JPH08220940A - Copying device - Google Patents

Abstract

PURPOSE: To provide a copying device capable of forming an image on the optimum position of a tab part for various kinds of tab papers. CONSTITUTION: This copying device is provided with an automatic type circulation document feeder feeding a document one by one on an exposing position in page order from a sheaf of the documents 10 placed on a document placing part and returning the document again to the document placing part after exposure is finished, a first paper feeding tray set with a recording paper, a second paper feeding tray set with the tab paper 11, a paper supplying means supplying the paper set on the first and the second paper feeding trays, and an image forming part A forming the copying image of the exposed document, and has mode for forming the copy of the document part partitioned from the sheaf of the documents with the tab part 11. A tablet 210 and ten keys 207 for specifying which document out of documents in the document sheaf 10 is to be replaced with the tab paper 11, a tablet 210 and the ten keys 207 for inputting the length of the tab parts 11a to 11c of the tab paper 11, and a CPU setting an image forming position in accordance with the inputted length of the tab parts 11a to 11c are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying apparatus that sorts documents using tab sheets to form copied images.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 62-14660 or Japanese Patent Application Laid-Open No. 3-181955 is known as a conventional technology for creating a copy set including tab sheets having tabs by using an image forming apparatus such as a copying machine. The ones described are known. Among them, the former one discloses an image forming method on a tab sheet and a technique related to document image and sheet delay, and the latter one realizes tab copy using a recycle automatic document feeder (RDH). There is disclosed a double-sided document feeding method, a method of making a single-sided copy without reversing a tab document, and the like.

[0003]

By the way, since a conventionally known copying machine with a tab sheet insertion function has a fixed tab width, if a tab sheet different from a preset tab width is used, a recording sheet is not used. There is a problem in that the position of the image formed on the side shifts.

Further, when the tab copy and the binding margin are combined, the image of the tab sheet is displaced, so that the image of the tab original must be moved, which causes a problem of poor operability.

The present invention has been made in view of the actual situation of the prior art as described above, and a first object thereof is to form an image on an optimum position of a tab portion on various kinds of tab sheets. It is to provide a copying machine capable of performing the same.

A second object is to provide a copying apparatus capable of changing the image forming apparatus in consideration of the binding margin when binding tab sheets.

[0007]

In order to achieve the above first object, the first means is to feed one by one from the original stack placed on the original mounting portion to the exposure position in the order of pages and perform the exposure. After the completion, the circulating automatic document feeder which returns the document to the document placing section again, the first paper feed tray for setting the recording sheet, the second paper feed tray for setting the tab sheet, and the first and second Copying of the original portion divided from the original bundle into tab sheets is provided with a paper feeding means for feeding the paper set in the second paper feeding tray and an image forming means for forming a copied image of the exposed original. In a copying apparatus having a mode for creating a product, a designation unit that designates which of the documents in the document bundle is to be replaced with tab paper, an input unit that inputs the length of the tab portion of the tab paper, and an input To set the image forming position according to the length of the tab It is characterized in that it comprises a stage.

In order to achieve the above-mentioned second object, the second means further sets the amount of movement of the image with respect to the recording sheet when the image is formed by the image forming means in addition to the first means. A possible image movement amount setting means is further provided, and the image movement amount setting means is characterized in that the image movement amount can be changed between tab sheet copy and plain paper copy.

[0009]

In the first means, for example, by looking at the display section of the operation display section of the copying apparatus, it is set which tab sheet is to be used as the tab sheet by the input section provided on the operation section or the display section and the display screen is displayed. Change and enter the length of the tab of the tab paper. The control means sets an image forming position according to the input value input and forms an image at the position. This position setting is performed, for example, by changing the image forming timing. As a result, it is possible to set the tab sheet at an arbitrary position of the document stack and surely form an image on the tab portion wherever the tab portion is.

According to the second means, unlike a document other than the tab sheet, when the tab sheet document is moved by using the binding margin function, the tab sheet document is not properly copied to the tab portion but is displaced. When a document including a copy of paper is copied using the binding margin function, the image movement amount is set by the image movement amount setting means for the tab sheet document.
Specifically, by changing the binding margin movement amount, an image can be freely formed at the optimum position of the tab portion.

[0011]

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

[Overall Configuration] FIG. 1 is a schematic diagram showing the configuration of a copying machine as a copying apparatus according to an embodiment of the present invention. In the figure, the copier comprises a copier body A and an automatic document feeder B.

