JP3174650B2 - Image forming apparatus and control method of image forming apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus capable of processing data transferred from an external device via an external interface.

[0002]

2. Description of the Related Art Conventionally, this type of image forming apparatus is provided with communication control means for processing data transferred from an external device via an external interface. It is configured to mutually control communication with the device and transfer the transferred data to a work memory or the like of the main body.

On the other hand, the main body of the image forming apparatus is provided with display means for displaying, for example, messages and graphical data for instructing various operations. The display control unit of the main body changes the display state on the display means so that a message such as the current image formation is being executed, a trouble has occurred, and a message such as paper supply can be displayed at an appropriate timing. In many cases, they are managed comprehensively.

[0004]

Since the conventional image forming apparatus is configured as described above, for example, message information transferred from an external device, for example, a message relating to maintenance of the main body is displayed on a message from the external device. When displaying based on the request instruction, when the display data input timing is during image formation of the main body, etc.,
Even if an abnormality such as a jam occurs in the main body, the display data input in the communication processing remains displayed, and the display data is displayed as it is. There were problems such as the inability to provide appropriate information.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is intended to maintain display data from an external device and manage display timing so that an appropriate timing which does not hinder an image forming sequence can be obtained. It is an object of the present invention to provide an image forming apparatus capable of displaying display data inputted from the outside.

[0006]

An image forming apparatus according to the present invention comprises an image forming means, a control means for controlling the image forming means, a display data holding means for holding data to be displayed, and a display data holding means. Display means for displaying data transferred from the means, communication control means for controlling communication between an external device and the control means, and the communication control means displaying external input display data transmitted from the external device to the display data. Transfer means for transferring the image data to the holding means; setting means for setting an image forming mode of the image forming means; and an operation state of the image forming means; whether in set image forming mode by the determining means from at least one of the display contents of the display means, based on the determination result of the determination means There are those having a display control means for permitting or prohibiting the start of transfer to the display means from the display data holding means of the external input display data.

Further, the display control means is configured to prohibit the start of transfer of the external input display data from the display data holding means to the display means when the determination means determines that the image forming means is forming an image. It was done.

Further, the display control means, when the determination means determines that an abnormal state of the image forming means is displayed on the display means, starts the transfer of the external input display data from the display data holding means to the display means. It is configured to prohibit.

[0009] When the determining means determines that the image forming means is in the image forming pause state and the setting of the image forming mode by the setting means is in the pause state, the display control means changes the display data holding means of the external input display data. It is configured to permit the start of transfer to the display means.

[0010] Further, after the transfer of the external input display data from the display data holding means to the display means is completed, the display control means, if the judgment means recognizes the image forming mode setting by the setting means, displays the display contents on the display means. Is switched from external input display data to display data before the external input display data is displayed.

An image forming means, a control means for controlling the image forming means, a display data holding means for holding data to be displayed, a display means for displaying data transferred from the display data holding means, and communication control means for controlling communication with an external device and the control means, a transfer means for the communication control unit transfers the external input display data transmitted from the external device to the display data holding means, before Symbol display means Instruction means for instructing display of external input section display data to the display means; display control means for inhibiting or permitting transfer of external input display data from the display data holding means to the display means based on the instruction of the instruction means ; by the time
Determine whether the image forming means is not performing image forming operation.
Determining means for determining, and the instruction means includes:
The image forming means has not performed an image forming operation
External input display on the display means
This is an instruction to display data .

Further, the instruction means is configured to instruct the transfer of the external input display data from the display data holding means to the display means at predetermined time intervals based on the external input section display data holding information of the display data holding means. It was done.

Further, the instruction means instructs, after turning on the power, transfer of the external input display data from the display data holding means to the display means for a predetermined time based on the external input section display data holding information of the display data holding means. It is what was constituted. Further, an image forming means, an image forming control means for controlling the image forming means, a display means for performing a display relating to the control of the image forming means, and an operation means for setting an image forming mode of the image forming means Communication means for communicating with an external device via a communication line, and display control means for displaying display data received by the communication means on the display means, wherein the display control means According to at least one of an operation state, an operation state of the operation means, and a display state of the display means, it is controlled whether to display the display data received by the communication means. Control method of image forming apparatus according to the present invention
Is an image forming unit, and an image controlling the image forming unit.
Forming control means and display related to control of the image forming means
Display means for performing image forming, and an image forming mode of the image forming means
To communicate with external devices
Communication means, and display data received by the communication means.
Image having display control means for displaying on the display means
In the control method of the forming apparatus, the operation means may be provided for a predetermined time.
The operation means for a predetermined time.
If it is determined that there is no operation by the
Displaying the display data received by the communication means in the display means
Is displayed. Also, image forming
Means and image forming control means for controlling the image forming means
And display means for performing a display relating to control of the image forming means.
And setting an image forming mode of the image forming unit.
Operating means for communicating with the external device,
Displaying the display data received by the communication means in the display means
Control of an image forming apparatus having a display control means for causing a display
The image forming means operates for a predetermined time in the control method.
It is determined whether or not there is no
When it is determined that the image forming operation is not performed, the display control is performed.
Means for displaying the display data received by the communication means in the table.
This is to instruct the indicating means to display.

[0014]

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

1 and 2 are block diagrams illustrating the configuration of an image forming apparatus according to an embodiment of the present invention. In these figures, reference numeral 100 denotes an image forming apparatus main body (main body);
Denotes a control unit for controlling an image forming operation; 900, a communication control unit for transmitting and receiving data to and from an external communication line; 908, a public line as an external communication line;
Reference numeral 99 denotes a host computer set as a management base for managing the image forming apparatus main body 100; a CPU 901 for controlling the communication control means 900; a memory (RAM) 903 for temporarily storing communication data; (Modulator / demodulator) 905, a network control unit (NCU) 906, etc., for placing the

In the image forming apparatus constructed as described above, the second control means (the communication control means 90 in this embodiment)
0) can communicate with an external device (host computer 999), the first determination means (CPU 901) detects and determines the storage state of the information held in the data holding means (RAM 903), When it is determined that the storage state is abnormal, the second control means automatically notifies the external device of the abnormality, and prevents transfer of unauthorized data due to the abnormality of the data holding means to the external device. The apparatus can recognize the state of the image forming apparatus.

