JP6813071B2 - Sheet processing device, image forming system - Google Patents

Description

The present invention relates to a sheet processing apparatus and an image forming system.

In recent years, an image forming apparatus used for outputting digitized information has become an indispensable device. Further, in order to fold the image-formed sheet on which the image is formed in the image forming apparatus, a folding processing apparatus connected to or built in the image forming apparatus is also an indispensable device.

Such a folding processing device usually performs a processing to be performed in the process of transporting the sheet, that is, a folding process (see, for example, Patent Document 1).

However, when the sheet transfer is stopped due to some factor such as a paper jam or a sensor abnormality, such a folding processing device may not be able to transfer the sheet by itself until the stopped factor is resolved. is there. In such a case, the user himself / herself removes the sheet stopped in the device, but it is not easy.

Therefore, among such folding processing devices, a folding processing device having a rotating knob for rotating the transport roller in conjunction with the rotation of the transport roller that conveys the sheet is already known. ing. According to such a folding processing device, the user can remove the stopped sheet to the outside of the device simply by rotating the rotary knob.

However, in a folding processing device, the rotation direction is usually different for each transfer roller, so that it is difficult for the user to grasp which transfer roller rotation knob should be rotated in which direction, and the sheet can be easily removed. Can not do it.

The present invention has been made to solve such a problem, and an object of the present invention is to easily remove a sheet stopped in a sheet processing apparatus.

In order to solve the above problems, one aspect of the present invention is to receive the first transport roller pair for transporting the sheets and the sheet transported by the first transport roller pair, and transport the received sheets in the forward and reverse directions. A rotatable second transfer roller pair, a first fold roller pair that forms a first crease on the sheet, and a rotary knob that manually rotates the second transfer roller pair and the first fold roller pair. with a one of the rollers of the second conveying roller pair, a common roller which is also the one of the rollers of the first pair of folding rollers, characterized in that prior to providing the Kikai rolling knob.

According to the present invention, the sheet stopped in the sheet processing apparatus can be easily removed.

It is a figure which shows the whole structure of the image forming apparatus which concerns on embodiment of this invention simplified. It is a figure which shows the whole structure of the image forming apparatus which concerns on embodiment of this invention simplified. It is a block diagram which shows typically the hardware composition of the image forming apparatus which concerns on embodiment of this invention. It is a block diagram which shows typically the functional structure of the image forming apparatus which concerns on embodiment of this invention. It is a figure which shows the mode when the folding processing unit which concerns on embodiment of this invention is in a through mode and a folding mode. It is sectional drawing which shows the folding processing unit in the folding processing operation from the main scanning direction in the image forming apparatus which concerns on embodiment of this invention. It is sectional drawing which shows the folding processing unit in the folding processing operation from the main scanning direction in the image forming apparatus which concerns on embodiment of this invention. It is sectional drawing which shows the folding processing unit in the folding processing operation from the main scanning direction in the image forming apparatus which concerns on embodiment of this invention. It is sectional drawing which shows the folding processing unit in the folding processing operation from the main scanning direction in the image forming apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the shape of the paper which was folded in three outside by the folding processing unit which concerns on embodiment of this invention. It is a figure which shows the procedure when the user removes the paper which stopped in the folding mode of the folding processing unit which concerns on embodiment of this invention. It is a figure which shows the procedure when the user removes the paper which stopped in the folding mode of the folding processing unit which concerns on embodiment of this invention. It is a figure which shows the procedure when the user removes the paper which stopped in the folding mode of the folding processing unit which concerns on embodiment of this invention. It is a figure which shows the procedure when the user removes the paper which stopped at the folding processing unit which concerns on embodiment of this invention in the through mode. It is a figure for demonstrating the phenomenon which occurs when the folding processing unit which concerns on embodiment of this invention stops the paper transfer while leaving a branch claw as it is in a through mode. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper 6 when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper 6 when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a flowchart for demonstrating the processing when the folding processing unit which concerns on embodiment of this invention stops the transfer of paper due to the occurrence of an abnormality. It is a figure which shows the procedure when the user removes the paper when the folding processing unit which concerns on embodiment of this invention stops the transport of the paper due to the occurrence of an abnormality in the folding mode. It is sectional drawing which shows the processing unit which concerns on embodiment of this invention from the main scanning direction. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention. It is a figure for demonstrating the method for the user to remove the paper when the paper transport is stopped in the folding processing unit which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, as an example of the sheet processing device, a folding processing unit for folding an image-formed sheet which is connected to or built in the image forming unit and has an image formed by the image forming unit will be described.

First, the overall configuration of the image forming apparatus 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a simplified view showing the overall configuration of the image forming apparatus 1 according to the present embodiment. As shown in FIG. 1, the image forming apparatus 1 according to the present embodiment is composed of an image forming unit 2, a folding processing unit 3, a post processing unit 4, and a scanner unit 5.

The image forming unit 2 generates CMYK (Cyan Magenta Yellow Key Plate) drawing information based on the input image data, and outputs an image forming output to the fed paper based on the generated drawing information. Execute. The folding processing unit 3 executes the folding processing and the additional folding processing on the image-formed paper conveyed from the image forming unit 2. The post-processing unit 4 executes post-processing such as bookbinding, staples, and punches on the folded paper conveyed from the folding processing unit 3.

The scanner unit 5 reads a document by a linear image sensor in which a plurality of photodiodes are arranged in a row and light receiving elements such as a CCD (Charge Coupled Device) and a CMOS (Complementary Metal Oxide Semiconductor) image sensor are arranged in parallel therewith. By doing so, the manuscript is digitized. In addition to this, the image forming apparatus 1 according to the present embodiment is provided with an imaging function, an image forming function, a communication function, and the like, so that it can be used as a printer, a facsimile, a scanner, a copying machine, and the like. ).

In addition, in FIG. 1, the configuration in which the image forming apparatus 1 includes the folding processing unit 3 in the body of the image forming unit 2 is shown, but as shown in FIG. 2, the image forming apparatus 1 is the folding processing unit 3. May be configured to be provided independently. FIG. 2 is a diagram showing a simplified overall configuration of the image forming apparatus 1 according to the present embodiment.

Next, the hardware configuration of the image forming apparatus 1 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram schematically showing a hardware configuration of the image forming apparatus 1 according to the present embodiment.

As shown in FIG. 3, the image forming apparatus 1 according to the present embodiment includes the same configuration as a general server, a PC (Personal Computer), or the like. That is, in the image forming apparatus 1 according to the present embodiment, the CPU (Central Processing Unit) 10, the RAM (Random Access Memory) 20, the ROM (Read Only Memory) 30, the HDD (Hard Disk Drive) 40, and the I / F 50 are bused. It is connected via 90. Further, a display unit 60, an operation unit 70, and a dedicated device 80 are connected to the I / F 50.

