JP5089084B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus, and more particularly to an image forming apparatus including a display device that displays a plurality of screens simultaneously.

  2. Description of the Related Art Conventionally, an image forming apparatus represented by an MFP (Multi Function Peripheral) uses a liquid crystal display (LCD) as an interface with a user, and displays a lot of information in a limited display area. For this reason, the MFP is configured to prepare a plurality of screens in advance and switch the screen displayed on the LCD to notify the user of necessary information when necessary. Of the plurality of screens, a screen for inputting a copy condition or a screen for setting an MFP is associated in a hierarchical structure. For example, as a screen for setting paper to be copied, a screen for selecting a paper feed tray for storing paper, a screen for setting the paper size to be stored in the paper feed tray, and the like are associated with different layers in the same series. . However, the user does not always store the entire hierarchical structure, and cannot know which screen in the hierarchical structure is currently displayed. For this reason, there is a problem that an inexperienced user displays a number of screens before displaying a desired screen.

  In addition, there is known an MFP that changes the angle of the display surface of the LCD in response to the line of sight of a user in a wheelchair being lower than the line of sight of a standing user. However, even if the angle of the display surface is changed, the distance between the eyes of the user riding in the wheelchair and the display surface of the LCD is longer than the distance between the eyes of the user standing upright and the display surface of the LCD. turn into. For this reason, there is a problem that it is difficult for a user in a wheelchair to visually recognize the information displayed on the LCD.

  Further, when an error such as out of paper occurs in the image forming apparatus, a screen including a message indicating the occurrence of the error is displayed on the LCD in order to notify the user of the occurrence of the error. In addition to this, it is convenient if a screen for explaining the operation corresponding to the error is displayed on the LCD. However, since the two screens are different, it is necessary to switch the screen to be displayed, and further, it is necessary to switch the screen while performing an operation corresponding to the error, which is complicated.

  Further, peripheral devices such as a finisher for discharging paper and a coin vendor for collecting a fee are connected to the image forming apparatus. Information on the peripheral devices is also displayed on the LCD of the image forming apparatus. . For this reason, it is necessary to display information relating to the image forming apparatus and information relating to the peripheral device.By connecting the peripheral device, the number of screens to be displayed increases, and work for switching the screens increases. There is a problem that the work becomes complicated.

On the other hand, Japanese Patent Application Laid-Open No. 2005-71286 (Patent Document 1) outputs different images in two directions with respect to the display surface of the LCD by adjusting the translucent slit of the parallax barrier (optical system separation element). The technology to do is described. Although this technology is applied to car navigation etc., two images displayed in two directions are visually recognized independently by two users, and display two images that are not related to each other. .
JP-A-2005-71286

  The present invention has been made to solve the above-described problems, and one of the objects of the present invention is to provide an image forming apparatus with improved operability.

  Another object of the present invention is to provide an image forming apparatus capable of providing necessary information to a user in a timely manner.

According to an aspect of the present invention, an image forming apparatus displays an image forming unit for forming an image on a recording medium and a first screen so that the image can be viewed from a first direction. Display means for displaying the second screen at the same time as the first screen so that the second screen can be viewed from a second direction different from the first direction; change means for changing the angle of the display surface of the display means; Angle detection means for detecting the angle of the display, display control means for controlling the display means to display the first screen and the second screen, and a first display mode for displaying the second screen as the same image as the first screen; Switching means for switching between a second display mode for displaying the second screen as an image different from the first screen, and the switching means switches to the first display mode when the angle of the display surface is the first angle; The display screen angle is different from the first angle. That when the second angle is switched to the second display mode, the display control means, while being switched to the first display mode, the display a first screen and a second screen of the same image as the first screen The first screen and the second screen of an image different from the first screen are simultaneously displayed on the display means while being displayed simultaneously on the means and being switched to the second display mode.

According to this aspect, the first display mode for displaying the second screen as the same image as the first screen and the second display mode for displaying the second screen as an image different from the first screen are switched. Therefore, the second screen is displayed in addition to the first screen only when necessary. An image forming apparatus with improved operability can be provided by displaying a second screen different from the first screen at the same time as the first screen as needed while displaying the first screen. Also, when the angle of the display surface is the first angle, the second screen is switched to the first display mode for displaying the same image as the first screen, and when the angle of the display surface is the second angle, the second screen is switched to the first display mode. The mode is switched to the second display mode for displaying as an image different from the first screen. For this reason, separate screens can be presented to two users with different line-of-sight heights.

Preferably, Table示制control means is in the second display mode, causes the display unit to the second screen as an image obtained by enlarging a portion in the first screen.

  According to this aspect, when the angle of the display surface is the first angle, the second screen is switched to the first display mode for displaying the same image as the first screen, and when the angle of the display surface is the second angle The second screen is switched to the second display mode in which a part of the first screen is displayed as an enlarged image. For this reason, separate screens can be presented to two users with different line-of-sight heights. For example, a user who rides in a wheelchair sees the display screen from a position away from the image forming apparatus, but a user who stands upright looks at the display surface at a position close to the image forming apparatus. An easy-to-see screen can be displayed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<First Embodiment>
FIG. 1 is a perspective view showing an external appearance of the image forming system. Referring to FIG. 1, image forming system 1 includes an MFP 2, a finisher 60, and a coin vendor 70. The MFP 2 includes an automatic document feeder (ADF) 10, a document reading unit 20, an image forming unit 30, a paper feeding unit 50, and an operation panel 80 used as a user interface. The MFP 2 can freely open and close the front door 3 and exposes the inside with the front door 3 opened.

  The finisher 60 includes a punch kit, a staple kit, a stacking tray, and a post-processing tray. The paper discharged from the image forming unit 30 is taken into the finisher, punched by a punch kit, and discharged to either the stacking tray or the post-processing tray. The stacking tray can only discharge a predetermined number of sheets, but the post-processing tray can discharge a large number of sheets by elevating vertically according to the number of discharged sheets. The staple kit again feeds the paper discharged to the post-processing tray, and discharges it to the stacking tray after stapling.

  The coin vendor 70 includes a coin insertion slot 72, a return button 73, a display unit 71, and a coin return slot 74. The coin vendor 70 accepts coins inserted into the coin insertion slot 72, calculates the remaining amount from the inserted coins, and displays the remaining amount on the display unit 71. Further, the coin vendor 70 allows the image forming unit 30 to perform image formation the number of times corresponding to the balance. In addition, when the return button 73 is pressed while the balance is remaining, the coin vendor 70 discharges the number of coins corresponding to the balance to the coin return port 74.

  FIG. 2 is a cross-sectional view showing the internal configuration of the MFP according to the present embodiment. Referring to FIG. 2, MFP 2 includes main circuit 100 for controlling MFP 2 as a whole, ADF 10, document reading unit 20, automatic duplex unit 40, image forming unit 30, paper feeding unit 50, and the like. A fan motor 92 and a fan motor control unit 91 for controlling the fan motor 92 are included.

  The ADF 10 automatically conveys a plurality of documents set on the document feed tray 11 one by one to a predetermined document reading position set on the platen glass of the document reading unit 20, and the document reading unit 20 The document on which the document image is read is discharged onto the document discharge tray 12. The document reading unit 20 includes a light source that emits light to the document conveyed to the document reading position and a photoelectric conversion element that receives light reflected from the document, and scans a document image corresponding to the size of the document. The photoelectric conversion element converts the received light into read data that is an electrical signal and outputs the read data to the image forming unit 30.

  The image forming unit 30 forms an image by a known electrophotographic method, and includes photosensitive drums 31a, 31b, 31c, and 31d, exposure units 32a, 32b, 32c, and 32d, and developing units 33a, 33b, 33c and 33d, and a transfer belt 35. The exposure units 32a, 32b, 32c, and 32d perform various data processing such as shading correction on the read data input from the document reading unit 20, and drive the laser diode for each main scanning line with the data after the data processing. And the laser light is scanned on the photosensitive drums 31a, 31b, 31c, and 31d, respectively. As a result, electrostatic latent images are formed on the photosensitive drums 31a, 31b, 31c, and 31d, respectively. The developing units 33a, 33b, 33c, and 33d correspond to four colors of yellow, magenta, cyan, and black, respectively, and a toner cartridge (toner supply unit) that stores toner of each color is mounted. The developing units 33a, 33b, 33c, and 33d form toner images by placing toner on the electrostatic latent images formed on the photosensitive drums 31a, 31b, 31c, and 31d, respectively. The toner images formed on the photosensitive drums 31a, 31b, 31c, and 31d are transferred onto the transfer belt 35 by a transfer charger. The transfer belt 35 superimposes all the toner images on the photosensitive drums 31 a, 31 b, 31 c, and 31 d corresponding to the respective colors, and transfers them onto the paper conveyed from the paper supply unit 50. The development units 33a, 33b, 33c, and 33d include toner remaining amount sensors 34a, 34b, 34c, and 34d, respectively, and detect the remaining amount of toner stored in the toner cartridge.

  The paper feed unit 50 includes paper feed trays 51, 53, and 55 for storing paper, and pickup rollers 52, 54, and 56 for feeding out the paper, and conveys the paper to the image forming unit 30. . The paper feed trays 51, 53, and 55 include paper remaining amount sensors 51A, 53A, and 55A, respectively, for detecting that there are no sheets to be stored.

  The automatic duplex unit 40 is configured to form an image on both sides of the sheet by the image forming unit 30 by switching back once on the sheet passing path and feeding again in order to reverse the paper on which one side is printed. Enable printing.

