JPS59129870A - Control device of copying machine - Google Patents

Abstract

PURPOSE:To change and set the maximum limited number of sheets which can be copied continuously, to every optional small number of sheets by constituting so that an inputted optional maximum limited sheet number is stored in a control mechanism. CONSTITUTION:A control mechanism 40 is switched to a maximum limited sheet number setting mode by executing an operation which is different from a regular copying machine start operation, and in this state, an optional switch for inputting a maximum limited sheet number setting signal, for instance, a power saving switch 28 is operated, and also, the maximum limited sheet number is changed and set by operating a numeral button of a copying sheet number setting switch group 24, and an optional button for inputting a maximum limited sheet number storage signal, for instance, a copying start signal 21 is pushed, by which the maximum limited sheet number is stored. In this way, the maximum limited number of sheets which can be copied continuously can be changed and set to every optional small number of sheets.

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 changing and controlling the maximum number of copies that can be made in succession.

With copying machines, it is necessary to limit the maximum number of copies that can be made continuously at one time depending on the performance of the copying machine, etc. Conventionally, a switch was installed in the copying machine itself, and when the switch was changed, it was possible to copy continuously. It is possible to change the maximum number of sheets that can be printed.

However, when changing the maximum number of sheets using the switch, it can only be set for multiple sheets such as 5, 10, 15, and 20, and it can be set for each sheet from 1 to 99 sheets. like,
The problem is that detailed settings cannot be made.

As mentioned above, in order to make the most settings, it is sufficient to install a large number of switches, but this increases the cost, requires a large installation space, and furthermore complicates the operation for setting the number of switches. I end up.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to change the maximum number of copies that can be continuously made by using a control mechanism etc. installed in a copying machine, and to change the maximum number of copies that can be made in a small number of copies. It is an object of the present invention to provide a control device for a copying machine that can perform the following functions.

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 9, etc. is located below a platen glass 7 provided in the copying machine body 1. 10 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 It , l Is are provided, and any one
The copy paper is conveyed from two 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 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, a set copy number display section 26, a set maximum limit number display section 27, etc. are provided.

When the power-on switch 30 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.

It should be noted that the operation of and is well known in the art, so a description thereof will be omitted.

As shown in FIG. 3, the control mechanism 40 includes a control section 41 and a ROM 42 that provides drive commands to the control section 41. Various signals are input to the control section 41 from the operation panel 2Q, and when the power is turned on, [)M
The copying operation is performed by controlling the operation according to the program No. 42.

The control mechanism 40 can be continuously copied 2
It has a function to limit the maximum number of copies, and compares and compares the maximum limit set as described later with the set number of copies set by the copy number setting switch group 24, and determines whether the set number of copies is higher than the maximum limit. When there is a large number of sheets, the maximum limit number is displayed on the set maximum limit number display section 27 to alert the operator.

FIG. 4 is an explanatory diagram of a circuit for changing and setting the maximum limit number of sheets, and FIG. 5 is an operation flowchart.The operation for changing and setting the maximum limit number of sheets will be explained based on FIG. 4 and FIG.

First, turn on the power on switch 30 and any switch provided on the operation panel 20, such as the interrupt switch 28, at the same time.
If N, the control mechanism 4Q determines that it is in the self-diagnosis mode, and is switched to a self-diagnosis mode operation different from the normal operation mode.

Then, press a specific button on the operation panel 2o, for example, the power save button 2.
9 is pressed to input the maximum limit number change signal to the control section 41.

In this state, when a numeric button of the copy number setting switch group 24 is pressed, the maximum limit number corresponding to the numeric button is displayed for each copy in the set maximum limit number display section 27.

When the desired maximum limit number is reached, the user presses the copy start button 21 to input a maximum limit number storage signal to the control mechanism 40, and the maximum limit number is stored in the control mechanism 40.

As described above, the control mechanism 40 is switched to the self-diagnosis mode (Tsumashi, maximum limit number setting mode) by performing an operation different from the normal copying machine starting operation, and in this state, any switch to input the maximum limit number setting signal is set. , for example, the power saving switch 28
At the same time, by operating the number buttons of the copy number setting switch group 24 to change and set the maximum limit number of copies, and pressing any button for inputting the maximum limit number storage signal, such as the copy start button 21, the control mechanism The maximum limit number can be stored in 40.

Next, the operation of comparing and matching the maximum limit number of copies with the set number of copies when performing a copying operation in the normal mode will be explained based on the operation flowchart of FIG.

First, only the power-on switch 30 is turned on to start the copying machine in the normal mode, and the number of copies to be successively copied is set using the numerical buttons of the copy number setting switch group 24.

Compare and match whether this set number of copies is greater or less than the maximum limit number. If it is less than 5, the set number is displayed on the set copy number display section 26, and if it is greater than the set maximum limit number display section 27. Displays the maximum number of sheets.

In the present invention, as described above, the maximum number of copies that can be continuously copied can be changed and set in arbitrary small numbers by using a control mechanism installed in the copying machine.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic explanatory diagram of a copying machine, Fig. 2 is a plan view of the operation panel, Fig. 3 is an explanatory diagram of the control mechanism, and Fig. 4 is a maximum FIG. 5 is an explanatory diagram of the circuit for changing and setting the limit number of copies. FIG. 5 is a flowchart of its operation, and FIG. 6 is a flowchart of an operation for comparing and matching the maximum limit number of copies with the set number of copies. 40 is a control mechanism. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 2 2゜Figure 3 0 @Figure 4

Claims (1)

[Claims] In a copying machine having a function of limiting the maximum number of copies that can be made in succession, means for switching a control mechanism 40 that operates based on a predetermined process from a normal mode of the copying machine to a maximum limit number setting mode; and a maximum limit number setting mode. A copying machine characterized by being provided with means for inputting the maximum limit number of sheets into the control mechanism 40 in detail for each arbitrary number of sheets, and means for storing the inputted arbitrary maximum limit number in the control mechanism 40. Control device.