JP2001302022A - Tab paper feeding device and image forming device therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent tabs from being in a wrong order even if tab paper jammed in a feeding path for feeding the tab paper is removed. SOLUTION: In this tab paper feeding device, the tab paper is discharged to a predetermined position through the feeding path 195 in the tab order from tab paper stacking means 122, 124, 126, 128 and 130, wherein the tab paper is stacked in the tab order. The tab paper feeding device is provided with a removing tab paper determination means for determining the tab paper from the jammed tab paper to the tab paper before the tab paper corresponding to the jammed tab paper as to be removed when the tab paper is jammed, and a removing tab paper displaying means 151 for displaying outside the tab paper to be removed determined by the removing tab paper determination means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tab paper transport device for transporting tab paper, and a copying machine provided with the tab paper transport device.
The present invention relates to an image forming apparatus such as a printer, a facsimile, and a composite device thereof.

[0002]

2. Description of the Related Art Conventionally, a tab sheet transport device discharges tab sheets from a tab package in which tab sheets are stacked in the order of tabs, via a transport path in the tab order. As shown in FIG. 6, the tab sheets T1, T2, T3, and T4 are arranged in the order of the tabs Tb, and are accommodated in a package of a tab sheet transport device, for example, as shown in FIG. It has become so. FIG.
As shown in the figure, the number of tabs Tb of the tab paper T is various,
There are two to thirteen standard.

When tab paper is used by being inserted between a plurality of sheets, the tab paper is often interposed between the sheets in the order of the tabs in order to make the tabs easy to see.

[0004] Such a tab sheet conveying device for supplying tab sheets is incorporated in, for example, a copying machine as an example of an image forming apparatus, and supplies tab sheets between sheets on which images are formed. I have.

[0005]

However, when a tab sheet is jammed in a transport path for transporting the tab sheet (so-called jam occurs) and the tab sheet is removed, the tab sheet transport device removes the tab sheet. However, there is a problem that the arrangement order of the tabs that skips over the tab paper is changed.

(Purpose) The present invention is directed to a tab sheet conveying device for preventing the tab arrangement order from being out of order even if a tab sheet jammed in a conveying path for conveying the tab sheet is provided. It is an object to provide an image forming apparatus provided with the apparatus.

[0007]

According to the present invention, a tab sheet transporter for discharging a tab sheet to a predetermined position via a transport path in the tab order from the tab sheet loading means in which the tab sheets are loaded in the tab order. In order to achieve the above object, when the tab paper is jammed in the transport path, the apparatus should remove the tab paper from the jammed tab paper to the tab paper in front of the tab paper corresponding to the jammed tab paper. There is provided a removal tab sheet determining means for determining a tab sheet, and a removal tab sheet display means for displaying the tab sheet to be removed determined by the removal tab sheet determining means to the outside.

According to the present invention, there is provided a tab sheet conveying apparatus for discharging tab sheets from a tab sheet stacking means on which tab sheets are stacked in the order of tabs to a predetermined position via a conveying path in the tab order. In order to achieve this, when the tab paper is jammed in the conveyance path, the removal that determines the tab paper to be removed from the jammed tab paper to the tab paper in front of the tab paper corresponding to the jammed tab paper is determined. A tab sheet determining unit; and a removing tab sheet discharging unit that discharges the tab sheet to be removed determined by the removing tab sheet determining unit to a position different from the predetermined position.

The removed tab sheet determining means includes a tab number input section for externally inputting the number of tabs, and a tab sheet supply detecting section for detecting tab sheets supplied to the transport path from the tab sheet stacking means. A tab sheet discharge detection unit for detecting tab sheets discharged from the transport path, a tab number input from the tab number input unit, a detection operation of the tab sheet supply detection unit, and a tab sheet discharge detection unit A transport tab paper determining unit that calculates the number of tab papers and determines the tab position of the tab paper present on the transport path by the detection operation of (1).

[0010] The tab paper loading means can selectively load the tab paper and sheets, and the tab paper transport device includes:
The apparatus further includes a stacked sheet determination unit that determines the tab sheet and the sheet.

The tab sheet transport device includes a sheet stacking means on which sheets are stacked, and a sheet provided at the predetermined position for binding the sheet and the tab sheet in a state where the sheet and the tab sheet are overlapped. A binding device.

