JPS59121352A - Control device for copying machine - Google Patents

Abstract

PURPOSE:To improve convenience by collating a set copying magnification and the set size of copying paper, judging whether the same are adequate or inadequate, displaying the inadequateness when both are inadequate and performing copying operation for just one sheet. CONSTITUTION:A judgement and selection circuit which collates a set copying magnification and a set size of copying paper, operates an oridinary controlling process when both are adequate and operates a control process for displaying inadequateness in the case of inadequateness and taking one copy is provided in a control part 41. When an operator turns on a button 21 for starting copying, the part 41 applies an operation command for one cycle to each apparatus and, in the case of inadequateness, said control part operates each apparatus for one cycle alone to take one copy and stop the copying machine thereafter. Just one sheet is thus copied in the inadequate state according to need and therefore the above-mentioned control device is convenient.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a control device for a copying machine, more specifically, a copying machine capable of changing copying magnification, which controls the operation of the copying machine when the set copying magnification and copy paper size do not match. This relates to a device for

In a copier that allows you to change the copy magnification and set copy paper of different sizes, if the set copy magnification and the loaded copy paper size do not match, a message will appear on the copier's operation panel. is displayed, and the copying operation is not performed even if the copy start button is pressed.

For example, if the copy magnification is set to 70 inches and fc@,
Since an A3 size original is reduced to a total of 85 sizes of 74 size and 84 size originals, if you set 84 size copy paper in the copier and use fc, you will only be able to copy on a portion of the ;bee paper. Otherwise, copy paper would be wasted, so the above-mentioned display is displayed and the copying operation is prohibited.

Furthermore, when the magnification is set, if the size of the copy paper is smaller than the size of the magnification, the entire document cannot be copied onto the copy paper, so the display and copying operations are prohibited as described above.

However, this method is inconvenient because copies cannot be made unless there is copy paper of a size that matches the copying magnification. In other words, even if copy paper is wasted, it is inconvenient because even if you want to copy at the reduced magnification, or if you want to copy a part of the original onto the copy paper at the enlarged magnification, you will not be able to copy.

The present invention has been developed in view of the above circumstances. The purpose is to provide a control device for a copying machine that displays a non-conformity indication when the set copying magnification does not match the size of the set copy paper and allows only one copy to be made. It is to be.

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

1Q is a schematic explanatory diagram of a copying machine, in which a photoreceptor 2 is installed in the main body 1 of the copying machine, and a belt 3 is placed around the photoreceptor 2.
A developing machine 4, a transfer a5, a cleaning machine 6, etc. are arranged in sequence, and an exposure optical system IQ consisting of an exposure rung 6, an imaging lens 9, etc. is located below a platen glass 7 provided in the copying machine main body l. 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 body i, there is a first. Second. Third paper tray 11
．． ,I+, ,11. are provided, and the copy paper is conveyed from any one of the paper trays 11 toward the transfer device 5. +2 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. Third paper tray selection switch 22I.

22,. 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.

As shown in FIG. 3, the control mechanism 4o includes a control section 4I and an I'110M42 for giving drive commands to the control section 41, and various signals from the operation panel 2-0 are input to the control section 41. At the same time, a signal is input from the power-on switch 30, and based on the input signal, the photoreceptor 2 and the charger 3 are activated.
, developing machine 4, transfer machine 5, cleaning machine 6, exposure optical system 10, etc. 1
, the operation is controlled according to the program in the ROM 42.

On the other hand, in control s4I, as shown in the flowchart of FIG. 4, the size and copy magnification of the set copy paper are detected by signals from the paper tray selection switch 22 and the copy/magnification selection switch 23 of the operation panel 20. , it is determined whether the copying magnification and the copy paper size are compatible or not, and if they are not compatible, the display group 25 displays the non-compatible information to alert the operator.

In order to copy even in this state, the operator presses the copy start button 2.
1 is turned on to start copying, the control section 41 gives one cycle operation command to each device, operates for one cycle in a predetermined process, makes only one copy, and then stops the copying machine.

On the other hand, in the case of conformity, the copy start button 21e is turned ON based on the normal process, copies are made by the number of copies set by the copy number setting switch group 24, and the copying machine is stopped.

The control unit 41 compares the set copy magnification with the set copy paper size, operates the normal control process if they match, and displays a non-match if they match, and prints one sheet. A decision and switching circuit is provided which operates a control process to take a copy of the image.

When the set copying magnification and the set copy paper size do not match, the control device of the copying machine according to the present invention can display the mismatch to alert the operator, and also press the copy start button. By turning on, you can copy only one sheet.

Therefore, it is convenient because only one sheet can be copied without conforming if necessary.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention.
The figure is an explanatory diagram of the control mechanism, and FIG. 4 is an operation flowchart. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 1 Figure 2 0 Figure 3

Claims (1)

[Claims] A means for detecting a copying magnification, a means for detecting the size of the set copy paper, and a means for comparing the copying magnification detected by each of the means with the copy paper size to determine whether the copying magnification is compatible or not, and if it is compatible, 1. A control device for a copying machine, comprising means for normal operation control, operation control for making one copy in case of non-conformity, and means for displaying non-conformity.