JPS62161163A - Copy magnification setting device - Google Patents

Abstract

PURPOSE:To enable an input magnification value to be inputted even if the value exceeds a range and to facilitate input operation for copy magnification by setting the copy magnification to magnification within the range automatically if input copy magnification data exceeds a specific magnification value. CONSTITUTION:This setting device is equipped with the store control means which decides whether or not the copy data is within an effective magnification range displayed on a numeric display means when put in operation and converts the data into numeric data within the effective magnification range and stores it in a storage means when the data is not within the range, and a magnification control means which uses the numeric data stored in the storage means as copy magnification data to set an operation mode of a copying machine. It is decided in the store operation means whether or not the copy magnification data inputted by an input means such as a ten-key exceeds the range stored in the effective magnification storage means. When so, a magnification value within the range which is stored in the effective magnification storage means is read out and set in the copying machine, so that a copy is taken with the copy magnification.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a copying magnification unit [ξ] in a copying machine.

Conventional Technology Copying machines with variable copying magnification that enlarge or reduce originals have conventionally been able to set the copying magnification only in predetermined stepwise magnifications, and therefore cannot copy at magnifications between each step. That was an inconvenience. In addition, once the predetermined magnification is set in this way, the actual copy magnification is Ia.
, there was a slight deviation from the accurate value due to errors, etc., and the user was unable to make any adjustments to it.

In addition, some copying machines have been proposed that enable stepless magnification using a sliding control lever, etc., but it is difficult to know the actual copying magnification, and even if you try to make M copies, the same magnification will be returned. There were some problems, such as it being difficult to reproduce.

Purpose This invention provides a copying magnification that allows a copying machine to be forcibly set to a copying magnification within the effective range when a copying magnification value input using a numeric keypad or the like is outside the effective copying range preset in the copying machine. The purpose is to provide a configuration device.

A further object of the present invention is to provide a reciprocal magnification setting device that can set the copy magnification steplessly.

A further object of the present invention is to provide a copy magnification setting device that can adjust the copy magnification once set to a desired value.

Means for Solving the Problems In order to achieve the above-mentioned objects, the present invention comprises: a manually operable numerical input means; a storage means for storing numerical data; and a means for displaying numerical values input by the numerical input means. a numerical display means having a numerical display section with a predetermined number of digits; a store operation means for storing numerical data in the storage means by an operation; an effective magnification storage means for storing numerical data in an effective magnification range; and the store operation means When operated, it is determined whether or not it is within the effective magnification range displayed on the numerical display means, and if it is outside the range, it is converted into numerical data within the effective magnification range and stored in the storage means. The present invention is characterized by comprising a store control means for controlling the storage, and a magnification control means for setting the operation mode of the copying machine by using the numerical data stored in the tα means as copy magnification data.

Operation With the above-described configuration, it is determined in the store operation means whether or not copy magnification data inputted by an input means such as a numeric keypad exceeds the range stored in the effective magnification storage means;
If it exceeds the range, the magnification value within the range stored in the effective magnification storage means is read out and set in the copying machine, and copying is executed at that copying magnification.

promotion An embodiment of the present invention will be described below with reference to the drawings.

Copying mechanism FIG. 1 shows an example of an electronic duplex machine equipped with a magnification setting device according to the present invention. A photoreceptor drum 1 that can be rotated in a counterclockwise direction is disposed approximately in the center of the copying machine body, and a main eraser assembly 2. Sub charger 3. Zabui laser lamp 4, main charger 5.
Developing device6. Transfer charger 7, copy paper separation charger 8. A blade type cleaning device 9 is provided. Since the photoreceptor tram 1 has a photoreceptor layer on its surface, this photoreceptor is sensitized and charged by passing through the eraser lamp 2.4 and the charging device 3.5, and receives image exposure from the optical system IO. .

The optical system 1O is installed below the original glass 1G so that the original image can be scanned, and includes a light source (not shown), a movable mirror +
1.12.13, a lens lens 1, and a mirror I5. The surface light source and the movable mirror 11 are measured at the circumferential velocity (V) of the photosensitive drum I (at the same magnification).

