JPH0192763A - Information outputting device for copying machine or the like - Google Patents

Abstract

PURPOSE:To confirm which components are troubled in a short time and to shorten the maintenance time of service by simultaneously outputting the number of times of service call and a rate of service calls at every classification. CONSTITUTION:According to the service call frequency written in non-volatile memory, an electric charge erasing means 7a erases electric charges in the image part of a chart sheet 18, and transfers unerased latent images onto a transfer sheet as visible images. Therefore, the number of times of service call and the rate of service calls as separate classified items are outputted to a copying sheet at a time. Thus, which components are troubled can be confirmed in a short time, and the maintenance time of servicemen can be reduced.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to equipment capable of handling and processing images, such as copying machines (analog and digital) and facsimiles, and in particular,
The present invention relates to an information output device regarding its operating status (for example, jam occurrence status).

[Prior art]

In recent years, it has become common to store the operating status of a copying machine in a non-volatile memory within the machine and use it as reference data during maintenance of the machine.

In particular, the number of service calls has been memorized and used in many cases when repairing copies. However, even if the number of service calls is displayed on the display of the operation panel in a special mode by a service person, the more classifications of one service call, the more time it takes to display each classification.

In addition, high-end machines are equipped with data logging systems, and data can be sent to a host computer based on the number of phone calls, etc., and printed out for confirmation. However, this method is complex and very expensive.

〔the purpose〕

The present invention was made based on this background,
The purpose of this is to output the number of service calls or the ratio of service calls for each category to a copy sheet, so that you can quickly identify which parts are malfunctioning in 6fi. 2, and reduce service maintenance time.

[Structure] To achieve this, the present invention prepares a chart sheet that can be used as a machine-specific transfer sheet that describes the service call mode items, and displays a solid image of a bar graph corresponding to the number of service calls for each item on this chart. It is designed to be transferred onto a sheet.

Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 is a diagram showing an image forming section of a copying machine.

The original 1 is placed on the contact glass 2 and placed astI.
The A position is the abutment of the original scale 3.

When SW is pressed, the optical system switches to exposure lamp 4.
lights up and starts moving to the right. During this time, a charge is applied to the photosensitive drum 5 by the corona charger 6, but the latent image before the unnecessary placement position is located downstream of the optical path 6.
Since the eraser 7, which is a charge erasing means, is turned on, the charge in the latent image area is erased, and even if it is developed in the developing section 8 located further downstream, it will not become a visible image.When the developing section starts to be exposed, the optical path to the erase position, the eraser is turned off, the charge is not forcibly erased, and the T is set according to the document.
I! , the load remains on the drum 5 and the latent image is developed into a visible image. 9 is a cleaning unit, IO is a paper feed cassette, 11 is a paper feed roller, 12 is a registration roller, 13 is a transfer 0 separation charger, 14 is a conveyance belt, 15 is a fixing roller, 16 is a paper ejection roller, 17 is a paper ejection tray It is.

Now, in the present invention, the second v! is used as a transfer paper! char) such as J(b). Note that (a) in the same figure shows the erase setup door a. In the normal copy mode, the original image is naturally created on the chart paper. When the copying machine is set to the special mode of the present invention (hereinafter referred to as check mode), the copying machine executes a check mode routine.

The operation of the copying machine in check mode will be explained.

First, a check sheet (chart) 18, which is a document, is set at the original fffJ reference position. When the print switch is turned on, the scanner begins to move as in the normal copy sequence. After the edge (lead edge) of the chart paper in the latent image on the drum passes through the eraser 7, the eraser 7 is not forcibly turned off and two sheets are lined up at equal intervals.
00, each segment 7at-i11 of the erase is selectively turned on or off to erase the unnecessary image portion on the drum as a latent image.

FIG. 3(b) shows an example of the output of the chart sheet obtained in this way.
For example, the number of service calls is counted up for each mode such as exposure system abnormality, optical system abnormality, drive system abnormality, communication system abnormality, fixing system abnormality, curved surface, etc., and a solid bar graph image is displayed according to the number of service calls for each mode. 18a.

That is, by looking at the discharged chart paper, the service call ratio for each mode can be seen at a glance.

The number of service calls for each mode is stored in nonvolatile memory.

Next, a method will be explained in which the eraser 7 is selectively turned on and off depending on the contents of the non-volatile memory to obtain only the necessary image on the chart paper 18 as a visible image.

