JP2009298561A - Paper processing device and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper processing device and an image forming apparatus capable of displaying an operation guide image on a manual feed tray on which paper sheets are placed, thereby allowing a user to easily check how to place the paper sheets on the manual feed tray. <P>SOLUTION: The image forming apparatus 100 has an operation panel 140, an image forming section 110, the manual feed tray 82, a control section 30, and a liquid crystal display section 83. The operation panel 140 accepts setting operations to set image forming conditions for the paper sheet P. The image forming section 110 forms an image on the paper sheet P based on the image forming conditions entered at the operation panel 140. The manual feed tray 82 holds the paper sheet P placed to be fed to the image forming section 110 with the paper sheet placement surface exposed to the outside of the image forming apparatus 100. The control section 30 creates a preview image PV based on the setting operations. The liquid crystal display section 83 displays the preview image PV on the paper sheet placement surface of the manual feed tray 82. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sheet processing apparatus and an image forming apparatus that perform processing on a sheet set on a manual feed tray.

  Generally, a paper processing apparatus that performs processing such as image forming processing on paper includes a manual feed tray that feeds paper to the processing unit. When placing paper on such a manual feed tray, if the paper is placed in the wrong way, there is a problem that the paper is not properly processed and the paper is wasted.

  For example, in an image forming apparatus (paper processing apparatus) that performs image forming processing on both sides of a sheet, image forming processing and perforation processing are performed on one printing surface of the sheet, and the sheet is discharged to a sheet discharge tray, and then again to the sheet discharge tray. In some cases, the user places the discharged paper on a manual feed tray and performs an image forming process on the other printing surface. In such an image forming apparatus that performs image forming processing on both sides of the paper, when the paper discharged to the paper discharge tray is placed again on the manual feed tray, if the paper is placed in the wrong direction, the printing direction on the paper is changed. The front and back sides are in opposite directions, and the paper is wasted.

Therefore, when the paper discharged to the paper discharge tray is placed on the manual feed tray, a method for placing the paper on the manual feed tray is provided in the paper so that the user does not mistake the paper placement direction. Some of them are displayed on the operation panel with an image or character information indicating the position (for example, see Patent Document 1).
JP 2004-286885 A

  However, the processing apparatus disclosed in Patent Document 1 has a problem in that it takes time and effort for the user to check how the paper is placed on the manual feed tray while checking the display contents of the operation panel one by one.

  The present invention provides a paper processing apparatus and an image forming apparatus that allow a user to easily check a paper placement method on a manual feed tray by displaying an operation guide image on a manual feed tray on which paper is placed. For the purpose.

  The sheet processing apparatus according to the present invention includes an operation unit, a processing unit, a manual feed tray, a control unit, and a display unit. The operation unit accepts an operation for setting processing conditions for a sheet. The processing unit performs processing on the paper based on the processing conditions input by the operation unit. The manual feed tray is provided with a sheet to be fed to the processing unit and a sheet placement surface exposed to the outside of the apparatus. The control unit creates an operation guidance image based on the setting operation. The display means displays an operation guidance image on the paper placement surface of the manual feed tray.

  In this configuration, an operation guidance image can be displayed on the paper placement surface of the manual feed tray exposed to the outside of the apparatus. For this reason, the paper placement method can be confirmed from the operation guide image.

  The operation guide image is preferably an image that displays the state of the processed paper in actual size. Thereby, when the paper is placed on the manual feed tray, the state of the processed paper can be confirmed.

  Further, it is preferable that the display means displays the operation guidance image at a position where the sheet on the upper surface of the manual feed tray is to be placed. Thereby, it is possible to easily grasp the position where the paper is placed on the manual feed tray.

  Moreover, it is preferable that the manual feed tray further includes a touch panel that detects a pressing force, and the control unit receives a setting operation via the touch panel. Thus, the setting operation can be performed by operating the touch panel arranged on the manual feed tray.

  According to the present invention, the user can easily confirm how to place the paper on the manual feed tray.