(constant regardless of magnification) versus (v/n) (where n:
The movable mirror moves to the left at a speed of 12°1 (copy magnification).
3 moves to the left at a speed of (v/2n), DC
Driven by motor M3. When changing the copying magnification, the lens 14 moves on the optical axis and the mirror 15 moves and swings, but such a magnification changing device will be described in detail later.

On the other hand, there are paper feed rollers 21 on the left side of the copying machine body.
(Cl3), 23 (Cl3) paper feed section 20.22
The copy paper conveyance path is composed of a pair of rollers 24 and 25, a pair of timing rollers 26 (CLI), a conveyor belt 27, a fixing device 28, and a pair of discharge rollers 29.

Next, a mechanism for moving lenses, mirrors, etc. for changing magnification will be explained with reference to FIGS. 3 and 4. This magnification changing mechanism allows selection of virtually stepless magnification from enlargement to reduction, so specifically, enlargement (x I , = 11
4), the same magnification (×1), and the reduced magnification (Xo, 647) can be selected as appropriate.

The magnification changing mechanism generally includes a lens moving mechanism 35, a mirror moving mechanism 40, a mirror swinging mechanism 55, and a stepping motor M4 that drives these.

The lens moving mechanism 35 has the lens 14 movably mounted on a guide rail 36 installed parallel to the optical axis, and rotates a drive wire 37 wound around a drive pulley 32 fixed to the output shaft 31 of the stepping motor M4. The drive wire 37 is stretched around pulleys 38, 38 which can be freely moved, and the middle part of the drive wire 37 is properly attached to the side of the lens 14. Therefore, by rotating the stepping motor M4 forward and backward at a predetermined rotation speed, the drive wire 37 is rotated forward and backward via the drive pulley 32, and the lens I4 is moved along the guide rail 36 on the optical axis as shown in FIG. It moves left and right and stops at a position according to the magnification.

The mirror moving mechanism 40 includes a guide in which the mirror 15 is fixed on the rear side to a shaft 43 rotatably supported by a moving body 41, and side pieces 42 and 42 of the moving body 41 are installed parallel to the optical axis. A rotatable roller 14, which is slidably attached to the shaft 45 and provided at the end of the shaft 43, is placed on the auxiliary kite rail 46. Further, the circumferential surface of a movable drive cam 53 comes into contact with a pin 50 provided on the multi-moving body 11 via a bracket 49, and the movable body 41 is attached to the cam 53 side by a coil spring 48 whose one end is properly attached to the bin 47. is energized by

A gear 33 fixed to the output shaft 31 of the stepping motor M4 is fixed to one end of a support shaft 51 and meshes with an r-shaped gear 52, and the cam 53 is fixed to the other end of the support shaft 51.

Therefore, the rotation of the stepping motor M4 is controlled by the gear 33.
is transmitted to the cam 53 via the gear 52 and the support shaft 51,
The movable body 41, ie, the mirror I5, moves back and forth on the optical axis according to the shape of the circumferential surface of the cam 53, and corrects the optical path length as the magnification changes. That is, the lens 14 and mirror 15 are driven in conjunction with each other by a stepping motor M4 as the magnification changes, and their positional relationship is as shown in FIG. In addition, in the embodiment of the present invention, the rotation amount of the stepping motor M4 can be continuously adjusted in order to perform stepless magnification, but if this is done stepwise, the mechanism is such that several stages of magnification are selected. be able to.

On the other hand, the mirror swing mechanism 55 brings the peripheral surface of a swing drive cam 57 fixed to a rotatable support shaft 56 provided on the movable body 41 into contact with the back surface of the mirror 15, so that the mirror 15 is moved around the shaft 4.
A coil spring 58 wound around the cam 57 is biased toward the cam 57, while a pinion gear 59 fixed to the support shaft 56 is meshed with a rack 60 attached to the copying machine body.
extends parallel to the guide shaft 45. This mirror swinging mechanism 55 corrects the deviation of the exposure point where the optical axis of the light beam reflected by the mirror 15 hits the photoreceptor drum l by simply moving the mirror I5 as the magnification is changed, and changes the magnification. At this time, the mirror 15 is also swung so that the optical axis is directed to the same exposure point.

