JP5581647B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus such as a copying machine, a facsimile machine, a laser beam printer, and the like, and more particularly to a technique related to paper jam processing.

  Conventionally, in an image forming apparatus, a paper jam (hereinafter referred to as jam) may occur during image forming processing. In this case, the image forming process automatically stops, and the user is notified of the occurrence and location of the jam. Therefore, the user needs to remove the jammed paper and restore the apparatus.

  However, when a jam occurs in a state where the sheet being conveyed is held between the fixing units, the user may pull out the sheet toward the downstream side of the fixing unit. In this case, there is a problem that unfixed toner adheres to the fixing unit and causes subsequent paper to become dirty, and it may cause a fixing failure later.

  For example, in Patent Document 1, when a paper jam occurs on the fixing roller, the fixing roller is stopped and then the transfer roller is stopped after a predetermined time has elapsed, or the fixing roller and the transfer roller are stopped and then the fixing roller is rotated in reverse. By making the paper bend between the transfer roller and the fixing roller, the user can insert his / her finger into the bent part, making it easier to remove the jammed paper and It is disclosed that jam processing can be performed from the side.

  In Patent Document 2, when a jam occurs in the transfer roller unit and the fixing roller unit, the transfer roller is rotated so that the sheet is conveyed downstream, and the fixing roller is configured so that the sheet is conveyed upstream. It is disclosed that the paper is not rotated between the transfer roller and the fixing roller, and the transfer roller and the fixing roller are stopped at a position held by at least one of the pair of rollers by rotating the paper in the reverse direction.

  In the method described in Patent Document 1, since the jammed paper is strongly held between the transfer unit and the fixing unit, it is difficult to remove the jammed paper, and the user forcibly pulls out the paper. Therefore, there is a problem that the parts of the image carrier, transfer means and fixing means are damaged, and the life and performance are affected.

  The method described in Patent Document 2 solves the problem that the user has to forcibly pull out the jammed paper that is strongly held between the transfer unit and the fixing unit. Since both the fixing side and the transfer side are driven and the paper is bent in the apparatus, in such a configuration, the paper is shifted to either the fixing side or the transfer side, and the parts are damaged by the paper. There's a problem.

Therefore, the present invention has been made in view of the above problems, and even when a jam occurs in a state where a sheet being conveyed is held between fixing means, the jam processing is performed without damaging the components in the apparatus. and to provide an image forming equipment which is possible.

In order to solve the above-described problems, an image forming apparatus according to the present invention includes a conveyance unit that conveys a sheet, at least one image carrier that carries a toner image, a transfer unit that transfers the toner image to the sheet, and a transfer unit. Fixing means for fixing the toner image formed on the paper by means of, a detection means for detecting the paper provided upstream and downstream of the fixing means, and a drive means capable of switching the paper transport direction of the fixing means in the forward and reverse directions If a jam occurs when the paper being transported is held between the fixing means, the drive other than the fixing means is stopped, and the driving of the fixing means is reversely rotated until the paper comes out of the fixing means. Provided in a conveyance path between the sheet conveyance control means for reverse conveyance, the transfer means, and the fixing means, and in the conveyance path for accommodating the paper in the paper accommodation means, for accommodating the reversely conveyed paper Opening provided A sheet stopper means that is provided on the transfer means side of the opening and deflects and guides the paper to the paper storage means when the paper is reversely conveyed by the paper conveyance control means. rotated downward in association with the reverse rotation of the drive means, or per sheet pushing the trailing edge of the sheet, characterized in Rukoto is sandwiched.

Be provided by the present invention, even when a jam in a state in which the sheet being transported is interposed fixing means has occurred, without damaging the components in the device, an image forming equipment which is possible to jam Is possible.

1 is a schematic configuration diagram of an image forming apparatus according to an embodiment of the present invention. It is a figure explaining the paper conveyance operation | movement which concerns on embodiment of this invention. It is a figure explaining the paper bent in the apparatus without a paper storage area. It is a figure which shows the state which provided the spur in the reverse side guide. It is the figure which showed the example of attachment of a spur. It is a figure explaining the drive operation concerning this embodiment. It is a figure explaining the drive operation concerning this embodiment. It is a figure explaining the drive operation concerning this embodiment. It is a figure explaining the drive operation concerning this embodiment. It is a figure explaining the drive operation concerning this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining the paper conveyance operation | movement which concerns on this embodiment. It is a figure explaining operation of jam processing concerning this embodiment. It is a figure explaining operation of jam processing concerning this embodiment. It is a figure explaining operation of jam processing concerning this embodiment. It is a figure explaining operation of jam processing concerning this embodiment. It is a figure explaining operation of jam processing concerning this embodiment.

