JP2010054565A - Display unit and image forming apparatus provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display unit which displays an easy-to-see image for a user without waiting for an instruction from the user when the user departs from the display panel. <P>SOLUTION: The size of the display image is varied according to the distance between the user's position and the display panel 41 by moving the position of the display panel 41 according to the position in which the jamming occurs as well as supposing that the position in which the jamming occurs is the user's position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device that displays an image to a user and an image forming apparatus including the display device.

  Some electric apparatuses such as image forming apparatuses include a display device that presents an image indicating an operation method or the like to a user.

In such a display device, various ideas are made so that the user can easily recognize the image. For example, Patent Document 1 describes an image forming apparatus that has a function of displaying a moving image representing an error canceling procedure and an enlargement key for receiving an instruction to enlarge the moving image from a user. Yes.
Japanese Patent Laying-Open No. 2005-208335 (paragraphs [0008], [0024], etc.)

  In the conventional technology, when the user leaves the image forming apparatus, it is difficult for the user to visually recognize the screen. In order to enlarge the display, the user has to approach the image forming apparatus again, which is inconvenient.

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a display device that can reduce the operation burden on the user and a technology using the display device.

  The display device according to claim 1 is a display device provided in an electric device, and the display size of the display unit increases as the display unit capable of displaying an image, and the position of the display unit and the position of the user are separated from each other. With the display size changing part to change. Is provided.

  According to this display device, the display size can be increased as the position of the display unit and the position of the user are separated from each other without waiting for an instruction from the user. be able to.

  According to a second aspect of the present invention, the display device according to the first aspect further includes an error position recognition unit capable of recognizing an error occurrence position in the electric device, and the display size changing unit includes the error occurrence position. The display size may be changed as the position of the user.

  As described in claim 3, the display device according to claim 1 or 2 may further include a position changing unit that changes a position of the display unit with respect to the electric device.

  According to a fourth aspect of the present invention, in the display device of the third aspect, the position changing unit may move the display unit to a position where the user can visually recognize the position.

  As described in claim 5, the display device according to claim 4 further includes an error position recognition unit capable of recognizing an error occurrence position in the electric device, and the position change unit includes the error occurrence position. The position of the display unit may be changed with the user position.

  According to a sixth aspect of the present invention, the display device according to any one of the first to fifth aspects may further include a direction changing unit that changes a direction of the display unit with respect to the electrical device.

  According to a seventh aspect of the present invention, in the display device according to the sixth aspect, the orientation changing unit may be configured such that the orientation of the display unit is an angle at which the user can visually recognize the orientation.

  According to an eighth aspect of the present invention, the display device of the seventh aspect further includes an error position recognition unit capable of recognizing an error occurrence position in the electric device, and the direction changing unit displays the error occurrence position as a user. As the position, the direction of the display unit may be changed.

  The display device according to any one of claims 1 to 8, as described in claim 9, receives an image forming unit that forms an image on a sheet according to image data, and a sheet after image formation. The present invention can be applied to an image forming apparatus that includes a paper discharge tray and a paper transport device that transports paper to the paper discharge tray through the image forming unit.

  According to the present invention, the display size can be increased as the position of the display unit and the position of the user are separated from each other without waiting for an instruction from the user, thereby reducing a user's operation burden in increasing the display size. Can do.

[1] First Embodiment Hereinafter, an image forming apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings. Hereinafter, unless otherwise specified, the directions such as “up”, “down”, “right”, “left”, “horizontal”, “vertical”, “front”, “back”, etc. In the normal installation posture, the direction viewed from the user operating the image forming apparatus 1 is indicated.

(1-1) Image forming apparatus 1
An outline of an image forming apparatus 1 according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view showing an external appearance of the image forming apparatus 1, and FIG. 2 is a block diagram showing a main part configuration of the image forming apparatus 1.

  As shown in FIGS. 1 and 2, the image forming apparatus 1 includes a main body device 10, an external paper feeding unit 20, a finisher 30, and a display unit 40. When viewed from the user, the external sheet feeding unit 20 is disposed on the right side of the main body apparatus 10 and the finisher 30 is disposed on the left side. A panel base 45 of the display unit 40, which will be described later, is arranged on the right side of the external paper feeding unit 20, and the display panel 41 is arranged above the external paper feeding unit 20 by default.

  The external paper feeding unit 20, the finisher 30, and the display unit 40 are connected so as to be communicable with the main body device 10, and information can be exchanged between these devices.

