JP3115631B2 - Image forming apparatus and communication device - 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 having a function of controlling communication with an external device through a communication circuit.
And a communication device .

[0002]

2. Description of the Related Art There is a strong demand for the addition and upgrading of various functions to a copying apparatus, the structure and functions of the copying apparatus are becoming more and more complex, and the number of copying apparatuses installed in one company is increasing, and the use and operation of the apparatus are controlled. In addition, for the purpose of maintenance, appropriate and prompt processing of failure repair, etc., normal use conditions and functional data of copying apparatuses are collected and centrally managed by a management department or a specialized company in a company.

For this purpose, the copying apparatus is provided with communication control means,
One specific external device is configured to be able to communicate by a calling communication line by using, for example, a telephone number, and data can be exchanged with an external device installed in a management office or the like periodically or as needed. Is known.

[0004]

However, according to the above-mentioned prior art, a failure of an external device installed at a specific communication destination such as a stored management office or a failure of a communication line connected to the external device. If communication between the external apparatus and the copying apparatus cannot be performed due to a state defect or the like, various information stored in the copying apparatus is not collected by the management source for a long time, and There was a problem with the service to the service.

[0005] Double This invention has been made to solve the problems of the prior art, which is determined the data previously
It is an object of the present invention to provide an image forming apparatus and a communication apparatus capable of reliably and efficiently communicating with any of a number of external devices .

[0006]

For this reason, an image forming apparatus according to the present invention provides an image forming control unit for controlling an image forming operation and a data communication with an external device via a communication line.
Communication means , telephone numbers of a plurality of external devices and a plurality of
Storage means for storing a communication priority for the external device ;
Based on the telephone number and communication priority stored in the storage means
Controlling data communication with an external device by the communication means.
Communication control means, the communication control means comprising: an external device having the highest communication priority
Data communication by the communication means using the telephone number of
If data communication to this external device is incompletely completed,
The telephone number of the external device with the next highest communication priority
Data communication by the communication means using
Communication priority of the external device whose data communication is incompletely terminated
The above object is achieved by a configuration characterized in that the degree is changed to the lowest priority .

[0007]

The communication device according to the present invention has the first storage means for storing data indicating the state of the device and the first storage means stored in an external device via a communication line.
Communication means for transmitting data and telephone numbers of a plurality of external devices
Second storage means for storing a communication priority for a plurality of devices and a telephone number stored in the second storage means.
Data communication by the communication means based on the
Communication control means for controlling communication, said communication control means
Uses the telephone number of the external device with the highest communication priority.
Data communication with the external device.
If it ends incompletely, it has the next highest communication priority
Data communication using the telephone number of the external device
Communication priority of the external device whose data communication is incompletely terminated
The degree is changed to the lowest priority .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an image forming apparatus according to the present invention will be described with reference to embodiments. FIG. 1 is a block diagram illustrating a configuration of a copying apparatus according to an embodiment.

Reference numeral 100 denotes a copying apparatus main body; 800, control means for controlling a copying operation; 900, communication control means (modem board) for transmitting and receiving data to and from an external communication line; and 908, an external communication line. Public line,
Reference numeral 999 denotes a post-computer system which is an external device provided at a management base for managing the copying apparatus.

FIG. 2 shows communication control means (modem board) 9
It is a block diagram which shows the main structure of 00. Reference numeral 901 denotes a central processing unit (hereinafter referred to as a CPU) for controlling communication; 903, a memory (RAM) for temporarily storing communication data;
A modulator / demodulator (modem) modulates the data to be set to 08 and demodulates the data transmitted by the public line 908 into digital communication data, and 906 denotes a network control unit (NCU).

Under the control of the copy control means 800 and the communication control means 900 having the above-described configuration, the copy operation of the copying apparatus 100, storage of data, and communication with an external device via the external communication line 908 are performed.

The copy control means 800 and the communication control means 900 are provided with a plurality of connection information such as a telephone number for connecting to an external device by a built-in CPU and a storage device and a program thereof, communication priority thereof, and connection procedure information. (Program) is stored, and a plurality of communication destinations can be selectively connected to perform communication based on the stored information.

