JPS62161161A - Setting device for copy magnification - Google Patents

Abstract

PURPOSE:To allow an operator to know a wrong input even when a copy magnification set value exceeding the effective of a copying machine copy magnification is inputted and to facilitate input operation for copy magnification by displaying input numeral data and the effective copy magnification when the copy magnification data is inputted. CONSTITUTION:The presetting of magnification in storage parts Q1-Q4 which is carried out principally at the time of machine assembly or at the stage of the factory shipment of a machine is performed. When the copying machine is not in operation, magnification values A-H are set while made to correspond to selection keys 95-98 or 100-103. Data for controlling the position of a lens and the driving speed of a motor are transferred to a 2nd CPU 202 corresponding to the set magnification values. At this time, the data are transferred by initiating an interruption by the 2nd CPU 202. Other processes of temperature control over the heater of the copying machine, size decision making of copying paper, etc., are performed and processes for copying operation are carried out.

Description

TECHNICAL FIELD The present invention relates to a copying magnification setting device for a summer copying machine.

Conventional technology 9: Conventionally, so-called variable copy magnification type copying machines that enlarge or reduce originals can only set the copy magnification in predetermined stepwise magnifications, and therefore cannot copy at magnifications between each step. It was inconvenient that I couldn't do it. In addition, once the specified magnification is set in this way, the magnification taken in the summer may be slightly different from the accurate value due to mechanical error, etc. I haven't been able to do any operations for this.

Furthermore, copying machines have been proposed that enable stepless magnification using a sliding control lever, etc., but is this actually possible? U
It was difficult to understand the low magnification, and even if you tried to copy at that magnification again, it was difficult to reproduce the same magnification.

This invention provides a copy magnification setting that can automatically set at least the most significant digit of the maximum effective copy magnification to a copier even if the copy magnification value input using a numeric keypad or the like exceeds the effective copy magnification value of the copier. The purpose is to provide equipment.

A further object of the present invention is to provide a copy 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 object, the copying magnification setting device of the present invention includes a manually operable numerical input means, a storage means for storing numerical data, and a numerical data input by the numerical input means. a numeric display means having a numeric display section with a predetermined number of digits to display; and when the numeric value first input by the numeric input means is a numeric value other than the most significant digit of the effective copy magnification value;
display control means for causing the numerical display means to display the highest second digit of the effective copy magnification value and the first two-digit number; The present invention is characterized in that it comprises a store operation means for causing the two-leg storage means to be loaded by the operation of , and a magnification control means for setting the numerical value stored in the storage means as copy magnification data.

(2) With the above configuration, the magnification setting value input by the numerical input means is stored in the storage means by operating the store operation means. When the input magnification value exceeds the effective copy magnification value of the copying machine, the numerical value of the most significant digit of the effective copy magnification value and the input numerical value are displayed on the numerical display means.

Example 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 copying machine equipped with a magnification setting device according to the present invention. Approximately in the center of the copying machine body, a photoreceptor drum 1 that can be driven to rotate in a counterclockwise direction is arranged, and around it a main eraser assembly 2. Sub charging charger 3
．． Sub eraser lamp 4, main charger 5. Developing device6. Transfer chart 7, paper separation 8. A blade type cleaning device 9 is provided. The photoreceptor drum I has a photoreceptor layer on its surface.
This photoreceptor is sensitized and charged by passing through the eraser lamp 2.4 and charger 3.5, and receives image exposure from the optical system IO.

The optical system IO is installed below the original glass 16 so that the original image can be scanned, and includes a light source (not shown), a movable mirror +
1.12.13, a lens I4, and a mirror 15. The light source and the movable mirror 11 are connected to the circumferential velocity (V) of the photosensitive drum I (at the same magnification).

(constant regardless of magnification), the movable mirror moves to the left at a speed of (v/n
is driven by DC motor M3 to move leftward at a speed of (v/2n). When changing the copying magnification, the lens I4 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 2 and 2 on the left side of the summer photo printer body.
1 (Cu2), 23 (Cu3)
2 is installed, and the conveyance path of the copy paper is a pair of rollers 24, 25,
Timing roller pair 26 (OL1), conveyance heald 27,
It is composed of 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 change mechanism allows you to select virtually stepless magnification from enlargement to reduction, so specifically, from enlargement (xl, 414) to same size (x1) to reduction (xo, 647) The magnification up to 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 moved freely, and the middle part of the drive wire 37 is fixed to the side part of the lens 14. therefore,
By rotating the stepping motor M4 forward and backward at a predetermined rotation speed, the drive wire 37 is
rotates forward and backward, the lens 14 moves along the guide rail 36 on the optical axis in the left-right direction in FIG. 3, and is stopped at a position corresponding to the magnification.

