JPH0434458A - Image forming device - Google Patents

Abstract

PURPOSE:To improve operability by displaying the number of copying sheets and a copying magnification in common by the use of a single display means, and switching the display from a magnification to the number of copying sheets automatically or by the use of mode setting means other than magnification- related mode setting means. CONSTITUTION:The image forming device is provided with the display means H, which is used for displaying both the number of copying sheets and a copying magnification in common, the copying operation mode setting means A-F, and a control means 60, which judges the contents of the inputs from the mode setting means A-F and controls the copying operation. In the above-mentioned image forming device, when a signal is inputted to the control means 60 from the magnification setting means D-F out of the mode setting means A-F, the display means H is made to display the magnification for the fixed length of time. Further, the display means H is made to display the number of sheets after the elapse of the fixed length of time, or when a signal is inputted to the control means 60 from the mode setting means A-C other than the magnification setting means D-F. Thus, switching can be facilitated without a particular mode setting means.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an image forming apparatus having a display means that serves both to display the number of copies and to display the copy magnification.

(Prior Art) Some image forming apparatuses such as electronic copying machines display the number of copies and the copy magnification on the same display means, ie, a liquid crystal display section.

In such electronic copying machines, a special key has conventionally been used to switch between displaying the number of copies and displaying the magnification.

(Problem to be Solved by the Invention) However, with the above configuration, each time the magnification display is switched to the number of sheets display, a key must be operated for switching, resulting in a problem of poor operability. Ta.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an image forming apparatus that can easily switch between displaying the number of sheets and displaying the magnification without using a special key for switching. purpose.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a display means for displaying the number of copies and a copy magnification, a mode setting means for copying operation, and an input from the mode setting means. and control means for determining the content and controlling the copying operation, wherein when a signal is manually input from the magnification setting means of the mode setting means to the control means, the magnification is displayed on the display means for a certain period of time. The number of sheets is displayed on the display means after a certain period of time has elapsed or when a signal is input to the control means from a mode setting means other than the magnification setting means.

(Function) According to the above configuration, the display means for displaying the number of copies and the copy magnification displays the number of copies when the number of copies is set by the number of copies setting means of the mode setting means. When the copy magnification is set by the copy magnification setting means, the copy magnification is displayed on the display means for a certain period of time. After this certain period of time has elapsed, the number of copies is displayed again on the display means.

Furthermore, even when the copy magnification is being displayed, if a mode is set by a mode setting means that is not related to the copy magnification, the display changes to the number of copies in the same way.

As described above, when switching the display by the display means from the copy magnification to the number of copies, the switching can be performed without requiring a special mode setting means.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is a functional block diagram for setting and displaying the number of copies and copy magnification according to this embodiment, Fig. 2 is an external perspective view of an electronic copying machine to which this embodiment is applied, and Fig. 3 is a front view similarly showing the operation panel. , FIG. 4 is a sectional view showing the configuration of the image forming process.

In FIG. 2, an image forming process configuration means 50, which will be described later, is built into the main body 1 of the apparatus, and an original table 2 made of transparent glass is provided on the upper surface. Also, manuscript table 2
A document holding cover 3 is provided on the top, one end of which is rotatably supported to hold down the document, and an operation panel 60 is provided at the front edge of the top surface of the main body 1.

A front cover 4 that can be opened and closed is provided on the front of the main body 1, and a paper feed cassette 5 containing copy paper P to be supplied to the image forming process configuration means 50 is removably provided at the bottom of the front. . A paper discharge tray 6 is provided on the left side of the main body 1 in the figure to collect copy sheets P on which copying has been completed.

In FIG. 3, the operation panel 60 includes a copy key A for instructing the start of copying, a numeric keypad B for setting the number of copies, and a keypad for clearing the set value of the number of copies and stopping the copying operation as mode setting means. Clear stop key C
1 Magnification display key D1 for changing from copy number display to copy magnification display Copy magnification adjustment key E1 for increasing or decreasing the copy magnification from the current state Copy magnification key F fixed copy magnification key F for setting a specific copy magnification, exposure amount An exposure amount setting device G and the like for setting the exposure amount are provided. Further, a liquid crystal display section H is provided as a display means for displaying the operating status of each section, the number of copies, copy magnification, etc.

FIG. 4 shows an outline of the image forming process configuration means 50.

Inside the main body 1, there is an exposure lamp 7 and a mirror 8,9,10 that reciprocates in the direction of arrow a along the lower surface of the document table 2.
an optical system consisting of an optical system, a photoreceptor drum 13 that forms an image using the reflected light from the exposure scanning of the optical system through a variable magnification lens block] 1 and a mirror 12, and an electrostatic latent image formed on the surface of the photoreceptor drum 13. A developing device 14 attaches toner to make a visible image, and a delivery roller mechanism 15 or 16 and a guide unit move the copy paper P stored in the cassette 5 in synchronization with the rotation of the photosensitive drum 13 as shown by the arrow C. The toner image is transferred to the transfer charger 2o and the peeling charger 21 through the path 17 or 18, and is transferred via the registration roller pair 22 that brings it into close contact with the surface of the photoreceptor drum 13, and the transfer charger 20, and is peeled off. a conveyor belt 23 that conveys the copy paper P separated from the drum 13 by the charger 21;
A fixing roller pair 24 is provided at the end of the copy paper P to fix the toner image onto the copy paper P, and a paper discharge roller pair 25 is provided adjacent to the fixing roller pair 24.The copy paper P passes through the roller pair 25. It is discharged onto the tray 6.