(1-2) Main unit 10
As shown in FIGS. 1 and 2, the main body device 10 includes an image forming unit 11, a paper transport unit 12, a paper feed cassette 13, a jam detection unit 14, an open / close detection unit 15, a jam detection unit 14, an open / close detection unit 15, A main controller 16 is provided.

  The image forming unit 11 prints an image on a sheet based on the image data. As the image forming unit 11, a printing method such as an electrophotographic method or an ink jet method can be employed.

  The paper transport unit 12 includes a plurality of rollers and a belt, and a drive unit that drives them. The paper transport unit 12 supplies the paper in the paper feed cassette 13 to the image forming unit 11 by rollers or the like, and sends the paper after the image formation to the finisher 30.

  The paper feed cassette 13 accommodates a bundle of paper and is disposed below the main body device 10. The paper feed cassette 13 can be pulled out and pushed into the housing 17 of the main body device 1. That is, the paper feed cassette 13 is an example of an opening / closing unit. In the paper feed cassette 13, paper feed rollers are arranged to draw out the paper one by one from the paper bundle.

  The jam detection unit 14 can detect the occurrence of paper jam in the paper feed cassette 13 and the paper transport unit 12. The jam detection unit 14 can detect not only a jam occurrence but also a jam occurrence position.

  In order to realize such a function, the jam detection unit 14 is arranged between a plurality of sheet sensors arranged on a sheet conveyance path by the sheet feeding cassette 13 and the sheet conveyance unit 12 to detect sheets, and between these sheet sensors. By including a determination unit that determines whether a sheet has passed within a predetermined time, it is possible to detect where the sheet is jammed in the sheet conveyance path. The determination unit can be configured by a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, and the CPU can determine the jam occurrence position based on the detection result of the paper sensor. .

  The open / close detection unit 15 can detect the opening / closing of the paper feed cassette 13. As the open / close detection unit 15, a contact type sensor can be used.

  In addition to the paper feed cassette 13, a front cover or the like (not shown) that can be opened and closed with respect to the housing 17 is provided as an opening / closing portion of the main body device 10. There is provided a sensor for detecting.

  The main control device 16 controls the operation of each part of the main body device 10 and also controls the operation of the entire image forming apparatus 1.

  The housing 17 accommodates the image forming unit 11, the paper transport unit 12, the jam detection unit 14, the open / close detection unit 15, the main control device 16, and the like, and the paper feed cassette 13 can be taken in and out as described above. .

  Although not shown, the main device 10 includes an operation panel including hard keys and a touch panel.

(1-3) External paper feed unit 20
As shown in FIGS. 1 and 2, the external paper feeding unit 20 includes a housing 22, and a paper bundle is accommodated in the housing 22. The housing 22 is provided with a plurality of rollers for supplying sheets from the sheet bundle to the main body device 10 and a drive unit for rotating these rollers.

  An upper cover 21 is provided on the upper surface of the housing 22 so that the housing 22 can be opened and closed. When the upper cover 21 is opened, the user can visually recognize the internal configuration of the external paper feeding unit 20. That is, the upper cover 21 is an example of an opening / closing part.

  The external paper feeding unit 20 further includes a jam detection unit 23 having the same configuration as the jam detection unit 14 of the main body device 10. The jam detection unit 23 can detect the occurrence of a jam in the external paper feed unit 20. The external paper feeding unit 20 includes an open / close detection unit 24 that detects the open / close of the upper cover 21, similar to the open / close detection unit 15 of the main body device 10.

(1-4) Finisher 30
As shown in FIGS. 1 and 2, the finisher 30 includes a housing 31, and a plurality of paper discharge trays 32 are provided on the side surface of the housing 31. In the housing 31, post-processing members such as punches and staples are arranged. In the housing 31, a member such as a roller for conveying the paper received from the main body device 10 to the paper discharge tray 32 and its drive memory are arranged.

  A first cover 33 and a second cover 34 are provided on the front side of the housing 31 (side facing the user). The first cover 33 is disposed above the second cover 34. When the first cover 33 and the second cover 34 are opened, the user can visually recognize the inside of the finisher 30. That is, the first and second covers (33, 34) are an example of an opening / closing part.

  The finisher 30 includes a jam detection unit 35 having the same configuration as the jam detection unit 14 of the main body device 10. The jam detection unit 35 can detect the occurrence of a jam in the finisher 30. The finisher 30 also includes an open / close detection unit 36 that detects the open / close of the first cover 33 and the second cover 34, similarly to the open / close detection unit 15 of the main body device 10. The open / close detection unit 36 includes two sensors that detect opening / closing of the covers 33 and 34, respectively.