The copying apparatus main body A includes a scanner section A-1 and an image forming section A-2. The scanner unit A-1 includes a contact glass 101 on which an original is placed, an illumination lamp (fluorescent lamp) 102 which illuminates the original with illumination light from the back surface of the contact glass 101, and which receives the reflected light from the original and is horizontal. A first mirror 103 for deflecting the light in the opposite direction, and a second mirror for receiving light from the first mirror 103 and horizontally deflecting the light in the opposite direction.
And the third mirror 104, the through lens 105 that collects light from the second and third mirrors 104, and the reading light that is collected by the lens 105 is applied to the surface of the photosensitive drum 107 of the image forming unit A-2. It comprises a fourth, a fifth and a sixth mirror 106.

The image forming section A-2 includes a photoconductor 107, a charger 108 arranged along the outer periphery of the photoconductor 107, a developing device 109 for developing an image formed by charging with toner. A transfer charger 110 that transfers the image formed on the surface of the photoconductor 107 to a recording sheet, a separation charger 111 that separates the transferred recording sheet from the photoconductor, a separation claw 112, a charger 113, and a cleaner 114. The recording sheet on which the image is transferred includes a fixing device 115 that fixes the image, and the registration roller 116 conveys the recording sheet to the image transfer position at a timing. The recording paper is picked up from any of the paper feed trays 117, 118, and 119 and conveyed to the registration roller position. Further, in the case of double-sided copying, the sheet once stored in the double-sided tray 120 is conveyed to the registration roller 116 side. Fixing device 1
The recording sheet fixed in 15 is ejected out of the apparatus as it is, and when the one-sided copy is completed in the double-sided copy mode, it is ejected to the double-sided tray side. An operation unit 200 is attached to the upper right of the copying machine main body A.

The copying process is started by setting a necessary processing mode in the operation unit provided in the main body A of the copying machine and pressing the print key. First, the operation unit will be described.

[Operation Display Unit] FIG. 2 is a front view of the operation unit provided in the copying machine main body A. In this embodiment, the operation unit 200 is provided in the front part on the upper right side of the main body A of the copying machine, and has a mode clear key 201, an interrupt key 202, a program key 203, a guidance key 204, a print key 205, and a clear stop key 206. , A numeric keypad 207 and the like, and a display unit 208.

The mode clear key 201 is used to return each mode to the standard mode. By operating this key, the number of repeats is 1, the density is automatic density, the paper feeding is selected automatically, and the magnification is changed. It is set to double, and all other functions such as double-sided are canceled. The interrupt key 202 is used when making an interrupt copy, and the program key 203 is used when a user frequently registers and calls a mode that is frequently used. The guidance key 204 is used when displaying a description of basic operations and functions, and the print key (start key) 205 is selected when starting a copying operation. This also serves as a ready / weight display. The green LED when ready and the red L when waiting
ED lights up. The clear / stop key 206 has the functions of a clear key during standby and a stop key during copying. The clear key is pressed when releasing the set number of copies, the stop key is pressed when interrupting the copying operation, and the machine is stopped when the copying operation at that point is completed. The ten-key pad 207 is used for setting the number of copies, inputting a numerical value for zoom magnification, and binding margin.

The display unit 208 is of the CPT type and displays functions, states, messages and the like. This display is configured as a touch panel 210 which has touch keys on the surface and serves as function keys as well as selection keys. The selected mode key is displayed in white letters on a black background,
The unselected mode key is displayed in black characters on a white background.
Although a CRT is used in this embodiment, a known display device such as LCDC may be used.

FIG. 3 is a circuit diagram showing an example of a touch panel detection circuit of the touch panel key 210. In the figure, the controller 212 sets the detection terminals to the high state and sets X1, X2, Y1 and Y2 as shown in FIG.
Since the Y1 and Y2 circuits are pulled up by the resistor R, Y1 is +5 when the touch panel key 210 is off.
It becomes (V) and becomes 0 (V) when it is on. Therefore, A
The on / off state can be confirmed from the output of the / D converter 211. The controller 212 uses the touch panel keys 210
When the ON state of is detected, it switches to the measurement mode. In the X direction, X1 is +5 (V), X2 is 0 (V), the potential of the input position is connected to the A / D converter 211 through Y1, and the coordinates are calculated. Coordinates in the Y direction are also calculated by switching the circuit. The pressing position of the touch panel 210 is detected by such a detection circuit.