  FIG. 3 is a block diagram showing an example of the configuration of the main circuit. Referring to FIG. 3, main circuit 100 includes a CPU 101, a communication interface (I / F) unit 102, a ROM (Read Only Memory) 103, a RAM (Random Access Memory) 104, and an EEPROM (Electronically Erasable and Programmable). ROM) 105, a finisher communication unit 60A, and a coin vendor communication unit 70A.

  CPU 101 is connected to automatic document feeder 10, document reading unit 20, image forming unit 30, automatic duplex unit 40, sheet feeding unit 50, operation panel 80, and fan motor control unit 91, and controls the entire MFP 2. The CPU 101 also includes a print counter 106 for counting the number of times the image forming unit 30 has formed an image, an angle detection sensor 107 for detecting the tilt angle of the operation panel 80, a display mode changeover switch 108, and an operation panel. An angle detection sensor 107 for detecting an inclination angle of 80, toner remaining amount sensors 34a, 34b, 34c, and 34d, and sheet remaining amount sensors 51A, 53A, and 55A are connected.

  The communication I / F unit 102 is an interface for connecting the CPU 101 to an external network to which a personal computer or the like is connected. Print data transmitted from the personal computer is received by the communication I / F unit 102 and output to the CPU 101.

  The ROM 103 stores a program executed by the CPU 101 or data necessary for executing the program. The RAM 104 is used as a work area when the CPU 101 executes a program. The RAM 104 temporarily stores read data (image data) continuously sent from the document reading unit 20.

  Operation panel 80 includes a display unit 80A and an operation unit 80B. Although the operation panel will be described later, the display unit 80A is a display device such as a liquid crystal display (LCD) or an organic ELD (Electro Luminescence Display), and displays an instruction menu for the user, information about acquired image data, and the like. The operation unit 80B includes a plurality of keys, and accepts input of various instructions, data such as characters and numbers by user operations corresponding to the keys. Operation unit 80B further includes a touch panel provided on display unit 80A. The operation panel 80 is rotatably attached to the main body 2. That is, it is possible to take two postures, that is, a posture in which the display surface of the display unit 80A faces upward with respect to the main body 2 and a posture in which the display surface faces obliquely. The position of the display unit 80A is changed and determined by the user. The angle detection sensor 107 detects the rotation angle of the operation panel 80 with respect to the main body 2. Therefore, the CPU 101 can detect the attitude of the operation panel 80 with respect to the main body from the output of the angle detection sensor 107. Note that the angle detection sensor 107 detects the angle, but the switch that is turned off when the operation panel 80 is in a posture in which the display surface of the display unit 80A faces upward with respect to the main body 2, the operation panel 80. However, two switches may be detected by providing a switch that is turned on when the display surface of the display unit 80 </ b> A is tilted with respect to the main body 2. Further, the posture of the operation panel 80 is not limited to two and may be plural.

  The display mode changeover switch 108 is switched on by the user and is turned on when switching from the first display mode to the second display mode is permitted, and when switching from the first display mode to the second display mode is not permitted. It is turned off. The first display mode is a display mode in which the same image as the image displayed on the first screen is displayed on the second screen, and the second display mode is an image different from the image displayed on the first screen on the second screen. Is the display mode to be displayed. Whether or not to display the second screen can be selected by the user's intention by enabling the user to set whether or not to switch to the second display mode.

  The finisher communication unit 60 </ b> A is connected to the finisher 60 and is a communication interface for the CPU 101 to communicate with the finisher 60. The coin vendor communication unit 70 </ b> A is connected to the coin vendor 70 and is a communication interface for the CPU 101 to communicate with the coin vendor 70.

  The fan motor control unit 91 is controlled by the CPU 101 and drives the fan motor 92. The fan motor control unit 91 detects the driving state of the fan motor 92 and outputs a state signal indicating whether or not the fan motor 92 is driven to the CPU 101. If the CPU 101 inputs a status signal indicating that the fan motor is not driven from the fan motor control unit 91 even though the fan motor control unit 91 has been instructed to drive the fan motor, a trouble error is input to the fan motor. Detect that occurred.

  The paper feed unit 50 includes a timer 57, a lift-up sensor 58, and a lift-up motor 59 corresponding to the paper feed trays 51, 53, and 55, respectively. Here, the paper feed tray 55 will be described as an example. When the paper feed tray 55 is inserted into the main body of the MFP 2, the lift-up motor 59 is driven to raise the stored paper. The sheet is placed on the raising table, and the lift-up motor 59 raises the raising table at the lowest position when the sheet feeding tray 55 is inserted into the main body. The lift-up sensor 58 is installed at a position where the uppermost stage of the paper comes into contact with the pickup roller 56 and detects that the uppermost stage of the paper has risen to a position where it comes into contact with the pickup roller. The timer 57 measures the elapsed time after the lift-up motor starts driving. The CPU 101 counts the time counted by the timer 57 exceeding the time when the lift-up motor 59 is driven in a state where no paper is stored and the ascending platform on which the paper is placed rises to a position where it comes into contact with the pickup roller. However, if the lift-up sensor 58 still does not detect the rising platform, it detects that a trouble error has occurred.

  The MFP 2 switches the operation mode to one of three operation modes, that is, a job execution mode, a standby mode, and a sleep mode. The MFP 2 switches to the standby mode after the power is turned on. Thereafter, when a job is input and job execution is instructed, the standby mode is switched to the job execution mode. On the other hand, when a predetermined time elapses without switching from the standby mode to the job execution mode, the mode is switched to the sleep mode. The sleep mode is a mode in which power consumption is suppressed. When the MFP 2 is in the sleep mode, if there is an operation input on the operation panel 80, the MFP 2 switches to the standby mode.

  FIG. 4 is a plan view of the operation panel. Referring to FIG. 4, operation panel 80 is superimposed on LCD 81 as display portion 80A, numeric keypad 82, clear key 83A, panel reset key 83B, stop key 83C, start key 84, and LCD as operation portion 80B. Touch panel 85. The numeric keypad 82 is used for inputting a number such as the number of copies, a copy magnification, a telephone number of a facsimile transmission destination, and the like. The clear key 83A is used to input an instruction to return the numeric value or the like to a predetermined default value. Panel reset key 83B is used to input an instruction to return a set value set in MFP 2 to a default value. The stop key 83C is used to input an instruction to stop the operation being executed by the MFP 2. The start key 84 is used to instruct the MFP 2 to start an operation instructed. The touch panel 85 is made of a transparent member and is provided so as to be superimposed on the LCD 81. Therefore, if a key is displayed on the LCD 81, the touch panel 85 accepts the instruction if the user points to the key.

  As described in Japanese Patent Application Laid-Open No. 2005-71286, the LCD 81 adjusts the translucent slit of the parallax barrier (optical system separation element) to thereby display different images in two directions with respect to the display surface of the LCD 81. Can be output. The parallax barrier is a screen having a plurality of vertical or horizontal translucent slits separated by an opaque region, and light transmitted through an image on the LCD 81 passes through the translucent slit corresponding to the pixel in the first direction. And the light transmitted through another pixel is output in the second direction through the translucent slit corresponding to that pixel. In other words, the LCD 81 can display the first screen so that it can be viewed from the first direction, and can display the second screen so that it can be viewed from the second direction. It is.

  If the parallax barrier is a screen having a plurality of horizontal translucent slits separated by opaque regions, the user can visually recognize two different images depending on the distance between the position where the user stands and the MFP 2.

  FIG. 5 is a first diagram illustrating a relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 5, the angle of view with respect to operation panel 80 differs between line of sight A when the user stands near MFP 2 and line of sight B when the user stands slightly away from the front of MFP 2. Operation panel 80 is fixed to the upper surface of MFP 2 in a posture with the display surface of LCD 81 facing upward. The line of sight A has a smaller angle with the normal of the display surface of the LCD 81 than the line of sight B. Hereinafter, among the images displayed on the LCD 81, an image that can be viewed by the user with the line of sight A is referred to as a first screen, and an image that can be viewed with the line of sight B is referred to as a second screen.

  MFP 2 in the present embodiment stores a plurality of screens to be displayed on LCD 81 in a hierarchical structure in association with each other in EEPROM 105, and CPU 101 reads a predetermined screen from EEPROM 105 and displays it on LCD 81. The screen defined in each hierarchy is associated with the screen defined in the lower hierarchy, and includes a transition button for switching the display to the screen associated in the lower hierarchy. Here, the description will be made assuming that the hierarchical structure of the first hierarchy of the highest hierarchy, the second hierarchy lower than the first hierarchy, and the third hierarchy lower than the second hierarchy is defined.

  FIG. 6 is a diagram illustrating an example of an operation screen displayed on the LCD. FIG. 6A is a diagram illustrating an example of a basic operation screen defined in the first hierarchy. This basic operation screen is first displayed on the LCD 81 as the first screen when the MFP 2 is powered on. The basic operation screen is displayed on the transition button for transitioning the screen displayed on the paper tray selection screen for selecting the paper tray for setting the paper size and on the copy magnification setting screen for setting the copy magnification. A transition button for transitioning the screen and a transition button for transitioning the screen displayed on the exposure amount setting screen for setting the exposure amount are included. The paper feed tray selection screen, the copy magnification setting screen, and the exposure amount setting screen are screens associated with the basic operation screen and defined on the second layer.

