JP2012242748A - Display device, electronic apparatus having display device and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily understand correspondence relation between an actual object, an electronic apparatus, an image forming apparatus and their images displayed on a screen of a display device.SOLUTION: A control part 13 of an operation part 4 determines an eye direction corresponding to the direction of the screen of the display device 11 on the basis of a detection output of a direction sensor 16. Informed of opening/closing of an original paper conveyance part 2 or an opening/closing door 9 by a main control part 81 of the image forming apparatus 1, the control part 13 retrieves an image search table DT in a memory 14 to search for image data corresponding to the eye direction or an open state of the original paper conveyance part 2 or the opening/closing door 9 to read it, displays an image indicated by the image data on a screen 11a of the display device 11. Also, informed of a jam occurrence location or a position of a component in replacement time by the main control part 81 of the image forming apparatus 1, the control part 13 displays the occurrence location or the position on the image on the screen 11a of the display device 11, while marking it.

Description

  The present invention relates to a display device, an electronic apparatus including the display device, and an image forming apparatus.

  Some electronic devices and image forming apparatuses are provided with a display device that displays an operation state thereof, and some display devices are further improved in visibility and convenience. For example, in Patent Document 1, the screen orientation of the display device changes depending on whether the image forming apparatus is placed in a portrait orientation or a landscape orientation, so that a character string or the like is displayed on the display device screen in the portrait orientation. The character string or the like is displayed on the screen of the display device in the horizontal direction when it is in landscape orientation, so that the character string or the like is easy to read.

  In Patent Document 2, an operation unit having a display device is detachably provided in the image forming apparatus main body, and when a failure such as a jam occurs in the image forming apparatus, an instruction is given to prompt the user to move to the location where the failure has occurred. When the user removes the operation unit from the main body of the image forming apparatus and moves to the location of the failure, an instruction for prompting an operation for solving the failure is displayed on the screen of the operation unit display device. it's shown.

JP-A-6-320836 JP 2006-231675 A

  By the way, in an electronic device or an image forming apparatus, for example, when any failure occurs, it is preferable to display and notify the location where the failure has occurred in order to quickly resolve the failure. In general, an image showing a device or apparatus as viewed from the front is displayed on the screen of a display device of an electronic device or an image forming apparatus, and a failure occurrence point is marked on the image.

  However, in large electronic devices and image forming apparatuses, knowing the vertical position, horizontal position, and height position of a failure occurrence location can identify the failure occurrence location, and it is not possible to know their positions. In this case, it becomes difficult to specify the location of the failure. For this reason, even if a failure occurrence location is marked on an image showing such a device or apparatus viewed from the front, the failure occurrence location may not be accurately identified.

  For this reason, it is conceivable to switch and display each image showing the electronic device and the image forming apparatus as viewed from a plurality of directions on the screen of the display device, and to display the location of the failure in each image. In the case of these devices and apparatuses, it is difficult to understand the correspondence between the apparatuses and devices and their images, and it is not easy to specify the location of the failure.

  Further, in Patent Document 1, since the orientation of the character string or the like on the screen of the display device is only changed depending on whether the image forming apparatus is placed in the portrait orientation or the landscape orientation, such a failure occurs. The location cannot be identified. Or in patent document 2, although the instruction | indication which prompts the movement to a failure location is displayed on the screen of the display apparatus of an operation part, it is technical regarding the display of the vertical position of a failure occurrence location, a horizontal position, and a height position. No proposal has been made at all.

  Accordingly, the present invention has been made in view of the above-described conventional problems, and can switch and display each image showing the object, the electronic device, and the image forming apparatus when viewed from a plurality of directions, and can actually display the object. Display device capable of easily understanding the correspondence relationship between objects, electronic devices, image forming apparatuses and those images, and enabling accurate display of failure locations, etc., and electronic device including the display device, and An object is to provide an image forming apparatus.

  In order to solve the above-described problem, a display device of the present invention is a portable display device, which stores a storage unit that stores image data indicating an object, and a direction detection unit that detects a screen direction of the display device. And a visual line direction corresponding to the screen direction of the display device detected by the direction detection unit, and an image of the object when viewed in the visual line direction is obtained from image data in the storage unit and the display And a control unit for displaying on the screen of the apparatus.

  In such a display device of the present invention, the screen direction of the display device is detected, the line-of-sight direction corresponding to the detected screen direction is obtained, and the image of the object when viewed in this line-of-sight direction is stored in the storage unit. It is obtained from the image data and displayed on the screen of the display device. For example, when the screen direction of the display device (for example, the direction of the normal to the screen) is set in the horizontal direction in front of the object, the horizontal direction is obtained as the line-of-sight direction, and the image of the object when viewed in the horizontal direction ( For example, an image of the front of the object) is displayed on the screen of the display device. Further, when the screen direction of the display device is set to the vertically downward direction, the vertical downward direction is obtained as the line-of-sight direction, and the image of the object (for example, the image of the upper surface of the object) when viewed in the vertically downward direction is the screen of the display device Is displayed. Further, when the screen direction of the display device is rotated leftward or rightward, the leftward or rightward direction is obtained as the line-of-sight direction, and an image of the object when viewed in the leftward or rightward direction (for example, the side surface of the target) Are displayed on the screen of the display device. Therefore, when the screen direction of the display device is changed, the image of the object when viewed in this direction is displayed on the screen of the display device, and the correspondence between the actual object and the image can be easily understood. it can.

  According to another aspect of the present invention, there is provided an electronic device in which a display device is detachably provided in an electronic device body, a storage unit storing image data representing the electronic device, and a direction for detecting a screen direction of the display device. A gaze direction corresponding to the screen direction of the display device detected by the detection unit and the direction detection unit is obtained, and an image of the electronic device when viewed in the gaze direction is obtained from image data in the storage unit. And a control unit for displaying on the screen of the display device.

  In such an electronic device of the present invention, as in the display device of the present invention, when the screen direction of the display device is set in the horizontal direction in front of the electronic device, an image of the electronic device when viewed in the horizontal direction is obtained. It is displayed on the screen of the display device. Further, when the screen direction of the display device is vertically downward, an image of the electronic device when viewed in the vertical downward direction is displayed on the screen of the display device. Further, when the screen direction of the display device is rotated leftward or rightward, an image of the electronic device when viewed in the left-right direction is displayed on the screen of the display device. Therefore, when the screen direction of the display device is changed, the image of the electronic device viewed in this direction is displayed on the screen of the display device, and the correspondence between the actual electronic device and the image can be easily understood. it can.

  Furthermore, the image forming apparatus of the present invention is an image forming apparatus in which a display device is detachably provided on the main body of the image forming apparatus, the storage unit storing image data indicating the image forming apparatus, and the screen of the display device. A direction detection unit that detects the direction of the image, and a line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit, and the image of the image forming apparatus when viewed in the line-of-sight direction is stored in the memory A control unit that obtains the image data from the image data and displays it on the screen of the display device.

  In such an image forming apparatus of the present invention, as in the display apparatus of the present invention, when the screen direction of the display device is changed, the image of the image forming apparatus viewed in this direction is displayed on the screen of the display device. Thus, the correspondence between the actual image forming apparatus and the image can be easily understood.

  In the image forming apparatus of the present invention, the image data in the storage unit associates a plurality of line-of-sight directions with respect to the image forming apparatus and respective images of the image forming apparatus when viewed in each line-of-sight direction. When the control unit obtains the line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit, the image of the image forming apparatus corresponding to the line-of-sight direction is stored in the storage unit. Are retrieved from the image data and displayed on the screen of the display device.

  In this case, when the direction of the screen of the display device is changed, each line-of-sight direction is sequentially selected, and each image corresponding to each line-of-sight direction is sequentially switched and displayed on the screen of the display device.

  Furthermore, in the image forming apparatus of the present invention, the image data in the storage unit indicates a stereoscopic image of the image forming apparatus, and the control unit detects the screen of the display device detected by the direction detection unit. When the viewing direction corresponding to the viewing direction is obtained, an image of the image forming apparatus viewed in the viewing direction is generated from the image data in the storage unit and displayed on the screen of the display device.

  In this case, since the image of the image forming apparatus when viewed in the viewing direction can be generated based on the stereoscopic image of the image forming apparatus in any viewing direction, the screen direction of the display device (the viewing direction) Is changed, the image of the image forming apparatus is continuously changed as the line-of-sight direction is changed.

  Further, in the image forming apparatus of the present invention, the control unit obtains and initially sets an image of the image forming apparatus corresponding to a horizontal line-of-sight direction from image data in the storage unit, and sets the initially set image to the It is displayed on the screen of the display device.

