JP2005308829A - Operation part display unit and image forming apparatus using the unit, and operation part display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation part display unit that makes it possible to easily set the size and type of recording paper used for copying, in a short period of time without a cost increase, and to provide an image forming apparatus using the operation display unit and an operation part display method. <P>SOLUTION: The operation part display unit of the image forming apparatus has: a copy display screen for a user to set a plurality of copying conditions; a setting screen for setting recording paper sizes for a plurality of paper feed trays and/or a setting screen for setting recording paper types. On the copy display screen, a display key 104 showing recording paper with a specific size and a specific direction and a prescribed paper feed tray storing the recording paper is depressed for a fixed length of time. This makes it possible to display, instead of the copy display screen, the recording paper size setting screen for setting the size of the recording paper stored in the paper feed tray indicated by the display key 104 depressed for the fixed length of time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an operation unit display device provided in an image forming apparatus provided with a plurality of paper feed trays each storing and holding a plurality of sizes of recording paper, an image forming apparatus using the same, and an operation unit display method.

  In general, an image forming apparatus such as a color copying machine or a printer includes a so-called universal paper feed tray (consisting of a plurality of paper feed trays) that can selectively store and hold a plurality of sizes of recording paper. ing. Then, the user can execute copying by setting a recording paper size desired to be copied on the operation panel. Here, how the color copying machine selects a recording sheet of a desired size from various recording sheets stored in a plurality of paper feed trays and performs copying will be described below. explain.

  For example, a color copying machine will be described as an example in which a paper feed tray is installed in three stages, ie, an upper stage, a middle stage, and a lower stage. In this color copying machine, A4 size recording paper is installed in the upper tray, A3 size recording paper is installed in the middle tray, and B5 size is installed in the lower tray. The size of the recording paper is determined based on the position where the paper feed tray is installed, and the paper tray containing the recording paper that matches the paper size set on the operation panel is selected by the user. Copying is executed using the recording paper stored in the selected paper feed tray.

  In other words, the color copier has a paper feed tray for storing A4 size recording paper at the top of the paper tray setting section of the color copier, and a paper feed tray for storing A3 size recording paper at the bottom. Has previously recorded information that a paper feed tray for storing B5-size recording paper is installed, and based on this information, a paper feed tray for storing recording paper of a paper size designated by the user is selected. However, copying is performed using recording paper of an appropriate size.

On the other hand, Japanese Patent Laid-Open No. 2004-151867 is a recording that is installed for each of a plurality of paper feed trays, detects the size of the recording paper stored in each paper feed tray, and notifies the image forming apparatus main body of information on the detected recording paper size. Techniques relating to paper size notification means are disclosed. The recording paper size notification means can detect the size of the recording paper stored in the paper feed tray (which is a specified size or a special size).
JP-A-10-95538

  However, when a user uses a color copying machine, the corresponding recording paper is not always stored in a predetermined paper feed tray. Copying using recording paper other than the recording paper of the predetermined paper size that should be originally stored in the predetermined paper feed tray due to various circumstances such as when you want to copy using out of paper or special size recording paper There is a case. Also, the type of recording paper used for copying may differ from special paper, recycled paper, tracing paper, and the like. For example, when a B5 size recording sheet is out of stock, etc., when you want to make a copy by putting A5 size recording paper in the B5 size dedicated paper tray, or put a special size recording paper in the B5 size dedicated paper tray When trying to make a copy.

  In these cases, the color copier does not store B5 size recording paper in the B5 size paper feed tray but stores recording paper other than B5 size that the user desires to copy. It is necessary to execute copying. For this purpose, information recorded in advance by the color copier (a B5-size dedicated paper feed tray is installed in the lower part of the machine, and the size of the recording paper stored in the paper feed tray is B5. Information) needs to be rewritten. This rewriting is performed by the user setting information on the size and / or type of the paper feed tray and the corresponding recording paper on the operation panel of the color copying machine. However, conventionally, there has been a problem that the operation method until the setting screen for performing this setting is displayed on the operation panel is complicated, difficult to remember, and takes time.