[0012] The image forming apparatus includes a sheet stacking unit on which sheets are stacked, the tab sheet conveying device according to any one of the above, the sheet supplied from the sheet stacking unit, and the tab sheet conveying device. And image forming means for forming an image on at least the sheet out of the conveyed tab paper.

[0013] The image forming apparatus includes a sheet stacking unit on which sheets are stacked, the tab sheet conveying device according to any one of the above, and the sheet supplied from the sheet stacking unit and conveyed by the tab sheet conveying device. Image forming means for forming an image on the tab sheet to be removed, and the image forming means for stopping image formation on the tab sheet to be removed determined by the removal tab sheet determining means of the tab sheet transport device. A blank sheet instruction unit for issuing a command.

(Operation) The tab sheet conveying device supplies tab sheets from the tab sheet stacking means to the conveying path and discharges them to a predetermined position. When a tab sheet is jammed in the transport path, the removal tab sheet determining unit determines a tab sheet to be removed from the jammed tab sheet to the tab sheet in front of the tab sheet corresponding to the jammed tab sheet. The removed tab sheet display means displays the tab sheet to be removed determined by the removed tab sheet determining means outside. The user looks at the displayed tab sheet to be removed by the removal tab sheet display means and removes the tab sheet. Thus, the tab sheet conveying device can convey the tab sheet in the tab position of the tab sheet.

The tab sheet conveying device supplies tab sheets from a tab sheet stacking means to a conveying path and discharges the tab sheets to a predetermined position. When a tab sheet is jammed in the transport path, the removal tab sheet determining unit determines a tab sheet to be removed from the jammed tab sheet to the tab sheet in front of the tab sheet corresponding to the jammed tab sheet. The removal tab paper discharge means discharges the tab paper to be removed determined by the removal tab paper determination means to a position different from a predetermined position. Thus, the tab sheet conveying device can convey the tab sheet in the tab position of the tab sheet.

The removal tab sheet determining means of the tab sheet transport device includes:
The tab sheet is fed by the detecting operation of the tab sheet supply detecting unit that detects the tab sheet supplied from the tab sheet stacking unit to the conveying path and the detecting operation of the tab sheet discharging detecting unit that detects the tab sheet discharged from the conveying path. The number of tab sheets is counted, and the number of tab sheets input from the outside into the tab number input unit is compared with each other to determine the tab position of the tab sheet present on the transport path. Thus, when tab paper is jammed in the transport path, the removal tab paper determining means determines the position of the tab of the jammed tab paper.

When the tab sheet stacking means is capable of selectively stacking tab sheets and sheets, a stack sheet discriminating section for discriminating between tab sheets and sheets is provided, and the tab sheets and sheets are erroneously identified. Do not transport.

The sheet binding means binds the sheet and the tab sheet with the tab sheet interposed between the sheets.

The image forming apparatus forms an image on at least a sheet of the sheet supplied from the sheet stacking unit and the tab sheet conveyed by the tab sheet conveying unit by the image forming unit.

The image forming apparatus forms an image on the sheet supplied from the sheet stacking unit and the tab sheet conveyed by the tab sheet conveying unit by the image forming unit. When the tab sheet is jammed, the blank sheet instruction unit issues a command to the image forming unit to stop image formation on the tab sheet to be removed by the removal tab sheet determining unit. As a result, the sheet conveying apparatus discharges the tab sheet to be removed in a blank state, and urges the user to remove the tab sheet.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tab sheet conveying device according to an embodiment of the present invention and an image forming apparatus provided with the tab sheet conveying device in a main body will be described with reference to the drawings.

In FIG. 1, the original platen glass 101 is configured such that the originals fed from the automatic original feeder 160 are sequentially placed at predetermined positions. Original illumination lamp 1
Reference numeral 02 denotes a fluorescent lamp which exposes a document placed on the document table glass 101. Scanning mirror 1
Numerals 03, 104 and 105 are housed in an optical scanning unit (not shown), and reciprocate the reflected light from the original.
It leads to the CD unit 106. The CCD unit 106 includes an imaging lens 107 that forms reflected light from a document on the CCD, an image sensor 108 including, for example, a CCD, a CCD driver 109 that drives the image sensor 108, and the like. The image signal output from the image sensor 108 is, for example, converted into 8-bit digital data and then input to the controller 150.