  An image forming apparatus (paper processing apparatus) 100 according to a first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing the overall configuration of the image forming apparatus 100. FIG. 1 illustrates a state in which the automatic document reading unit 120 is removed. FIG. 2 is a diagram illustrating an overall configuration of the image forming apparatus 100. 1 and 2, a part of the configuration around the manual feed tray 82 is omitted.

  The image forming apparatus 100 mainly includes an image forming unit 110, an automatic document reading unit 120, and a control unit 30, and performs multicolor and single color printing (image formation) processing on the paper P in accordance with image data.

  The automatic document reading unit 120 is arranged on the upper part of the image forming unit 110, has a document placing table 92 made of transparent glass on which the document DP is placed, and automatically conveys the document DP on the document placing table 92. Scan the original image.

  In the present embodiment, an example in which the image forming apparatus 100 includes an automatic document reading unit 120 is described. However, when the document reading is not performed, the image forming apparatus 100 may not include the automatic document reading unit 120.

  In the present embodiment, the image forming apparatus 100 that performs the printing process on the paper P is described as an example. However, the present invention is not limited to this. For example, the present invention may be applied to a bookbinding apparatus that performs bookbinding processing on paper P, a processing apparatus that performs punching processing on paper P, and a processing apparatus that performs stapling processing on paper P. Also in this case, the same effect as the image forming apparatus 100 according to the present embodiment can be obtained.

  The image forming unit 110 includes an exposure unit 1, a developing device 2, an intermediate transfer belt unit 6, a fixing unit 7, paper feed cassettes 81A and 81B, a manual feed tray 82, a paper discharge tray 91, an operation panel (operation unit) 140, and the like. is doing. The image forming unit 110 performs a printing process on the paper P.

  The intermediate transfer belt unit 6 is disposed below the paper discharge tray 91 and includes an intermediate transfer belt 61, an intermediate transfer belt driving roller 62, an intermediate transfer belt driven roller 63, an intermediate transfer roller 64, and an intermediate transfer belt cleaning unit 65. is doing.

  Four developing devices 2 are arranged in parallel below the intermediate transfer belt unit 6. The four developing devices 2 have substantially the same configuration, and are black (K), cyan (C), magenta (M), and yellow (Y) in the direction from the intermediate transfer belt driven roller 63 toward the intermediate transfer belt driving roller 62. The toners corresponding to the respective colors are stored in order.

  Here, the configuration of the developing device 2 in which toner corresponding to black (K) located immediately below the intermediate transfer belt driven roller 63 is stored will be described as follows.

  The developing device 2 includes a photosensitive drum 3, a charger 5, and a cleaner unit 4. The developing device 2 supplies toner to the electrostatic latent image formed on the peripheral surface of the photosensitive drum 3 to visualize it. The toner image visualized on the peripheral surface of the photosensitive drum 3 is supplied to the intermediate transfer belt 61. The charger 5 is a charger-type charger that uniformly charges the surface of the photosensitive drum 3 to a predetermined potential.

  The exposure unit 1 is a laser scanning unit (LSU) provided with a laser emitting portion, a reflection mirror, and the like. The exposure unit 1 has a function of exposing each of the photosensitive drums 3 charged according to the input image data and forming an electrostatic latent image according to the image data on the surface thereof.

  The paper feed cassettes 81 </ b> A and 81 </ b> B are stacked with paper P to be fed to the image forming unit 110, and are provided below the exposure unit 1 of the image forming unit 110. A plurality of paper sizes P to be fed to the image forming unit 110 can also be placed on the manual feed tray 82. A paper discharge tray 91 provided above the image forming unit 110 is a tray for collecting the sheets P on which image forming processing has been performed by the image forming unit 110.