FIG. 5 is a block diagram showing an example of a control system of the operation unit 200. Operation unit 200
Is connected to the host copying machine (PPC) 220 by serial communication for exchanging commands. When the operation unit 200 receives a command from the host PPC 220 side, the operation unit 200 determines the contents to be displayed on the CRT 223, and stores the CGROM 225 mode, which is screen data stored in the ROM 230, which is a storage unit, in the VRAM.
221, and the bit pattern is displayed on the CRT 223 via the CRT controller 222. The CGROM 225 is a storage device in which a large number of bit patterns are stored, and the patterns are designated by a code and read. The bit pattern development area of the screen data in the VRAM 221 is divided into several parts, and the bit pattern of the screen different from the currently displayed screen can be developed, and the address of the display area of the VRAM 221 can be operated. By doing so, the screen can be rewritten in an instant. This allows screen development on the CRT 223. The CRT controller 222 is the CPU 2
24, a CGROM 225, a touch panel 210, a keyboard 227 driven by an LED driver 226, an address decoder 228, an address latch 22.
Exchange data with 9th grade.

The CPU 224 has an address latch 229,
Data is exchanged with the address decoder 228 and the like via the ROM 230, the non-volatile RAM 231, and the system reset unit 232. Further, the CPU 224 exchanges data with the optical transceiver 235 and the like.

FIG. 6 is a front view of the display unit 208. In the figure, reference numeral 240 denotes a message display, which displays information about the machine. The display is, for example, a message such as "copying is possible" or "copying is in progress". Reference numeral 241 is a set display area. A trial copy start key 242 is selected when it is desired to confirm the finished copy. This key is not displayed in the trial copy prohibited state, and the key input is invalid. A density adjustment key 243 is selected when manually adjusting the copy density. 244
Is an automatic density key, and is selected when the copy density is automatically adjusted according to the background density of the original. Reference numeral 245 is a tray selection key, a paper size, a remaining amount display area, and a paper type display area, which are composed of a plurality of keys and a display area according to the paper feed stage. Reference numeral 246 is an automatic paper selection key. When this key is selected, a tray containing paper of the same size as the original is automatically selected. Reference numeral 247 is a paper designation scaling key,
Select when you want to automatically reduce or enlarge the original image to fit the specified paper size. 248 is the same size key,
Select when copying at the same size. Reference numeral 247a is a magnification display area.

Reference numeral 249 denotes a fixed-size variable key, which is selected when designating reduction or enlargement of the fixed size. Reference numerals 250 and 251 denote zoom keys, which are selected when an arbitrary magnification is designated in 1% steps. A size scaling key 252 is selected when it is desired to reduce / enlarge to a specified size. Reference numeral 253 is a document size and copy size display area when the size is changed. 25
Reference numeral 4 is a single-sided → double-sided key to make a double-sided copy of a single-sided original.
Reference numeral 255 is a double-sided → double-sided key to make a double-sided copy of a double-sided original. Reference numeral 256 denotes a double-sided → single-sided key, which is selected when a double-sided original is to be a single-sided copy.

Reference numeral 257 is a surface binding margin size display area. 258 is a front binding margin key, which is used when a binding margin is required.
If it is 1 mm or less, it can be set on either the left or right side. 25
Reference numeral 9 denotes a back binding margin size display area. A back side binding margin key 260 can be set to the back side document or back side copy in the same manner as the front side binding margin key. Reference numeral 261 denotes a delete key outside the edit mode, which is selected when a part of the original is designated and the outside thereof is erased to make a copy. Reference numeral 262 denotes an erase key in the edit mode, which is selected when a part of the original is designated and the inside thereof is erased to make a copy. Reference numeral 263 denotes an edit mode center erase key, which is selected when the central portion of the original is erased to make a copy. Numeral 264 is an erasing size display area. Reference numeral 265 denotes a front cover key, which is selected when the first original sheet is copied as a cover only sheet. Reference numeral 266 denotes both cover keys, which are selected when the first and last sheets of the original are copied with the cover-only sheet. 267
Is a tab key, and is selected when the designated area of the original is to be copied on tab-only paper. Reference numeral 268 denotes an interleaf sheet key, which is selected when the original is inserted into a copy of the interleaf sheet special paper each time the original is changed.

[Operation of Copier] Next, a schematic copy process will be described with reference to FIG. The circulating automatic document feeder ARDF has a document placing table 201, and a document placed on the document placing table 201 is fed by a document feeding roller 202 and conveyed onto the contact glass 101. The original is then illuminated by the fluorescent lamp 102. Light reflected from the original document exposes the photosensitive drum 107 by the first mirror 103, the second and third mirrors 104, the through lens 105, the fourth, fifth and sixth mirrors 106. Photoconductor drum 107
Is uniformly charged by the charger 108,
An electrostatic line image is formed by exposure. The electrostatic latent image on the photoconductor drum 107 has an unnecessary portion of electric charges removed by the eraser 126, is developed by the developing device 109, and is sent to the transfer portion. The developed document image is then transferred to transfer paper by transfer charger 110. The transfer paper is fed from any of the paper feed trays 117, 118, 119 and the double-sided tray 120 and is conveyed along the conveyance path 121.
The registration roller 116 feeds the image between the photoconductor drum 107 and the transfer charger 110 at the same timing as the original image on the photoconductor 107. Then, the transfer paper on which the image is transferred is separated by the separation charger 111 into the photosensitive member 107.
And is fixed by the fixing device 118 through the conveyance belt 122.