The photosensitive drum 110 is discharged by a pre-exposure lamp 112 in preparation for image formation. The primary charger 113 charges the photosensitive drum 110 uniformly. Laser unit 117
Is formed of, for example, a semiconductor laser or the like, and exposes the photosensitive drum 110 based on image data processed by a controller unit 150 that performs image processing and control of the entire apparatus to form an electrostatic latent image. Has become.

The developing device 118 has a black developer (toner).
Is housed. The buffer unit 119 also stores toner, and toner is supplied from the detachable toner storage container 120. Buffer unit 11
The toner supplied to the developing device 9 is supplied to the developing device 118 according to the amount of toner in the developing device 118. The pre-transfer charger 121 applies a high voltage before transferring the toner image developed on the photosensitive drum 110 to the sheet P.

The sheet supply units 122, 124, 12
6, 128, 130 sheet supply rollers 123, 12
The sheet supply roller corresponding to the sheet supply unit loaded with the sheet P and the sheet supply roller corresponding to the sheet supply unit loaded with the tab sheet T selected by the CPU 201 among 5, 127, 129 and 131. ,
A tab sheet T is fed into the apparatus every other plurality of sheets. The sheet or tab sheet is temporarily stopped at the position where the registration roller 132 is disposed, and the photosensitive drum 110 is stopped.
The timing for starting writing with the image formed on the printer is taken and re-feeding is performed. The transfer charger 133 transfers the toner image developed on the photosensitive drum 110 to a fed sheet or tab paper. The separation charger 134 separates the sheet or tab sheet after the transfer operation from the photosensitive drum 110.
The separation claw 170 physically separates the sheet or the tab sheet when the separation of the sheet or the tab sheet by the separation charger 134 is not possible.

The toner remaining on the photosensitive drum 110 without being transferred is collected by a cleaner 111. The conveying belt 135 conveys the sheet or tab sheet after the transfer process to the fixing device 136. The fixing device 136 fixes the toner image to a sheet or tab paper by, for example, heat. Flapper 1
37 guides the sheet or tab sheet after the fixing process to either the staple sorter 145 or the reversing path 139. The sheets discharged to the staple sorter 145 and the tab sheets inserted every other sheet are sorted into bins, and stapled by a staple unit (sheet binding device) 146 according to an instruction from the controller unit 150. ing.

The reversing unit 138 is used when performing face-down discharge and double-sided copying. When performing face-down discharge, a sheet or tab sheet is reversed by the reversing unit 139 and then discharged. . When performing double-sided copying, a sheet or tab sheet is conveyed from the reverse path 139 to the double-sided path 144. Sheet supply roller 140,
Reference numerals 141 and 142 denote sheet supply rollers which convey the re-transfer sheet on the double-sided path 144 to the re-feeding roller 143. The retransfer paper is 140, 141, 14
The sheet is transported by the sheet supply rollers 2143 at a timing with the transfer sheet fed from the sheet supply unit, and is again transported to the position where the registration roller 132 is provided. The controller unit 150 includes a microcomputer, an image forming processing unit, and the like, which will be described later. According to an instruction from the operation panel 151, the controller unit 150 instructs an image forming operation and a jam processing when a tab sheet jam occurs. The temperature / humidity sensor 180 detects the temperature and humidity in the copying machine main body.

FIG. 2 shows the controller 1 of the copying machine 100.
It is a block diagram of 50.

The CPU 201 has a read-only memory 203 (R) storing a control procedure (control program) of the copying machine.
OM), and controls the entire copying machine 100. The address decoder and the data bus of the CPU 201 are connected to each load via a bus driver circuit and an address decoder circuit 202. Also, random access memory (RAM)
Reference numeral 204 denotes a main storage device used as storage of input data, a work storage area, and the like. The image data hard disk 205 stores image-processed data input from the CCD unit 106 and image data from a network or the like.

An I / O interface 206 is an operation panel 151 for inputting a key by an operator and displaying the state of the apparatus using liquid crystal and LEDs, and a motor for driving a paper feed system, a transport system, and an optical system. 207, clutches 208, solenoids 209, and paper detection sensors 210 for detecting the conveyed sheet and tab sheet.