  The image forming unit 110 is provided with a paper transport path L that feeds the paper P placed on the paper feed cassettes 81 </ b> A and 81 </ b> B or the manual feed tray 82 to the paper discharge tray 91 via the transfer roller 10 and the fixing unit 7. ing. The paper transport path L is a transport path from one of the paper feed cassettes 81 </ b> A and 81 </ b> B and the manual feed tray 82 to the paper discharge tray 91. In the sheet conveyance path L, pickup rollers 11A, 11B, and 11C, a plurality of conveyance roller pairs 12A, a registration roller pair 13, a transfer roller 10, a fixing unit 7, and a post-processing unit 50 are arranged in this order from the upstream side to the downstream side. Has been. Different sizes of paper P are set in the paper feed cassettes 81A and 81B.

  Pickup rollers 11A and 11B are provided near the ends of the paper feed cassettes 81A and 81B, pick up the paper P placed on the paper feed cassettes 81A and 81B one by one, and transport it along the paper transport path L. It feeds out to the roller pair 12A. The pickup roller 11 </ b> C is provided near the end of the manual feed tray 82, picks up the paper P one by one from the manual feed tray 82, and feeds the paper P along the paper transport path L to the transport roller pair 12 </ b> A.

  The registration roller pair 13 performs registration adjustment by bending the paper P between the pair of conveyance rollers 12A on the downstream side. The registration roller pair 13 conveys the paper P to the roller pair including the upstream intermediate transfer belt driving roller 62 and the transfer roller 10 at a timing when the leading edge of the toner image on the photosensitive drum 3 and the leading edge of the paper P are aligned.

  The roller pair composed of the intermediate transfer belt drive roller 62 and the transfer roller 10 is a roller pair that transfers the toner image carried on the intermediate transfer belt 61 onto the printing surface of the paper P.

  The fixing unit 7 is disposed immediately above the transfer roller 10, has a roller pair including a heat roller 71 and a pressure roller 72, and heats and pressurizes the sheet P on which the toner image is transferred to thereby surface the sheet P The toner image is fixed to the toner image.

  The fixing unit 7 has a cleaning unit 40 in the vicinity of the heat roller 71 for removing residual toner attached to the outer peripheral surface of the heat roller 71.

  The post-processing unit 50 includes a pair of conveying rollers 12B, and performs processing such as punching and stapling on the paper P that has passed through the fixing unit 7. The paper P that has passed through the post-processing unit 50 is conveyed to the paper discharge tray 91. In the present embodiment, the image forming apparatus 100 is described with an example in which the post-processing unit 50 is provided. However, the present invention is not limited to this. For example, the image forming apparatus 100 may not include the post-processing unit 50 when post-processing on the paper P is not required according to the specifications of the image forming apparatus.

  In the present embodiment, the image forming apparatus 100 is described with an example in which the image forming unit 110 includes paper feed cassettes 81 </ b> A and 81 </ b> B that feed paper P to the image forming unit 110 and a manual feed tray 82. However, the present invention is not limited to this. For example, the image forming apparatus 100 may include only the manual feed tray 82.

  The control unit 30 is disposed below the automatic document reading unit 120 and controls the image forming unit 110 and the automatic document reading unit 120.

  FIG. 3 is a diagram illustrating a configuration around the transport path L from the manual feed tray 82 to the transport roller pair 12A. In FIG. 3, the detailed configuration around the manual feed tray 82 is not shown. FIG. 4A is a diagram illustrating a configuration of the manual feed tray 82 in a side view. FIG. 4B is a diagram illustrating a configuration in a top view around the manual feed tray 82.

  The manual feed tray 82 includes width guides (guide means) 84A and 84B, a rotary encoder (detection unit) 84C, a paper detection sensor 84D, a length guide 85A, a rotary encoder 85B, and a liquid crystal display unit (display unit and liquid crystal display unit) 83. I have.

  The width guides 84A and 84B are arranged in parallel with the longitudinal direction of the manual feed tray 82, and are supported so as to be movable in the width direction orthogonal to the longitudinal direction. The width guides 84A and 84B bring the paper P to the center from both ends in the width direction. As a result, a plurality of different sizes of paper P can be set on the manual feed tray 82 with the center aligned. For this reason, the pickup roller 11C located at the center can smoothly feed out the paper P of any size along the transport path L.

