JP2008127175A - Image forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of efficiently handling a slip sheet when a paper jam is caused on a downstream side of a junction point of a slip sheet and a transfer paper in an image forming device having a slip sheet inserting function. <P>SOLUTION: When a paper jam is caused, a paper jam position is detected. In the case wherein a paper jam is caused in a junction point of the slip sheet and the transfer paper and a slip sheet inserting position is not fixed, the slip sheet is held in a stop position, and after the paper jam is eliminated, the operation for inserting the slip sheet again is continued, and in the case wherein the slip sheet inserting position is fixed, a user is informed to eliminate the slip sheet and reset the slip sheet to solve the problem. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus having an interleaf insertion function for inserting and inserting a slip sheet between transfer paper and transfer paper, and particularly to a processing technique when a jam occurs on the transfer paper. Image forming apparatus.

  Conventionally, a slip sheet insertion function for inserting and inserting a slip sheet between transfer sheets and a transfer sheet has been introduced into the image forming apparatus, and a front cover, an inner cover, a back cover, etc. are inserted as slip sheets and a booklet is inserted. There is technology to create.

  In the image forming apparatus having the slip sheet insertion function, how to handle a paper jam (jamming) is automatically discharged when a transfer paper jam occurs. There was a method (refer patent document 1).

  However, in this method, there is no method for processing when a jam occurs downstream from the junction of the interleaving paper conveyance path and the transfer paper conveyance path.

JP 2003-280304 A

  The problem to be solved is that in an image forming apparatus having a slip sheet insertion function, a slip sheet is efficiently processed when a jam occurs downstream from a merge point between a slip sheet transport path and a transfer sheet transport path. The point is that the method could not be notified.

  In the image forming apparatus of the present invention, when a paper jam occurs in the image forming apparatus having a function capable of inserting a slip sheet between the transfer sheet and the transfer sheet, the image forming apparatus is located downstream from the joining point of the transfer sheet and the slip sheet. A paper jam occurrence position judging section for judging whether or not a paper jam has occurred, a slip sheet insertion order judging section for judging whether or not a slip sheet insertion order is determined, and the paper jam occurrence position judging section indicate a paper jam occurrence position. When it is determined that it is downstream from the merging point and the slip sheet insertion order determination unit determines that the slip sheet insertion order is not determined, the slip sheet that is stopped in the apparatus is held at the stop position. If the paper jam occurrence position determination unit determines that the paper jam occurrence position is downstream from the merging point, and the slip sheet insertion order determination unit determines that the slip sheet insertion order is determined. Remove the slip sheet that is stopped in the machine. Except for the most important feature that a control unit for notifying the user to return to the slip sheet tray.

  In the image forming apparatus of the present invention, when a paper jam occurs in the image forming apparatus having a function capable of inserting a slip sheet between the transfer sheet and the transfer sheet, the image forming apparatus is located downstream from the joining point of the transfer sheet and the slip sheet. A paper jam occurrence position judging section for judging whether or not a paper jam has occurred, a slip sheet insertion order judging section for judging whether or not a slip sheet insertion order is determined, and the paper jam occurrence position judging section indicate a paper jam occurrence position. When it is determined that it is downstream from the merging point and the slip sheet insertion order determination unit determines that the slip sheet insertion order is not determined, the slip sheet that is stopped in the apparatus is held at the stop position. If the paper jam occurrence position determination unit determines that the paper jam occurrence position is downstream from the merging point, and the slip sheet insertion order determination unit determines that the slip sheet insertion order is determined. Remove the slip sheet that is stopped in the machine. And a control unit for notifying the user to return to the slip sheet tray. The most important feature is that when a paper jam occurs downstream from the merge point, the slip sheet insertion order is determined. When there is no paper, it is not necessary to remove the interleaving paper stopped in the apparatus, and the paper jam processing is simplified.

  In an image forming apparatus with a slip sheet insertion function, when a jam occurs downstream from the merge point between the slip sheet transport path and the transfer sheet transport path, a method for efficiently processing the slip sheet cannot be notified. When the position where the paper jam occurs occurs downstream from the junction of the interleaving paper transport path and the transfer paper transport path, the interleaving paper may differ depending on whether the interleaving paper insertion order is fixed. Solved by notifying the user of the processing method.