The developing device 118 is provided with a residual toner detection sensor 211 for detecting the amount of toner in the developing device. The output signal of the residual toner detection sensor 211 is input to the I / O port 206. Further, signals of switches 212 for detecting the home position of each load, the open / closed state of the door, and the like are also input to the I / O port 206. The high-pressure unit 213 includes the CPU 201
, The primary charger 113 and the developing device 11
8. A high voltage is applied to the pre-transfer charger 121, the transfer charger 133, and the separation charger 134.

The output from the temperature / humidity sensor 180 is directly connected to the analog port of the CPU 201,
/ D conversion and arithmetic operation calculation with a digital value. From the temperature / humidity sensor 180, a voltage value representing a temperature and a voltage value representing a humidity are input to an analog port of the CPU 201.

The image forming processing unit 215 receives an image signal output from the CCD unit 106, performs image processing described below, and performs laser processing on the laser unit 117 in accordance with the image data.
Is output. The laser beam output from the laser unit 117 is
The light emission state is detected by a beam detection sensor 214 which is a light receiving sensor in a non-image area, and the output signal is output to an I / O port 206.
Is input to

FIG. 3 is a block diagram of the image forming processing section 215 in the controller section 150 in the copying machine of the present invention.

The image signal converted into an electric signal by the CCD 106 is first corrected for variation between pixels by the shading circuit 301, and then is changed by the scaling circuit 302.
In, data thinning processing is performed during reduced copying, and data interpolation is performed during enlarged copying. Next, the image signal is subjected to, for example, 5 ×
The second derivative is performed in the window 5 to emphasize the edges of the image. Since the image data is luminance data, data conversion is performed by a table search using the γ conversion circuit 304 in order to convert the image data into density data to be output to the printer.
The image data converted to the density data is output to the binarization processing unit 3
05 is input. Here, multi-value data is converted into binary data by, for example, the ED method. The binary-converted image data is input to the synthesis circuit 306. Synthesis circuit 306
Then, the input image data and the image data in the image memory 310 constituted by, for example, a hard disk are selectively output or ORed and output. The read / write control for the image memory 310 is performed by the memory control unit 309. When the image is rotated, the read address of the image data in the memory is controlled.
These image data are input to a PWM circuit 311 for conversion into a signal of the light emission intensity of the laser, and output to the laser unit 117 a pulse width according to the density of the image.

Next, the image forming process will be described with reference to FIG.

The photosensitive drum 110 is in the direction of the arrow (clockwise).
To rotate.

The residual charge on the surface of the photosensitive drum 110 is
After being removed in the pre-exposure area, it is charged to about 700 V to about 800 V by primary charging. Thereafter, exposure of the image is performed, and a rectangular wave of about 1500 Vpp and a DC bias of 0 to about 500 V are applied by the developing unit 118, so that a toner image is formed on the latent image on the surface of the photosensitive drum 110. Next, a rectangular wave of about 12,500 Vpp and a DC constant current of 0 to about 500 μA are applied by the pre-transfer charger 121, and the toner image on the photosensitive drum 111 is easily transferred. The transfer charger 133 has a voltage of about -5300V to about -83.
A negative potential of 00 V is applied to transfer the toner image to a sheet or tab paper.

The separation charger 134 applies a rectangular wave of 14000 Vpp and a DC constant current of 0 to about 500 μA to separate a sheet or tab sheet from the photosensitive drum 110.

The sheet or tab sheet on which the toner image has been transferred and separated from the drum is heated and pressed and fixed by a fixing device 136. The untransferred toner on the photosensitive drum 110 is cleaned by the cleaner 111 and the process shifts to the pre-exposure process again.

Next, the operation of handling the tab sheet will be described.

It is assumed that tab sheets T1, T2, T3 and T4 are stored in the sheet supply unit 128 shown in FIG. 1 as shown in FIG. The tab Tb of the tab paper has a width of (１ ／) inch and protrudes from a sheet of a standard size.
Whether or not the sheet is a tab sheet is determined by abutting the trailing end regulating plate 190 against the tab Tb as shown in FIG. Is detected. The detection signal of the tab sheet detection sensor 191 is sent to the CPU 201. The fact that the tab paper is stored in the sheet supply unit 128 is determined by the user by the CPU 2 from the tab paper designation unit 151b of the operation panel 151.
01 may be reported.

