JPS6378165A - Electronic copying machine - Google Patents

Abstract

PURPOSE:To control the length of scanning performed by an optical system at a required length, and to perform appropriate side lacing, by selecting a paper size stored in advance, when a sheet of copying paper is supplied by manual paper supplying. CONSTITUTION:When a paper selection key 92 is turned on while no copying is performed, and at the time of deciding the edge of the turning on of the key, selection between an upper paper supplying part 20 and a lower paper supplying part 22 is inversed if both displaying lamps 115 and 116 are turned off, and also, a paper size code detected by sensors 51-58 is inputted. If either the displaying lamp 115 or 116 is turned on, progressive selection among three parties including the paper supplying from a manual paper supplying table 41, is performed, and respective paper supplying code is inputted, and also, when the manual paper supplying table 41 is selected, a manual displaying part 92e is turned on. Next, a paper size code conversion routine is executed, and a size displaying part corresponding to the paper size being selected out of the displaying parts 92a-92d is turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronic copying machine provided with a manual paper feed port for manually feeding non-standard copy paper.

(Prior art and its problems) Conventionally, in order to feed copy paper other than standard-sized copy paper that is automatically fed from a paper cassette, and to perform double-sided copying even if it is a standard-sized copy paper, copy paper has been manually fed. The electronic copying machine is equipped with a manual paper feed port for feeding paper. However, in such conventional electronic copying machines, manual paper feeding is an exceptional paper feeding method, and only manual paper feeding is possible.

In other words, since the paper size of manually fed copy paper is unspecified, it is necessary to control the scanning length of an optical scanner and side eraser, as when copy paper is automatically fed from a paper cassette. Because of this, the entire length of the document glass is scanned, and the phenomenon is performed across the maximum image width, which takes a long time to copy even for small-sized copy paper. Furthermore, the current situation is that toner is wasted.

Furthermore, even if a copying machine is equipped with an automatic document feeder, if it uses manual paper feeding, the copying magnification will be automatically determined and the copy paper to be fed manually will be automatically selected for the same reasons as mentioned above. The problem is that it is not possible to do so.

(Technical Means for Solving the Problems) In view of the above-mentioned circumstances, the present invention enables the same copying operation as when automatically feeding paper using a paper feed cassette even when manually feeding paper. The purpose of the present invention is to provide an electronic copying machine that can prevent an increase in copying time and toner consumption due to unnecessary scanning and unnecessary development. and a storage means for storing the paper size input by the input means, and the paper size stored by the storage means is read out and the copying operation is performed. can be controlled.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front sectional view showing the general structure of a copying machine A. FIG. In the figure, a photoreceptor drum l that can be driven to rotate in a counterclockwise direction is arranged approximately in the center of the copying machine main body, and surrounding it are a main eraser lamp 2, a sub charger 3, a sub eraser lamp 4, main charger 5,
Developing device 6, transfer charger 7, copy paper separation charger 8, blade type cleaning device i! 9 are arranged. The photoreceptor drum 1 is provided with a photoreceptor layer on its surface, and this photoreceptor is sensitized and charged by passing through the eraser lamps 2 and 4 and the chargers 3 and 5.
Image exposure is received from the optical system 10.

The optical system 10 is installed below the original glass 16 so as to be able to scan the original image, and includes a light source 11a, a movable mirror 11.
12, 13, a lens 14, and a mirror 15. The light filla and the movable mirror 11 operate at the circumferential speed V of the photosensitive drum 1 (constant regardless of the magnification or variable magnification).
The movable mirror 12.13 is driven by the scan motor M3 so as to move to the left at a speed of V/n (where n is the copying magnification), and the movable mirror 12.13 moves 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 is well known and will not be described in detail.

On the other hand, on the left side of the copying machine main body, a top picture paper section 20 and a bottom picture paper section 22 are installed, and the conveyance path of the copy paper is formed by a pair of rollers 24.
5, a pair of timing rollers 26, a conveyor belt 27, a fixing device 28, and a pair of discharge rollers 29.