  Further, the recording paper size notification means disclosed in Patent Document 1 described above is used to detect the recording paper size stored in each paper feed tray, and information on the detected recording paper size is notified to the image forming apparatus main body. By doing so, it is also possible to adopt an apparatus configuration that performs appropriate copying regardless of the size of the recording paper stored in the paper feed tray. However, in this case, since it is necessary to install a recording paper size notification means for each paper feed tray, the cost increases, which is not preferable from the viewpoint of economy.

  The present invention has been made in view of the above problems, and the size and / or type of recording paper used for copying by a simple operation of touching a single display key for a long time on the setting screen of the operation unit display device in the image forming apparatus. Copying without increasing the cost of the device by providing a setting screen that allows you to easily set the size and / or type of recording paper stored in the paper feed tray used for copying It is an object of the present invention to provide an operation unit display device capable of easily and quickly setting the size and type of recording paper used for printing, an image forming apparatus using the same, and an operation unit display method.

  According to the first aspect of the present invention, there is provided a copy display screen for the user to set a plurality of copying conditions, a setting screen for setting the size of the recording paper for each of the plurality of paper feed trays, and / or recording. An operation unit display device having a setting screen for setting the type of paper, the recording paper having a predetermined size and orientation on the copy display screen, and a predetermined paper feed for storing the recording paper By pressing the display key indicating the tray for a predetermined time, the size of the recording paper stored in the predetermined paper feed tray indicated by the display key pressed for the predetermined time is set instead of the copy display screen. The operation unit display device displays a setting screen for setting the size of the recording paper.

  According to a second aspect of the present invention, the setting screen for setting the size of the recording paper includes a display key for setting a specified size such as A3 size and a special size other than the specified size. The operation unit display device is described.

  According to a third aspect of the present invention, the setting screen for setting the type of recording paper includes a display key for setting the type of recording paper such as recycled paper or tracing paper. The operation unit display device according to 2 is provided.

  According to a fourth aspect of the present invention, there is provided an image forming apparatus including the operation unit display device according to the first to third aspects.

  According to a fifth aspect of the present invention, there is provided a copy display screen for the user to set a plurality of copy conditions, a setting screen for setting the size of the recording paper for each of the plurality of paper feed trays, and / or recording. An operation unit display method of an operation unit display device comprising a setting screen for setting a paper type, wherein a recording sheet having a predetermined size and orientation and the recording sheet are stored on the copy display screen. By pressing a display key indicating a predetermined paper feed tray for a predetermined time, instead of the copy display screen, the recording paper stored in the predetermined paper feed tray indicated by the display key pressed for the predetermined time is displayed. The operation unit display method displays a setting screen for setting the size of the recording paper for setting the size.

  According to a sixth aspect of the present invention, the setting screen for setting the size of the recording paper displays a display key for setting a specified size such as A3 size and a special size other than the specified size. The operation unit display method is characterized by the following.

  According to a seventh aspect of the present invention, the setting screen for setting the type of recording paper displays a display key for setting the type of recording paper such as recycled paper or tracing paper. The operation unit display method described in the above item is characterized.

  According to the present invention, on the setting screen of the operation unit display device in the image forming apparatus, a setting screen for the size and / or type of recording paper used for copying is displayed by a simple operation of touching one display key for a long time. By providing a setting screen that can easily set the size and / or type of recording paper stored in the paper feed tray used for copying, the size and size of the recording paper used for copying can be reduced without increasing the cost of the apparatus. The type can be set easily and in a short time.

  The best mode for carrying out the present invention is to record on each of a copy display screen for a user to set a plurality of copying conditions and a plurality of paper feed trays in an operation unit display device of an image forming apparatus. A setting screen for setting the paper size and / or a setting screen for setting the type of recording paper is provided, and the recording paper having a predetermined size and orientation and the recording paper are stored on the copy display screen. By pressing the display key showing the predetermined paper feed tray for a certain period of time, instead of the copy display screen, the size of the recording paper stored in the predetermined paper feed tray indicated by the display key pressed for a certain period of time is set. A setting screen for setting the size of the recording paper to be displayed is displayed.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the examples described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise described, the present invention is not limited to these examples.

  FIG. 1 is a copy display screen in an operation unit display device provided in an image forming apparatus to which the present invention is applied. The user performs a copy operation by setting a desired copy condition on the copy display screen. As shown in FIG. 1, the copy display screen of this embodiment includes an original type key 101, a density key 102, a special original feed key 103, a recording paper size key 104, a scaling key 105, a sheet key 106, a stack key 107, A staple key 108, a punch key 109, a duplex / combine / split key 110, a cover / combine key 111, an edit key 112, a duplex / combine / split key 113, and a scaling key 114 are configured.