  The rotary encoder 84C is located at the center of the transport path L and is sandwiched between arm portions that are parallel to the width direction of the width guides 84A and 84B. The rotary encoder 84C has a gear shape on its outer peripheral surface, and meshes with linear gears provided on the arm portions of the width guides 84A and 84B. The width intervals of the linear gears of the width guides 84A and 84B are provided to be equal. As a result, when one of the width guides 84A and 84B moves in the width direction, the other also moves at an equal distance in the opposite direction of the width direction.

  The length guide 85A extends in the longitudinal direction along the side end of the manual feed tray 82 from the support end of the manual feed tray 82, that is, from the pickup roller 11C side to the open end side. The length guide 85 </ b> A is bent at a right angle on the open end side and extends to the other side end of the manual feed tray 82 across the upper surface of the liquid crystal display unit 83. The length guide 85A is engaged with the manual feed tray 82 so as to be movable in the longitudinal direction.

  The rotary encoder 85B is disposed in the vicinity of the support end of the manual feed tray 82 on the side where the width guide 84A is provided, and its outer peripheral surface has a gear shape. The rotary encoder 85B meshes with a linear gear provided along the longitudinal direction of the length guide 85A, and detects the movement of the length guide 85A in the longitudinal direction.

  The paper detection sensor 84D is disposed in the vicinity of the pickup roller 11C. When the paper P is placed on the manual feed tray 82, the leading end extending downward is urged and moved by the paper P. Detect movement. In the present embodiment, an example in which the manual feed tray 82 includes a paper detection sensor 84D is described. However, the present invention is not limited to this. For example, according to the specifications of the image forming apparatus 100, the manual feed tray 82 may not include the paper detection sensor 84D.

  The liquid crystal display unit 83 is disposed so as to cover almost the entire surface of the manual feed tray 82. The liquid crystal display unit 83 displays a preview image (operation guide image) PV at a position where the paper P is placed. Thereby, the user can easily grasp the position where the paper P is placed on the manual feed tray 82.

  FIG. 5 is a block diagram illustrating a configuration of control processing of the control unit 30.

  The control unit 30 includes a storage unit 30A that stores image data input from the automatic document reading unit 120 or the personal computer PC. Based on an operation input from the operation panel 140, the automatic document reading unit 120 and the image forming unit 110 are provided. The driving of the post-processing unit 50 is controlled. When the manual feed tray 82 is selected, the control unit 30 causes the liquid crystal display unit 83 to display a preview image PV enlarged or reduced according to the paper size selected by the operation input. Here, the preview image PV is created based on the image data of the document DP read by the automatic document reading unit 120 or the image data transmitted from the personal computer PC. When image data of a plurality of pages is transmitted, the image data of the first page is displayed as a preview image PV. In the present embodiment, an example in which the image data of the first page is displayed as the preview image PV is described. However, the present invention is not limited to this. It may be set as appropriate according to the specifications of the image forming apparatus 100.

  On the other hand, in the control unit 30, the paper detection sensor 84D detects the leading edge of the paper P, and detects the positions of the length guide 85A and the width guides 84A and 84B from the rotational speeds of the rotary encoder 85B and the rotary encoder 84C. Then, the size of the paper placed on the manual feed tray 82 is determined, and the size of the paper placed on the operation panel 140 is displayed. Accordingly, the size of the paper P set on the manual feed tray 82 can be confirmed from the display on the operation panel 140.