FIG. 3 is a cross-sectional view showing the configuration of the copying apparatus. The configuration and operation will be described with reference to FIG. 100 is a copying apparatus main body, 200 is a circulation type automatic document feeder (hereinafter referred to as RDF) for automatically feeding a document, 300 is a sorter or sorter, and 400 is an automatic computer form feeder (hereinafter referred to as CFF). , RDF20 above
0, the sorter 300 and the CFF 400 are the copying machine body 1
00 can be freely combined and used.

The configuration of the copying apparatus main body 100 will be described below. In FIG. 3, reference numeral 101 denotes a platen glass serving as a platen. Reference numeral 102 denotes an optical system as a document reading unit, and a document illumination lamp (exposure lamp) 10
3, a scanning mirror, a lens, a motor 104, and the like. The original is illuminated by an exposure lamp 103 while scanning by the motor 104, and reflected light from the original is irradiated onto the photosensitive drum 105 by the scanning mirror and the lens. Irradiate.

Around the photosensitive drum 105, a high voltage unit 106, a blank exposure unit 107, a potential sensor 108, a developing unit 109 and a transfer charger 110
, A separation charger 111, and a cleaning device 112, and the photosensitive drum 105 and the like constitute an image recording unit.

The photosensitive drum 105 includes a main motor 113
3 rotates in the direction of the arrow shown in FIG. 3 and is corona-charged by the high-pressure unit 106.
When the reflected light from the document 2 is emitted from 2, an electrostatic latent 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 transfer paper sent from the upper cassette 114 or the lower cassette 115 to the main body 100 by the paper feed rollers 118 and 119 via the pickup rollers 116 and 117 is transferred to the registration roller 120 by the registration roller 120 so that the leading end of the toner image is After the timing is set so that the leading edge of the toner image coincides with the leading edge of the photosensitive drum 105, the toner image is transferred to the photosensitive drum 105, and the toner image is transferred by the transfer charger 110. After this 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 the toner image is fixed by pressurizing and heating, and then discharged out of the main body 100 by the discharge roller 123. Is done. The surface of the photosensitive drum 105 is cleaned by the cleaning device 112.

In the copying apparatus main body 100, for example, 4000
A deck 124 capable of storing a sheet of transfer paper is provided. The lifter 125 of the deck 124 includes a paper feed roller 126
Rises in accordance with the amount of transfer paper so that the transfer paper always contacts.

Reference numeral 127 denotes a paper discharge flapper which switches the path between the double-sided recording side or the multiple recording side and the discharge side (sorter 300). That is, the transfer paper sent from the discharge roller 123 is switched to the double-side recording side or the multiple recording side by the discharge flapper 127. Also, 128
A lower conveyance path guides the transfer sheet sent out from the discharge roller 123 to the re-feed tray 130 with the transfer sheet turned over via the reversing path 129.

Reference numeral 131 denotes a multiplex flapper for switching the path between double-sided recording and multiplex recording. The flapper 131 is tilted to the left to lead the transfer paper directly to the lower transport path 128 without passing through the reverse path 129. Reference numeral 132 denotes a paper feed roller for feeding the transfer paper to the photosensitive drum 105 through the path 133. 13
A discharge roller 4 is disposed near the discharge flapper 127 and discharges the transfer paper 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 copied transfer paper is again turned upside down via the reversing path 129 and the lower transport path 128. It is stored in the paper feed tray 130. At this time, the multiplex flapper 131 is tilted to the right during double-sided recording, and the multiplex flapper 131 is tilted to the left during multiplex recording. At the time of the next backside printing or multiplex printing, the transfer paper stored in the refeed tray 130 is guided to the registration roller 120 of the main body via the path 133 by the feed roller 132 one by one from below.

When the transfer paper is to be inverted and discharged from the copying apparatus main body 100, the discharge flapper 127 is raised upward, the flapper 131 is tilted rightward, and the copied transfer paper is transported to the transport path 129 side for transfer. After the trailing edge of the paper has passed the first feed roller 140,
To the feed roller side, and the discharge roller 134
Turn over the transfer paper and discharge it outside the machine.