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

  FIG. 1 is a schematic configuration diagram of an image forming apparatus according to an embodiment of the present invention.

  The image forming apparatus includes an image forming unit 1, a register unit 3, a transfer unit 4, a fixing unit 5, a sheet transport unit 12, a sheet detection unit 7, a sheet detection unit 8, and a sheet supply unit 13.

  In the image forming apparatus, first, second, third, and fourth image forming units 1a, 1b, 1c, and 1d are arranged side by side, and images of different colors perform the latent image, development, and transfer processes. Formed through. Each of the image forming units 1a to 1d includes dedicated image carriers 2a, 2b, 2c, and 2d, and toner images of the respective colors are formed on the image carriers 2a to 2d.

  The sheet P1 conveyed one by one toward the image carriers 2a to 2d on which the toner images are formed is subjected to timing control by the registration unit 3 and is transferred onto the transfer unit 4 installed below the image carriers 2a to 2d. It is conveyed by being electrostatically attracted.

  Further, the toner images of the respective colors formed on the image carriers 2a to 2d are transferred to the paper P1 on the transfer means 4, and the paper P1 on which the toner images of the respective colors are transferred is heated and pressed by the fixing means 5. After the toner image is fixed, it is discharged out of the apparatus.

  The conveyance control operation according to the first embodiment of the present invention will be described below.

  FIG. 2 is a diagram for explaining a sheet conveying operation according to the present embodiment.

  As shown in FIG. 2, when an abnormality (jam) occurs in the apparatus in a state where the sheet P <b> 1 being conveyed is sandwiched by the fixing unit 5 and reaches the sheet detection unit 8, the sheet P <b> 1 moves the fixing unit 5. The drive (not shown) of the fixing unit 5 is rotated in the reverse direction (in the direction of the arrow) until it is removed, and the drive (not shown) except for the fixing unit 5 is stopped, thereby conveying the paper P1 to the paper storage area S (FIG. 2B). reference).

  Further, the paper storage area S is necessary because the paper P1 and the unfixed toner may fall into the apparatus only in the space where the paper is bent. Since the shape of the paper storage area S is determined in accordance with the layout of the apparatus, an area is secured so that the maximum paper size specified in the apparatus can be bent and accommodated.

  In FIG. 2B, the sheet P 1 is sandwiched not only at the fixing unit 5 but also at the position of the transfer unit 4, and the driving of the fixing unit 5 is reversely rotated (in the direction of the arrow). By conveying the sheet P1 to the upstream side, the sheet P1 is nipped at the position of the transfer unit 4, so that the nipped portion is stretched and the sheet P1 is bent.

  The sheet P1 is conveyed while being bent downward to the sheet accommodation area S because there is no area to bend on the opposite side (upper part in FIG. 2) of the sheet accommodation area S. As a result, the user cannot pull out the sheet P1 toward the downstream side of the fixing unit 5 and unfixed toner adheres to the fixing unit 5, thereby causing a problem or fixing failure that causes subsequent sheets to become dirty. It becomes possible to prevent.

  Further, since the paper P1 is conveyed to the paper storage area S, when the driving of the fixing unit 5 is rotated in the reverse direction, the paper P1 hits a component in the apparatus as shown in FIG. 3 and damages the component. Can be prevented.

  FIG. 3 is a diagram for explaining a sheet bent in an apparatus having no sheet storage area.

  FIG. 4 is a diagram illustrating a state in which a spur is provided on the reverse guide.

  When the driving of the fixing unit 5 is rotated in the reverse direction, there is a concern that the paper P1 is rubbed against the reverse side guide 9 of the paper storage area S and the toner adheres to the guide 9. Therefore, as shown in FIG. 4, a spur 10 is provided on the reverse side of the paper storage area S, and even if the paper P1 tries to bend to the reverse side of the paper storage area S when the driving of the fixing unit 5 is reversely rotated, The apex may be in contact with the paper P1, and the paper P1 may be fed into the paper storage area S.

