JPS59129866A - Control device of copying machine - Google Patents

Abstract

PURPOSE:To reduce a cost and to simplify a switching operation of a switch by constituting so that a control mechanism is switched in accordance with a paper jam bypass mode stored in a nonvolatile memory, when a machine is started by a regular mode. CONSTITUTION:A control mechanism 40 is set to a regular mode by turning on a power source turn-on switch 30 first, and each apparatus of a copying machine is operated in accordance with a prescribed process. When a paper jam occurs in this state, a paper jam bypass mode switching signal is inputted to the control mechanism 40 by operating an operating member 29 of a power saving switch, etc. on an operation panel 20, a paper jam bypass mode stored in a nonvolatile memory 28 is inputted to the control mechanism 40, and the copying machine is driven continuously by the paper jam bypass mode. In this way, switching to the paper jam bypass mode can be executed without using an exclusive switch, etc., therefore, the cost is reduced, and the switching operation of the switch can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a copying machine, and more particularly, to a device for switching and controlling a copying machine to a paper jam bypass mode in a copying machine having a paper jam bypass function.

In a copying machine, when copy paper becomes jammed in the copy paper conveyance path from the paper tray to the paper output tray (in other words, when a paper jam occurs), a paper jam message is displayed on the operation panel and the copy machine is activated. I'm trying to stop it.

On the other hand, when a service person performs maintenance and inspection work on a copying machine, it is necessary to drive the copying machine even when paper is jammed.

Therefore, conventionally, a copying machine is provided with a switch such as a delay switch so that the copying machine can be driven even when paper is jammed.

In other words, the entire copying machine is switched to the paper jam bypass mode with a single switch.

However, with this configuration, it is necessary to install switches, harnesses, cover ports, etc. inside the copying machine main body, which increases the cost. However, there are disadvantages in that the work of switching and operating the switches becomes troublesome.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a copying machine having a paper jam bypass function with a control function that operates the paper jam bypass mode and the copying machine in a normal mode in a predetermined process. To provide a control device for a copying machine, which utilizes this information and stores it in a non-volatile memory, and is capable of switching to a bypass mode when the copying machine is filled with all sheets of paper by a signal from an operating member such as a switch on an operation panel during normal mode operation. It is.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic explanatory diagram of a copying machine, in which a photoreceptor 2 is installed inside the main body 1 of the copying machine, and around the photoreceptor 2 there is a charger 3,
A developing device 4, a transfer device 5, a cleaning device 6, etc. are arranged in this order, and an exposure optical system 10 consisting of an exposure lamp g1, an imaging lens 9, etc. is located below a platen glass 7 provided in the copying machine body 1. is provided, and is configured to irradiate and expose the original image on the platen glass 7 onto the photoreceptor 2 to form an electrostatic latent image.

Inside the copying machine main body 1, there is a first. Second. Third paper tray I
I, , I 12 , and I Is are provided, and the copy paper is conveyed from any one of the paper trays 11 toward the transfer device 5 . 12 is a fixing device.

The copying machine main body 1 is provided with an operation panel 2o, and the operation panel 2o includes a copy start button 21, a first . Second. a third paper tray selection switch 22;

222, 223, a plurality of copy magnification selection switches 23, a copy number setting switch group 24, a display group 25, etc. are provided.

Then, when the power-on switch 3o is turned on and operated in the same manner as in the conventional case, the control mechanism 40 controls the operation of each device to obtain a copy according to a predetermined copying process.

Note that since this operation is conventionally well known, its explanation will be omitted.

The control mechanism 4o, as shown in FIG. , a signal is input from the power-on switch 30, and based on the input signal, the photoreceptor 2, charger 3, developing device 4, transfer device 5, cleaning device 6, exposure optical system 10, etc.
The copying operation is performed by controlling the operation according to the program of the DM 42.

When copy paper is jammed in the copy paper transport path 14 from each paper tray 11 to the paper discharge tray 13, the control mechanism 40 displays a paper jam indication on the display group 25, and
It has a function to stop the copying machine.

FIG. 4 is an explanatory diagram of a circuit for storing the paper jam bypass mode, and FIG. 5 is an operation flowchart thereof.The operation will be explained based on FIGS. 4 and 5.

First, turn on the power on switch 30 and any switch provided on the operation panel 20, such as the interrupt switch 26, at the same time.
If N, the control mechanism 4o determines that it is in the self-diagnosis mode, and is switched to a self-diagnosis mode operation different from the normal operation.

In this state, the first tray selection switch 22. is turned on to display the first paper tray 118 on the tray display section 2!7, and at the same time input the paper jam bypass mode setting signal to the control mechanism 40. After this, press the copy start button 21 to display the first paper tray 118 on the tray display section 2!7.
When the paper jam bypass mode storage signal is input to 0, the paper jam bypass mode is stored in the nonvolatile memory 2F3.

As described above, the control mechanism 40 is switched to the self-diagnosis mode (pickup, paper jam bypass mode storage mode) by performing an operation different from the normal copying machine startup operation, and in this state, the control mechanism 40
By inputting a paper jam bypass mode setting signal and a paper jam bypass mode storage signal to the switch 0 on the operation panel 2o, the paper jam bypass mode is stored in the nonvolatile memory 2g.

After this, the power supply switch 30 is turned OFF' to bring the control mechanism 40 into its initial state. (Pass, clear) However, the paper jam bypass mode stored in the non-volatile memory 28 is not cleared and continues to be stored.

FIG. 6 is an operation flowchart for switching the copying machine to paper jam bypass mode during normal mode operation, and the operation will be explained based on FIG.

First, turn on the power switch 30 and turn on the control mechanism 4.
0 is the normal mode, and each device of the copying machine operates according to a predetermined process.

If the paper jam state occurs in this state, operate the operation member 29 such as the power saving switch on the operation panel 20 to input the paper jam bus mode switching signal to the control mechanism 40 and store it in the nonvolatile memory 28. The paper jam bypass mode is input to the control mechanism 40, and the copying machine is continuously driven in the paper jam bypass mode.

If the paper jam bypass mode switching signal is not input, a paper jam message is displayed on the display section 25 and the copying machine is stopped. Performs pick-up and paper-stuffing operations.

As described above, the present invention provides a copying machine having a paper jam bypass function. In addition, when the copying machine is operating in the normal mode, the control mechanism 40 can be switched to the paper jam bypass mode by operating the switching means.

Therefore, the copying machine can be switched to the paper jam bypass mode without using a switch or the like, which is advantageous in terms of cost. , the work becomes simple and easy.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a schematic explanatory diagram of a copying machine, FIG. 2 is a plan view of an operation panel, FIG. 3 is an explanatory diagram of a control mechanism, and FIG. 4 is a diagram of a paper copy machine. An explanatory diagram of a circuit for storing the jamming bypass mode, FIG. 5 is an operation flowchart thereof, and FIG. 6 is a flowchart of the paper jamming bypass mode switching operation. 2g is a nonvolatile memory, and 40 is a control mechanism. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto @1 Figure

Claims (1)

[Claims] In a copying machine having a paper jam bypass function, means for switching a control mechanism 40 that operates copying a in a normal mode based on a predetermined process to a paper jam bypass mode storage mode, and when in the paper jam bypass mode storage mode;
A non-volatile memory 28 stores the paper jam bypass mode based on a signal input to the control mechanism 40, and a non-volatile memory 28 stores the paper jam bypass mode when the copier is started in the normal mode.
A control device for a copying machine, comprising means for switching the control mechanism 40 to the paper jam bypass mode according to the paper jam bypass mode.