Next, the control devices 800 and 900 will be described. FIG. 4 is a block diagram of the control devices 800 and 900 according to the present embodiment. In FIG. 4, reference numeral 800 denotes a control device which constitutes the copy control means for controlling the copy operation of the copying machine main body 100, and 900 denotes an external communication line. A communication line control device constituting the communication control means for controlling communication with the communication line.

Reference numeral 801 denotes a central processing unit (hereinafter, referred to as a CPU) for controlling the entire copying apparatus. Reference numeral 802 denotes a read-only memory (hereinafter, referred to as a ROM) that stores a control procedure (control program) for the main body 100 of the copying apparatus. And C
The PU 801 controls each component device connected via the path according to the control procedure stored in the ROM 802. Reference numeral 803 denotes a random access memory (hereinafter, referred to as a RAM) which is a main storage device used for storing input data, a work storage area, and the like. Reference numeral 804 denotes an input / output unit that outputs a control signal of the CPU 801 to a load of the main motor 113 and the like and a signal from a sensor or the like of the fixing unit 122 and sends the signal to the CPU 801.

Reference numeral 805 denotes a storage unit (backup RAM) for storing connection information such as telephone numbers and connection procedure information (programs) including communication priorities of a plurality of external devices as communication destinations.

A communication line control device 900 for controlling communication with an external device via the external communication line 908 includes:
The CPU 901 controls communication. A storage device (RO) 902 stores communication control, connection procedure programs, and the like.
A M), 907 is a storage means for storing connection information and connection procedure information such as a telephone number, including communication priorities of the external device number Ru communication planned destination der double (program) (backup RAM).

The communication line control device 900 is connected to the control device 800 of the copier main body 100 by RS-232C interfaces 805 and 907.
When data is transferred from the control device 800 of the copying apparatus main body 100 via the 232C interface 907, the transfer data is transferred to the R provided in the communication control device 900.
AM 903 and temporarily holds the control device 80 of the copying apparatus main body.
After the completion of data transfer from 0, the network control unit (hereinafter referred to as NCU) unit 9
In accordance with the connection information and the connection procedure information stored in the storage unit 805 or the storage unit 907, the communication line is connected to an external device, and after the line connection, data is transferred to the outside through the modem 905 and the NCU unit 906. Further, when data transfer is performed from outside, the transfer data is stored in R
AM 903, temporarily holds the copy apparatus main controller 800
RS-232C interface 8 upon request from
05, 907, the control device 8 of the copier main body 100
00 is transferred.

[0029] Incidentally, the copy control section 800 and the communication control unit 900 as described above has a function of storing connection information with a plurality of external devices, the connection proceedings information in the storage unit, and transfers.

Next, the operation panel will be described. FIG.
FIG. 2 is an external view showing an example of an operation panel 600 provided in the copying apparatus main body 100.

Reference numeral 601 denotes an asterisk (*) key.
Used when the operator (user) is in a setting mode such as setting a binding margin amount or setting a size for erasing a document frame. 62
A cursor key 7 is used to select a setting item in the setting mode. Reference numeral 628 denotes an OK key which is used to confirm the setting contents in the setting mode.

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 auto reset key 606 is pressed.

A copy start key (copy start key) 605 is depressed to start copying. A clear / stop key 604 has a clear key function during standby and a stop key function during copy recording. The clear / stop key 604 is pressed to cancel the set number of copies or to interrupt continuous copying. Then, after the copying at the time of the pressing is completed, the copying operation is stopped.

Numeral 603 is a numeric key which is depressed when setting the number of copies. Also used when setting the asterisk (*) mode. A memory key 619 can register a mode frequently used by the user. Here, four modes M1 to M4 can be registered.

Reference numerals 611 and 612 denote copy density keys which are depressed when manually adjusting the copy density. 613 is A
The E key is pressed when automatically adjusting the copy density in accordance with the density of the document, or when canceling AE (automatic density adjustment) and switching the density adjustment to manual (manual).