The second control means (communication control means 90)
0) and the control means (control means 800), the second determination means (CPU 901) analyzes the transfer data transferred from the control means to the second control means, and The transfer state is determined, and the data holding means (R
When the storage state of AM 903) is determined to be abnormal, the second control means automatically notifies the external device of that,
Transfer of unauthorized data due to data transfer abnormality from the control unit is prevented, and the external device can recognize the state of the image forming apparatus.

Further, when data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In a state where the paper jam information is transferred and held in the (RAM 903), if the external transfer start condition is met, the second
Control means controls the transfer of the paper jam information held in the data holding means to an external device, and clears the paper jam information held and stored in the data holding means based on the normal transfer state of the paper jam information. This makes it possible to prevent loss of paper jam information held in the data holding means due to a transfer failure between the second control means and the external device.

When the data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In the state where the paper jam information is transferred and held in the (RAM 903), if a preset external transfer start condition is met, the second control means (communication control means 900) causes the paper holding information stored in the data holding means. The transfer of the jam information to the external device is controlled, and the clearing process of the paper jam information held and stored in the data holding unit is controlled based on the transfer factor to the external device. It is possible to prevent the paper jam information held in the data holding means from being lost.

Further, when data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In a state where the paper jam information is transferred and held in the (RAM 903), if the external transfer start condition is met, the second
The control means controls the transfer of the paper jam information held in the data holding means to the external device, and clears the paper jam information held and stored in the data holding means based on the clear processing presence / absence setting state by the instruction means. And whether or not to execute the clearing process of the stored and stored paper jam information can be selected according to the setting of the clearing process by the user's instruction means.

When the data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In a state where the paper jam information is transferred and held in the (RAM 903), the second control unit (communication control unit 900) sends the data holding unit (R).
The external device manages the history of the same paper jam information by controlling transfer of desired data held in the data holding unit to the external device based on the frequency of occurrence of the same paper jam information held in the AM 903). To make things possible.

When data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In a state where the same paper jam information is transferred and held in the (RAM 903), the second control means (communication control) Means 900) as data holding means (RAM 903)
By controlling the transfer of the desired data held in the external device to the external device, the external device can manage the history of the same paper jam information that frequently occurs when the number of sheets is equal to or less than a predetermined number.

Further, when the data transfer between the second control means (communication control means 900) and the control means (control means 800) is started during the image forming sequence by the image forming means (main body 100), the data holding means In the state where the same paper jam information is transferred and held in the (RAM 903),
The second control means (communication control means 900) controls the data holding means (RAM 90) based on the time difference between the current time and the previous paper jam occurrence time managed by the management means (CPU 901).
By controlling the transfer of the desired data held in 3) to the external device, it is possible for the external device to manage the history of the same paper jam information that frequently occurs before a predetermined time elapses.

FIG. 3 shows the image forming apparatus main body 1 shown in FIG.
FIG. 2 is a cross-sectional view illustrating a hardware configuration of a 00.

In the figure, reference numeral 200 denotes a recirculating automatic document feeder (RDF) for automatically feeding a document, 300 a sorter for sorting sheets on which image forming processing has been performed, and 400 an automatic computer form feeder (CFF). The RDF 200, the sorter 300, and the CFF 400 are configured to be freely combined with the image forming apparatus main body 100 to form a system.

In the image forming apparatus main body 100, 101
Denotes a platen glass as a platen. Reference numeral 102 denotes an optical system as image reading means, which includes a document illumination lamp (exposure lamp) 103, a scanning mirror, a lens, and a motor 1.
An original is illuminated by an original lamp 103 while scanning by a motor 104, and reflected light from the original is irradiated on a photosensitive drum 105 by a scanning mirror and a lens. Note that an optical sensor or a mechanical sensor serving as a detecting unit is provided at a predetermined position.

Around the photosensitive drum 105, a high voltage unit 106, a blank exposure unit 107, a potential sensor 1
08, developing device 109, transfer charger 110, separation charger 1
11, a cleaning device 112 and the like are provided, and these constitute an image recording means.

The photosensitive drum 105 is rotated by a main motor 113 in the direction of the arrow shown in FIG. 3 and is corona-charged by a high-voltage unit 106. An image is formed. This electrostatic latent image is developed by the developing device 109 and is visualized as a toner image. On the other hand, the upper cassette 114
Alternatively, the pickup roller 1 may be
The transfer paper fed into the main body 100 by the paper feed rollers 118 and 119 via the registration rollers 12 and
After the timing is set such that the leading edge of the toner image coincides with the leading edge of the transfer paper by 0, the toner image is fed to the photosensitive drum 105, and the toner image is transferred by the transfer charger 110.
After the transfer, the transfer paper is separated from the photosensitive drum 105 by the separation charger 111, guided to the fixing device 122 by the conveyor belt 121, and fixed by pressure and heat.
The paper is discharged out of the main body 100 by the discharge roller 123.
The surface of the photosensitive drum 105 is cleaned by the cleaning device 112. In addition, the main body 100 is equipped with a deck 124 that can store, for example, 4000 transfer papers. The lifter 125 of the deck 124 rises according to the amount of the transfer paper so that the transfer paper always contacts the paper feed roller 126.