  Here, the image of the image forming apparatus corresponding to the horizontal line-of-sight direction is initialized and displayed on the screen of the display device. For example, an initial setting image is displayed on a screen of a display device mounted on the image forming apparatus main body.

  Furthermore, in the image forming apparatus according to the present invention, the control unit obtains whether or not the screen direction of the display device detected by the direction detection unit is higher than 45 ° obliquely downward, and obliquely below 45. A horizontal line-of-sight direction is obtained as the screen direction of the display device when the display device is upwardly upward, and a vertical downward direction is obtained as the screen direction of the display device when the display device is not upward obliquely below 45 °.

  In this case, depending on whether the screen direction of the display device is obliquely upward or lower than 45 °, the image formed by the image forming apparatus viewed in the horizontal direction or the image formed when viewed in the vertical downward direction is displayed. An image of the device is displayed on the screen of the display device.

  In the image forming apparatus of the present invention, the image forming apparatus further includes a failure detection unit that detects a failure occurrence location of the image forming device, and the control unit stores an image of the image forming device corresponding to the line-of-sight direction in the storage unit. The failure location detected from the image data and detected by the failure detection unit is marked on the image, and this image is displayed on the screen of the display device.

  In this case, if the screen direction of the display device is changed, the image of the image forming device when viewed in this direction is displayed on the screen of the display device, and the location of the failure is marked on the image. Of the image forming apparatus when viewed in the vertical direction, the position of the fault on the image of the image forming apparatus when viewed in the vertical downward direction, and the image forming apparatus when viewed in the left or right direction. It is possible to know the location of failure on the image and to accurately identify the location of failure.

  In the image forming apparatus of the present invention, the image forming apparatus further includes a replacement part detecting unit that detects a part that is in the replacement period of the image forming apparatus, and the control unit displays the image of the image forming apparatus corresponding to the line-of-sight direction. A part obtained from the image data in the storage unit and detected by the replacement part detection unit is marked on the image, and this image is displayed on the screen of the display device.

  In this case, if the direction of the screen of the display device is changed, the image of the image forming apparatus when viewed in this direction is displayed on the screen of the display device, and the parts at the replacement time are marked on the image. The position of the part on the image of the image forming apparatus when viewed in the horizontal direction, the position of the part on the image of the image forming apparatus when viewed in the vertical downward direction, and the image formation when viewed in the left or right direction The position of the part on the image of the apparatus can be known, and the part at the time of replacement can be specified accurately.

  The image forming apparatus according to the present invention further includes a movable part detecting unit that detects a movable state of the movable part of the image forming apparatus, and the control unit displays the image of the image forming apparatus corresponding to the line-of-sight direction. The movable state of the movable part obtained from the image data in the storage unit and detected by the movable part detection unit is marked on the image, and this image is displayed on the screen of the display device.

  In this case, when the direction of the screen of the display device is changed, the image of the image forming apparatus when viewed in this direction is displayed on the screen of the display device, and the movable state of the movable part is marked on the image. The correspondence between the movable part of the image forming apparatus and the image can be easily understood.

  In the present invention as described above, the screen direction of the display device is detected, the line-of-sight direction corresponding to the detected screen direction is obtained, and the image of the object, electronic device, and image forming apparatus when viewed in this line-of-sight direction Is obtained from the image data in the storage unit and displayed on the screen of the display device. For example, when the direction of the screen of the display device (for example, the direction of the normal to the screen) is set to the horizontal direction in front of the object, the electronic device, or the image forming apparatus, the horizontal direction is obtained as the line-of-sight direction and the horizontal direction is viewed. The image of the target object, the electronic device, and the image forming apparatus is displayed on the screen of the display device. When the screen direction of the display device is vertically downward, the vertical downward direction is obtained as the line-of-sight direction, and the image of the object, the electronic device, and the image forming device when viewed in the vertical downward direction is displayed on the screen of the display device. Is displayed. Further, when the screen direction of the display device is rotated leftward or rightward, the leftward or rightward direction is obtained as the line-of-sight direction, and the object, electronic device, and image forming apparatus when viewed in the leftward or rightward direction Are displayed on the screen of the display device. Therefore, when the screen direction of the display device is changed, the image of the object, the electronic device, and the image forming apparatus viewed in this direction is displayed on the screen of the display device, and the actual object, electronic device, and image forming apparatus are displayed. And the correspondence between the image and the image can be easily understood.

1 is a perspective view showing an embodiment of an image forming apparatus of the present invention. FIG. 2 is a cross-sectional view illustrating the image forming apparatus in FIG. 1. FIG. 2 is a block diagram illustrating a configuration of the image forming apparatus in FIG. 1. It is a figure which shows notionally the image search table which matched the image data and the line-of-sight direction which show the image of an image forming apparatus. (A), (b), (c), and (d) are a front image of the appearance of the image forming apparatus, an internal front image, a front image when the paper transport device is opened, and when the open / close door is opened. It is a figure which illustrates a front image. (A), (b), (c) is a figure which illustrates the upper surface image of the external appearance of an image forming apparatus, the upper surface image when a paper conveying apparatus is opened, and the upper surface image when an open / close door is opened. (A), (b), (c) is a diagram illustrating a right side image of the appearance of the image forming apparatus, a right side image when the paper transport device is opened, and a right side image when the open / close door is opened. It is. (A), (b), (c) is a diagram illustrating a left side image of the appearance of the image forming apparatus, a left side image when the paper transport device is opened, and a left side image when the open / close door is opened. It is. (A), (b), (c) is the front view, top view, and right view which illustrate the definition of the gaze direction with respect to an image forming apparatus. (A), (b) is the figure which displayed by marking the location of the occurrence of a jam and the position of a part at the time of replacement on the front image of the appearance of the image forming apparatus. (A), (b) is the figure which displayed by marking the location of the occurrence of a jam and the position of the part at the time of replacement on the front image inside the image forming apparatus. (A), (b) is each figure which displayed the position of the part in the generation | occurrence | production location of jam and the part in replacement | exchange time on the upper surface image of the external appearance of an image forming apparatus. (A), (b) is each figure which displayed by marking the location of the occurrence of a jam and the position of parts at the time of replacement on the right side image of the appearance of the image forming apparatus. (A), (b) is each figure which displayed by marking the location of the occurrence of a jam and the position of the part at the time of replacement on the left side image of the appearance of the image forming apparatus. (A), (b), (c) is a front image of the appearance of the image forming apparatus when viewed from the front diagonally upward direction, a right side image when viewed from the right diagonally upward direction, and a left diagonally upward direction. It is a figure which illustrates the left side image when it sees.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an embodiment of an image forming apparatus of the present invention. The image forming apparatus 1 according to the present embodiment is a multifunction machine having a copying function, a facsimile function, a printer function, and a scanner function, and is located on the front side of a document sheet conveyance unit (ADF) 2, an image reading unit 3, and an image reading unit 3. An operation unit 4, a printing unit 5, a paper feeding unit 6, and the like provided along one side are provided.

  The operation unit 4 is detachably provided on the main body of the image forming apparatus 1 (the housing of the image reading unit 3). The operation unit 4 includes a display device 11 for displaying operation guidance and the like of the image forming apparatus 1 and an operation panel 12 for inputting instructions to the image forming apparatus 1 and the like. I support it. In addition, a transparent touch panel or the like is superimposed on the screen of the display device 11, and a fingertip input instruction for the screen is detected by the touch panel.

  Further, the paper feed unit 6 includes a paper feed cassette 28, and the paper feed cassette 28 can be pulled out to replenish the recording paper in the paper feed cassette 28 or push the paper feed cassette 28. Furthermore, an openable / closable door 9 is provided on the front side wall of the image forming apparatus 1, and the inside of the printing unit 5 can be exposed by opening the open / close door 9.

  In FIG. 1, the direction passing through the front and back of the image forming apparatus 1 is defined as the front-rear direction Y, the direction passing through the right side and the left side of the image forming apparatus 1 is defined as the left-right direction X, and the top surface of the image forming apparatus 1. A direction passing through the bottom surface is defined as a vertical direction Z.

  FIG. 2 is a cross-sectional view showing the image forming apparatus 1 of the present embodiment. As shown in FIG. 2, the printing unit 5 includes a laser exposure device 21, a developing device 22, a photosensitive drum 23, a photosensitive drum cleaning device 24, a charger 25, an intermediate transfer belt device 26, a fixing device 27, and a paper transport path S. And a paper discharge tray 29 and the like.

