JPH0555866B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD This invention relates to a copying magnification setting device for a copying machine. Prior Art In a variable-magnification copying machine that enlarges or reduces a document for copying, a plurality of desired copying magnifications are entered by key operation, and the inputted copying magnifications are automatically set to a predetermined value based on the size relationship. A device for storing information in a storage area has been proposed. The user can select a desired copying magnification from among the stored copying magnifications and make a copy. Problems to be Solved by the Invention There is a demand for the above-mentioned apparatus to allow the user to arbitrarily select a storage area in which the copying magnification is to be stored. Therefore, after the user selects one of the plurality of storage areas, by inputting an arbitrary copying magnification, that copying magnification can be stored in the selected storage area. It is conceivable that in a copying machine configured in this way, if you accidentally operate the operation means for selecting a storage area while inputting the copy magnification, the selection state of the storage area will change and you will have to try again. Not only would it be necessary to redo the magnification setting operation from the beginning, but there was also the risk of changing numerical data stored in another storage area. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a simple method in which the selection state of the storage area does not change even if the operation means for selecting the storage area is operated by mistake while inputting the copy magnification. It is an object of the present invention to provide a copying magnification setting device capable of storing an arbitrary copying magnification in a desired storage area by operation. Means for Solving the Problems In order to achieve the above-mentioned object, a copy magnification setting device according to the present invention includes a memory having a plurality of storage areas and storing copy magnification data in each storage area; an operation key for selecting one of the plurality of storage areas; a selection control means for selecting one of the plurality of storage areas in response to an operation of the operation key; a mode setting means for setting a magnification setting mode for setting magnification data; a mode canceling means for canceling the magnification setting mode set by the mode setting means; and a mode setting means for canceling the magnification setting mode set by the mode setting means; After the mode is set, a numerical input means for inputting numerical data; and a memory control for storing the numerical data input by the numerical input means as a copy magnification in the storage area selected by the selection control means. and from the time when numerical input is started by the numerical input means until the magnification setting mode is canceled by the mode canceling means, the selection control means has already selected the mode regardless of the operation of the operation keys. and prohibiting means for prohibiting an operation of changing the storage area in the memory to another storage area in the memory. Embodiment An embodiment of the present invention will be described below with reference to the drawings. Copying Mechanism FIG. 1 shows an example of an electrophotographic copying machine equipped with a magnification setting device according to the present invention. A photoreceptor drum 1 that can be rotated counterclockwise is disposed approximately in the center of the copying machine body, and around it are a main eraser lamp 2, a sub-charger 3, a sub-eraser lamp 4, a main charger 5, developing device 6,
Transfer charger 7, copy paper separation charger 8,
A blade type cleaning device 9 is provided. The photoreceptor drum 1 has a photoreceptor layer provided on its surface, and this photoreceptor is connected to the eraser lamps 2 and 4.
The document is sensitized by passing through chargers 3 and 5, and exposed to light from the optical system 10. The optical system 10 is installed below the original glass 16 so that the original image can be scanned, and includes a light source (not shown).
Movable mirrors 11, 12, 13, a lens 14,
It is composed of a mirror 15. The light source and the movable mirror 11 have a circumferential velocity (v) of the photoreceptor drum 1.
(constant regardless of magnification or variable magnification) (v/n)
(however, n: copy magnification) moves to the left at a speed of
The movable mirrors 12 and 13 are driven by a DC motor MS so as to move to the left at a speed of (v/2n). 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, paper feed units 20 and 22 each having paper feed rollers 21 and 23 are installed on the left side of the copying machine main body. , 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 virtually stepless selection of magnification from enlargement to reduction, and specifically, from enlargement (×1.414) to normal magnification (×1) to reduction (×0.647). The magnification 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 is such that the lens 14 is movably mounted on a guide rail 36 installed parallel to the optical axis, and the lens 14 is movably attached to the output shaft 3 of the stepping motor M4.