  FIG. 6B is a diagram illustrating an example of a paper feed tray selection screen defined in the second hierarchy. This paper feed tray selection screen is displayed on the LCD 81 as the first screen when a transition button for changing the screen displayed on the paper feed tray selection screen is designated on the basic screen shown in FIG. The A selection button for selecting each of the first paper feed tray, the second paper feed tray, and the third paper feed tray, a transition button displaying a return character, and a transition button displaying a change character are included. . The button displaying the return character is a transition button for transitioning the screen to be displayed on the upper layer screen. Here, when a transition button displaying a return character is designated, the basic operation screen shown in FIG. 6A is displayed on the LCD 81 as the first screen. The button with the change character is a sheet for setting the sheet size for the sheet feeding tray selected by the selection button among the first sheet feeding tray, the second sheet feeding tray, and the third sheet feeding tray. This is a transition button for transitioning the screen displayed on the size setting screen. The paper size setting screen is a screen defined in the third hierarchy and associated with the paper feed tray selection screen.

  FIG. 6C is a diagram illustrating an example of a paper size setting screen defined in the third hierarchy. This paper size setting screen is displayed when a transition button indicating a change character is instructed while the first paper feed tray is selected on the paper feed tray selection screen shown in FIG. 6B. It is displayed on the LCD 81 as the first screen. The paper size setting screen includes a button for setting each paper size and a button displaying a return character. When a button for setting the paper size is instructed, the paper size corresponding to the instructed button is set. In the figure, the A4 size is set to the first paper feed tray. The button displaying the return character is a transition button for transitioning the screen to be displayed on the upper layer screen. Here, when the transition button displaying the return character is designated, the paper size selection screen shown in FIG. 6B is displayed on the LCD 81 as the first screen.

  FIG. 7A is a first diagram illustrating an example of a hierarchical display screen showing a hierarchical structure. The hierarchical display screen shown in FIG. 7A is a hierarchical display displayed on the LCD 81 as the second screen when the paper feed tray selection screen shown in FIG. 6B is displayed on the LCD 81 as the first screen. The screen is shown. Referring to FIG. 7A, the hierarchical display screen shows the entire hierarchical structure, with the top level showing the position of the first level screen, the middle level showing the position of the second level screen, and the bottom level. Shows the position of the third layer screen. The hierarchy display screen shown in FIG. 7A indicates the position in the hierarchical structure of the corresponding first screen, here the paper feed tray selection screen defined in the second hierarchy, by hatching. By viewing the hierarchical display screen displayed as the second screen, the user can determine which of the hierarchical structures configured by associating a plurality of screens with the paper feed tray selection screen displayed on the first screen. Can be confirmed.

  FIG. 7B is a second diagram illustrating an example of a hierarchical display screen showing a hierarchical structure. The hierarchical display screen shown in FIG. 7B is displayed on the LCD 81 as the second screen when the paper size setting screen shown in FIG. 6C is displayed on the LCD 81 as the first screen. Referring to FIG. 7B, the hierarchical display screen shows the entire hierarchical structure, and the position in the hierarchical structure of the corresponding first screen, here, the paper size setting screen defined in the third hierarchy is hatched. Is shown. By checking the hierarchical display screen displayed as the second screen, the user confirms in which of the hierarchical structures the paper size setting screen displayed on the first screen is configured by associating multiple screens. can do.

  FIG. 8 is a first flowchart illustrating an example of the flow of display control processing. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 8, CPU 101 determines whether or not the operation mode of MFP 2 is a standby mode (step S01). If it is in the standby mode, the process proceeds to step S02, and if it is not in the standby mode, the process is completed.

  In step S02, the screen of the first layer is displayed on the LCD 81 as the first screen. Here, the basic operation screen shown in FIG. 6A is displayed on the LCD 81 as the first screen. Then, the same basic operation screen as the first screen is displayed on the LCD 81 as the second screen (step S03). For this reason, the user visually recognizes the basic operation screen from both the line of sight A and the line of sight B.

  In step S 04, it is determined whether or not the first level screen is being displayed on the first screen of LCD 81. If the first layer screen is being displayed, the process proceeds to step S05; otherwise, the process proceeds to step S11. In step S05, it is determined whether or not the transition button to the second hierarchy has been pressed. If the transition button to the second hierarchy is pressed, the process proceeds to step S06; otherwise, the process proceeds to step S08. Here, it is assumed that a button for changing the screen displayed on the paper feed tray selection screen is designated on the basic screen displayed on the LCD 81.

  In step S06, the second layer screen corresponding to the transition button instructed in step S05 is displayed on LCD 81 as the first screen. Here, the paper feed tray selection screen shown in FIG. 6B is displayed on the LCD 81 as the first screen as the first screen. In the next step S07, the hierarchical display screen is displayed on the LCD 81 as the second screen. Here, the hierarchical display screen shown in FIG. 7A corresponding to the paper feed tray selection screen is displayed on the LCD 81 as the second screen. For this reason, when the user leaves the MFP 2 slightly backward, the LCD 81 is viewed from the line of sight B, so that the hierarchical display screen displayed as the second screen can be viewed. By viewing the hierarchy display screen, the user can confirm in which of the hierarchical structures the plurality of screens are associated with the paper feed tray selection screen viewed from the line of sight A approaching the MFP 2.

  In step S08, it is determined whether or not the transition button including the return character included in the paper feed tray selection screen is pressed. If the transition button displaying the return character is pressed, the process proceeds to step S09; otherwise, the process proceeds to step S11. In step S09, the first layer screen is displayed on LCD 81 as the first screen. Then, the same basic operation screen as the first screen is displayed on the LCD 81 as the second screen (step S10), and the process proceeds to step S11. In step S <b> 11, it is determined whether a second layer screen is being displayed on the first screen of the LCD 81. If the second layer screen is being displayed, the process proceeds to step S12; otherwise, the process proceeds to step S18. In step S12, it is determined whether or not the transition button to the third hierarchy has been pressed. If the transition button to the third hierarchy is pressed, the process proceeds to step S13; otherwise, the process proceeds to step S15. Here, in step S12, it is assumed that a transition button in which characters for changing the paper feed tray selection screen are indicated is designated.

  In step S13, the third level screen corresponding to the transition button instructed in step S12 is displayed on LCD 81 as the first screen. Here, the paper size setting screen shown in FIG. 6C is displayed on the LCD 81 as the first screen. In the next step S14, the hierarchical display screen is displayed on the LCD 81 as the second screen. Here, the hierarchical display screen shown in FIG. 7B corresponding to the paper size setting screen is displayed on the LCD 81 as the second screen. For this reason, when the user is slightly away from the MFP 2, the user sees the LCD 81 with the line of sight B, so that the hierarchical display screen displayed as the second screen can be viewed. By viewing the hierarchical display screen, the user can confirm in which of the hierarchical structures the paper size setting screen viewed from the line of sight A approaching the MFP 2 is configured by associating a plurality of screens.

  In step S15, it is determined whether or not the transition button including the return character displayed on the paper size setting screen has been pressed. If the transition button displaying the return character is pressed, the process proceeds to step S16; otherwise, the process proceeds to step S18. In step S16, the second layer screen related to the third layer screen is displayed on LCD 81 as the first screen. Here, the paper feed tray selection screen shown in FIG. 6B is displayed on the LCD 81 as the first screen as the first screen. In the next step S17, the hierarchical display screen is displayed on the LCD 81 as the second screen. In step S18, the paper size set on the paper size setting screen is set as the paper stored in the paper feed tray selected on the paper feed tray selection screen, and the process ends.

  As described above, the MFP 2 in the first embodiment displays the first screen and the second screen on the LCD 81, and the first screen and the second screen are related images. Specifically, one of a plurality of screens related in a hierarchical structure is displayed as the first screen, the entire hierarchical structure is shown, and the hierarchical display of the first screen in the hierarchical structure is indicated by hatching The screen is displayed as the second screen. For this reason, the user views the hierarchical display screen with the line of sight B from a position slightly away from the MFP 2 to confirm in which position the first screen viewed with the line of sight A from the position approaching the MFP 2 is located. can do. As a result, transition of a plurality of screens can be easily grasped, so that setting of image forming conditions is facilitated, and operability is improved.

  8 is executed when the display mode changeover switch 108 is turned on, and when the display mode changeover switch 108 is turned off, the display mode changeover process shown in FIG. If the display mode switching process shown is not executed, it is possible to switch whether or not to display the hierarchical display screen as the second screen. For this reason, it is possible to determine whether or not to display the hierarchy display screen according to the user's intention.

<Second Embodiment>
The operation panel 80 of the MFP 2 can change the angle of the display surface of the LCD 81. The MFP 2 in the second embodiment switches whether the image displayed on the second screen is the same as or different from the image displayed on the first screen, depending on the angle of the display surface of the LCD 81.

  FIG. 9 is a second diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. FIG. 10 is a third diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 9, line of sight A when the user looks at LCD 81 with the angle of operation panel 80 of MFP 2 as the first angle is shown. Referring to FIG. 10, a line of sight B when the user who is in a wheelchair looks at LCD 81 with the angle of operation panel 80 of MFP 2 as the second angle is shown. The angle of the operation panel 80 is detected by the angle detection sensor 107. The line of sight A and the line of sight B have different angles with respect to the operation panel 80. The line of sight A has a smaller angle with the normal of the display surface of the LCD 81 than the line of sight B. In FIG. 10, when the operation panel 80 is at the second angle, the angle formed between the line of sight A where the user standing on the side of the wheelchair and looking at the LCD 81 and the normal line of the LCD 81 is different from the user on the wheelchair is It is close to the angle formed by the line of sight A in FIG. For this reason, when the operation panel 80 is at the second angle, the user on the wheelchair looks at the LCD 81 with the line of sight B, and the user standing next to the wheelchair looks at the LCD 81 with the line of sight A. The image visible with the line of sight A is the first screen, and the image visible with the line of sight B is the second screen.

