JPS62115433A - Copying device - Google Patents

Abstract

PURPOSE:To obtain a copying device capable of copying with a desired accurate magnification by providing a copy editer with a function which calculates the copy magnification in accordance with a ratio of distances of designated positions to set the magnification of a copying machine when optional positions are inputted to a coordinate input plate of the copy editer. CONSTITUTION:In case of position designation, x1-x4 are inputted in order based on a figure abcd on an ordinal 21 to be edited. x1 and x2 are positions of the point (a) or (d) and the point (b) or (c) of the original figure to be edited, and x3 and x4 are positions of a point A or D and a point B or.C when a figure having a desired size after editing is denoted as ABCD. The input of 4 points is detected by a coordinate detecting circuit 8, and X-axis and Y-axis address data are sent to a CPU 9, and the result of magnification operation is transferred to a CPU 11 in the next stage as magnificartion data. The CPU 11 in a variable copy magnification copying machine 10 performs the control of each part required for copying the original with the designated magnification.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a copying apparatus in which copying magnification can be variably set.

Conventional technology In recent years, copying machines have been able to enlarge and reduce paper sizes by standard size conversion, such as converting A-column size paper to B-column size paper (the reverse is also possible) and converting A3-size paper to A4-size paper. However, recently, in addition to this function, variable magnification copying machines, generally known as copying machines with a zoom function, have been introduced, which can set any magnification in steps of a few percent regardless of the copy paper. The so-called "synthesis" is rapidly becoming popular in the market.

An example of the above-mentioned variable magnification copying machine will be described below with reference to the drawings.

FIG. 3 is a perspective view of a conventional variable magnification copying machine. In FIG. 3, 1o is the variable magnification copying machine main body, 32 is a magnification up key for setting the magnification when enlarging, 33 is a magnification down key for setting the magnification when reducing, and 34 is a magnification display unit that digitally displays the magnification value. , 36 is a paper feed cassette, and 36 is a paper discharge tray from which the copied paper is discharged.

A method of setting the copy magnification of the variable copy magnification copying machine configured as described above will be explained.

First, the user selects a figure (picture, picture,
Check the size of text (letters), etc. Next, the size of the desired figure (picture, text), etc. is assumed, and the copy magnification value is judged and determined by comparing it with the size of the figure, etc. on the original document. Thereafter, by continuing to press the magnification up key 32 for enlargement or the magnification down key 33 for reduction without looking at the magnification display section 34, the magnification display section 34 increases or decreases from 100% to the determined magnification value. The magnification was set by releasing the key when it was displayed.

Problems to be Solved by the Invention However, with the above magnification setting method, the determination of the magnification value must be determined by human vision, which takes time and makes it difficult to determine an accurate magnification value. Met. Furthermore, since the magnification display section of a copying machine changes from 100% to every few percent, setting the magnification around the maximum magnification or maximum reduction ratio takes a long time and is not efficient.

In view of the above-mentioned problems, the present invention provides a copying machine that can easily and efficiently set the magnification of a variable-magnification copying machine without requiring the user to determine the copying magnification value, and can make copies at the desired accurate magnification. This is what we provide.

Means for Solving the Problems In order to solve the above-mentioned problems, the copying apparatus of the present invention includes a variable copying magnification copying machine and a copying/editing machine that can select a desired image processing area and image processing mode. This function is used to set the copying machine's magnification by inputting an arbitrary position into the coordinate input board of the copy editing machine, calculating the copying magnification according to the distance ratio of the specified position. This is installed on the editing machine.

Operation With the above-described configuration, the present invention allows an arbitrary position, more specifically, the size of a figure (picture, text), etc. on a copy document, and the desired size of a figure (picture, text), etc. to be input to the copy editing machine. By doing so, the copying and editing machine automatically calculates the copying magnification, so there is no need for the user to judge the magnification value himself, and it is possible to easily and accurately set the magnification.

EMBODIMENTS A copying apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a main block diagram of a copying apparatus in an embodiment of the present invention.

In FIG. 1, 1 is the main body of the copy/editing machine, 2 is a seat ring input plate in which conductors are embedded at equal intervals in both the X-axis and Y-axis directions, and trimming keys 3. Movement key 4° Zoom key 5. It consists of an area where an image processing mode can be selected, such as , and an editing position input section 6 where a processing area for a copy image can be specified.