(1-5) Display unit 40
As shown in FIGS. 1 and 2, the display unit 40 includes a display panel (display unit) 41, a touch sensor 42, an arm drive unit 43, a control device 44, a panel base 45, an arm 46, and the like.

  The display panel 41 is an example of a display unit that displays an image to the user. A liquid crystal display panel can be adopted as the display panel 41.

  The touch sensor 42 constitutes a touch panel together with the display panel 41, and can accept a user operation.

  The arm drive unit 43 can change the posture (position and orientation) of the display panel 41 by changing the angle of the arm 46 as will be described later.

  The control device 44 includes a display control unit 44a, an arm control unit 44b, and the like. The display control unit 44a controls the operation of the display panel 41 to display a screen for explaining a jam release procedure as will be described later. It also functions as a display size changing unit that changes the display size. The arm control unit 44 b controls the operation of the arm driving unit 43.

  The arm 46 will be described with reference to FIGS. 3 (a) and 3 (b). FIG. 3A is a side view of the display unit 40, and FIG. 3B is a top view of the display unit 40.

  As shown in FIGS. 3A and 3B, the arm 46 includes a first arm 46a and a second arm 46b. One end of the first arm 46 a is fixed to the panel base 45, and the other end is connected to one end of the second arm 46 b via the first rotating portion 47. The end of the second arm 46 b opposite to the first rotating portion 47 is connected to the display panel 41 via the second rotating portion 48. Thus, the arm 46 supports the display panel 41.

  The second arm 46 b can be rotated in the vertical and horizontal directions around the first rotation unit 47 by the arm driving unit 43. When the angles R1 and R3 are changed by this rotation, the display panel 41 moves in the vertical direction and the horizontal direction, respectively.

  The display panel 41 can also be rotated in the vertical direction (angle R2 direction) and the horizontal direction (angle R4 direction) around the second rotation unit 48 by the arm drive unit 43.

  Note that R1 is an angle between the first arm 46a and the second arm 46b, and R2 and R4 are angles between the display panel 41 and the second arm 46. R3 is an angle in the vertical direction and the horizontal direction, and R3 is an angle of the second arm 46b with respect to the left-right direction of the image forming apparatus 1 (left-right direction in FIG. 1).

[Control of display panel position and display size]
(A) Initial State When no jam occurs, the display size of the display panel 41 and the position and orientation of the display panel 41 remain the default as shown in FIG. That is, the position of the display panel 41 is above the external paper feeding unit 20 and the display panel 41 is in a state of facing the front. “Front” is a state in which the horizontal direction of the display panel 41 is parallel to the horizontal direction of the image forming apparatus 1 and the vertical direction of the display panel 41 is parallel to the vertical direction of the image forming apparatus 1.

(B) When a Jam Occurs Control of the display unit 40 when a jam occurs will be described with further reference to FIGS. 4 is a front view showing the appearance of the image forming apparatus 1 when a jam occurs in the upper portion of the finisher 30 and FIG. 7 is a lower portion of the finisher 30. FIG. is there.

(b-1) Jam Generation in Paper Feed Cassette 13 When the jam detection unit 14 of the main body apparatus 10 detects the occurrence of a jam in the paper feed cassette 13, it notifies the main controller 16. The main control device 16 stops operations related to printing such as paper conveyance, and transmits jam position information to the display unit 40.

  Upon receiving this information, the display control unit 44a causes the display panel 41 to display the jam occurrence position and the jam release method. In FIG. 4, “ABC” is shown as the display character. Actually, “Open the paper cassette”, “Raise the lever”, “Remove any jammed paper. ”, The jam position and the jam release procedure are displayed in accordance with the jam occurrence position. In the display of the jam release procedure, the display control unit 44a automatically displays the next procedure when a predetermined time has elapsed after the display panel 41 displays one procedure. Therefore, the user can refer to the operation procedures in order without operating the display panel 41.

  As shown in FIG. 4, when a jam occurs in the paper feed cassette 13, the user must bend in order to release the jam. Therefore, if the display panel 41 is facing the front with the default setting, it is difficult for the user to visually recognize the screen.

  Therefore, the arm control unit 44b that has received the jam position information controls the arm driving unit 43 to change the angles R1 and R3, as shown in FIG. Move to. Specifically, the display panel 41 moves above the default position and toward the front so that the user's line of sight is not blocked by the main body device 10 and the external paper feeding unit 20.