The mirror moving mechanism 40 includes a guide sleeve in which the mirror 15 is fixed on the back side to a shaft 43 rotatably supported by a moving body 41, and side pieces 42 and 42 of this moving body 41 are installed parallel to the optical axis. 45, and a rotatable roller 44 provided at the end of the +iir shaft 43 is placed above the hli support rail 46. Further, a movable drive cam 5 is attached to a bin 50 provided on the movable body 41 via a bracket 49.
The movable body 41 is urged toward the cam 53 by a coil spring 48 whose one end is fixed to the pin 47. The gear 33 fixed to the power shaft 31 of the Snasten Pink Motor M4 meshes with the gear 52 fixed to one end of the support shaft 51, and the cam 53 is fixed to the other end of the support shaft 5I.

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 4I, that is, the mirror 15, 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 3 is biased toward the cam 57, while a pinion gear 59 fixed to a support shaft 56 is engaged with a rack 60 attached to the main body of the copying machine.
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 1 by simply moving the mirror 15 when changing the magnification. When changing, the mirror I5 is 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 five pinion gears are transferred on the rack 60 and the cam 57
rotates about the shaft 56, and the mirror 15 swings about the shaft 43 as a fulcrum in accordance with the shape of the circumferential surface of the cam 57, thereby correcting the exposure point.

In this case, the swing angle of the mirror 15 is positioned so that the optical axis of the light beam reflected by the mirror 15 is directed toward the center of the photoreceptor drum l at the maximum magnification (in this embodiment, at the time of magnification). 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 optical axis at the maximum magnification, where the distortion of the exposed image appears most conspicuously, is incident perpendicularly to the photoreceptor drum 1, so that the exposed image due to the overall deviation of the incident angle can be This makes the distortion less noticeable.

FIG. 5 shows the arrangement of the operation keys on the operation panel of the copying machine. The operation panel 70 includes a print key 71 for starting the copying operation, a numerical display device 72 capable of displaying a four-digit numerical value. 1.2 respectively. ..., 9
．． Numeric keypad corresponding to the number 0 80-897 interrupt) 9
Interrupt key 90° Clear/stop key 9 to specify the photo
1. A paper selection key 92 for specifying copy paper loaded in multiple stages by size. Up and down keys 9 for changing and specifying the copy image density in steps
3.94 and key group 9 related to the copying magnification setting device of the present invention
5 to 103 etc. are arranged.

First magnification setting keys 095, 96. ! 17.98 is placed for the purpose of arbitrarily setting the magnification, and the first
When the key 99 for switching the magnification setting mode is operated to switch to the copying machine control mode or the first magnification setting mode, when any key is operated, an input is made using the numeric keypad and displayed on the display device 72. The displayed numerical value is stored as a copy magnification in the memory corresponding to the operated key.

Second magnification setting key group 100.101.102°103
have predetermined copy magnifications set in their corresponding memories, and copy operations can be executed based on preset values without having to set numerical values as in the case of the first group of keys. It is considered as such. Therefore, the preset copying magnification should be selected, for example, a magnification that is considered to be commonly used for the destination at the time of shipment from the factory. 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 generally used, for example, for domestic specifications, A4-135. I34→A4
．． A3→A4. Alternatively, it is given a role with a functional upper limit such that the magnification corresponding to A4→A3, etc. is preset. However, since the preset value for the second key group is a general or calculated copy magnification, the actual copy magnification may differ slightly from that due to mechanical or design errors. It may be different. For example, even if you select the same size (×1), the actual size is (xl,
004) or (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.
It is possible to obtain a desired copying magnification by setting arbitrary numerical values in the memory corresponding to each of the keys 100 to 103 using the same operation as in the first magnification setting mode. 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 first CPU, 202 is the second CPU,
03 is a RAM, 204 is a switch matrix, 205 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 A1 to A7 are connected to the main motor M+ and the developing motor M3. Timing roller clutch CL I, upper paper feed latch CL2. Lower paper feed latch CL 3, charger 5. Each drive switching transistor (connected to the seventh (4)) of the transfer charger 7.

! ? The AM 203 stores various software programs for mutual operation control, as well as a memory section Ql corresponding to the selection keys 100 to 103.

Q 2 , Q 3 , and Q 4 , and 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 changed to the storage unit Q 11 . : is written or read out, and when the selection key 101 is turned on, the magnification is written into or read out from the storage section Q2.

Also, for the selection keys 95 to 98, the storage units Q5 and Q6
．． Q7. Q8 is provided in the same manner as described above, and for example, when the selection key 95 is turned on, the magnification is written to or read from the storage section Q5.

This RAM 203 is backed up by a battery, for example, and the stored contents are retained even if the power is cut off.

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 will be described in 1. U-Legally Explained-FIG. 8 is a flowchart schematically and comprehensively showing the processing procedure in the first CPU.

