JPH0541788A - Picture communication equipment - Google Patents

Abstract

PURPOSE:To quickly terminate the processing of the picture at a picture transmission side by using a substitute terminal equipment implementing substitute reception even in the case of a reception fault. CONSTITUTION:The program of a ROM 2 checks the presence of the operation indicating the transmission request of a user from a panel 5 and when the operation is not present, the presence of a reception request from a line is checked. When the operation is present thereon, the presence of the fault in a recording mechanism such as cutting and jamming of the paper sheets is checked, in the case of no presence the line is connected, a picture is received and outputted to a printer 7 to interrupt the line. Furthermore, when the fault is present, a session start inverse RSSN response storing the substitute terminal equipment number is sent to reject the connection. Thus, the number of the substitute terminal equipment of the receiver side terminal equipment is registered and when a fault is present on the reception side terminal equipment, the number of the substitute terminal equipment is sent to the transmission side terminal equipment. The transmission side terminal equipment receiving it sends the number to the substitute terminal equipment again, then even when the fault of the reception side terminal equipment is not released, the transmission side terminal equipment sends a picture to the substitute terminal equipment and the job of the transmission side terminal equipment is quickly terminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image communication apparatus, and more particularly to an image communication apparatus which rejects reception due to a failure of a receiving mechanism of a receiving side apparatus.

[0002]

2. Description of the Related Art Conventionally, between facsimile machines, before transmission of an image, if a failure occurs in a receiving terminal due to a paper out of a recording mechanism, a paper jam, an overflow of a received image memory, etc., a reception refusal is given. I am supposed to do it.

When the reception is rejected, the transmission side terminal suspends transmission or redials (retry transmission) to the same reception side terminal, as in the case where the reception side is busy.

[0004]

However, the above-mentioned conventional example has a drawback that the sending terminal cannot send an image to the receiving terminal unless the failure of the receiving terminal is cleared. In particular, when the user of the receiving terminal is not aware of the failure, useless call processing is repeated,
In addition, if necessary, the sender must request the receiver to recover by telephone contact or the like, and there is a problem that the sender is not responsible for the reception failure, and the sender is annoyed.

An object of the present invention is to solve the above problems and to provide an image communication apparatus capable of promptly ending the image transmission on the transmitting side even in the case of a failure on the receiving side.

[0006]

In order to solve the above problems, in the present invention, in an image communication apparatus which rejects reception due to a failure of the receiving mechanism of the receiving side apparatus, the receiving side apparatus is informed of the reception failure. In this case, a means for registering a substitute terminal for performing the substitute reception is provided, and in the case of a reception failure, the substitute terminal receives the image.

[0007]

According to the above construction, the processing on the image transmitting side can be promptly ended by using the substitute terminal for performing the substitute reception even in the case of the reception failure.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows a communication sequence by the facsimile apparatus of the present invention. Here, the G4 facsimile procedure is illustrated, and since the present invention does not depend on the type of circuit network (circuit switching, packet switching, etc.), FIG. 1 shows a communication sequence of the session layer and above.

First, the sender terminal sends a CSS (session start) command, and if there is a failure in the receiver terminal, an RSSN (session start negative) response is sent from the receiver side.

In the present invention, when the receiving side terminal has a failure, by including the acting terminal number in the NSC code of the RSSN response, the transmitting side is instructed as to the acting terminal which should receive the manuscript instead.

As a result, the transmitting terminal transmits the CSS command to the designated proxy terminal, and the corresponding RS
An SP (session start affirmation) response is received.

The sending terminal sends a CDCL (document function list) command and receives an RDCLP (document function list affirmative) response to confirm the terminal function.

The sending terminal sends a CDS (start document) command, sends CDUI data (document user information) including an image, sends a CDE (end document) command, and sends an RDEP (affirm document end) response. To receive.

The transmitting terminal is CSE (end of session)
The command is transmitted, the RSEP (acknowledge session end) response is received, and the session is ended.

By such a procedure, the transmitting side can surely transmit the original, so that there is no problem of repeating the useless redial as in the conventional case. On the receiving side, if the proxy terminal is set in the device in advance, the above processing can be automatically performed.

