JPS5817456A - Fault diagnosing method of copying machine - Google Patents

Abstract

PURPOSE:To execute a desired fault diagnosis, by using a console of a copying machine, which is controlled by a computer and has both a copying mode and a fault diagnosing mode, as an operator and indicator, optionally storing a diagnosis program in a memory by a service engineer, and also selecting a suitable one from a control subroutine, a diagnostic routine group, etc. stored in advance in the memory. CONSTITUTION:In a fault diagnosing mode of a copying machine, a working area 51 and an optional program area 52 are provided on an RAM 5, and in the optional program area 52, an optional program which a service engineer has inputted by operating various keys on a console 2 is stored. In this regard, this RAM5 can be used as a working area for controlling the copying machine, in a regular copying mode. In case when the copying machine has been switched to the fault diagnosing mode, the service engineer is able to optionally input a program or a data by operating various keys on the console 2, and also contents of the memory can be displayed as necessary.

Description

[Detailed description of the invention] The present invention relates to a method for diagnosing a failure of a copying machine.

The console of the copying machine, which is controlled by a computer and has a copying mode and a fault diagnosis mode, is used as an operation and display device, and Service Enshare optionally stores a diagnostic program in the memory and, if necessary,
The present invention relates to a method of diagnosing a failure of a copying machine in which a desired failure diagnosis is executed by selecting and executing an appropriate one from a group of control subroutines, diagnostic routines, etc. stored in advance in a memory.

FIG. 1 is a block diagram schematically showing the configuration of a conventional copying machine that has a normal copying mode and a failure diagnosis mode and is controlled by a computer.

In the figure, 1 is a copying machine body, 2 is a console attached to the copying machine body, 3 is a central processing unit (hereinafter abbreviated as CPU), 4 is a read-only memory (hereinafter abbreviated as ROM), 5 is random access memory (hereinafter referred to as RAM)
), 6 is σ mountain.

This is an input/output control section (hereinafter abbreviated as IOC) that connects a combiator section including a ROM 4, a RAM 5, etc., and external devices such as a U-photograph zero body 1 and a console 2.

FIG. 2 is a plan view showing an example of the arrangement of various operation keys and displays on the console 2. FIG. 11 is a copy stop key, 12 is a copy count number display, 13 is a copy set number display, 14 is a back document number display,
15F! Numeric keypad, 16 is document size key, 17 is 'i'
clear key, 18 is an interrupt copy key, and 19 is a document stop key; 1) a mode changeover switch for switching between normal copy mode and failure diagnosis mode; or provided either internally.

FIG. 3 is a conceptual diagram showing an example of memory area allocation of the ROM 4. As is clear from the figure, the ROM 4 includes a control main routine program area 41, a control subroutine program group area 42, a monitor program area 43%, and a failure diagnosis routine program area 4.
4th class is provided.

Each program is memorized.

In ordinary copy cards, Natsume (as it is known)
Necessary data such as the number of copies set, original size, etc. are input from the console 2, and then a copy cycle is started. The copying machine main body 1 is controlled by a control main routine program and a control subroutine program group stored in advance in the ROM 4, and performs a predetermined copying operation.

When the copying machine 9 is placed in a failure diagnosis mode by switching a mode changeover switch (not shown), the functions of various key switches, displays, etc. on the ':1 console 2 are also changed to suit the mode.

That is, in the failure diagnosis mode, the service engineer uses various key switches on the console 2 to
It is possible to select and designate one of the failure diagnosis routine programs stored in advance in the OM4 and execute it. Conventionally, this has been used to diagnose copying machine failures.

However, in the conventional method as described above, the number and types of fault diagnosis programs are limited, and these programs are combined with each other or with a control program during copy printing. I can't do it.

For this reason, it is often impossible to perform efficient and effective diagnosis by giving the copying machine optimal control according to the failure situation and inspection purpose, and it takes a long time to diagnose. The object of the present invention is to improve the above-mentioned drawbacks, and to provide the most suitable and appropriate method to meet the failure state or inspection purpose of a copying machine. The present invention provides a method for diagnosing a fault in a copying machine, and a method for diagnosing a fault in a copying machine.