A drive wire 37 wound around a drive pulley 32 fixed at 1 is stretched around rotatable pulleys 38, 38,
In addition, the intermediate portion of the drive wire 37 is fixed to the side portion of the lens 14. Therefore, by rotating the stepping motor M4 forward and backward at a predetermined rotation speed, the drive wire 3 is
7 rotates forward and backward, and the lens 14 rotates on the guide rail 36.
It moves along 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 has a guide shaft 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 of the moving body 41 are set parallel to the optical axis. 45, and a rotatable roller 44 provided at the end of the shaft 43 is placed on an auxiliary guide rail 46. Further, the peripheral surface of a movable driving cam 53 comes into contact with a pin 50 provided on the movable body 41 via a bracket 49, and the movable body 41 is moved toward the cam 53 by a coil spring 48 whose one end is fixed to the pin 47. energized. Output shaft 31 of the stepping motor M4
A gear 33 fixed to is engaged with a gear 52 fixed to one end of a support shaft 51, and the cam 53 is fixed to the other end of the support shaft 51. Therefore, the rotation of the stepping motor M4 is transmitted from the gear 33 to the cam 5 via the gear 52 and the support shaft 51.
3, the movable body 41, that is, the mirror 15 moves back and forth on the optical axis according to the peripheral surface shape of the cam 53,
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 is changed, and their positional relationship is as shown in FIG. 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 step by step, a mechanism that selects several types of magnification is used. be able to. On the other hand, the mirror swinging mechanism 55
The circumferential surface of a swing drive cam 57 fixed to a rotatable support shaft 56 provided in the coil spring 5 is brought into contact with the back surface of the mirror 15, and the mirror 15 is wound around the shaft 43.
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, and the rack 60 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. 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 60 and the cam 57 rotates together with the support shaft 56.
The mirror 15 is attached to the shaft 43 according to the peripheral surface shape of the cam 57.
The exposure point is corrected by swinging around the fulcrum. 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 the optical axis is directed to the same exposure point as the exposure point at the maximum magnification. Since the slit-shaped image is enlarged and projected, the optical axis at the maximum magnification, when the distortion of the exposed image appears most conspicuously, is incident perpendicularly to the photoreceptor drum 1, thereby reducing the overall deviation of the angle of incidence. This makes distortion of the exposed image less noticeable. Control Device 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 7 for starting the copying operation.
Numerical display device 72 capable of displaying 1- and 4-digit numerical values;
Numeric keys 80 to 89 corresponding to the numerical values 1, 2, ..., 9, 0, respectively, an interrupt key 90 for specifying interrupt copying, a clear/stop key 91, specifying copy paper loaded in multiple stages by size. A paper selection key 92 for changing and specifying the copy image density in steps, increase and decrease keys 93 and 94 for changing and specifying the copy image density, and a group of keys 98 to 103 related to the copy magnification setting device of the present invention are arranged. The selection key 98 is arranged for the purpose of sequentially recalling the copying magnification after setting the copying magnification as desired, and when the key 99 for switching to the first magnification setting mode is operated, the control mode of the copying machine is changed. When the selection key 98 is operated in the state switched to the first magnification setting mode, the numerical values inputted by the numeric keys and stored in the storage areas Q5 to Q8 are sequentially displayed on the display device 72. That is,
By turning on the selection key 99, the first magnification setting mode is set, and by turning on the key 98, the first magnification setting mode is set.
Magnification setting mode is canceled. Here, key 98
As shown in FIG. 11, after the first magnification setting mode is canceled, the 4-digit number entered in the first magnification setting mode is Used to instruct numerical data to be stored sequentially in the storage area. Also, if you want to change the magnification, as will be described in detail later, after turning on key 99, when the magnification you are trying to change is displayed, press numeric key 8.
