JPS61278873A - Control device for copying machine - Google Patents

Abstract

PURPOSE:To make the acqusition of the exact data on a japper jam between maintenance intervals in the stage of trouble diagnosing possible by clearing the data on the paper jam of a non-volatile memory upon ending of a paper jam diagnosis mode when the data on the paper jam of the non-volatile memory is outputted. CONSTITUTION:An operator assigns the trouble diagnosis mode by turning on a diagnosis mode switch 21 and commands the paper jam diagnosis mode by operating ten-key 22 or a clear key 23, then the number of copies (denominator) and the number of jammed sheets at every jammed position (numerator) between the maintenance intervals stored by the non-volatile memory 55 are outputted. A printer 4 prints out the data on the paper jam by a fractional expression in accordance said output and he maintenance operator diagnoses the paper jam. The operator turns on a stop key 24 to command the end of he paper jam diagnosis mode upon ending of the paper jam diagnosis mode. The data on the paper jam in the memory 55 is thereby cleared and the memory 55 stores the fresh data on the paper jam when the next copying operation is started.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device for a copying machine that is capable of accurately grasping paper jam data during a maintenance (failure diagnosis) interval.

[Conventional technology]

As a conventional copying machine control device, for example,
There is one shown in Publication No. 44542. This copying machine control device has a control device such as a microcomputer inside, and in addition to controlling copying operations, it also controls a failure diagnosis mode during maintenance. In the failure diagnosis mode, maintenance workers diagnose copying machine paper jams based on the data stored in the non-volatile memory of the control device, including the number of copies made during maintenance intervals and the number of paper jams at each paper jam location. I try to do it.

[Problem that the invention seeks to solve]

However, with conventional copier control devices, if you forget to clear this data after diagnosing a maintenance failure by checking the data stored in non-volatile memory, such as the number of copies and the number of paper jams, maintenance will be delayed. Since the data for the next interval is added to the data for the previous interval, there is an inconvenience that accurate paper jam data for the interval cannot be obtained during the next maintenance.

Means and operation for solving problem C] The present invention has been made in view of the above, and in order to be able to grasp accurate paper jam data during maintenance intervals, the non-volatile memory is used in the failure diagnosis mode. To provide a control device for a copying machine that clears paper jam data in a nonvolatile memory when a failure diagnosis mode ends when paper jam data is output.

〔Example〕

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 copying machine main body 1 includes:
A panel section 2 that has various switches, keys, etc. and a display section, a platen 3 on which a document is placed, a microprinter 4 (4a indicates a recording paper) that prints out paper jam data, etc., and a copy operation and failure diagnosis mode. A control device 5 is provided to control the following.

The switches and keys on the panel section 2 include, for example, the diagnostic mode switch 21 that commands the failure diagnosis mode, input of the number of copies, and subdivided modes within the failure diagnosis mode, such as the paper jam diagnosis mode. A numeric keypad 22 for inputting codes and the like (instructions may also be made using the clear key 22), a stop key 24 for instructing to end the paper jam diagnosis mode, and the like are provided. The control device 5 includes an input interface 51 that inputs commands etc. from the panel section 2, and a CPU 52 that executes various calculation processes and generates control signals.
and RO that stores the programs necessary for various control operations.
M53, a RAM 54 that temporarily stores input data and arithmetic processing results, a non-volatile memory 55 that stores information such as paper jam positions and the number of paper jams at each paper jam position, and a CP.
It has an output interface 56 for outputting control signals generated by U52.

In the above configuration, the operation will be explained with reference to the flowchart shown in FIG. When the diagnosis mode switch 21 is turned on to command the failure diagnosis mode, and the numeric keypad 22 or the clear key 23 is operated to command the paper jam diagnosis mode, the number of copies (denominator) during the maintenance interval stored in the non-volatile memory 55 is ) and the number of jammed sheets (numerator) for each paper jam position are output. Based on this output, the printer 4 prints out paper jam data based on a fractional formula consisting of the denominator and numerator, and the maintenance worker diagnoses the paper jam based on the paper jam data. When the paper jam diagnosis mode is finished, the stop key 24 is turned on to command the end of the paper jam diagnosis mode. Thereby non-volatile memory 2
When the paper jam data No. 5 is cleared and the next copying operation begins, the nonvolatile memory 25 stores new paper jam data.

〔Effect of the invention〕

As explained above, according to the copying machine control device of the present invention, in the paper jam diagnosis mode of the failure diagnosis mode,
□When paper jam data in non-volatile memory is output,
Since the paper jam data in the non-volatile memory is cleared when the paper jam diagnosis mode is finished, accurate paper jam data during the maintenance interval can be obtained at the time of failure diagnosis.

[Brief explanation of the drawing]

The first is an explanatory diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a flowchart showing control of an embodiment of the present invention. Explanation of symbols 1-・--・-Copier main body 2--・-・-Panel section 3
---Platen 4--Micro printer 5--Control device 21--
-1 Diagnosis mode switch 22-------Numeric keypad
23--Clear key 24--Stop key 51--1--Person interface 52.
−・・CPU 53−−−−−1～・
-ROM54...----RAM 55
--------・-Nonvolatile memory 56・------・Output interface Fig. 1 Fig. 2

Claims (2)

[Claims] (1) A copying machine equipped with a control device that controls a copy operation, a failure diagnosis mode, etc., wherein the control device includes a nonvolatile memory that stores the number of copies and the number of paper jams, and a control device that controls copy operations and a failure diagnosis mode. A control device for a copying machine, comprising a control unit that clears the storage of the data in the nonvolatile memory when the data of the number of copies and the number of jammed sheets is output from the nonvolatile memory in a diagnostic mode. (2) The nonvolatile memory stores the number of jammed sheets for each paper jam position, and the control unit outputs the number of jammed sheets for each paper jam position when the paper jam diagnosis mode is instructed. A control device for a copying machine according to item 1.