That is, when the movable body 41 moves back and forth in accordance with the change in magnification, the pinion gear 59 rolls on the rack 6o and the cam 57
rotates with the supporting shaft 56, and swings about the shaft 43 as a supporting point according to the peripheral surface shape of the mirror 15 or the cam 57, thereby correcting the exposure point.

In this case, the rocking angle of the mirror 15 is positioned such that the optical axis of the light beam reflected by the mirror 15 is directed toward the center of the photoreceptor drum 1 at maximum magnification (at the time of enlargement in this embodiment), and thereby The optical axis is adjusted so that it points to the same exposure point as the exposure point at maximum magnification. this is,
Since the slit-shaped image is enlarged and projected, the distortion of the exposed image becomes most noticeable.By making the optical axis at maximum magnification incident perpendicularly to the photoreceptor drum l, exposure due to the deviation of the angle of incidence can be avoided overall. This makes image distortion less noticeable.

The arrangement of the operation keys on the operation panel of the control device (copied in FIG. 5) is not shown. The operation panel 7o has a pudding key 71 for starting the copying operation, a numerical display bag capable of displaying 11-digit numerical values (ξ72, 1.2, respectively...
・Numeric keypad corresponding to the numerical value 9.0 80 to 891 Specify interrupt copying 0 Interrupt = 1”-90° Clear ・Stop key 91. Paper selection key for specifying the copy paper loaded in multiple stages by size 92. An amplifier and down key 93°9.1 for changing and specifying the copy image density in steps, and a group of keys 95 to 103 related to the copy magnification setting device of the present invention are arranged.

The first group of magnification setting keys 95, 96, 97, and 98 are arranged for the purpose of arbitrarily setting the magnification. When the nine keys for switching the magnification setting mode are operated and the control mode of the copying machine is switched to the first magnification setting mode, a command is input using the numeric keypad to operate any key, and the display is displayed. The numerical value displayed on the AA position 72 is stored as a copy magnification in the memory corresponding to the operated key.

Second magnification setting key 1! $100,101,102゜1
03 has a predetermined copying magnification set in its corresponding memory, and the copying operation is executed based on the preset numerical value without having to set the numerical value as in the case of the first key group. It has been thought about as much as possible. Therefore, the preset copying magnification is selected, for example, at the time of factory shipment, considering that the copying magnification will normally be used frequently the previous time. This will be explained in detail later.

In this way, the first set of keys allows the user to arbitrarily set the required copying magnification, and the second set of keys is used for commonly used copies, such as A4-B5 for domestic specifications. B4→A4. A
3→A4. Alternatively, a magnification corresponding to 3 etc. is preset to A4-, and is given a different functional role. However, since the numerical value preset for the second key group is a general or calculated copying magnification,
Due to mechanical or design errors, the actual copy may differ slightly from its copy magnification. For example, even if you select the same size (×I), the actual size is (xl, 00
4) Or it may be (xo, 996) times. In such a case, the control mode of the copying machine is switched to the second magnification setting mode by operating the second magnification setting mode switching key 104 shown in FIG. By similar operation, it is possible to set arbitrary numerical values in the memories corresponding to the keys 100 to +03 to obtain a desired copy magnification. Specifically, a numerical value of 1.002 or 0.998 may be set for the same size key.

FIG. 6 shows a control circuit used in the magnification setting device of the present invention, in which 20+ is the 10th CPU, 202 is the 2nd CPU,
03 is flAM, 204 is switch matrix 2205
206 is a drive circuit for a DC motor M3 for document scanning, 206 is a drive circuit for a stepping motor M4 for variable magnification, and 207 is a decoder. Note that the output terminals AI to A7 are connected to the main motor M1. Developing motor M3. Timing roller clutch CL1. J2 paper feed clutch CL2. Lower paper feed latch CL3. Djanya 5. Connect to each drive switch transistor (FIG. 7) of the transfer switch 7.