Above the overprint paper section 20, a manual feed tray 41 for manually feeding copy paper is provided in the copier main body so that it can be opened and closed, and a sensor is installed to detect the copy paper inserted from here. S El, S E2, roller pair 4
2. An operation panel 43 for manual copying and a sensor 59 for detecting opening/closing of the manual paper feed table 41 are provided. The overprint paper section 20 and the underprint paper section 22 are provided with sensors 51 to 54 and sensors 55 to 5, respectively, for detecting the size of copy paper fed therefrom. 44 is an eraser, and this eraser 44 serves as a side eraser and an inter-image eraser.

An automatic document feeder 300 (hereinafter referred to as ADF) is provided on the upper side of the copying machine main body. The ADF 300 includes a document tray 303, a sensor 311 for detecting the presence or absence of a document on the document tray 303, and a motor 3 for transporting the document.
02. Sensor 310 that detects whether or not a document has been brought in
, a transport belt 304 for transporting the original to a predetermined position on the original glass 16, and a motor 301 for rotating the transport belt 304.
An operation panel 305 for operating 0 is provided.

FIG. 2 shows the arrangement of the operation keys on the operation panel of the copying machine A. The operation panel 70 includes a print key (71.7 segments) for starting the copying operation.
Numerical display device 72 configured with D and capable of displaying 4-digit numerical values
, respectively 1.2. ...Numeric keys 80 to 89 corresponding to the numerical value of 9°0, interrupt key 90 to specify interrupt copying
, a clear/stop key 91, a paper selection key 92 for specifying copy paper in paper feed cassettes installed in multiple stages by size, or selecting copy paper to be manually fed from the manual paper feed section 41, selection. size display sections 923 to 92d for displaying the size of the copy paper that has been selected, a manual feed display section 92e for displaying that the copy paper to be manually fed has been selected, and an up and down display section for changing and specifying the copy image density step by step. Down keys 93 and 94 and copy magnification setting keys 100 to 103 are arranged. This magnification setting key 100. For 101, 102, and 103, copy magnifications corresponding to the respective copy magnifications are stored in advance in a storage device to be described later, and by operating the keys 100 to 103, a copying operation is executed at the stored copy magnifications.

The X key 95 is an entry key used to input the size of copy paper fed manually, and the 0 image registration select key 96, which is keyed in between inputting numerical values for the vertical dimension and numerical values for the horizontal dimension, Copying is performed with the edge of the original aligned with the edge IPE of the original glass 16, and there is a normal mode in which copies are made so that the edges of the original and copy paper are aligned with each other, and if is set on the original glass 16. central position of PC
This is an input key for selecting either the center registration mode, in which copying is performed with the copy paper set in the center position, and the original is copied at the center of the copy paper in the feeding direction.

FIG. 3 shows an operation panel 43 for manual copying.

111 is a size manual switch for manually registering the size of copy paper; 114 is an indicator light indicating that registration is in progress; 1
12.113 is a selection switch for selecting the manual feed copy paper; 115.116 is an indicator light indicating that each registered manual feed copy paper size has been selected;
17 and 118 are spaces for writing and memorizing the registered size.

FIG. 4 shows the control circuit of copying machine A, and 201 is the first C
PU, 202 is No. ? CPU, 203 is battery bank amplified RAM, 205 is DC motor M3 for document scanning.
206 is a stepping motor M4 for variable magnification.
207 to 213 are input/output ports consisting of programmable input/output expansion ICs, 214 to 216 are decoders, 217 is an LED matrix, and 218 is an FID.
(fluorescent display tube), 219 is a communication line for connecting with other CPUs. In addition, 220 is a battery-backed RAM for storing the size of manually fed copy paper.
It is.

FIG. 5 shows the operation panel 305 of the ADF 300. The mode select switch 320 is for selecting one of automatic paper select, automatic magnification select, and manual modes, and is 320a to 320c.
is an indicator light indicating that each mode is selected.

Figure 6 shows the control circuit of the ADF300.
The c p U 221 is connected to the first CPU U 2 O 5 by the communication line 219 described above.

