JPS59201065A - Control device of copying machine - Google Patents

Abstract

PURPOSE:To shorten a restoration time by discriminating a sequence of generation with regard to abnormality of two kinds or more, displaying as generation of an abnormal state with regard to the foremost abnormality, and disregarding other abnormality. CONSTITUTION:In case abnormality is generated in a reciprocating motion of a carriage, whether a fail timer is driven or not is discriminated, and unless it is driven, whether the carriage has passed through a registration sensor 1 or not is discriminated, and if it does not pass through yet, this route is repeated until it passes through. When a carriage lamp passes through the registration sensor 1, a fail timer 2 is started. Accordingly, this route is repeated until it passes through the following sensor or the fail timer 2 becomes time-up, and when it passes through the sensor, the fail timer 2 stops, and this route is repeated again, but when the fail timer 2 becomes time-up, if no abnormality exists otherwise, it is regarded as an abnormal state, and if there is abnormality otherwide, said lamp passes through without stopping as it is, and thereafter, this route is repeated. In this way, only the first abnormality is extracted and displayed, therefore, why a failure has been generated can be inspected.

Description

[Detailed description of the invention] Industrial use 1! j' Does the present invention apply only to the abnormality that occurs first when an abnormality occurs in the copy/iso? This is related to a method of copying that makes it possible to clearly verify what caused an abnormality by detecting and ignoring subsequent abnormalities.

Conventional Technology In conventional copying machines, if an abnormality occurs and then another abnormality occurs, the abnormality is detected not only for the first abnormality but also for each subsequent abnormality independently. Since I had assumed that the problem had occurred, I was unable to confirm that the copying machine error had occurred several times in the first place.
Therefore, there was a drawback that it took a considerable amount of time to repair the copying machine.

A first aspect of the present invention is the invention of a control device for a multi-machine that eliminates such drawbacks.
For abnormalities of class II and above, what happens after the abnormality occurs? Determine and display the earliest abnormality as an abnormal state occurrence,
By ignoring other abnormalities, the copying machine's I! You can always check what caused the problem in the first place, and therefore the time it takes to repair the copier malfunction.
The point is that the copying machine shown in Fig. f is provided.

Composition of the invention Configuration 2 of the present invention will be explained based on FIG. 1.

Detection means A1, A2, etc. for detecting changes in the status of various operations of the AG copying machine; B is the same detection means A;
Detection means B1, B2, ..., B) for detecting an abnormality when an abnormality occurs based on the signal from the
Two or more types of abnormality occurrence signals generated with a time difference from the same detection means B are compared and determined with respect to the time of occurrence, and only the earliest abnormality is regarded as an abnormal state and displayed by the display means. This is an abnormality signal control means that controls the abnormality so that when there is an abnormality after the th, the abnormality is not treated as an abnormal state and is ignored.

The present invention is configured as described above.When an abnormality occurs for the first time in σ], the abnormality is displayed, and abnormalities that continue to occur until both ears (σ) are stopped are ignored. This allows you to clearly verify what caused the abnormal state of the copying machine in the first place.

Embodiment An embodiment of the present invention shown in FIGS. 2 to 7G will be described below.

The location where the abnormality occurs in the machine is, for example, the carriage lamp (the 0-reciprocating interlocking unit),
There are various abnormalities in the machine, such as abnormalities during movement, abnormalities in the rise of the tray elevator, abnormalities in the user, etc., and there are means for detecting each abnormality.

FIG. 2 shows the configuration of a device for detecting various abnormalities, a control section for abnormal signals, and a display.

ii Miss on the trajectory of the carriage lamp Carriage lamp should pass near the home position at the start of scan 492
It is equipped with a registration sensor that recognizes the condition of the carriage lamp from scanning to return.
I try to emit a signal that separates the state and attitude from change and return to scan closer to the home position.

1 is a registration sensor, and 2 is a fail timer that starts and strafes based on the signal from the same sensor.

3 is turned on when the copy paper in the tray has been fed to a certain extent and the tray elevator nvfJ? It is an elevator switch that sends a signal to turn the elevator on and turns it off when it reaches a set point of 15, and 4 is a fail timer that starts when the switch σ] is turned on and stops a little after turning it off.

There are various other abnormality detection devices, and the computer 5 receives and controls these devices. 6 is an interface circuit between the various detection devices and the computer 5σ) OPU 7 and 2, and 8 is a non-volatile memo into which the control operation program is input.
OJVl and 9 is display i? This is a child Korg/driver circuit that drives ij 10.

Carriage rung movement abnormality among various detection devices.
/Anomaly in the rise of elevator 11 (This will be explained in accordance with FIG. 73 to FIG. 7).

In Fig. 3, ■ indicates the reciprocating movement of the carriage lamp, where the horizontal axis represents time and the scanning distance per stitch 1, and the horizontal axis represents the registration sensor 1.
It also indicates the f position. Reciprocation between the same horizontal axis and the BiJ gear ridge lamp! At the intersection of TvJ■ and ■, the registration sensor 1 detects the passing of the carriage y7- (n and generates a signal ■.The same signal ■ in the scan state starts the fail timer ■, and the next (n1) turn state The fail timer stops due to the request at .Now, in Fig. 3, if an abnormality occurs at point The time amplifier point Z is set in the computer 5 with some extra margin. An abnormality is detected at these two points.