The CPU 10 is a calculation means and controls the operation of the entire image forming apparatus 1. The RAM 20 is a volatile storage medium capable of reading and writing information at high speed, and is used as a work area when the CPU 10 processes information. The ROM 30 is a read-only non-volatile storage medium, and stores programs such as firmware. The HDD 40 is a non-volatile storage medium capable of reading and writing information, and stores an OS (Operating System), various control programs, application programs, and the like.

The I / F 50 connects and controls the bus 90 with various hardware, networks, and the like. The display unit 60 is a visual user interface for the user to confirm the state of the image forming apparatus 1, and is realized by a display device such as an LCD (Liquid Crystal Display). The operation unit 70 is a user interface such as a keyboard and a mouse for a user to input information to the image forming apparatus 1.

The dedicated device 80 is hardware for realizing dedicated functions in the image forming unit 2, the folding processing unit 3, the post-processing unit 4, and the scanner unit 5, and the image forming unit 2 outputs an image forming output on paper. It is a plotter device that executes.

Further, the folding processing unit 3 is a conveying mechanism for conveying the paper, a folding processing mechanism for folding the conveyed paper, and an additional folding processing mechanism for increasing the creases formed in the paper. The configuration of the additional folding processing mechanism included in the folding processing unit 3 is one of the gist of the present embodiment.

Further, the post-processing unit 4 is a post-processing mechanism that performs post-processing on the paper conveyed from the image forming unit 2 or the folding processing unit 3. Further, the scanner unit 5 is a document reading mechanism for optically reading a document and an automatic transport mechanism for automatically transporting paper.

In such a hardware configuration, a program stored in a storage medium such as a ROM 30 or HDD 40 or an optical disk (not shown) is read into the RAM 20, and the CPU 10 performs an operation according to the program loaded in the RAM 20 to cause a software control unit. Is configured. By combining the software control unit configured in this way with the hardware, a functional block that realizes the function of the image forming apparatus 1 according to the present embodiment is configured.

Next, the functional configuration of the image forming apparatus 1 according to the present embodiment will be described with reference to FIG. FIG. 4 is a block diagram schematically showing a functional configuration of the image forming apparatus 1 according to the present embodiment. In FIG. 4, the electrical connection is indicated by a solid arrow, and the flow of the paper or document bundle is indicated by a broken line arrow.

As shown in FIG. 4, the image forming apparatus 1 according to the present embodiment includes a controller 100, a print engine 200, a paper feed table 201, a print output tray 202, a folding processing engine 300, a post-processing engine 400, and post-processing discharge. It has a paper tray 401, a scanner engine 500, a document stand 501, an ADF (Auto Document Feeder: automatic document transfer device) 502, a document output tray 503, a display panel 600, and a network I / F 700. Further, the controller 100 includes a main control unit 101, an engine control unit 102, an input / output control unit 103, an image processing unit 104, and an operation display control unit 105.

The print engine 200 is an image forming unit provided in the image forming unit 2, and draws an image by executing an image forming output on the paper conveyed from the paper feed table 201. As a specific embodiment of the print engine 200, it is possible to use an image forming mechanism by an inkjet method, an image forming mechanism by an electrophotographic method, or the like.

The image-formed paper on which the image is drawn by the print engine 200 is conveyed to the folding processing unit 3 or discharged to the printing output tray 202. The print engine 200 is realized by the dedicated device 80 shown in FIG. The paper feed table 201 feeds paper to the print engine 200, which is an image forming unit.

When the folding processing unit 3 is built in the image forming unit 2, the folding processing unit 3 is arranged above the print engine 200 as shown in FIG. When the folding processing unit 3 is connected to the image forming unit 2 and configured, the folding processing unit 3 is arranged and configured in the horizontal direction of the image forming unit 2 as shown in FIG.

The folding processing engine 300 is provided in the folding processing unit 3 and performs the folding processing and the additional folding processing on the image-formed paper conveyed from the image forming unit 2. The folded paper that has been folded by the folding engine 300 is conveyed to the post-processing unit 4. The folding processing engine 300 is realized by the dedicated device 80 shown in FIG.

The post-processing engine 400 is provided in the post-processing unit 4, and performs post-processing such as stapling, punching, and bookbinding processing on the paper conveyed from the folding processing engine 300. The paper that has been post-processed by the post-processing engine 400 is discharged to the post-processing output tray 401. The post-processing engine 400 is realized by the dedicated device 80 shown in FIG.

The scanner engine 500 is a document scanning unit provided in the scanner unit 5 and including a photoelectric conversion element that converts optical information into an electric signal. The scanner engine 500 is a document that has been automatically conveyed from the platen 501 by the ADF502, or a platen glass. Image information is generated by optically scanning and scanning the set document.

The originals automatically conveyed from the platen 501 by the ADF 502 and read by the scanner engine 500 are ejected to the original paper ejection tray 503. The scanner engine 500 is realized by the dedicated device 80 shown in FIG. The ADF502 is provided in the scanner unit 5 and automatically conveys the document set on the platen 501 to the scanner engine 500. This ADF502 is realized by the dedicated device 80 shown in FIG.

The display panel 600 is an output interface that visually displays the state of the image forming apparatus 1, and is an input when the user directly operates the image forming apparatus 1 as a touch panel or inputs information to the image forming apparatus 1. It is also an interface. That is, the display panel 600 includes a function of displaying an image for receiving an operation by the user. The display panel 600 is realized by the display unit 60 and the operation unit 70 shown in FIG.

The network I / F700 is an interface for the image forming apparatus 1 to communicate with other devices such as an administrator terminal and a PC (Personal Computer) via the network, and is an interface for the image forming apparatus 1 to communicate with other devices such as an administrator terminal and a PC (Personal Computer). ) Interface, Bluetooth®, Wi-Fi (Wireless Fidelity)®, Felica® and other interfaces are used. As described above, the image forming apparatus 1 according to the present embodiment receives image data of a print request and various control commands such as a print request from a terminal connected via the network I / F 900. The network I / F 700 is realized by the I / F 50 shown in FIG.

The controller 100 is composed of a combination of software and hardware. Specifically, a control program such as firmware stored in a non-volatile storage medium such as ROM 30 or HDD 40 is loaded into RAM 20, and a software control unit and an integrated circuit are configured by the CPU 10 performing calculations according to those programs. The controller 100 is configured by such hardware. The controller 100 functions as a control unit that controls the entire image forming apparatus 1.

The main control unit 101 plays a role of controlling each unit included in the controller 100, and gives a command to each unit of the controller 100. Further, the main control unit 101 controls the input / output control unit 103 and accesses other devices via the network I / F 700 and the network.

The engine control unit 102 controls or drives a drive unit such as a print engine 200, a folding processing engine 300, a post-processing engine 400, and a scanner engine 500. The input / output control unit 103 inputs signals and commands input via the network I / F 190 and the network to the main control unit 101.

The image processing unit 104 outputs drawing information based on image information described by PDL (Page Description Language) or the like, for example, document data or image data included in the input print job, under the control of the main control unit 101. Generate as information. This drawing information is information such as CMYK bitmap data, and is information for drawing an image to be formed by the print engine 200, which is an image forming unit, in an image forming operation.