  FIG. 6 is a flowchart illustrating a control flow in the control unit 30. FIG. 7A is a diagram showing a state in which the preview image PV read by the automatic document reading unit 120 is displayed on the liquid crystal display unit 83. The liquid crystal display unit 83 displays the preview image PV in the same size as the size of the paper P selected on the operation panel 140. FIG. 7B is a diagram illustrating a state where the paper P is placed on the preview image PV. FIG. 8A is a diagram illustrating a state in which the width guides 84A and 84B and the length guide 85A are aligned on the loaded paper P. FIG. FIG. 8B is a diagram illustrating a state where the pickup roller 11 </ b> C is feeding the paper P along the transport path L.

  The control unit 30 stores the image data input from the automatic document reading unit 120 or the personal computer PC in the storage unit 30A, and accepts an operation input from the operation panel 140 (S1, S2). Here, when the tray 82 is selected by an operation input, the control unit 30 enlarges or reduces the preview image PV to a size suitable for the selected paper size, and causes the liquid crystal display unit 83 to display the preview image PV. The control unit 30 causes the liquid crystal display unit 83 to display a preview image PV at a position where the paper P on the placement surface of the manual feed tray 82 is to be placed (see FIG. 7A) (S3, S4). Thereby, the position where the paper P is set can be easily grasped. The preview image PV is displayed so as to coincide with the state in which the image forming process is performed on the paper P placed on the manual feed tray 82.

  In the image forming apparatus 100, when performing double-sided printing on the paper P, the paper P discharged to the paper discharge tray 91 is set again on the manual feed tray 82 and image forming processing is performed. For this reason, when image forming processing is performed on both sides of the paper P, the paper P is placed on the manual feed tray 82 in alignment with the display of the preview image PV so that the longitudinal direction of the paper P is different from the surface of the paper P. It is possible to prevent the reverse on the back side.

  In the image forming apparatus 100 of the present embodiment, an example in which the image forming unit 110 performs image forming processing on the surface facing the manual feed tray 82, that is, the back surface side is described. However, the present invention is not limited to this. For example, an image forming apparatus that performs image forming processing on the front side of the paper P placed on the manual feed tray displays the direction of the preview image PV on the paper P in alignment with the direction of image forming processing. The same effects as those of the image forming apparatus 100 can be obtained.

  Further, as shown in FIG. 7B, when the paper P is placed on the manual feed tray 82, a paper detection sensor 84D disposed in the vicinity of the pickup roller 11C that feeds the paper P detects the leading edge of the paper P. Then, as shown in FIG. 8A, when the width guides 84A and 84B and the length guide 85A are moved to a position that coincides with the periphery of the paper P, the control unit 30 determines the size of the paper P and inputs the operation. It is determined whether or not the paper P of the paper size selected in (1) is placed (S5). When the paper P of the selected size is placed, the pickup roller 11C causes the paper P to be fed out along the transport path L as shown in FIG. 8B based on the start instruction of the operation panel 140. . The control unit 30 causes the image forming process to be performed on the fed paper P (S6, S7).

  In the first embodiment, an example in which the control unit 30 determines whether or not the size of the loaded paper P is the paper size selected by the operation input in step S5 has been described. However, the present invention is not limited to this. For example, in step S5, when the size of the loaded paper P is different from the size of the paper P selected by the operation input, a warning display may be displayed on the liquid crystal display unit 83. More specifically, the control unit 30 may cause the preview image PV displayed on the liquid crystal display unit 83 to blink for a predetermined time or display a warning message. As a result, it is possible to notify the user that the size of the loaded paper P is incorrect.

  In the first embodiment, an example in which the control unit 30 determines the size of the paper P in step S5 has been described. However, the present invention is not limited to the control unit that determines the size of the paper P. For example, the control unit 30 may not perform the process for determining the size of the paper P in step S5. More specifically, the control unit 30 may display the preview image PV on the liquid crystal display unit 83 (S4) and execute an image forming process based on a start instruction (S6, S7).

  In the first embodiment, as a suitable example of the present invention, an example in which the manual feed tray 82 includes width guides 84A and 84B and a length guide 85 is described. However, it is not an essential configuration of the present invention that the manual feed tray 82 includes the width guide 84A, the width guide 84B, and the length guide 85. For this reason, the manual feed tray 82 may not include any one or two of the width guides 84A and 84B and the length guide 85. The manual feed tray 82 may not include all of the width guides 84A and 84B and the length guide 85.