In the double-sided mode for copying on both sides of the transfer paper,
The double-sided switching claw 123 is switched to the double-sided tray 120 side, the transfer paper is sent to the double-sided tray 120 through the double-sided entrance path 124, and is temporarily stored in the double-sided tray 120. Also,
In the single-sided mode in which only one side of the transfer paper is copied, the double-sided switching claw 123 is switched to the paper discharge side and sent to the reversing unit 125, and the paper is discharged to the sorter while being reversed or non-reversed as necessary.

The photoconductor drum 107 is destaticized by the decharging charger 113 after the transfer paper is separated, and the residual toner on the photoconductor 107 is removed by the cleaning device 114 to prepare for the next copying. The sheets discharged to the sorter are stacked one by one in a bin, and when the number of sheets of the stacked sheets is stacked, the sheets are repeatedly discharged to the first bin to complete a copy of the number of sheets.

[Circulating Document Feeder] FIG. 7 is a sectional view showing the structure of the circulating document feeder B. In the figure,
The circulation type document feeder B includes a document placing table 301 on which a document to be fed is placed, a vacuum belt 302 which separates the document from the document placing table 301 one by one, and conveys the document to the apparatus. A document feeding roller 303 that conveys the document to the position side, an intermediate conveyance path 304 for delivering a document fed by the document feeding roller 303 to a document conveyance belt 306 described later, and an intermediate conveyance path 304 that conveys the document. A turn roller 305 that changes the conveyance direction of the original to the original conveyance belt 306, an original conveyance belt 306 that conveys the original sent from the turn roller 305 to the contact glass 101 side, and an original conveyance belt 306 that conveys the original. Paper output switching claw 3 for switching the paper output direction of the printed document
07, a document discharge path 308 for discharging the document, a switchback roller 309 for switching back the document in the document discharge path 308, and a forward discharge path for discharging the document when the document is normally rotated. 310, a document discharge roller 311 for discharging a document from the document discharge path 209 or the normal rotation discharge path 310, and a document partitioning claw 312.

When a document is fed to the contact glass 101 side by using the circulation type document feeder B having the respective components as described above, the document is placed face down on the document table 301 of the circulation type document feeder B. The placed document stack is the bottom sheet of paper 1.
The sheet is attracted to the vacuum belt 302 and is moved to the document feed port by the movement of the vacuum belt 302.
Prior to the feeding, the document partitioning claw 312 is once pulled in to the upper left side of the document and reappears to be set on the document stack. The original fed in this state is sent to the intermediate conveyance path 304 by the original feeding roller 303 and temporarily stopped. The stopped original is set on the contact glass 101 by the turn roller 305 and the original conveying belt 306 by the subsequent restart.

When continuously feeding, the next document is set on the intermediate conveying path 304 by simultaneously executing the paper feeding operation. The document set on the contact glass 101 is discharged by the document conveying belt 306 and the document discharge roller 313.
The document is conveyed to the document discharge path 308 by the and, but the discharge method is different between the one-sided document and the two-sided document.

The paper feeding operation for a single-sided original is as follows. That is, the document on the contact glass 101 is guided to the document discharge path 309 by the document transport belt 306,
Once the trailing edge of the document that has entered the discharge path is detected by a reversing sensor (not shown), the switchback roller 309 rotates in the reverse direction and the document runs in the reverse direction. At this time, since the discharge switching claw 307 is operating, the document is guided to the normal rotation discharge path 310,
Documents are discharged in the same direction onto the document stack on the document table 301 by the document discharge rollers 311.

On the other hand, in the case of a double-sided original, the switchback roller 309 does not rotate in the reverse direction and the original discharge path 30 remains unchanged.
Go to 8. Therefore, when stacking again on the document table 201, the top and bottom are reversed. When the paper is fed in this state, the back surface is exposed on the contact glass, and the original state is restored by passing through the document discharge path 308 again.

Then, the same process is performed on all the documents sent one after another, so that one copy is created.

[Tab Copy Mode] The tab copy mode is a mode in which, when a copy of an original is created, a part of the copy is inserted into the copy instead of the tab sheet. That is,
Specify whether or not to make the original a tab sheet, copy the paper for the specified original to the tab paper of the tab paper tray,
In other modes, sheets are fed from other trays to create a copy with tab sheets inserted. The tab copy setting is performed by selecting the tab key 267 and inputting the number of the original to be changed to the tab sheet.