  FIG. 5 is a view showing an example of attaching a spur.

  A shaft is attached to the bent shape portion of the guide 9 and the spur 10 is disposed. The spurs 10 may be arranged in at least one row in the sheet conveyance direction, and at least one position in the image center position with respect to the direction orthogonal to the sheet conveyance direction.

  Unlike the first embodiment, in the image forming apparatus in which the fixing unit 5 and the image forming unit can be removed and jammed without reversely driving the fixing unit 5, the user fixes the paper P1 before removing each of them. There is a possibility that the sheet P1 may be pulled out from the downstream side of the unit. Further, even when the fixing unit 5 is removed, the sheet P1 may be held between the fixing unit 5 and the sheet P1 is pulled out to the downstream side of the fixing unit 5. There is a possibility.

  6 to 10 are diagrams for explaining the driving operation according to the present embodiment.

  Next, the detection control of the paper P1 and the drive control of the fixing unit 5 will be described below.

  As shown in FIG. 6, the paper detection timing of the detection means 7 for detecting the paper P1 provided at an arbitrary position upstream of the fixing means 5 (for example, shared with the registration sensor), and the elapsed time since the detection of the paper P1. And the sheet detection means 8 provided immediately after the fixing means 5 on the downstream side of the fixing means 5 (a dimension position less than 1/3 of the minimum size paper of the apparatus specification even if it is farthest from the nip portion of the fixing means 5) Recognize position.

  As shown in FIG. 8, even if the paper P1 has reached the paper detection means 8, there is a possibility that the rear end of the paper P1 has passed through the fixing means 5, so the paper detection timing of the detection means 7 and the paper It is determined whether or not the sheet P1 is nipped by the fixing unit 5 based on the elapsed time after detecting P1.

  Although it is possible to determine the position of the paper P1 based only on the paper detection timing of the paper detection means 7 and the elapsed time after the detection of the paper P1, as shown in FIG. At this time, depending on the state of the paper P1, the fixing means 5 may be rotated in the reverse direction to damage parts. Therefore, the paper detection means 8 needs to detect the paper P1, and the paper detection means 8 detects the paper P1. If it is not detected, the fixing unit 5 is controlled so as not to reversely rotate.

  As shown in FIG. 10, when the sheet P1 has reached the fixing unit 5 but has not reached the sheet detecting unit 8, an abnormality has occurred in the apparatus, not a jam around the fixing unit 5 (for example, a cover). Open) and jams are also assumed, but the probability of such a situation occurring is considered low. Even if such a situation occurs, the sheet P1 hardly passes through the fixing unit 5, and most of the sheet P1 exists on the upstream side, so that the user pulls out the sheet P1 downstream. Since it is difficult to think, the fixing means 5 is controlled so as not to reversely rotate.

  As described above, the present embodiment is effective for the jam processing of the paper P1 that is jammed in the state of being sandwiched by the fixing unit 5 and reaching the paper detection unit 8 as shown in FIGS. Is. In particular, in a state where the sheet passes through the fixing unit 5 by more than half, there is a high possibility that the user pulls out the sheet P1 to the downstream side of the fixing unit 5, so that the effect of preventing the sheet P1 from being pulled out to the downstream side is high.

  A conveyance control operation according to the second embodiment of the present invention will be described below.

  FIG. 11 to FIG. 16 are diagrams for explaining a sheet conveying operation according to the second embodiment.

  In FIG. 11, when an abnormality (jam) occurs in the apparatus with the sheet P1 being conveyed being held between the fixing units 5, the driving (not shown) of the fixing unit 5 is reversely rotated until the sheet P1 passes through the fixing unit 5. At the same time, driving (not shown) except for the fixing unit 5 is stopped.

  At this time, in conjunction with the reverse rotation of the driving of the fixing means 5, the paper stopper 6 operates in the direction of the conveyance path (rotates downward in FIG. 11), and the rear end of the paper P1 is the paper stopper as shown in FIG. 6, the paper P <b> 1 is conveyed to the paper storage area S while being bent.