In FIG. 3, reference numeral 127 denotes a discharge flapper, which is a double-side recording side or a multiple recording side and a discharge side (sorter 3).
00) is switched. The transfer paper sent from the discharge roller 123 is switched to a double-sided recording side or a multiple recording side by the discharge flapper 127. Also, 12
A lower conveyance path 8 guides the transfer sheet sent from the discharge roller 123 to the re-feed tray 130 by turning over the transfer sheet through the reversing path 129. Reference numeral 131 denotes a multiplex flapper that switches the path between double-sided recording and multiplex recording. By inclining the flapper to the left, the transfer paper is led directly to the lower transport path 128 without passing through the reverse path 129. 132 is a route 133
Is a paper feed roller through which the photosensitive drum 105 feeds the transfer paper. Reference numeral 134 denotes a discharge roller that is disposed near the discharge flapper 127 and discharges the transfer sheet switched to the discharge side by the discharge flapper 127 to the outside of the apparatus.

At the time of double-sided recording (double-sided copying) or multiple recording (multiple copying), the discharge flapper 127 is raised upward and the recorded (copied) transfer paper is turned upside down through the respective paths 129 and 128 and re-printed. It is stored in the paper feed tray 130. At this time,
At the time of double-sided recording, the multiple flapper 131 is tilted rightward,
During multiplex recording, the multiplex flapper 131 is tilted leftward. During the next backside recording or multiplex recording,
The transfer paper stored in the resupply tray 130 is
Each sheet is guided to the registration roller 120 of the main body 100 via the path 133 by the sheet feeding roller 132.

When the transfer paper is to be inverted and discharged from the main body 100, the discharge flapper 127 is raised upward, the multiple flapper 131 is tilted rightward, and the recorded transfer paper is transferred to the reverse path 1.
29, and the rear end of the transfer paper is the first feed roller 1
After passing through the transfer paper 40, the transfer paper is conveyed to the second roller 141 side by the reversing roller 142, and the transfer paper is turned over by the discharge roller 134 and discharged out of the apparatus. In addition, 150 is a multi-bypass tray and 210 is a reservation tray.

FIG. 4 is a block diagram illustrating a detailed configuration of the control means 800 and the communication control means 900 shown in FIG.

In the figure, reference numeral 801 denotes a CPU for controlling the main body 100, and 802, a read-only memory (ROM) storing a control procedure (control program) for the main body 100, and a bus in accordance with the control procedure stored in the ROM 802 of the CPU 801. Control each component device connected via the. Reference numeral 803 denotes a random access memory (RAM) which is a main storage device used for storing input data, display data externally input through communication processing, a work storage area, and the like. 804 is an input / output port, 80
5 is an interface, 806 is a ROM, and LC
The font data and the graphical data to be displayed on the D display 701 are stored. In addition, the CPU 801 sets R
The control program stored in the OM 802 executes control of the image forming apparatus main body 100, communication control with the outside, display management control of display data and the like, and the like.

An input / output port 804 outputs a control signal of the CPU 801 to a load of the main motor 113 and the like and a signal of the fixing unit 122 and the like, and sends them to the CPU 801. Reference numeral 900 denotes a communication control unit of the public line 908, and the CPU 901 controls the communication control unit 900. The main body 100 is connected to the main body 100 by an interface 907 such as RS-232C. When a data transfer request is issued and data is transferred from the image forming apparatus via the interface 907, the transfer data is transmitted to the communication control unit. 900 is temporarily stored in a RAM 902 provided in the image forming apparatus 900, and after data transfer from the image forming apparatus is completed, NC
U906 is controlled to establish a communication line connection with the outside, and after the line connection, data is transferred to the outside through the modem 905 and the NCU906. When data is transferred from the outside, the transfer data is temporarily stored in the RAM 903, and the interface 9 is transferred in response to a request from the image forming apparatus.
07, the data is transferred to the image forming apparatus. Here, the data refers to data stored in the main body 100, and the data transfer request refers to an image forming apparatus control abnormality or a frequent occurrence of a paper jam on the main body 100 side, or to a periodical reporting time. In some cases, the request is issued when the data is no longer available, and in other cases, a data request is issued from the external management side. 904 is an input / output port, 909 is R
AM.

The control means 800 and the communication control means 900 are connected via interfaces 805 and 907.
Control data is exchanged between the control unit 800 of the main unit 100 and the communication control unit 900 of the public line 908.

In the image forming apparatus configured as described above, the CPU 801 determines whether or not the display timing of the external input unit display data on the LCD display 701 can be determined whether or not the image forming apparatus main body 100 is operating, and the image forming mode using the operation unit. It is determined from at least one of whether the setting is being performed, whether the data is being displayed on the LCD display 701, and the like, and the RAM of the external input display data is determined based on the determination result.
Since the start of transfer from the 803 to the LCD display 701 is permitted or prohibited, externally input data can be automatically displayed at a timing that does not hinder the operation of the image forming unit.

If the CPU 801 determines that the image forming apparatus main body 100 is in the process of forming an image, the CPU 801 prohibits the start of transfer of the external input display data from the RAM 803 to the LCD display 701. Even if it is held, it is possible to give priority to various state displays accompanying image formation of the image forming apparatus main body 100.

Further, the CPU 801 controls the LCD display 7
01, it is determined that the abnormal state of the image forming apparatus main body 100 is displayed.
Since the transfer start from the third device to the LCD display 701 is prohibited, even if the external input display data is held, the abnormal state of the image forming apparatus main body 100 can be preferentially displayed.

If the CPU 801 determines that the image forming apparatus main body 100 is in the pause state of the image formation and that the image forming mode setting from the operation unit is in the pause state, the CPU 801 transfers the external input display data from the RAM 803 to the LCD display 701. , The external input display data can be displayed at an appropriate timing.

