JPS59129868A - Control device of copying machine - Google Patents

Abstract

PURPOSE:To adjust easily to an auto-clear time which suits a user's taste by constituting so that an auto-clear time of a copying condition can be set electrically and optionally by utilizing a control mechanism, etc. CONSTITUTION:First of all, when an electric power source turn-on switch 30 and an optional switch provided on an operation panel are turned on simultaneously, a control part 41 decides to have become a self-diagnostic mode, and is switched to a self-diagnostic mode operation. When a specified button of the operation panel 20 is pushed in this state, the control part 41 decides it to change an auto- clear time, and thereafter, when a specified button of the operation panel 20 is pushed, the control part 41 decides it to change the auto-clear time, and therefore, the auto-clear time can be set optionally in detail to a control mechanism by depressing a numeral button of a copy sheet number setting switch group 24 in the operating pannel 20. In this way, it is possible to adjust easily to the auto- clear time which suits a user's taste.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a control device for a copying machine, and more specifically, a control device for controlling copying conditions that can be changed and set by an operator's operation, such as copying magnification settings, copy density settings, and copy number settings. The present invention relates to a control device that sets an auto-clear time in a copying machine that has an auto-clear function that returns to an initial state after a certain period of time has passed after copying is completed.

Conventionally, in a copying machine having an auto clear function, the auto clear time is set to a predetermined value, for example, 50 seconds, and the copy conditions that can be changed and set by the operator's operation are as follows:
When the set time (50 seconds) has elapsed after the copying process is completed, the initial state is automatically restored (auto-cleared).

For this reason, some users may feel that the auto-clearing time is long or short, resulting in user dissatisfaction.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to electrically control the auto-clear time of copying conditions, which is changed and set by an operator's operation, by using a control mechanism installed in a copying machine. Another object of the present invention is to provide a control device for a copying machine that can be set arbitrarily.

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 sequence, and an exposure optical system consisting of an exposure lamp 8, an imaging lens q, etc. is located below a platen glass 7 provided in the main body 1 of the copying machine. A system 10 is provided and is configured to irradiate and expose the original image on the platen glass 7 onto the photoreceptor 2 to form a latent image.

Inside the copying machine main body 1, there is a first. Second. Third paper tray
l+, +12113 are provided to transport the paper 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 20, and the operation panel 20 includes a copy start button 21, a first . Second. Third paper tray selection switch 221°22, . 22. , multiple copy magnification selection switches 23, copy number setting switch group 2
4. A display group 25 and the like are provided.

When the electrolytic erosion switch 30 is turned on and operated in the same manner as before, the controller +R40 controls each device to operate 1h ('), and a copy is obtained by a predetermined copying process.

Note that since this operation is conventionally known to Jfd, a description thereof will be omitted.

Said! 1IIJ control mechanism 40, as shown in FIG.
@Completely prepared, each signal from the operation panel 20 is input to the control unit 41, and the 'rLj power supply switch 30〃1
Based on the input signal, the photoconductor 2, charging device 3, developing device 4, transfer device 5, cleaning device 6, exposure optical system 10, etc. are controlled according to the program of R,0M42. Then, I would like to do the masturbation work.

The control section 41 has an auto-clear function, and after performing the above-mentioned operation control and completing the copying operation, when a preset auto-clear time has elapsed, the control section 41 clears the setting using the copy magnification selection switch 23 on the operation panel 20. The apparatus is configured to automatically clear copying conditions, such as the copying magnification, which are changed and set by an operator's operation, to an initial state (for example, a copying magnification of 1).

Figure 4 is an explanatory diagram of the circuit that changes and sets the auto clear time, and Figure 5 is a flowchart of its operation.
Its operation will be explained with reference to FIG.

First, turn on the power supply switch 30 and any switch provided on the operation panel, for example, the interrupt switch 26, at the same time.
Then, the control unit 41 determines that the self-diagnosis mode has entered, and switches to a self-diagnosis mode operation different from the normal operation control mode.

In this state, if you press a specific button on the operation panel 2o, for example, the clear button CL of the copy number setting switch group 24, the control unit 41 determines to change the auto clear time, and then changes the number of copies setting on the operation panel 2o. By pressing the number buttons in the switch group 24, the auto-clear time can be arbitrarily set in the 1ttlJ@mechanism 40 in minute increments, for example from 3 seconds to 18 seconds, in increments of 1 second.

After setting the auto clear time, press the copy start button 21 and set the auto clear time as the timer value of the auto clear timer 2'. I will memorize the opportunity ゛40.

As described above, the control mechanism 40 is switched to the self-diagnosis mode (in other words, "auto clear time setting mode") by performing an operation different from the normal copying machine startup operation, and in this state, the clear button of the copy number setting switch group 24 is pressed. CL, press the number button to set the auto clear time in the control mechanism 4o, and press the copy start button 2.
By pressing 1, the auto clear time can be stored in the control mechanism 40 as the timer value of the auto clear timer 27, so the auto clear time can be set arbitrarily and precisely according to the user's preference.

Next, the automatic clearing operation of copying conditions will be explained based on the operational flowcharts of FIGS. 4 and 5.

First, only the power supply switch 30 is turned on, the control mechanism 40 is set to the normal mode, and each device is controlled according to a predetermined process to perform a copying operation.

The copying work end detection means 28 detects that the copying work has been completed, starts the auto clear timer 27, and when the timer value (IN at auto clear time) matches the elapsed time, the control mechanism 40 sets the copying conditions. The switching means is operated to automatically clear the copying conditions to the initial state.

As described above, the present invention enables the user to electrically set the auto-clear time of the copying conditions, which is changed and set by the operator's operation, electrically using a control mechanism installed in the copying machine. You can easily adjust the auto clear time to suit your preferences.

[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. An explanatory diagram of the clear time decentralization setting circuit, FIG. 5 is a flowchart of its operation, and FIG. 6 is a flowchart of the auto-clear operation. 40 is a control mechanism. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 1 Figure 2 Figure 3 n Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] In a copying machine having an auto-clear function that resets the copying conditions changed and set by an operator's operation to the initial state after a predetermined period of time has passed after the completion of the copying operation, the copying machine is operated in a normal mode based on a predetermined process, and , means for switching the control mechanism 40 that performs an auto clear operation to an auto clear time setting mode; and means for changing and setting the auto clear time based on a signal input to the control mechanism 40 when in the auto clear time setting mode; A control device for a copying machine, comprising means for restoring the copying conditions to an initial state after the copying operation is completed based on the set auto-clear time.