<< Tab Paper Feed Tray >> The tab paper feed tray, in other words, the tab paper tray 401 is as shown in the perspective view of FIG. As shown in FIG. 11 described later, the tab sheet 11 is different from the normal sheet in the tab portion (tab portion 1).
1a, 11b, 11c), the back fence 4
The reference numeral 02 extends laterally so that the tab portions 11a to 11c can be pressed.

The tab sheet tray 401 may use any of the tray structures of the sheet feeding trays 117 to 119 in FIG. 1 as the tab sheet tray as shown in FIG. 8, or the structure as shown in FIG. It is also possible to separately prepare the attachment and set it in the paper feed trays 117 to 119 so that it can be used.

<Paper Feed Mechanism and Feed Control> A tab paper feed mechanism is shown in the perspective view of FIG. As can be seen from the figure, the feeding of the tab sheet is sent to the sheet feeding sensor position by the calling roller 404 which is interlocked with the sheet feeding roller 403, similarly to the normal recording sheet. When the paper feed sensor detects the leading edge of the tab paper in order to make the paper feed intervals uniform, the paper feed roller 403 is temporarily stopped, and the paper feed roller 403 is rotated again after a lapse of a predetermined time. As a result, the tab sheet is gripped by the grip roller and conveyed. When tab sheets are conveyed one after another, the number of sheets decreases and the calling roller 404 pressed against the sheet surface lowers, the upper limit detection shield plate 405 also lowers, and when it is no longer detected by the upper limit detection sensor 406, a tray raising motor (not shown) is driven. Then, the tab sheet tray 401 is raised.

<< Inversion Control >> The mechanism of the inversion unit is shown in FIG. When the sheet is not reversed, the reversing branching claw 134 is set at a position where the sheet is linearly conveyed, and is conveyed by the sheet discharging branching claw 135 to the double-sided tray 120 side or the sheet discharging side. When reversing the sheet, first, the reversing branch claw 134 is set to a position where the sheet is guided to the reversing path 133. The sheet is guided to the reversing path 133 by the reversing branch claw 134, and after the rear end of the sheet is detected by the reversing entrance sensor 132, after a predetermined time has elapsed, the reversing branch claw 134 changes its position and then the reversing tapping roller. The solenoid 136 presses against the paper by the solenoid, and the paper reverses in the traveling direction, and the discharge path 13
Sent to 7.

In the case of a tab sheet, the trailing edge of the sheet changes depending on the tab position, and therefore it is not possible to reverse the sheet only by detecting the trailing edge. Therefore, the following method is executed. When the reverse entrance sensor 132 detects the leading edge of the tab sheet, the timer is operated to measure the time until the sensor detects the trailing edge of the tab sheet. If the passing time is the same as the passing time of the paper size, the rear end is not the tab portion, and therefore the reversing operation is executed after the length of the tab has elapsed. If the value is the value obtained by adding the paper size and the length of the tab portion, this rear end is the rear end of the tab portion, and thus the above reversal operation is executed.

<< Tab Copy Operation >> The tab sheet insertion copy operation will be described below. FIG. 11 is a perspective view showing a state in which the tab sheet 11 is inserted in the middle of the document stack 10. When the tab sheet 11 is inserted in this manner, the tab portions 11a, 11b, 11
Documents are clearly classified because c projects from the side surface. The tab paper 11 is the tab paper tray 4 at the preset paper feed tray position.
01 is set so that the young tab of the page comes to the front. Further, normal paper is set in a paper feed tray other than the tab paper tray 401. The tab sheet designation screen shown in FIG. 12 is used to determine which sheet of the document is the tab sheet 11. On the tab sheet designation screen, when the tab key is selected, a window in which an original can be designated opens, and a ten key 207 and an enter key (#) are displayed.
At 276, it becomes possible to specify an original to be a tab. FIG. 12 shows, as an example, the fifth sheet, the tenth sheet, and the first sheet.
The third sheet of the fifth sheet is input. Although the number of tab sheets that can be specified is 10 in this embodiment, it is possible to easily add more tab sheets. When the required input is completed, close this screen with the end key. As a result, the screen returns to the mode setting screen of the initial screen and copying is possible.