FIG. 2 shows the structure of an image communication apparatus for performing the above processing.

In FIG. 2, reference numeral 1 is a CPU that controls the entire facsimile apparatus, and controls the operation of the apparatus according to a program stored in the ROM 2. Reference numeral 3 is a RAM that stores various data and images.

A code 4 is a coder for compressing / decompressing an image by encoding / decoding an MH, MR, MMR code or the like.
It is a decoder.

The operation panel 5 is composed of an LCD display and a keyboard such as ten keys and function keys, and is used for a user interface. In particular, in this embodiment, the operation panel 5 is used for transmission and registration of the substitute number.

The reader 6 is composed of a CCD line sensor, a document feeding system, etc., and is used for reading a document image.

The printer 7 is composed of a thermal recording head, a laser beam printer mechanism, a recording paper conveying system, etc., and is used for recording a received image or recording an image read by the reader 6 at the time of copying a document.

Reference numeral 8 is C for performing a line interface.
The CU (communication control unit) performs connection exchange up to the transport layer, or modulation / demodulation of procedure signals and image signals.

FIG. 3 is a flowchart of the program stored in the ROM 2 of the present invention. Here, both the transmission process and the reception process are shown.

In step S1, it is determined whether or not there is an operation (start key operation or the like) indicating a transmission request from the user from the operation panel 5. If there is a transmission request, step S
The line is connected in 2 and it is determined in step S3 whether there is a connection error. Here, it is determined whether the RSSN response of FIG. 1 is received, and if there is no connection error, step S
The image read by the reader 6 (or the image already stored in the image memory) is transmitted in step 4, and the line is disconnected in step S5.

On the other hand, if there is a connection error in step S3, it is determined whether or not the substitute terminal number is included in the NSC code of the RSSN response received in step S6.

If the partner station is an equivalent machine and the substitute terminal number is stored in the NSC code of the RSSN response, the line is connected to the substitute terminal using that number in step S7, and there is a connection error in step S8. to decide.

If there is no connection error, the image read by the reader 6 (or the image already stored in the image memory) is transmitted in step S9, and the line is disconnected in step S10.

If there is a connection error in step S8, or if there is no proxy terminal number in step S6, the process ends.

Next, the processing on the receiving side will be described. On the other hand, if there is no transmission request in step S1, it is determined in step S11 whether there is a reception request from the line. If there is a reception request, it is determined in step S12 whether or not a failure such as a paper out of the recording mechanism, a paper jam, or an overflow of the reception image memory has occurred.

If there is no failure, the line is connected in step S13, the image is received and output to the printer 7 in step S14, and the line is disconnected in step S15.

If there is a failure in step S12, the connection is rejected by transmitting an RSSN response containing the proxy terminal number in step S16.

According to the above embodiment, the number of the substitute terminal of the receiving side terminal is registered, and if the receiving side terminal has a failure, the number of the substitute terminal is transmitted to the transmitting side terminal and the substitute terminal number is received. Even if the failure of the receiving terminal is not cleared, the sending terminal can send the image to the acting terminal even if the failure of the receiving terminal is not canceled, and the redundant redial is repeated as in the past. It is possible to quickly end the work of the sending side terminal without causing any trouble.

The substitute terminal number is previously registered in the RAM 3 or the like by the user using the operation panel 5.
For this registration processing, the user interface method used in the known telephone number registration processing can be used.

It is conceivable that not only a single proxy terminal number but also a plurality of proxy terminal numbers are registered, and in the case of reception refusal, all of them are notified to the transmitting side. On the transmitting side, it is conceivable to sequentially try transmission to each proxy terminal according to an appropriate priority order, for example, the storage order in the RSSN response.

Further, in the embodiment shown in FIG. 3, if the transmission to the proxy terminal fails in step S8, the process is terminated, but naturally the proxy terminal may also register the next proxy terminal. Therefore, it is possible to return from step S8 to step S6.

In the above embodiment, when the receiving side terminal has a failure, the transmitting side terminal immediately transmits to the proxy terminal. However, an embodiment is conceivable in which the transmitting terminal retransmits to the receiving terminal several times and then transmits to the proxy terminal.