The editing position input section 6 serves as a placement section for the editing manuscript.

Reference numeral 7 denotes an input device for indicating a position on the coordinate input board 2, and all inputs to the editing machine are performed using this device. Reference numeral 8 denotes a coordinate detection circuit which controls the scanning current of each of the aforementioned conductors and detects the positions of the X-axis and Y-axis by the induced voltage of a detection coil built into the input pen.

Reference numeral 9 denotes a CPU (data processing unit) of the copy/editing machine main body 1, which decodes the position data detected by the coordinate detection circuit 8, that is, the X-axis address data and the Y-axis address data, and performs calculations, storage, control, etc.

10 is a main body of the variable copying magnification copying machine; 11 is a CPU (data processing unit) built into the variable copying magnification copying machine 10;
It decodes the data transferred from the CPU (data processing unit) 9 of the copying and editing machine 1 and controls each part of the variable copying magnification copying machine main body 1o to obtain an image with the magnification specified on the copying and editing machine main body 1 side. .

12 is a lens drive circuit, 13 is a mirror drive circuit,
In order to obtain an optical image at a specified magnification, each motor 14a, 14b is controlled by a CPU (data processing unit) 11.
drives the lens 15. Set the position of mirror 16.

Reference numeral 19 denotes a scanning unit driving circuit which drives a motor 14c and controls the scanning speed of the scanning unit 17 in response to a signal from the CPU (data processing unit) 11. The scanning unit 17 scans under the copy document, and at this time, the light source lamp 20 is turned on and a reflected image of the document is projected onto the photoreceptor 18.

Regarding the copying apparatus configured as described above, magnification designation and copying operations will be explained below with reference to FIGS. 1 and 2. FIG. 2 shows an example of the effect of the present invention, and (
-) is a plan view of a portion where an editing manuscript 21 is placed on a coordinate input board 2 for explaining the embodiment. (b) is an enlarged copy of the paper, and (C) is a reduced copy of the paper.

First, the zoom key 5 on the coordinate input board 2 is input to set the copy magnification. Then, the coordinate detection circuit 8 detects the position specified by the next operation and sends the detected position data (x, y address data) to the CPU (data processing section) 9. C
The PU (data processing unit) 9 decodes the two data sent to it as a zoom command, that is, a magnification setting command, and prepares for calculating the magnification value.

The positions are specified by figures a and b on the editing manuscript 21.

Based on c, d, xl, x2. x3. This is done by inputting x4 in the order (see Figure 2a).

xl, x2 are point a or point d, point b or 0 of the edited manuscript figure
The position of the point is x3, x4, if the desired size of the figure after editing is ABCD, point A or point D, point B or 0.
This corresponds to the point position, that is, the length point in the X-axis direction. 4
The input of a point is detected by a coordinate detection circuit 8, and X-axis and Y-axis address data are sent to a CPU (data processing unit) 9. C
The PU (data processing unit) 9 is! 1. ! When 2 is input, the X-axis address data is pxl! 2 distance i.e. 1
1=x2-xl is determined and memorized, and when x3 and x4 are operated manually, the distance between x3 and x4 (rice=x4-x3) is similarly determined and memorized.

Next, when the end key 22 is input, the X-axis of the input point.

Y-axis address data editing end command (end of magnification specification)
, and use the pre-stored magnification calculation formula (magnification R=12/111) to obtain j! 1. Call and substitute the value of n2, and use the result as magnification data (enlarged data when R>1, same-size data when R=1, reduced data when R>1) in the next stage CP.
Transfer to U (data processing unit) 11.

CPU (data processing unit) 1 in the variable copy magnification copying machine 10
1 decodes the data transferred from the copy/editing machine main body 1 and controls each part necessary for copying at a specified magnification, specifically, setting and scanning the movement of the optical system such as the lens 15 and mirror 16a. This is control of the scanning speed of the section 17.

The movement of the optical system is controlled by the lens drive circuit 1 according to the specified magnification H.
2. The mirror drive circuit 13 is controlled, and the motors 14a, 1
4b sets the lens position and mirror position, and determines the size of the image formed on the photoreceptor 18.