To achieve the above object, the present invention enables a service engineer to input any program by operating keys on the console in the failure diagnosis mode of the copying machine, and further, as necessary, An appropriate program can be called from among the diagnostic routine program details and control subroutine programs stored in memory in advance, and can be executed in combination with other programs. FIG. 4 is a conceptual diagram showing an example of memory area allocation of the RAM 5 in an embodiment of the present invention. In the failure diagnosis mode of the copying machine, the RAM 5 contains:

Working area 51 and optional grogram area 52
is provided, and the arbitrary program area 52 stores arbitrary programs inputted by the service engineer by operating various keys on the console 2. Note that this RAM 5 stores 1 in the normal copy mode.
It can be used as a working area for copying machine control.

In the case of the present invention, when the copying machine is switched to the failure diagnosis mode, the service engineer can arbitrarily input programs and data by operating various keys on the console 2, as described above. t'l tI
i ″<1t - to Hibiki -4iii
iii1 Food! ! It must be possible to display the contents of the memory in accordance with The following is an example of the method for diagnosing a failure of a copying machine according to the present invention with reference to the attached drawings.
A. When diagnosing a fault, the service engineer first switches the copy 41& to the fault diagnosis mode. next,
Create a program for diagnosing equipment failures and solving problems using the machine f& or other language, and use the operation keys on the console 2 to run the program in the arbitrary program area 52 in the RAM 5. 0 At this time, RAM
The start address of area 52 in 5 is key 15.1.
6 and 17 can be arbitrarily specified. Display the specified address! 12 and 13. 1
1. The instruction or data to be stored at the specified address is likewise set by keys 15, 16 and 18). At the same time, the content of the command or data is key 1
1 is displayed in hexadecimal display 1614.

Note that the above-mentioned program that the service engineer inputs from the console 2 into the arbitrary program area may be one that operates independently, or may be one that operates independently.
Refers to part or all of each program of the control main routine, the same blue routine group, the monitor routine, and the diagnostic routine group stored in advance in the allocation areas 41 to 44 (
In other words, it may be something that jumps to these locations.

That is, this program uses console 2, ROM 4,
All parts of the combinator such as RAM5 and 10C6 can be accessed.

To confirm the program input from the console 2 or check i in the memory, as mentioned above and clear from 9 and Toro, specify the target address using keys 15, 16 and 17 on the console 2, then press =? This can be done by pressing -10, 11 and then displaying the contents in hexadecimal notation on display 1!14. '? Specify the start address using -15, 16 and 17, and -+- on console 2.
By pressing 19, execution of the program can be started.

As is clear from the above description, according to the present invention, the service engineer uses the operation keys of the console 2 to
The copying machine can be made to perform one operation or the number of vl operations required for fault diagnosis in any combination, and the results can be displayed.

Next, as a specific example, an example in which "measuring lens movement time" is performed using a subroutine program group for controlling a copying machine and a part of a diagnostic program according to the present invention will be described below. explain.

It is well known that changing the reduction ratio of a copying machine involves moving the lens position.

The time it takes for the lens to move from one reduction position to another is predetermined to be a constant value.

Now, as part of troubleshooting or inspection of a copying machine, it is assumed that it becomes necessary to measure the time required for the lens to move from a reduction ratio of 10 (1 position) to a 5 (1 position).

Measuring this time requires the operations ① to ② shown below.

■ Initialize the lens to the 100% position and the time counter to zero.

■ Drive the lens movement motor in the 50% direction.

- While the lens is moving, the time counter is incremented by 1, for example, every 1 msec.

■ Detects whether the lens has reached the 50% position ■ Repeat steps ■ to ■ above.

■ When the lens reaches the 50% position, the camera drive is stopped. ■ The contents of the time counter at this time are converted into data that can be displayed once and displayed.

■ For the next trial, return the lens to the 100-position again and initialize the time counter to zero.

■ If there is no next attempt, return to the monitor.

The flowchart of the operations ① to ① described above is shown in FIG. 5.

The service engineer creates a program in a suitable language such as machine language according to chart 70 in FIG. 5, and stores it in the arbitrary program area 52 in the RAM 5 as described above.