  The image data handled in the image forming apparatus 1 uses data corresponding to a color image using each color of black (K), cyan (C), magenta (M), yellow (Y), or a single color (for example, black). This is in accordance with the monochrome image. For this reason, four each of the developing device 22, the photosensitive drum 23, the photosensitive drum cleaning device 24, and the charger 25 are provided so as to form four types of toner images corresponding to the respective colors, each of which is black, Four image stations Pa, Pb, Pc, and Pd are configured in association with cyan, magenta, and yellow.

  Each photosensitive drum 23 has a photosensitive layer on the surface thereof. Each charger 25 is a charging means for uniformly charging the surface of each photoconductor drum 23 to a predetermined potential.

  The laser exposure device 21 is a laser scanning unit (LSU) provided with a laser diode and a reflection mirror, and exposes the surface of each charged photoconductive drum 23 according to image data, and corresponds to the image data on those surfaces. An electrostatic latent image is formed.

  Each developing device 22 develops the electrostatic latent image formed on the surface of each photosensitive drum 23 with toner of each color, and forms a toner image on the surface of these photosensitive drums 23. Each photoconductor drum cleaning device 24 removes and collects toner remaining on the surface of each photoconductor drum 23 after development and image transfer.

  The intermediate transfer belt device 26 is disposed above each photosensitive drum 23, and includes an intermediate transfer belt 31, an intermediate transfer belt driving roller 32, a driven roller 33, four intermediate transfer rollers 34, and an intermediate transfer belt cleaning device 35. It has.

  The intermediate transfer belt drive roller 32, the driven roller 33, each intermediate transfer roller 34, and the like stretch and support the intermediate transfer belt 31, and rotate the intermediate transfer belt 31 in the direction of arrow C. Each intermediate transfer roller 34 is rotatably supported in the vicinity of the intermediate transfer belt 31, and is pressed against each photosensitive drum 23 via the intermediate transfer belt 31.

  The toner images on the surfaces of the photosensitive drums 23 are sequentially transferred onto the intermediate transfer belt 31 to form color toner images (each color toner image) on the intermediate transfer belt 31. Transfer of the toner image from each photosensitive drum 23 to the intermediate transfer belt 31 is performed by each intermediate transfer roller 34 that is in pressure contact with the back surface of the intermediate transfer belt 31. A high voltage transfer bias (a high voltage having a polarity (+) opposite to the toner charging polarity (−)) is applied to each intermediate transfer roller 34 in order to transfer the toner image.

  In this way, the toner images on the surfaces of the respective photosensitive drums 23 are stacked on the intermediate transfer belt 31 to become a color toner image indicated by the image data. This color toner image is conveyed together with the intermediate transfer belt 31 and transferred onto the recording paper in the nip region between the intermediate transfer belt 31 and the transfer roller 36a of the secondary transfer device 36. The transfer roller 36a of the secondary transfer device 36 has a voltage (a high voltage having a polarity (+) opposite to the toner charging polarity (-)) for transferring the toner image of each color on the intermediate transfer belt 31 onto a recording sheet. Is applied.

  In addition, the toner image on the intermediate transfer belt 31 may not be completely transferred onto the recording paper by the secondary transfer device 36, and the toner may remain on the intermediate transfer belt 31. Causes color mixing. Therefore, the residual toner is removed and collected by the intermediate transfer belt cleaning device 35.

  The recording sheet is conveyed to the fixing device 27 after the color toner image is transferred in the nip region between the intermediate transfer belt 31 and the transfer roller 36 a of the secondary transfer device 36. The fixing device 27 includes a heating roller 41, a pressure roller 42, and the like, and sandwiches and conveys a recording sheet between the heating roller 41 and the pressure roller 42.

  The heating roller 41 is controlled so as to have a predetermined fixing temperature. By thermally pressing the recording paper together with the pressure roller 42, the color toner image transferred to the recording paper is melted, mixed, and pressed, Heat fixing to recording paper.

  On the other hand, the paper feed cassette 28 of the paper feed unit 6 is provided in the lower part of the image forming apparatus 1 and supplies the recording paper in the paper feed cassette 28. The manual feed tray 7 is a tray on which recording paper is placed, and is provided on the side wall of the image forming apparatus 1 to supply the recording paper in the tray.

  The printing unit 5 conveys an S-shaped sheet for feeding the recording sheet supplied from the sheet feeding cassette 28 or the manual feed tray 7 to the sheet discharge tray 29 via the secondary transfer device 36 and the fixing device 27. A path S is provided, and along the sheet transport path S, a sheet registration roller 44, a fixing device 27, a transport roller 45, a paper discharge roller 46, and the like are arranged.

  A paper pick-up roller 43 is provided at the end of the paper feed cassette 28, and the recording paper is pulled out from the paper feed cassette 28 one by one by the paper pick-up roller 43 and transported to the paper transport path S. Further, a pickup roller 8 is provided at the end of the manual feed tray 7, and the recording paper is pulled out from the manual feed tray 7 one by one by the pickup roller 8 and sent out to the paper transport path S.

  The conveyance rollers 45 are small rollers for promoting and assisting conveyance of the recording paper, and a plurality of sets are provided.

  The sheet registration roller 44 temporarily stops the recording sheet that has been conveyed, aligns the leading end of the recording sheet, and moves onto the intermediate transfer belt 31 in the nip region between the intermediate transfer belt 31 and the transfer roller 36a of the secondary transfer device 36. In order to transfer the color toner image onto the recording paper, the recording paper is conveyed in a timely manner in accordance with the rotation of each photosensitive drum 23 and the intermediate transfer belt 31.

  Further, the recording paper is fixed with a color toner image by the fixing device 27, passes through the fixing device 27, and is then discharged face down on the paper discharge tray 29 by the paper discharge roller 46.

  Next, the document paper transport unit 2 and the image reading unit 3 mounted on the upper part of the main body of the image forming apparatus 1 will be described. The original paper transport unit 2 is pivotally supported on the back side of the image reading unit 3 by a hinge (not shown), and is opened and closed by moving the front side up and down. When the document paper transport unit 2 is opened, the platen glass 54 of the image reading unit 3 is opened, and the document paper is placed on the platen glass 54.

  The image reading unit 3 includes a platen glass 54, a first scanning unit 55, a second scanning unit 56, an imaging lens 57, a CCD (Charge Coupled Device) 58, and the like. The first scanning unit 55 illuminates the surface of the original paper on the platen glass 54 with the light source 61 while moving in the sub-scanning direction by a distance corresponding to the size of the original paper, and the reflected light is reflected by the first reflecting mirror 62. Reflected and guided to the second scanning unit 56. The second scanning unit 56 follows the first scanning unit 55 and reflects the reflected light from the original paper by the second and third reflecting mirrors 63 and 64 and guides it to the imaging lens 57. The imaging lens 57 focuses the reflected light from the original paper on the CCD 58 and forms an image on the original paper surface on the CCD 58. The CCD 58 repeatedly scans the image on the surface of the original paper in the main scanning direction, and outputs an analog image signal of one main scanning line each time.

  Further, the image reading unit 3 can read not only a stationary document but also an image on the surface of the document sheet transported by the document sheet transport unit 2. In this case, as shown in FIG. 2, the first scanning unit 55 is moved to a reading position below the original reading glass 65, and the second scanning unit 56 is positioned in accordance with the position of the first scanning unit 55. Then, the document sheet conveyance unit 2 starts conveying the document sheet.

  In the manuscript paper conveyance unit 2, the pickup roller 66 is pressed against the manuscript paper on the manuscript tray 67 and rotated to pull out the manuscript paper, and the manuscript paper is conveyed through the paper conveyance path 68. The paper is passed between the reading glass 65 and the reading guide plate 69, and further conveyed from the paper discharge roller 71 to the document discharge tray 72.

  When transporting the original paper, the light source 61 of the first scanning unit 55 illuminates the original paper surface through the original reading glass 65, and the reflected light from the original paper is reflected by the first and second scanning units 55 and 56. The light is guided to the imaging lens 57 by the mirror, and the reflected light from the original paper is condensed on the CCD 58 by the imaging lens 57, and the image on the original paper surface is formed on the CCD 58, thereby reading the image on the original paper surface. .

  The original paper image read by the CCD 58 is output as an analog image signal from the CCD 58, and the analog image signal is A / D converted into a digital image signal. The digital image signal (image data) is subjected to various image processing and then input to the laser exposure device 21 of the image forming apparatus 1, and an image indicated by the image data is recorded on a recording sheet by the printing unit 5. This recording sheet is output.