  FIG. 11 is a diagram illustrating an example of a first screen displayed on the LCD 81 when the operation panel 80 is at the second angle. FIG. 11 shows an example of the basic operation screen, which is the same as the basic operation screen shown in FIG. This basic operation screen is displayed on the LCD 81 as the first screen when the operation panel 80 is at the second angle. FIG. 12 is a diagram illustrating an example of a screen displayed as the second screen on the LCD 81 when the operation panel 80 is at the second angle. Referring to FIG. 12, a screen on which the characters “paper”, “magnification”, and “exposure” included in the basic operation screen shown in FIG. 11 are enlarged is displayed on LCD 81 as a second screen. A user in a wheelchair makes it easy to see the LCD 81 by setting the operation panel 80 to the second angle. However, the distance between the LCD 81 and the position of the user's eyes is such that the user viewing the LCD 81 without getting in the wheelchair. Longer than the distance between the eye position. For this reason, it is possible to make the characters displayed on the LCD 81 easier to see.

  FIG. 13 is a second flowchart illustrating an example of the display control process executed by the MFP according to the second embodiment. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 13, CPU 101 displays a normal character screen on LCD 81 as the first screen (step S21). Next, it is detected whether or not the angle detection sensor 107 is ON (step S22). If the angle detection sensor 107 is ON, the process proceeds to step S23; otherwise, the process proceeds to step S24. The angle detection sensor 107 is turned on when the angle of the operation panel 80 with respect to the MFP 2 main body is the second angle, and turned off when the angle is the first angle.

  In step S23, the enlarged character operation screen is displayed on the LCD 81 as the first screen. Here, the second screen shown in FIG. For this reason, the user who does not get on a wheelchair visually recognizes the basic operation screen of normal characters, but the user who rides on a wheelchair visually recognizes the basic operation screen of enlarged characters. Since the user who rides in a wheelchair has a longer distance between the eyes and the LCD 81 than the user who does not ride in the wheelchair, the user who rides in the wheelchair can easily see the characters displayed on the LCD 81.

  As described above, the MFP 2 in the second embodiment switches to the first display mode when the angle of the operation panel 80 is detected by the angle detection sensor 107 and the angle of the operation panel 80 is the first angle. When the angle of the panel 80 is the second angle, the mode is switched to the second display mode. In the second display mode, an enlarged image of a part of the image displayed on the first screen is displayed on the LCD 81 as the second screen. To do. For this reason, while the user who rides in a wheelchair can see an easy-to-see screen with a part enlarged, a user standing next to the wheelchair can see a normal screen of characters. As a result, it is possible to simultaneously display a screen that is easy for the user who gets on the wheelchair and the user who stands next to the user to see the screen.

  Further, when the display mode changeover switch 108 is turned on, the display mode changeover process shown in FIG. 13 is executed, and when the display mode changeover switch 108 is turned off, the display shown in FIG. If the display mode switching process shown is not executed, it is possible to switch whether or not to display the enlarged character screen as the Phi 2 screen by switching the display mode switching switch 108 to ON or OFF. For this reason, it is possible to determine at the user's intention whether or not to display a partially enlarged screen according to the usage situation.

<Third Embodiment>
The MFP 2 in the third embodiment switches the image displayed on the second screen to be the same as or different from the image displayed on the first screen in accordance with the change in the state of the MFP 2. It is a thing. In particular, the MFP 2 is configured to make the first screen and the second screen different when an error state occurs. FIG. 14 is a third flowchart illustrating an example of the flow of display control processing executed by the MFP according to the third embodiment. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 14, CPU 101 performs paper error processing (step S31), toner error processing (step S32), consumables error processing (step S33), first trouble error processing (step S34), and second trouble error. A process (step S35) is performed.

  FIG. 15 is a flowchart illustrating an example of the flow of paper error processing. Referring to FIG. 15, CPU 101 determines whether a paper feed tray has been selected (step S311). If the paper feed tray is selected, the process proceeds to step S312, and if not selected, the process returns to error processing. Here, an example in which the paper feed tray 51 is selected will be described. In step S312, it is determined whether or not the remaining paper amount sensor 51A of the paper feed tray 51 selected in step S312 is turned on. The remaining sheet sensor 51A is turned on when there is no longer any sheet stored in the sheet feed tray 51. If the remaining sheet sensor 51A is ON, the process proceeds to step S313; otherwise, the process returns to the error process.

  In step S313, the first paper error screen is displayed on the LCD 81 as the first screen. FIG. 16 shows an example of the first paper error screen. Referring to FIG. 16, the first paper error screen is different from the basic operation screen shown in FIG. 6A in the message box message, and includes a message explaining the state. Specifically, the message box includes a message “please replenish paper”. Therefore, it is possible to notify the user that there is no remaining amount of paper from only the first paper error screen.

  Returning to FIG. 15, in step S314, it is determined whether or not the display mode changeover switch 108 is ON. If display mode changeover switch 108 is ON, the process proceeds to step S315, and if OFF, the process proceeds to step S316. In step S315, the second paper error screen is displayed on the LCD 81 as the second screen. FIG. 17 shows an example of the second paper error screen. The second paper error screen includes a message explaining a predetermined operation procedure for the state.

  On the other hand, in step S316, the first paper error screen is displayed on the LCD 81 as the second screen. Respecting the user's intention, the images displayed on the first screen and the second screen are made the same so that the user can view the same image from any line of sight when viewing the LCD 81.

  FIG. 18 is a fourth diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 18, LCD 81 is mounted on MFP 2 with the display surface facing upward at the upper front of MFP 2. The paper feed tray 51 is pulled out in front of the MFP 2. At this time, since the paper feed tray 51 is pulled out, the user stands at a position slightly rearward from the MFP 2, and the LCD 81 is viewed from the line of sight B. Further, the user can visually recognize the paper feed tray 51 by merely changing the line of sight downward without moving from the position. As described above, the LCD 81 is disposed at a position where the user can view the paper feed tray 51 pulled out from the MFP 2 without moving from the position where the user views the paper feed tray 51. Accordingly, a user standing at a position slightly rearward from the MFP 2 with the paper feed tray 51 pulled out from the MFP 2 will explain the image displayed as the second screen on the LCD 81, here, the operation procedure shown in FIG. The second paper error screen including the message to be displayed is viewed, and it is not necessary to switch the screen displayed on the LCD 81 to the help screen, and the work procedure for storing the paper in the paper feed tray 51 can be understood. .

  FIG. 19 is a flowchart illustrating an example of the flow of toner error processing. The toner error process is a process executed in step S32 of FIG. Referring to FIG. 19, CPU 101 determines whether at least one of remaining toner sensors 34a, 34b, 34c, and 34d is turned on (step S321). The remaining toner sensors 34a, 34b, 34c, and 34d are turned on when the amount of toner stored in the toner cartridge falls below a predetermined amount. If at least one of toner remaining amount sensors 34a, 34b, 34c, and 34d is ON, the process proceeds to step S322; otherwise, the process returns to error processing. Here, a case where the toner remaining amount sensor 34c of the yellow developing unit 33c is turned on will be described as an example.

  In step S322, the first toner error screen is displayed on the LCD 81 as the first screen. FIG. 20 shows an example of the first toner error screen. Referring to FIG. 20, the first toner error screen is different from the basic operation screen shown in FIG. 6A only in the message in the message box, and includes a message explaining the state. Specifically, the message box includes a message “please replenish toner”. Therefore, it is possible to notify the user that the remaining amount of any one of cyan, magenta, yellow, and black toner is low only from the first toner error screen.

  Returning to FIG. 19, in step S323, it is determined whether or not the display mode switch 108 is ON. If display mode changeover switch 108 is ON, the process proceeds to step S324, and if OFF, the process proceeds to step S325. In step S324, the second toner error screen is displayed on the LCD 81 as the second screen. FIG. 21 shows an example of the second toner error screen. The second toner error screen includes a message explaining a predetermined operation procedure for the state. Here, this message includes a description of a work procedure for replacing the yellow toner cartridge.

  On the other hand, in step S325, the first toner error screen is displayed on the LCD 81 as the second screen. Respecting the user's intention, the images displayed on the first screen and the second screen are made the same so that the user can view the same image from any line of sight when viewing the LCD 81.

  FIG. 22 is a fifth diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 22, the front door 3 of the MFP 2 is opened and the developing unit 33 c is pulled out from the MFP 2. The user who sees the first toner error screen can know that the remaining amount of toner of cyan, magenta, yellow and black is low. When the user opens the front door 3 of the MFP 2, the position where the user stands is slightly shifted backward. If the LCD 81 of the operation panel 80 is viewed from that position, the LCD 81 is viewed from the line of sight B. As a result, the user sees the second toner error screen. Therefore, the user can view the second screen only by moving the line of sight to the LCD 81 from the position of viewing the toner cartridge causing the error. As a result, the user can know that the remaining amount of yellow toner has decreased and the procedure for replacing the toner cartridge, and the user can pull out the developing unit 33c from the MFP 2 to smoothly replace the toner cartridge. It can be carried out.

  FIG. 23 is a flowchart illustrating an example of the flow of consumables error processing. The consumable item error process is a process executed in step S33 of FIG. Referring to FIG. 23, CPU 101 determines whether a print instruction has been accepted (step S331). When the user presses the start key 84 on the operation panel 80, the CPU 101 accepts a print instruction. If a print instruction has been accepted, the process proceeds to step S332; otherwise, the process proceeds to step S338. In step S332, the print counter 106 is incremented. Then, it is determined whether or not the print counter 106 has exceeded a predetermined threshold value (step S333). Here, the threshold value is the limit of use of the transfer belt 35. If the print counter exceeds a predetermined threshold value, the process proceeds to step S334; otherwise, the process proceeds to step S338.