The scanning speed of the scanning section 17 is determined by controlling the motor 14C according to the specified magnification H so that the scanning section drive circuit 19 has a certain scanning speed with respect to the circumferential speed of the photoreceptor 18.
Determine the horizontal (horizontal) size of the document.

The movement of the optical system is performed immediately after the CPU (data processing unit) 11 decodes the transferred data, and the scanning speed is controlled by exposure during the copying process, specifically by mirroring the reflected image of the original illuminated by the light source lamp 20. This is a step of projecting onto the photoreceptor 18 through the lenses 16a to 16d and the lens 15 to form an electrostatic latent image. Therefore, after completing the optical movement according to the magnification H,
Copying is started by pressing the copy start key on the variable copying magnification copying machine 10, and through the copying process of charging, exposing, developing, transferring, separating and fixing, a copy is made at the magnification specified by the copying and editing machine 1, i.e. The entire manuscript is multiplied by 8, and the shape ab
A copy can be obtained in which cd is enlarged to the size of the figure ABCD in FIG. 2(b). FIG. 2(C) shows a sheet of reduced copying designated as z 3-4 z 4-e z 1→z 2 after five manual zooms.

As described above, by inputting an arbitrary position on the coordinate input board 2 of the copy/editing machine 1, the copy magnification is calculated according to the distance ratio of the specified position, and the magnification of the variable copy magnification copier 1o is set. By providing this function, the copying magnification can be easily and efficiently set using the copy/editing machine 1, and copies can be made at an accurate magnification.

Note that in this embodiment, the distance n1. in the X-axis direction is n1. Although the magnification R is calculated from u2, it is also possible to calculate the magnification from the distance in the Y-axis direction. xl and x3 by specifying the magnification value
The same position is input in the X-axis direction, but since the magnification is calculated based on the distance ratio between any two points, the same magnification will be obtained even if they do not match.

Further, even if the positions of X and XOY axis directions and the positions of X3 and x4 in the Y axis direction are different, the magnification is calculated based on the distance of 21° to 2° as shown in FIG. 2 (-).

Effects of the Invention As described above, the present invention allows the copying magnification of the variable copying machine to be adjusted according to the distance ratio of the specified position by inputting four arbitrary positions on the coordinate input board of the copying/editing machine. By equipping the copy/editing machine with a function that calculates the copy magnification, it is possible to always set the copy magnification accurately with an extremely simple operation method, and the magnification can be specified in a short time regardless of the size of the desired magnification value. Specifying operations can be performed efficiently and copies can be made at accurate copy magnification.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a copying apparatus according to an embodiment of the present invention, FIG. 2 (=) is a plan view of an editing manuscript placed on a coordinate input board in the same embodiment, and FIG. FIG. 2(c) is a plan view of an enlarged copy of paper according to the same embodiment, FIG. 2(c) is a plan view of a reduced copy of paper of the same embodiment, and FIG. 3 is a perspective view of a conventional variable magnification copying machine. 1...Copy/editing machine body, 2...Coordinate input board, 3.
・Trimming key, 4...-Movement key, 6...-
Zoom key, 6... Edit position input section, 7...-
...Input pen, 8...-Coordinate detection circuit, 9...CPU (data processing unit) of editing machine, 1o... -Copying magnification variable copying machine body, 11...CPU of copying machine (data processing unit), 12...lens drive circuit, 13...
Mirror drive circuit, 14a, 14b, 14cm-
-Motor, 15...-=V 7's, 16a, 16b,
16C, 16d--mirror, 17... scanning section,
18...- Photoreceptor, 19... Scanning unit drive circuit,
20... Light source lamp, 21... Original, 36...
... Paper cassette, 36 ... Paper output tray 0

Claims (2)

[Claims] (1) A copying apparatus characterized in that a copying magnification setting means of the copying machine is provided in a copying and editing machine capable of controlling desired image processing. (2) The copy/editing machine has a coordinate input board and an input device, and the copy magnification setting means includes means for detecting two distances specified on the coordinate input board by the input device, and a means for detecting two distances specified on the coordinate input board by the input device, and 2. A copying apparatus according to claim 1, further comprising means for calculating a ratio of two distances to obtain a copying magnification.