Figure 7 1a) ~+c+ and Figure 8 (al ~IcI
2A and 2B are diagrams for explaining copying operations in the normal mode and the center registration mode selected by the image registration select key 96 described above.

FIG. 7 (al shows the state in which the edge of the original IgID is aligned with the edge position PR of the original glass 16 in the normal mode, and FIG. 7 (bl shows how the original and copy paper PP are set) Fig. 7 shows the state in which the image @DQ is copied with the ends of the paper coinciding with each other, and Fig. 7 tel shows the control state of the timing roller 26 for this purpose. hits the stopped timing roller 26 and is in a standby state, and the optical system 10
The distance 11 from the leading edge of the image DP formed and developed on the photosensitive drum 1 by the scanning operation to the transfer position PT where the transfer charger 7 is provided is % of the distance from the leading edge of the copy paper PP to the transfer position WPT. The timing roller 26 is activated when the tamping becomes equal to IIL. As a result, the leading edge of the image DP reaches the transfer position PT due to the rotation of the photosensitive drum 1, and at the same time, the copy paper P
The leading edge of P also reaches the transfer position FT, and is copied in the state shown in FIG. 7 (bl).

On the other hand, FIG. 8 fa+ shows a state in which the center of the original paper is aligned with the central part ipc of the original glass 16 in the center registration mode, and FIG. FIG. 8 (C1 shows the control state of the timing roller 26 for this purpose) shows a state in which the image DQ is copied with the center portions coincident with each other.

8th rI! In J(C), the copy paper PP is sent forward by the timing roller 26 by a half length R/2 of the paper length R, which is the length in the feeding direction, and then stopped.
In this standby state, the image D formed and developed on the photosensitive drum 1 by the scanning operation of the optical system IO
The distance 12 from the center of P to the transfer position PT is
The timing roller 26 is activated at a timing equal to the distance from the tip of P to the transfer position PT. As a result, the center of the image DP and the center of the copy paper PP are aligned and copied. Photosensitive drum 1
The center position of the image DP formed on the original glass 1
This is the part that is exposed when the optical system scans the central part pc in the feeding direction of No. 6, and such a position can be detected within the control circuit. The paper length R of copy paper PP is
The paper length input and stored in the RAM 220 is loaded according to the flowchart shown in FIG. 17 in the case of automatic paper feeding and according to the flowchart shown in FIG. 12 in the case of manual paper feeding. It is.

In addition, as shown in FIG. 7 fat and FIG.
A display mark 16C is provided at the center of the scale 16b to indicate that the central portion of the document glass 16 is WPC. The document tray is positioned at a predetermined position by the ADF 300 depending on whether the mode is normal mode or the center registration mode.
or using the above-mentioned display mark 16c as a guide,
The cent is manually placed at the end position PE or the center position PC depending on each mode.

9 to 21 show the procedure of processing executed in the first CP 0201.

FIG. 9 schematically shows the overall configuration of the processing of the first CPU U2O5. When the program starts, first,
In step S1, a subroutine for initializing the CPU 2O5 and the copying machine A is executed.

In step S2, the internal timer of the first CPU U2O5 is set, and then from step S3 to step S1
Call and execute each subroutine shown in 2 in sequence,
Next, in step S13, wait for the end of the internal timer/end the routine. Although not shown, the first CP t
J201 calls other C routines after calling all issue blue routines.
Performs data communication with PU2O5 and 221.

FIG. 1O shows a ten-key person's car routine.

When the indicator light 114 indicating that the size of manually fed copy paper is being registered is off, that is, in the normal state, the input value from the numeric keypad is input as the number of copies, and when it is on, the number of copies is input by hand. input as the size of

FIG. 11 shows the input routine for the X key 95.
5, the value displayed on the numerical display device 72 is stored in the A register in the RAM 220, and the horizontal flag indicating that the horizontal size of the manual copy paper is being input is set to 1''.

