JPS5934549A - Controller for copying machine - Google Patents

Abstract

PURPOSE:To improve serviceability of a maintenance work by displaying the revised version number of a control program stored in an ROM. CONSTITUTION:A self-test of hardware is taken every time a power source is turned on, and the inspection of the addition of the ROM and a writing/reading check on an RAM65 are carried out; the RAM65 is all cleared to ''0'' after the check. When a diagnostic mode is specified with the ten-key 4 of a console 2, the test result of the self-test is displayed on a display part 5; when the result is abnormal, for example, ''U6'' is displayed on the display part 5 and when normal, a CPU64 reads the version number in the ROM63 and displays, for example, ''2L'' on the display part 5 according to a version number display program to let a maintenance engineer know that the control program stored in the ROM63 is a version 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a copying machine that improves maintenance workability by displaying the revision number of a control program.

As a copying machine control device, for example, there is a copying machine control microcomputer (hereinafter referred to as "microcomputer") provided in an electronic copying machine to control the operation of the electronic copying machine. This microcomputer inputs a ROM that stores a control program for controlling the operation of the electronic copying machine, signals for commanding operations, control signals for each part of the electronic copying machine, etc., and performs calculations based on the control program. A CPU that generates control signals to control operations based on calculation results, a RAM that temporarily stores the calculation results and various data, and a memory that stores data that is desired to be non-volatile, such as the cumulative number of copies. Equipped with Ogawa (non-volatile memory).

According to this copying machine control microcomputer, when an operation is commanded from the console of the electronic copying machine, the CPU processes signals based on a control program corresponding to the operation in the ROM, outputs a control signal corresponding to the operation, and Controls the operation of the copier.

However, in this copying machine control microcomputer, when performing maintenance work on an electronic copying machine, in order to know the revision number of the control program stored in the ROM, it is necessary to use the ROM.
Since the user must take the program home and check its contents using support tools, etc., there is a risk that maintenance work efficiency will be reduced (the same can be said when replacing the ROM due to a revision of the control program).

The present invention has been made in view of the above, and in order to improve the ease of maintenance of equipment having a control section storing a control program, it is possible to display the revision number of the control program stored in the ROM. The present invention provides a control device for a copying machine.

The copying machine control device of the present invention will be explained in detail below.

FIG. 1 shows an embodiment of the present invention, in which a console 2 of a copying machine 1 is provided with a start key 3, a numeric keypad 4, a display section 5 (displaying the number of copies and the number of sets), and the like. The copying machine 1 receives operation signals (signal bus 7) output from the console 2.
(via a signal bus 9.10) and a control signal (via a signal bus 8) which inputs a control signal (via a signal bus 8) representing the status of each part of the copying machine. The microcomputer 6 includes an input interface 61 for inputting the operation signals and control signals into the microcomputer via a signal bus 7.8, and a ROM 63 for storing a control program for processing the input signals and its revision number. and ROM
A CPU 64 that processes input signals based on a program stored in the CPU 63; a RAM 65 that temporarily stores the results processed by the CPU 64 and various data;
NvM (non-volatile memory) 62 that stores non-volatile data such as the cumulative number of copies based on the signal processing result of U 64;
and an output interface 19 that outputs a control signal based on the signal processing result in the CPU 64 to the signal bus 9.10.
has.

In the above configuration, the operation will be explained based on the flowchart of FIG. 2. Each time the power is turned on, a self-hardware check (self-test) is performed. The self-
The test includes an addition check on the ROM 63 and a write/read check on the RAM 6B, and when the self test is completed, the RAM 65 is all cleared to "0". Next, specify the diagnostic mode from the numeric keypad 4 on the console 2 (or press "0" on the numeric keypad 4 when the power is turned on).
may be turned on), the test results of the self-test are displayed on the display section 5. That is, if the test result is bad, the display section 5 displays, for example, "U6", while if the test result is good, the CPU 64 reads out the version number of the ROM 63 based on the version number display program and then displays the version number in the ROM 63. For example, the display unit 5 displays a light “2 LJ (2LEBEL)”.
The maintenance worker is informed that the control program stored in the ROM 63 is the second version. Next, numeric keypad 4
Maintenance work can be performed by keying in the test code corresponding to the test item for maintenance work. In this case, since the number of revisions of the control program is known, it is possible to accurately check the pass/fail of each test item for maintenance work.

As explained above, according to the control device for a copying machine according to the present invention, since the revision number of the control program stored in the ROM is displayed, maintenance of equipment having a control section storing the control program is possible. Workability can be improved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the present invention. Explanation of symbols 1...Copy machine, 2...Console, 3...
・Start key, 4...numeric keypad, 5...display section, 6...microcomputer. Patent Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Shin Matsubara 2 Kiyoshi Muraki
1) Tadashi Difficult Questions Same
Atsushi Ueshima - Same
Hitoshi Suzuki Figure 1 Figure 2

Claims (1)

[Scope of Claims] A device comprising: a control section having a memory storing a program for controlling an operation; and a display section that displays a numerical value according to the operation when the control section issues a display command, comprising: A control device for a copying machine, characterized in that a revision number of the program is stored in the memory, and the revision number is displayed on the display section when a diagnosis command is issued.