As described above, tab copying can be performed up to 10 places in this embodiment. However, when 10 places are designated, one set of tab sheets is composed of 10 sheets. If this is not the case, the tab positions will change for each copy when creating multiple tab copies. That is, in order for tab copy to be established correctly, it is necessary that the specified number and the number of tab sheets in one set are equal. To check this, set the number of tab papers that have been set in advance, and if there is a difference compared with the number of data input by the tab paper designation, display it together with the print key. Prevents an incorrect copy from being created by setting red to a state where copying cannot be done. For that, first
A tab sheet number input means for inputting the number of tab sheets of the set is provided.

FIG. 13 shows this data input screen. FIG. 14 is a flowchart showing a processing procedure of a tab number check routine at the time of tab sheet copying. In this process, first, in step S1, it is determined whether or not the data input is completed, and if it is completed, the tab circulation number (the number of sheets per tab sheet) is read in step S2, and the step S2 is executed.
At 3, it is checked whether the tab circulation number is equal to the input data number. If they are equal, the process is terminated. If they are not equal, the print key is turned red in step S4 to stop the execution of copying, and a message to that effect is displayed on the display unit in step S5, and the process is terminated.

Of course, the number of tabs to be inserted and the tab paper tray is 1
There is no problem if you remove excess tab paper from one set of tab paper so that the number of tabs in the set matches, and then set it again in the tab paper tray. Should be. As a method for automating this, an extra tab sheet may be ejected after one copy is completed.

For that purpose, first, the data of the tab sheet number input means is compared with the number of data inputted by the tab sheet designation, and if they are different, the display is made, but the print key is not made red. Then, the tab copy is enabled and the above tab copy is executed. When one copy of the document is completed and one copy is completed, a difference of the number of data of the tab sheet number input means and the number of data input by the tab sheet designation remains out of one set of tab sheets, and therefore, an extra sheet is continuously added. The tab sheet 11 is ejected. The discharge is performed in the same manner as the normal discharge of the tab sheet 11. A timing chart at the time of this discharge is shown in FIG.

The timing chart shown in FIG.
This is the last of the five originals, and is fed and ejected after the Nth sheet is completely fed. The registration rollers are driven but not executed otherwise. By doing so, the extra tab sheet 11 can be automatically ejected.

<< Jam Recovery During Tab Copy >> When a jam occurs during tab copy, it is not necessary to replenish the tab paper 11 if no tab paper 11 remains in the machine. However, when the tab paper 11 in the machine remains, the tab paper 11 in the tray 401 becomes short accordingly. Therefore, it is necessary to newly replenish the shortage of tab paper 11 unlike copying of normal paper. When the required number of tab sheets 11 is displayed when it is necessary to replenish in this way, the operator can immediately determine whether or not the tab sheets 11 are short and can cope with the shortage, thereby improving usability. Become. For that purpose, the number of fed tab sheets 11 and the number of ejected tab sheets 11 are counted for each cycle of the original, and when a jam occurs, the difference is displayed. Of course, the difference is 0
If so, there is no need to give a special display. FIG. 16 is an example of a display on the display unit that displays the number of deficient tab sheets 11 after the jam.

Subsequently, in the case where the tab paper 11 remains in the machine and the tab paper 11 in the tab paper tray 401 is insufficient, a method of discharging the next necessary tab paper 11 to the outside of the machine before resuming copying will be described. To do.

When a jam occurs and the tab paper 11 remains in the machine, the tab paper 11 in the tab paper tray 401 runs short, but the shortage is for one copy, and the next copy is set. The tab paper 11 for making remains. for that reason,
Tab paper 11 required next before resuming copying after jam
The tab sheet 11 is ejected until it becomes. For example, when the tab sheet 11 is discharged to the second sheet, the third and fourth sheets are fed and jammed, and the number of circulation of the tab sheet 11 is 5, the tab sheet tray 4
If 01 to 5, 1 and 2 are discharged to the outside of the machine, the tab paper 11 from the third sheet can be used, and no processing is required. That is, the tab sheet 11 to be ejected is obtained by (number of circulation)-(number of feed tabs-number of completed tabs).

Here, the number of sheet feeding tabs is the number of sheets fed from the first sheet of the tab sheet 11 and the number of completed tabs is the number counted from the first sheet of one set. This is the number of tab sheets 11 that have been ejected. Since the paper feeding operation at this time is the same as that of tab paper feeding, description thereof will be omitted. By ejecting in this manner, jam recovery can be performed without adding the additional tab sheet 11.

<Image formation on the tab portion> Image formation on the tab portion is performed as follows. An image to be displayed on the tab is created in the portion corresponding to the tab position at the right end of the document. This image is irradiated with light as in normal image formation to form a toner image on the photosensitive drum. At this time, the timing of image formation is
Delay the tab length so that the image on the right edge of the document matches the tab. The timing at this time is as shown in the timing chart of FIG.