  FIG. 3 is a block diagram illustrating a configuration of the image forming apparatus 1 of the present embodiment. In FIG. 3, a main control unit 81 includes a CPU, a RAM, a ROM, various interfaces, and the like, and includes a document sheet conveyance unit (ADF) 2, an image reading unit 3, an operation unit 4, a printing unit 5, a paper feeding unit 6, The memory 82 and the image processing unit 83 are controlled in an integrated manner. The memory 82 is a RAM, a ROM, a hard disk device (HDD) or the like, and stores various data and programs. The image processing unit 83 performs various types of image processing on the image data.

  The power supply unit 84 supplies power to the operation unit 4 when the operation unit 4 is attached to the main body of the image forming apparatus 1 as shown in FIG. The communication unit 85 performs data communication with the operation unit 4. The sensor group 86 detects a jam occurrence location (three-dimensional position in the XYZ directions in FIG. 1) when a jam occurs in the paper conveyance path S of the image forming apparatus 1, opens / closes the original paper conveyance unit 2, and images. For example, the opening / closing of the opening / closing door 9 on the front side wall of the forming apparatus 1 is detected.

  On the other hand, the operation unit 4 is detachably attached to the main body of the image forming apparatus 1 (the housing of the image reading unit 3), and includes a display device 11, an operation panel 12, a control unit 13, a memory 14, and a battery. 15, an orientation sensor 16, a communication unit 17, a charging unit 18, and the like.

  The display device 11 is, for example, a liquid crystal display device, and operation guidance of the image forming apparatus 1, an image of the image forming apparatus 1, and the like are displayed on the screen. The operation panel 12 has a plurality of operation keys, and an instruction to the image forming apparatus 1 can be input by operating each operation key.

  The control unit 13 includes a CPU, a RAM, a ROM, various interfaces, and the like, and controls the display device 11, the operation panel 12, the memory 14, the communication unit 17, and the like. The memory 14 is a RAM, a ROM, or the like, and stores various data and programs. For example, the memory 14 stores image data indicating an image displayed on the screen of the display device 11.

  The charging unit 18 is connected to the power supply unit 84 when the operation unit 4 is attached to the main body of the image forming apparatus 1, receives power supply from the power supply unit 84, and charges the battery 15. The battery 15 supplies power to each unit of the operation unit 4 to operate the operation unit 4.

  The direction sensor 16 is, for example, a gyro sensor, detects the screen direction of the display device 11 (the direction of the normal to the screen), and outputs a detection signal indicating the screen direction.

  The communication unit 17 performs data communication with the communication unit 85 of the image forming apparatus 1. The communication system of these communication units 17 and 85 is a short-range communication system that complies with, for example, Bluetooth (Bluetooth (registered trademark)) or a wireless LAN.

  In such a configuration, for example, the main control unit 81 causes the image reading unit 3 to read an image of the document, stores image data indicating the image of the document in the memory 82, and causes the image processing unit 83 to store the image data in the memory 82. The image data is processed, the image data is input to the laser exposure device 21 of the printing unit 5, and the sheet feeding unit 6 is controlled to feed recording paper from the sheet feeding unit 6 to the printing unit 5. In step 5, the image of the document indicated by the image data is recorded on the recording paper.

  By the way, in the image forming apparatus 1 of the present embodiment, the image is displayed when the image display of the image forming apparatus 1 is necessary regardless of whether the operation unit 4 is attached to or removed from the main body of the image forming apparatus 1. It is displayed on the screen of the display device 11 of the operation unit 4.

  When the user removes the operation unit 4 from the main body of the image forming apparatus 1, the user changes the screen direction of the display device 11 of the operation unit 4 and the image of the image forming apparatus 1 when viewed in this direction. Can be displayed on the screen of the display device 11. For example, when the screen direction of the display device 11 (for example, the direction of the normal to the screen) is set in the horizontal direction in front of the image forming apparatus 1, the front image of the image forming apparatus 1 when viewed in the horizontal direction (line-of-sight direction). Is displayed on the screen of the display device 11. Further, when the screen direction of the display device 11 is set to the vertically downward direction, the upper surface image of the image forming apparatus 1 when viewed in the vertically downward direction (the line-of-sight direction) is displayed on the screen of the display device 11. Further, when the screen direction of the display device 11 is rotated leftward or rightward, a side image of the image forming device 1 when viewed in the leftward direction or the rightward direction (line-of-sight direction) is displayed on the screen of the display device 11. The Accordingly, when the screen direction of the display device 11 is changed, the image of the image forming apparatus 1 viewed in this direction is displayed on the screen of the display device 11, and the correspondence between the actual image forming apparatus 1 and the image is changed. Easy to understand.

  Further, when a failure such as a jam occurs, the location of the failure is detected, and the location of the failure is displayed on the image of the image forming apparatus 1 displayed on the screen of the display device 11. Further, when the parts of the image forming apparatus 1 are replaced, the positions of the parts at the replacement time are displayed on the image of the image forming apparatus 1 displayed on the screen of the display device 11. Alternatively, when the movable part of the image forming apparatus 1 is moved, the movable state of the movable part is displayed on the image of the image forming apparatus 1 displayed on the screen of the display device 11. Such failure location, the position of the part at the time of replacement, and the movable state of the movable part are images when viewed in that direction (line-of-sight direction) regardless of how the screen orientation of the display device 11 is changed. It is displayed on the image of the forming apparatus 1. Therefore, while changing the orientation of the screen of the display device 11, the failure location displayed on the image of the image forming apparatus 1, the position of the part at the time of replacement, and the movable state of the movable part can be checked. It is possible to specify the location of the occurrence part and the part position at the time of replacement, and to know the movable state of the movable part accurately.

  Next, display control of the display device 11 that displays the image of the image forming apparatus 1 will be described in detail.

  Here, in the memory 14 of the operation unit 4, an image search table in which a plurality of line-of-sight directions and image data indicating respective images of the image forming apparatus 1 when viewed in these line-of-sight directions are associated and recorded. Is recorded in advance. FIG. 4 illustrates an image search table. In the image search table DT of FIG. 4, each of the image data D1a, D1b, D1c, D1d,... Line of sight) H1 and the image data D2a, D2b, D2c,. Line-of-sight direction) H2, and image data D3a, D3b, D3c,... And right horizontal direction (when the image forming apparatus 1 is viewed from the right side in the horizontal direction) Line-of-sight direction) H3, and image data D4a, D4b, D4c,... And left horizontal direction (when the image forming apparatus 1 is viewed in the horizontal direction from the left side) Line of sight Direction) H4 and is associated with.

  For any of the front image, top image, right side image, and left side image, a plurality of types representing the appearance of the image forming apparatus 1, the inside of the image forming apparatus 1, the movable state of the movable portion of the image forming apparatus 1, and the like. An image is set.

  For example, each of the image data D1a, D1b, D1c, and D1d includes a front image of the appearance of the image forming apparatus 1, a front image of the inside of the image forming apparatus 1, and an appearance of the image forming apparatus 1 when the document sheet conveyance unit 2 is opened. The front image of the image forming apparatus 1 when the open / close door 9 is opened is shown. FIGS. 5A, 5B, 5C, and 5D show an external front image G1a indicated by the image data D1a, an internal front image G1b indicated by the image data D1b, and a document indicated by the image data D1c. The front image G1c when the paper transport unit 2 is opened and the front image G1d when the open / close door 9 indicated by the image data D1d is opened are illustrated.

  Each of the image data D2a, D2b, and D2c includes a top image of the appearance of the image forming apparatus 1, a top image of the appearance of the image forming apparatus 1 when the document sheet conveyance unit 2 is opened, and the opening and closing door 9 being opened. 2 shows an upper surface image of the appearance of the image forming apparatus 1 of FIG. FIGS. 6A, 6B, and 6C show an upper surface image G2a having an appearance indicated by the image data D2a, an upper surface image G2b when the original paper transport unit 2 indicated by the image data D2b is opened, and the image data. The upper surface image G2c when opening and closing the door 9 indicated by D2c is illustrated.

  Further, each of the image data D3a, D3b, and D3c includes the right side image of the appearance of the image forming apparatus 1, the right side image of the appearance of the image forming apparatus 1 when the document sheet transport unit 2 is opened, and the open / close door 9. The right side image of the external appearance of the image forming apparatus 1 is shown. FIGS. 7A, 7B, and 7C show the right side image G3a of the appearance indicated by the image data D3a, the right side image G3b when the original paper transport unit 2 indicated by the image data D3b is opened, and The right side image G3c when opening and closing the door 9 indicated by the image data D3c is illustrated.