Further, after the transfer of the external input display data from the RAM 803 to the LCD display 701 is completed, when the CPU 801 recognizes the image forming mode setting by the operation unit, the CPU 801 displays the display contents on the LCD display 701 by the external input display. Since the display data is switched to the display data before the data display, if there is any image forming mode setting after the display of the external input display data, the set image forming mode can be immediately displayed.

Further, the CPU 801 sets the image for a predetermined time.
It is determined that the image forming apparatus main body 100 is not performing an image forming operation.
The external input display data on the LCD display 701.
The image forming operation of the image forming means.
It becomes possible to automatically perform the display of data external input in not interfering with the timing.

Further, the CPU 801 instructs the transfer of the external input display data from the RAM 803 to the LCD display 701 at predetermined time intervals based on the external input unit display data holding information of the RAM 803. Display data can be confirmed.

After the power is turned on, the CPU 801 sets the RA
Since the transfer of the external input display data from the RAM 803 to the LCD display 701 is instructed for a predetermined time based on the external input section display data holding information of the M803, the latest external input that has been input and held until the power is turned on. It is possible to confirm the section display data. Further, the CPU 80
1 indicates whether the image forming apparatus main body 100 is operating,
Whether the image forming mode is being set by the unit 600,
At least whether or not data is being displayed on the display 701
In response to one, the modem 905 and the NCU 906
Received from the host computer 999 via the line 908
Whether to display the displayed data on the LCD display 701
Control from the external device via the communication line.
Display data that has no effect on the operation of the image forming means.
It is possible to automatically display the image when the image is displayed.

FIG. 5 is a plan view for explaining the configuration of the operation unit provided on the upper surface of the main body 100 shown in FIG. 3, and is mainly used at the time of the image forming mode selection processing.

In the figure, 601 is an asterisk (*)
The key is pressed by an operator (user) in a setting mode for setting a binding margin or setting a size for erasing a document frame. 627 is a cursor key (up / down key)
Is pressed to select a setting item in the setting mode. Reference numeral 628 denotes an OK key, which is pressed when a setting item in the setting mode is determined. Reference numeral 606 denotes an all reset key which is pressed when returning to the standard mode. Also, when returning from the auto shut-off state to the standard mode, the all reset key 606 is pressed. 604 is clear /
The stop key functions as a clear key during standby and as a stop key during image recording.
The clear / stop key 604 is also used when canceling the set number of copies. The clear / stop key 604 is also depressed when continuous copying is interrupted, and after the copying at the time of depressing ends, the copying operation stops. 6
05 is a copy key. A numeric keypad 603 is pressed when setting the number of copies. It is pressed when setting the asterisk key (*) mode.

A memory key 619 is used to register a mode frequently used by the user. Here, M1
It is configured to be able to register four modes of -M4. Reference numerals 611 and 612 denote image forming density keys which are depressed when manually adjusting the image forming density. An AE key 613 is depressed when automatically adjusting the image forming density according to the document density or when canceling AE (automatic density adjustment) and switching the density adjustment to manual (manual). 60
Reference numeral 7 denotes a copy paper selection key.
The button is pressed when the lower cassette 115, the deck 124, and the multi-bypass tray 150 are selected. Also, RDF20
When an original is placed on the copy paper selection key 607
Is pressed, automatic paper cassette selection (APS) is selected, and a cassette having the same size as the original is automatically selected. Reference numeral 610 denotes an equal-size key, which is depressed when forming an image of the same size (original size).

An automatic scaling key 616 is depressed when automatically designating reduction / enlargement of the image of the original in accordance with the size of the specified transfer sheet. Reference numeral 626 denotes a double-sided key which is pressed to perform double-sided recording from a single-sided original, double-sided recording from a double-sided original, and single-sided recording from a double-sided original. A binding margin key 625 can create a binding margin of a designated length on the left side of the transfer sheet. A photo key 624 is depressed when forming an image on a photo document. Reference numeral 623 denotes a multiplex key, which is pressed when an image is created (combined) on the same side of a transfer sheet from two originals. Reference numeral 620 denotes a document frame erasing key, which is pressed when the user erases a frame of a standard size document. At this time, the size of the document is set by the asterisk key 601. A sheet frame erasing key 621 is depressed when erasing a document frame in accordance with the size of a copy sheet. 61
7, 618 are zoom keys.

Reference numeral 629 denotes a cover mode setting key, which is pressed to create a front cover and a back cover, and to insert a slip sheet. 6
Reference numeral 30 denotes a continuous page copy key which is depressed to continuously copy the left and right sides of a double-page spread. A discharge method selection key 614 is used to select a staple sort, sort, or group discharge method. If a stepped sorter is connected to the recorded paper, a staple sort mode, a sort mode, or a group mode is selected. You can cancel the selection mode. Reference numeral 631 denotes a reservation key which is depressed when starting the setting of the copy mode for the reserved document placed on the reservation tray 210 and when canceling the reservation setting.

Reference numeral 632 denotes a reservation setting key, which is used as a confirmation key when setting the reservation mode. A guide key 633 is used to display a description of a function corresponding to various keys on a message display. Reference numeral 701 denotes an LCD (liquid crystal) type message display (LCD display) for displaying information related to image formation, and displays characters and figures in 96 × 192 dots. For example, the number of image formations set with the numeric keypad 603, fixed-size scaling keys 608, 609,
Displays the copy magnification set with the same-size key 610, zoom keys 617 and 618, the paper size selected with the copy paper selection key 607, a message indicating the status of the main body 100, a guide message indicating the operation procedure, and other various mode setting contents. I do. Reference numeral 704 denotes an AE display, and the AE key 61
Lights up when AE (automatic density adjustment) is selected with 3. Reference numeral 709 denotes a preheating indicator, which is turned on when in a preheating state. Reference numeral 640 denotes a message display key, which is pressed when instructing display of display data input externally. Note that 61
A folding key 5 is depressed when setting a folding mode.
634 is an interrupt key and 635 is an ID key.