In FIG. 17, (1) is the timing of the document feeding operation, (2) is the timing of the optical scan, and (3) is the operation timing of the registration clutch.
(4) shows the normal paper feed timing, and (5) shows the tab paper feed timing. The numbers in the chart show the correspondence of each timing. In this figure, "3" is the timing of the tab sheet 11, and the other timings are the normal sheet copy timing.

In the case of copying the tab sheet 11, the tab sheet 11
The optical scanning is delayed by the amount of image movement so that the rear end portion of the tab document can form an image on the tab portions 11a to 11c of the tab sheet 11. In this timing chart, the deviation between the paper feeding and the tab paper feeding is the difference in the tray positions.
The dotted line shows the timing for normal copying,
The reason why the optical scanning is delayed as compared with the normal timing is that the image formation on the photosensitive drum 107 is delayed and an image is formed on the tab portions 11a to 11b of the paper. The timing of the registration clutch is tab parts 11a to 11b.
It will be turned on longer than usual by the length of. Once
When the tab sheet 11 is inserted in the middle, the timing thereafter is shifted by a timing corresponding to the length of the tab sheet 11.

Further, in order to deal with the tab paper 11 having different lengths of the tab portions 11a to 11c, the tab portions 11a to 11c
It is necessary to input the length of c so that image formation can be performed accordingly. Therefore, the copying apparatus according to the present embodiment is provided with a mode for inputting the lengths of the tab portions 11a to 11c. This mode can be entered by inputting a special code with the ten keys 207 on the copy setting screen. Therefore, when the tab length input mode is selected, the device input screen is displayed and the length can be input. FIG. 18 is an example in which 7 mm is input. The amount of timing shift is determined by the length thus input.

When copying to the tabs 11a to 11c, the copying operation differs depending on the single-sided mode and the double-sided mode. Hereinafter, the single-sided mode and the double-sided mode will be described separately.

In the single-sided mode, the originals other than the tab sheet 11 are subjected to a normal copying operation to form an image on the sheet of the selected tray, and the sheet is discharged to the sorter, and the discharge bin is changed every time the sheet is discharged. When the number of originals set on the tab sheet 11 is reached, the tray is switched, the tab sheet tray is selected, and the tab sheet 11 is fed. The image formation on the tab portions 11a to 11c of the tab sheet 11 is performed by delaying the image formation timing. This method is the same as in the case of forming a binding margin, but since the movement amount is determined by the tab width, it is necessary to control the width to be different from that for normal copying. This tab width can be determined by inputting the tab width data on the mode setting screen described above. That is, the original corresponding to the tab sheet 11 is attached to the contact glass 1
Although the original is exposed after being set on 01, the start timing of the paper conveyance is delayed by the input data so that the trailing edge of the timing coincides with the trailing edge of the original.

Even when copying in the double-sided mode, the tab paper 11
Is a one-sided copy, the operation is similar to that in the above-described one-sided copy mode. In the case of the double-sided mode, a copy of the front side is formed and once stacked on the double-sided tray 120,
After that, an image of the back side is formed on the sheet and discharged. In this case, it is not necessary to invert because the back side is ejected and the tab copy is a front side copy, so the tab copy is inverted and ejected. The inversion operation at this time is as described above.

When forming the binding margin, the movement timing needs to be independent of the binding margin setting value. Otherwise, the images formed on the tab portions 11a to 11c are moved, and it is necessary to create a tab document having a binding margin value in order to match the images. Therefore, the tab paper 11
The amount of image movement must be determined by the data entered in the tab width data entry above. FIG. 19 is a flowchart showing the processing procedure of this timing data determination routine.

In this process, first, in step S11, it is checked whether or not the tab copy mode is set, and if it is the tab copy mode, in step S12 it is checked whether or not the document is a tab-designated original. If the document is a tab-designated document, step S13
The tab length data is read in and timing data is created in step S14. If the tab copy mode is not selected in step S11 and the tab-specified original is not selected in step S12, the binding margin data is used in step S1.
In step 5, it is checked whether there is a binding margin setting. If the binding margin is set in this check, the binding margin data is read in step S16, and the timing data for the binding margin is created in step S14. If the binding margin is not set in the check in step S15, the timing data having no tab or binding margin is created in step S14 as it is. By doing so, it is possible to set the image movement amount at the time of the tab document independently of the binding margin value.

[0059]

As is apparent from the above description, in a copying apparatus having a mode for making a copy of an original portion separated from a bundle of originals on tab paper, which original among the originals in the original bundle is tabbed. According to the invention as set forth in claim 1, further comprising a designating unit for designating whether to replace the paper and a control unit capable of inputting the length of the tab portion of the tab paper, the length of the tab portion can be arbitrarily selected. , It is possible to set the optimum image position corresponding to a wide variety of tab sheets.