  Further, the image data D4a, D4b, and D4c are respectively the left side image of the appearance of the image forming apparatus 1, the left side image of the appearance of the image forming apparatus 1 when the document paper transport unit 2 is opened, and the open / close door 9. The left side image of the external appearance of the image forming apparatus 1 is shown. FIGS. 8A, 8B, and 8C show the left side image G4a of the appearance indicated by the image data D4a, the left side image G4b when the original paper transport unit 2 indicated by the image data D4b is opened, and The left side image G4c when the open / close door 9 indicated by the image data D4c is opened is illustrated.

  5 to 8 show only the image of the image forming apparatus 1, the operation key detected by the touch panel superimposed on this screen is also displayed on the screen of the display device 11. Also, the image portion of the original paper transport unit 2 is denoted by the same symbol 2, the image portion of the image reading unit 3 is denoted by the same symbol 3, and the image portion of the open / close door 9 is denoted by the same symbol 9. The image portion of the photosensitive drum 23 is denoted by the same reference numeral 23.

  FIGS. 9A, 9 </ b> B, and 9 </ b> C are a front view, a top view, and a right side view illustrating a setting example of the line-of-sight direction with respect to the image forming apparatus 1. As shown in FIGS. 9A, 9B, and 9C, the front horizontal direction (line-of-sight direction) H1 is up to 45 ° in both the vertical direction Z and the horizontal direction X with respect to the horizontal line in the front-rear direction Y. Corresponds to the angle range α (including 45 °). The vertical downward direction (line-of-sight direction) H2 corresponds to an angle range β of less than 45 ° in both the front-rear direction Y and the left-right direction X with respect to the vertical line in the up-down direction Z. Further, the right horizontal direction (line-of-sight direction) H3 corresponds to an angle range γ of less than 45 ° in both the vertical direction Z and the front-rear direction Y with respect to the horizontal line in the left-right direction X. Similarly, the left horizontal direction (gaze direction) H4 corresponds to an angle range κ of less than 45 ° in both the vertical direction Z and the front-rear direction Y with respect to the horizontal line in the left-right direction X.

  Next, the display control procedure of the display device 11 by the control unit 13 of the operation unit 4 will be described in detail. First, assuming that the operation unit 4 is attached to the main body of the image forming apparatus 1, the charging unit 18 of the operation unit 4 is supplied with power from the power supply unit 84 of the image forming apparatus 1. At this time, the control unit 13 of the operation unit 4 receives power from the charging unit 18, that is, the operation unit 4 is mounted on the main body of the image forming apparatus 1. The image search table DT is searched, the default image data D1a is read out from the image data D1a, D1b, D1c, D1d corresponding to the front horizontal direction H1, and the image data D1a shown in FIG. The front image G1a of the appearance is displayed on the screen 11a of the display device 11.

  In this state, when a jam occurs in the sheet conveyance path S of the image forming apparatus 1, the sensor group 86 detects a jam occurrence location (three-dimensional position in the XYZ directions in FIG. 1), and in response thereto, the image forming apparatus. 1 main control unit 81 transmits a jam occurrence location from communication unit 85 to communication unit 17 of operation unit 4. In the operation unit 4, a jam occurrence location is received by the communication unit 17 and notified to the control unit 13. When the control unit 13 receives the notification of the jam occurrence location, the control unit 13 obtains the two-dimensional position in the XZ direction from the three-dimensional position in the XYZ direction, which is the jam occurrence location, and displays the front image of the appearance as shown in FIG. A jam occurrence location Q1 (two-dimensional position in the XZ direction) is marked and displayed on G1a, and a message M1 indicating the occurrence of jam is displayed.

  Further, the main control unit 81 of the image forming apparatus 1 measures the accumulated operation time of each photoconductor drum 23, and when the accumulated operation time reaches a certain time, the accumulated operation time becomes constant. It is determined that the photosensitive drum 23 that has reached the time is in the replacement period, and the position (three-dimensional position in the XYZ directions in FIG. 1) of the photosensitive drum 23 in the replacement period is changed from the communication unit 85 to the communication unit 17 of the operation unit 4. Send to. In the operation unit 4, the position of the photosensitive drum 23 at the replacement time is received by the communication unit 17 and notified to the control unit 13. Upon receiving the notification of the position of the photosensitive drum 23 at the replacement time, the control unit 13 obtains the two-dimensional position in the XZ direction from the three-dimensional position in the XYZ direction indicating the position of the photosensitive drum 23, and FIG. As shown in FIG. 4, the position Q2 (two-dimensional position in the XZ direction) of the photosensitive drum 23 at the replacement time is marked and displayed on the front image G1a of the appearance, and a message M2 indicating that the photosensitive drum 23 is to be replaced is displayed. indicate.

  Thus, in the state where the jam occurrence point Q1 and the position Q2 of the photosensitive drum 23 at the replacement time are displayed on the front image G1a, the front side of the image forming apparatus 1 is used to eliminate the jam and replace the photosensitive drum 23. When the side door opening / closing door 9 is opened, the sensor group 86 detects that the opening / closing door 9 has been opened, and in response to this, the main controller 81 of the image forming apparatus 1 indicates that the opening / closing door 9 has been opened. Is transmitted from the communication unit 85 to the communication unit 17 of the operation unit 4. In the operation unit 4, the communication unit 17 receives that the document sheet transport unit 2 has been opened, and notifies the control unit 13 of it. When the control unit 13 receives a notification that the open / close door 9 is opened, the control unit 13 searches the image search table DT in the memory 14 and stores the image data D1a, D1b, D1c, D1d corresponding to the front horizontal direction H1. Image data D1d indicating the appearance when the open / close door 9 is opened is read out, and the front image G1d having the appearance shown in FIG. 5D indicated by the image data D1d is displayed on the screen 11a of the display device 11 for a certain period of time.

  Subsequently, the control unit 13 searches the image search table DT in the memory 14 and displays an image showing the inside of the image forming apparatus 1 from among the image data D1a, D1b, D1c, and D1d corresponding to the front horizontal direction H1. The data D1b is read, and the front image G1b in FIG. 5B indicated by the image data D1b is displayed on the screen 11a of the display device 11. Further, as shown in FIGS. 11A and 11B, the control unit 13 marks and displays the jam occurrence location Q1 (two-dimensional position in the XZ direction) on the internal front image G1b, and the occurrence of the jam occurs. A message M1 indicating the effect is displayed, or the position Q2 (two-dimensional position in the XZ direction) of the photosensitive drum 23 at the replacement time is marked and displayed on the internal front image G1b, and the replacement of the photosensitive drum 23 is performed. Display a message M2 indicating the effect.

  When the jam is eliminated or the photosensitive drum 23 at the replacement time is replaced, the front image G1a having the appearance shown in FIG. 5A is displayed again on the screen 11a of the display device 11.

  In addition, when the document sheet conveying unit 2 of the image forming apparatus 1 is opened and the sensor group 86 detects that the document sheet conveying unit 2 is opened, the main control unit 81 of the image forming apparatus 1 responds to this detection. Transmits from the communication unit 85 to the communication unit 17 of the operation unit 4 that the document sheet conveying unit 2 has been opened. In the operation unit 4, the communication unit 17 receives that the document sheet transport unit 2 has been opened, and notifies the control unit 13 of it. When the control unit 13 receives a notification that the document sheet transport unit 2 has been opened, the control unit 13 searches the image search table DT in the memory 14 and sets the image data D1a, D1b, D1c, corresponding to the front horizontal direction H1. The image data D1c showing the appearance when the original paper transport unit 2 is opened is read out of D1d, and the front image G1c having the appearance shown in FIG. 5C shown by the image data D1c is displayed on the screen 11a of the display device 11. . On the appearance front image G1c, a jam occurrence location Q1 (two-dimensional position in the XZ direction) and a position Q2 (two-dimensional position in the XZ direction) of the photosensitive drum 23 at the replacement time may be displayed.

  When the document paper transport unit 2 is closed, the front image G1a having the appearance shown in FIG. 5A is displayed again on the screen 11a of the display device 11.

  Thus, in a state where the operation unit 4 is mounted on the main body of the image forming apparatus 1, a front image G <b> 1 a of an appearance when the image forming apparatus 1 is viewed in the horizontal direction from the front is initialized and the display device 11 is initialized. It is displayed on the screen 11a. When the open / close door 9 on the front side wall of the image forming apparatus 1 is opened, the front image G1d of the appearance when the open / close door 9 is opened is displayed for a certain time, and the internal front image G1b is subsequently displayed. Further, when a jam occurs or the photosensitive drum 23 is at the replacement time, a jam occurrence point Q1 (two-dimensional position in the XZ direction) on the front images G1a and G1b and the photosensitive drum 23 at the replacement time are replaced. A position Q2 (two-dimensional position in the XZ direction) is displayed. Further, when the original paper transport unit 2 of the image forming apparatus 1 is opened, a front image G1c having an appearance when the original paper transport unit 2 is opened is displayed.