When the RDF 200 is used in the standard mode, the setting of one image formation, the density AE mode, the automatic paper selection, the same magnification, and the one-sided image formation from the one-sided original are set. In the standard mode when the RDF 200 is not used, the setting of one image formation, density manual, same size, and one-sided image formation from one-sided original are set. The difference between when the RDF 200 is used and when it is not used is determined by whether or not a document is set on the RDF 200.

Next, transmission and reception of data between the image forming apparatus and the communication control apparatus will be described.

The communication control means 900 always indicates the current state of the image forming apparatus main body 100, such as the power ON / OFF state of the image forming apparatus, the state of whether or not an image can be formed, the number of images to be formed, and whether an image is being formed. The report is also made when a paper jam occurs or an abnormality occurs that makes it impossible to perform an image forming operation. Further, the communication control means 900 has a predetermined transfer condition,
For example, if it is set to report when an abnormality occurs, the data is automatically transferred to the outside when an abnormality is reported from the image forming apparatus main body 100. Here, the data to be transferred is common data composed of an image forming apparatus ID, a transfer reason, a paper jam history, a detailed counter for each color and size, and the like, regardless of the transfer reason. , The total number of images formed at the time of occurrence, and a paper jam code, to which a maximum of 30 images are stored in the communication control means 900 each time a paper jam occurrence report is received from the image forming apparatus. It is.

The transfer conditions are as described above, when an abnormality occurs, every time a paper jam occurs a set number of times, when paper jams of the same paper jam code occur consecutively, and when there is an external request.

Next, a control operation when a paper jam occurs during the operation of the image forming apparatus main body 100 will be described.

When the CPU 801 determines that a paper jam has occurred during operation of the main body 100, the interface 8
05,907, paper jam code, time of occurrence,
Paper jam information such as the current total number of copies is transferred to the RAM 903 of the communication control unit 900. The RAM 903 holds such paper jam information. Then, a transfer condition determination based on a predetermined transfer condition is determined by C
This is performed by the PU 901, and when it is determined that the report should be made, it is transferred to the outside via the modem 905 and the NCU 906. The data to be transferred at this time is the image forming apparatus body 10.
The information includes an ID of 0, a transfer reason, paper jam information, color-specific information, size-specific information, and the number of detailed image formations.

As described above, the back-upable RAM for holding the transmission data in the communication control means 900, for example, the RAM 903, the internal data of the main body 100, the information of the generated paper jam, the history of the generated image forming operation abnormality, etc. And if there is an inquiry from outside, RAM
By returning the data held in 903 to the outside,
Diagnosis and management of each image forming apparatus are performed outside.

However, if the contents of the RAM data become garbled due to a drop in the voltage of the battery to be backed up, external diagnosis and management as described above cannot be performed accurately.

Therefore, as will be described later, the operation status of the RAM 903 which can be backed up is monitored, and when an abnormality is detected, the fact is automatically reported to the outside as shown in FIG. Can be done.

Hereinafter, a message display control operation based on an external instruction in the image forming apparatus according to the present invention will be described with reference to FIGS.

FIG. 6 shows the LCD display 701 shown in FIG.
FIG. 4 is a plan view showing an example of a message display with respect to, which is composed of, for example, a dot matrix of 128 dots vertically and 256 dots horizontally, and is capable of displaying a maximum of 8 × 16 characters or graphical information.

As shown in this figure, for example, when displaying a message “The next maintenance is July 30”, data for one screen is displayed based on message information (code information) transferred from the outside. The CPU 801 selects from the ROM 806 and transmits the dot data to the LCD display 701, or the CPU 801 transmits a message (dot data) transferred from the outside to the LCD display 701 as described later. Do.

FIG. 7 is a flowchart showing an example of a display control procedure of the first external input data in the image forming apparatus according to the present invention. Note that (1) to (5) show each step.

FIG. 6 shows the state of the external host computer 999.
When the message “Next maintenance is July 30” is displayed on the LCD display 701 as shown in FIG. 6, data for one screen is displayed via the communication control means 900 to display the screen shown in FIG. When transferred from outside,
At this time, it is determined whether the communication process was normal.
(1) If NO, display a message or icon indicating that a communication error has occurred on the LCD display 701 without displaying the received external data (2), and end the processing. Here, the data for one screen may be dot information or character code information.

If the determination in step (1) is YES, that is, if the image forming apparatus has normally received one screen of display data, C serving as a display data control unit is used.
The PU 801 determines whether the image forming apparatus main body 100 is currently performing an image forming operation (3). If YES, the display of the externally input received data is prohibited, and the processing is terminated. At 701, the image forming apparatus main body 10
Judge whether an abnormal condition for 0 is displayed
(4) If YES, display of externally input received data is prohibited and processing is terminated. If NO, display start of external display data is permitted and received by the LCD display 701 and stored in the RAM 803. The display data temporarily stored is displayed (5), and the process is terminated.

FIG. 8 is a flowchart showing an example of a display control procedure of the second external input data in the image forming apparatus according to the present invention. Note that (1) to (3) indicate each step. When an external host computer 999 displays the message “Next maintenance is July 30” on the LCD display 701 as shown in FIG. 6, data for one screen is displayed to display the screen shown in FIG. Is transferred from the outside via the communication control means 900, at this time, it is determined whether or not the communication processing was normal (1). If NO, the processing is terminated without displaying the received external data.