The RAM 203 stores various defaults for one-way operation control, and a storage section Ql corresponding to the selection keys 100 to 103.

B2. B3. As will be described in detail later, for example, when the selection key 100 is turned on, the magnification displayed on the display device 72 is written to or read out from the storage unit Ql, and when the selection key lot is turned on, the magnification displayed on the display device 72 is written to or read out. The magnification can be written to or read from the storage section Q2.

Also, for the selection keys 95 to 98, the storage units Q5 and Q
6, Q7, and Q8 are provided in the same manner as described above, and for example, when the selection key 95 is turned on, the magnification is written in the storage section Q5 or read out from the storage section B5.

For example, this RAM 203 is backed up by Wl.
When the power is cut off, the memory contents are retained.

FIGS. 8 to 15 are flowcharts showing processing procedures for magnification setting and copying operation control executed by the first CPU. Based on this, the present invention f, l (legally regulated) will be described below. Fig. 8 is a flowchart schematically and comprehensively showing the processing procedure in the first CPU.

In steps St and S2, the above-mentioned storage sections Q1 to
Presetting processing of the magnification for Q4 is executed. Details of this process are shown in FIG.

Step S3. In S4, when the copying machine is not in a copying operation, processing is executed to set magnifications A to H in association with each of the selection keys 95 to 98 or 100 to 103. Details of this process are shown in FIGS. 1O to 12.

In step S5, processing is executed to transfer data for controlling the lens position and motor drive speed to the second CPU 202 in accordance with the magnification set in step S4. When transferring this data, the second C1'U 202 processes this by interrupting.

Details of step S5 are shown in FIGS. 13 and 14.

In step S6, other processes such as controlling the temperature of the heater of the copying machine and determining the size of copy paper are collectively shown.

In step S7, processing for controlling the copying operation is executed. Details of this process are shown in FIG. In addition, the first
Figure 6 is a time chart 1- showing the operation.

FIG. 9 shows keys for setting the second magnification ffT 100 to 10.
3 is a flowchart showing details of initial setting processing for presetting a predetermined numerical value in the memories Ql-Q4 corresponding to No. 3; The initial switch in step S1 in FIG. 8 is a switch that is set in a position in the copying machine that cannot normally be operated, so that it can only be released during assembly at the factory or for Zahismano. The process shown in FIG. 9 is executed only when operated.

The numerical values preset in the memories Q1 to Q4 are determined by the on/off states of the switches shown at 105, 106, and 107 in FIG.
Specifically, during machine assembly or factory shipping, the workbench turns on and off switches 105 to 107 according to combinations determined in advance by the destination, etc., and closes the initial switch. A predetermined numerical value is preset in the memory Ql-04. Steps 5501 and 5502 indicate processing for setting multiplier values for the on/off combinations of switches 105 to 107 stored in the first cPU 201 in each memory Ql-Q4. Table 1 shows specific examples of preset values for combinations of
．． Shown below.

Table 1 Note that the numerical value "0" does not indicate that the magnification is set to O, but indicates that the corresponding key is in an empty state. Processing when the memory is "0" will be described later.

When setting numerical values as copy magnifications in the memories Ql-Q8 corresponding to selection keys 95-98 and 100-103, the processes shown in FIGS. 10 to 12 are executed.

In FIG. 1O, in step 5IOI, 5102, when the key 99 or +04 is operated to switch to the copy magnification setting mode, the first. It is determined for which second key group magnification setting is requested. key 99
When is operated, the first copy magnification setting mode is activated.
The flag A is set to "B". When the key IL4 is operated, the flag 3 indicating the second copy magnification setting mode is set to "B".