In addition, the image processing unit 104 processes the imaging data input from the scanner engine 500 to generate image data. This image data is information stored in the image forming apparatus 1 as a result of the scanner operation or transmitted to other devices via the network I / F700 and the network. Note that the image forming apparatus 1 according to the present embodiment can directly input drawing information instead of the image information and execute the image forming output based on the directly input drawing information.

The operation display control unit 105 displays information on the display panel 600 or notifies the main control unit 101 of the information input via the display panel 600.

Next, the modes that the folding processing unit 3 according to the present embodiment can take will be described with reference to FIGS. 5A and 5B. 5A and 5B are diagrams showing modes when the folding processing unit 3 according to the present embodiment is in the through mode and the folding mode, respectively.

As shown in FIG. 5A, when the folding processing unit 3 according to the present embodiment is in the through mode, the branch claw 320 is in a closed state with respect to the first folding processing roller pair 340, that is, image formation. The form is such that the paper conveyed from the unit 2 is guided to the first forward / reverse rotating roller pair 330.

On the other hand, as shown in FIG. 5B, when the folding processing unit 3 according to the present embodiment is in the folding mode, the branch claw 320 is in a state of being open with respect to the first folding processing roller pair 340, that is, The form is such that the paper conveyed from the image forming unit 2 is guided to the first folding processing roller pair 340. That is, in the present embodiment, the branch claw 320 functions as the first guide unit, and the engine control unit 102 functions as the first guide control unit.

As a normal state, the folding processing unit 3 according to the present embodiment is in a state in which the branch claw 320 is bound to the first folding processing roller pair 340 as shown in FIG. 5A. ..

When configured in this way, as will be described later, when the folding processing unit 3 is in the folding mode, the branch claw 320 is first used when forming a deflection at the first folding position formed on the paper 6. The folding process of the roller pair 340 is changed from the closed state to the open state. Then, when the folding processing operation is completed, the folding processing unit 3 returns to the normal state by shifting the branch claw 320 from the open state to the closed state with respect to the first folding processing roller pair 340.

Further, in the folding processing unit 3 according to the present embodiment, as shown in FIG. 5B, the branching claw 320 is in a state of being open with respect to the first folding processing roller pair 340 as a normal state. Is also good.

When configured in this way, the folding processing unit 3 transfers the branch claw 320 to the first folding processing roller when the paper 6 is conveyed from the inlet transport roller pair 310 to the first forward / reverse rotation roller pair 330. The transition from the open state to the closed state is made for the pair 340. Then, when the paper 6 is conveyed by the first forward / reverse rotation roller pair 330, the branch claw 320 is changed from the closed state to the open state with respect to the first folding processing roller pair 340. Return to normal state.

Therefore, when the folding processing unit 3 is configured in this way, when the paper 6 is stopped except when the paper 6 is transported from the inlet transport roller pair 310 to the first forward / reverse rotation roller pair 330. The branch claw 320 is already open to the first folding roller pair 340. Therefore, in such a case, the folding processing unit 3 does not need to move the branching claw 320 from the closed state to the open state with respect to the first folding processing roller pair 340.

When the folding processing unit 3 is in the through mode, the rear end of the paper 6 conveyed from the inlet transfer roller pair 310 to the first forward / reverse rotation roller pair 330 is first forward / reverse rotation. When the roller pair 330 is removed or detected by the second paper detection sensor 372, the branch claw 320 is changed from the closed state to the open state with respect to the first folding processing roller pair 340 to be in the normal state. Return to.

On the other hand, when the folding processing unit 3 is in the folding mode, when the folding processing unit 3 forms a deflection at the first folding position of the paper 6 conveyed from the inlet conveying roller pair 310 to the first forward / reverse rotating roller pair 330. In addition, the branch claw 320 is changed from the closed state to the open state with respect to the first folding processing roller pair 340 to return to the normal state.

Next, an operation example when the folding processing unit 3 according to the present embodiment is in the through mode will be described with reference to FIGS. 6A to 6C. 6 (a) to 6 (c) are cross-sectional views showing the folding processing unit 3 in the through mode in the image forming apparatus 1 according to the present embodiment from the main scanning direction.

When the folding processing unit 3 according to the present embodiment is in the folding mode, first, as shown in FIG. 6A, the folding processing unit 3 is the first when the paper 6 is conveyed from the image forming unit 2. The paper detection sensor 371 detects the tip of the paper 6 in the transport direction and starts the rotation of each roller. Then, the folding processing unit 3 receives the paper 6 to which the paper 6 has been conveyed from the image forming unit 2 by the inlet transfer roller pair 310, and conveys the paper 6 toward the first forward / reverse rotation roller pair 330.

As shown in FIG. 6B, the folding processing unit 3 further conveys the paper 6 conveyed by the inlet transfer roller pair 310 to the downstream side in the transfer direction by the first forward / reverse rotation roller pair 330, and FIG. As shown in 6 (c), the paper 6 is conveyed toward the post-processing unit 4.

Next, an operation example when the folding processing unit 3 according to the present embodiment is in the folding mode will be described with reference to FIGS. 7 to 9. 7 to 9 are cross-sectional views showing the folding processing unit 3 in the folding mode in the image forming apparatus 1 according to the present embodiment from the main scanning direction. It should be noted that FIGS. 7 to 9 show an operation example when the folding processing unit 3 folds in three.

When the folding processing unit 3 according to the present embodiment is in the folding mode, first, as shown in FIG. 7A, the folding processing unit 3 is the first when the paper 6 is conveyed from the image forming unit 2. The paper detection sensor 371 detects the tip of the paper 6 in the transport direction and starts the rotation of each roller.

Then, the folding processing unit 3 receives the paper 6 to which the paper 6 has been conveyed from the image forming unit 2 by the inlet transfer roller pair 310, and conveys the paper 6 toward the first forward / reverse rotation roller pair 330. That is, in the present embodiment, the inlet transfer roller pair 310 functions as the first transfer roller pair.

As shown in FIG. 5B, the folding processing unit 3 further conveys the paper 6 conveyed by the inlet transfer roller pair 310 to the downstream side in the transfer direction by the first forward / reverse rotation roller pair 330.

After that, when the folding processing unit 3 detects the tip of the paper 6 in the transport direction by the second paper detection sensor 372 and then transports the paper 6 by a predetermined distance S1, as shown in FIG. 7B, the branching claw The 320 is changed from the closed state to the open state with respect to the first folding processing roller pair 340, and the rotation direction of the first forward / reverse rotating roller pair 330 is reversed.

As a result, as shown in FIG. 7C, the folding processing unit 3 bends the first folding position of the paper 6 toward the first folding processing roller vs. 340, and the formed bending position is set. By further transporting the paper 6 so as not to shift, the bending is guided to the nip portion of the first folding roller pair 340. That is, in the present embodiment, the first forward / reverse rotation roller pair 330 functions as the second transfer roller pair.

