JPS6328162A - Remote diagnosing system for facsimile equipment - Google Patents

Abstract

PURPOSE:To diagnose the presence/absence of each fault of plural circuits in a facsimile equipment by a control from a remote place, by returning a diagnosing data selectively via a circuit corresponding to the facsimile equipment to be diagnosed, corresponding to plural kinds of diagnosing modes set in advance. CONSTITUTION:At the time of 'returning at a communication control part 2', a diagnosing mode signal is transmitted from the instruction signal generating part 13 of a remote controller 11 to the communication control part 2 of the facimile equipment 1 to be diagnosed. A control part 9 sends out the instruction signal so as to set a signal l1 at a high level, and signals l2 and l3 at low levels to open an AND gate 82, and close AND gates 83 and 64 to a diagnosis selection part 81. The diagnosing data passes the AND gate 82, and an OR gate 85, through the communication control part 2 of the facsimile equipment 1, and is returned again to the communication control part 2. A returned diagnosing data compares the data transmitted previously to the facsimile equipment 1 by a data check part 14, with the data received at this time, and decides whether the data is correct or not.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a remote diagnosis method for facsimile machines.

[Conventional technology]

Conventionally, in this type of remote diagnosis method for facsimile machines, the facsimile machine alone has been the subject of diagnosis.

[Problem that the invention seeks to solve]

In the conventional remote diagnosis method for facsimile machines mentioned above,
Since the object of diagnosis is to check the operation of the facsimile machine as a single unit, there is a drawback that it is impossible to determine which component of the facsimile machine has a fault, and the resolution of the diagnosis is low.

SUMMARY OF THE INVENTION An object of the present invention is to provide a remote diagnosis method for a facsimile machine that can diagnose each preset component.

[Means for solving problems]

In the remote diagnosis method for a facsimile machine of the present invention, diagnostic data received by a communication control unit through a line is preset in accordance with an instruction signal specifying each of a plurality of types of diagnosis modes, and is transmitted through a circuit element specified by the instruction signal. a facsimile machine comprising a selective return circuit that returns the signal to the communication control unit; an instruction signal generation unit connected to the facsimile machine via the line and sending the instruction signal to the facsimile machine; and data received from the facsimile machine. The data check unit compares the data with preset data and determines whether they match, and a remote control device that controls the data.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

In FIG. 1, a facsimile device 1 includes a communication control section 2, a decoding section 3, a memory section 4, a recording section 5, an original scanning section 6, an encoding section 7, a selection folding circuit 8, and a control section 2. Part 9
including.

The communication control unit 2 performs communication control for communicating with other devices through the line 30.

The decoding unit 3 performs decoding to convert the received encoded image data into an original image signal.

The memory unit 4 stores decoded image signals and image signals read by the document scanning unit 6.

The recording section 5 records the decoded image signal in the memory section 4 on recording paper.

The document scanning section 6 includes a photoelectric conversion element and a scanning optical system, scans the document, generates an image signal, and stores it in the memory section 4 .

The encoding unit 7 encodes the image signal read by the original scanning unit 6 and stored in the memory unit 4, and converts it into image data.

The selection return circuit 8 includes a diagnosis selection section 81, AND gates 82 to 84, and an OR gate 85, and selects a route for diagnostic data according to instructions from the control section 9.

The control unit 9 is a communication control unit 2. Decoding unit 3. Memory section 4. Recording section 5. Original scanning unit 6. Encoding unit 7 and diagnosis selection unit 81
6. The remote control device 11 includes a communication control section 12, an instruction signal generation section 13, and a data check section 14.

The communication control unit 12 performs communication control for communicating with the facsimile machine 1 to be diagnosed through the line 30.

The instruction signal generating section 13 instructs selection of the diagnostic mode and controls the communication control section 12 and the data checking section 14.

The data check unit 14 determines whether the data received from the line 30 via the communication control unit 12 matches the information corresponding to each diagnostic mode set in advance.

Next, the operation of the embodiment shown in FIG. 1 will be explained.

In this embodiment, there are three types of diagnostic modes: ``communication control unit 2 return'', ``3M signal sub-control 2 and decoding unit 3 return'', and ``communication control unit 2, decoding unit 3, and encoding unit 7 return''. Set.