  Next, when the operation unit 4 is detached from the main body of the image forming apparatus 1, the charging unit 18 of the operation unit 4 does not receive power supply from the power supply unit 84 of the image forming apparatus 1. The control unit 13 of the operation unit 4 starts processing for obtaining the screen direction of the display device 11 based on the detection output of the direction sensor 16.

  In a state where the operation unit 4 described above is mounted on the main body of the image forming apparatus 1, the screen direction of the display unit 11 of the operation unit 4 (the direction of the normal to the screen) is a fixed direction. When the user removes and operates the operation unit 4, the direction of the screen of the display unit 11 of the operation unit 4 (the direction of the normal to the screen) changes at any time and is detected by the direction sensor 16 accordingly. The direction changes from time to time. For this reason, the control unit 13 of the operation unit 4 is based on a certain direction of the screen of the display device 11 of the operation unit 4 when mounted on the main body of the image forming apparatus 1 and the direction detected by the direction sensor 16. Thus, the screen direction of the display device 11 can be obtained at any time.

  Further, when the user wants to see the image in front of the image forming apparatus 1, the direction of the screen of the display device 11 of the operation unit 4 on the front of the image forming apparatus 1 is set as shown in FIGS. It is made to face generally in the front horizontal direction H1. Alternatively, when the user wants to see the image on the upper surface of the image forming apparatus 1, the direction of the screen of the display device 11 of the operation unit 4 is generally oriented in the vertical downward direction H <b> 2 in FIGS. 9A to 9C. To. Further, when the user wants to see the image on the right side of the image forming apparatus 1, the user moves to the right side of the image forming apparatus 1 and changes the screen direction of the display device 11 of the operation unit 4 from FIG. In general, it is directed in the right horizontal direction H3 of (c). Furthermore, when the user wants to see the image on the left side of the image forming apparatus 1, the user moves to the left side of the image forming apparatus 1, and changes the screen direction of the display device 11 of the operation unit 4 from FIG. (C) It is made to face substantially in the left horizontal direction H4.

  Here, if the user operates the operation unit 4 in front of the image forming apparatus 1 and the screen direction of the display device 11 is substantially directed to the front horizontal direction H1 in FIGS. 4 determines the direction of the screen of the display device 11 based on the detection output of the direction sensor 16, determines that the direction of the screen is within an angle range α centered on the front horizontal direction H1, and the line of sight The direction is considered to be the front horizontal direction H1. Then, the control unit 13 searches the image search table DT in the memory 14, reads the image data D1a corresponding to the front horizontal direction H1, and displays the front image G1a having the appearance of FIG. 5A indicated by the image data D1a. Is displayed on the screen 11 a of the display device 11.

  For this reason, when the user substantially faces the screen of the display device 11 of the operation unit 4 in the front horizontal direction H1 in front of the image forming apparatus 1, the front of the actual image forming apparatus 1 and the display device 11 are displayed. It can be compared with the front image G1a of the appearance shown in FIG. 5A displayed on the screen 11a.

  However, a front image displayed when the screen of the display device 11 is directed to the front horizontal direction H1 and a front image displayed when the operation unit 4 is mounted on the main body of the image forming apparatus 1 are displayed. Are the same. Therefore, if the operation unit 4 is removed and the direction of the screen is immediately directed to the angle range α, the same front image is continuously displayed.

  Further, in a state where the screen direction of the display device 11 is directed to the angle range α, a jam occurs in the paper transport path S of the image forming apparatus 1, or a part of the image forming apparatus 1 comes to a replacement time. Then, as in the case where the operation unit 4 is mounted on the main body of the image forming apparatus 1, a jam occurrence location (three-dimensional position in the XYZ directions in FIG. 1) is detected by the image forming apparatus 1 and the operation unit 4 is detected. As shown in FIG. 10A, a jam occurrence location Q1 (two-dimensional position in the XZ direction) and a message M1 indicating the occurrence of jam are displayed on the front image G1a of the appearance, or FIG. ), A part position Q2 (two-dimensional position in the XZ direction) at the time of replacement and a message M2 indicating the replacement of the part are displayed on the front image G1a of the appearance.

  Then, the opening / closing door 9 on the front side wall of the image forming apparatus 1 is opened in order to eliminate the jam and replace the photosensitive drum 23 with the screen direction of the display device 11 being directed to the angle range α. 5D, the front image G1d having the appearance shown in FIG. 5D is displayed on the screen 11a of the display device 11 for a certain period of time as in the case where the operation unit 4 is mounted on the main body of the image forming apparatus 1. The front image G1b in FIG. 5B is displayed on the screen 11a of the display device 11. Further, as shown in FIGS. 11A and 11B, the jam occurrence point Q1 (XZ direction) on the internal front image G1b. 2) and a message M1 indicating the occurrence of a jam, or the position Q2 (two-dimensional position in the XZ direction) of the photosensitive drum 23 and the photosensitive drum 23 at the replacement time on the internal front image G1b. To exchange A message M2 is or is displayed.

  Further, when the original paper transport unit 2 of the image forming apparatus 1 is opened with the screen direction of the display device 11 being directed to the angle range α, the operation unit 4 is attached to the main body of the image forming apparatus 1. As in the case of the display, the front image G1c having the appearance shown in FIG. 5C is displayed on the screen 11a of the display device 11. On the appearance front image G1c, a jam occurrence location Q1 (two-dimensional position in the XZ direction) and a position Q2 (two-dimensional position in the XZ direction) of the photosensitive drum 23 at the replacement time may be displayed.

  When the jam is eliminated or the photosensitive drum 23 at the replacement time is replaced, the front image G1a having the appearance shown in FIG. 5A is displayed again on the screen 11a of the display device 11. Also, when the document sheet transport unit 2 is closed, the front image G1a having the appearance shown in FIG. 5A is displayed again on the screen 11a of the display device 11.

  Next, assuming that the screen direction of the display device 11 is generally oriented in the vertical downward direction H2 of FIGS. 9A to 9C, the control unit 13 of the operation unit 4 displays based on the detection output of the direction sensor 16. It is determined that the screen direction of the apparatus 11 is in the angle range β centered on the vertical downward direction H2, and the line-of-sight direction is regarded as the vertical downward direction H2, and the image search table DT in the memory 14 is searched. The image data D2a indicating the top image of the appearance of the image forming apparatus 1 is read out from the image data D2a, D2b, and D2c corresponding to the vertical downward direction H2, and the appearance of FIG. 6A indicated by the image data D2a is read. The upper surface image G2a is displayed on the screen 11a of the display device 11. Accordingly, when the user orients the screen of the display device 11 of the operation unit 4 substantially in the vertical downward direction H2, the user sees the top image G2a having the appearance shown in FIG. 6A displayed on the screen 11a of the display device 11. be able to.

  Further, in a state where the screen direction of the display device 11 is directed to the angle range β, a jam occurs in the paper transport path S of the image forming apparatus 1 or parts of the image forming apparatus 1 come to be replaced. Then, the location of the jam and the position of the part at the time of replacement (three-dimensional position in the XYZ directions in FIG. 1) are transmitted and received from the communication unit 85 of the image forming apparatus 1 to the communication unit 17 of the operation unit 4. Will be notified. Upon receiving the notification, the control unit 13 obtains the two-dimensional position in the XY direction from the three-dimensional position in the XYZ direction indicating the location where the jam has occurred and the position of the component at the replacement time, and FIGS. As shown in Fig. 3, the appearance Q1 (two-dimensional position in the XY direction) of the jam is displayed and displayed on the top image G2a of the appearance, and a message M1 indicating the occurrence of jam is displayed or exchanged on the top image G2a. The position Q2 (two-dimensional position in the XY direction) of the photosensitive drum 23 at the time is marked and displayed, and a message M2 indicating that the photosensitive drum 23 is to be replaced is displayed.