When a desired numerical value is input from 0 to 89, that numerical value is written into the corresponding storage area. Magnification setting key group 100, 101, 102, 10
3 has a predetermined copying magnification set in advance in its corresponding memory, and the copying action is executed based on the preset numerical value without having to set numerical values as in the case of the first key group. consideration has been given to making it possible. Therefore, the preset copying magnification is, for example, a magnification that is considered to be commonly used for each destination at the factory shipping stage. This will be explained in detail later. In this way, the selection key 98 allows the user to arbitrarily set the required copying magnification, and the magnification setting key group 100
~103 are commonly used. For example, in the case of domestic specifications, different functions are assigned such that magnifications corresponding to A4→B5, B4→A4, A3→A4, or A4→A3 are preset.
However, since the values preset for the magnification setting keys are general or calculated copy magnifications, the actual copy magnification may differ due to mechanical or design errors. It may vary slightly. For example, even if you select the same size (×1), the actual size is (×1.004) or (×
0.996). 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 in the same manner as in the first magnification setting mode. Specifically, the number 1.002 or
0.998 may be set. FIG. 6 shows a control circuit used in the magnification setting device of the present invention, 201 is the first CPU, 202 is the first CPU, and 202 is the first CPU.
2CPU, 203 is battery backup 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 zooming, and 207 is a decoder. Note that output terminals A1 to A7 are used for main motor M1, developing motor M3, timing roller clutch CL1, and upper paper feed clutch, respectively.
It is connected to drive switching transistors (FIG. 7) of CL2, lower paper feed clutch CL3, charger 5, and transfer charger 7. Various data for copying operation control is written in the RAM 203 or shifted from the ROM in the CPU and stored therein.
Corresponding to 00 to 103, memories Q1, Q
2, Q3, and Q4, 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 written to or read out from the memory Q1, and the selection key 101 is When turned on, the magnification is written to or read from the memory Q2. The RAM 203 has memories Q5 to Q8 for storing setting magnifications for the selection keys 98.
The memories Q5 to Q8 are designated by a memory counter (not shown) in 1CPU 201. This memory counter counts 0 to 3 depending on the number of times the selection key 98 is pressed. In this first magnification setting mode, first the key 99 is operated, and then the selection key 98 is turned on, for example once, the memory counter becomes 0, the memory Q5 is designated, and the magnification written in the memory Q5 is set. is displayed on the display device 72. Next, when the selection key 98 is pressed, the memory counter becomes 1, memory Q6 is designated, and the magnification written in Q6 is displayed. Similarly below,
Each time the selection key 98 is pressed, memory Q7, Q8, Q
The magnifications are read out in the order of 5, Q6, . To rewrite the stored data, call the specified storage section using the above method, and then enter the new magnification using the numeric keypad 80-8.
9 can be input. FIGS. 8 to 15 are flowcharts showing processing procedures for setting magnification and controlling copying operations executed by the first CPU 201. FIG. The present invention will be specifically explained below based on this. FIG. 8 is a flowchart schematically and comprehensively showing the processing procedure in the first CPU 201. In steps S1 and S2, magnification presetting processing for the storage units Q1 to Q4 is executed, which is mainly done when the machine is assembled or when the machine is shipped from the factory. Details of this process are shown in FIG. In steps S3 and S4, when the copying machine is not in copying operation, select keys 98 or 100 to 103 are pressed.
A process for associating and setting magnifications A to H is executed. The details of this process are shown in Figures 10 to 1.
Shown in Figure 2. 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
In 02, this is handled by an interrupt. Details of step S5 are shown in FIG. In step S6, other processes such as controlling the temperature of the heater of the copying machine and determining the size of the copy paper are collectively shown. In step S7, processing for controlling the copying operation is executed. Details of this process are shown in FIG. 15, and FIG. 16 is a time chart showing the operation. FIG. 9 is a flowchart showing details of the initial setting process for presetting predetermined numerical values in the memories Q1 to Q4. 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 a factory or for service personnel. The process shown in FIG. 9 is executed only when the switch is operated. The numerical values preset in memories Q1 to Q4 are:
It is determined by the on/off state of the switches shown at 105 and 106 in Fig. By turning the switches 105 and 106 on and off according to the combination determined in advance by, etc., and closing the initial switch, predetermined values are preset in the memories Q1 to Q4. . Next, the process is to set the magnification values for the on/off combinations of the switches 105 and 106 stored in the first CPU 201 in each of the memories Q1 to Q4.