  In the first embodiment, as a preferred example of the present invention, the example in which the length in the longitudinal direction of the paper P is detected by the length guide 85A has been described. However, the present invention is not limited to this. For example, the length in the longitudinal direction of the paper P may be detected using a touch panel instead of the length guide 85A. The second embodiment in this case will be described as follows with respect to portions different from the first embodiment.

  FIG. 9 is a diagram illustrating a configuration in a top view around the manual feed tray 82 according to the second embodiment. FIG. 10 is a block diagram illustrating a configuration of control processing in the control unit 30.

  The touch panel 183 is a transparent sheet-like member that covers the upper surface of the liquid crystal display unit 83, and detects the position where the pressing force is applied when the pressing force is applied to the upper surface.

  The control unit 30 detects the position in the longitudinal direction of the paper P from the position detected by the touch panel 183.

  FIG. 11 is a flowchart showing a control flow in the control unit 30. FIG. 12 is a diagram illustrating a state in which the paper P is placed on the preview image PV displayed on the liquid crystal display unit 83 and the width guides 84A and 84B are moved to positions where they contact the paper P.

  Steps S11 to 14 are the same processing as steps S1 to S4, and step S16 is the same processing as step S8.

  In step S15, in the control unit 30, the paper detection sensor 84D detects the leading edge of the paper P placed on the manual feed tray 82. Further, the control unit 30 determines the width size of the paper P from the positions of the width guides 84A and 84B. Further, when either the rear end position RP or the rear end position LP, which is the rear end of the preview image PV, is pressed, the control unit 30 places the paper P having the paper size selected by the operation input. Is detected.

  In the present embodiment, in step S15, the control unit 30 is based on three positions, that is, the position of the width guide 84A, the position of the width guide 84B, and the position of the rear end position RP or the rear end position LP. An example of determining the paper size is described. However, the paper size determination method of the control unit 30 is not limited to this. For example, the control unit 30 may determine the paper size based on whether the rear end position RP and the rear end position LP are pressed. That is, when the rear end position RP and the rear end position LP are pressed, the control unit 30 determines that the paper P having the paper size selected by the operation input is placed, and proceeds to the process of step S16. It is also good. Further, as a simpler paper size determination method, for example, when either the rear end position RP or the rear end position LP is pressed, the control unit 30 places the paper P selected by the operation input. It may be determined that the image is present and the process proceeds to step S16. However, when the control unit 30 needs to accurately determine the paper size, it is more preferable to determine the paper size based on the above three positions as in the present embodiment.

  When the paper size selected by the operation input is placed on the manual feed tray 82, the control unit 30 causes the pickup roller 11C to feed the paper P along the transport path L and execute the image forming process ( S16). Accordingly, when the control unit 30 determines that the paper P selected by the operation input is placed, the image forming process can be executed without the user's start operation.

  In the second embodiment, an example is given in which the touch panel 183 is pressed to detect the rear end position of the paper P, and it is determined whether or not the paper P selected by the operation input is placed on the manual feed tray 82. Explains. However, the present invention is not limited to this. For example, the control unit 30 may cause the liquid crystal display unit 83 to display a change selection display for changing the size of the paper P selected on the operation panel 140 on the liquid crystal display unit 83 together with the preview image PV. When the change selection display is selected within the predetermined time, the size of the paper P may be switched as appropriate. More specifically, when a paper size switching operation is detected via the touch panel 183, the control unit 30 enlarges or reduces the preview image PV according to the changed paper size and causes the liquid crystal display unit 83 to display the preview image PV. .