Then, as shown in FIG. 8A, the folding processing unit 3 sandwiches the deflection formed in the paper 6 at the nip portion of the first folding processing roller pair 340 from both sides to the first folding position. Along with making creases, as shown in FIGS. 8 (b) and 8 (c), the paper 6 is conveyed toward the second forward / reverse rotating roller pair 350, and is further conveyed downstream in the conveying direction. That is, in the present embodiment, the first folding roller pair 340 functions as the first folding roller pair.

After that, when the folding processing unit 3 detects the tip of the paper 6 in the transport direction by the third paper detection sensor 373 and then transports the paper 6 by a predetermined distance S2, as shown in FIG. 9A, the second By reversing the rotation direction of the forward / reverse rotation roller pair 350, the second folding position of the paper 6 is bent toward the second folding processing roller pair 360 side, and the formed bending position is not displaced. Further, the paper 6 is conveyed to guide the bending to the nip portion of the second folding roller pair 360. That is, in the present embodiment, the second forward / reverse rotation roller pair 350 functions as the third transfer roller pair.

Then, as shown in FIG. 9B, the folding processing unit 3 sandwiches the deflection formed in the paper 6 at the nip portion of the second folding processing roller pair 360 from both sides to the second folding position. Along with making a crease, as shown in FIG. 9C, the paper 6 is conveyed toward the post-processing unit 4. That is, in the present embodiment, the second folding roller pair 360 functions as the second folding roller pair.

In the present embodiment, the rollers common to the first forward / reverse rotation roller pair 330, the first folding processing roller pair 340, and the second folding processing roller pair 360 function as common rollers.

As a result of the operations shown in FIGS. 7 to 9, the paper 6 is in a state of being folded in three as shown in FIG.

In addition, in FIGS. 7 to 9, an example in which the folding processing unit 3 folds the paper 6 in three outside has been described. In addition, the folding processing unit 3 is the same as the operation described with reference to FIGS. 7 to 9, but the distance S1 and the distance S2 are changed according to the folding information such as the folding method and the size of the paper 6, respectively. It is possible to fold the paper 6 by other folding methods such as folding and Z-folding. The S1 and S2 are predetermined according to the folding information and are stored in a non-volatile storage medium such as a ROM 30 or an HDD 40.

That is, the folding processing unit 3 folds in three or Z by changing the timing of reversing the rotation directions of the first forward / reverse rotating roller pair 330 and the second forward / reverse rotating roller pair 350 according to the folding information. It is possible to fold the paper 6 by other folding methods such as.

When the folding processing unit 3 configured in this way stops the transfer of the paper 6 due to an abnormality such as a paper jam, a sensor abnormality, or a cover opening, the folding processing unit 3 can transfer the paper 6 by itself until the cause of the stoppage is resolved. You may not be able to do it. In such a case, the user himself / herself removes the sheet stopped in the device, but it is not easy.

Therefore, the folding processing unit 3 according to the present embodiment is rotated so that the second folding processing roller pair 360 is rotated in the direction of rotation when the paper 6 is conveyed in conjunction with the rotation. One of the gist is to provide the rotary knob 362 on the folding roller 361. Therefore, even if the folding processing unit 3 stops the transport of the paper 6 when an abnormality occurs, the user can easily remove the paper 6 by rotating the first rotary knob 362. ..

Next, refer to FIGS. 11 to 13 for a procedure for the user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality in the folding mode. I will explain. 11 to 13 are diagrams showing a procedure for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality in the folding mode. ..

As shown in FIG. 11A, when the folding processing unit 3 according to the present embodiment stops the transportation of the paper 6 due to an abnormality in the folding mode, the user first sees the arrow shown in FIG. 11B. The first rotary knob 362 is manually rotated in the direction of.

Then, when the first rotary knob 362 rotates in the direction of the arrow shown in FIG. 11B, the rotational force is transmitted to the folding roller 361. As a result, the second folding roller pair 360 rotates in the direction of the arrow shown in FIG. 11B in conjunction with the rotation of the first rotation knob 362. That is, in the present embodiment, the first rotary knob 362 functions as the first rotary portion.

In the present embodiment, the first rotary knob 362 is arranged inside the door, and the user is configured to open the door and rotate the first rotary knob 362 as needed. ing. In addition, the first rotary knob 362 is removable so that the user can rotate the first rotary knob 362 by attaching the first rotary knob 362 to the folding processing roller 361 as needed. It may be configured. Further, the first rotary knob 362 may be arranged on at least one of the first forward / reverse rotary roller pair 330, the first folding processing roller pair 340, and the second folding processing roller pair 360. ..

Then, when the second folding processing roller pair 360 rotates, the first forward / reverse rotating roller pair 330 and the first folding processing roller pair 340 follow the rotation of the second folding processing roller pair 360 in FIG. Rotate in the direction of the arrow shown in (b).

At this time, the rotation directions of the first forward / reverse rotation roller pair 330, the first folding processing roller pair 340, and the second folding processing roller pair 360 are the rotation directions when the paper 6 is conveyed in the folding mode. In the same direction as.

The first rotary knob 362 is transmitted to the folding roller 361 to rotate the folding roller 361 only when it is rotated in the direction of the arrow shown in FIG. 11B, but in the opposite direction. It is configured so that when it rotates, it idles and the rotational force is not transmitted to the folding roller 361.

When the user rotates the first rotary knob 362 as it is, the folding processing unit 3 sets the first folding position of the paper 6 on the first folding processing roller vs. 340 side as shown in FIG. 11 (c). By further transporting the paper 6 while bending the paper 6, the bending is guided to the nip portion of the first folding roller pair 340.

Then, when the user further rotates the first rotary knob 362, the folding processing unit 3 is formed on the paper 6 at the nip portion of the first folding processing roller pair 340 as shown in FIG. 12A. The bend is sandwiched from both sides to make a crease at the first folding position, and as shown in FIG. 12B, the paper 6 is conveyed toward the second forward / reverse rotating roller pair 350, and further conveyed. Transport to the downstream side in the direction.

After that, when the user further rotates the first rotary knob 362, the folding processing unit 3 hits the tip of the paper 6 against the second forward / reverse rotary roller pair 350 as shown in FIG. 12 (c). It becomes a state. In this state, when the user further rotates the first rotary knob 362, the folding processing unit 3 sets the second folding position of the paper 6 to the second folding processing roller as shown in FIG. 13A. By further transporting the paper 6 while bending it toward the pair 360, the bending is guided to the nip portion of the second folding roller pair 360.

Then, when the user further rotates the first rotary knob 362, the folding processing unit 3 is formed on the paper 6 at the nip portion of the second folding processing roller pair 360 as shown in FIG. 13 (b). The bend is sandwiched from both sides to make a crease at the second folding position, and the paper 6 is conveyed toward the post-processing unit 4 as shown in FIG. 13 (c). As a result, the paper 6 is ejected in a folded state.