When the key 99 or 10.1 is operated, in either case, in steps 5I03 and 5105, processing is executed in which the 1000th flag is set to "B" and the display of the 1st rank is set to "0". When the control is switched to the magnification setting mode, the numerical display device 72 displays "bbb o" (b is blank) and enters a standby state to accept input from the 1000th digit.

If the numeric keypad is operated in this state, step 5107
The type of key is determined, and only when the "1" key 80 is selected, the process advances to step 5108 and "B" is displayed at the 1000th place.

Note that here, 1 is used for convenience due to the relationship with the numerical display device 72.
000th place, 100th place.

Numerical values will be explained using expressions such as 10th place and 1st place, but the numerical value as a magnification is treated as a decimal number with 3 digits after the decimal point and 1 significant digit.

If the 1000th flag is “BI”, the input value is 0.
Or in the case of 2 to 9, proceed to step Sl 10 and I
Display “0” at the 000th position. Next, if the input is "0", the process advances to step 5109 as in the case of rlJ, sets the 1000th flag to "0", sets the 100th flag to "B", and waits for input to the 100th digit. In the case of 9, set the 1000th flag to "0" in step S+12, then proceed to step 5115 and change the input value to 10.
The display is shifted to the 0th digit.

The processing described above when the 1000th place flag is "B" is based on the premise that values in the range of 0647 to 1.414 are treated as valid copy magnifications. Therefore, the 1000th place digit is Only “BI” or “0” can be displayed. Also, by doing this, “0” is placed in the 1000th digit.
This simplifies key operations when inputting . Note that even if such processing is executed, there may be a case where the value inputted in the 100th place or lower may end up being a value outside the range of the above-mentioned effective copy magnification. The processing at this time will be explained in the subroutine section of FIGS. 11 and 12.

When a numerical value of the 1000th digit is entered, the 100th place flag becomes "B", and if the numeric keypad is operated in this state, the 100th place flag becomes "B".
A numerical value corresponding to the key operated for the digit digit is input, and in step 5115, the numerical value is displayed, and in step 5116, a process is executed in which the 100th place flag is set to "0" and the 10th place flag is set to "the same". Enter the 10th place below,
Enter the first place using the numeric keypad.

The flowchart of FIG. 11 shows the process of storing the numerical values input and displayed in the process of FIG. 10 in the memory corresponding to the selection key operated next.

In step S20+, it is first determined whether the mode is the first magnification setting mode or the second magnification setting mode. Since step S201 is executed only when either flag A or B is "1", here, for example, only the 1141 determination as to whether flag A is "1" is executed; If the flag A is not "B," then it is the first magnification setting mode, so the process proceeds to step 5218 and subsequent steps to determine the operation of the first selection keys 95 to 98. Since this is the second magnification setting mode, the process advances to step 5202 and subsequent steps in which it is determined whether the second selection key Io-103 has been operated.

In the process shown in FIG. 11, in any magnification setting mode, the displayed numerical value is basically stored in the memory corresponding to the operated selection key. However, as described above, at this stage, a value that is not within the range of permissible copying magnifications may be displayed.

Therefore, in the process shown in FIG. 11, after determining the operation of each key, the subroutine shown in step 5203 is executed to prevent numerical values outside the permissible range from being stored in the memory. The process of step 5203 is shown in FIG.

In FIG. 12, if the display is not "0", it is determined in step 5230 whether the displayed numerical value is smaller than 0647, and if it is smaller, step 5231
and set the display to 0.6/1.7.

Also, in step 5232, the displayed value or
14, it is determined whether it is a dog or not, and if it is large, step 5233 displays 1.41/l.

Therefore, as explained in connection with FIG. 11, when a predetermined selection key is operated in the magnification setting mode, if the displayed value is outside the allowable range, the display is changed to the allowable limit value, and then the display The numerical value being displayed is stored in the memory corresponding to that key. When the process of storing numerical values in the memory is executed, flag A is set to "O" in the case of the first magnification setting mode, and flag B is set to "O" in the case of the second magnification setting mode, and the process proceeds to step 8206.