On the other hand, if the determination in step (1) is YES, that is, if the image forming apparatus has normally received one screen of display data, the CPU 801 functioning as a display data control unit is turned on by the image forming apparatus main body 100. It is determined whether or not the image forming operation has been performed and / or the mode setting has not been performed (whether or not the display flag has been set) for a predetermined time or more (2). The display of the temporarily stored display data is permitted, the display data input from the outside is displayed on the LCD display 701 (3), and the process is terminated.

On the other hand, if the determination in step (2) is NO, the processing is terminated in order to prohibit the display of the display data which is externally input and temporarily stored in the RAM 803. In the present embodiment, the determination as to whether the key input and the image forming operation have not been performed is measured by an internal counter when the key input and the image forming operation are not performed. Since the display flag is set, the determination is made from the setting state of the display flag. Hereinafter, the display flag setting processing operation will be described with reference to FIG.

FIG. 9 is a flowchart showing an example of the display flag setting processing procedure shown in FIG. (1)
(7) indicates each step.

First, the CPU 801 clears the display flag in the RAM 803 (1) and clears the internal timer 1.
(2). Next, it is determined whether a key input on the operation unit shown in FIG. 5 has occurred (3). If YES, the process returns to step (1). If NO, it is determined whether the image forming operation has started (4). ), If YES, return to step (1); if NO, count up internal timer 1 (5); determine whether count of internal timer 1 is greater than or equal to a preset value (6); Return to step (3), YES
If so, set the display flag (7) and return to step (2).

Control of the image forming apparatus configured as described above
In the method, there is no operation with the keys on the operation unit for a predetermined time.
(Step (2) in FIG. 8 and Step (2) in FIG. 9).
(1) to (3), (5) to (7)) for a predetermined time
If it is determined that there is no operation with the keys on the operation unit,
The input display data is displayed on the LCD display 701.
(Step (3) in FIG. 8)
Automatically at the timing that does not hinder
It is possible to display the input data. Also,
Whether the image forming apparatus main body 100 has not been operated for a predetermined time
(Step (2) in FIG. 8 and step (2) in FIG. 9).
(1)-(2), (4)-(7)), image formation for a predetermined time
If the apparatus main body 100 determines that the image forming operation is not performed,
Display data input externally to the LCD display 701
Instruct to display (step (3) in FIG. 8)
A timing that does not hinder the image forming operation of the image forming means.
Can automatically display externally input data
It works. FIG. 10 is a flowchart illustrating an example of a display control procedure of the third external input data in the image forming apparatus according to the present invention. Note that (1) to (6) indicate each step.

FIG. 6 shows the state of the external host computer 999.
When the message “Next maintenance is July 30” is displayed on the LCD display 701 as shown in FIG. 6, data for one screen is displayed via the communication control means 900 to display the screen shown in FIG. When transferred from outside,
At this time, it is determined whether the communication process was normal.
(1) If NO, end the process without displaying the received external data.

On the other hand, if the determination in step (1) is YES, that is, if the image forming apparatus has normally received one screen of display data, the CPU 801 functioning as a display data control unit causes the CPU 801 to function as a display data control unit. It is determined whether the image forming operation is being performed (2). If YES, the process waits until the image forming operation is completed.
U801 determines whether or not a display indicating that an abnormal state has occurred is made on LCD display 701 (3), and YES
If NO, the flow returns to step (2). If NO, display of display data which is externally input and temporarily stored in the RAM 803 is permitted.
1 is displayed (4). Next, when it is detected that any key input has occurred on the operation unit (5), the screen displayed before the display data from the outside is displayed again (6).
, And the process ends.

FIG. 11 is a flowchart showing an example of a procedure for holding external input data in the image forming apparatus according to the present invention. (1) and (2) show each step.

FIG. 6 shows an external host computer 999.
When the message “Next maintenance is July 30” is displayed on the LCD display 701 as shown in FIG. 6, data for one screen is displayed via the communication control means 900 to display the screen shown in FIG. 1 transferred from outside
When the display data for the screen is received (1), the received externally input display data for one screen is stored in a predetermined area of the RAM 803 functioning as display data storage means (2).
, And the process ends.

FIG. 12 is a flowchart showing an example of the display control procedure of the fourth external input data in the image forming apparatus according to the present invention. (1) to (8) show each step.

First, the CPU 801 determines whether or not display data is held in the RAM 803 (1).
If O, the process is terminated, and if YES, it is determined whether the message display key 640 shown in FIG.
(2) If NO, end the process; if YES, CPU 8
01 displays the externally input display data already held in the RAM 803 on the LCD display 701 (3).

Next, after confirming the display contents, it is determined whether or not the clear / stop key 604 of the operation section has been pressed (4). If YES, the display data externally input from the LCD display 701 is displayed. With disappearance, RA
The same data on M803 is cleared (5). At this time, RA
If there is display data of an external input which is already held and not displayed in M803, it is displayed on the LCD display 701 (6), and the process proceeds to step (8) and subsequent steps.

On the other hand, if the determination in step (4) is NO, it is determined whether the cursor key 627 or the like has been instructed (7). If YES, the process returns to step (6) to display the undisplayed external input. The data is displayed. If NO, it is determined whether the reset key 606 has been pressed (8). If NO, the process returns to step (4), and if YES, the process ends.

Thus, according to the display data storage capacity of the RAM 803, display data input from the outside can be held and stored until an erasure instruction is given, and the history of display data input from the outside can be easily maintained. Can be managed.

When there is no external display data and the message display key 640 is pressed, the LCD
The display 701 is configured to display that there is no externally input display data.

FIG. 13 is a flowchart showing an example of the display control procedure of the fifth external input data in the image forming apparatus according to the present invention. Note that (1) to (7) indicate each step.

As shown in FIG. 11, when an external host computer 999 displays a message “Next maintenance is July 30” on the LCD 701 as shown in FIG. When the display data for one screen transferred from the outside via the communication control means 900 is received for the data for one screen in order to display the screen to be displayed, the received display data for one screen inputted externally is held in the display data. It is stored in a predetermined area of the RAM 803 functioning as a means.