  The arm controller 44b controls the arm driver 43 to adjust the orientation of the display panel 41 by changing the angles R2 and R4. Specifically, the display panel 41 is adjusted to face the lower left as viewed from the user from the default.

  The arm control unit 44b has a table in which the position and orientation of the display panel 41, that is, the angles R1 to R4 are set in advance for each jam position, and each angle is determined based on the jam position information obtained from the main body device 10. It comes to choose.

  Furthermore, as shown in FIG. 4, the display control unit 44 a enlarges the display size of characters and images based on the distance between the user position and the display panel 41 position. In FIG. 4, since the distance between the user and the display panel 41 is larger than the default position (FIG. 1), the user can more easily visually recognize the screen by enlarging the default size. In addition, since such enlargement is automatically performed without waiting for the user's instruction, it is highly convenient for the user.

  The enlargement ratio from the default is appropriately set according to the distance between the user and the display panel 41. The larger the distance between the user and the display panel 41, the larger the enlargement ratio is set. However, the change of the enlargement ratio may be linear with respect to the distance, or may be changed stepwise, that is, stepwise.

  In the present embodiment, the display control unit 44a has a table in which an enlargement rate is preset for each jam position, and selects an enlargement rate based on jam position information obtained from the main body device 10. ing. Since the user is in the vicinity of the jam position for releasing the jam and the position of the display panel 41 is determined according to the jam position, the display size enlargement ratio is determined according to the jam position, so that the user can easily view the display. Is possible.

  Note that the enlargement ratio can be appropriately changed according to a user instruction received via the touch sensor 42. In this way, for users who want to obtain a lot of information at a time with small characters, the enlargement ratio is small, and for users who place importance on visibility, the enlargement ratio is increased. Is possible.

(b-2) Jam Occurring in the External Paper Feeding Unit 20 When the jam detection unit 23 detects the occurrence of a jam in the external paper feeding unit 20, as described in the above (b-1) column, the display unit 40 Receives jam position information via the main control unit 16. Receiving the jam position information, the arm control unit 44b adjusts the position and orientation of the display panel 41, and the display control unit 44a displays the jam release procedure corresponding to the jam position on the display panel 41 and adjusts the display size. .

  Specifically, as shown in FIG. 5, since the upper cover 21 is opened to release the jam of the external paper feeding unit 20, the display panel 41 is directed upward from the default so as not to interfere with the jam release operation. Move to. Further, for easy viewing from the user, the direction of the display panel 41 is downward from the front, and the display size is enlarged from the default.

(b-3) Jam Generation at Finisher 30 Even when the jam detection unit 35 detects the occurrence of a jam at the finisher 30, as described in the section (b-1), the display unit 40 is not connected to the main control unit 16. To receive jam position information. In response to the jam position information, the arm control unit 44b adjusts the position and orientation of the display panel 41, and the display control unit 44a displays a jam release procedure according to the jam position on the display panel 41 and adjusts the display size. .

  Specifically, as shown in FIG. 6, if the jam position is above the finisher 30, the user opens the first cover 33 to release the jam, so that the first cover is between the user and the display panel 41. The display panel 41 moves closer to the front than the default so that it is not obstructed. Then, the display panel 41 is directed to the left side from the default so as to face the user. Further, the display size is enlarged from the default.

  As shown in FIG. 7, if the jam position is below the finisher 30, the user bends and opens the second cover 34 to release the jam. Therefore, the display panel 41 moves upward from the default so that the user and the display panel 41 are not blocked by the second cover 34, the main body device 10, or the like. Then, the display panel 41 is directed to the left side from the default so as to face the user. Also, the display size is enlarged from the default.

  As described in the above sections (b-1) to (b-3), in the image forming apparatus 1, the position, orientation, and display size of the display panel 41 are adjusted according to the jam position, so that the user The display can be easily viewed.

  Further, as is apparent from the above description, it is not necessary that all the constituent elements of the display device of the present invention are incorporated in one device. For example, in the present embodiment, the jam detection unit (14, 23, 35) that is an error position recognition unit, and the open / close detection unit (15, 24, 36) that detects the open / close position include the display unit 40 including the display panel 41. Is provided in a separate device. The display unit 40 also receives control of the main control device 16 in the main device 10.