However, in this case, among the control subroutine programs originally stored in the area 42 of the ROM 4 for controlling the copying machine, there is a program corresponding to the Φ step in the flow chart.
Interval tie-routine] (a routine that measures the time interval that is set to take the timing of each part of the copying machine), and the "display processing routine" (which corresponds to step ■)
2 way - 10 way conversion used for displaying the number of copies, 1
Routines for converting 0-7 segment data and sending data to the display are included.

Also, among the group of diagnostic program routines prestored in the area 44 of the ROM 4, there is a ``routine for placing the lens in the 100 dominant position'' corresponding to step 2 in the flowchart in 1i1.

Therefore, among the programs corresponding to steps ■~■ included in the broachyard in Figure 5, service engineers must create only those corresponding to steps o, o, o, c+, s, and O by themselves. , ■O■ steps, it is only necessary to insert an instruction to quote the above-mentioned programs.

Note that among the group of diagnostic routine programs stored in advance in the area 44 of the ROM 4, there is a routine to "set the lens to the 50 position", but in this example, the time counter must be activated during the depth of the routine. It cannot be used because it does not.

In general, the display processing routines included in Step 1 in the flowchart in Figure 5 include binary to 1O base conversion, decimal to 7 segment data conversion, data transmission to one display, etc. This involves complicated processing.

In addition, the routine to "set the lens to the 1001 position" in step (■) involves complex processing such as driving the lens motor tlO (in one direction, confirming that the lens has reached the 100% position, and stopping the lens motor). It is something that requires action.

Therefore, making these routines quotable means that
This makes it extremely easy for service engineers to create programs, and is extremely useful in reducing the time spent on fault diagnosis and streamlining work.

The flowchart in FIG. 6 shows how the monitor program stored in the area 43 of the ROM 4 is related to the input to the computer and the depth of the program created as described above.

In the flowchart of FIG. 6, in step (2), write the code of the desired monitor program.

Use keys 15, 16, and 17 on the console 2 to select the monitor program and enter the monitor mode.

Next, in step ■, input the fault supply/disconnection program created by the service engineer as described above.In this case, it is normal for the input program to be displayed, checked, modified, etc. The same is true for computer use.

In step e, the depth of the engineer program is started by operating the key 19 of the console 2. At this time, as described above, part or all of the control main routine program, control subroutine program, diagnostic subroutine program, etc. is cited as necessary.

When step e is completed and the display processing of the obtained results (timekeeping data in this example) is completed, the process proceeds to step (2) and waits for the next trial or termination instruction. (3) When it is determined that the next trial is necessary in step (3), the program returns to step e and starts executing the same program.

As is clear from the above description, according to the present invention, a service engineer can create the minimum program necessary for failure diagnosis and combine it with each pre-stored excavation program to increase the depth of the program.

Moreover, since all programs, commands, and data can be accessed from the console attached to the copying machine, troubleshooting is extremely efficient, and accurate diagnosis and maintenance can be carried out in a short period of time. become.

[Brief explanation of drawings]

Figure 1 is a diagram showing the general configuration of a copying machine controlled by a computer, Figure 2 is a plan view showing an example of the key arrangement of a Konol, and Figure #13 is a conceptual diagram showing an example of ROM area allocation. , FIG. 4 is a conceptual diagram showing an example of RAM area allocation, and FIG. 115 and FIG. 6 are flowcharts for explaining one embodiment of the present invention. 1... Copy machine/main unit, 2... Console,
3-CPU, 4...ROM, 5...RA
M, 6...IOC. Yoruto dialect wetter Michi Hiraki 1 non-human

Claims (2)

[Claims] (1) Failure of a copying machine that is controlled by a computer and has a normal copying mode and a failure diagnosis mode, and the computer's memory stores a control main routine, a control subroutine, a diagnostic routine evaluation, etc. In the diagnosis method, in failure diagnosis mode, operate the console of the copier. A copying machine, which operates as a display device, and specifies a memory address, writes a fault diagnosis program to a specified address, and instructs execution of the fault diagnosis program by operating keys on the console. Fault diagnosis method. (2) The failure diagnosis program includes a jump instruction to at least a part of a control subroutine, a group of diagnostic routines, etc. stored in advance in the program. Copy machine failure diagnosis method.