  In addition, when the document sheet conveying unit 2 of the image forming apparatus 1 is opened with the screen direction of the display device 11 being directed to the angle range β, this is controlled by the communication unit 85 of the image forming apparatus 1. The data is transmitted to the communication unit 17 of the unit 4 and notified to the control unit 13. Upon receiving the notification, the control unit 13 searches the image search table DT in the memory 14 and reads the image data D2b indicating the appearance when the document sheet transport unit 2 is opened, and the appearance shown in FIG. Is displayed on the screen 11 a of the display device 11. On the upper surface image G2b of this appearance, a jam occurrence location Q1 (two-dimensional position in the XY direction) and a position Q2 (two-dimensional position in the XY direction) of the photosensitive drum 23 at the replacement time may be displayed.

  Similarly, when the opening / closing door 9 of the image forming apparatus 1 is opened in a state where the screen direction of the display device 11 is directed to the angle range β, this is transmitted / received from the communication unit 85 to the communication unit 17. In response to this, the control unit 13 searches the image search table DT in the memory 14 and reads the image data D2c indicating the appearance when the open / close door 9 is opened. The top image G2c having the appearance of 6 (c) is displayed on the screen 11a of the display device 11. On the upper surface image G2c of this appearance, a jam occurrence location Q1 (two-dimensional position in the XY direction) and a position Q2 (two-dimensional position in the XY direction) of the photosensitive drum 23 at the replacement time may be displayed.

  When the jam is eliminated or the photosensitive drum 23 at the replacement time is replaced, the top image G2a having the appearance shown in FIG. 6A is displayed on the screen 11a of the display device 11 again. In addition, when the document paper transport unit 2 and the open / close door 9 are closed, the top image G2a having the appearance shown in FIG. 6A is displayed again on the screen 11a of the display device 11.

  Next, assuming that the user moves to the right side surface of the image forming apparatus 1 and the screen direction of the display device 11 of the operation unit 4 is generally oriented in the right horizontal direction H3 in FIGS. The control unit 13 of the operation unit 4 determines that the screen direction of the display device 11 is in the angle range γ centered on the right horizontal direction H3 based on the detection output of the azimuth sensor 16, and sets the line-of-sight direction to the right horizontal direction. An image showing the right side image of the appearance of the image forming apparatus 1 out of the image data D3a, D3b, and D3c corresponding to the right horizontal direction H3 by searching the image search table DT in the memory 14 as if it is H3. The data D3a is read, and the right side image G3a having the appearance of FIG. 7A indicated by the image data D3a is displayed on the screen 11a of the display device 11.

  For this reason, when the user moves to the right side surface of the image forming apparatus 1 and orients the screen of the display device 11 of the operation unit 4 substantially in the right horizontal direction H3, The right side image G3a of the appearance shown in FIG. 7A displayed on the screen 11a of the display device 11 can be compared.

  Further, in a state where the screen direction of the display device 11 is directed to the angle range γ, a jam occurs in the sheet conveyance path S of the image forming apparatus 1 or parts of the image forming apparatus 1 are in a replacement period. Then, the location of the jam and the position of the part at the time of replacement (three-dimensional position in the XYZ directions in FIG. 1) are transmitted and received from the communication unit 85 of the image forming apparatus 1 to the communication unit 17 of the operation unit 4. Will be notified. Upon receiving the notification, the control unit 13 obtains the two-dimensional position in the YZ direction from the three-dimensional position in the XYZ direction indicating the location where the jam has occurred and the position of the component at the replacement time, and FIGS. As shown in FIG. 4, the jam occurrence point Q1 (two-dimensional position in the YZ direction) is marked and displayed on the right side image G3a of the appearance, or the photosensitive drum 23 at the replacement time on the right side image G3a of the appearance. The position Q2 (two-dimensional position in the YZ direction) is marked and displayed.

  Further, when the original paper transport unit 2 of the image forming apparatus 1 is opened with the screen direction of the display device 11 being directed to the angle range γ, this fact is operated from the communication unit 85 of the image forming apparatus 1. The data is transmitted to the communication unit 17 of the unit 4 and notified to the control unit 13. Upon receiving the notification, the control unit 13 searches the image search table DT in the memory 14 and reads the image data D3b indicating the appearance when the document sheet transport unit 2 is opened, and the appearance shown in FIG. Is displayed on the screen 11 a of the display device 11. On the right-side image G3b of this appearance, a jam occurrence location Q1 (two-dimensional position in the YZ direction) and a position Q2 (two-dimensional position in the YZ direction) of the photosensitive drum 23 at the replacement time may be displayed.

  Similarly, when the opening / closing door 9 of the image forming apparatus 1 is opened in a state where the screen direction of the display device 11 is directed to the angle range γ, this is transmitted and received from the communication unit 85 to the communication unit 17. In response to this, the control unit 13 searches the image search table DT in the memory 14 and reads the image data D3c indicating the appearance when the open / close door 9 is opened. The right side image G <b> 3 c having the appearance 7 (c) is displayed on the screen 11 a of the display device 11. On the right side image G3c of this appearance, a jam occurrence location Q1 (two-dimensional position in the YZ direction) and a position Q2 (two-dimensional position in the YZ direction) of the photosensitive drum 23 at the replacement time may be displayed.

  When the jam is eliminated or the photosensitive drum 23 at the replacement time is replaced, the right side image G3a having the appearance shown in FIG. 7A is displayed on the screen 11a of the display device 11 again. Also, when the document paper transport unit 2 and the open / close door 9 are closed, the right side image G3a having the appearance shown in FIG. 7A is displayed again on the screen 11a of the display device 11.

  Next, assuming that the user moves to the left side surface of the image forming apparatus 1 and the screen direction of the display device 11 of the operation unit 4 is substantially oriented in the left horizontal direction H4 in FIGS. The control unit 13 of the operation unit 4 determines that the screen direction of the display device 11 is in an angle range κ centered on the left horizontal direction H4 based on the detection output of the azimuth sensor 16, and sets the line-of-sight direction to the left horizontal direction. An image showing the left side image of the appearance of the image forming apparatus 1 out of the image data D4a, D4b, and D4c corresponding to the left horizontal direction H4 by searching the image search table DT in the memory 14 as if it is H4. The data D4a is read, and the top image G4a having the appearance shown in FIG. 8A indicated by the image data D4a is displayed on the screen 11a of the display device 11.

  For this reason, when the user moves to the left side surface of the image forming apparatus 1 and orients the screen of the display device 11 of the operation unit 4 substantially in the left horizontal direction H4, the actual left side surface of the image forming apparatus 1 and The left side image G4a of the appearance of FIG. 8A displayed on the screen 11a of the display device 11 can be compared.

  Further, in a state where the screen direction of the display device 11 is directed to the angle range κ, a jam occurs in the paper transport path S of the image forming apparatus 1, or a part of the image forming apparatus 1 comes to a replacement time. Then, the location of the jam and the position of the part at the time of replacement (three-dimensional position in the XYZ directions in FIG. 1) are transmitted and received from the communication unit 85 of the image forming apparatus 1 to the communication unit 17 of the operation unit 4. Will be notified. In response to this, the control unit 13 obtains the two-dimensional position in the YZ direction from the three-dimensional position in the XYZ direction indicating the location where the jam has occurred and the position of the part at the time of replacement, and the results are shown in FIGS. As shown in the figure, a jam occurrence point Q1 (two-dimensional position in the YZ direction) is marked and displayed on the left side image G4a of the appearance, or the photosensitive drum 23 at the replacement time on the left side image G3a of the appearance. The position Q2 (two-dimensional position in the YZ direction) is marked and displayed.

  In addition, when the original paper transport unit 2 and the open / close door 9 of the image forming apparatus 1 are opened in a state where the screen direction of the display device 11 is directed to the angle range κ, this is the communication of the image forming apparatus 1. In response to this, the control unit 13 searches the image search table DT in the memory 14 and sends it to the manuscript paper transport unit 2. Then, the image data D4b or D4c indicating the appearance when the open / close door 9 is opened is read, and the left side image G4b or G4c of the appearance shown in FIGS. 8B and 8C is displayed on the screen 11a of the display device 11. Even if the appearance location Q1 (two-dimensional position in the YZ direction) of the jam or the position Q2 (two-dimensional position in the YZ direction) of the photosensitive drum 23 at the replacement time is displayed on the left side image G4b or G4c of these appearances. Good.

  When the jam is eliminated or the photosensitive drum 23 at the replacement time is replaced, the left side image G4a having the appearance shown in FIG. 8A is displayed on the screen 11a of the display device 11 again. Also, when the document paper transport unit 2 and the open / close door 9 are closed, the left side image G4a having the appearance shown in FIG. 8A is displayed again on the screen 11a of the display device 11.