In steps Sl and S2, the above-mentioned storage section Ql-
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 the copying operation, a process is executed to set the magnification A - r (corresponding to each selection key 95 to 98 or 100 to 103. Details of this process are shown in FIG. 10). ~ Shown in Figure 12.

In step S5, data for controlling the lens position and motor drive speed is transferred to the second CPU 202 in accordance with the magnification set in step S4. When transferring this data, the second CPU 202 processes it by interrupt.

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
FIG. 6 is a time chart showing the operation.

Figure 9 shows key 1 for setting the second magnification! T, +00～
103 is a flowchart showing details of initial setting processing for presetting predetermined numerical values in the memories Q1 to Q4 corresponding to No. 103. The initial switch in step Sl 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 the user. 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 associated with the operation of the keys 105, 106, and 107 shown in FIG.
Specifically, at the time of machine assembly or factory shipping, the operator or destination turns on and off switches 105 to 107 according to a combination determined in advance by the customer, etc., and closes the initial switch. Predetermined numerical values are preset in the memories Q1 to Q4 by. Steps 5501 and 5502 indicate a process of setting in each memory Q1 to Q4 the number of magnifications of 1 for each combination of ON and OFF of the switches 105 to 107 stored in the first CPU 201. Table 1 shows specific examples of preset values for combinations of OFF and OFF. Shown below.

Table 1 Note that the numerical value "0" does not indicate that the magnification is set to 0, 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 Q1 to Q8 corresponding to selection keys 95 to 98 and 100 to 103, the processes shown in FIGS. 10 to 12 are executed.

In FIG. 10, in step 5IOI, 5102, if the key 99 or 104 is operated to switch to the copy magnification setting mode, the first. It is determined which of the second keys "t" is requested to set the machine rate.Key 9
When key 9 is operated, it is the first copy magnification setting mode, and flag A is set to "bi." When key 104 is operated, flag 13 indicating the second copy magnification setting mode is set to "bi." .

If key 99 or +04 is operated, step 5I03. At S+05, processing is executed to set the 1000th brush to "b" and set the 1st brush to "0". That is, when the control of the copying machine is switched to the magnification setting mode, the numerical display device 72 displays "bbb o". ” (b is blank) will be displayed, and the system will be in a standby state where it will 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 rlJ key is 80, the process advances to step 5108 and displays "B" at the 1000th position.

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

The input numerical values will be explained using expressions such as 10th place and 1st place, or the numerical value as a magnification will be treated as a lO base number with 3 digits after the decimal point and 4 digits as significant figures. .

The 1000th place flag is “BI” and the input value is 0.
Or in the case of 2 to 9, step Sil.

, and display "0" in the 1000th place. Then, if the input is rOJ, step 5I0 along with the case of "l"
Proceed to step 9, set the 1000th flag to "0", set the 100th flag to "B", and wait for input to the 100th digit.Input or 2
~9, in step 5112 the l000th flag is set to “
0", the process proceeds to step 5115, where the input numerical value is displayed in the 100th digit.

The above-mentioned processing when the 1000th place flag is "B" is based on the above-mentioned statement that values in the range of 0647 to 1.414 are treated as valid copy magnifications, and therefore the 1000th place flag is "B". or “0” can be displayed. Also, by doing this, “0” is placed in the 1000th digit.
This simplifies key operations when inputting . Note that when such processing is executed, there may be a case where the value inputted below the 100th place becomes 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 operated key is inputted, and in step 5115, the numerical value is displayed, and in step 5II6, a process is executed in which the 100th place flag is set to "0" and the 10th place flag is set to "B". Enter the 10th place below,
Enter the first place using the numeric keypad.

The flowchart in FIG. 11 shows a process for storing the numerical value input and displayed in the process in FIG. 10 in the memory corresponding to the selection key to be operated next.

In step S20 +, first! It is determined whether the mode is the magnification setting mode or the second magnification setting mode. Since step 5201 is executed only when either flag A or B is "BI", for example, only the determination of whether flag A is "BI" is executed, and flag 8 is "BI". If so, it is the first magnification setting mode,
First selection key! ! 'Proceed to step 5218 and subsequent steps to determine the operations of T95 to T98, and when the flag A is not "BI", that is, when the flag B is "BI", the second magnification setting mode is selected. key n+00-103
The process advances to step 5202 and subsequent steps in which the operation is determined.

In the process shown in FIG. 11, in any of the magnification setting modes, the displayed 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 allowed for the copying magnification 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 value is smaller than 0.647, and if it is smaller, step 523 is performed.
1 sets the display to 0647.

Also, in step 5232, the displayed value is l 4
(It is determined whether or not it is a dog based on 4, and if it is larger, the display is set to 1.414 in step 5233.