When an image is formed, an image movement amount setting means capable of setting the movement amount of the image with respect to the recording sheet is further provided, and the image movement amount setting means determines the image movement amount between the tab sheet copy and the plain sheet copy. Claim 2 configured to be changeable
According to the described invention, the image can be formed at the optimum position of the tab portion when copying to the tab sheet by changing the image movement amount. Further, when creating a document, it is possible to always create a document image corresponding to a tab sheet at the same position without paying attention to the binding margin setting for the tab sheet. Thus, as long as the copy image on the tab is the same, the original for tab copy can be used many times regardless of the copy mode.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a structure of a copying apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of an operation display unit of the copying apparatus according to the embodiment.

FIG. 3 is a circuit diagram showing a detection circuit of the touch panel of the operation display unit of the copying apparatus according to the embodiment.

FIG. 4 is an explanatory diagram showing a method of determining coordinates in the circuit diagram of FIG.

5 is a block diagram showing a control circuit of an operation unit of the operation display unit in FIG.

FIG. 6 is a front view of the display unit showing a display state of the operation display unit in FIG.

FIG. 7 is a schematic configuration diagram showing a structure of a circulation type document feeder provided in the copying apparatus according to the embodiment.

FIG. 8 is a perspective view of a tab sheet tray provided in the copying apparatus according to the embodiment.

FIG. 9 is a perspective view of a main part showing a tab sheet feeding mechanism.

FIG. 10 is a schematic configuration diagram showing a structure of a fixing / reversing unit of the copying apparatus according to the embodiment.

FIG. 11 is a perspective view showing a state in which a tab sheet is inserted in the middle of a bundle of documents.

FIG. 12 is a front view of a display unit showing a display state of a tab sheet designation screen.

FIG. 13 is a front view of a display unit showing a display state of tab sheet number input.

FIG. 14 is a flowchart showing a processing procedure in a tab number check routine.

FIG. 15 is a timing chart showing a processing timing in tab sheet ejection.

FIG. 16 is a front view of the display section showing a display state of tab sheet supply.

FIG. 17 is a timing chart showing processing timing at the time of tab copy.

FIG. 18 is a front view of the display unit showing a display state of tab length input.

FIG. 19 is a flowchart showing a processing procedure in a timing determination routine at the time of moving an image.

[Explanation of symbols]

 10 Document Bundle 11 Tab Paper 11a, 11b, 11c Tab Part 107 Photosensitive Drum 108 Charging Charger 109 Developer 110 Transfer Charger 111 Separation Charger 112 Separation Claw 113 Static Elimination Charger 114 Cleaner 115 Fixing Device 117, 118, 119 Paper Tray 120 Both Sides Tray 121 Conveying path 122 Conveying belt 123 Double-sided switching claw 124 Double-sided approaching path 200 Operation section (unit) 207 Numeric keypad 208 Display section 210 Touch panel 211 A / D converter 212 Controller 220 Host copying machine (Host PPC) 221 VRAM 222 CRT controller 223 CRT 224 CPU 225 CGROM 226 LED driver 227 Keyboard 228 Address decoder 229 Address latch 230 ROM 23 1 Non-volatile ROM 232 System Reset 235 Optical Transceiver 267 Tab Key 276 Enter Key 401 Tab Paper Tray 402 Back Fence 403 Paper Feed Roller 404 Calling Roller A Copy Machine Main Body A-1 Scanner Unit A-2 Image Forming Unit B Circular Document Feeder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoko Fukui 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd.

Claims (2)

[Claims] 1. A circulating automatic document feeder, which feeds, one by one, a page order from a document stack placed on a document placing unit to an exposure position, and returns it to the document placing unit again after the exposure is completed, A first paper feed tray for setting recording sheets, a second paper feed tray for setting tab sheets, and a paper feed unit for feeding the papers set in the first and second paper feed trays, An image forming means for forming a copy image of an exposed original, and a copying apparatus having a mode for producing a copy of an original portion divided into tab sheets from the original bundle, wherein one of the originals in the original bundle is Designation means for designating whether to replace the original with tab paper, input means for inputting the length of the tab portion of the tab paper, control means for setting the image forming position according to the input length of the tab portion, A copying machine comprising: 2. An image movement amount setting unit capable of setting an amount of movement of the image with respect to the recording sheet when the image is formed by the image forming unit, and the image movement amount setting unit is a tab sheet copy and 2. The copying apparatus according to claim 1, wherein the copying amount of the image is changeable between the copying of plain paper and the copying of plain paper.