First, when "communication control unit 2 returns", the remote control device 11
An instruction signal that instructs the communication control unit loopback mode as a diagnostic mode signal is sent from the instruction signal generation unit 13 of the communication control unit 13.
The data is transmitted from the line 30 to the communication control unit 2 of the facsimile machine 1 to be diagnosed.

The communication control unit 2 transfers the received instruction signal to the control unit 9.

The control section 9 sends a signal 2 to the diagnosis selection section 81 in order to open an AND gate 82 and close AND gates 83 and 84.
An instruction signal is sent to set □ to a high level (hereinafter referred to as "H") and to set signals 2□ and 13 to a low level (hereinafter referred to as L'').

Thereafter, the control section 9 notifies the communication control section 2 that the communication control section return mode has been designated, and instructs the communication control section 2 to start communication.

After the communication control unit 2 exchanges a predetermined communication procedure with the communication control unit 12 of the remote control device 11, it starts communicating diagnostic data.

The diagnostic data passes through the communication control section 2 of the facsimile device 1, passes through an AND gate 82 and an OR gate 85, and returns to the communication control section 2 again. The returned diagnostic data is sent to the remote control device 11 via the line 30, and the data check section 14 compares the data previously sent to the facsimile device 1 with all received data to determine whether it is normal or abnormal. judge.

As a result, the communication control section 2 of the facsimile device 1 is diagnosed.

Diagnosis of “communication control unit 2 return” i! When the 7r result is normal, next, diagnosis of "communication control section 2 and decoding section 3 loopback" is performed.

In the case of this diagnosis, the diagnosis selection section 81 selects the signals 11 and ! !
3 to L" and signal 2□ to H", the diagnostic data sent to the facsimile machine 1 is sent from the communication control section 2 to the decoding section 3, decoded, and returned to the communication control section 2. The diagnostic operation is the same as the above-mentioned [communication control unit 2 return] except that the operation of the communication control unit 2 and decoding unit 3 is checked.

When the diagnosis result of "communication control section 2 and decoding section 3 return" is normal, next, diagnosis of "communication control section 2, decoding section 3, and encoding section 7 return" is performed.

In the case of this diagnosis, the diagnosis selection section 81 sends a signal! l and 12
is set to "L" and the signal 13 is set to "H", the diagnostic data sent to the facsimile device 1 is sent from the communication control section 2 to the decoding section 3, decoded, stored in the memory section 4, and then stored in the memory section 4. The operation is sent to the encoding unit 7, encoded, and returned to the communication control unit 2. Decoding unit 3. Memory section 4
The diagnosis operation is the same as the above-mentioned "communication control unit 2 return" except that the operation of the encoding unit 7 is checked.

Through this diagnosis, the communication control section 2, decoding section 3, memory section 4, and encoding section 7 are diagnosed.

As described above, by sequentially executing the three types of diagnostic modes, failures in three types of circuit elements, including the communication control unit 2, decoding unit 3, memory unit 4, and encoding unit 7, are isolated and diagnosed. can.

〔Effect of the invention〕

As explained above, the facsimile machine remote diagnosis method of the present invention selectively returns diagnostic data via the corresponding circuit of the facsimile machine to be diagnosed according to a plurality of preset diagnostic modes. This has the effect of improving the operational efficiency of facsimile communication, since the presence or absence of a fault can be diagnosed in each of the plurality of circuits of the facsimile machine by controlling from a remote location.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 1...Facsimile device, 2...Communication control section, 3.
...Decoding section, 4...Memory section, 5...Recording section, 6
... Original scanning section, 7. Encoding section, 8. Selection folding circuit, 11. Remote control device, 12. Communication control section, 13. ...Data check section, 30...Line, 81...Diagnosis selection section, 8
2 to 84...AND gate, 85...OR gate.

Claims (1)

[Claims] A selection return circuit that presets diagnostic data received by the communication control unit through a line and loops back to the communication control unit via the circuit element specified by the instruction signal in accordance with an instruction signal specifying each of a plurality of diagnostic modes. a facsimile device comprising a facsimile device; an instruction signal generation unit connected to the facsimile device via the line and transmitting the instruction signal to the facsimile device; and a data received from the facsimile device compared with preset data to determine if they match. 1. A remote diagnosis method for a facsimile machine, comprising: a remote control device having a data check unit that determines whether the facsimile machine is not present or not;