  That is, the display unit 40 can be considered as an example of the display device of the present invention, the display unit 40, the jam detection unit (14, 23, 35), the open / close detection unit (15, 24, 36), and the main unit. All of the control unit 16 can be considered as an example of the display device of the present invention.

[2] Second Embodiment Normally, the user cannot determine the occurrence position of the jam himself. Therefore, it is often the case that the jam occurrence position and the initial release procedure are first confirmed on the display panel 41, and then the jam release operation is started.

  Therefore, in the present embodiment, when the jam occurs and the control unit 44 of the display unit 40 opens the opening / closing part (13, 21, 33, 34), the control unit 44 (b-1) to (b) -3) The column is controlled.

  For example, when a jam occurs in the paper feed cassette 13, the display control unit 44 a receives the jam position information via the main control device 16, and the first procedure for releasing the jam in the paper feed cassette 13 (of the paper feed cassette 13. (Drawer) is displayed on the display panel 41. At this time, the display size remains the default, and the position and orientation of the display panel 41 remain the default (FIG. 1).

  In this state, the user who confirms the initial procedure for clearing the jam pulls out the paper feed cassette 13. When detecting that the paper feed cassette 13 has been pulled out, the open / close detection unit 15 transmits a signal indicating “paper feed cassette: open” to the main control device 16. The main controller 16 receives this signal and notifies the display unit 40 that the paper feed cassette 13 has been opened.

  Upon receiving this notification, the arm control unit 44b moves the display panel 41 to the position shown in FIG. 4 and adjusts the orientation because the paper cassette 13 has been opened. The display control unit 44a displays the next procedure on the display panel 41 and enlarges the display size so that the user can easily see when the user is in the paper feed cassette 13, as shown in FIG.

  At this time, it is assumed that the opening / closing unit other than the sheet feeding cassette 13, for example, the first cover 33 is opened. When the open / close detection unit 36 detects that the first cover 33 is opened and is notified to the display unit 40, the arm control unit 44b moves the display panel 41 to the position shown in FIG. Adjust the orientation. That is, the display panel 41 takes a position and orientation suitable for the user in the vicinity of the first cover 33. Also, the display size is enlarged to a size that is easy to see from the user in the vicinity of the first cover 33, as in FIG.

  Even when a jam occurs in another position, the display panel 41 displays the default display size, position, and angle, and the initial procedure, and the open / close detection unit 24 or 36 detects the upper cover 21, the first cover 33, or the second cover. When detecting that the cover 34 is opened, the arm control unit 44b adjusts the position and angle of the display panel 41 as shown in FIGS. 5 to 7, and the display control unit 44a switches the display contents to the next procedure. At the same time, the display size is enlarged.

  As described above, in the present embodiment, the position and orientation of the display panel 41 and the display size are adjusted so that the user can easily view the screen at the part being operated by the user.

[3] Other Embodiments The image forming apparatus 1, particularly the display unit 40, is a display device provided in an electrical device, and the display unit capable of displaying an image, the position of the display unit, and the position of the user become far apart. And a display size changing unit that greatly changes the display size of the display unit. For example, this display device can be configured as follows.

(3-1) Display Control Timing In the first and second embodiments, the occurrence of a jam is given as an example of the timing at which the position and angle of the display panel 41 and the display size are changed, but the present invention is not limited to this. . For example, the same control may be performed when an operation is requested from the user during normal operation, such as when the developer runs out, the paper runs out, or when maintenance is requested.

(3-2) User Position In the first and second embodiments, the position and orientation of the display panel 41 and the display are shown with the jam occurrence position and the opened opening / closing part (13, 21, 33, 34) as the user position, respectively. The size was controlled. However, the display unit 40 may be controlled using another position as the user position.

  For example, consider the standing (sitting) position and posture when the user performs an operation during normal operation and when requesting some operation from the user such as when the developer runs out, the paper runs out, or when other maintenance is requested. Thus, the position and orientation of the display panel 41 and the display size may be controlled. In particular, when a jam occurs, when the opening / closing part is opened, the developer running out, the paper running out, etc. can be said to be the time when an error that prevents image formation from continuing in the case of the image forming apparatus. That is, these error occurrence positions can be determined as user positions.

  Similarly, in an electrical device other than the image forming apparatus, the position and orientation of the display unit and the display size can be controlled using the error occurrence position as the user position.

  Further, the position of the user may be detected using an infrared sensor or the like.

(3-3) Control of display magnification (magnification ratio) In the first and second embodiments, the position of the display panel 41 is changed according to the jam position and the position of the opened opening / closing part (13, 21, 33, 34). Since it is set, the display magnification is also determined according to these positions. However, the present invention is not limited to this.