Figure 116 shows the tray elevator and switch. 12 is a lever type switch, and is the contact point of the 13ci switch.

When 6 to 7 copy sheets are fed and the upper surface of the tray elevator is lowered, the switch is turned ON and the elevator motor is driven to raise the tray elevator, and the switch is turned OFF again. A method of detecting an abnormality in the upward movement of a tray elevator using the above-mentioned apparatus is shown in FIG.

■ is a switch ON/OFF signal, ■ is an elevator motor start signal, and the mJ signal ■ rises and sends a signal. ■ is a motor stop signal, and a signal is sent after a short period of time has elapsed since the falling edge of the signal ■, and the train elevator is turned to O by the switch.
Leave some time after F F' and raise the tray elevator. ■ is rjtj motor start dispatch -
This figure shows the driving state of the fail timer, in which the fail timer starts at signal (2) and stops for 7 fail timers at the i3U motor stop signal (d-signal (2)). If you are now at the old point U and an abnormality occurs and the motor continues to drive without the motor stop signal ■, the fail timer will also continue to operate and the time will be approximately three times the normal drive time. If the time amplifier point W is set in the computer, an abnormality will be detected at this W point.

The above abnormalities in the reciprocating movement of the carriage, abnormalities in the elevation of the tray elevator, etc. [Sigma] The abnormality detection program is required to judge the time with other abnormal signals. It is shown in FIG.

Figure 6 shows the flow of abnormality occurrence in the reciprocating movement of the carriage. First, it is determined whether or not the fail timer is running, and if it is not, the registration sensor 2 determines whether the carriage has passed or not. Judgment, JI■
If 1 has not passed, the routine C-1 ends and this routine is repeated until the carriage lamp passes the registration sensor. When the carriage lamp passes the registration sensor, the 7-air timer starts. Therefore, the judgment while the fail timer is running is c: t Y E S, and this route is repeated until the next sensor passes or the fail timer times up, and when the sensor passes, 7 fail timer! Gosttufu and said route? If the fail timer times up again during this period, it is determined whether another abnormality has already occurred.
1. If there is no other abnormality, it will be set to an abnormal state, and if there is any other abnormality, it will be passed through without being set to an abnormal state, and from now on, this routine will be repeated. Therefore, an abnormal state can be established only when an abnormality in the reciprocating movement of the carriage lamp occurs for the first time.

In addition, in the same way, regarding the abnormality in the rise of the tray elevator, in FIG. Start the motor. YES to the 1 tongue while the fail timer is running! 3 and 7j, J elevator motor stop 1: signal.

Under the occurrence of 7 moss 7 eir timer 〇〕 im asozo (Haisu Jt or watch. J, l-to-) motort %
' , +1-ζ No. 77 intervenes, the fail timer stops the motor to the Chiyopi elevator, d:, ``4' C, during this time, the fail timer / lba time - is turned off, and here at t C2- other abnormalities occur Determine whether or not the car is occurring at η, and if no other abnormality occurs, consider it to be abnormal.
If another abnormality has occurred, it will not be set to an abnormal state. - Pass-through -1-ru1, J: Fu〇Ray An abnormal state can be set only when an elevator ascending abnormality occurs first.

In the detection of other abnormalities in various operations, the occurrence of the abnormality is determined in the same manner as in the above two examples, so that only the location where the abnormality first occurs can be extracted.

The abnormality extracted as described above is displayed on the display, and the abnormality that occurred in the retrieval machine can be clearly verified.

Effects of the invention: As described above, the present invention has the most advantageous effect in a copying machine.
Since only abnormalities are extracted and displayed, abnormalities that continue to occur are ignored, so it is possible to verify whether the problem is caused by a problem with the copying machine or by what.
The reduction in repair time is shown in Figure 2'L.

[Brief explanation of drawings]

Fig. 1C is a copy of the present invention, and Fig. 2 is a diagram of the control device according to the present invention. Fig. 3 is a diagram of the control device according to the present invention. Time charts of various signals, Figure 4 and 6 are schematic diagrams of switching due to the vertical movement of the tray elevator, Figure 5 is the vertical movement of the tray elevator σ] Time charts of various 1μ7,
FIG. 6 shows an abnormal condition extraction subroutine in the reciprocating movement of the carriage lamp, 7th IJ i1 Traier, Rubeta CI] upper tough abnormality extraction "no fault". 1... Registration lane sensor, 2... Fail Timer, 3...Elevator switch, 1...
Fail timer, 5...computer, 6...interface circuit, 7-cpu, 8...■Dog OM
, 0. Decoder/driver circuit, 10.. Display device, 11.. Tray elevator, 12.. Lever type switch, 1..... Swivel contact. Representative sinner Bentoji Ehara Mogai 1 name Rhyme City Gaku Figure 6 District 7

Claims (1)

[Claims] Various state change detection means for detecting changes in the state of various operations in the copying machine, and various abnormality detection means for detecting an abnormality when an abnormality occurs based on a state change signal from the same state change detection means. - Among two or more types of abnormal signals that occur with a time difference from the same various abnormality detection means, only the earliest abnormal signal is detected, and the other abnormal signals -8''
1. A control device for a copying machine, comprising: an abnormality signal control means for controlling the abnormality to be ignored; and a display means for displaying a number at the first abnormality.