  In the first and second embodiments, the preview image PV has been described by taking an example in which the preview image PV is created based on the image data of the document DP read by the automatic document reading unit 120 or image data transmitted from the personal computer PC. . However, the present invention is not limited to this. For example, the paper size of the paper P selected via the operation panel 140 may be displayed as the preview image PV. More specifically, as shown in FIG. 13A, it is conceivable to use a frame line having the same size as the size of the selected paper P as the preview image PV.

  When the punching process is performed on the paper P to be subjected to the image forming process via the operation panel 140, the hole position H where the punch hole is provided is displayed on the preview image PV as shown in FIG. It is also possible to make it happen. In this case, the position of the punching process can be confirmed by the preview image PV, and it is possible to prevent the front end and the rear end of the paper P from being placed on the manual feed tray 82 in the opposite direction.

  When a tabbed sheet is selected as the sheet P, a tab TA may be displayed as shown in FIG. In this case, the paper P can be prevented from being placed in the wrong direction by placing the paper P on the manual feed tray 82 so that the tab of the paper P matches the position of the tab TA. .

  Further, when the staple processing is selected, the staple ST may be further displayed on the preview image PV as shown in FIG. In this case, the position of the staple ST can be confirmed on the preview image PV.

  Note that the control unit 30 may combine the image data of the original paper DP with the preview image PV shown in FIGS. In this case, the same effect as that of the image forming apparatus 100 according to the above embodiment can be obtained.

  In the first and second embodiments, the control unit 30 has been described with an example in which the preview image PV is displayed on the liquid crystal display unit 83 when the tray 82 is selected by an operation input. However, the present invention is not limited to this. For example, the preview image PV may be displayed on the manual feed tray 82 when a paper P other than the paper size set in the paper feed cassettes 81A and 81B is selected. The third embodiment in this case will be described below with respect to portions different from the first embodiment.

  FIG. 14 is a flowchart showing a flow of control processing of the control unit 30.

  Step S21 is the same process as step S1, and step S24 is the same process as step S4.

  The control unit 30 determines whether or not the paper size selected via the operation panel 140 is the paper size set in the paper feed cassettes 81A and 81B (S22, S23). If a paper size not set in the paper cassettes 81A and 81B is selected, the preview image PV is displayed on the liquid crystal display unit 83 (S24), and an instruction to start image forming processing is input from the operation panel 140. Then, the image forming process is executed (S25, S26).

  In this case, when a paper size not set in the paper feed cassettes 81A and 81B is selected, a preview image PV is displayed to prompt the user to place the paper P on the manual feed tray 82. Can do.

  In the above embodiment, an example in which the liquid crystal display unit 83 displays the preview image PV at a position where the paper P of the manual feed tray 82 is placed has been described. However, the present invention is not limited to this. For example, a projector (projection display unit) 283 may be used instead of the liquid crystal display unit 83. The difference between the fourth embodiment in this case and the first embodiment will be described as follows.

  FIG. 15 is a diagram illustrating an overall configuration of the image forming apparatus 100 according to the fourth embodiment. In FIG. 15, the configuration around the manual feed tray 82 is illustrated with the width guides 84A and 84B and the length guide 85A removed. Further, the automatic document reading unit 120 is also shown in a removed state.

  The projector 283 is built in the side surface of the image forming apparatus 100 directly above the manual feed tray 82, and projects the preview image PV on the position where the paper P is placed on the manual feed tray 82. Thereby, the position where the paper P should be placed can be easily grasped. Further, since the preview image PV is hidden and cannot be seen even when the paper P is placed, there is an effect that it is easy to adjust the position where the paper P is to be placed.