Reference numeral 607 denotes a copy paper selection key, which is pressed to select the upper paper lifter 119, the lower paper lifter 115, the paper deck 124, and the multi-bypass tray 150. When a document is placed on the RDF 300,
APS (automatic paper cassette selection) can be selected with the copy paper selection key 607. When APS is selected, a cassette having the same size as the original is automatically selected.

Reference numeral 610 denotes an equal-size key, which is depressed when making a copy of the same size (original size). An automatic scaling key 616 is pressed when the image of the document is automatically reduced or enlarged according to the size of the specified transfer sheet.

Reference numeral 626 denotes a double-sided key, which is pressed to make double-sided copying from a single-sided original, double-sided copying from a double-sided original, or single-sided copying from a double-sided original. 625 is a binding margin key,
A binding margin of a designated length can be created on the left side of the transfer paper. A photo key 624 is pressed when copying a photo document. A multiple key 623 is pressed when an image is created (combined) on the same side of the transfer paper 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. 62
Reference numeral 1 denotes a sheet frame erasing key, which is pressed when erasing a document frame in accordance with the copy paper size.

A cover mode setting key 629 is used to create a front cover and a back cover and to insert a slip sheet.
Reference numeral 630 denotes a continuous page copy key, which is used to continuously copy the left and right sides of a two-page spread book.

Reference numeral 614 denotes a discharge method selection key for selecting a staple sort, sort, or group discharge method. When the staple sorter 300 is connected, a staple sort mode, a sort mode, and a group mode for recording paper are set. Selection or cancellation of the selection mode can be performed.

Reference numeral 631 denotes a reservation key.
It is used when starting the setting of the copy mode for the reserved original placed at 0 and when canceling the reserved setting.
Reference numeral 632 denotes a reservation setting key, which is used as a confirmation key when setting the reservation mode. Reference numeral 633 denotes a guide key. Explanations of functions corresponding to various keys are displayed on the message display 7.
Used to display the number 01.

Reference numeral 701 denotes an LCD (liquid crystal) type message display for displaying information relating to copying and communication, and displays characters and figures in 96 × 192 dots.
For example, the number of copies set by the numeric keypad 603, fixed-size scaling keys 608 and 609, the same-size key 610, and the zoom key 61
Copy magnification, copy paper selection key 6 set in 7,618
07, a message indicating the state of the copying apparatus main body 100, a guide message indicating an operation procedure,
Other settings of various modes are displayed.

Reference numeral 704 denotes an AE display, and the AE key 61
Lights when AE (automatic density adjustment) is selected by 3. Reference numeral 709 denotes a preheating indicator, which lights up in a preheating state.

Note that connection information (telephone number, etc.) of the external device
Can be input to the storage device by the asterisk key 601 and the numeric keypad 603, etc.
00, an input key for connection information (telephone number and the like) of an external device (not shown) and a registration key may be provided.

When the RDF 200 is used in the standard mode, the number of copies is set to one, the density AE mode, automatic paper selection, the same size, and the setting of one-sided original to one-sided copy. RDF
In the standard mode when 200 is not used, the number of copies is set to one, the density manual mode is set to the same size, and one-sided original to one-sided copy is 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, connection with an external device, which is a feature of the present invention, will be described.

FIG. 6 is a flowchart for inputting three types of connection information (telephone numbers) to the storage means with priorities.

When a telephone number registration key (not shown) on the operation panel is pressed, the copying apparatus main body shifts to a telephone number registration mode for connection registration (step S101).
In this embodiment, telephone numbers for up to three external devices can be input with priority. In this mode, the user inputs the telephone number of the highest-priority external device to be communicated with the main body of the copying machine, presses the registration key, and stores it (step S102).
Similarly, the second and third order telephone numbers are input and stored (steps S103 and S104).

If the entry and storage of three numbers have been completed when the registration key is pressed, the telephone number registration mode is canceled. The input content is the backup RAM8
05,907.

Based on the connection information by the above input operation, the connection operations are automatically performed in order of priority as described below.

FIG. 7 is a communication flowchart in the embodiment of the copying apparatus registered with the above-mentioned priorities.