Further, in the above embodiment, when a failure occurs on the receiving side, the reception is rejected immediately and the transmitting side (calling side) transmits to the substitute terminal. If a large-capacity image memory is installed on the side, the image memory may perform proxy reception, and the receiving side may transmit the image data in the image memory to the proxy terminal. This can reduce the burden on the transmitting side. An example of this (processing on the receiving side) is shown in FIG.

In step S101, a failure of the receiving function,
Here, in particular, the failure of the printer 7, that is, the presence or absence of a paper break or a paper jam in the recording mechanism is detected.

If there is no fault in the printer 7, step S
In steps 102, S103, and S104, normal reception processing including line connection, reception and print processing, and line disconnection processing is performed.

On the other hand, if there is a fault in the printer 7,
In step S105, the line is connected, and in step S106, the image data is received by the image memory as a proxy. The image memory is assumed to be composed of the area of the RAM 3 or a magnetic disk. If interception is completed normally,
Control goes to step S108.

In step S108, a call is made to the proxy terminal registered in advance as described above, and step S1
At 09, a connection error is detected. In case of connection error,
In step S115, a timer for redialing to the proxy terminal is started, and thereafter, redialing is started a predetermined number of times (until success) by the timer interruption. This redial process is the same as the conventional one.

When the connection is successful in step S109, the image data received by the proxy in the image memory in step S110 can be transmitted to the proxy terminal, and the image can be recorded by using the printer of the normal proxy terminal.

On the other hand, if an address error (memory overflow) occurs during proxy reception to the image memory, the process proceeds from step S107 to S112. Step S11
At 2, the line is disconnected, at step S13, an error message indicating that the paper is out, a jam, or the like, or an error message indicating that the reception has failed is displayed. This error display is performed by the display output from the operation panel 5, the buzzer sounding, or the like.

With such processing, the printer of the proxy terminal can be used to perform image recording, and the processing of the transmitting side can be performed promptly without burdening the transmitting side which is not responsible for reception failure. It is possible to terminate the processing and perform the substitute reception to another terminal at the communication cost of the receiving side.

Although the G4 procedure is assumed above, the image communication procedure is not limited to this. For example, in the G3 procedure, equivalent processing can be performed by designating a substitute terminal using an optional procedure signal such as a non-standard device signal.

The reception failure is not limited to the failure of the printer, and even if the reception failure occurs for other reasons, the same control can be performed as long as the communication system is alive.

[0048]

As is apparent from the above, according to the present invention, in an image communication device that rejects reception due to a failure of the receiving mechanism of the receiving side device, if the receiving side device has a reception failure, substitute reception is performed. Providing a means to register the acting terminal,
If a reception failure occurs, the proxy terminal is configured to receive images, so even if a reception failure occurs,
There is an excellent effect that the processing on the image transmitting side can be promptly ended by using the proxy terminal which receives the proxy even if the failure of the terminal is not cleared and is continued.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a communication sequence of the present invention.

FIG. 2 is a block diagram of a facsimile apparatus adopting the present invention.

3 is a flowchart of a control procedure stored in the ROM of FIG.

FIG. 4 is a flowchart showing an example of different control procedures.

[Explanation of symbols]

 1 CPU 2 ROM 3 RAM 4 coder / decoder 5 operation panel 6 reader 7 printer 8 CCU

Claims (3)

[Claims] 1. An image communication apparatus that rejects reception due to a failure of a receiving mechanism of a receiving apparatus, wherein the receiving apparatus is provided with means for registering a substitute terminal for performing alternate reception in the case of a receiving failure, and a receiving failure occurs. In the case of, the image communication device is characterized in that the substitute terminal receives the image. 2. When a reception failure occurs, the receiving side transmits the identification information of the substitute terminal registered in the transmitting side, and the transmitting side uses this information to perform image transmission to the substitute terminal. Item 1. The image communication device according to item 1. 3. The receiving side receives the image data to be received in the image memory, and the receiving side sends the image data received in the image memory to the proxy terminal when the reception failure occurs. 1. The image communication device according to 1.