  As described above, the control unit 13 of the operation unit 4 determines the line-of-sight direction corresponding to the screen direction of the display device 11 based on the detection output of the azimuth sensor 16, and determines whether the document paper transport unit 2 and the open / close door 9 are open. Receiving from the main control unit 81 of the image forming apparatus 1, the image search table DT in the memory 14 is searched to search for image data corresponding to the line-of-sight direction or the open state of the document paper transport unit 2 and the open / close door 9. The image indicated by the image data is read and displayed on the screen 11a of the display device 11, and the main controller 81 of the image forming apparatus 1 is notified of the location of the jam and the position of the part at the replacement time. The occurrence location and position are marked on the image of the screen 11a.

  Further, the control unit 13 of the operation unit 4 determines the line-of-sight direction at any time, is notified at any time of the location of the jam, the position of the part at the replacement time, and the opening / closing of the document paper transport unit 2 and the open / close door 9. Depending on the contents, one of the images shown in FIGS. 5A to 5D, FIGS. 6A to 6C, FIGS. 7A to 7C, and FIGS. 8A to 8C is displayed. Select and display as needed. Therefore, there is no special rule in the selection order of each image, and each image is always selected and displayed accurately.

  For this reason, when the user changes the screen direction of the display device 11, the image of the image forming device 1 viewed in this direction can be viewed on the screen 11a of the display device 11, and the actual image forming device can be viewed. The correspondence between 1 and its image can be easily understood.

  Further, on the front image, the top image, and the left and right side images of the image forming apparatus 1, the location where the jam has occurred, the position of the part at the time of replacement, and the open state of the original paper transport unit 2 and the open / close door 9 are respectively viewed. Therefore, it is possible to accurately specify the location where the jam has occurred and the position of the part at the time of replacement, and to accurately understand the open state of the document sheet transport unit 2 and the open / close door 9.

  In this embodiment, the images shown in FIGS. 5A to 5D, FIGS. 6A to 6C, FIGS. 7A to 7C, and FIGS. 8A to 8C are displayed. Although illustrated, an image viewed from another line-of-sight direction may be applied. For example, the image data indicating the image G5a of the image forming apparatus 1 when viewed in the front diagonally upward direction (line-of-sight direction) as shown in FIGS. Image data indicating the image G5b of the image forming apparatus 1 when viewed in the direction), and image data indicating the image G5c of the image forming apparatus 1 when viewed in the upper left direction (line-of-sight direction) and The line-of-sight direction corresponding to the direction of the screen of the display device 11 is obtained based on the detection output of the direction sensor 16 in association with the image search table DT. When the image data matches one of the upward direction and the diagonally left upward direction, image data (any one of the image data G5a, G5b, and G5c) corresponding to the matching line-of-sight direction is searched from the image search table DT. Displays an image indicated by the searched image data on a screen of the display device 11. Of course, a larger number of line-of-sight directions and the respective image data are associated and stored in the image search table DT, the line-of-sight direction is obtained based on the detection output of the azimuth sensor 16, and the image data corresponding to this line-of-sight direction is imaged. An image indicated by the image data may be displayed by searching from the search table DT.

  Further, stereoscopic image data (3D (three dimensions) image data) indicating the image forming apparatus 1 is created and stored in the memory 14, and the screen direction of the display device 11 is set based on the detection output of the direction sensor 16. A corresponding line-of-sight direction is obtained, and a two-dimensional image of the image forming apparatus 1 when viewed in the line-of-sight direction is obtained and generated from stereoscopic image data, and this two-dimensional image is displayed on the screen 11 a of the display device 11. Good. In this case, when the screen direction (gaze direction) of the display device 11 is changed, the image of the image forming apparatus 1 is continuously changed along with the change of the gaze direction.

  In addition, the present invention can be applied not only to the image forming apparatus but also to other types of electronic devices in which a display device is detachably provided. Also in this case, the direction of the screen of the display device is detected, the line-of-sight direction corresponding to this direction is obtained, and the image of the electronic device when viewed in this line-of-sight direction is obtained from the image data and displayed on the screen of the display device.

  Alternatively, the present invention may be applied to a single display device. In this case, the orientation of the screen of the display device is detected, a line-of-sight direction corresponding to this direction is obtained, and an image of the object when viewed in this line-of-sight direction is obtained from the image data and displayed on the screen of the display device. Examples of the object include a house and a car. In the case of a house, a front image, a top image, a side image, and the like of the appearance of the house are displayed according to the screen orientation of the display device. Also in the case of a car, a front image, a top image, a side image, etc. of the appearance of the car are displayed according to the orientation of the screen of the display device. Thereby, it is possible to easily compare an actual house or car with those images.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. It is understood.

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Original paper conveyance part 3 Image reading part 4 Operation part 5 Printing part 6 Paper feed part 7 Manual feed tray 11 Display apparatus 12 Operation panel 13 Control part 14 Memory (storage part)
15 Battery 16 Direction sensor (Direction detector)
17 Communication unit 81 Main control unit 82 Memory 83 Image processing unit 84 Power supply unit 85 Communication unit

Claims (10)

A portable display device,
A storage unit storing image data indicating the object;
A direction detection unit for detecting the direction of the screen of the display device;
A line-of-sight direction corresponding to the direction of the screen of the display device detected by the direction detection unit is obtained, and an image of the object when viewed in the line-of-sight direction is obtained from image data in the storage unit. A display device comprising a control unit for displaying on a screen. In an electronic device in which a display device is detachably provided on the electronic device body,
A storage unit storing image data indicating the electronic device;
A direction detection unit for detecting the direction of the screen of the display device;
A line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit is obtained, and an image of the electronic device when viewed in the line-of-sight direction is obtained from image data in the storage unit. An electronic device comprising a control unit for displaying on a screen. An image forming apparatus in which a display device is detachably provided on a main body of the image forming apparatus,
A storage unit storing image data indicating the image forming apparatus;
A direction detection unit for detecting the direction of the screen of the display device;
A line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit is obtained, and an image of the image forming apparatus when viewed in the line-of-sight direction is obtained from image data in the storage unit. An image forming apparatus comprising: a control unit that displays the image on the screen. The image forming apparatus according to claim 3, wherein
The image data in the storage unit associates a plurality of line-of-sight directions with respect to the image forming apparatus and respective images of the image forming apparatus when viewed in the respective line-of-sight directions,
When the control unit obtains the line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit, the image of the image forming apparatus corresponding to the line-of-sight direction is searched from the image data in the storage unit. And displaying on the screen of the display device. The image forming apparatus according to claim 3, wherein
The image data in the storage unit indicates a stereoscopic image of the image forming apparatus,
When the control unit obtains a line-of-sight direction corresponding to the screen direction of the display device detected by the direction detection unit, the image of the image forming apparatus when viewed in this line-of-sight direction is stored in the image data in the storage unit. An image forming apparatus generated from the display and displayed on the screen of the display device. The image forming apparatus according to claim 4, wherein:
The control unit obtains an image of the image forming apparatus corresponding to a horizontal line-of-sight direction from image data in the storage unit, initializes the image, and displays the initially set image on the screen of the display device. Image forming apparatus. The image forming apparatus according to claim 4, wherein:
The control unit obtains whether or not the screen direction of the display device detected by the direction detection unit is higher than 45 ° obliquely downward, and when the display device is upward than 45 ° diagonally downward, the display device An image forming apparatus characterized in that a horizontal line-of-sight direction is obtained as the screen direction, and a vertical downward direction is obtained as the screen direction of the display device when it is not upwardly obliquely below 45 °. An image forming apparatus according to any one of claims 3 to 7,
A failure detection unit for detecting a failure occurrence location of the image forming apparatus;
The control unit obtains an image of the image forming apparatus corresponding to the line-of-sight direction from image data in the storage unit, marks a fault occurrence location detected by the fault detection unit on the image, and displays the image as the image An image forming apparatus displaying on a screen of a display device. The image forming apparatus according to any one of claims 3 to 8,
A replacement part detection unit for detecting a part at the time of replacement of the image forming apparatus;
The control unit obtains an image of the image forming apparatus corresponding to the line-of-sight direction from image data in the storage unit, marks a part detected by the replacement part detection unit on the image, and displays the image on the display An image forming apparatus, characterized by being displayed on a screen of the apparatus. An image forming apparatus according to any one of claims 3 to 9,
A movable part detection unit for detecting a movable state of the movable part of the image forming apparatus;
The control unit obtains an image of the image forming apparatus corresponding to the line-of-sight direction from image data in the storage unit, marks the movable state of the movable component detected by the movable component detection unit on the image, and An image forming apparatus, wherein an image is displayed on a screen of the display device.

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