As described above, according to the folding processing unit 3 according to the present embodiment, the user simply rotates the first rotary knob 362 even when the paper 6 is stopped due to an abnormality in the folding mode. It is possible to easily remove the paper 6.

In addition, in FIGS. 11 to 13, the procedure for removing the paper 6 whose transport is stopped at the position shown in FIG. 11A has been described, but FIGS. 11B, 11C and 12C have been described. The same procedure is used when removing the paper 6 whose transport has been stopped at the positions shown in a) to (c) and FIGS. 13 (a) to 13 (c).

That is, when the folding processing unit 3 according to the present embodiment is in the folding mode and the paper 6 is stopped at each position shown in FIGS. 11 to 13, the user can use the first rotary knob 362. The paper 6 can be easily removed simply by rotating.

In the following, when the paper 6 is stopped while the folding processing unit 3 is in the folding mode, the paper 6 can be removed by rotating the first rotary knob 362. The position of the paper 6 is set as the "folding mode removal position".

Next, a procedure for the user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops the transport of the paper 6 due to an abnormality in the through mode will be described with reference to FIG. To do. FIG. 14 is a diagram showing a procedure for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality in the through mode.

When the folding processing unit 3 according to the present embodiment is in the through mode, as shown in FIG. 14A, the branch claw 320 is in a closed state with respect to the first folding processing roller pair 340. Therefore, in the folding processing unit 3 according to the present embodiment, when an abnormality occurs while in the through mode, the branch claw 320 is set to the first folding processing roller pair 340 as shown in FIG. 14 (b). On the other hand, the paper 6 is stopped after the transition from the closed state to the open state.

As described above, the folding processing unit 3 according to the present embodiment closes the branch claw 320 with respect to the first folding processing roller pair 340 even when the paper 6 is stopped in the through mode. By transitioning from the open state to the open state, the state is the same as when the paper 6 is stopped in the folding mode.

After that, the procedure is the same as that described with reference to FIGS. 11 to 13. As a result, the paper 6 is ejected in a folded state.

In the folding processing unit 3 according to the present embodiment, in both the folding mode and the through mode, when the paper 6 is stopped by the first forward / reverse rotating roller pair 330 in a nip state. , The branch claw 320 may be configured to transition or stop from the closed state to the open state with respect to the first folding processing roller pair 340.

At this time, the folding processing unit 3 according to the present embodiment determines whether or not the paper 6 has been transported by a predetermined number of pulses after the tip of the paper 6 in the transport direction is detected by the first paper detection sensor 371. Thereby, it is determined whether or not the paper 6 is niped by the first forward / reverse rotation roller pair 330. Alternatively, the folding processing unit 3 according to the present embodiment determines whether or not the tip of the paper 6 in the transport direction is detected by the second paper detection sensor 372, so that the paper 6 is the first forward / reverse rotating roller pair. It is determined whether or not the nip is made by 330.

As described above, according to the folding processing unit 3 according to the present embodiment, the user only rotates the first rotary knob 362 even when the transport of the paper 6 is stopped due to an abnormality in the through mode. It is possible to easily remove the paper 6.

If the first rotary knob 362 is rotated while the branch claw 320 is closed with respect to the first folding roller pair 340, the paper 6 has no escape place. As a result, as shown in FIG. 15, the paper 6 becomes bellows between the inlet transfer roller pair 310 and the first forward / reverse rotation roller pair 330, which makes it difficult to remove the paper 6.

Therefore, when the folding processing unit 3 according to the present embodiment is in the through mode, as shown in FIG. 14B, the branching claw 320 is opened from the closed state with respect to the first folding processing roller pair 340. After transitioning to the state, the transfer of the paper 6 is stopped.

Next, the stop position of the paper 6 in the folding processing unit 3 according to the present embodiment and the method of removing the paper 6 at each stop position will be described with reference to FIGS. 16 to 19.

First, as shown in FIGS. 16A to 16C, a case where the paper 6 is stopped in a state where it is not sandwiched between the first forward / reverse rotating roller pair 330 will be described. 16 (a) to 16 (c) are diagrams for explaining a method for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality. Is.

In such a case, since the paper 6 is not sandwiched between the first forward / reverse rotation roller pair 330, the paper 6 is not removed even if the first rotation knob 362 rotates. Therefore, in such a case, the user cannot remove the paper 6 even if the first rotary knob 362 is rotated. Therefore, in such a case, the user only has to pull out the paper 6 from the upstream side in the transport direction.

At this time, as described above, since the paper 6 is removed by being pulled out from the upstream side in the transport direction, the branch claw 320 remains closed with respect to the first folding roller pair 340. good.

Next, as shown in FIG. 17A, the tip of the paper 6 is not detected by the second paper detection sensor 372, but the paper 6 is sandwiched between the first forward / reverse rotating roller pair 330. A case where the transportation is stopped will be described. 17 (a) and 17 (b) are diagrams for explaining a method for the user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops the transport of the paper 6 due to an abnormality. Is.

In such a case, the paper 6 is sandwiched between the first forward / reverse rotation roller pair 330, but is formed as shown in FIG. 17B even when the first rotation knob 362 rotates. The tip passes through the first forward / reverse rotating roller pair 330 before the deflection is pinched by the nip portion of the second folding roller pair 360.

Therefore, in such a case, the user cannot remove the paper 6 even if the first rotary knob 362 is rotated. Therefore, in such a case, the user only has to pull out the paper 6 from the upstream side in the transport direction.

At this time, as described above, since the paper 6 is removed by being pulled out from the upstream side in the transport direction, the branch claw 320 remains closed with respect to the first folding roller pair 340. good. However, at this time, the paper 6 may be removed by rotating the first rotary knob 362. Therefore, when the folding processing unit 3 stops the conveying of the paper 6 in the state shown in FIG. 17A, the folding processing unit 3 is in a state in which the branch claw 320 is opened from the closed state with respect to the first folding processing roller pair 340. It may be transitioned to.

Next, as shown in FIGS. 18A to 18C, even if the first rotary knob 362 rotates, the formed deflection is before being sandwiched between the nip portions of the second folding roller pair 360. A case where the paper 6 is stopped in a state where the tip of the paper 6 does not come off the first forward / reverse rotating roller pair 330 will be described. 18 (a) to 18 (c) are diagrams for explaining a method for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality. Is. In such a case, the user removes the paper 6 by the procedure described with reference to FIGS. 11 to 13.

In this way, the position of the paper 6 when the paper 6 can be removed by rotating the first rotary knob 362 is determined by the first paper detection sensor 371 at the front end in the transport direction or the rear end in the transport direction of the paper 6. It is the position from the detection of the paper to the time when the paper is transported by a predetermined distance.

Alternatively, the position is from the detection of the tip of the paper 6 in the transport direction by the second paper detection sensor 372 to the transport by a predetermined distance. This predetermined distance is predetermined according to the size of the paper 6 in the transport direction, and is stored in a non-volatile storage medium such as ROM 30 or HDD 40.