  The user presses the recording paper size key 104 on the copy display screen shown in FIG. 1, and selects and sets the size of the recording paper (including the orientation of the recording paper, except when automatic paper selection is set). Thus, the color copying machine determines the size of the recording paper that the user desires to copy. If the user selects automatic paper selection with the recording paper size key 104, the color copying machine uses a scanner or the like provided in the color copying machine regardless of the original size used for copying on the user's copy display screen. Is used to determine the size of the recording paper required for copying.

  By the way, conventionally, a color copying machine has a recording paper sheet designated by a user based on information on the paper size of the recording paper to be stored in a paper feed tray installed at each position in the machine. A paper feed tray that stores recording paper that matches the size is selected, and appropriate recording paper is taken out and copying is performed. That is, the setting related to the recording paper size on the copy display screen by the conventional user is to set the paper size of the recording paper necessary for copying and simultaneously feed the paper feed tray storing the recording paper of the set paper size. Was selected.

  With only the setting of the recording paper used for conventional copying as described above, as already described, for example, recording paper of different types such as out of paper, special size recording paper, recycled paper or tracing paper is used. When copying is to be performed, that is, when recording paper other than the predetermined recording paper to be stored in the paper feeding tray used for copying is stored in the paper feeding tray and copying is performed, the user sets the operation unit display device. A complicated key operation is performed on the screen to display a setting screen for changing information such as the paper feed tray previously recorded by the apparatus and the size and type of the corresponding recording paper. I had to make the necessary settings. Such a conventional copy condition setting method for recording paper has a problem that it takes a long time for key operation, and the key operation method is complicated and difficult to remember.

  In view of this, in the operation unit display device of the present embodiment, a setting screen for setting the size of recording paper stored in a plurality of paper feed trays provided in the image forming apparatus and a setting screen for setting the type of recording paper are newly provided. By providing, the conventional problem mentioned above is solved. These setting screens are provided for each paper feed tray, and one setting screen for setting the size of recording paper and one setting screen for setting the type of recording paper are provided for each paper feed tray. .

  FIG. 2 shows a setting screen for setting the size of the recording paper stored in the paper feed tray of this embodiment. The recording paper size setting screen shown in FIG. 2 includes a paper size display key 115, a cancel display key 116, a special paper display setting display key 117, and a setting key 118. This setting screen is configured to be displayed when the user keeps touching the recording paper size key 104 on the copy display screen shown in FIG. 1 for several seconds. Note that the setting screen for setting the recording paper size is a setting screen corresponding to the paper feed tray displayed on the recording paper size key 104 that the user keeps touching for several seconds. Further, when the cancel key 116 or the setting key 118 on the recording paper size setting screen shown in FIG. 2 is pressed, the display returns to the copy display screen shown in FIG.

  Next, FIG. 3 shows a setting screen for setting the type of recording paper stored in the paper feed tray of this embodiment. The setting screen for setting the type of recording paper shown in FIG. 3 includes a setting display key 119, a cancel display key 120, a paper size setting display key 121, and a setting display key 122. The setting screen for setting the type of recording paper is configured to be displayed by pressing a special paper display key 117 shown in FIG. Note that the setting screen for setting the type of recording paper is also a setting screen corresponding to the paper feed tray displayed on the recording paper size key 104 that the user has kept touching for several seconds. When the paper size setting key 121 shown in FIG. 3 is pressed, the recording paper size setting screen shown in FIG. 2 is displayed, and when the cancel key 120 or setting key 122 shown in FIG. 3 is pressed, the screen shown in FIG. It is configured to return to the display of the copy display screen.

  Next, a recording paper size and type setting method using the recording paper size setting screen and the setting screen for setting the recording paper type according to the present embodiment will be described below with reference to FIGS. . FIG. 4 is a flowchart showing an operation example of the recording paper size and type setting method in this embodiment. First, it is assumed that the copy display screen shown in FIG. 1 is displayed on the operation screen of the operation unit display device of the present embodiment. In step 1 shown in FIG. 4, the user performs copying on the copy display screen from among the recording paper size keys 104 on which the recording paper size (including the vertical and horizontal orientations of the paper) is displayed. The desired recording paper size key 104 is pressed. Subsequently, the process proceeds to step 2. In step 2, the operation unit display device notifies the image forming apparatus main body that copying is performed using the paper size and the paper feed tray selected by the user in step 1.