When the CPU 201 is notified that the tab sheet is stored in the sheet supply unit 128, the CP
U201 is a warning display section (removal tab paper display means) 151.
An instruction to enter the number of tabs in c is displayed. The user sees the instruction display and inputs the number of tabs into the tab number input section 151a. Note that the number of tabs is
28 is detected by a sensor (not shown) provided at
You may make it input into U201. In the present embodiment, the number of tabs is, for example, four.

In the image forming operation, when the tab sheet is used as a chapter or a partition sheet, the tab sheet is supplied between the supply of the standard size sheets. Also, the sorter 145 of FIG.
When the bookbinding operation is performed, tab sheets may be supplied as sheets of separation from the insertion port of the sorter 145 to the sheets discharged from the copying machine main body. However, since the sequence operation is the same, the supply from the copying machine main body is performed. The paper will be described.

When tab paper is supplied between sheets of a standard size and a jam occurs downstream of the conveyance path in a state where the tab paper is present in the conveyance path, the jam detection sensor 194 detects the jam and detects a jam occurrence location. The tab sheet on the upstream side remains in the copying machine main body and is removed by the user.
Then, the tab sheet on the upstream side of the jam occurrence position is different from the tab position of the tab sheet removed at the time of jam processing, and the chapter of the chapter stand is shifted.

For example, four types of tab sheets T1, T2, T
3 and T4, if the second tab sheet T2 is jammed and the third tab sheet T3 exists in the transport path 195 described later on the upstream side of the second tab sheet, Are removed by the user, and the order of the tab sheets is as follows: T1, T4, T1, T2, T3, T
4 ...

In this case, the first tab sheet T1 is discharged to the staple sorter 145. This is because the first tab sheet T1 is detected by the tab sheet discharge detection sensor 193 provided near the discharge roller pair 171 of the copying machine 100 main body. , The user inputs a tab number input unit 151a of the operation panel 151 to the CPU 201.
From the number of tabs entered in advance,
U201 makes the determination. Also, the fourth and subsequent tab sheets T4,
T1, T2, T3, and T4 are the sheet supply units 128
However, this is based on the detection operation of the tab paper supply detection sensor 192 and the number of tabs previously input to the CPU 201 from the tab number input unit 151a of the operation panel 151 by the user. to decide.

In such a case, the tab paper... T1, T
4, T1, T2, T3, T4 ... (T4, T1)
The tab sheets are discharged by a recovery operation, and the order of the tab sheets is changed to T1, T2, T3, T4,.
And can be in normal order. Therefore, CPU
(Conveyance tab sheet discrimination unit) 201 controls each unit so that the tab sheet of (T4, T1) is automatically ejected. The tab paper to be automatically discharged is moved to a paper discharge unit different from a part for performing a finishing process such as bookbinding, for example, a staple sorter 145 is raised by an elevating motor 173 and is moved to a lowermost bin (a position different from a predetermined position) 172. Is discharged. The discharge roller pair 171 and the elevating motor 173 constitute a removal tab paper discharge unit.

If there is no paper discharge section separate from the part to be finished, automatic paper discharge cannot be performed.
U201 indicates "Please remove the 4th tab and 1st tab paper" during the recovery operation, or "Discard two tab papers in the sheet supply unit from the top."
Is displayed on the warning display section 151c to allow the user to remove it.

When the tab number input section 151a is not provided, the CPU 201 determines that "jam has occurred in the machine. It is necessary to adjust the tab order. Sheets until the same tab sheet as the tab sheet removed in the machine appear. Please remove the tab paper from the supply unit. "
51c.

Alternatively, a CPU (blank sheet instruction unit) 201
Is to prevent the photosensitive drum 1 from forming an image on the tab sheet to be removed and the sheet between this tab sheet and the next tab sheet.
10 or the like may be controlled. In this way, the discharged tab sheet is blank, and the user can determine that the tab sheet is to be removed. Further, since no image is formed on the sheet related to the tab sheet, the tab sheet to be removed and the sheet related to the tab sheet can be removed together, so that the processing is facilitated and the sheet is not wasted.