  In step S334, the first consumable error screen is displayed on the LCD 81 as the first screen. FIG. 24 shows an example of the first consumable screen. Referring to FIG. 24, the first consumable error screen is different from the basic operation screen shown in FIG. 6A in the message box message, and includes a message explaining the state. Specifically, the message box includes the message “It is time to replace the transfer belt”. Therefore, it is possible to notify the user that it is time to replace the transfer belt 35 only from the first consumable error screen.

  Returning to FIG. 23, in step S335, it is determined whether or not the display mode changeover switch 108 is ON. If display mode changeover switch 108 is ON, the process proceeds to step S336, and if OFF, the process proceeds to step S337. In step S336, the second consumable error screen is displayed on the LCD 81 as the second screen, and the process proceeds to step S338. FIG. 25 shows an example of the second consumable error screen. The second consumable error screen includes a message explaining an operation procedure predetermined for the state. Here, the message includes a description of an operation procedure for replacing the transfer belt.

  On the other hand, in step S337, the first consumable error screen is displayed on the LCD 81 as the second screen, and the process proceeds to step S338. Respecting the user's intention, the images displayed on the first screen and the second screen are made the same so that the user can view the same image from any line of sight when viewing the LCD 81.

  In step S338, it is determined whether or not the consumable item, here, the transfer belt 35 has been replaced. If it is exchanged, the process proceeds to step S339. If not exchanged, step S339 is skipped and the process is terminated. In step S339, the print counter 106 is reset, and the process ends.

  FIG. 26 is a sixth diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 26, the front door 3 of the MFP 2 is opened and the transfer belt 35 is pulled out from the MFP 2. The user who sees the first consumable error screen can know that it is time to replace the transfer belt. When the user opens the front door 3 of the MFP 2, the position where the user stands is slightly shifted backward. If the LCD 81 of the operation panel 80 is viewed from that position, the LCD 81 is viewed from the line of sight B. As a result, the user sees the second consumable error screen. Therefore, the user can view the second screen only by moving the line of sight to the LCD 81 from the position where the transfer belt 35 causing the error is viewed. As a result, the user can know the procedure for replacing the transfer belt 35 and can smoothly perform the operation of replacing the transfer belt of the MFP 2.

  FIG. 27 is a flowchart illustrating an example of the flow of the first trouble error process. The first trouble error process is a process executed in step S34 of FIG. Referring to FIG. 27, CPU 101 determines whether or not the power is turned on (step S341). When the power switch is turned on, the CPU 101 detects that the power is turned on. If the power is turned on, the process proceeds to step S342; otherwise, the process proceeds to step S343. In step S342, variables used when trouble occurs are reset.

  In step S343, it is determined whether the image forming unit 30 is printing. If printing is in progress, the process proceeds to step S344; otherwise, the process proceeds to step S345. In step S344, fan motor 92 is turned on, and the process proceeds to step S346. Specifically, the fan motor control unit 91 outputs a signal for driving the fan motor 92. On the other hand, in step S345, the fan motor is turned off, and the process proceeds to step S346. Specifically, the fan motor control unit 91 outputs a signal for stopping the driving of the fan motor.

  In step S346, it is determined whether the state of fan motor 92 is ON. If the fan motor is on, the process proceeds to step S347, and if not, the process returns to error processing. This is because no trouble occurs in the fan motor when the fan motor is not ON. In step S347, it is determined whether the fan motor is driven. Specifically, a state signal indicating whether the fan motor 92 is driven from the fan motor control unit 91 is received and determined. If the received status signal indicates that fan motor 92 is not driven, the process proceeds to step S348. If the status signal indicates that fan motor 92 is driven, the process returns to error processing. This is because the fan motor is operating normally if the state of the fan motor 92 is ON and the fan motor 92 is driven.

  In step S348, the first motor error screen is displayed on LCD 81 as the first screen. FIG. 28 shows an example of the first motor error screen. Referring to FIG. 28, the first motor error screen is different from the basic operation screen shown in FIG. 6A only in the message box message, and includes a message explaining the state. Specifically, the message box includes the message “Trouble has occurred”. For this reason, it is possible to notify the user that a trouble has occurred only from the first motor error screen.

  Returning to FIG. 27, in step S349, it is determined whether or not the display mode switch 108 is ON. If display mode switch 108 is ON, the process proceeds to step S349A, and if OFF, the process proceeds to step S349B. In step S349A, the second motor error screen is displayed on LCD 81 as the second screen. FIG. 29 shows an example of the second motor error screen. The second motor error screen includes a message explaining a predetermined operation procedure for the state. Here, the message includes a telephone number as a contact information, and includes a description of a work procedure for calling and transmitting the trouble code C123 to the service person.

  Returning to FIG. 27, in step S349B, the first motor error screen is displayed on the LCD 81 as the second screen. Respecting the user's intention, the images displayed on the first screen and the second screen are made the same so that the user can view the same image from any line of sight when viewing the LCD 81.

  The user who has seen the first motor error screen can know that a trouble has occurred. If the user looks at the LCD 81 of the operation panel 80 from the position retracted from the MFP 2, the user sees the second motor error screen. For this reason, as a result, the user can know the work procedure for dealing with the trouble, and can take necessary measures to avoid the trouble.

  FIG. 30 is a flowchart illustrating an example of the flow of the second trouble error process. The second trouble error process is a process executed in step S35 of FIG. Referring to FIG. 30, CPU 101 determines whether any of paper feed trays 51, 53, and 55 has been inserted into the main body of MFP 2 (step S351). Here, a case where the paper feed tray 55 is inserted will be described as an example. If the paper feed tray 55 has been inserted, the process proceeds to step S352; otherwise, the process proceeds to step S354. This is because the second trouble error process is a process for detecting a trouble after the paper feed tray 55 is inserted.

  Next, the lift-up motor 59 is turned on and driven (step S352), and the timer 57 starts measuring time (step S353). Then, it is determined whether or not the lift-up sensor 58 is turned on (step S354). If the lift-up sensor 58 is ON, the process proceeds to step S355; otherwise, the process proceeds to step S357. In step S355, the lift-up motor 59 is turned off to stop driving. Then, the timer 57 is stopped (step S356), and the process returns to the error process. This is because if the lift-up sensor 58 is turned on before the timer 57 expires, it has been operated normally.

  In step S357, it is determined whether or not the timer 57 has finished timing. When the time measured by the timer 57 exceeds a predetermined threshold, the time measurement by the timer 57 ends. The threshold value is a time period during which the lift-up motor 59 is driven in a state in which no paper is stored, and the ascending platform rises to a position where it comes into contact with the pickup roller. If the timer 57 has finished timing, the process proceeds to 358; otherwise, the process returns to error processing. The CPU 101 drives the lift-up motor 59 when the time counted by the timer 57 is not stored, and the lift-up sensor 58 is still driven even if the time counted by the timer 57 exceeds the threshold value. If no rise is detected, it is determined that a trouble has occurred.

  In step S358, the first paper feed tray error screen is displayed on LCD 81 as the first screen. FIG. 31 shows an example of the first paper feed tray error screen. Referring to FIG. 31, the first paper feed tray error screen is different from the basic operation screen shown in FIG. 6A only in the message box message, and includes a message explaining the state. Specifically, the message box contains the message “Can be copied (3rd row is not allowed)”. For this reason, it is possible to notify the user that a trouble has occurred in the paper feed tray 55 using only the first paper feed tray error screen.

  Returning to FIG. 30, in step S359, it is determined whether or not the display mode changeover switch 108 is ON. If display mode switch 108 is ON, the process proceeds to step S359A, and if OFF, the process proceeds to step S359B. In step S359A, the second paper feed tray error screen is displayed on the LCD 81 as the second screen. FIG. 32 shows an example of the second paper feed tray error screen. The second paper feed tray error screen includes a message explaining an operation procedure predetermined for the state. Here, this message includes a telephone number as a contact, and includes a description of a work procedure for calling the contact and transmitting the trouble code C987 to the service person.

  Returning to FIG. 30, in step S349B, the first motor error screen is displayed on the LCD 81 as the second screen. Respecting the user's intention, the images displayed on the first screen and the second screen are made the same so that the user can view the same image from any line of sight when viewing the LCD 81.

  The user who has seen the first paper feed tray error screen can know that a trouble has occurred in the third paper feed tray 55. If the user views the LCD 81 of the operation panel 80 from a position retracted from the MFP 2, the user will see the second paper feed tray error screen. For this reason, the user can view the second screen only by moving the line of sight to the LCD 81 from the position of viewing the third-stage paper feed tray 55 that causes trouble. As a result, it is possible to know the work procedure for dealing with the trouble, and it is possible to take necessary measures to avoid the trouble.

  As described above, when an error is detected, the MFP 2 in the third embodiment switches to the second display mode, displays the state explanation screen corresponding to the detected error as the first screen, and detects the error. A screen including a message explaining the operation procedure corresponding to the error is displayed as the second screen. For this reason, the occurrence of an error can be notified to the user, and the work procedure can be notified to the user when the user takes an attitude corresponding to the error. As a result, the user can be notified of a message explaining the operation procedure at the timing when the user moves to a position corresponding to the error without switching the screen.