[Constitution]
FIG. 1 is a functional block diagram of an image forming apparatus according to an embodiment of the present invention.

  The image forming apparatus 100 includes the following functional blocks. A paper jam occurrence position determination unit 11, a slip sheet insertion order determination unit 13, a display unit 15, an input unit 17, and a control unit 19.

  The paper jam occurrence position determination unit 11 is arranged in the transfer paper conveyance path 213 (FIG. 2) and the transfer paper interleaf conveyance path 215 (FIG. 2) when a paper jam occurs inside the image forming apparatus 100. Based on the rotation information of the sensor and the roller in the path, it is determined whether the position where the paper jam has occurred is upstream or downstream from the junction A205 (FIG. 2) of the interleaf and transfer paper.

  When the insertion position of the slip sheet is set by input from the input unit 17, the slip sheet insertion order determination unit 13 determines the insertion order of the slip sheet from the selection of the slip sheet insertion position and the slip sheet. Judge whether or not.

  The display unit 15 displays how the transfer paper and the interleaf paper are processed when a paper jam occurs.

  The input unit 17 performs input for operating and setting the image forming apparatus, and performs setting when inserting a slip sheet when inserting a slip sheet.

  The control unit 19 controls each unit of the image forming apparatus 100 and determines how to perform the slip sheet processing based on information from the paper jam occurrence position determination unit 11 and the slip sheet insertion order determination unit 13. The user is notified through the display unit 15.

  FIG. 2 is a schematic side view of the image forming apparatus according to the embodiment of the present invention. With reference to FIG. 2, a description will be given of a process in which transfer paper and interleaf are overlapped and discharged.

  The image forming apparatus 100 includes an image forming apparatus main body 101 and a post-processing apparatus 103.

  The image forming apparatus main body 101 is provided with a paper feed tray 211, and the transfer paper fed from the paper feed tray 211 is transferred and fixed by a developing and fixing unit (not shown), and the transfer paper transport path 213. And enters the post-processing device 103.

  The post-processing device 103 is provided with an interleaf tray 201, and the interleaf fed from the interleaf tray is stopped at the interleaf stop position 203 and is on standby, and the interleaf is inserted. When the transfer sheet is conveyed to the junction A205, it is conveyed from the stop position 203, overlapped with the transfer sheet at the junction A205, and reaches the intermediate tray 217 through the transfer sheet interleaf conveyance path 215. Post-processing such as stapling is performed, and the paper is discharged to the discharge tray 209.

[Treatment when a paper jam occurs]
FIG. 2 is an explanatory diagram of processing when a paper jam occurs.

  First, a case where the insertion order of slip sheets is not fixed will be described with reference to FIG. For example, if there is only one slip sheet to be inserted, or there are a plurality of slip sheets to be inserted, all are, for example, the same color paper, and which slip sheet is inserted at which designated insertion position If it does not matter (when the insertion order of the slip sheets is not fixed), when a jam occurs on the second sheet of transfer paper as shown in FIG. 2A, the following processing is performed.

  (A1) The slip sheet stopped in the apparatus is held at the stop position.

  (A2) The user is notified that the jammed paper is to be removed.

  (A3) After the paper jam is released, the conveyance of the slip sheet is resumed from the stop position.

Next, the case where the insertion order of the slip sheets is determined will be described with reference to FIG. In the case where it is determined which insertion sheet enters which insertion position, as in the case where, for example, a sheet having a different color is inserted at each insertion position, for example, as shown in FIG. As shown in FIG. 2B, when the slip sheet 1 that enters the second sheet, the slip sheet 2 that enters the fifth sheet, and the slip sheet 3 that enters the eighth sheet are different sheets, If a paper jam occurs on the transfer paper,
(B1) The user is notified that the slip sheet that has stopped in the apparatus is removed and returned to the slip sheet tray.

  (B2) The user is notified that the jammed paper is to be removed.

  (B3) After clearing the paper jam, the interleaving paper is transported from the interleaving tray, and the interleaving paper is inserted between the transfer paper and the transfer paper.

[flowchart]
Processing when a paper jam (jam) occurs in the image forming apparatus will be described with reference to the flowchart of FIG.