Further, on the peripheral edge of the photoreceptor drum 13, a charger 26 for removing electricity is provided along the rotational direction to remove electricity from the drum 13 after transfer.
A cleaner 27 removes the toner adhering to the surface of the drum 13 after static electricity has been removed, a static elimination lamp 28 erases the residual image on the drum 13, and the surface of the photosensitive drum 13 is charged to form an electrostatic latent image during exposure. Charger 2 for imaging
9 is placed.

Furthermore, inside the main body 1, there is a cooling fan 30 for preventing temperature rise, and a cassette size detector 31, 32, which is located near the insertion tip of the cassette 5 and is composed of a plurality of microswitch groups for detecting the cassette size. is provided.

Various operation keys A provided on the operation panel 60.

The function of displaying the mode set by B, C, D, E, F, and G on the liquid crystal display section H is shown in a block diagram in FIG. Mode setting signals issued from various operation keys provided on the operation panel 60 are input to the CPU 70, which is a control means. The CPU 70 controls the operation of each part of the copying machine based on human input signals, and at the same time displays a liquid crystal display H that displays the number of copies and magnification via a display driver 80 and a liquid crystal display (not shown) that displays other modes. This is displayed on the display section 90.

Here, when the copy magnification is set while the number of copies is being displayed, the CPU 70 displays the magnification on the liquid crystal display H for a certain period of time, for example, 2 seconds, and returns to displaying the number of copies after 2 seconds. Control.

Also, among the operation keys that are not related to the copy magnification while displaying the copy magnification, copy key A1 numeric keypad B1 clear stop key C
If is pressed, control is similarly performed to return to the display of the number of copies.

Next, the operation of this embodiment will be explained with reference to the flowchart shown in FIG.

After turning on the power in step (a), step (
In b), use the numeric keypad B to set the number of copies. At the same time, the number of copies is displayed on the liquid crystal display H. Next, in step (c), it is determined whether a key related to copy magnification has been pressed. Here, the keys related to the copy magnification include the magnification display key D, the magnification adjustment key E1, and the fixed magnification key F.

If the key related to the copy magnification is not pressed, the number of copies will be displayed on the liquid crystal display section H as is.

If the button is pressed, the copy magnification is displayed on the liquid crystal display section H in step (d). Next, in step (e), it is determined whether or not 2 seconds have elapsed in the copy magnification display, and if 2 seconds have elapsed, the display on the liquid crystal display section H automatically returns to the copy number display.

Next, in step (f), it is determined whether or not at least one of copy key A, numeric keypad B, clear/stop key C has been pressed while displaying the copy magnification, and if it has been pressed, the display on the liquid crystal display H is Return to the number of copies display. If not pressed, return to step (e). When the copy key A is pressed here, after the liquid crystal display H returns to displaying the number of copies, the copying operation is started with the set number of copies and magnification.

According to this embodiment, there is no need for a special key for switching the copy magnification displayed on the liquid crystal display H to the copy number display, and the switching is performed automatically. Therefore 1
By using a single liquid crystal display to display both the number of copies and the copy magnification, the operation panel can be made smaller and less costly, and the magnification display can be automatically switched to the number of copies. It also improves operability.

In the above embodiment, the lighting time of the magnification display is set to 2 seconds, but this time is not limited to 2 seconds.

〔Effect of the invention〕

As explained above, according to the present invention, the number of copies and the copy magnification are both displayed using one display means, and the display is switched from the magnification to the number of copies automatically or by a series of handy operations. Since this can be done using the mode setting means, the operation panel can be made smaller and the operability is improved.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing a control means according to an embodiment of the present invention, FIG. 2 is an external perspective view showing an electronic copying machine to which this embodiment is applied, and FIG. 3 is a front view similarly showing an operation panel. FIG. 4 is a cross-sectional view showing the configuration of the image forming process, and FIG. 5 is a flow chart explaining the operation of this embodiment. A, B, C, D, E, F, G...Mode setting means (operation keys) H...Display means (liquid crystal display) 60...Control means (CPU) A, B, C, D , E, F, G...Mode setting means (operation keys) ■...Display means (liquid crystal display) 60...Control means (CPU)

Claims (1)

[Scope of Claims] A display means for displaying the number of copies and a copy magnification, a mode setting means for copying operation, and a control means for controlling the copying operation by determining input contents from the mode setting means. In the image forming apparatus, when a signal is input from the magnification setting means of the mode setting means to the control means, the magnification is displayed on the display means for a certain period of time, and after a certain period of time has elapsed, or when a signal other than the magnification setting means is input to the control means. An image forming apparatus characterized in that the number of sheets is displayed on the display means when a signal is input from the mode setting means to the control means.