In the above configuration, the removal tab paper determining means is provided with a tab number input section 151a for inputting the number of tabs from outside.
And sheet supply units (tab sheet loading means, sheet loading means) 122, 124, 126, 128, 130
Transport path 1 including sheet re-supply roller 143, registration roller 132, transport belt 135, flapper 137, and the like
A tab sheet supply detection sensor (tab sheet supply detection section) 192 for detecting the tab sheet supplied to the tab 95, and a tab sheet discharge detection sensor (tab sheet discharge detection section) 193 for detecting the tab sheet discharged from the transport path 195. The number of tab sheets is calculated based on the number of tabs input from the tab number input unit 151a, the detection operation of the tab paper supply detection sensor 192, and the detection operation of the tab paper discharge detection sensor 193, and the number of tab papers is present on the transport path. CPU to determine the tab position of the tab paper to be transferred (conveyance tab paper determination unit)
201 and the like.

[0053]

According to the present invention, when a tab sheet is jammed in the conveying path, the removal tab sheet judging means sets the tab sheet from the jammed tab sheet to the tab sheet in front of the tab sheet corresponding to the jammed tab sheet. The tab sheet to be removed is determined, and the removed tab sheet display means displays the tab sheet to be removed determined by the removed tab sheet determination means to the outside. By the tab sheet display means, the displayed tab sheet to be removed can be viewed and the tab sheet can be removed, so that even if a tab sheet jam occurs,
The tab sheets can be transported in the tab position of the tab sheets.

In the tab paper transport device of the present invention, when tab paper is jammed in the transport path, the removal tab paper determining means determines the tabs from the jammed tab paper to the tab paper in front of the tab paper corresponding to the jammed tab paper. The tab sheet from which the paper is to be removed is determined, and the removal tab paper discharge means can discharge the tab paper to be removed determined by the removal tab paper determination means to a position different from a predetermined position, whereby the tab sheet can be removed. The tab sheets can be transported in the order of the tab positions of the sheets, and the tab sheets discharged in the order of the tab positions and the tab sheets to be removed can be prevented from being confused, so that the order of the tab positions of the tab sheets can be secured. .

The removed tab sheet determining means detects the tab sheet supplied from the tab sheet loading means to the transport path by the tab sheet supply detecting section, and the tab sheet discharge detecting the tab sheet discharged from the transport path. According to the detection operation of the detection unit, the number of tab sheets that have passed is counted, and compared with the number of tabs input from the outside to the tab number input unit, the tab position of the tab paper existing in the transport path is determined. In this case, when tab paper is jammed in the transport path, the removal tab paper determining means can accurately determine the position of the tab of the jammed tab paper.

If the tab paper stacking means can selectively stack tab paper and sheets, the tab paper stacking means can be used effectively.

According to the image forming apparatus of the present invention, even after the jammed tab paper is removed, the order of the tab positions is not changed.
Since the tab sheet conveying device for conveying the tab sheet is provided, it is possible to provide a bundle of sheets and tab sheets that can accurately determine the discrimination between sheets.

In the image forming apparatus of the present invention,
Since the tab paper to be removed can be ejected as a blank sheet, the user can remove the blank tab sheet, and the sheet and the tab sheet in which the tab positions of the tab sheet are arranged in the same order can be used. Can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a copying machine as an example of an image forming apparatus provided with a tab sheet conveying device of the present invention in a main body.

FIG. 2 is a control block diagram of the copying machine of the present invention.

FIG. 3 is a block diagram of an image forming processing unit.

FIG. 4 is an explanatory diagram of an image forming operation.

FIG. 5 is a diagram illustrating a positional relationship between a tab sheet stored in a sheet supply unit and a rear end regulating plate.

FIG. 6 is a view showing a state where the packing of the tab paper of the tab is released.

FIG. 7 is a perspective view of a tab sheet for indicating the type of the tab sheet. (A) is a front view of two tab sheets. (B) is a front view of three tab sheets. (C) It is a front view of tab paper with four tabs.