Table 1 shows specific examples of preset values for on/off combinations of 06.

[Table] When setting numerical values as copy magnifications in the memories Q1 to Q4 corresponding to the selection keys 98 and 100 to 103, the processes shown in FIGS. 10 to 14 are executed. Next, the magnification setting method will be explained. As shown in FIG. 10, when the key 99 is turned on to set the first magnification (step S104),
(YES), flag B indicating that the first magnification setting mode is set is set to 1 in step S105.
Then, in step S106, a flag C, which will be described later, is reset to 0. On the other hand, when the key 104 is turned on to set the second magnification (YES in step S100), flag A indicating that the second magnification setting mode is set becomes 1 in step S101. Further, when the numeric keys 80 to 89 are operated after the key 99 is turned on, a flag C indicating that an input has been made from the numeric keys in the first magnification setting mode becomes 1 (steps S111 and S115).
reference). For example, the first magnification setting mode is set in step S105 by turning on the key 99 for setting the first magnification setting mode in which an arbitrary copying magnification is memorized and set (YES in step S104). After flag B indicating 1 becomes 1 and flag C is reset in step S106, step
In step S107, the memory counter is reset to 0, and in step S103, the 1000th flag is set to 1. The control flow then steps
The process advances to step S152 via NO in S108, YES in step S105, and YES in step S151 in FIG.
At this time, each time the key 98 is turned on, the memory counter can be incremented (step S153), and the operator can increment the four memory counters = 0.
Display of copy magnification data in memories Q5 to Q8 according to steps S157, S159, S161,
S162) and select the storage area to be updated.
Further, when numerical data is input, the control flow advances from YES in step S109 in FIG. 10 to step S110. At this time, numeric keypad 80-89
When a numerical value is input using , the numerical input routine from step S110 to step S133 located at the bottom of FIG. 10 is executed. In this numerical input routine, first, the steps are performed according to the first 1000th numerical data input.
The process advances to S111 or S115, where the flag C indicating that there is an input from the numeric keypad becomes 1, and at this point, a prohibition period has entered which prohibits changing the storage area for inputting numerical data by rotating it. enter. In this embodiment, when flag B=1 and flag C=1, the prohibition period is reached. 1000th place, 100th place, 10th place, 1st place within the relevant ban period
When the key 98 instructing to store the copy magnification is turned on after the numerical data of the digit has been input, that is, the control flow changes from NO in step S179 to YES in step S200, as shown in FIG. Proceeding to step S202 via YES in step S201, and according to the memory counter, (a) first storage processing consisting of YES in step S202, step S203, and step S204; (b) YES in step S206 and step S207. , a second memory process consisting of step S208; (c) a third memory process consisting of YES in step S209, step S210, and step S211; (d) a third memory process consisting of YES in step S212, step S213, and step S214. 1 out of 4 amnestics
After the storage process is executed, the process advances to step S205. Here, by resetting flag B, the first magnification setting mode is canceled and the storage area rotation prohibition period is canceled. From then on, the control flow returns to the main routine shown in FIG.
In the magnification selection routine (step S5) shown in the figure,
Step 1 by turning on key 98
At S269, S273, and S276, the copy magnification data can be read out in S278 in a state where the storage area can be changed. As explained above, after the first magnification setting mode is set (flag B=1, flag C=0),
Enter the numerical data of the copy magnification data using the numeric keypad 80 to 8.
9, the flag C is set to 1, and a storage area rotation prohibition period starts, and the control flow starts from step S151 in FIG. 11 while the numerical data is being input. Since the process does not proceed to step S152, rotation of the storage area is prohibited. Furthermore, after completing the input of 4-digit numerical data, by turning on the key 98 (YES in step S201) to store the numerical data in a predetermined storage area, flag B is reset to 0 (step S205). ), the prohibition period will end. For example, when the key 98 is turned on, flag B becomes 1 in step S105 in FIG.