When performing communication with an external device, the CPU 801 of the copy control means 800 starts communication by the C of the communication control unit.
Notify the PU 901. CPU901 transfers from backup RAM907, the information about the connection communication hand against an external device having a first priority of the communication in RAM 903,
Based on the information, the communication control unit 900 starts communication with an external device (step S201).

During communication, the CPU 901 monitors the communication state.

However, when the timing of the call comes, the first
If the communication with the external device having the priority of "1" is not possible due to busy or the like, or if a communication error occurs and the communication is incompletely completed (step S202), the CPU 90
1 stores information on a communication procedure with an external device having the second priority from the backup RAM 907 to the RAM 903.
To start transmission (step S203). If the communication of the predetermined content cannot be executed due to the communication failure and the occurrence of the communication error also at the second priority destination (step S
204), and connect to the third priority destination in the same manner as above (step S205).

That is, the connection destination external device is sequentially operated in accordance with the communication priority. If complete communication with the lowest priority external device is not possible, the first
Communication operation with an external device having the priority of.

As described above, the connection operation is automatically performed on a plurality of external devices input in advance in order of priority.

(Other Embodiment) FIG. 8 is a communication flowchart in the second embodiment. In this embodiment, the communication procedure is repeated a plurality of times for one external device until the communication interruption is released. When the connection cannot be established a predetermined number of times, the communication priority is changed.

When performing communication with an external device, the CPU 801 of the copy control unit 800 notifies the communication control unit 900 of the start of communication.
To the CPU 901. The CPU 901 has the RAM 9
From 07, information on the communication procedure for the external device having the first priority is transferred to the RAM 903, and communication with the external device is started based on the information (step S30).
1). During the communication, the CPU 901 monitors the communication state.

However, when the communication with the external device having the first priority is incompletely completed (step S30).
2), the CPU 901 starts a timer (step S3)
03), and wait until the timer value reaches a certain value (step S304).
The CPU 901 restarts communication with the external device having the first priority (steps S305 and S306). The above operation is repeated a certain number of times.

[0061] If none communication certain number of interruption is a priority type changed to lowest-priority, initiate communication with an external device having the next highest priority (step S30
7).

As described above, the communication operation can be performed with respect to the plurality of external devices in the order of priority, and the communication can be efficiently performed by lowering the priority of the destination where communication cannot be performed satisfactorily.

FIG. 9 is a communication flowchart of the third embodiment having a function of erasing the connection information storage of a specific communication connection destination.

When performing communication with an external device, the copy control 8
CPU 801 of the communication control unit
901 is communicated. The CPU 901 transfers, from the RAM 907, information regarding a communication procedure for an external device having a higher priority to the RAM 903, and starts communication with the external device based on the information. (Step S40
1).

During communication, the CPU 901 monitors the communication state.

However, when the communication with the external device having the first priority is incompletely completed (step S40).
2) The CPU 901 activates a timer (step S).
403), and waits until the timer value reaches a certain value (step S404). And after a certain time,
The CPU 901 resumes communication with the external device (steps S305 and S306). The above operation is repeated a certain number of times.

[0067] When the predetermined number of times of communication is terminated incompletely either deletes the related <br/> information to continue communicating the hand of the external device communication fails from RAM907 and RAM 805. In the communication from the next time, communication with the external device is not performed, and communication with the next external device is performed according to the priority.

As described above, the connection information storage of the external device whose communication cannot be satisfied is automatically deleted, and the communication connection with the external device is not performed from the next time. Efficient communication is possible. Also, connection information of a new external device can be stored.

[0069]

As described above, according to the present invention, the telephone numbers of a plurality of external devices and the plurality of
Communication priorities, and have the highest communication priority.
Data communication using the telephone number of the external device.
If data communication to the external device is incompletely completed,
Using the telephone number of the external device with the next highest communication priority
Since data communication is performed, data is
It is possible to reliably communicate with any of the external devices.
You.

Further, an external device in which data communication is incompletely completed.
Change the communication priority of the device to the lowest priority.
When the data communication of the previous
Communication priority, not the external device that has completed
By starting data communication with the external device
External devices that may end data communication incompletely.
Without performing data communication with the device.
Efficiently communicate data to any of a number of external devices
It becomes possible.