Therefore, to explain in relation to Fig. 11, when a predetermined selection key is operated in the magnification setting mode, if the displayed numerical value is outside the permissible range, the display is changed to the permissible limit value and then displayed. The numeric value is stored in the memory corresponding to that key. When the process of storing the numerical value in the memory is executed, flag A is set to "0" in the case of the first magnification setting mode, and flag B is set to "0" 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 7,9208, "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
The standard setting value for the number of copies is "B".

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 1
03 is operated, light emitting diodes 100a, 101a,
Among 102a and 103a (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 is 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 group of selection keys, if the numerical value stored in the memory corresponding to the operated key is not 0, that numerical value is transferred to the second CPU 202 as magnification data; Proceed to step 5412.

In steps 5412 and 5413, 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, and the "0" selection state is deafened. 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
When is set to "0", in step 8426, the light emitting diode corresponding to the "previous" memory called out in step S4+2 is lit, and in step 5427, the numerical value stored in that memory is transferred to the 20th PU 202. In other words, when a key corresponding to a memory having the numerical value "0" is operated, the process is performed so that the state is the same as if no operation had been performed.

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 second CPU 202 in accordance with the copying magnification.
The stepping motor M4 is controlled to rotate in both forward and reverse directions, for example, so as to rotate by one pitch with respect 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.
The speed control of the direct current DC motor, which is the drive source, is controlled by the control device 205 based on the output of the drive source 2. Many methods have been proposed or provided in the past, 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 can be configured as a whiteboard that can be written on and erased using a prescribed writing instrument, a removable adhesive sticker, or a panel that can be attached and detached by magnetic force. It is convenient to use the magnification of the numerical value set arbitrarily by the user, for example, to write characters such as ``Tarashi paper → A4J''. Alternatively, a convex step may be provided.

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 charger +2. The transfer charger 14 is activated, the copy flag indicating that the copy operation is in progress is set to "B", and the control timer T-A is set to "B".
, 'I'-B is started, and the clutch of the paper feed roller on the selected side is turned on.

In block 11, it is determined that the timer TA has expired, and the paper feed cranny is turned off.

In block 12, the end of timer T-B is determined, and
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 'r-C 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, scan motor, and timing roller clutch are turned off. Note that the timer T-C may be set variably depending on the size of the copy sheet to be 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 17 executes processing for various outputs.

Note that the timers T-A to T-D, etc. explained in the above flowcharts and time charts are one of the processes of the MC 50 that are executed within the time specified by the internal timer.
This is a digital timer programmed to be counted up in a routine, 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, the entered numerical data and the effective copy magnification of the copier are displayed, so that numerical input using a numeric keypad or the like is not necessary. Even if the copy magnification setting value entered by the means accidentally exceeds the effective copy magnification, the operator can know the erroneous input, and at least the first digit of the copy magnification setting value is set to a value that allows copying. be able to execute. Therefore, by using this function, it is possible to simplify the operation of inputting the copy magnification.

Furthermore, since the present invention allows the user to set the copying magnification steplessly with an extremely simple operation, the user can copy at any time and at any magnification, which is extremely convenient for the operation of the copying machine. In addition, the user can correct the error between the 9 copying magnification and the actual copying magnification, which has been preliminarily set, and obtain an accurate variable-magnification copy.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a copying machine to which the present invention is applied;
2 is a diagram showing the positional relationship of lenses in the copying machine shown in FIG. 1, FIG. 3 is a perspective view of the mirror moving mechanism in the copying machine shown in FIG. 1, and FIG. 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. The output circuit diagram used, FIG. 8 is a flowchart showing a schematic operation of the main part of the present invention, FIG. 9 is a flowchart showing a specific magnification setting program, and FIG. 1O is a flowchart showing an example of a method of displaying a set magnification. Fig. 11 is a flowchart showing details of the magnification setting program, Fig. 12 is a flowchart showing details of subroutines in the setting program of Fig. 11, Fig. 13 is a flowchart showing a series of specific magnification programs, Fig. 14 is an arbitrary FIG. 15 is a flowchart showing a magnification successive program, 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 71...Print switches 80-89...Numeric keys 95-98, 100-103...Selection keys Ql-Q
8...Storage section Patent applicant: Minolta Camera Co., Ltd. Agent: Patent attorney: 2 people, including Ao-Haku Ao, Fig. 7, Fig. 8

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; When the first numerical value input using the numerical input means is a numerical value other than the most significant digit of the effective copy magnification value,
display control means for displaying on the numerical display means the most significant digit of the effective copy magnification value and the first input numerical value; and storing the numerical value displayed on the numerical display means by a predetermined operation. A copying magnification setting device comprising: a store operation means for causing the storage means to store the numerical data; and a magnification control means for setting the numerical data stored in the storage means as copying magnification data.