Subsequently, in step 3, the operation unit display device determines whether or not the recording paper size key 104 pressed by the user in step 1 is still touched after several seconds. If the operation unit display device determines in step 1 that the recording paper size key 104 pressed by the user has not been touched after a few seconds, the operation unit display device records and feeds the recording paper size desired by the user in step 1. Complete the setting operation only by setting the tray. Thereafter, copying is performed by a copying operation in the conventional image forming apparatus.
When the operation unit display device determines that the recording paper size key 104 pressed by the user in step 1 is still touched after several seconds, the operation unit display device moves to step 4 and the operation unit display device displays the operation screen on the operation screen. A setting screen for setting the recording paper size shown in FIG. 2 is displayed (step 4).

  Subsequently, in step 5, the user desires the paper feed tray designated by the user in step 1 on the setting screen for setting the recording paper size shown in FIG. 2 displayed on the operation screen of the operation unit display device. Check whether the paper size is already set. Of the paper size display keys 115 on the recording paper size setting screen shown in FIG. 2, the paper size indicated by the display key whose display key color is different from the others is the size of the recording paper already set. If the paper size desired by the user is not set, the user presses the paper size display key 115 on this setting screen to set the desired paper size. If the paper size desired by the user has already been set, the process proceeds to step 6 as it is.

  Next, in step 6, if the user does not need to set the type of recording paper (special paper, recycled paper, tracing paper) used for copying, the special paper on the recording paper size setting screen shown in FIG. Without touching the display setting key 117, the process proceeds to step 12, and the setting key 118 is pressed to finish the setting. By depressing this setting key 118, the screen returns to the display of the copy display screen shown in FIG. 1 from the displayed recording paper size setting screen (step 13). Then, copying is performed by a copying operation in the conventional image forming apparatus. If the user wishes to set the recording paper size again in step 12, the user returns to step 5 and continues the setting operation.

  Further, in Steps 5, 6, and 12, if it is desired to cancel the setting of the recording paper size set in Step 5, the cancel key 116 shown in FIG. 2 may be pressed, and if the cancel key 116 is pressed, FIG. The display returns to the copy display screen shown in FIG. 1 from the setting screen for setting the recording paper size shown in FIG. Thereafter, copying is performed by a copying operation in a conventional image forming apparatus.

  In step 6, if the user needs to set the type of recording paper used for copying, the user presses the special paper display setting key 117 on the recording paper size setting screen shown in FIG. When the special paper display setting key 117 is pressed, a setting screen for setting the type of recording paper as shown in FIG. 3 is displayed on the operation screen of the operation unit display device (step 7).

  Subsequently, in step 8, the user checks whether or not the type of recording paper used for copying has already been set on the setting screen for setting the type of recording paper shown in FIG. Among the setting display keys 119 on the recording paper type setting screen shown in FIG. 3, the paper type indicated by the display key whose display key color is different from the others is the type of recording paper that has already been set. . If the paper type desired by the user is not set, the user sets the desired paper type by pressing the setting display key 119 on this setting screen. If the paper type desired by the user has already been set, the process proceeds to step 9 as it is.

  In step 9, when the user desires to set again the size of the recording paper to be used for copying, the user presses the paper size setting key 121 on the screen for setting the type of recording paper shown in FIG. As a result, the recording paper size setting screen shown in FIG. 2 is displayed, and the process returns to step 4 where the user sets the recording paper size. The subsequent operation is the same as that already described.

  On the other hand, if it is determined in step 9 that the user does not wish to set the size of the recording paper that the user wants to copy, the process proceeds to step 10. In step 10, the user presses the setting key 122 on the setting screen for setting the type of recording paper shown in FIG. 3 to end the setting operation. When the setting key 122 is pressed, the operation screen of the operation unit display device of this embodiment returns from the setting screen for setting the type of recording paper shown in FIG. 3 to the display of the copy display screen shown in FIG. 11). Thereafter, copying is performed by a copying operation in a conventional image forming apparatus.

