JPS60151628A - Copy size selecting device - Google Patents

Abstract

PURPOSE:To take a copy of desired magnification easily by arranging plural from size selection buttons at positions corresponding to enlargement and reduction sizes of a form closely in front of platen glass. CONSTITUTION:Original size indications 3 and 4 are provided at proper places of the left-end side and front side of the platen glass provided on the top surface of a copying machine frame 1. Form size selection buttons 5... are arranged near the original size indication 4 at the front side at positions corresponding to enlargement and reduction form sizes. An operator selects a necessary form size firstly, places an original on the platen glass 2 according to imaginary lines 6... as prolongations of the original size indications 3 and 4, and then pushes one of form size selection buttons 5... to command the form size.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention enables an operator to measure the size of a document on a platen glass when performing copying work that involves reduction or enlargement in an electronic copying machine or the like. By checking with one's own eyes and selecting the corresponding paper size, copies can be made with the desired reduction or magnification. The present invention relates to a copy size selection device.

(Prior Art) When performing a copying operation that involves reduction or enlargement using a conventional electrophotographic copying machine, the operator must set the reduction ratio, such as 70% reduction or 122% magnification, before the operation. Select the displayed button and press it, or select A size or B size.
By selecting and pressing both the paper size button displaying size, etc. and the document size button displaying A size, B size, etc., the desired reduction ratio is obtained, and then copying work begins. In the former case, the operator must memorize the reduction ratio in advance, and in the latter case, the reduction ratio is (length of the paper in the paper feed direction) ÷ (length of the document in the paper feed direction). Since the size of the original is set as 100 (%), the operator has to make judgments such as memorizing the size of the original such as A4.85, etc., which causes delays in copying work or the occurrence of copying errors. There were drawbacks such as causing

(Object of the Invention) The present invention has been made in order to eliminate drawbacks such as delay in copying and copying errors that occur when copying work involving reduction in magnification is performed using the above-mentioned conventional electrophotographic copying machines. A copy size selection device that allows the operator who performs the work to check the size of the original on the platen glass with his or her own eyes and to make a copy at the desired reduction ratio by simply specifying the required paper size. The purpose is to provide the following.

(Structure of the Invention) To achieve this, the present invention arranges a plurality of paper size selection buttons near the front of the platen glass of an electronic copying machine, such as A+3, at positions corresponding to the size of the paper produced by scaling. , Use this paper size selection button to place the original on the platen glass when making copies that involve reduction or enlargement.
After placing the document along an imaginary line on the side of the document, which is an extension of the original size, you can immediately obtain the required reduction ratio by simply pressing the button and specifying the paper size.

(Embodiments) The present invention will be described in detail below based on embodiments shown in the drawings.

The figure is a plan view showing an embodiment of the copy size selection device of the present invention.

Original sizes 3 and 4 are provided at appropriate positions on the left end side and front side of a platen glass 2 provided on the top surface of a copying machine main body 1. A plurality of paper size selection buttons 5 are arranged in the vicinity of the document size 4 on the front side among the document sizes 3 and 4, at positions corresponding to the size of the first-heard paper created by scaling down. The paper size selection button 5 is electrically connected to a reduction conversion device and a paper size selection device (not shown) inside the machine, and the reduction ratio of the copying machine is set in the paper feeding direction of the paper. Length ÷ Length from the left edge of platen glass 2 to each position of the original size selection button 5 x
By setting loO (%) in advance, when the paper size is specified using the relevant paper size selection button 5..., the reduction ratio is 70% when the paper size is B5, and the reduction ratio is 70% when the paper size is A4. It is arranged so that it can be automatically determined that the magnification is 81 cm, the magnification is 122% when it is B4, the magnification is 122% when it is A3, etc.

The present invention is constructed as described above. However, now, in order to use this to perform copying work that involves reduction or enlargement, the operator must first select the required paper size, and then
After that, place the original on the platen glass 2, aligning it with the imaginary line 6 on the extension of original sizes 3 and 4, and then press the paper size selection button 5 to specify the paper size. In this way, the desired reduction ratio is automatically determined, and a copy with the desired reduction or enlargement can be obtained by performing normal close-up operations.

(Effect of the invention) The present invention is constructed and used as described above,
When copying work that involves reduction or enlargement, the operator can make copies at the desired reduction ratio by simply checking and selecting the original size with his or her own eyes and specifying the required paper size. This has the effect of helping to further improve copying operations.

It should be noted that there is no reason why the present invention should be limited to the above-mentioned embodiment, and for example, the paper size selection button 5...
If you make a copy without pressing this button, it will automatically be at the same size, and if you press button 5 twice or after a certain period of time, the auto clear mechanism will automatically operate. Needless to say, it is also possible to reset the data by doing so.

[Brief explanation of drawings]

The figure is a plan view showing an embodiment of the copy size selection device of the present invention. In the figure 1... Copying machine main body, 2... Platen glass, 3
．． 4... Original size, 5... Paper size selection button, 6... Imaginary line.

Claims (1)

[Claims] A plurality of paper size selection buttons are placed near the front of the platen glass in an electronic copying machine, etc., at positions corresponding to the size of the copy paper that is made by reducing the magnification. 1. A copy size selection device characterized in that a copy with a desired copy reduction ratio can be obtained by specifying a paper size after placing the paper in a predetermined position.