First, the CPU 801 determines whether or not display data from the outside is stored in the RAM 803 from the setting state of the above-mentioned display flag (1). If NO, the step processing is terminated. If YES, the CPU 801 is determined. When detecting that a certain time has elapsed (2), the external display data stored in the RAM 803 is displayed on the LCD display 7.
01 is displayed (3). Next, when the CPU 801 detects that a predetermined time has elapsed (4), the CPU 801 causes the LCD display 701 to display data on conventional image formation (5).

Next, it is determined whether or not the message display key 640 has been pressed to confirm the displayed message (6). If NO, the process returns to step (2), and an external display is performed every predetermined time. The data and the data relating to image formation are alternately displayed on the LCD display 701.

On the other hand, if the determination in step (6) is YES, the external display data held in the RAM 803 is cleared (7), and the process ends.

FIG. 14 is a flowchart showing an example of a display control procedure of the sixth external input data in the image forming apparatus according to the present invention. Note that (1) to (5) show each step.

As shown in FIG. 11, when the external host computer 999 displays a message “The next maintenance is July 30” on the LCD display 701 as shown in FIG. When the display data for one screen transferred from the outside via the communication control means 900 is received for the data for one screen in order to display the screen to be displayed, the received display data for one screen inputted externally is held in the display data. It is stored in a predetermined area of a RAM 803 functioning as a means (the contents are retained even after the power is turned off by a backup power supply (not shown)).

When the power is turned on, CPU 801
It is determined whether or not external display data is stored in M803 based on the setting state of the display flag described above (1).
If NO, end the step processing.
The U 801 causes the LCD display 701 to display external display data stored in the RAM 803 for a certain period of time as described later (2). Next, it is determined whether the message display key 640 has been pressed to confirm the displayed message (3), and if YES, the external display data stored in the RAM 803 is cleared (4), and the processing is terminated. finish.

Next, in the judgment of step (3), N
In the case of O, it is determined whether a predetermined time has passed (5), and N
If O, the process returns to step (3). If YES, the external display data display process is terminated.

[0097]

As described above, according to the present invention,
The determination means determines whether or not the display timing of the external input section display data on the display means can be determined by determining whether the image forming means is operating, whether the setting means is in the image forming mode setting, whether the display means is displaying data, and the like . At least one
The display control means permits or prohibits the start of transfer of the externally input display data from the display data holding means to the display means based on the determination result. It can be automatically displayed at a timing that does not hinder the operation.

When the determination means determines that the image forming means is in the process of forming an image, the display control means prohibits the start of transfer of the external input display data from the display data holding means to the display means. Even if the input display data is held, it is possible to give priority to various state displays accompanying image formation by the image forming unit.

Further, the display control means, when the determination means determines that the abnormal state of the image forming means is displayed on the display means, starts the transfer of the external input display data from the display data holding means to the display means. Since the display is prohibited, even if the external input display data is held, the abnormal state of the image forming means can be displayed with priority.

When the determining means determines that the image forming means is in the image forming pause state and the setting of the image forming mode by the setting means is in the pause state, the display control means changes the display data holding means of the external input display data. Since the start of transfer to the display means is permitted, external input display data can be displayed at an appropriate timing.

Further, after the transfer of the external input display data from the display data holding means to the display means is completed, the display control means, if the determination means recognizes the image forming mode setting by the setting means, displays the display contents on the display means. Is switched from the external input display data to the display data before the external input display data is displayed, and if there is any image forming mode setting after the external input display data is displayed, the set image forming mode can be immediately displayed. .

The instruction means is provided at a predetermined time by the determination means.
While the image forming means determines that the image forming operation is not performed.
In the case of the above, a table of external input display data for the display means
Instruction, the image forming operation of the image forming unit will not be affected.
Viewing automatically data external input with no timing
It can be carried out.

Further, the instruction means instructs the transfer of the external input display data from the display data holding means to the display means at predetermined time intervals based on the external input section display data holding information of the display data holding means. The user can confirm the display data of the external input unit at any time.

Also, the instruction means instructs the transfer of the external input display data from the display data holding means to the display means for a predetermined time after the power is turned on, based on the external input section display data holding information of the display data holding means. , it is possible to confirm the latest external input Display data entered is held until the power-on. Further, the display control means includes an operation state of the image forming means, an operation state of an operation means for setting an image forming mode of the image forming means, and a display state of a display means for performing display related to control of the image forming means. According to at least one of them, the control means controls whether or not to display the display data received from the external device via the communication line by the communication means on the display means. It can be automatically displayed at a timing that does not hinder the operation of the forming means. Also, check whether there is no operation by the operation means for a predetermined time.
If there is no operation by the operation means for a predetermined time
If it is determined, the display control means is communicated by the communication means.
A finger is displayed to display the received display data on the display means.
Is displayed, there is no problem in setting the image forming mode.
Automatically display externally input data by
it can. Further, the image forming means operates for a predetermined time.
It is determined whether or not there is no
When it is determined that the image forming operation is not performed, the display control is performed.
Means for displaying the display data received by the communication means in the table.
Indicating that the image forming means is to be displayed.
External input automatically at a timing that does not hinder image forming operation
Display of input data can be performed.

Accordingly, there is an effect that display data input from the outside can be displayed at an appropriate timing without interfering with the image forming sequence.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an image forming apparatus according to an exemplary embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of an image forming apparatus according to an exemplary embodiment of the present invention.

3 is a cross-sectional view illustrating a hardware configuration of the image forming apparatus main body illustrated in FIG.