  Further, in steps 7 to 10, if it is desired to cancel the setting of the recording paper type set in step 8, the cancel key 120 shown in FIG. 3 may be pressed, and when the cancel key 120 is pressed, FIG. The display returns to the copy display screen shown in FIG. 1 from the setting screen for setting the type of recording paper shown in FIG. 1 (step 11). Thereafter, copying is performed by a copying operation in a conventional image forming apparatus.

  As described above, according to the present embodiment, the size and / or type of recording paper used for copying by a simple operation of touching one display key for a long time on the setting screen of the operation unit display device in the image forming apparatus. Copying without increasing the cost of the device by providing a setting screen that allows you to easily set the size and / or type of recording paper stored in the paper feed tray used for copying It is possible to easily and quickly set the size and type of the recording paper used for the recording.

  Next, the configuration and function of the image forming apparatus to which this embodiment is applied will be described below with reference to FIG. As shown in FIG. 5, this image forming apparatus is supplied from an external device via, for example, a copying function for copying an original image, a facsimile function for transmitting / receiving image data via a communication line, and an external I / F. An image forming apparatus having a printer function for printing based on image data, that is, a composite digital image forming apparatus (hereinafter abbreviated as an image forming apparatus) is configured.

  FIG. 5 is a cross-sectional view schematically showing the internal structure of the image forming apparatus. As shown in FIG. 5, an image forming apparatus to which the present embodiment is applied, for example, an electrophotographic digital image forming apparatus 50, includes an image reading unit that functions as a reading unit that reads an original image and generates image data. That is, it has a scanner unit 50a and an image forming unit that functions as an image forming unit that forms an image based on image data, that is, a printer unit 50b. Further, the image forming apparatus 50 includes an automatic document feeder 51 as a conveying unit above the scanner unit 50a. The image forming apparatus 50 is formed so as to be openable and closable with respect to a later-described document table or document table of the scanner unit 50a. The document D as an object is fed one by one toward the document table, and functions as a document pressing unit that brings the document D placed on the document table into close contact with the document table.

  The scanner unit 50 a is disposed at the top of the document table 52 made of transparent glass, facing the automatic document feeder 51 in a closed state and on which the document D is set, and one end of the document table 52. A document scale 53 indicating the position where the document D should be set on the document table 52 is also provided.

  Below the document table 52, an exposure lamp 54 that illuminates the document D placed on the document table 52, an auxiliary reflector 58 for condensing the light beam from the exposure lamp 54 on the document D, and the document D A first mirror 56 that bends the reflected beam from the left side in the figure is arranged. The exposure lamp 54, the auxiliary reflecting plate 58, and the first mirror 56 are fixed to the first carriage 57, and are arranged to be movable in parallel with the document table 52 as the first carriage 57 moves. The first carriage 57 is moved in parallel along the document table 52 by receiving a driving force of a pulse motor (not shown) via a toothed belt (not shown).

  A second carriage 59 is disposed on the left side of the document table 52 in the drawing, that is, in the direction in which the reflected beam reflected by the first mirror 56 is guided. In the second carriage 59, a second mirror 60 for bending the reflected beam from the document D guided by the first mirror 56 downward and a third mirror 61 for bending rightward in the drawing are arranged at right angles to each other. The second carriage 59 is driven by the first carriage 57 by a toothed belt (not shown) that drives the first carriage 57 and parallel to the first carriage 57 along the document table 52 at a speed of 1/2. Moved to.

  An imaging lens that forms an image of the reflected beam from the second carriage 59 at a predetermined magnification in a plane below the first carriage 57 and including the optical axis of the beam folded back through the second carriage 59. 62, and a line sensor 63 including a plurality of CCD image sensors for converting the reflected beam, which is focused by the imaging lens 62, into an electrical signal, that is, image data.

  Here, the direction in which the plurality of CCD image sensors in the line sensor 63 are arranged is the main scanning direction, and the direction in which the first carriage 57 and the second carriage 59 move is the sub-scanning direction. In the present embodiment, the reading device portion is a sheet-through type image reading system in which the scanner unit 50a is fixed and the automatic document feeder 51 reads an image while conveying the document.