Steps 8206 to 5208 show processing when the clear stop key 91 (see FIG. 5) is operated. When the clear stop key 91 is pressed, step 520
At 7,5208, "bbbbi" is displayed on the display device 72, and flags A and B are set to "0". That is,
When the clear/stop key 91 is operated, the displayed numerical value is cleared and the magnification setting mode is canceled. Therefore, the number “B” displayed by this is
"B" is the setting value for the number of copies.

13 and 14 show the second selection key group 100~
103 and the first selection key group 95 to 98 are operated.

In FIG. 13, keys 100, 101, 102 and +
03 is operated, light emitting diodes 100a, 101a,
Among l02a and l03a (see Fig. 5), the one corresponding to the operated key lights up, and then, when the contents of each corresponding memory Q1 to Q4 are not "0", the numerical value stored in the memory 2nd CPU2 as magnification data
02 and proceeds to step 8406 in FIG. If the content of the memory corresponding to the operated key is "0", the process similarly advances to step 5412.

In FIG. 14, when any of the selection keys 95 to 98 is operated, in this case, the corresponding light emitting diode is turned on as described above, and an arbitrary magnification is set, so steps 5402, 5408, 5415 and 542
At 0, the numerical values set in the corresponding memories Q5 to Q8 are displayed on the display device 72. This display is set, for example, only when each key is pressed, and when the key is released, the number of copies set in another storage device is called up and displayed on the display device 72. There is. In the case of this first selection key group as well, if the numerical value stored in the memory corresponding to the operated key is not "0", that numerical value is transferred to the 20th PU 202 as magnification data; proceeds to step 5412.

Step 5412. In S4.13, if the content of the memory corresponding to the operated key is "0", the magnification value that was selected until the selection key was operated is selected, indicating the "0" selection state. The flag M is set to "l". When the flag M is set to 1 and the operated key is released, the process proceeds to step 5424, and in step 5425, the flag M is set to "0", and in step 8426, the "previous" key called in step 5412 is set. The light emitting diode corresponding to the memory is turned on, and in step 5427, the numerical value stored in the memory is displayed on the second CPU 202.
will be forwarded to. That is, when the key corresponding to the memory having the numerical value "0" is operated, processing is performed so that the state is the same as if the key had not been operated at all.

The above is an explanation of the setting operation in the magnification setting device of the present invention. As is clear from this explanation, according to this magnification setting device, any copying magnification required by each user can be easily set using the first magnification setting mode, and the magnification can be set at any time as necessary. You can check the set magnification on the display and use the value as control data for the copying machine. In addition, according to the second magnification setting mode, the work is mainly to correct the magnification by reading the error with the numerical copy magnification from the copy actually obtained with a preset predetermined copy magnification. The effect achieved is that this can be done very easily.

With respect to the numerical value set in this way, the movement of the lens 14 is controlled by the control device 206 based on the output of the 20th PU 202 in accordance with the copying magnification.
For example, the stepping motor M4 is controlled to rotate in both forward and reverse directions so as to rotate by l pitch relative to a numerical value of 0.001 or 0.002. Therefore, practically stepless variable magnification can be achieved. In addition, the second CPU 20 controls the moving speed of the optical system to be variable in accordance with the set numerical value.
Based on the output of 2, 1. The control device 205 controls the speed of the direct current DC motor, which is the drive source, and many methods have been conventionally available or provided, and will not be described in detail here.

In FIG. 5, the panel portion 70a adjacent to the first group of selection keys 95 to 98 has a structure such as a whiteboard that can be written on and erased with a predetermined writing instrument, a removable adhesive sticker, or a panel that can be attached and detached by magnetic force. However, it is convenient to use the magnification of the numerical value arbitrarily set by the user, for example, to write characters such as [paper-A4j]. The panel portion 70a may have a concave or convex level difference from other panel portions as necessary.

Copying Operation FIG. 15 is a flowchart showing an example of controlling the copying operation of the copying machine. This will be briefly explained with reference to the time chart of FIG. 17.