FIG. 12 shows the size input routine. Step 321
determines the state of the sensor 59 that detects the opening/closing of the manual paper feed tray 41, and returns when the sensor 59 is on, that is, when the manual paper feed tray 41 is closed.0The manual paper feed tray 41 is open. If so, it is determined in step S22 whether the size input switch 111 is on-edge, and if it is on-edge, the on-off state of the indicator light 114 is reversed in steps 823 and 324 and S25. Step S2
6, the state of the indicator light 114 is judged, and if it is on, steps 528 to 332 or step 334 are performed by turning on either the select switch 112 or 113.
~33B is executed. In step 328, a correction routine is executed, and as shown in FIG. If the value is large, the value is forcibly corrected to "297" and displayed.

In step 329, select the value with the select switch 112tF.
The value of the A register is stored as the horizontal memory of I, and the value of the A register is also stored as the vertical memory in step S30. In step S31, the indicator light 114 is turned off, and in step S32
Cent the horizontal flag to “O”. Step 834~
At 338, the same content is executed for the select switch 113 side.

FIG. 14 shows the manual feed paper selection routine. If the sensor 59 is off and the manual paper feed tray 41 is open, and the indicator light 114 is off, the selection switch 112 or 113 is turned on. The indicator light 115 or indicator light 116 is turned on, and the vertical memory and horizontal memory on the select switch 112 side or the select switch 113 side are loaded into the working register to be used as control data.

FIG. 15 shows the manual feed door routine, which determines whether the manual paper feed tray 41 is open or closed based on the on-edge of the sensor 59, and when the paper feed tray 41 is closed, the indicator lights 114, 115, 1
Turn off 16.

FIG. 16 shows the paper selection routine. When the paper selection key 92 is turned on when copying is not in progress, the main paper feed section 20 and Reverse the selection with the sketch paper section 22, input the paper size code detected by the sensors 51 to 58, and turn on one of the indicator lights 1.
15. If 116 is on, select one of the three in addition to the paper feed from the manual paper feed tray 41, enter the paper feed code for each, and select the paper feed from the manual paper feed tray 41. 41 is selected, the manual feed display section 92
Turn on e.

Next, a paper size code conversion routine is executed, and the size display area 92a~ of the selected paper size is
Turn on 92d.

FIG. 17 shows the paper size conversion routine.

If the input paper size code is “3”, it is A5.
Since it is vertical, the paper length is ``210'' and the paper width is ``148.5''. Similarly, the paper length and paper width corresponding to the paper size code are stored in memory, and if there is no corresponding paper size code, the paper becomes empty.

FIG. 18 shows the automatic paper selection routine.

The document size data detected in the ADF 300 is sent from the JCP U 221 via the communication line 219, and the document size data is temporarily stored in the A register. The contents of the register are compared, and if they are equal, the size mismatch flag is set to 0'' and the main paper feed section 20 is selected.If the paper size of the main paper feed section 20 and the contents of the A register are different, the paper size is The manually fed paper from the unit 22 and the manual paper feed table 41 are similarly compared one after another, and if none of them apply, the size nonconformity flag @1'' is set.

FIG. 19 shows the automatic magnification selection routine, J.C.
Store the length and width of the original size data from P U221 in the A register or B register, respectively, and then divide the paper length and paper width of the copy paper by the contents of the A register or B register, respectively, to calculate the magnification. and store it in the A register or B register, respectively. Compare the two magnifications and select the smaller one as C.
Store in register. If the value of the C register is outside the range that allows copying machine A to change the magnification, the magnification incompatibility flag is set to “
If the magnification is within the range where magnification can be changed, the magnification incompatibility flag is set to “0” and the value of the C register is transmitted to the second CPU 202.

The 2011iU shows an eraser control routine.

The eraser 44 is turned off for the exposed area of the effective image portion on the document glass 16, and the eraser 44 is turned on between the effective images for inter-image erasing. Or display with manual feed ff115.1
If the paper width of the copy paper is known by turning on 16, the eraser 44 is turned on for site erasing based on the data of the paper width and copy magnification.