  Next, the printer unit 50b will be described. The printer unit 50 b includes a photosensitive drum 12, a charging charger 13, developing units 14 and 15, a static elimination lamp (PTL) 17, a transfer charger 18, a separation charger 19, an eraser 20, a cleaning unit 21, It has a polygon mirror (laser light generator) 22 and an optical system (lens) 23, and performs image formation and output of image data stored in an image memory.

  That is, at the same time as the photosensitive drum 12 is rotated in the direction of the arrow, the residual toner and non-uniform potential adhering to the photosensitive drum 12 do not reach the charging charger 13 and the developing units 14 and 15, so QL) 16, a pre-transfer static elimination lamp (PTL) 17, a transfer charger 18, a separation charger 19, an eraser 20, and a cleaning unit 21, and the surface potential of the photosensitive drum 12 after passing through the static elimination lamp 16 is substantially equal. Try to be zero.

  Thereafter, the surface of the photosensitive drum 12 is uniformly charged by the charging charger 13, the image data stored in the image memory is read, and a laser beam is emitted from a semiconductor laser (not shown) accordingly. Laser light emitted from the semiconductor laser is incident on a polygon mirror (laser light generator) 22 that is condensed and rotated by a cylinder lens (not shown), and reflected light passes through an optical system (lens) 23 and a mirror 24. The surface of the photosensitive drum 12 is irradiated to form an electrostatic latent image.

  Next, the latent image formed on the photosensitive drum 12 is subjected to development with black toner after the charge of the non-image portion (unnecessary portion protruding from the image forming area) is removed by the eraser 20 or with the black toner. The color developing unit 15 that performs development with toner attaches toner to form a visible image. At this time, the density of the image can be adjusted by changing the developing bias potential.

  On the other hand, one of the calling roller 25 and the three paper supply rollers 26 is driven by turning on a paper supply clutch that can selectively take out the drive of a main motor (not shown) to a preselected paper supply stage (described later). The set recording paper is fed toward the stopped registration roller pair 27. A registration sensor 28 is disposed in front of the registration roller pair 27. The registration sensor 28 is, for example, a reflection type photosensor, and is turned on when the leading edge of the recording paper reaches the opposite position. Then, after a predetermined time has elapsed, the paper feeding clutch is returned to the OFF state, and the recording paper being conveyed is stopped.

  The timing for turning off the paper feed clutch is set longer than the time during which the recording paper is conveyed between the registration sensor 28 and the registration roller pair 27. Accordingly, the leading edge of the recording paper is abutted against the pair of registration rollers 27, and the recording paper stands by in a state where the leading edge is bent to prevent skew and the like. Thereafter, the registration clutch is turned on at a timing in accordance with the leading edge of the image on the photosensitive drum 12, and the registration roller pair 27 is driven to rotate, whereby the standby recording paper is conveyed again toward the transfer unit. .

  When the recording paper reaches the transfer portion, the toner image on the photosensitive drum 12 is transferred onto the paper surface by the action of the transfer charger 18, and then on the paper surface by the action of the separation charger 19 held integrally with the transfer charger 18. Then, the recording paper is separated from the surface of the photosensitive member by the separation claw 29.

  Next, the recording paper is fed to the fixing unit by the conveying belt 30 stretched by two rollers, and the toner image is thermally fixed by the fixing roller 31. After that, if the single-side mode is selected as the copy mode, the switching claw 32 By switching, the sheet is fed into the lower sheet refeeding conveyance path 33.

  The residual toner on the photosensitive drum 12 after the image transfer is removed by the cleaning brush 21a and the cleaning blade 21b constituting the cleaning unit 21 and recovered in the toner recovery tank 21c. The surface is exposed to the front by the charge eliminating lamp 16.

  By the way, this copying machine is equipped with three paper feed cassettes 34 to 36, each of which has a different size of recording paper, detachably attached as a normal paper feed cassette that can store only recording papers of a specific size. Also provided is a manual feed table (manual feed tray) 37 on which recording paper that is not stored in any paper feed cassette, that is, recording paper of an unspecified size can be set.

  When copying using recording paper stored in any of the paper cassettes 34 to 36, the cassette size is selected by a size selection key on an operation panel (not shown), and then the copy start key is pressed. Thus, the recording paper is fed from the paper feed cassette.