In block 10, when the print switch is turned on, the main motor Ml, the developing motor M2 . Charging jar 12. In addition to operating each of the transfer scanners 14, the copy flag indicating that the copying operation is in progress is set to "B", and the control timer T-A is set.
, T-B is started, and the clutch of the paper feed roller on the selected side is turned on.

In block 11, the end of the timer TA is determined and the paper feed clutch is turned off.

In block 12, the end of timer TH is determined,
The scan motor M3 is turned on to start the scan operation.

In block 13, when the timing signal is output during the scan operation, the timing roller clutch CL
3 is turned on, and a process of setting timer TC is executed. The copy sheet is conveyed by the timing roller 35 in synchronization with the image on the photoreceptor drum IO.

In block 14, it is determined that the timer TC has ended, and the charging and scan motor 2 timing roller clutches are respectively turned off. Note that the timer TC may be set variably depending on the size of the copy sheet used.

In block 15, when the optical system returns to the home position due to the return operation and the home position switch is turned on, the developing motor M2. Each transfer charger 14 is turned off, the copy flag is set to "0", and the timer T-
Processing to set D is executed.

In block 16, it is determined that the timer TD has ended, and the main motor M1 is turned off. Block I7 executes processing for various exits.

Note that the timer T-A-T-D, etc. explained in the above flow chart and time chart must be executed within the time specified by the internal timer. It is a digital timer that is programmed so that the time-up time will not be exceeded, and the time-up time is stored as numerical data.

As described in detail, according to the present invention, when copy magnification data is input and the input copy magnification data exceeds a predetermined magnification value, the copy magnification is automatically set within a predetermined range. Since the magnification is set within the range, even if the input magnification value exceeds the range, it will not become impossible to input, and the operation for inputting the copy magnification becomes easy.

Furthermore, since the present invention allows the copying magnification to be set steplessly with an extremely simple operation, the user can copy at any desired magnification at any time, which is extremely convenient for the operation of the copying machine. Furthermore, it is possible to correct the error between the preset copy magnification and the actual copy magnification at the user level, thereby making it possible to obtain accurate variable-magnification copies.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a copying machine to which the present invention is applied;
Figure 2 is a diagram showing the positional relationship of the lenses in the copying machine shown in Figure 1, Figure 3 is a perspective view of the mirror moving mechanism for the number of copies shown in Figure 1, and Figure 1 is the copying machine shown in Figure 1. FIG. 5 is a plan view showing the operation panel of the copying machine shown in FIG. 1, FIG. 6 is a block diagram showing an embodiment of the present invention, and FIG. Output circuit diagram used in the example,
FIG. 8 is a flowchart showing the general operation of the main part of the present invention, FIG. 9 is a flowchart showing a specific magnification setting program, FIG. 1O is a flowchart showing an example of a method of displaying the set magnification, and FIG. FIG. 12 is a flowchart showing details of a subroutine in the setting program of FIG. 1I, FIG. 13 is a flowchart showing a successive program for a specific magnification, and FIG. 14 shows a successive program for an arbitrary magnification. FIG. 15 is a flowchart showing a copying operation, and FIG. 16 is a waveform diagram showing a main part of the copying operation shown in FIG. 15. 72...Display 7I...Print switch 80~8...Numeric keypad 95~98.100~103...Selection key Q1~
Q8...Memory part 7th figure vrJ8 figure Maki page 12

Claims (1)

[Claims] (1) a manually operable numerical input means; a storage means for storing numerical data; and a numerical display means having a numerical display section with a predetermined number of digits for displaying the numerical value input by the numerical input means; a store operation means for storing the numerical value displayed on the numerical display means in the storage means by a predetermined operation; an effective magnification storage means for storing numerical data in an effective magnification range; and when the store operation means is operated. At this time, it is determined whether the numerical data is within the effective magnification range displayed on the numerical display means, and if it is outside the range, the numerical data is converted into numerical data within the effective magnification range and stored in the storage means. A copying magnification setting device comprising: a store control means for controlling the operation mode of the copying machine by using the numerical data stored in the storage means as copying magnification data.