In addition, the first paper detection sensor 371 and the second paper detection sensor 372 may both be in a position where they can detect the paper 6. In addition, the paper 6 is located between the inlet transport roller pair 310 and the first forward / reverse rotation roller pair 330, and the second paper detection sensor 372 can detect the paper 6. You may.

In this embodiment, the size of the paper 6 in the transport direction is at least larger than the length between the inlet transport roller pair 310 and the first forward / reverse rotation roller pair 330. Therefore, in the present embodiment, the paper 6 does not get stuck between the inlet transfer roller pair 310 and the first forward / reverse rotation roller pair 330.

In the following, when the folding processing unit 3 according to the present embodiment stops the transfer of the paper 6, the paper 6 can be removed by rotating the first rotary knob 362. The position of 6 is defined as the "through mode removal position".

Next, as shown in FIG. 19, a case where the paper 6 is stopped in a state where it is not sandwiched between the first forward / reverse rotating rollers vs. 330 will be described. FIG. 19 is a diagram for explaining a method for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality.

In such a case, since the paper 6 is not sandwiched between the first forward / reverse rotation roller pair 330, the paper 6 is not removed even if the first rotation knob 362 rotates. Therefore, in such a case, the user cannot remove the paper 6 even if the first rotary knob 362 is rotated. Therefore, in such a case, the user only has to pull out the paper 6 from the downstream side in the transport direction.

At this time, as described above, since the paper 6 is removed by being pulled out from the downstream side in the transport direction, the branch claw 320 remains closed with respect to the first folding roller pair 340. good.

As described above, when the transport of the paper 6 is stopped in the folding processing unit 3 according to the present embodiment, the user can remove the paper 6 by a method suitable for the stop position.

Next, the processing when the folding processing unit 3 according to the present embodiment stops the transportation of the paper 6 due to the occurrence of an abnormality will be described with reference to FIG. FIG. 20 is a flowchart for explaining the processing when the folding processing unit 3 according to the present embodiment stops the transportation of the paper 6 due to the occurrence of an abnormality.

In the folding processing unit 3 according to the present embodiment, the paper 6 is transported by the second paper detection sensor 372 even after a certain period of time has elapsed after the first paper detection sensor 371 detects the tip of the paper 6 in the transport direction. An abnormality occurs when the tip of the direction cannot be detected. This fixed time is set to be at least longer than the time required for the paper 6 to pass through the first paper detection sensor 371. Further, this fixed time may be set to be at least longer than the time required for the tip of the paper 6 in the transport direction to pass through the first paper detection sensor 371 and then the second paper detection sensor 372. ..

When the folding processing unit 3 according to the present embodiment stops the conveying of the paper 6 due to an abnormality, it first determines whether the current mode is the folding mode or the through mode (S2001).

When the folding processing unit 3 determines in the determination process of S2001 that the current mode is the through mode (S2001 / through), the folding processing unit 3 determines whether or not the paper 6 has the through mode removal position (S2002).

When the folding processing unit 3 determines in the determination process of S2002 that the paper 6 is not in the through mode removal position (S2002 / NO), the folding processing unit 3 removes the paper 6 from the upstream side in the transport direction or the downstream side in the transport direction. A screen prompting the user is displayed on the display panel 600 (S2003). Then, when the paper 6 is removed, the folding processing unit 3 ends the processing when the paper 6 is stopped due to the occurrence of an abnormality.

On the other hand, when the folding processing unit 3 determines in the determination processing of S2002 that the paper 6 is in the through mode removal position (S2002 / YES), the generated abnormality is the power to the drive system such as opening the cover. It is determined whether or not the abnormality is such that it is blocked (S2004).

When the folding processing unit 3 determines in the determination processing of S2004 that the abnormality that has occurred is such that the power to the drive system is cut off (S2004 / YES), an abnormality such as closing the cover occurs. A screen prompting the user to eliminate the above-mentioned factors is displayed on the display panel 600 (S2005). At this time, since the electric power to the drive system of the folding processing unit 3 is cut off, the branching claw 320 cannot be changed to the open state with respect to the first folding processing roller pair 340. ..

When the cause of the abnormality is resolved, the folding processing unit 3 restores the power supply by starting the supply of electric power to the drive system, and sets the branch claw 320 to the first folding processing roller pair 340. Transition to the open state (S2006).

When the branching claw 320 is changed as described above, the folding processing unit 3 displays a screen on the display panel 600 prompting the user to remove the paper 6 by rotating the first rotary knob 362 (S2007). ). Then, when the paper 6 is removed, the folding processing unit 3 ends the processing when the paper 6 is stopped due to the occurrence of an abnormality.

On the other hand, when the folding processing unit 3 determines in the determination processing of S2004 that the abnormality that has occurred is not an abnormality that interrupts the power to the drive system (S2004 / NO), the first rotary knob 362 A screen prompting the user to remove the paper 6 by rotating the display panel 600 is displayed on the display panel 600 (S2007). Then, when the paper 6 is removed, the folding processing unit 3 ends the processing when the paper 6 is stopped due to the occurrence of an abnormality.

On the other hand, when the folding processing unit 3 determines in the determination processing of S2001 that the current mode is the folding mode (S2001 / folding), the folding processing unit 3 determines whether or not the paper 6 is in the folding mode removing position (S2001 / folding). S2008).

When the folding processing unit 3 determines in the determination process of S2008 that the paper 6 is not in the through mode removal position (S2002 / NO), the folding processing unit 3 removes the paper 6 from the upstream side in the transport direction or the downstream side in the transport direction. A screen prompting the user is displayed on the display panel 600 (S2009). Then, when the paper 6 is removed, the folding processing unit 3 ends the processing when the paper 6 is stopped due to the occurrence of an abnormality.

On the other hand, when the folding processing unit 3 determines in the determination processing of S2008 that the paper 6 is in the through mode removal position (S2008 / YES), the folding processing unit 3 removes the paper 6 by rotating the first rotary knob 362. A screen prompting the user to do so is displayed on the display panel 600 (S2003). Then, when the paper 6 is removed, the folding processing unit 3 ends the processing when the paper 6 is stopped due to the occurrence of an abnormality.

As described above, the folding processing unit 3 according to the present embodiment is rotated so that the second folding processing roller pair 360 is rotated in the direction in which the paper 6 is conveyed in conjunction with the rotation. One of the gist is to provide a first rotary knob 362 to be rotated. Therefore, even if the folding processing unit 3 stops the transport of the paper 6 when an abnormality occurs, the user can easily remove the paper 6 by rotating the first rotary knob 362. ..

In the present embodiment, the case where the paper 6 is stopped in the folding processing unit 3 has been described. However, when the image forming unit 2 and the post-processing unit 4 are provided with the first rotary knob 362, the image forming unit 2 and the image forming unit 2 and the post-processing unit 4 are provided. The same applies to the case where the paper 6 is stopped in the post-processing unit 4.