  When the sheet P1 is abnormal in the apparatus at the position shown in FIG. 11 (when the trailing edge of the sheet P1 passes through the transfer unit 4 and reaches the vicinity of the fixing unit 5), as shown in FIG. Is conveyed, or the rear end of the sheet P1 is conveyed toward the sheet storage area S.

  Depending on the stop position of the paper P1, the paper P1 is held by the paper stopper 6 as shown in FIGS. 13 and 14, and the paper P1 is conveyed to the paper storage area S. As described above, the sheet P1 held between the fixing units 5 can be transported to the sheet storage area S regardless of the sheet stop position.

  Further, as shown in FIGS. 15 and 16, the fixing unit 5 is disposed so that the sheet entrance of the fixing unit 5 is inclined toward the opening for the sheet P1 to enter the sheet storage area S. Regardless of the position where P1 stops, the paper P1 is positively conveyed toward the paper storage area S.

  As a result, the driving path of the fixing unit 5 is reversely rotated, and the conveyance path is not soiled by the unfixed toner adhered to the paper P1 conveyed to the upstream side of the fixing unit 5.

  The sheet stopper 6 is normally installed at a position that does not hinder the conveyance of the sheet P1 as shown in FIG. 11, and operates in the direction of the conveyance path in conjunction with the reverse rotation of the driving of the fixing unit 5 to thereby fix the fixing unit. When 5 rotates forward, it returns to its original position.

In the first and second embodiments described above, during the thick paper (201 g / m ² or more) mode, even if an abnormality occurs in the apparatus with the paper held between the fixing means 5, The conveyance control that reversely rotates the driving of the fixing unit 5 is not performed.

  FIGS. 17 to 21 are diagrams for explaining the jam processing operation.

  Next, an operation example when the user performs jam processing will be described. After performing the sheet conveyance control, the upper exterior unit 11 is opened and the fixing unit 5 is taken out from above as shown in FIG.

  As a result, the user can access the paper P1 after the paper conveyance control as shown in FIG. 18 is performed, and the paper P1 can be removed.

  In this embodiment, since the sheet P1 is sandwiched at the position of the transfer unit 4, it is desirable to perform jam processing after taking out the image forming unit 1d. However, the user does not take out the image forming unit 1d. Since there is a possibility of performing the jam processing, the sheet P1 is removed by separating a part (in this example, the image carrier 2d) which becomes a means for conveying the sheet at the position of the transfer unit 4 as shown in FIG. At this time, it is possible to prevent the sheet P1 from rubbing against the image carrier 2a.

  It is also possible to open the exterior unit 11 and take out the image forming unit instead of the fixing unit 5 to remove the sheet P1 that is adsorbed on the belt of the transfer unit 4.

  However, it is also conceivable that the paper will fit in the paper storage area S and cannot be gripped. In that case, after taking out the image forming unit, the guide 9 on the opposite side of the paper storage area S is configured to be openable and closable as shown in FIG.

  As another method of opening the exterior means when removing the paper P1, there is a method of opening an unillustrated exterior means provided on the front as shown in FIG. In this case, the paper P1 can be accessed only by opening only the exterior means. Also in this case, it is desirable to separate the image carrier 2d.

  In addition, the apparatus according to the present embodiment is provided with a not-illustrated notifying unit for notifying the user that a jam has occurred after performing paper conveyance control before the user performs a jam handling operation.

  For example, an alarm is sounded from the image forming apparatus. Furthermore, it is easier to provide a display unit and sound generation means (not shown) for instructing the jam processing method, or to display the jam processing method on a display unit of a terminal connected to the image forming apparatus by wire or wireless. It is possible for the user to perform jam processing according to instructions.

  The above-described embodiment is not limited to the color tandem direct transfer type printer as shown in FIG. 1, but can be applied to an image forming apparatus such as a monochrome printer or a color and monochrome digital multifunction peripheral.

  Further, according to the above-described embodiment, when an abnormality occurs in the apparatus in a state where the paper being conveyed is held between the fixing means, the driving of the fixing means is reversely rotated until the paper leaves the fixing means, and the fixing means By stopping the drive except for, the sheet is conveyed to the sheet accommodation area. This prevents the user from pulling out the paper toward the downstream side of the fixing unit, preventing unfixed toner from adhering to the fixing unit, and causing the backside of the paper to become fouled or poorly fixed. Is possible. Further, it is possible to prevent the jammed paper from damaging the components in the apparatus.

