steps S6 and 4, which return immediately before step S-2, the next step S! i? -4, the shifting roller unit drive motor 328 is stopped, and in step s5t-s, the shifting roller driving motor 324 is rotated in the direction in which the transfer paper P moves to the right, that is, in the direction of arrow e in Fig. 19, and the main flow is started. Return.

In addition, if left binding is determined in step SS'l-1, the left positioning sensor 32 is activated in step 5ST-b.
9 is turned on, that is, whether the shifting roller unit 333 is at the specified left reference position. If it is not at the left reference position, step S.
S, -ff rotate the shifting roller unit drive motor 328 in the left reference position movement direction as shown in FIG. 18, move the shifting roller unit 333 to the left reference position side, and return to just before step ss''r-b. When it is confirmed in step s5t-b that the shifting roller unit 333 is at the left reference position, the shifting roller unit displacement motor 328 is stopped in the next step s5t-a, and then in step s5t.
-q, the roller drive motor is rotated in the direction in which the transfer paper P moves to the left, that is, in the direction of the arrow d in FIG. 18, and the main flow is returned to.

Summary of Operations> The operations of the copying machine according to the embodiment described above in detail will be summarized here.

First, for example, there are three types of sizes A3. B4. A4 mixed originals on the original tray 201! ! the paper feed trays 120, 12 by pressing the transfer paper selection key 134 on the operation unit 125.
The paper feed from No. 1 and 122 is set to [automatic] displayed on the display unit 135 instead of manual selection. Then, the user presses the automatic magnification selection key 140 from the special function key group 139 to set the automatic magnification. As a result, the copying process is performed according to the maximum size selection mode, which is preset in the main control unit 401 of the copying machine main body 100, for example.

Then, when you press the print start key 131, first,
The RDH 200 feeds all originals one by one and stores the size of each original in the order of stacked pages.

Based on this stored result, the size of the transfer paper that is the same as the size that has the largest number of sheets is selected. As a result, transfer paper of the same size is supplied only from the paper feed tray in which the paper of that size is stacked. In this way, when the original size and transfer paper size are determined, the ROM 411 is
Write inside 4. Determine the appropriate magnification for each document by referring to the magnification data table provided, and select the maximum magnification and minimum magnification from among them. With this selection, as shown in FIG. 41, for example, the minimum magnification is 71% for A3 and B4 size documents, and 10% for A4 size documents.
Copies will be made at the maximum magnification of 0%.

Therefore, the magnification to be copied is set for each document, and the RDH 200 is operated to copy only the document with a magnification of one of the magnifications, for example, 100%, and the copied transfer paper P is temporarily transferred to the intermediate tray 175. Stack it on. Then, the optical system is changed to the other magnification, in this case, 71%, and while the RDH 200 is driven to circulate all the originals, the A4 original that has already been copied is skipped and the A3.
Copy only B4 originals. As this copying progresses, the copies of the skipped originals are also ejected from the intermediate tray 175, and are placed on the original tray 2 on the finisher 300 side.
The sheets are ejected in the order in which they were stacked on A4. You will get a bunch of copies of size. In other words, as you can see from the figure, an A3 original is made by forming a copy C (A3X0.71) reduced to A3X0.71 on A4 transfer paper P.
A B4 original is a copy C (B4X0.71) reduced to B4X0.71 on A4 transfer paper P.
Each of the originals No. 4 is a copy C (A4x1) of A4x1 original size formed on A4 transfer paper P.

Even in maximum size selection mode, if the maximum document size is different from the one described above, or if there are a wide variety of document types, the optimal process will be automatically performed according to the flow described above. .

Further, in the intermediate size selection mode, processing is performed according to the above-mentioned subroutine based on the intermediate size.

Furthermore, in this embodiment, the original size is 3fM and the transfer paper stacked on the transfer tray is of three types, but the same applies to the case of four or more types of original sizes or two types of original sizes. It goes without saying that similar processing is performed based on the technical concept of .

〔Effect of the invention〕

As is clear from the above description, since the present invention is configured as described above, it produces the following effects.

(1) According to the copying apparatus according to claim (1), according to an operator's instruction, a size of transfer paper that is considered to have good copying efficiency according to the size of the original is selected from among a plurality of sizes of transfer paper. Type can be selected automatically. This eliminates the need for the copier operator to check the type and number of originals and select the transfer paper, making it possible to efficiently copy originals of different sizes onto the same size of transfer paper. become.

■ According to the copying apparatus according to claim (2), the size of the original is divided into two size categories based on all the stored original size data, and the size of the original is divided into two size categories, and the size of the original is divided into two size categories, and the size of the original is divided into two size categories only at two different magnifications including the same size as the original. Can be copied. This makes it possible to efficiently copy documents of different sizes onto transfer paper of the same size.

According to the copying apparatus according to claim (3), while feeding mixed originals in order, only originals belonging to one size classification are first copied and stored in the intermediate tray, and then originals belonging to other classifications are copied at different magnifications. Since the copies are made and the sheets are ejected in the order in which they are mixed, there is no need to rearrange them later, even if the copy mode is different, allowing for efficient copying work.

According to the copying apparatus according to claim (4), an intermediate-sized original is used as a reference, two types of magnification are set for transfer paper of the same size as the intermediate-sized original, and copies are made with good copy balance and high efficiency. able to perform work.

According to the copying apparatus according to claim (5), based on the most frequently used original size, one type of transfer paper that is the same size as the most frequently used original size and which is most frequently used is selected, and copies are made at two different magnifications. Therefore, highly efficient copying work is possible.