FIG. 21 shows a copying operation routine that controls the copying operation of copying machine A. First, if manual paper feeding is not selected, the AD
If F300 is not in use, set the copy start flag to “1”
and if the ADF 300 is in use and there is a document on the document tray 303, the ADF start signal for the ADF 300 is set to 11°. If the print key 71 is not on-edge, the ADF
If the ADF 300 is in use, the copy start flag is set to 11 when the original position signal from the ADF 300 becomes "1".
”.

Next, if manual paper feed is selected, a sensor SE detects copy paper inserted from the manual paper feed table 41.
2 on-edge performs the same processing as the above-described on-edge of print key 71.

In block 10 of the figure, the copy start flag is “
1", the main motor M1 that drives the photosensitive drum 1, the developing motor M2 that drives the developing device!! 6, charging 3.5 for charging and 7 for transfer are activated, and the copy start flag is activated. to '0'', start the control timers T-A and T-B, and turn the paper feed roller clutch of the paper feed section selected from the main paper feed section, sketch paper section, manual paper feed section, and paper feed section. Turn on.

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

In block 12, it is determined that the timer T-B has ended and the scan signal is turned on.

In block 13, the image registration select key 9
6 is on, the leading edge of the copy paper is on the timing roller 2.
6 is reached, and if it is, the timing roller 26 is rotated to send the copy paper forward by half the length of the paper.

In block 14, when the timing signal is output, processing is executed to turn on the clutch of the timing roller 26 and set the timer TC. The copy paper is moved to the photosensitive drum 1 by the timing roller 26.
It is transported in synchronization with the image above.

In block 15, it is determined that the timer TC has ended, and the charger, scan motor, and timing roller clutch are turned off.

In block 16, when the return signal is 11'', that is, when the return operation is started, it is determined whether or not copying for the multi-copy portion has been completed, and if not, the copy start flag is set to If completed, when the optical system returns to the home position with the return operation and the home position switch (not shown) is turned on, the developing motor and transfer charger are turned off and the timer T-D is set. is executed.

In block 17, it is determined that the timer TD has expired, and the main motor is turned off. Block 18 performs processing for various outputs.

Note that the timer T-A explained in the above flowchart
-T-D etc. are digital timers programmed to count/amplify each routine of processing executed within the time set by the internal timer, and the time-up time is stored as numerical data. There is.

FIG. 22 shows the registration processing routine by the second CP 0202. When the scan signal from the first CPU U2O5 is sent, the optical system 10 starts scanning. Next, the timing at which the irradiation of the original glass 16 starts. When the image registration key 96 is off and the normal tapping mode is selected, the currently exposed portion of the photoreceptor drum l is a distance 11 from the transfer position from that position.
Timer M is started based on the time required to rotate to the nearer position by (-L). When the image registration key 96 is on, that is, in the center registration mode, the time required for the optical system IO to reach the center position of the document glass 16, that is, the median value 1iiPc (in this embodiment, the distance is 210 m) (time to scan) and start timer M. Note that these times change depending on the copying magnification, so the timer M is set to a time corresponding to the copying magnification. When the timer M ends, a timing signal is sent to the first CPU 201. Note that the scan length is controlled to be an appropriate length depending on the vapor length of the copy paper and the copy magnification.

23 to 28 show the procedure of processing executed by the J CPU 221.

FIG. 23 schematically shows the overall structure of the processing of the J CPU 221. When the program starts, the J CPU
Initialization of CPU U221 etc. and ADF300
Perform initial settings to set the to the initial mode, then start the internal timer. Next, call and execute each subroutine in sequence, and when all subroutines have finished processing, wait for the internal timer to end, and then start the /routine. end. Data communication with the first CPU U2O5 is performed using the first
This is performed by an interrupt routine, regardless of the main routine, in response to an interrupt request from the CPU2O5.

A mode selection routine is shown in FIG. 24. By turning on the mode selection switch 320, a mode is sequentially selected among automatic paper selection mode, automatic magnification selection mode, and manual mode.