<Fourth embodiment>
In the MFP 2 in the first to third embodiments, the parallax barrier of the LCD 81 is a screen having a plurality of horizontal translucent slits separated by an opaque region. However, the MFP 2 in the fourth embodiment is an LCD 81. The parallax barrier is a screen having a plurality of vertical translucent slits separated by opaque regions. Therefore, in the MFP 2 according to the fourth embodiment, the user can visually recognize two different images by changing the position where the user stands with respect to the MFP 2 in the horizontal direction. That is, the LCD 81 displays the first screen so that it can be viewed only from the limited first viewing angle, and displays the second screen so that it can be viewed from other than the first viewing angle. It is possible.

  FIG. 33 is a seventh diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 33, a view of MFP 2 as seen from above is shown. The line of sight A when the user stands in front of the MFP 2 is different from the line of sight B when standing in front of the finisher 60 in the position diagram moved slightly laterally. Operation panel 80 is arranged on the upper surface of MFP 2 with the display surface of LCD 81 facing upward. The line of sight A has a smaller angle with the normal of the display surface of the LCD 81 than the line of sight B. Hereinafter, among the images displayed on the LCD 81, an image that can be viewed by the user with the line of sight A is referred to as a first screen, and an image that can be viewed with the line of sight B is referred to as a second screen.

  FIG. 34 is a functional block diagram showing an outline of the function of the finisher. Referring to FIG. 34, finisher 60 has a CPU 61 for controlling the entire finisher 60, a staple needle presence / absence detection sensor 62 for detecting the presence / absence of staples, and a communication I / F 63 for communicating with MFP2. With. The CPU 61 communicates with the CPU 101 of the MFP 2 via the communication I / F 63. CPU 61 executes post-processing in accordance with an instruction input from CPU 101 of MFP 2. When the staple presence / absence detection sensor 62 outputs a signal indicating the presence of staples, the CPU 61 transmits a staple staple out signal of 0 to the CPU 101, and the staple presence / absence detection sensor 62 indicates a absence of staples. Is output, a staple staple out signal with a value of 1 is transmitted to the CPU 101.

  FIG. 35 is a fourth flowchart illustrating an example of the flow of display control processing executed by the MFP according to the fourth embodiment. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 35, CPU 101 determines whether image forming unit 30 is printing or not (step S41). If printing is in progress, the process proceeds to step S44; otherwise, the process proceeds to step S42. In step S42, the basic operation screen shown in FIG. 6A is displayed on the LCD 81 as the first screen. In the next step S43, the first finisher state display screen is displayed on the LCD 81 as the second screen, and the process proceeds to step S46. FIG. 36 shows an example of the first finisher state display screen. As described above, the basic operation screen displayed as the first screen displays a screen including information related to the MFP 2, whereas the first finisher state display screen displayed as the second screen displays information related to the finisher 60. Display the screen that contains it. If the user moves to the front of the finisher 60, the first finisher state display screen can be viewed on the LCD 81, and if the user moves to the front of the MFP 2, the basic operation screen can be viewed on the LCD 81.

  Returning to FIG. 35, in step S44, the copying screen is displayed on the LCD 81 as the first screen. In the next step S45, the second finisher state display screen is displayed on the LCD 81 as the second screen. FIG. 37 shows an example of the copying screen. Referring to FIG. 37, the copy-in-progress screen is different from the basic operation screen shown in FIG. 6A only in the message box message, and includes a message explaining the state. Specifically, the message box includes a message “Copying”. Therefore, it is possible to inform the user that the MFP 2 is driving the image forming unit 30 and printing is being performed only from the copying screen. FIG. 38 shows an example of the second finisher status display screen. Referring to FIG. 38, the second finisher status display screen includes a message explaining the finisher setting status. As described above, the copy-in-progress screen displayed as the first screen displays a screen including information regarding the MFP 2, whereas the second finisher state display screen displayed as the second screen displays information regarding the finisher 60. Display the screen that contains it. If the user moves to the front of the finisher 60, the second finisher state display screen can be viewed on the LCD 81, and if the user moves to the front of the MFP 2, the copying screen can be viewed on the LCD 81.

  Returning to FIG. 35, in step S46, it is determined whether or not the value of the staple staple break signal is 1. If the CPU 101 receives a staple staple out signal having a value of 1 from the CPU 61 of the finisher 60, the process proceeds to step S47. If not, the process ends. In step S47, the first finisher error screen is displayed on the LCD 81 as the first screen. In the next step S48, the second finisher error screen is displayed on the LCD 81 as the second screen. FIG. 39 shows an example of the first finisher error screen. Referring to FIG. 39, the first finisher error screen is different from the basic operation screen shown in FIG. 6A in the message box message, and includes a message explaining the state. Specifically, the message box includes a message “please replenish staples”. Therefore, it is possible to notify the user that the finisher is in a state where the staples are insufficient from only the first finisher error screen. FIG. 40 shows an example of the second finisher error screen. The second finisher error screen includes a message explaining a predetermined operation procedure for the finisher state. Here, this message includes a description of a work procedure for exchanging staples.

  In this way, the finisher can inform the user that the staple needle is in shortage only from the first finisher error screen displayed as the first screen, and the user who sees the finisher displays it on the front of the finisher 60. When moved, the second finisher error screen displayed on the LCD 81 as the second screen is visually recognized. For this reason, the user can replenish the staples while viewing the second finisher error screen.

  FIG. 41 is a flowchart illustrating an example of the flow of finisher control processing. The finisher control process is a process executed by the CPU 61 when the CPU 61 of the finisher 60 executes the finisher control process program. Referring to FIG. 41, CPU 61 determines whether or not the staple mode is set (step S51). If the staple mode is set, the process proceeds to step S52; otherwise, the process ends. This is because if the staple mode is not set, the staple is not used, and no problem occurs even if the staple is not present. In step S52, if the output of the staple needle presence / absence detection sensor 62 indicates that the staple is present, the process proceeds to step S54, and if the output is not present, the process proceeds to step S53. In step S53, a value 1 is set to the needle break signal and transmitted to the MFP 2. In step S54, a value 2 is set to the needle break signal and transmitted to the MFP 2.

<Modification>
The MFP 2 described above displays information regarding the finisher on the LCD 81 as the second screen, whereas the MFP 2 according to the modified example displays information regarding the coin vendor on the LCD 81 as the second screen.

  FIG. 42 is an eighth diagram illustrating the relationship between the positions of the user and the MFP and the user's line of sight. Referring to FIG. 42, a view of MFP 2 as seen from above is shown. The angle with respect to the operation panel 80 is different between the line of sight A when the user stands in front of the MFP 2 and the line of sight B when standing in front of the coin vendor 70 in the drawing. Operation panel 80 is arranged on the upper surface of MFP 2 with the display surface of LCD 81 facing upward. The line of sight A has a smaller angle with the normal of the display surface of the LCD 81 than the line of sight B. Hereinafter, among the images displayed on the LCD 81, an image that can be viewed by the user with the line of sight A is referred to as a first screen, and an image that can be viewed with the line of sight B is referred to as a second screen.

  FIG. 43 is a functional block diagram showing an outline of the function of the coin vendor. Referring to FIG. 43, a coin vendor 70 has a CPU 75 for controlling the entire coin vendor 70, and a remaining money refund button 73, a remaining money presence / absence sensor 76, a coin presence / absence detection sensor 77, and a display connected to the CPU 75, respectively. Unit 71 and a communication I / F 78 for communicating with MFP 2. The CPU 75 communicates with the CPU 101 of the MFP 2 via the communication I / F 78 and transmits the printable number of sheets to the CPU 101. The CPU 75 counts the coins inserted into the coin insertion slot 72 and calculates the balance. In addition, the CPU 75 receives the image formation history from the MFP 2, subtracts the cost required for image formation from the balance, and calculates the balance. If the balance is positive, the CPU 75 sets a value 1 to the balance signal and transmits the balance signal to the CPU 101 of the MFP 2 via the communication I / F 78. If the balance is negative, the CPU 75 sets a value 0 to the balance signal. The change-out signal is transmitted to the CPU 101 of the MFP 2 via the communication I / F 78.

  When the balance return button is instructed, the CPU 75 discharges coins corresponding to the balance to the coin return port 74. The remaining money presence / absence sensor 76 detects the amount of coins to be returned and outputs it to the CPU 75. The CPU 75 calculates an amount that can be refunded from the amount of coins detected by the remaining amount presence / absence sensor 76, and determines that there are not enough coins to be refunded if the amount that can be refunded falls below the remaining amount. If there are not enough coins to be refunded, the CPU 75 sets a value 1 to the change-out signal, transmits the change-out signal to the CPU 101 of the MFP 2 via the communication I / F 78, and receives a coin to be returned. If there is no shortage, the value 0 is set in the change-out signal and the change-out signal is transmitted to the CPU 101 of the MFP 2 via the communication I / F 78.

  FIG. 44 is a flowchart illustrating an example of the flow of coin vendor processing. This coin vendor control process is a process executed by the CPU 75 when the coin vendor control program is executed by the CPU 75 of the coin vendor 70. Referring to FIG. 44, CPU 75 determines whether there is a balance (step S61). With respect to the balance, if there is a balance corresponding to the unit price for image formation, it is determined that there is a balance, and the process proceeds to step S62; otherwise, the process proceeds to step S63. In step S62, the balance signal in which value 1 is set is transmitted to MFP 2, and the process proceeds to step S64. In step S 63, the balance signal set to 0 is transmitted to MFP 2. The balance signal is a signal indicating that there is a balance when the value is 1, and indicates that there is no balance when the value is 0.