  In addition, according to the above-described embodiment, it is possible to transport the sheet held by the fixing unit to the sheet storage area regardless of the sheet stop position. As a result, regardless of the paper stop position held between the fixing means, the driving of the fixing means is reversely rotated, and the paper conveyed to the upstream side of the fixing means may damage parts in the apparatus. Can be prevented.

  Further, according to the above-described embodiment, it is possible to positively convey the sheet by the sheet accommodation area.

  In addition, according to the above-described embodiment, the transfer unit and the component that transports the paper together with the transfer unit are separated from each other, so that it is possible to prevent the jamming of the user from affecting the life and performance of the component in the apparatus. it can.

  Further, according to the above-described embodiment, the jam is detected depending on the sheet detection timing of the detection unit that detects the sheet provided on the upstream side of the fixing unit, the time after the detection of the sheet, and the detection status of the detection unit on the downstream side of the fixing unit. By recognizing the situation, it is possible to switch the operation of the paper transport unit, and to prevent damage to the device by preventing the drive of the fixing means from rotating backward in the case of a jam that is caught in the paper. can do.

  In addition, according to the above-described embodiment, after performing the paper transport control, the user is notified that a jam has occurred. The paper cannot be pulled out toward the downstream side. Accordingly, it is possible to prevent a problem that unfixed toner adheres to the fixing unit and causes subsequent paper to become dirty and a fixing failure.

  Further, according to the above-described embodiment, since the paper position and the instruction of the jam processing operation are displayed on the display unit, it is possible to accurately notify the user of the paper position and the jam processing operation.

  In addition, according to the above-described embodiment, since the position of the paper and the jam handling operation are notified by voice, the user who cannot easily see the display unit can accurately jam the paper.

  In addition, according to the above-described embodiment, by displaying a jam processing instruction on the display unit of the terminal, it is possible to notify the user away from the apparatus of the jam, and further, the position of the paper on the display unit larger than the apparatus display unit Since the jam handling operation is displayed, the user can easily recognize the paper position and the jam handling operation.

  In addition, according to the above-described embodiment, even when a jam occurs in a state where the paper being conveyed is held between the fixing units, the image forming apparatus can perform jam processing without damaging the components in the apparatus. Can be configured.

  Further, according to the above embodiment, it is possible to accurately notify the user of the paper position and the jam handling operation.

  In addition, according to the above-described embodiment, a user who is difficult to see the display unit can accurately perform jam processing.

  Further, according to the above embodiment, a jam can be notified to a user away from the apparatus, and the user can easily recognize the position of the paper and the jam handling operation.

  The above-described embodiment is a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiment alone, and various modifications are made without departing from the gist of the present invention. Implementation is possible.

  The image forming apparatus according to the present invention guides the conveyance of the sheet to the fixing unit and the opening provided in the conveyance path for accommodating the sheet in the sheet accommodation unit when the sheet conveyance control unit reversely conveys the sheet. Therefore, a conveyance guide inclined downward toward the opening is provided.

  In the image forming apparatus according to the present invention, when the paper is reversely conveyed by the paper conveyance control means, a paper stopper means for deflecting and guiding the paper to the paper accommodation means is provided on the transfer means side of the opening. And

  Further, the image forming apparatus according to the present invention is characterized in that the sheet entrance of the fixing unit is inclined with respect to the opening for the sheet to enter the sheet storage unit.

  The image forming apparatus according to the present invention is characterized in that after the sheet is stored in the sheet storing unit, the transfer unit and the component for transporting the sheet integrated with the transfer unit can be separated from each other. .

  In the image forming apparatus according to the present invention, when the detection unit on the upstream side of the fixing unit detects a sheet, the image forming apparatus is based on the elapsed time from the detection of the sheet and the detection state of the detection unit on the downstream side of the fixing unit. A paper nipping judgment means for judging whether or not the paper is nipped by the fixing means, and the paper conveyance control means reversely rotates the driving of the fixing means based on the judgment of the paper nipping judgment means. It is characterized by determining whether to carry back.