Flag A is 0. Further, if the numeric keypad is not operated, the flag C is 0. In this state, proceed to step S107, set the memory counter to 0, then proceed to step S103, set the 1000th flag to 1,
Proceeding to step S108, since A=0, the first
Proceed to step S150 in Figure 1. If the selection key 98 is not turned on, the process advances to step S157 through step S156, and the memory Q is
The magnification written in 5 is read out and displayed on the display device 72. If a copying operation is performed at this time, the copying will be performed at the read magnification. Once the selection key 98 is turned on, the step
In S153, the memory counter content is increased by 1,
Its content is 1. Then, proceeding from step S158 to step S159, specify memory Q6,
The magnification written in the memory Q6 is read out and displayed to enable copying at that magnification. Thereafter, in the same manner, each time the selection key 98 is turned on, the memory counter increments by one, the magnification written in the memories Q7 and Q8 is read out, and the copying is performed at the read magnification. possible.
When the content of the memory counter reaches 4, the step
In S155, the content is set to 0, and the process returns to steps S156 and S157 to read out the set magnification in the memory Q5. For example, when the content of the memory counter is 1 and the memory Q6 is designated, if you want to rewrite the setting magnification of the memory Q6, operate the numeric keys 80 to 89 corresponding to the magnification, and the process will proceed to step S151. Step S109 through V from
The program then proceeds to rewrite processing of the memory Q6. This rewriting process will be described later. Next, the second magnification setting mode will be explained. By turning on the key 104, flag A is set to 1 in step S101. and the first
In steps S102 and S103 in Figure 0, processing is executed to set the 1000th place flag to "1" and to set the display of the 1st place to "0". That is, when the control of the copying machine is switched to the second magnification setting mode, the numerical display device 72
will be displayed as “bbb0” (b is blank) and 1000
It enters a standby state to accept input from the digit digit. If the numeric keypad is operated in this state, the step
The type of key is determined in S110, and only when the "1" key is 80, the process advances to step S112 and "1" is entered in the 1000th place.
Display. In addition, here, for convenience's sake in relation to the numerical display device 72, the numerical values input will be explained using expressions such as 1000th place, 100th place, 10th place, and 1st place, but the numerical value as a magnification is 3 digits after the decimal point and 4 significant figures. 10 of
Treated as a base number. If the 1000th place flag is "1" and the input numerical value is 0 or 2 to 9, the process advances to step S116 and "0" is displayed at the 1000th place. Then, if the input is ``0'', step
Proceeding from S119 to step S113, the 1000th place flag is set to "0", the 100th place flag is set to "1", and input is made to the 100th place digit. Step if input is 2-9
After setting the 1000th place flag to "0" in S118, the process advances to step S121 and the input numerical value is displayed in the 100th place digit. The processing described above when the 1000th place flag is "1" is based on the premise that values in the range of 0.647 to 1.414 are treated as valid copy magnifications, and therefore the 1000th place digit is "1". ” or “0” can be displayed. Moreover, by doing this, the key operation when inputting "0" to the 1000th digit is simplified. Note that even if such processing is executed, there may be a case where the numerical value inputted below the 100th place falls outside the range of the above-mentioned effective copying magnification. Regarding the processing at this time, see the first
This will be explained in the subroutine section of Figure 3. When a numerical value is input in the 1000th place digit, the 100th place flag becomes "1", and when the numeric keypad is operated in this state, the numerical value corresponding to the operated key is inputted in the 100th place digit, and that value is displayed in step S121. At the same time, in step S122, the 100th flag is set to "0" and the 10th flag is set to "1". Hereinafter, the input of the 10th place and the 1st place are also performed by operating the numeric keypad. The flowchart of FIG. 12 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 to be operated next. That is, when the case data is input as described above, the process goes through Y in FIG. 12, and if the flag A is 1 (YES in step S179), the process goes to step S180, and if the selection key 100 is on, the process goes to subroutine S18.
