JPS60247231A - Magnification selector for copying machine - Google Patents

Abstract

PURPOSE:To change magnification in 1% unit by setting and displaying a reduction ratio by raising or discarding the fraction below the decimal point when an up key or down key is pushed from the state of selecting the fixed magnification having the fraction below the decimal point. CONSTITUTION:Copying at a fixed magnification is executed by pushing a fixed magnification key 17. The fixed magnification changes successively to 141.4%, 122.4%, 86.5%, 81.6% and 70.7% at every one push of the key 17 and a pilot lamp 18 of the corresponding magnification lights at every change; at the same time, 141, 122, 86, 81, 70 are displayed on a reduction and magnification display device 22. When the up key 20 or down key 21 of the optional magnification is pushed from the state in which the fixed magnification is selected, the reduction magnfication is increased or decreased by 1% each at every one push of said keys; for example, the device 22 displays the magnification by changing the display from 70 to 71 when the key 20 is pushed once in the state in which 70.7% fixed magnification is selected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a magnification selection device for a copying machine having multi-step reduction and enlargement copying functions.

PRIOR TECHNOLOGY Conventionally, in a copier that can continuously reduce and enlarge copies, if you press the up key with a fixed magnification of 70.7% selected, the reduction magnification display will change from 170 to 7.
1", making it possible to make copies with a reduction ratio of 71 inches.

Problems to be Solved by the Invention However, for example, if the down key is pressed when the fixed magnification is 70.7%, the reduction ratio display changes from "70" to ('69J), but the actual reduction ratio is 70.7%. -69 = 1.7, which means a decrease of 1.7%, and even though the magnification display shows the magnification in units of 1 inch, it is actually 1.7%.
The copy was reduced by 7%.

Copying cannot be performed with variable magnification in 1% increments. Similarly, fixed magnification &+, 6 *, 86.5%, 1224%,
Even if 141.4% is selected, pressing the down key once will reduce the magnification to 1.6% and 1.5%, respectively.
, 1.4%.

There were problems such as a 1.4% reduction and the inability to change the magnification in IS units.

This invention was made for the purpose of improving the above-mentioned problems, and is an amplifier key that allows you to select any magnification.

The present invention aims to provide a method for selecting a magnification of a copying machine that enables variable-size copying in units of 1% or less using a down key.

Equipped with means and effects to solve problems, reduction, enlargement and duplication functions with fixed magnification and arbitrary magnification,
When the up key is pressed from a fixed magnification selection state with a decimal point in a copying machine in which the magnification can be continuously varied using the up and down keys for selecting arbitrary magnification.

When you set the reduction ratio by rounding up the decimal point, that reduction ratio is displayed on the reduction ratio display, and when you press the down key, you can set the reduction ratio by rounding down the decimal part, and at the same time display that reduction ratio on the reduction ratio display. A magnification selection device for a copying machine that displays a display.

Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. In the figure, reference numeral 1 denotes the main body of the copying machine, in which a document table 2 on which a document to be copied (not shown) is placed is provided on the top, and a light source 3 for illuminating the document and a light source 3 for illuminating the document below the document table 2. The reflected light is guided to the photoreceptor 4 and
and an optical system l such as a zoom lens 8 is installed.
The optical system A reduces the copied image onto the photoreceptor 4 in units of 1 inch,
Enlarged projection is possible. Also, around the photoreceptor 4, there is a charger 10, a developer 11. A paper feeding device 12, a transfer device 131, a fixing device 14, and a cleaning device 15 are installed, and a console panel 16 as shown in FIG. 2 is provided at the top of the copying machine main body 1. fixed magnification key 17 and multiple indicator lights 18° that display fixed magnification; equal magnification key +9. Arbitrary magnification up key 20. A down key 21, a reduction ratio display 22, etc. are arranged, and the copying operation is controlled as follows.

If you now press the same-size key I9 to make a same-size copy, the optical system A will be set to the same-size copy position, and l will appear on the reduction ratio display 22.
'-+00J is displayed.

(3) In this state, if you place the original on the original platen 2 and make a copy, you will get a same size copy.0 If you want to make a copy at a fixed magnification, press the fixed magnification key 17. Each time you press this fixed magnification key 17 once, the fixed magnification increases to 141.4%e 122
4%, 86.5%, 81.6%, 70.7%
At the same time, the indicator light 1δ of the corresponding magnification lights up and r141J, r1 is displayed on the reduction ratio display 22.
22J, [6J, 181J.

"70" is displayed. By starting copying at the selected fixed magnification, a copy with the desired reduced magnification can be obtained.

Next, from the state where the fixed magnification is selected, select the arbitrary magnification up key 20 or down key 2 to select the arbitrary magnification.
When 1 is pressed, the magnification is increased or decreased by 1% each time keys 20 and 21 are pressed once, and once the maximum or minimum value is reached, no further shift occurs. Also, if you continue to press the up key 20 or down key 21 for more than α5 seconds, the reduction ratio will be shifted every 015 seconds, so when the desired magnification is displayed on the reduction ratio display 22 (4), press the up key 20 or down key. By releasing 21, the PJr desired magnification can be easily set, and the selected magnification can be adjusted in 1% increments.

Incorporated into a control enclosure consisting of a microcomputer,
Various control data are set.

On the other hand, for example, if you press the amplifier key 20 once with the fixed magnification 70.7ch selected, the fixed magnification will be rounded up to the nearest whole number and displayed as an arbitrary magnification on the magnification display 22, so the magnification will be displayed. The container 22 is from "70" to "71"
" is displayed.

Furthermore, if you press the down key 21 once from the fixed magnification of 70.7%, the decimal part of the fixed magnification will be rounded down, and the display on the reduced magnification display 22 will not change to "70", but the actual magnification will be 0.7%. The system will go down, and various control data will change accordingly. This allows copying with a variable size of 1% or less. That is, when the amplifier key 20 or down button 21 for selecting an arbitrary magnification is pressed, the difference from the already set fixed magnification can be reduced to 1% or less.

Further, when the up key 20 or the down key 21 of an arbitrary magnification is pressed during the selection of a fixed magnification that does not have a decimal point, the reduction magnification is amplified down in the same way as with the selection of an arbitrary magnification.

Effects of the Invention According to the magnification selection method of the present invention, it is possible to change the magnification by 1 inch or less, and the display for displaying the center magnification and rice magnification does not deviate from each other, so the desired magnification can be adjusted. Copies can be easily obtained.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with FIG. 1 being a configuration diagram of a copying machine, and FIG. 2 being a plan view of a console panel. 20 is the up key, 21 is the down key, and 22 is the magnification display. Applicant Fuji Xerox Co., Ltd. Representative Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Soeki (7) Figure 2

Claims (1)

[Claims] Equipped with fixed magnification and arbitrary magnification reduction and enlargement copying functions,
In a copying machine in which the magnification can be changed continuously using the up/down key 20.21 that selects an arbitrary magnification, if the up key 20 is pressed from a fixed magnification selection state that has a decimal point, the decimal point will be rounded up. At the same time as setting the reduction ratio, the reduction ratio is displayed on the reduction ratio display 22, and when the down key 21 is pressed, the decimal point is rounded down and the reduction ratio is displayed on the reduction ratio display 22 at the same time as setting the reduction ratio. A magnification selection device for a copying machine made as follows.