  In step S64, it is determined whether or not the balance refund button 73 is pressed. If the remaining money refund button 73 is pressed, the process proceeds to step S65, and if not, the process ends. In step S65, it is determined whether or not there is a refundable coin. If there is no coin for refund, the process proceeds to step S66, and if there is a coin for refund, the process proceeds to step S67.

  In step S66, a change-out signal in which value 1 is set is transmitted to MFP 2, and the process ends. In step S67, a change-out signal in which a value of 0 is set is transmitted to MFP 2, and the process ends. The change change signal is a signal indicating that there is no refund coin if the value is 1, and indicating that there is a refund coin if the value is 0.

  FIG. 45 is a fifth flowchart illustrating an example of the flow of display control processing according to the modification. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 45, CPU 101 determines whether or not the balance signal received from coin vendor 70 is value 1 (step S71). If the value of the balance signal is not 1, the process proceeds to step S72. If the value of the balance signal is 1, the process proceeds to step S74.

  In step S72, the standby screen is displayed on LCD 81 as the first screen. FIG. 46 shows an example of the standby screen. Referring to FIG. 46, the standby screen is different from the basic operation screen shown in FIG. 6A only in the message box message, and includes a message explaining the state. Specifically, the message box includes a message “please put money”. For this reason, it is possible to notify the user that only when the coin is inserted into the coin vendor, the image can be formed only from the standby screen.

  Returning to FIG. 45, in step S73, the first vendor standby screen is displayed as the second screen, and the process proceeds to step S76. FIG. 47 shows an example of the first vendor standby screen. Referring to FIG. 47, the first vendor standby screen includes a message indicating a fee structure. When the user moves to the front side of the coin vendor 70, the user can visually recognize the first vendor standby screen displayed on the LCD 81 and know the fee system. For this reason, it is possible to determine how much coins should be inserted to copy the desired number of sheets.

  Returning to FIG. 45, in step S74, the basic operation screen is displayed on the LCD 81 as the first screen. FIG. 48 shows an example of the basic operation screen. In the next step S75, the second vendor standby screen is displayed on the LCD 81 as the second screen. FIG. 49 is a diagram showing an example of the second vendor standby screen. Referring to FIG. 49, the second vendor standby screen includes a message for displaying the number of images that can be formed with the balance calculated from the inserted coins. When the user moves to the front side of the copy vendor, the user can visually recognize the second vendor standby screen displayed on the LCD 81 and know the number of images that can be formed. For this reason, it is possible to determine whether or not additional coins need to be inserted in order to copy the desired number of copies.

  Returning to FIG. 45, in step S <b> 76, it is determined whether or not the change change signal received from the coin vendor 70 is “1”. If the change-out signal value is 1, the process proceeds to step S77. If the change-out signal value is not 1, the process ends. In step S77, the first vendor error screen is displayed on LCD 81 as the first screen, and in step S78, the second vendor error screen is displayed on LCD 81. FIG. 50 shows an example of the first vendor error screen. Referring to FIG. 50, the first vendor error screen is different from the basic operation screen shown in FIG. 6A only in the message box message, and includes a message explaining the state. Specifically, the message box includes the message “Out of change”. For this reason, it is possible to notify the user that the coin vendor is short of change only from the first vendor error screen. FIG. 51 shows an example of the second vendor error screen. Referring to FIG. 51, the second vendor error screen includes a message explaining a predetermined work procedure for the error state of the coin vendor. Here, this message includes a message that the change is to be delivered at the cash register, and includes a description of a work procedure for contacting the cash register.

  As described above, the MFP 2 in the fourth embodiment displays a screen including information related to the MFP 2 as the first screen when the user stands in front of the MFP 2, and the finisher 60 or coin vendor connected to the MFP 2. When the user moves to the front of 70, a screen including information related to the finisher 60 or the coin vendor 70 is displayed as the second screen. Therefore, when the user operates the MFP 2 without switching the screen displayed on the LCD 81, the user can visually recognize information related to the MFP 2, and when the user moves to the front of the finisher 60 or the coin vendor 70, the finisher 60 Alternatively, the user can visually recognize information related to the coin vendor 70. Therefore, the screen that can be viewed by the user is switched depending on the position of the user without switching the screen to be displayed. Therefore, the screen to be displayed can be switched according to the movement of the user.

Further, when an error occurs in the finisher 60 or the coin vendor 70, a state explanation screen corresponding to the detected error is displayed as the first screen, and a screen including a message explaining an operation procedure corresponding to the detected error is displayed. Display as two screens. For this reason, it is possible to notify the user of the occurrence of an error, and to notify the user of the work procedure when the user moves to the finisher 60 or the coin vendor 70 in order to respond to the error. As a result, the user can be notified of a message explaining the operation procedure at the timing when the user moves to a position corresponding to the error without switching the screen.
In addition, since a screen including information related to the coin vendor 70 is displayed on the second screen of the LCD 81, the display unit 22 can be omitted from the coin vendor 70.

<Fifth embodiment>
The MFP 2 according to the fifth embodiment displays an image including information related to the MFP 2 as a first screen, and displays an image including information not related to the MFP 2 as a second screen. Further, the MFP 2 identifies a user who is an operation subject operating the MFP 2 and displays an image including different information as the second screen depending on the identified user.

  FIG. 52 is a flowchart illustrating an example of the flow of ID confirmation processing. This ID confirmation process is a process executed by the CPU 101 when the CPU 101 executes the ID confirmation program stored in the ROM 103. Referring to FIG. 52, CPU 101 determines whether or not the ID confirmation key on operation panel 80 has been turned on (step S81). The ID confirmation key is displayed on the LCD 81 of the operation panel 80. When the user instructs the ID confirmation key, the CPU 101 detects the ID confirmation key being turned on from the designated position received from the touch panel 85. If it is detected that the ID confirmation key is ON, the process proceeds to step S82; otherwise, the process ends. In step S82, it is determined whether or not the input ID matches a registered ID registered in advance. The registration ID is, for example, an ID assigned to a user who is predetermined to use the MFP 2. The ID that does not correspond to the registration ID is, for example, a guest user. If the input ID matches the registration ID, the process proceeds to step S83; otherwise, the process proceeds to step S88.

  In step S83, it is determined whether or not the input ID matches the specified ID. The designated ID is a predetermined ID among the registration IDs. This is because by setting a special ID in advance from among the registered IDs, the information to be displayed differs between the special ID and the other ID. If the input ID matches the specified ID, the process proceeds to step S85; otherwise, the process proceeds to step S84. In step S84, it is determined whether or not the input ID is included in 1 to 100. If the input ID is any one of 1 to 100, the process proceeds to step S86; otherwise, the process proceeds to step S87. This is for classifying a predetermined ID and an ID that is not a specified ID among the registered IDs, and differently displaying information. For example, if the regular employee ID is assigned to any one of 1 to 100 and the temporary employee ID is assigned to 101 or more, the information displayed between the regular employee and the temporary employee can be made different.

  In step S85, the input ID is a designated ID, and the ID level is set to 1. In step S86, the input ID is not the designated ID, but any of 1 to 100, and 2 is set as the ID level. In step S87, the input ID is 101 or more, and 3 is set as the ID level. In step S88, the input ID is not a registered ID, and 0 is set in the ID level. Specifically, when a user who is assigned a specified ID logs in to the MFP 2, the ID level is set to 1, when a regular employee who is not assigned a specified ID logs in, the ID level is set to 2, and when a temporary employee logs in, the ID level is set. The level is set to 3, and when the guest user logs in, the ID level is set to 4.

  FIG. 53 is a sixth flowchart illustrating an example of the flow of display control processing. This display control process is a process executed by the CPU 101 when the CPU 101 executes a display control program stored in the ROM 103. Referring to FIG. 53, CPU 101 determines whether or not a job is being executed (step S91). If the job is being executed, the process proceeds to step S92; otherwise, the process proceeds to step S93. In step S92, the in-copying screen shown in FIG. 37 is displayed on LCD 81 as the first screen, and the process proceeds to step S96.

  In step S93, it is determined whether or not standby is in progress. If so, the process proceeds to step S94; otherwise, the process proceeds to step S95. In step S94, the basic operation screen shown in FIG. 6A is displayed on LCD 81 as the first screen, and the process proceeds to step S96. When the process proceeds to step S95, the job is not being executed or is in a standby state, that is, in a sleep state. During the sleep, nothing is displayed on the first screen (step S95).

  In step S96, it is determined whether or not the display mode changeover switch 108 is ON. If display mode switch 108 is ON, the process proceeds to step S97, and if OFF, the process proceeds to step S98. In step S97, a second screen display process is executed, and in step S98, the same screen as the first screen is displayed as the second screen. This is to respect the user's intention and to make the images displayed on the first screen and the second screen the same so that the user can view the same image from any line of sight when viewing the LCD 81. .

  FIG. 54 is a flowchart illustrating an example of the flow of the second screen display process. The second screen display process is a process executed in step S97 in FIG. Referring to FIG. 54, it is determined whether or not the ID level is set to 1 (step S101). If the ID level is set to 1, the process proceeds to step S104; otherwise, the process proceeds to step S102. In step S102, it is determined whether or not the ID level is set to 2. If the ID level is set to 2, the process proceeds to step S105; otherwise, the process proceeds to step S103. In step S103, it is determined whether or not the ID level is set to 3. If the ID level is set to 3, the process proceeds to step S106; otherwise, the process proceeds to step S107.

  In step S104, the personal information screen is displayed on LCD 81 as the second screen. In step S105, the company information screen is displayed on LCD 81 as the second screen. In step S106, the general information screen is displayed on the LCD 81 as the second screen, and in step S107, the same screen as the first screen is displayed on the LCD 81 as the second screen.