Further, in the present embodiment, the configuration in which the image forming unit 2, the folding processing unit 3, the post-processing unit 4, and the scanner unit 5 are provided in the image forming apparatus 1 has been described, but each unit is a different independent apparatus. It may be configured and the devices may be linked to form an image forming system.

Further, in the present embodiment, an example in which the first rotary knob 362 is configured to rotate the folding roller 361 in the same direction has been described, but when the paper 6 is conveyed through the folding roller 361. If it can be rotated in the same direction as the rotation direction of, it may be rotated in the opposite direction.

Further, in the present embodiment, an example in which the first rotary knob 362 is provided on the folding roller 361 has been described, but the rotational force of the first rotary knob 362 is applied to the folding roller 361 through a belt or the like. It may be provided anywhere as long as it is communicated.

Further, in the present embodiment, an example in which the first rotary knob 362 is provided in the folding processing roller 361 has been described, but the first forward / reverse rotating roller pair 330, the first folding processing roller pair 340, and the first It may be provided on any of the rollers included in the second folding roller pair 360.

Further, although the example in which the folding processing unit 3 according to the present embodiment is configured to fold the paper 6 in three has been described, the folding processing unit 3 may be configured to be folded in two. When configured in this way, the folding processing unit 3 according to the present embodiment performs the first folding processing directly from the inlet transport roller pair 310 without transporting the paper 6 to the first forward / reverse rotation roller pair 330. Transport towards roller vs. 340. Therefore, at this time, the branch claw 320 is in an open state with respect to the first folding processing roller pair 340.

Here, the procedure when the user removes the paper 6 when the folding processing unit 3 according to the present embodiment is configured in this way and the transport of the paper 6 is stopped due to an abnormality in the folding mode is shown in FIG. It will be described with reference to 21. FIG. 21 is a diagram showing a procedure for a user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops transporting the paper 6 due to an abnormality in the folding mode.

As shown in FIG. 21 (a), when the folding processing unit 3 according to the present embodiment stops the transport of the paper 6 due to an abnormality in the folding mode, the user first sees the arrow shown in FIG. 22 (b). The first rotary knob 362 is manually rotated in the direction of. When the first rotary knob 362 rotates in the direction of the arrow shown in FIG. 22 (b), the rotational force is transmitted to the folding roller 361. As a result, the second folding roller pair 360 rotates in the direction of the arrow shown in FIG. 22B in conjunction with the rotation of the first rotation knob 362.

When the user rotates the first rotary knob 362 as it is, the folding processing unit 3 further conveys the paper 6 while bending it toward the second folding processing roller vs. 360 side, as shown in FIG. 21 (b). This guides the deflection to the nip portion of the second folding roller pair 360.

Then, when the user further rotates the first rotary knob 362, the folding processing unit 3 is formed on the paper 6 at the nip portion of the second folding processing roller pair 360 as shown in FIG. 21 (c). The bend is sandwiched from both sides to make a crease, and as shown in FIG. 21D, the paper 6 is conveyed toward the post-processing unit 4. As a result, the paper 6 is ejected in a folded state.

As described above, according to the folding processing unit 3 according to the present embodiment, the user simply rotates the first rotary knob 362 even when the paper 6 is stopped due to an abnormality in the folding mode. It is possible to easily remove the paper 6.

In FIG. 21, the procedure for removing the paper 6 whose transport has been stopped at the position shown in FIG. 21 (a) has been described, but the transport is performed at each position shown in FIGS. 21 (b) and 21 (c). The procedure is the same when removing the stopped paper 6.

Next, the internal configuration of the folding processing unit 3 according to the present embodiment will be described with reference to FIG. FIG. 22 is a cross-sectional view showing the folding processing unit 3 according to the present embodiment from the main scanning direction.

As shown in FIG. 22, the folding processing unit 3 according to the present embodiment includes a second rotary knob 351, an inlet lower guide plate 380, an intermediate transport upper guide plate 381, an additional folding upper guide plate 382, and an origami paper ejection unit 383. , The relay paper ejection part guide plate 384, the inlet upper guide plate 385, the additional folding lower guide plate 386, the additional folding roller pair 387, and the remaining paper removing space 388 are provided.

The second rotary knob 351 is rotated to rotate the second folding roller pair 360 in conjunction with the rotation. That is, in the present embodiment, the second rotary knob 351 functions as the second rotary section. The lower inlet guide plate 380 and the upper inlet guide plate 385 guide the paper conveyed from the image forming unit 2 to the inlet transfer roller pair 310. That is, in the present embodiment, the lower entrance guide plate 380 functions as a third guide portion.

The intermediate transport upper guide plate 381 and the additional folding upper guide plate 382 guide the paper conveyed downstream in the transport direction by the first forward / reverse rotation roller pair 330 to the additional folding roller pair 387 on the downstream side in the transport direction. That is, in the present embodiment, the intermediate transport upper guide plate 381 functions as the second guide portion.

The additional folding upper guide plate 382 and the additional folding lower guide plate 386 further guide the paper transported downstream in the transport direction by the second folding roller pair 360 to the downstream side in the transport direction. That is, in the present embodiment, the additional folding upper guide plate 382 functions as the fourth guide portion.

The relay paper ejection unit guide plate 384 ejects paper to the outside of the folding processing unit 3. The additional folding roller pair 387 strengthens the crease by further pressing the creases formed on the paper folded by the first folding processing roller pair 340 and the second folding processing roller pair 360.

The remaining paper removal space 388 is a space for the user to remove the paper discharged by the second forward / reverse rotation roller pair 350. That is, in the present embodiment, the residual paper removing space 388 functions as a space portion.

Next, the stop position of the paper 6 in the folding processing unit 3 according to the present embodiment and the method of removing the paper 6 at each stop position will be described with reference to FIGS. 23 to 29. 23 to 29 are diagrams for explaining a method for the user to remove the paper 6 when the folding processing unit 3 according to the present embodiment stops the transportation of the paper 6 due to an abnormality.

First, as shown in FIG. 23, a case where the paper 6 is stopped while the paper 6 is detected by the third paper detection sensor 373 will be described. In such a case, the user first manually rotates the second rotary knob 351 in the direction of the arrow shown in FIG. 23.

Then, when the second rotary knob 351 rotates in the direction of the arrow shown in FIG. 23, the rotational force is transmitted to the second forward / reverse rotary roller pair 350. As a result, the second forward / reverse rotation roller pair 350 rotates in the direction of the arrow shown in FIG. 23 in conjunction with the rotation of the second rotation knob 351.

As a result, the paper 6 is conveyed downstream in the conveying direction and is discharged into the residual paper removing space 388. Then, the user removes the paper 6 discharged into the remaining paper removing space 388.

As described above, according to the folding processing unit 3 according to the present embodiment, the user simply rotates the second rotary knob 351 even when the paper 6 is stopped due to an abnormality in the folding mode. It is possible to easily remove the paper 6.