  In addition, it should be thought that description of the above-mentioned embodiment is an illustration in all the points, Comprising: It is not restrictive. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

1 is a perspective view of an image forming apparatus according to an embodiment of the present invention. 1 is a diagram illustrating an overall configuration of an image forming apparatus. FIG. 5 is a diagram illustrating a configuration of a conveyance path around a manual feed tray. (A) is a figure which shows the structure in the side view of a manual feed tray. FIG. 6B is a diagram illustrating a configuration in a top view around the manual feed tray. It is a block diagram which shows the structure of the control process of a control part. It is a flowchart which shows the flow of control in a control part. (A) is a figure which shows the state in which the preview image is displayed on the liquid crystal display part. FIG. 6B is a diagram illustrating a state where a sheet is placed on the liquid crystal display unit. FIG. 8A is a diagram illustrating a state in which a width guide and a length guide are aligned on a sheet placed on a manual feed tray. (B) is a diagram showing a state in which the pickup roller is feeding the paper. It is a figure which shows the structure of the manual feed tray periphery in 2nd Embodiment. It is a figure which shows the flow of the control processing of the control part in 2nd Embodiment. It is a flowchart which shows the flow of the control processing of the control part in 2nd Embodiment. FIG. 10 is a diagram illustrating a state in which a sheet is placed on a preview image of a liquid crystal display unit and a width guide is moved to a position along a side edge of the sheet in the second embodiment. (A) is a diagram showing a state in which a border line of a selected paper size is displayed as a preview image. (B) is a figure which shows the state which displayed the hole position which provides a punch hole as a preview image. It is a flowchart which shows the flow of the control processing of the control part in 3rd Embodiment. It is a figure which shows the whole structure of the image forming apparatus in 4th Embodiment.

Explanation of symbols

30 Control unit 82 Manual feed tray 83 Liquid crystal display unit (display means)
100 Image forming apparatus (processing apparatus)
140 Operation panel (operation unit)
110 Image formation processing unit (image formation unit)
DP Original paper P Paper PV Preview image S Step

Claims (12)

An operation unit for accepting an operation for setting processing conditions for paper;
A processing unit that performs processing on the sheet based on the processing conditions input in the operation unit;
A manual feed tray on which paper to be fed is placed on the processing unit and the paper placement surface is exposed to the outside of the apparatus;
A control unit for creating an operation guidance image based on the setting operation;
Display means for displaying the operation guidance image on a paper placement surface of the manual feed tray;
A paper processing apparatus. The operation guidance image is an image that displays the state of the paper after processing in actual size,
The sheet processing apparatus according to claim 1. The display means displays the operation guide image at a position where the paper on the upper surface of the manual feed tray is to be placed.
The sheet processing apparatus according to claim 1. The manual feed tray further includes a touch panel for detecting a pressing force,
The control unit receives the setting operation via the touch panel;
The sheet processing apparatus according to any one of claims 1 to 3. The manual feed tray further includes guide means for guiding the loaded paper along the paper feeding direction.
The sheet processing apparatus according to any one of claims 1 to 4. The control unit further includes a detection unit that detects a position of the guide means,
The control unit causes the display unit to display a warning when the paper size determined from the position of the guide unit detected by the detection unit is different from the paper size selected by the setting operation.
The sheet processing apparatus according to claim 5. A paper feed tray for feeding paper to the processing unit;
The control unit displays the operation guidance image on the manual feed tray when receiving the setting operation for processing a sheet of a size not stored in the paper feed tray.
The sheet processing apparatus according to any one of claims 1 to 6. The display means is a liquid crystal display unit disposed on the manual feed tray.
The sheet processing apparatus according to any one of claims 1 to 7. The display means is a projection display unit that projects the operation guidance image onto the manual feed tray.
The sheet processing apparatus according to any one of claims 1 to 7. The sheet processing apparatus according to any one of claims 1 to 9,
An image forming unit that performs an image forming process on a sheet based on an image forming process condition that is the processing condition as the processing unit;
The control unit creates an image that displays a sheet state after the image forming process as an operation guide image.
Image forming apparatus. A post-processing unit that performs post-processing on the paper after the image formation processing;
The control unit creates an operation guide image including a post-processing condition for determining the content of the post-processing in the image forming processing condition;
The image forming apparatus according to claim 10. A document reading unit that reads the document;
The control unit creates the operation guide image including image data of a document read by the document reading unit;
The image forming apparatus according to claim 10 or 11.

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