  FIG. 55 is a diagram showing an example of a personal information screen. Referring to FIG. 55, the personal information screen includes personal information of the logged-in user. The personal information is, for example, the contents of electronic mail. When a user who is assigned a designated ID logs in to the MFP 2, personal information such as an e-mail is displayed on the second screen, which is convenient for notifying an emergency contact, for example.

  FIG. 56 is a diagram showing an example of a company information screen. Referring to FIG. 56, the company information screen includes, for example, information that needs to be kept secret in the company. For this reason, if a regular employee user logs in to the MFP 2, the company information screen is displayed, which is convenient.

  FIG. 57 is a diagram showing an example of a general information screen. The MFP 2 accesses a predetermined URL via the communication I / F unit 102, obtains general information, and generates a general information screen. Here, an example using a weather forecast as general information is shown. For this reason, when the user of the temporary worker logs in to the MFP 2, the general information screen is displayed, so that the temporary information is not known to the temporary information.

  As described above, the MFP 2 in the fifth embodiment displays an image including information related to the MFP 2 as the first screen, and displays an image including information unrelated to the MFP 2 as the second screen. Therefore, timely information can be provided to the user who operates the MFP 2.

  Further, since the ID of the user who is the operation subject is confirmed and the information to be displayed as the second screen is determined based on the confirmation result of the ID, the information presented according to the operation subject can be varied.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

<Appendix>
(1) a paper feeding unit for supplying paper to the image forming unit;
The state detection means is a paper remaining amount detection sensor for detecting the remaining amount of paper stored in the paper feeding unit,
The image forming apparatus according to claim 4, wherein the display unit is arranged at a position where the second screen and the paper feeding unit can be visually recognized without moving.
(2) a toner supply unit for supplying toner to the image forming unit;
The state detecting means is a toner remaining amount detecting sensor for detecting a remaining amount of toner stored in the toner supply unit;
The image forming apparatus according to claim 4, wherein the display unit is arranged at a position where the user can visually recognize the second screen and the toner supply unit without moving.
(3) The state detection means includes a life detection means for detecting the life of the consumables,
The image forming apparatus according to claim 4, wherein the display unit is arranged at a position where a user can visually recognize the second screen and the consumables simultaneously.
(4) The image forming apparatus according to claim 4, wherein the state detection unit includes a trouble error detection unit that detects a trouble error.
(5) The image forming apparatus according to claim 5, wherein the peripheral device is a paper discharge unit and is connected in a lateral direction of the image forming unit.
(6) The image forming apparatus according to (5), wherein the peripheral device is a coin vendor and is connected in a lateral direction of the image forming unit.
(7) The image forming apparatus according to (6), wherein the display control unit displays an image including information acquired from the Internet as the second screen.
(8) The image forming apparatus according to (6), wherein the display control unit displays an image including information acquired from an intranet as the second screen.
(9) The image forming apparatus according to (6), wherein the display control unit displays, as the second screen, an image including information accessible to the operating subject authenticated by the authentication unit.
(10) The image forming apparatus according to (6), wherein the display unit is disposed above the image forming unit with the display surface facing upward.

1 is a perspective view showing an external appearance of an image forming system. 2 is a cross-sectional view showing an internal configuration of an MFP according to the present embodiment. FIG. It is a block diagram which shows an example of a structure of a main circuit. It is a top view of an operation panel. FIG. 6 is a first diagram illustrating a relationship between positions of a user and an MFP and a user's line of sight. It is a figure which shows an example of the operation screen displayed on LCD. It is a figure which shows an example of the hierarchy display screen which shows a hierarchical structure. It is a 1st flowchart which shows an example of the flow of a display control process. FIG. 10 is a second diagram illustrating a relationship between the positions of the user and the MFP and the user's line of sight. FIG. 10 is a third diagram illustrating the relationship between the position of the user and the MFP and the user's line of sight. It is a figure which shows an example of the 1st screen displayed on LCD when an operation panel exists in a 2nd angle. It is a figure which shows an example of the 2nd screen displayed on LCD when an operation panel exists in a 2nd angle. 10 is a second flowchart illustrating an example of a display control process executed by the MFP according to the second embodiment. 14 is a third flowchart illustrating an example of a flow of display control processing executed by the MFP according to the third embodiment. 6 is a flowchart illustrating an exemplary flow of a sheet error process. FIG. 10 is a diagram illustrating an example of a first paper error screen. FIG. 10 is a diagram illustrating an example of a second paper error screen. FIG. 10 is a fourth diagram illustrating a relationship between positions of a user and an MFP and a user's line of sight. 6 is a flowchart illustrating an example of a flow of toner error processing. FIG. 6 is a diagram illustrating an example of a first toner error screen. FIG. 10 is a diagram illustrating an example of a second toner error screen. FIG. 10 is a fifth diagram illustrating a relationship between positions of a user and an MFP and a user's line of sight. It is a flowchart which shows an example of the flow of a consumable goods error process. It is a figure which shows an example of a 1st consumable goods screen. It is a figure which shows an example of the 2nd consumable goods error screen. FIG. 10 is a sixth diagram illustrating a relationship between a position of a user and an MFP and a user's line of sight. It is a flowchart which shows an example of the flow of a 1st trouble error process. It is a figure which shows an example of a 1st motor error screen. It is a figure which shows an example of a 2nd motor error screen. It is a flowchart which shows an example of the flow of a 2nd trouble error process. FIG. 10 illustrates an example of a first paper feed tray error screen. FIG. 10 is a diagram illustrating an example of a second paper feed tray error screen. FIG. 10 is a seventh diagram illustrating a relationship between a position of a user and an MFP and a user's line of sight. It is a functional block diagram which shows the outline | summary of the function of a finisher. 14 is a fourth flowchart illustrating an example of a flow of display control processing executed by the MFP according to the fourth embodiment. It is a figure which shows an example of a 1st finisher state display screen. It is a figure which shows an example of a copy screen. It is a figure which shows an example of a 2nd finisher state display screen. It is a figure which shows an example of a 1st finisher error screen. It is a figure which shows an example of a 2nd finisher error screen. It is a flowchart which shows an example of the flow of a finisher control process. FIG. 10 is an eighth diagram illustrating a relationship between a position of a user and an MFP and a user's line of sight. It is a functional block diagram which shows the outline | summary of the function of a coin vendor. It is a flowchart which shows an example of the flow of a coin vendor process. It is a 5th flowchart which shows an example of the flow of the display control process in a modification. It is a figure which shows an example of a standby screen. It is a figure which shows an example of a 1st vendor standby screen. It is a figure which shows an example of a basic operation screen. It is a figure which shows an example of a 2nd vendor standby screen. It is a figure which shows an example of a 1st vendor error screen. It is a figure which shows an example of a 2nd vendor error screen. It is a flowchart which shows an example of the flow of ID confirmation processing. It is a 6th flowchart which shows an example of the flow of a display control process. It is a flowchart which shows an example of the flow of a 2nd screen display process. It is a figure which shows an example of a personal information screen. It is a figure which shows an example of a company information screen. It is a figure which shows an example of a general information screen.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Image forming system, 2 Main body, 3 Front door, 10 Automatic document feeder, 11 Document feeding tray, 12 Document discharge tray, 20 Document reading part, 30 Image forming part, 31a, 31b, 31c, 31d Photosensitive drum , 32a, 32b, 32c, 32d Exposure unit, 33a, 33b, 33c, 33d Development unit, 34a, 34b, 34c, 34d Remaining toner sensor, 35 Transfer belt, 40 Automatic duplex unit, 50 Paper feed unit, 51, 53 , 55 Paper feed tray, 51A, 53A, 55A Remaining paper sensor, 52, 54, 56 Pickup roller, 57 Timer, 58 Lift-up sensor, 59 Lift-up motor, 60 finisher, 60A finisher communication unit, 61 CPU, 62 Staple Needle presence / absence detection sensor, 63 communication IF, 70 In Vendor, 70A Coin Vendor Communication Unit, 71 Display Unit, 72 Coin Insert Port, 73 Return Button, 73 Remaining Money Return Button, 74 Coin Return Port, 76 Remaining Money Presence Sensor, 77 Coin Presence Sensor, 78 Communication I / F, 80 Operation Panel, 80A display unit, 80B operation unit, 81 LCD, 85 touch panel, 91 fan motor control unit, 92 fan motor, 100 main circuit, 101 CPU, 102 communication I / F unit, 103 ROM, 104 RAM, 105 EEPROM, 106 Print counter, 107 angle detection sensor, 108 display mode switch.

Claims (2)

An image forming means for forming an image on a recording medium;
The first screen is displayed so that it can be viewed from the first direction, and the second screen is displayed as the first screen so that it can be viewed from a second direction different from the first direction. Display means for displaying at the same time;
Changing means for changing the angle of the display surface of the display means;
Angle detection means for detecting the angle of the display surface;
Display control means for controlling the display means to display the first screen and the second screen;
Switching means for switching between a first display mode for displaying the second screen as the same image as the first screen and a second display mode for displaying the second screen as an image different from the first screen;
The switching means switches to the first display mode when the angle of the display surface is a first angle, and the second display mode when the angle of the display surface is a second angle different from the first angle. Switch to
While the display control means is switched to the first display mode, the display means simultaneously displays the first screen and the second screen having the same image as the first screen on the display means. An image forming apparatus for causing the display unit to simultaneously display the first screen and the second screen of an image different from the first screen while being switched to the display mode. The image forming apparatus according to claim 1, wherein the display control unit causes the display unit to display the second screen as an enlarged image of a part of the first screen in the second display mode.

Images