1, the process advances to S182, and the input data is written into the memory Q1. If the selection key 101 is on, the process advances to S186 via subroutine S185, and the input magnification is written in the memory Q2.
The same applies to the other selection keys 103 and 104. FIG. 12 also shows the write process in the first magnification setting mode described in FIG. 11. Further, when 98 is turned on, the memory counters are written into Q5 to Q8, respectively, according to the value of the memory counter at that time. In the process shown in FIG. 12, 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, the first
In the process shown in the figure, after determining the operation of each key, subroutines shown in steps S181, S185, S188, and S190 are executed to prevent numerical values outside the permissible range from being stored in the memory. The processing of this subroutine step is shown in FIG. The subroutine in Fig. 13 (step S181,
S185, S188, S190, S203, S207, S210, S213)
, if the display is not “0” (step
(YES in S229), in step S230 it is determined whether the displayed numerical value is smaller than 0.647, and if it is smaller, the displayed value is changed to 0.647 in step S231.
shall be. Further, in step S232, it is determined whether the displayed numerical value is greater than 1.414, and if it is, the displayed value is set to 1.414 in step S233. Therefore, to explain in relation to FIG. 12, 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 is Stores the current value in the memory corresponding to that key. When the process of storing numerical values in the memory is executed, flag B is set to "0" in the first magnification setting mode, and flag A is set to "0" in the second magnification setting mode, and the process proceeds to the next step. FIG. 14 shows selection key groups 100 to 10, respectively.
3 shows the magnification selection routine processing (step S5) executed when the selection key 98 is operated. In FIG. 14, keys 100, 101, 10
When either of 2 and 103 is operated,
Of the light emitting diodes 100a, 101a, 102a, and 103a (see FIG. 5) provided corresponding to each key, the one corresponding to the operated key is lit, and then each of the corresponding memories Q1 to Q
If the content of 4 is not "0", the second CPU 20 uses the numerical value stored in the memory as the magnification data.
Transfer to 2. On the other hand, once the selection key 98 is turned on, the process advances from step S266 to S267, the LED 98a is turned on, and the display counter is set to 0 in step S268.
If it is 0, the process advances to step S269, where the memory Q5 transfers the contents to the CPU 202, displays them on the display device 72 at S270, and advances to step S271, where the display counter is incremented by one. When the selection key 98 is turned on again, the step
Proceeds from S272 to S273, and the contents of memory Q6 are
202. Thereafter, in the same manner, each time the selection key 98 is turned on, the display counter increments by one to display memories Q7 and Q8, and again memory Q5.
Return to The above is an explanation of the setting operation in the magnification setting device of the present invention. As is clear from this description, according to this magnification setting device, multiple magnifications can be easily set using the first magnification setting mode with one selection key 98 for any copying magnification required by each user. You can also change the magnification by 1 at any time if necessary.
The user can use the numerical value as control data for the copying machine while confirming the magnification that has been called up and set by operating the two selection keys on the display. In addition, according to the second magnification setting mode, the error between the numerical copy magnification and the copy magnification that is actually obtained with a preset predetermined copy magnification is read and the magnification is corrected. The effect that such work can be performed extremely easily is achieved. In response to the numerical value set in this way, the lens 14 outputs the image to the second CPU 202 in accordance with the copying magnification.