[Brief explanation of the drawing]

The figures are all for explaining the present invention in detail; FIG. 1 is a schematic explanatory diagram showing the overall configuration of a copying machine according to an embodiment, FIG. 2 is a front view showing the operation section of the copying machine, Fig. 3 is a schematic plan view showing the variable magnification mechanism, Fig. 4 is for explaining the transfer paper size detection means, and Fig. 4(a) is a paper feed tray showing the paper feed tray and the size detection sensor. A schematic cross-sectional view of
FIG. 4(b) is a diagram showing the relationship between the output of the size detection sensor and the transfer paper size, FIG. 5 is a perspective view of the main parts of the reversing unit,
FIG. 6 is an explanatory diagram of the operation of the reversing unit, FIG. 7 is a side view of the main parts of the reversing unit, and FIGS. 8 and 9. Figures 10, 11, and 12 are explanatory diagrams of the operation of the reversing unit, Figure 13 is a schematic diagram of the RDH, Figure 14 is a schematic diagram of the finisher, and Figure 15 is the arrangement of the entrance sensor. An explanatory diagram, FIG. 16 is a diagram showing the relationship between the output of the entrance sensor and the transfer paper size, FIG. 17 is a schematic configuration diagram of the belt conveyance section, and FIGS. 18 and 19 are diagrams each explaining the operation of the shifting roller unit. Fig. 20 is a block diagram showing the control system of the copying machine, Fig. 21 is a control block diagram of the main body control section of the copying machine main body, Fig. 22 is a control block diagram of the RDH, Fig. 23 is a control block diagram of the finisher,
Fig. 24 is a flowchart showing the main control flow of the copying machine main body, Fig. 25 is a flowchart showing the control flow of the transfer paper selection (1) subroutine, and Fig. 26 shows another example of transfer paper selection (I). A flowchart showing the subroutine control 70-, FIG. 27 is a flowchart showing the control flow of the subroutine for magnification selection,
FIG. 28 is a diagram showing the relationship between addresses stored in RAM and original size data storage, FIG. 29 is a diagram showing the magnification between the sizes of originals and transfer paper stored in advance in ROM, and FIG. 31 is a flowchart showing the control flow of the AMS process select subroutine; FIG. 32 is a flowchart showing the control flow of the LM mode subroutine; FIG. The figure is a flowchart 1 showing the control flow of the priority magnification selection subroutine. FIG. 34 is a flowchart showing the control flow of the original initial set subroutine, and FIG. 35 is a flowchart showing the control flow of the original initial set subroutine.
Flowchart showing the control flow of the T mode subroutine, FIG. 36 is a flowchart showing the control flow of RDH main control, FIG. 37 is a flowchart showing the control flow of the free run recycle mode subroutine, and FIG. 38 is the copy recycle mode. FIG. 39 is a flowchart showing the control flow of the finisher control flow, FIG. 40 is a flowchart showing the control flow of the subroutine of the collapsing roller unit control 1, and FIGS. 41(a), (b),
(c) is an explanatory diagram showing the relationship between the transfer paper and the copied image of the copied original. 1... Copy machine, 100...
・Copier main body, 134...Transfer paper selection key, 175...Intermediate tray, 180...
・・・・・・Magnification mechanism, 200・・・・・・・・・R
DH, 267, 268......Original size sensor, RAM...441゜Figure 6 To the prize Figure 5Figure 7Figure 8Figure 9 Figure 1O, Figure 7 Figure 7 Figure 15d0 1680 Figure 14/ Figure 17 Figure 15 Figure 16 flsOr<52nSO1"1 Figure 18 Figure 19 Figure 25 Figure 26 Figure 27 Figure 33 Figure 34 Figure 35 C pieces 2) C D Figure 41 (a) (b) (C)

Claims (5)

[Claims] (1) Circulating automatic document feeding means capable of automatically feeding mixed originals, document size detection means, storage means capable of storing the size of each document, and variable size of the document to be transferred to transfer paper In the copying apparatus equipped with a variable magnification means, the mixed originals are once circulated by the circulating automatic document feeding means, the size of each original is read by the size detection means, and the sizes of all the originals are stored in the storage means, A key that automatically selects either transfer paper of a size equivalent to an intermediate size original or transfer paper of a size equivalent to the largest size original from multiple original sizes based on the memorized original size. A copying apparatus characterized by having an input means. (2) A circulating automatic document feeding means capable of automatically feeding mixed originals, a document size detection means, a storage means capable of storing the size of each document, and a variable magnification for changing the size of the document to be transferred onto copy paper. In the copying apparatus equipped with a variable magnification means, the mixed originals are once circulated by the circulating automatic document feeding means, the size of each original is read by the size detection means, and the sizes of all the originals are stored in the storage means, Based on the memorized original size, a copy mode has been set that divides multiple sized originals into two size categories and transfers them onto transfer paper of the same size at two different magnifications, including the same magnification as the original. A copying apparatus characterized by having a control means. (3) Equipped with an intermediate tray for temporarily storing copied transfer paper, and while feeding the mixed originals in order, only the originals belonging to one size category are copied first and stored in the intermediate tray, and then the originals belonging to other categories are copied. 3. The copying apparatus according to claim 2, further comprising a control means configured to set a copying mode for copying the mixed originals and discharging the mixed originals in the mixed order. (4) The copying apparatus according to claim (2), wherein the two magnifications are set based on an intermediate size original. (5) The copying apparatus according to claim (2), wherein the two magnifications are set based on the largest number of sizes of originals.