[Explanation of symbols]

P sheet T tab paper Tb tab 100 copier (image forming apparatus) 110 photosensitive drum (image forming means) 122, 124, 126, 128, 130 sheet supply unit (tab paper loading means, sheet loading means) 123, 125, 127 , 129, 131 Sheet supply roller 133 Transfer charger 134 Separation charger 135 Conveyor belt 136 Fixer 139 Reverse path 140, 141, 142 Sheet supply roller 143 Sheet resupply roller 144 Double-sided path 145 Staple sorter 146 Staple section (sheet binding device) 150 controller section 151 operation panel (removed tab paper determining means, removed tab paper displaying means, removed tab paper displaying means) 151a tab number input section (removed tab paper determining means) 151b tab paper specifying section 151c warning displaying section (removed tab) Paper display means) 70 Separating Claw 171 Ejection Roller Pair (Removal Tab Paper Discharge Means) 172 Lowermost Bin 173 Elevating Motor (Removal Tab Paper Discharge Means) 190 Rear End Control Plate 191 Tab Paper Detection Sensor (Loaded Sheet Discrimination Unit) 192 Tab Paper Supply Detection Sensor (tab paper supply detection unit, removal tab paper determination unit) 193 Tab paper discharge detection sensor (tab paper discharge detection unit, removal tab paper determination unit) 194 Jam detection sensor 195 transport path 201 CPU (transport tab paper determination unit, removal) Tab sheet determining unit, blank page instructing unit) 215 image forming processing unit

Continued on the front page F term (reference) 3F048 AA02 AA04 AA05 AB01 AB04 BA14 BB02 BC01 CA05 CB03 CC01 DC02 EA03 EA05 EA12 EB04 EB05 3F050 BC02 BE01 BE12 CE05 CE07 CE08 CF01 LA02 LA05 LA07 LA14 LB03 LB05 3F107 AA03 AC02 DA03 DA12 DA14 3F108 GA02 GA03 GA04 GA06 HA02 HA32 3F343 FA02 FA06 FB02 FB03 FB04 FC09 FC10 FC22 MA03 MA26 MA36 MB05 MB09 MC18 MC27

Claims (7)

[Claims] 1. A tab sheet transporting device which discharges the tab sheets to a predetermined position from a tab sheet loading means in which the tab sheets are stacked in the order of the tabs, via the transport path in the tab order, wherein the tab sheets are transported. Removing tab paper determining means for determining that tab papers from the jammed tab paper to the tab paper in front of the tab paper corresponding to the jammed tab paper should be removed when the paper jams in the path; And a removing tab sheet displaying means for externally displaying the tab sheet to be removed determined by the means. 2. A tab sheet transporting device which discharges the tab sheets to a predetermined position via a transport path in the tab order from a tab sheet loading means on which the tab sheets are loaded in the order of the tabs. Removing tab paper determining means for determining that tab paper to be removed after the jammed tab paper up to the tab paper in front of the tab paper corresponding to the jammed tab paper when the jammed tab paper is present; A tab sheet discharging device for discharging a tab sheet to be removed determined by the sheet determining device to a position different from the predetermined position. 3. The tab sheet input unit to which the number of tabs is externally input, and a tab sheet supply detection unit that detects a tab sheet supplied from the tab sheet loading unit to the transport path. A tab sheet ejection detection unit that detects tab sheets ejected from the transport path; a tab number input from the tab number input unit; a detection operation of the tab sheet supply detection unit; 2. A transport tab sheet determining unit that calculates the number of tab sheets and determines a tab position of the tab sheet existing on the transport path by a detection operation of the detecting unit. Or the tab sheet transport device according to 2. 4. The apparatus according to claim 1, wherein said tab sheet stacking means is capable of selectively stacking said tab sheets and sheets, and further comprising a stacked sheet discriminating section for discriminating said tab sheets and said sheets. 4. The tab sheet transport device according to 1, 2, or 3. 5. A sheet stacking means on which sheets are stacked, and a sheet binding device provided at the predetermined position and binding the sheet and the tab sheet in a state where the sheet and the tab sheet are overlapped. The tab sheet conveying device according to claim 1, further comprising: 6. A sheet stacking unit on which sheets are stacked, a tab sheet conveying device according to claim 1, a sheet fed from the sheet stacking unit, and the tab. An image forming apparatus, comprising: an image forming unit that forms an image on at least the sheet, out of the tab paper conveyed by the paper conveying device. 7. A sheet stacking means on which sheets are stacked, the tab sheet transport device according to any one of claims 1 to 5, the sheet supplied from the sheet stacking means, and the tab. Image forming means for forming an image on a tab sheet conveyed by a sheet conveying device; and stopping image formation on the tab sheet to be removed determined by the removal tab sheet determining means of the tab sheet conveying device. An image forming apparatus, comprising: a blank sheet instruction unit that issues a command to the image forming unit.