Next, as shown in FIGS. 24 and 25, a case where the paper 6 conveyed from the image forming unit 2 is stopped while being conveyed to the inlet transfer roller pair 310 will be described.

In such a case, as shown in FIG. 24, the user removes the paper 6 by opening the lower entrance guide plate 380 in the direction of the arrow, that is, toward the remaining paper removal space 388. Alternatively, in such a case, as shown in FIG. 25, the user removes the paper 6 by opening the entrance upper guide plate 385 in the direction of the arrow, that is, on the side opposite to the remaining paper removal space 388 side. ..

The first paper detection sensor indicates that the folding processing unit 3 according to the present embodiment is stopped while the paper 6 conveyed from the image forming unit 2 is being conveyed to the inlet transfer roller pair 310. It is detected by 371 or the fourth paper detection sensor 374.

Next, as shown in FIGS. 26 and 27, a case where the paper 6 is stopped between the first forward / reverse rotation roller pair 330 and the extension folding roller pair 387 will be described.

In such a case, as shown in FIG. 26, the user opens the origami paper ejection unit 383 in the direction of the arrow, that is, the upper part, and then opens the intermediate transport upper guide plate 381 in the direction of the arrow, that is, the upper part. Paper 6 is removed by opening it at the top.

Alternatively, in such a case, as shown in FIG. 27, the user opens the intermediate transport upper guide plate 381 in the direction of the arrow, that is, to the upper part, and then opens the additional fold upper guide plate 382 and the additional fold lower guide. Paper 6 is removed by opening the plate 386 in the direction of the arrow, that is, at the bottom.

A handle for opening and closing the origami paper ejection unit 383 is attached to the exterior portion of the origami paper ejection unit 383, whereby the user can easily open and close the origami paper ejection unit 383.

Further, the folding processing unit 3 according to the present embodiment is configured so that the intermediate transport upper guide plate 381 can be opened and closed while the origami paper ejection unit 383 is open, but the origami paper ejection unit 383 is opened and closed. Regardless of this, the intermediate transport upper guide plate 381 may be configured to be openable and closable.

Further, the folding processing unit 3 according to the present embodiment is configured so that the additional folding upper guide plate 382 and the additional folding lower guide plate 386 can be opened and closed with the origami discharging unit 383 open. The additional folding upper guide plate 382 and the additional folding lower guide plate 386 may be configured to be openable and closable regardless of the open / closed state of the paper unit 383.

In the folding processing unit 3 according to the present embodiment, the second paper detection sensor 372 indicates that the paper 6 is stopped between the first forward / reverse rotating roller pair 330 and the additional folding roller pair 387. Detect.

Next, as shown in FIGS. 28 and 29, a case where the paper 6 is stopped between the second folding roller pair 360 and the additional folding roller pair 387 will be described.

In such a case, as shown in FIG. 28, the user opens the origami discharge unit 383 in the direction of the arrow, that is, to the upper part, and then opens the intermediate transport upper guide plate 381 and the additional folding upper guide plate 382. Paper 6 is removed by opening in the direction of the arrow, that is, at the top.

Alternatively, in such a case, as shown in FIG. 29, the user opens the origami paper ejection unit 383 in the direction of the arrow, that is, opens the upper part, and then opens the additional folding lower guide plate 386 in the direction of the arrow. That is, the paper 6 is removed by opening it at the bottom.

The folding processing unit 3 according to the present embodiment is configured so that the intermediate transport upper guide plate 381 and the additional folding upper guide plate 382 can be opened and closed while the origami paper ejection unit 383 is open. The intermediate transport upper guide plate 381 and the additional folding upper guide plate 382 may be configured to be openable and closable regardless of the open / closed state of the paper unit 383.

Further, the folding processing unit 3 according to the present embodiment is configured so that the additional folding lower guide plate 386 can be opened and closed with the origami paper ejection unit 383 open, but the origami paper ejection unit 383 is opened and closed. Regardless of this, the additional folding lower guide plate 386 may be configured to be openable and closable.

The folding processing unit 3 according to the present embodiment detects that the paper 6 is stopped between the second folding processing roller pair 360 and the additional folding processing roller pair 387 by the fifth paper detection sensor 375. To do.

1 Image forming device 2 Image forming unit 3 Folding processing unit 4 Post-processing unit 5 Scanner unit 6 Paper 10 CPU
20 RAM
30 ROM
40 HDD
50 I / F
60 LCD
70 Operation unit 80 Dedicated device 90 Bus 101 Main control unit 102 Engine control unit 103 Input / output control unit 104 Image processing unit 105 Operation display control unit 200 Print engine 201 Paper feed table 202 Print paper output tray 300 Fold processing engine 310 Entrance transport Roller vs. 320 Branch claw 330 First forward / reverse rotation roller vs. 340 First folding roller vs. 350 Second forward / reverse rotation roller vs. 351 Second rotary knob 360 Second folding roller vs. 361 Folding roller 362 1st rotary knob 371 1st paper detection sensor 372 2nd paper detection sensor 373 3rd paper detection sensor 374 4th paper detection sensor 375 5th paper detection sensor 380 Entrance lower guide plate 381 Intermediate transport upper guide Plate 382 Additional fold upper guide plate 383 Origami discharge unit 384 Relay paper discharge part guide plate 385 Entrance upper guide plate 386 Additional fold lower guide plate 387 Additional fold roller vs. 388 Remaining paper removal space 400 Post-processing engine 401 Post-processing output tray 500 Scanner engine 501 Paper stand 502 ADF
503 Original Paper Ejection Tray 600 Display Panel 700 Network I / F

Japanese Unexamined Patent Publication No. 07-309525

Claims (4)

The first transfer roller pair that conveys the sheet and
A second transport roller pair capable of forward and reverse rotation, which receives the sheet transported by the first transport roller pair and transports the received sheet,
A pair of first fold rollers forming a first crease on the sheet,
A rotary knob that manually rotates the second transfer roller pair and the first folding roller pair,
With
Wherein a one of the rollers of the second conveying roller pair, a common roller which is also the one of the rollers of the first folding roller pair, the sheet processing apparatus characterized by pre-provided Machinery rolling knob. By manually rotating the rotary knob in a specific direction, the first crease is formed on the sheet held by the first transfer roller pair and the second transfer roller pair. The sheet processing apparatus according to claim 1, wherein the folding roller pair is rotated. An image forming unit that forms an image on the conveyed sheet,
An image forming system including a sheet processing device for forming creases on the sheet.
The sheet processing apparatus is a sheet processing apparatus of any crab according to claim 1 or 2,
The sheet processing apparatus is an image forming system characterized in that it is arranged above the image forming portion. An image forming unit that forms an image on the conveyed sheet,
An image forming system including a sheet processing device for forming creases on the sheet.
The sheet processing apparatus is a sheet processing apparatus of any crab according to claim 1 or 2,
An image forming system characterized in that the sheet processing apparatus is arranged on the side of the image forming portion.