  In addition, the image forming apparatus according to the present invention includes an informing unit that notifies the user that a jam has occurred after the sheet is stored in the sheet storing unit.

  The image forming apparatus according to the present invention further includes a display unit that displays an instruction of a jam processing method when a jam occurs. The display unit stores the paper in the paper storage unit, and then displays the jam processing method. An instruction is displayed.

  The image forming apparatus according to the present invention further includes voice instruction means for instructing a jam processing method by voice when a jam occurs. The voice instruction means performs jam processing after storing paper in the paper storage means. Instructing the method to the user by voice.

  The image forming apparatus according to the present invention further includes a terminal device having a display unit connected to the image forming apparatus by wire or wirelessly, and after the sheet is stored in the sheet storing unit, the instruction of the jam processing method is issued to the terminal. It displays on the display part of an apparatus, It is characterized by the above-mentioned.

  The present invention can be applied to applications such as an image forming apparatus.

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c, 1d Image formation part 2a, 2b, 2c, 2d Image carrier 3 Resist means 4 Transfer means 5 Fixing means 6 Paper stopper 7 Paper detection means 8 Paper detection means 9 Reverse side guide 10 Spur 11 Exterior Means 12 Paper transport means 13 Paper supply means P1 Paper S Paper accommodation area

JP 7-157141 A JP 2006-84632 A

Claims (9)

Conveying means for conveying paper;
At least one image carrier carrying a toner image;
Transfer means for transferring the toner image to the paper;
Fixing means for fixing the toner image formed on the paper by the transfer means;
Detection means for detecting the paper provided upstream and downstream of the fixing means;
Driving means capable of switching the paper conveying direction of the fixing means between forward and reverse directions;
When a jam occurs while the sheet being conveyed is clamped by the fixing unit, driving other than the fixing unit is stopped, and the driving of the fixing unit is reversely rotated until the sheet comes out of the fixing unit. Paper transport control means for transporting the paper in reverse,
A paper storage unit that is provided in a transport path between the transfer unit and the fixing unit and stores the reversely transported paper;
An opening provided in a conveyance path for storing the paper in the paper storage means;
A paper stopper means that is provided on the transfer means side of the opening, and deflects and guides the paper to the paper storage means when the paper is reversely conveyed by the paper conveyance control means,
The image forming apparatus according to claim 1, wherein the sheet stopper unit rotates downward in conjunction with the reverse rotation of the driving of the fixing unit, and the rear end of the sheet is pressed against or the sheet is sandwiched.   The image forming apparatus according to claim 1, further comprising a conveyance guide inclined downward toward the opening to guide conveyance of the sheet to the fixing unit.   3. The image forming apparatus according to claim 1, wherein a sheet entrance of the fixing unit is inclined toward the opening for allowing the sheet to enter the sheet storage unit.   4. The transfer unit and a part for transporting the sheet integrated with the transfer unit can be separated from each other after the sheet is stored in the sheet storage unit. The image forming apparatus according to claim 1. When the detection unit upstream of the fixing unit detects the sheet, the sheet is detected based on an elapsed time since the detection of the sheet and a detection state of the detection unit downstream of the fixing unit. A paper nipping judgment means for judging whether or not the paper is nipped by the fixing means,
5. The sheet conveyance control unit determines whether to reversely convey the sheet by reversely rotating the driving of the fixing unit based on the determination of the sheet nipping determination unit. The image forming apparatus according to any one of the above.   The image forming apparatus according to claim 1, further comprising a notifying unit that notifies a user that a jam has occurred after storing the sheet in the sheet storing unit. Display means for displaying an instruction of a jam processing method when the jam occurs;
The image forming apparatus according to claim 1, wherein the display unit displays an instruction of the jam processing method after the sheet is stored in the sheet storage unit. Voice instruction means for instructing a jam processing method by voice when the jam occurs;
8. The image formation according to claim 1, wherein the voice instruction unit instructs the user of the jam processing method by voice after the sheet is stored in the sheet storage unit. apparatus. A terminal device including a display unit connected to the image forming apparatus in a wired or wireless manner;
9. The image forming apparatus according to claim 1, wherein an instruction of the jam processing method is displayed on a display unit of the terminal device after the paper is stored in the paper storage unit. .

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