[0071]

[0072]

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment.

FIG. 2 is a block diagram of communication control means.

FIG. 3 is a sectional view of the copying apparatus.

FIG. 4 is a block diagram of a control device.

FIG. 5 is an external view of an operation panel.

FIG. 6 is a connection information input flowchart according to one embodiment;

FIG. 7 is a communication flowchart.

FIG. 8 is a communication flowchart of the second embodiment.

FIG. 9 is a communication flowchart of the third embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Copying apparatus body 800 Copying apparatus body control device (copy control means) 900 Communication line control device (communication control means) 801 901 Central processing unit (CPU) 802 902 Read-only memory (ROM) 803 903 Random access Memory (RAM) 805, 907 Storage means (backup RAM) 906 Network control unit (NCU)

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tokuharu Kaneko 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Satoshi Kuroyanagi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inside (72) Inventor Hiroshi Ozaki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Miharu Takizawa 3-30-2, Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hisashi Tahara 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Shinichi Nakamura 3-30-2 Shimomaruko 3-chome, Ota-ku, Tokyo Canon Inc. (72) Invention Person Naoyuki Oki 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Masanori Miyata 3-30-2 Shimomaruko, Ota-ku, Tokyo Yanon within Co., Ltd. (56) Reference Patent Sho 60-90460 (JP, A) JP Akira 64-44669 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) H04M 11 / 00-11/10 H04M 1/27

Claims (9)

(57) [Claims] An image forming control unit for controlling an image forming operation, a communication unit for performing data communication with an external device via a communication line, a telephone number of a plurality of external devices, and a plurality of external devices Through
Storage means for storing signal priority, the telephone number and the communication priority stored in said storage means
Data communication with an external device by the communication means based on the
An image forming apparatus and a communication control means for controlling said communication control means, external instrumentation with the highest communication priority
Data communication by the communication means using the telephone number of
Data communication to this external device was incompletely completed.
The telephone number of the external device with the next highest priority.
Data communication using the communication means using
Communication priority of the external device whose data communication is incompletely terminated
An image forming apparatus wherein the degree is changed to the lowest priority . 2. A telephone number of a plurality of external devices and a plurality of external devices.
The image forming apparatus according to claim 1, further comprising an input unit configured to input a communication priority for the apparatus. 3. The communication control means according to claim 1, wherein said communication control means has the highest communication priority.
Data communication to an external device
The communication priority of the external device is set to the lowest priority.
The image forming apparatus according to claim 1 Symbol mounting and changing to. 4. The communication control means according to claim 1, wherein said communication control means has the highest communication priority.
Data communication to an external device
To the external device with the next highest communication priority.
Claim 1 Symbol placing the image forming apparatus and performing a Data Communications. 5. A first memory for storing data indicating a state of a device.
Storage means, and storage in the first storage means via a communication line to an external device.
Communication means for transmitting the extracted data , telephone numbers of a plurality of external devices, and communication superiority to the plurality of devices.
Second storage means for storing the priorities, and telephone numbers and communication priority stored in the second storage means.
Controlling the data communication by the communication means based on the priorities;
Communication control means, the communication control means having the highest communication priority.
Data communication using the telephone number of the
If the data communication to
Data communication using the telephone number of the external device with communication priority
Communication and incomplete data communication
A communication device wherein the communication priority of the device is changed to the lowest priority . 6. The communication device according to claim 5, wherein the device is an image forming device. 7. A telephone number of a plurality of external devices and a plurality of external devices.
It is necessary to have input means for inputting the communication priority for the device.
The communication device according to claim 5, wherein: 8. The communication control means having the highest communication priority.
Data communication to an external device
The communication priority of the external device is set to the lowest priority.
The communication device according to claim 5, wherein the communication device is changed to: 9. The communication control means having the highest communication priority.
Data communication to an external device
To the external device with the next highest communication priority.
6. The communication device according to claim 5, wherein data communication is performed.
Place.