  Reference numerals 38a to 38c are size detection sensors for detecting the size of each storage sheet of each of the paper feed cassettes 34 to 36, and for example, five photo interrupters are used. In addition, a light-shielding plate for size identification (not shown) is attached to the front end of each of the paper feed cassettes 34 to 36. The light shielding plate has a notch that varies depending on the size of the recording paper to be stored in the cassette.

  When the paper feed cassettes 34 to 36 are mounted, the size detection sensors 38a to 38c are configured so that only the photo interrupter sandwiching the light shielding portion of the light shielding plate blocks the optical path. Can be output. The control unit is a CPU or the like. On the other hand, when copying using recording paper of an unspecified size, the manual feed table 37 is opened from the closed state indicated by the phantom line in the direction indicated by arrow A to the use state indicated by the solid line, and then the desired surface is displayed on the upper surface. By setting the recording paper and pressing the copy start key, the recording paper is fed from the manual feed table 37.

  When the manual feed table 37 is rotated in the opening direction, the bottom plate raising arm 39 that has lifted the recording paper placement bottom plate provided in the first paper feed cassette 34 is lowered in conjunction therewith. An open / close detection sensor (not shown) for detecting opening / closing of the manual feed table 37 is installed at a position facing the manual feed table 37 of the copying machine.

FIG. 6 is a diagram illustrating a copy display screen in the operation unit display device of the image forming apparatus according to the present exemplary embodiment. FIG. 6 is a diagram illustrating a setting screen for setting a paper size of a recording paper stored in each paper feed tray provided in the image forming apparatus in the operation unit display device according to the present exemplary embodiment. FIG. 6 is a diagram illustrating a setting screen for setting the type of recording paper stored in each paper feed tray provided in the image forming apparatus in the operation unit display device according to the present exemplary embodiment. 4 is a flowchart illustrating an operation example of a recording paper size and type setting method according to the present exemplary embodiment. 1 is a cross-sectional view schematically showing an internal structure of an image forming apparatus to which an embodiment is applied.

Explanation of symbols

101 Document Type Key 102 Density Key 103 Special Document Feed Key 104 Recording Paper Size Key 105 Scaling Key 106 Sheet Key 107 Stack Key 108 Staple Key 109 Punch Key 110 Duplex / Combine / Split Key 111 Cover / Combine Key 112 Edit Key 113 Duplex / Aggregation / split key 114 Scaling key 115 Recording paper size display key 116 Cancel display key 117 Special paper display setting display key 118 Setting display key 119 Setting display key 120 Cancel display key 121 Recording paper size setting display key 122 Setting display key

Claims (7)

A copy display screen for the user to set a plurality of copying conditions, a setting screen for setting the size of recording paper and / or a type of recording paper for each of a plurality of paper feed trays An operation unit display device comprising a setting screen,
On the copy display screen, by pressing a display key indicating a recording paper having a predetermined size and orientation and a predetermined paper feed tray in which the recording paper is stored for a predetermined time, instead of the copy display screen. And a setting screen for setting the size of the recording paper for setting the size of the recording paper stored in a predetermined paper feed tray indicated by the display key pressed for a predetermined time. .   2. The operation unit according to claim 1, wherein the setting screen for setting the size of the recording sheet includes a display key for setting a specified size such as A3 size and a special size other than the specified size. Display device.   The setting screen for setting the type of recording paper includes a display key for setting the type of recording paper such as recycled paper or tracing paper. Operation unit display device.   An image forming apparatus comprising the operation unit display device according to claim 1. A copy display screen for the user to set a plurality of copying conditions, a setting screen for setting the size of recording paper and / or a type of recording paper for each of a plurality of paper feed trays An operation unit display method of an operation unit display device comprising a setting screen,
On the copy display screen, by pressing a display key indicating a recording paper having a predetermined size and orientation and a predetermined paper feed tray in which the recording paper is stored for a predetermined time, instead of the copy display screen. And a setting screen for setting the size of the recording paper for setting the size of the recording paper stored in a predetermined paper feed tray indicated by the display key pressed for a predetermined time is displayed. .   6. The operation unit according to claim 5, wherein the setting screen for setting the size of the recording sheet displays a display key for setting a specified size such as A3 size and a special size other than the specified size. Display method.   7. The setting screen for setting the type of recording paper displays a display key for setting the type of recording paper such as recycled paper or tracing paper. Operation unit display method.

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