  For example, the display unit 40 has an angle detection unit that detects the angles R1 and R3, and the display control unit 44a uses the angles R1 and R3 as position information of the display panel 41, and the display size increases as these angles increase. You may come to enlarge.

  Further, unlike the first and second embodiments, when the user's position is constant and only the position of the display panel 41 is changed, or when the user moves and the position of the display panel 41 is fixed, etc. In addition, the display size is set so as to increase as the distance between the user and the display panel 41 increases. In the former case, the position of the display panel 41 is determined based on the angle R1 and the angle R3 as described above, and in the latter case, the jam position or the open / closed portion of the opened / closed portion as in the first and second embodiments is used. The position of the user may be detected by the position or the like, or the user position may be detected by the configuration (3-2).

  In the first and second embodiments, the display magnification is set as a table in advance. However, every time the user and / or the display unit moves, the position information of the user and / or the display unit is displayed. Based on this, the display control unit 44a may calculate the display magnification.

(3-4) Control of position and orientation of display unit In the first and second embodiments, both the position and orientation of the display panel 41 are changed, but only one of them may be changed. . The position and orientation of the display panel 41 may be fixed, and only the display size may be changed based on the position of the user.

  Similarly to the display magnification control, the arm control unit 44b calculates the display magnification based on the position information of the user and / or the display unit every time the user and / or the display unit moves. Also good.

(3-5) Position change mechanism and orientation change mechanism of the display unit The arm 46 and the arm drive unit 43 are only an example of a mechanism that forms a position change unit and a direction change unit of the display panel 41 together with the arm control unit 44b. Therefore, other configurations can be used as appropriate for the position changing unit and the direction changing unit.

(3-6) Subject of Application of the Present Invention The image forming apparatus 1 is merely an example of an electric device to which the present invention can be applied, and the present invention can be applied to other various electric devices.

  (3-7) Techniques obtained by appropriately combining the techniques described as different embodiments as described above are also included in the technical scope of the present invention.

1 is a front view showing an external appearance of an image forming apparatus 1 according to an embodiment of the present invention. 2 is a block diagram showing a main configuration of the image forming apparatus 1. FIG. (A) is a side view of the display unit 40, and (b) is a top view of the display unit 40. The front view which shows an example of the attitude | position and display size of the display panel 41. FIG. The front view which shows the other example of the attitude | position and display size of the display panel 41. FIG. The front view which shows the further another example of the attitude | position and display size of the display panel 41. FIG. The front view which shows the further another example of the attitude | position and display size of the display panel 41. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 10 Main body apparatus 13 Paper feed cassette 17 Housing 20 External paper feed unit 21 Upper cover 22 Housing 30 Finisher 31 Housing 32 Paper discharge tray 33 First cover 34 Second cover 40 Display unit 41 Display panel 45 Panel base 46 Arm 47 1st rotation part 48 2nd rotation part R1-R4 angle

Claims (9)

A display device provided in an electrical device,
A display unit capable of displaying an image;
A display size changing unit that greatly changes the display size of the display unit as the position of the display unit and the position of the user move away from each other
A display device comprising: An error position recognition unit capable of recognizing an error occurrence position in the electric device,
The display size changing unit is configured to change the display size with the error occurrence position as a user position.
The display device according to claim 1. A position changing unit for changing the position of the display unit with respect to the electrical device;
The display device according to claim 1. The position changing unit is configured to move the display unit to a position where the user can visually recognize the display unit.
The display device according to claim 3. An error position recognition unit capable of recognizing an error occurrence position in the electric device,
The position changing unit is configured to change the position of the display unit with the error occurrence position as a user position.
The display device according to claim 4. An orientation changing unit for changing the orientation of the display unit with respect to the electrical device;
The display apparatus of any one of Claims 1-5. The orientation changing unit is adapted to make the orientation of the display unit an angle at which a user can visually recognize the orientation,
The display device according to claim 6. An error position recognition unit capable of recognizing an error occurrence position in the electric device,
The orientation changing unit is configured to change the orientation of the display unit with the error occurrence position as a user position.
The display device according to claim 7. The display device according to any one of claims 1 to 8,
An image forming unit that forms an image on paper along image data;
A paper output tray to receive the paper after image formation;
A paper transport device for transporting paper to the paper discharge tray through the image forming unit;
An image forming apparatus comprising:

Images