  S11: It is determined whether or not a jam has occurred. If a jam occurs, the operation proceeds to S13.

  S13: Stop the transfer paper and the interleaf.

  S15: It is determined whether or not the jam occurrence location is downstream from the junction A (205 in FIG. 1). In the case of the downstream side, the operation proceeds to S17. In the case of the upstream side, the operation is shifted to S21.

  S17: It is determined whether there is a distinction in the insertion order of the slip sheets. If there is a distinction, the operation proceeds to S31. If not, the operation proceeds to S19.

  S19: A message “Hold the slip sheet at the stop position” is displayed on the display panel of the image forming apparatus.

  After the display, the jammed transfer paper is removed and the apparatus is restarted in the same manner as normal jam processing.

  S21: When the jam occurrence point is upstream from the junction A (205 in FIG. 1), normal jam processing (the occurrence of the jam is displayed on the display panel and the user is prompted to remove the jammed paper). I do.

  S31: If there is a difference in the insertion order of the slip sheets, a message prompting the user to process is displayed on the display panel of the image forming apparatus, “Please remove the slip sheets and reset the slip sheets”.

[Effect of Example]
According to the image forming apparatus of the embodiment of the present invention, when a paper jam occurs in the image forming apparatus having the interleaf insertion function, the user is appropriately notified of how to perform the paper jam processing. . Therefore, until now, when a paper jam occurs due to the insertion of an interleaf, the paper jam is removed and even the interleaving paper that has not been jammed is removed, and then set in the interleaf tray again to form an image. Although it was necessary to perform the operation, in the present invention, when the paper jam is downstream from the joining point and the insertion order of the slip paper is not fixed, it is possible to resume the operation only by removing the paper jam. .

  In addition, when the insertion order of slip sheets is determined, the user is notified to remove the slip sheets through the display unit, so that the user can appropriately perform processing.

1 is a functional block diagram of an image forming apparatus (first embodiment). FIG. 1 is a schematic side view of an image forming apparatus (Example 1). Processing when jamming of transfer paper and interleaf paper occurs (Example 1). 5 is a flowchart of a jam processing operation of the image forming apparatus (first embodiment).

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Paper jam generation position judgment part 13 Interleaf insertion order judgment part 15 Display part 17 Input part 19 Control part 100 Image forming apparatus 101 Image forming apparatus main body 111 Post-processing apparatus 201 Interleaf tray 203 Stop position 205 Junction point A
207 Jam position 209 Discharge tray 211 Paper feed tray 213 Transfer paper transport path (inside the image forming apparatus main body)
215 Transfer paper interleaving path (inside the post-processing device)
217 Intermediate tray

Claims (3)

In the image forming apparatus having a function capable of inserting a slip sheet between the transfer paper and the transfer paper, when a paper jam occurs, it is determined whether or not it has occurred downstream from the joining point of the transfer paper and the slip sheet. A paper jam occurrence position determination unit;
A slip sheet insertion order determination unit and a paper jam occurrence position determination unit that determine whether a slip sheet insertion order is determined or not determine that a paper jam occurrence position is downstream from the merge point, and the slip sheet When it is determined by the insertion order determination unit that the insertion order of the slip sheets is not fixed, control is performed to hold the slip sheets stopped in the apparatus at the stop position until the conveyance operation is resumed, and the paper jam occurrence position determination is performed. If the section determines that the paper jam occurrence position is downstream from the merging point, and the slip sheet insertion order determination section determines that the slip sheet insertion order is determined, the stop position in the apparatus is stopped. An image forming apparatus comprising: a control unit that notifies the user to remove the paper and return it to the slip-sheet tray. The image forming apparatus according to claim 1,
The control unit determines that the paper jam occurrence position determination unit determines that the paper jam occurrence position is downstream from the merging point and determines that the insertion order of the slip sheets is not determined by the slip sheet insertion order determination unit. In the image forming apparatus, the user is notified that the slip sheet stopped in the apparatus is held at the stop position. The image forming apparatus according to claim 1, wherein
The image forming apparatus, wherein the slip sheet insertion order determination unit automatically determines whether or not a slip sheet insertion order is determined by setting a slip sheet insertion position.

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