The movement of the stepping motor M4 is controlled by the controller 206 based on the output of . Therefore, practically stepless variable magnification can be achieved. Furthermore, the moving speed of the optical system is controlled by the control device 205 based on the output of the second CPU 202 so as to be variable in accordance with the set numerical value, but the speed control of the DC motor that is the drive source is conventional. Many methods have been proposed or provided since then, and will not be discussed in detail here. In FIG. 5, the panel portion 70a adjacent to the selection key 98 is 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, etc. It would be convenient to use the arbitrarily set numerical magnification, for example, to write characters such as "Paper → A4". The panel portion 70a may have a concave or convex level difference from other panel portions as necessary. Konoki Memory Q
It is sufficient to distinguish and display with lamps corresponding to 5 to Q8. Copying Operation FIG. 15 is a flowchart showing an example of controlling the copying operation of the copying machine. Regarding this, the first
This will be briefly explained with reference to the time chart shown in FIG. In block 10, when the print switch is turned on, the main motor M1 and the developing motor M
2. Charger 12 for charging, charger 1 for transfer
At the same time, the copy flag indicating that copying is in progress is set to "1", control timers T-A and T-B are started, and the paper feed roller on the selected side is activated. Turn on the clutch. In block 11, it is determined that the timer TA has expired and the paper feed clutch is turned off. In block 12, it is determined that the timer T-B has ended, 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 CL3 is turned on and the timer T is turned on.
-C is set. The copy sheet is conveyed by the timing roller 35 in synchronization with the image on the photoreceptor drum 10. In block 14, it is determined that the timer T-C has ended, and the charging, scan motor, and timing roller clutch are turned off. Note that the timer T-C is variable depending on the size of the copy sheet used, etc. You can also set it. 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 and the transfer charger 1 are turned on.
4 are turned off, the copy flag is set to "0", and the timer T-D is set. 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 explained in the above flow chart and time chart are executed within the time specified by the internal timer.
This is a digital timer programmed to count up to "1" in one routine of the processing of the MC 50, and the time-up time is stored as numerical data. Effects of the Invention As described above, according to the present invention, after selecting a desired storage area using the operation keys, the operation keys for selecting the storage area are pressed while inputting numerical values for setting the copy magnification. Even if the operation is performed, the selected state of the storage area does not change, so while inputting the copy magnification to a specific storage area, the magnification data stored in other storage areas may be changed or deleted. This accident can be prevented.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an example of a copying machine to which the present invention is applied, Fig. 2 is a diagram showing the positional relationship of lenses in the copying machine shown in Fig. 1, and Fig. 3 is a diagram showing mirror movement in the copying machine shown in Fig. 1. A perspective view of the mechanism; FIG. 4 is a perspective view of the mirror moving mechanism in the copying machine of FIG. 1;
The figure is a plan view showing the operation panel of the copying machine in Figure 1, and Figure 6.
The figure is a block diagram showing one embodiment of this invention.
6 is an output circuit diagram used in the embodiment of FIG. 6, 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, and FIG. A flowchart showing an example of how to display the set magnification, Figure 11 is the first
12 is a flowchart showing details of the setting program in the first setting mode and the second setting mode, and FIG. 13 is the subroutine of FIG. 12. Flowchart of details, No. 14
15 is a flowchart showing a reading program at 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 unit, 71...Print switch,
80~89...Numeric keypad, 98,99,100~
103...Selection key, 201...CPU1, 20
3...RAM, Q5, Q6, Q7, Q8...Memory.

Claims (1)

[Scope of Claims] 1. A memory having a plurality of storage areas and storing copy magnification data in each storage area, an operation key for selecting one storage area from the plurality of storage areas, and the above-mentioned operation. a selection control means for selecting one of the plurality of storage areas in response to a key operation; a mode setting means for setting a magnification setting mode for setting the copy magnification data; a mode canceling means for canceling the magnification setting mode set by the setting means; a numerical input means for inputting numerical data after the magnification setting mode is set by the mode setting means; and a numerical input means for inputting numerical data. memory control means for storing numerical data inputted by the means as a copy magnification in a storage area selected by the selection control means; and the magnification setting mode is set to the mode from the time when numerical input by the numerical input means starts. Until the release is released by the release means, the operation of changing the storage area already selected by the selection control means to another storage area in the memory is prohibited, regardless of the operation of the operation keys. A copying magnification setting device comprising: prohibition means.