JPS5993466A - Confirming method of parts replacement point of copying machine - Google Patents

Abstract

PURPOSE:To confirm the correct use frequency of corresponding parts all the time by storing and displaying the use frequency of respective parts of a copying machine on every copying operation and resetting them by switch operation after replacement. CONSTITUTION:When a key switch 140 is set at a copy mode position, a user normally operates a panel to take copies and a count pulse from a total counter 3 is inputted to a microcomputer 21 every time one copy is taken, so the use frequencies of respective parts in a nonvolatile memory 22 are counted. A service man operates the panel 10 when inspecting respective parts. Then, the switch 140 is changed over to a maintenance mode position to turn on a pilot lamp 160 and respective key switches 100-113 are turned on successively with a key switch 130 on; and code numbers of parts are displayed on a display device 151 and the frequencies are displayed on a display device 152, replacing necessary parts. At this time, respective parts switches are pressed with a switch 120 on to display the data on the display devices 151 and 152, and resetting operation is performed with a switch 170.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for confirming when to replace parts in a copying inkstone.

[Prior art]

The lifespan of each component in a copying machine, such as a photoreceptor, cleaning blade, and fixing roller, is determined by the number of sheets the copying machine uses, and each component has its own replacement period determined according to the number of sheets used. If the machine is new and you have never had parts replaced before, then
You can tell immediately by looking at the value on the total counter attached to the main body of the copying machine. However, once a part has been replaced, unless the latest part replacement time for each part is memorized by writing it in a serviceman's notebook, it becomes impossible to know the current number of parts used.

However, it is not only tedious for each service technician to write down the replacement timing for each part in a notebook, but also easy to forget.

For this reason, when problems with unclear causes occur with conventional Vi, such as not being able to obtain clear copies, there is waste such as replacing parts that have not reached the end of their service life, and it takes time to find out the cause. However, there were problems that the repair results that the user was satisfied with could not be obtained.

〔the purpose〕

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a method for confirming when to replace parts of a copying machine, by which the current number of sheets used for each part of the copying machine can be easily determined even in the case of sudden repairs.

〔composition〕

FIG. 1 shows a system configuration diagram of a copying machine according to an embodiment of the present invention, in which 1 is an operation section for service personnel, 2i-
The i-controller 3 is a total counter.

Since the operation section 1 for service personnel is required only by the service personnel for repairs and is unnecessary for the user, the operation panel is housed inside the copying machine main body cover separately from the normal operation panel. Note that in this embodiment, a normal copy operation panel is not shown because it is not relevant.

The controller 2 consists of a microcomputer 21 and a non-volatile memory 22, and the number of sheets used for each part of the copying machine is separately stored in the non-volatile memory 22, as will be described later.

The total counter 3 accurately counts and holds the number of copies to be used, and when counting, a count pulse is also input to the micro combinator 21.

Figure 2 shows the operation panel l in the operation section 1 for service personnel.
This shows the arrangement of O's various operation keys and indicators.
On the operation channel 10, as shown in the figure, key switches ioo~113, 120, 130°14, O, segment indicators 151, 152, an indicator light 160, and a reset switch 170 are arranged. Among these, key switches 100 to 113 are switches for instructing various parts such as the photoreceptor, cleaning grade, and inspection roller, as shown in FIG.

The key switch 120 is a memory-in switch that resets the number of used parts for each part previously stored in the non-volatile memory 22 when the part is replaced. The key switch 130 is a memory out switch that retrieves the current number of used parts for each component from the nonvolatile memory 22 and outputs it for display.

Key switch 140 is a mode changeover switch for selecting copy mode or maintenance mode. Segment display 15
1 is for displaying the memory in/out status and the code of each part, and the segment display 152 is for displaying the number of parts used. Further, an indicator light 160 provided on the side thereof is for displaying the maintenance mode state, and a reset switch 170 is for resetting the number of sheets used for each part stored in the nonvolatile memory 22.

With the above configuration, the key switch 140 is normally switched to the copy mode, and the user operates a copy operation panel (not shown) provided at the top of the copying machine main body to perform copying. At this time, the total counter 3 operates every time one sheet of copying is completed, and a count pulse generated with this operation is input to the micro combinator 21. By inputting this count pulse, the p1 microcomputer 21 counts up the number of used parts in the nonvolatile memory 22.

On the other hand, if the service engineer wants to check the lifespan of each part, open the cover of the copying machine body and operate the operation panel IO (5) in Figure 2. That is, first, the key switch 14
0 to switch from copy mode to maintenance mode. As a result, the indicator light 160 lights up, indicating that the mode has been switched to maintenance mode. Next, with the key switch 130 turned on, the key switches 100 to 113 are turned on in appropriate order. Then, the segment display 151 displays memory out and the code number of the part, and the segment display 152 displays the number of parts used.