FIG. 4 is a block diagram illustrating a detailed configuration of a control unit and a communication control unit illustrated in FIG. 1;

FIG. 5 is a plan view illustrating a configuration of an operation unit provided on an upper surface of the main body shown in FIG.

FIG. 6 is a plan view showing an example of a message display on the LCD display shown in FIG. 5;

FIG. 7 is a flowchart illustrating an example of a display control procedure of first external input data in the image forming apparatus according to the present invention.

FIG. 8 is a flowchart illustrating an example of a display control procedure of second external input data in the image forming apparatus according to the present invention.

FIG. 9 is a flowchart illustrating an example of a display flag setting processing procedure illustrated in FIG. 8;

FIG. 10 is a flowchart illustrating an example of a display control procedure of third external input data in the image forming apparatus according to the present invention.

FIG. 11 is a flowchart illustrating an example of an external input data holding processing procedure in the image forming apparatus according to the present invention.

FIG. 12 is a flowchart illustrating an example of a display control procedure of fourth external input data in the image forming apparatus according to the present invention.

FIG. 13 is a flowchart illustrating an example of a display control procedure of fifth external input data in the image forming apparatus according to the present invention.

FIG. 14 is a flowchart illustrating an example of a display control procedure of sixth external input data in the image forming apparatus according to the present invention.

[Explanation of symbols]

 701 LCD display 801 CPU 802 ROM 803 RAM 806 ROM 901 CPU 902 902 903 RAM 905 Modem

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 1/00-1/00 108 B41J 29/00-29/70

Claims (11)

(57) [Claims] An image forming means, a control means for controlling the image forming means, a display data holding means for holding data to be displayed, a display means for displaying data transferred from the display data holding means, Communication control means for controlling communication between an external device and the control means; transfer means for transferring the external input display data transmitted from the external device to the display data holding means; and the image forming means Setting means for setting the image forming mode of the following; determining whether or not display timing of the external input section display data on the display means is possible , whether or not the image forming mode is being set by the setting means; Determining means for determining from at least one of display contents; and displaying the external input display data based on a determination result of the determining means. An image forming apparatus comprising: the display control means for permitting or prohibiting the start of transfer to the display means from the chromatography data holding means. 2. The display control device according to claim 1, wherein when the determination unit determines that the image forming unit is forming an image, the display control unit prohibits the start of transfer of the external input display data from the display data holding unit to the display unit. The image forming apparatus according to claim 1. 3. The display control means, when the determination means determines that an abnormal state of the image forming means is displayed on the display means, starts the transfer of the external input display data from the display data holding means to the display means. Claim 1 characterized by being prohibited
The image forming apparatus as described in the above. And a display control unit that, when the determination unit determines that the image forming unit is in the pause state of the image formation and the setting of the image forming mode is in the pause state, the display control unit switches the display data holding unit of the external input display data. 2. The image forming apparatus according to claim 1, wherein start of transfer to the display unit is permitted. 5. The display control means, when the determination means recognizes the setting of the image forming mode by the setting means after the transfer of the external input display data from the display data holding means to the display means, the display content on the display means. 2. The image forming apparatus according to claim 1, wherein the control unit switches the display data from the external input display data to display data before displaying the external input display data. 6. An image forming means, a control means for controlling the image forming means, a display data holding means for holding data to be displayed, a display means for displaying data transferred from the display data holding means, and communication control means for controlling communication with an external device and the control means, a transfer means for the communication control unit transfers the external input display data transmitted from the external device to the display data holding means, before Symbol display means and instruction means for instructing display of the external input section display data to a display control unit configured to prohibit or allow the transfer to the display means from the display data holding means of the external input display data based on the instruction of the instruction means, predetermined Time Is the image forming means not performing an image forming operation?
Determining means for determining whether or not the image forming is performed for a predetermined time by the determining means.
If it is determined that the image forming operation is not performed,
An image forming apparatus for instructing display means to display external input display data . 7. The instructing means instructs the transfer of external input display data from the display data holding means to the display means at predetermined time intervals based on the external input section display data holding information of the display data holding means. The image forming apparatus according to claim 6, wherein 8. An instructing means for instructing, after power-on, transfer of external input display data from the display data holding means to the display means for a predetermined time based on the external input section display data holding information of the display data holding means. 7. The method according to claim 6, wherein
The image forming apparatus as described in the above. 9. An image forming means, an image forming control means for controlling the image forming means, a display means for displaying a control relating to the image forming means, and an image forming mode of the image forming means. Operating means, a communication means for communicating with an external device via a communication line, and a display control means for displaying display data received by the communication means on the display means, wherein the display control means An image control unit that controls whether to display the display data received by the communication unit according to at least one of an operation state of a forming unit, an operation state of the operation unit, and a display state of the display unit. Forming equipment. 10. Image forming means, and the image forming means
Image forming control means for controlling, and control of the image forming means
Display means for displaying the image, and an image of the image forming means.
Operation means for setting an image forming mode, and an external device
Communication means for communicating with the communication means, received by the communication means
Display control means for displaying display data on the display means;
In the method for controlling an image forming apparatus having Determine if there is no operation by the operation means for a predetermined time
And determined that there was no operation by the operation means for a predetermined time.
If received by the communication means to the display control means
Instruct the display means to display display data.
And a control method of the image forming means. 11. Image forming means, and the image forming means
Image forming control means for controlling, and control of the image forming means
Display means for displaying the image, and an image of the image forming means.
Operation means for setting an image forming mode, and an external device
Communication means for communicating with the communication means, received by the communication means
Display control means for displaying display data on the display means;
In the method for controlling an image forming apparatus having Check whether the image forming means has not been operated for a predetermined time.
The image forming means performs an image forming operation for a predetermined time.
If it is determined that there is no communication
Displaying the display data received by the step on the display means.
Control method of image forming means characterized by instructing
Law.