JPS58186755A - Contraction rate displaying device of copying machine - Google Patents

Abstract

PURPOSE:To prevent miscopying due to missetting of a contraction rate, by illustrating the corresponding size relation between a selected paper sheet and a contracted original in accordance with an original size signal, a selected paper size signal, and the contraction rate. CONSTITUTION:An operator inserts an original into an original insertion opening, selects a copy paper sheet, and adjusts a dial 1. At that time, a contraction signal, a paper size signal, and an original signal are operated in a CPU, and a paper size illustration 9a and a contracted original size illustration 9b are displayed on a display part 9 to indicate their corresponding size relation. When this relation is made appropriate by the adjustment of the operator, the contraction control ends, and a copy having an appropriate contraction rate can be obtained by turning on a start switch 4, thus preventing miscopying due to missetting of a contraction rate, and saving the operator the trouble of forming a test copy.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a reduction ratio (including "magnification") specified by an operator.
By displaying a pictorial representation of the corresponding size relationship between the scaled original (including "enlarged original", the same shall apply hereinafter) and the paper selected by the operator, the original is scaled down according to the size of the original (the same applies hereinafter), thereby preventing copy mistakes due to incorrect settings of the reduction ratio. The present invention relates to a reduction ratio display device ff1K for a copying machine.

As a conventional reduction ratio display device for a copying machine, for example, there is the one shown in Fig. 1, which is equipped with a dial l on the console that allows stepless setting of the reduction ratio, and when the operator adjusts this dial l, the adjustment is made. The display section 1a shows the reduction ratio according to
There is a device that displays the number of copies per copy and sets the desired reduction ratio based on the displayed value. 3, a start switch 4 for starting the copying operation, a paper display section 5 for displaying the selected tray and paper size, and a sensor 7 (not shown) installed on the paper feed tray 6 in the copying machine. (The selected tray and paper size are displayed on the paper display section 5 via the signal processing section.)

With the above configuration, when the start switch 4 is operated after adjusting the dial l to set the reduction ratio, a copy image of the set reduction ratio is copied onto a sheet of paper of the size selected by the operator.

However, according to the conventional reduction ratio display device for copying machines, the operator inputs the reduction ratio calculated based on the size of the original and the paper into the signal processing unit using the dial l, and sets the reduction ratio. Miscopying may occur due to erroneous setting of the reduction ratio, and some b may cause the user to have to change the reduction ratio several times and make trial copies before obtaining a copy with an appropriate reduction ratio.

The present invention has been devised in view of the above, and is designed to appropriately set the reduction ratio without causing any copy mistakes, and without the hassle of making trial copies. To provide a reduction ratio display device for a copying machine, which graphically displays the correspondence size relationship between a reduced-scale original and a selected sheet of paper.

The reduction ratio display device for a copying machine according to the present invention will be explained in detail below.

FIG. 2 shows an embodiment of the present invention. The same parts as in FIG. display) is equipped with a document size detection unit 8 (only the lever for adjusting according to the document size is shown), and the console is equipped with a paper 9
A display section 9 is provided for displaying a pictorial representation of the corresponding size relationship between the scale original 9b and the scale original 9b.

FIG. 3 shows a block diagram of an embodiment of the present invention, which includes a reduction ratio signal generator l that outputs a reduction ratio signal according to the reduction ratio set by adjusting the dial l, and the output of the paper feed tray sensor 7. a paper size detection section 7 that outputs a paper size signal of the paper selected by the operator based on the document size, a document size detection section 8 that outputs a document size signal based on the lever position corresponding to the document size, and a reduction ratio signal, A paper size signal and a document size signal are input, and calculations are performed based on a program stored in ROMu (in addition to the program, commands necessary for pictorial display and pictorial display patterns, which will be described later, are stored), and the calculation results are calculated. Based on <0PUio which outputs the control signal and 0PUlO
A control unit 1 inputs a control signal to display, for example, a pictorial representation of the corresponding size relationship of the scaled original according to the reduction ratio set by the paper and the dial l on the display unit 9 of the 0RT (cathode ray tube).
(Note that by providing a RAM 12, data such as the reduction ratio can be stored. For example, after an interrupt operation, data such as the reduction ratio can be displayed again based on the reduction ratio on the display section 9.) (can be displayed as a picture).

In the above configuration, when the operator inserts the original from the original insertion slot, selects the copy paper, and then adjusts the dial l, the reduction ratio signal, paper size signal, and original size signal are processed at 0 PUIO, Based on the calculation result, the corresponding size relationship between the paper size pictorial display 9a and the reduced original size pictorial display 9b is displayed on the display section 9. Opecy.

In the evening, when the correspondence size relationship of the display section 9 is adjusted to an appropriate size by adjusting the dial l, the reduction ratio adjustment is completed and the start switch 4 is turned on, thereby making it possible to obtain a copy with an appropriate reduction ratio.

FIG. 4 shows another embodiment for inputting the document size, in which a one-sheet number setting switch 2 is used in place of the document size detecting section 8. For example, after entering the original size input mode by turning on the "X" button 2a, the original size can be input by pressing buttons 1 to 9 corresponding to the original size.

In one or more embodiments, one display section 9 is not limited to an ORT, and a plasma display or the like which can be further miniaturized may also be used.

In addition to the stepless adjustment of the shrinkage ratio, a commonly used fixed shrinkage ratio can also be used. Furthermore, according to the embodiment shown in FIG. 4, in which a size signal can be input from the one-sheet quantity set switch 2, it is possible to input not only the original size but also the size of the copy area in the original. You can get the copy you want with this in mind.

As explained above, according to the reduction ratio display device for a copying machine according to the present invention, the correspondence size relationship between a reduced original scaled according to the reduction ratio set by the operator and the paper selected by the operator is displayed as a picture. , it is possible to prevent copy errors due to incorrect settings of the reduction ratio, and to eliminate the hassle of making test copies.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a conventional reduction ratio display device for a copying machine. FIG. 2 is a partially cutaway perspective view showing an embodiment of the present invention. FIG. 3 is a block diagram showing one embodiment of the present invention. 'l'
4 +g 1 tool〉Tool full 1' Explanation of code l...Reduction ratio adjustment dial la...Reduction ratio display section 2
... Copy number set switch 3... Copy number display section 4... Start switch 5... Paper display section 6.
...Paper feed tray 7...Paper size sensor 8...
Original size detection section 9...Reduction picture display section Fig. 1

Claims (1)

[Claims] Means for outputting an original size signal expanded to the original size by a copying machine VC that performs scale copying according to a specified reduction ratio; and outputting a paper size signal according to the selected paper size. and means for inputting the document size signal and the paper size signal and outputting a display signal representing a corresponding size relationship between the selected paper and the scaled document based on the reduction ratio. A reduction ratio display device for a copying machine, comprising a display section that graphically displays a correspondence size relationship between a sheet of paper selected based on the display signal and a reduced-scale original.