For example, when the key switch 100 is pressed, as shown in FIG. 3, the segment display 151 displays B indicating the memory out state and BO indicating the component code 0 indicating that the component is a photoreceptor. On the segment display 152, the number of used photoconductors is displayed with the first digit representing the unit of thousands and the second digit representing the unit of thousands. Similarly, when the key switch 101 is pressed, the segment display 151 displays B1, and the segment display 152 displays the current number of cleaning blades used.

Thereby, the service person can know the number of used parts of each part and judge its lifespan by looking at the display contents of the segment (6) N indicators 151 and 152 at this time.

Next, the serviceman learns the life span of the part from the result of this judgment, and when replacing the part with a new one, turns on the key switch corresponding to the part while keeping the key switch 120 turned on. Then, the segment display 151
A indicating the memory-in state and a component code number indicating the component name are displayed on the segment display 152, and the number of parts used before replacing the component is displayed on the segment display 152. The serviceman then presses the reset switch 170 after confirming that the number displayed on the segment display 151 is the code for the replaced part. Then, the number of sheets used that has been stored in the nonvolatile memory 22 until now is cleared to O. Then,
When the number of used sheets becomes 0, the display content of the segment display 152 that displays it is also cleared to 0. For example, if the photoconductor is replaced with a new one, the key switch 120
When the key switch 100 is turned on after turning ON, AO is displayed on the segment display 151 and AO is displayed on the segment display 15.
2 shows the number of sheets used before replacement. Therefore, from the display content AO on the segment display 151, the service person knows that the number of used photoconductors in the nonvolatile memory 22 can be changed by one, and presses the reset switch 170.

Then, the number of used sheets in the nonvolatile memory 22 is cleared to zero.

Along with this, the 7th segment 152 displaying its contents
The number of photoconductors in use is cleared to 0.

Therefore, the service person should read the segment display 151°15.
2, the number of used photoconductors stored in the non-volatile memory 22 has been cleared to O, and the key switch 14 is pressed.
0 to return to its original copy mode.

As a result, if the user performs a copy operation after that,
Each time, the number of used parts is counted up and stored in the nonvolatile memory 22. That is, among the parts of the copying machine, the number of used parts that have not been replaced since the time of manufacture is counted up every copy operation, and the count value matches the count value of the talk counter 3. On the other hand, the number of used parts for replaced parts is counted up for each copy operation starting from the time of replacement, and is stored in the nonvolatile memory 22.

Therefore, if a service engineer wants to know when to replace each part, he can operate the switch on the operation panel 10 as described above, and the number of parts used will be known from the display on the segment displays 151 and 152, and the number of parts will be replaced. You can easily check the time.

In addition, the segment indicators 151 and 152 are the operation armpit 1.
0, it is also possible to use a display provided on a normal copy operation panel. Also,
If necessary, the operation panel 10 can be integrated with a normal copy operation panel.

Further, the method of displaying the part code and the number of sheets used is not limited to the above embodiment, and various methods may be used. For example, only the part code is displayed on the segment display 151, and the indicator light 160 is used to distinguish between the memory-in state and the memory-out state.
0 points, failure status, or (9) may be identified and displayed by color change.

Furthermore, since the number of parts to be replaced is different for each part, another display may be added to display the prescribed number of parts to be replaced for each part.

Further, the reset switch 170 may be used not only to clear the number of sheets used, but also to set a certain number of sheets.

〔effect〕

As described above, according to the present invention, it is possible to easily know the number of sheets used for each part of a copying machine, and it is possible to judge when to replace each part and use it for repair, and to maintain the copying machine in a stable state at all times. be able to manage it.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a copying machine system according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation panel for service personnel, and Fig. 3 is the relationship between each operation switch and each display code in maintenance mode. It is an explanatory diagram. l...Operation unit for service personnel, 2...Controller, 3...Talk counter, lO...Operation panel,
(10) 21...Microcomputer, 22...Nonvolatile memory, 100-113,120,130,140...
- Key switch, 151.152... Segment light indicator, 160... Indicator light, 170... Reset switch. (11) Figure 7 Figure 2 0 Figure 3 Procedural Amendment (Voluntary) 1978/-Mon 2ρ Commissioner of the Japan Patent Office Kazuo Wakasugi 1, Indication of the Case 1982 Patent Application No. 202875 2, Name of the invention Method for confirming when to replace parts of a copying machine 3, Relationship with the case of the person making the amendment Patent applicant address 1-3-6 Nakamagome, Ota-ku, Tokyo Name (6
74) Ricoh Co., Ltd. Representative Takeshi Inuue 4, Agent 105 Address 1-18-11-6 Nishi-Shinbashi, Minato-ku, Tokyo Details of the amendment Figure 3 of the drawings will be corrected as shown in the attached drawing.

Claims (1)

[Claims] In a method for checking when to replace parts of a copying machine based on the number of copies used, the number of copies used for each part, which is counted up every time a copy is made, is stored in a contingency memory; By operating a switch from the operation panel, the memory content is selectively displayed on the display, and by operating a switch, the memory content for a replaced part is reset, so that the corresponding part is always correct. A method for checking when to replace parts of a copying machine, characterized by making it possible to check the number of copies used.