On the chart 18, the title of the service call mode and halftone dots that should become the bars of the bar graph are printed.

As shown in Figure 4, depending on the service call mode item,
By turning off the eraser 9 and turning it on at the timing of the halftone pattern portion t that should become the bar of the bar graph, the charge on the drum in the unnecessary image portion can be erased, and only the necessary image can be obtained as a visible image.

In FIG. 4, the eraser in the shaded area is turned off.

This erase range changes depending on the count value of each service call mode stored in the nonvolatile memory.

For ease of comparison with FIG. 2, the time axis is shown in a two-dimensional manner as the paper feeding direction.

The non-volatile memory stores the total number of service calls as service call information (the CTA stores the number of service calls for exposure system abnormalities as RAM).
S.V.C.

CTB that remembers the number of service calls for optical system abnormalities
S.V.C.

CTC that remembers the number of service calls for drive system abnormalities
3VC.

CTD that remembers the number of service calls for communication system abnormalities
S.V.C.

CTE that remembers the number of service calls for fusing system abnormalities
S.V.C.

CTF that remembers the number of service calls for image-related abnormalities
S.V.C.

There is.

From this service call information, the ratio of the number of service calls for exposure system abnormalities can be calculated as (CTASVCx 100)/CTSVCT. This value is set to A because CTA S V C. Similarly, CTBSVC is B, CTC3VC is C1 and below,
Let them be D, E, and F.

The values from A to F are from 0 to 100. The erase segments of the chart items mentioned above are segment 0 to segment 50. This segment is turned off to prevent charge from being erased. To represent the value of B in a bar graph, the erase segment from 50 to 50+A should be turned off, and to express the value of B in the same way, the erase segment from 50 to 50+B should be turned off. The same applies to D, E, and F.

If you output the above erase data in order according to the amount of movement of the drum and transfer the image to chart paper,
An image of the service call rate for each service call item is formed in the form of a bar graph in a direction perpendicular to the traveling direction of the chart paper.

FIG. 5 is a program flow diagram of erase control. PLSER is a counter that starts counting after the leading edge of the image passes the eraser 7, and is incremented every time the drum clock pulse is generated as the drum 5 rotates.

This counter determines which portion of the latent image is currently passing through the eraser portion. Then, data is read from the nonvolatile memory according to the number of pulses of this counter, and the ratio is determined to create erase data.

FIG. 6 is an overall control block diagram, in which 20 is an optical controller, 21 is a DC motor, 22 is a sequence controller, 23 is a CPU, 24 is a non-volatile memory,
25 is ROM, 26 is latch rc of eraser 7, 27
28 is a drum clock, 28 is a print switch, and 29 is an abnormality detection sensor.

〔effect〕

As described above, according to the present invention, by outputting the number of service calls or the ratio of service calls for each classification on a copy sheet, it is possible to quickly identify which part is malfunctioning. This makes it possible to reduce maintenance time for service personnel.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the interior of a copying machine to which the present invention is applied;
The figures show the correspondence between f-race segments and check sheets; (a) shows the erase segment, (b) shows the check sheet, and FIG. 3 shows the correspondence between the erase segment and the check after copying. (a) is an erase segment, (b) is a check sheet, FIG. 4 is a diagram showing the correspondence between the erase segment and the drum surface, FIG. 5 is a control flowchart, and FIG. 6 is a control block diagram. . 7...Eraser, 18...Check sheet, 24
...Non-volatile memory. Procedural amendment (voluntary)

Claims (3)

[Claims] (1) A non-volatile memory that stores the number of service calls according to the mode of service calls due to malfunction of the machine, a counting means for counting the number of service calls according to the mode of service calls due to malfunction of the machine, and a service call. It has a chart sheet that can be used as a machine-specific transfer paper that describes call mode items, and a charge erasing means for erasing charges at any position on the photoreceptor according to the data in the nonvolatile memory. An information output device, such as a copying machine, characterized in that an image portion of a chart sheet is erased by a charge eraser according to the number of service calls written, and a latent image that is not erased is transferred to transfer paper as a visible image. (2) An information output device such as a copying machine according to claim (1), characterized in that a charge erasing means is controlled to express the number of service calls in a bar graph. (3) The charge erasing means is controlled in order to express the ratio of the number of service calls in the service call mode divided by the total number of service calls in a bar graph. information output devices such as copying machines.