FIG. 25 shows the document size detection routine, in which the timer DU is activated on the edge of the sensor 310 that detects the passage of the document.
and stops the timer DU by off-edge. As a result, the time required for the document to pass is counted, and this time is multiplied by the general feeding speed of the document to obtain the length of the document, and this value is stored in the A register. Based on the value of this A register, the document size is determined.

FIG. 26 shows the document control routine. When the sensor 311 detects that there is a document in the document tray 303, an ADF start signal is sent from the first CP 0201 or the document feed flag is set to "
If it is 1, the motor 302 for carrying in the original and the sweater 301 for rotating the conveyance belt 304 are turned on. Next, the original feeding processing routine is executed to position the original at a predetermined position. When the scan of the selected bones is completed, the scan end flag is set to "1". When the scan end flag is "l", a document discharge processing routine is executed.

FIG. 27 shows the document feeding processing routine, the sensor 31
When 0 turns on, flag K is set to 1 and timer A1 is started. This timer A1 is for turning off the motor 302 at the timing when the original is brought in so that the original is fed seven sheets at a time.
4. Next, when the flag K is "1", the sensor 31
When 0 becomes an off-edge and the trailing edge of the document is detected, the flag K is set to "0" and a timer A2 is started.

The timer A2 stores the time until the rear edge of the document reaches the edge WPE of the document glass 16, or the time until the center of the document reaches the document glass, depending on either the normal mode or the center registration mode selected by the image registration select key 96. The time required to reach the 16 center position pc is set. When the timer AI ends, the motor 302 is turned off, and when the timer A2 ends, the motor 301 is turned off and a document position signal is sent to the first CPU 201.

FIG. 28 shows the document ejection processing routine for the document tray 3.
If there is still a document left in 03, the document feed flag is set to "1", and if there is no document left, the motor 301
rotate in the normal direction and start timer B. Timer B is set to the time during which the longest document is ejected, and when timer B ends, motor 301 is turned off.

In the above-described embodiment, the paper size of the copy paper for manual paper feeding can be stored in the RAM 220 using the numeric keys 80 to 89, the X key 95, and the size input pad 111.
The contents of 20 can be read out and loaded into the working register and used as control data for copying operations and other controls. Therefore, even when feeding copy paper by manual paper feeding, the select switch 112
．． 113, by selecting a paper size stored in advance, the length of the scan by the optical system 10 can be controlled to the required length, and appropriate site erasure can be performed. As a result, the time for scanning is minimized, thereby reducing the copying time, extending the life of the light source 11a, and preventing wasteful consumption of toner. 2
Since the paper size of 11114 is registered, it can be applied to most non-standard copy paper used in normal business. If it is desired to use copy paper of a paper size other than the registered paper size by manual paper feeding, it is also possible to register the paper size immediately beforehand.

In the embodiment described above, the image registration select key 9
6 allows you to switch between normal mode and center registration mode.
You can select between two types of modes: conventional copying in which the edges of the original paper and the copy paper PP are aligned with each other, and copying in which the center of the original paper and the copy paper PP are aligned with each other. It can be performed. In particular, when copying in the center registration mode, as shown in block E3 of the flowchart in FIG. After the timer M, which is set so that the central position pc of the original glass 16 is copied onto the center of the copy paper PP, expires, the timing roller 26 rotates and copies the copy paper PP. It is controlled so that it is sent out in droves. Therefore, regardless of the length of the copy paper PP or the copying magnification, the document can be placed at a fixed central position on the document glass! It is easy to control the ADF300 because you only need to insert it into the PC.Also, even when you manually insert the original without using the ADF300, it is very easy to set the original, and it takes time to select the setting position. Furthermore, even if the copy paper PP is very long or the magnification is large, by setting the original in the central position PC, the copy paper PP can be set without any problems. It can be copied in the center of

Furthermore, in the above-described embodiment, since the paper size of the copy paper that is manually fed can be registered, it is possible to perform the same control as automatic paper feeding using the overprint paper section 20 or the underprint paper section 22. It has become. Therefore, even with non-standard-sized copy paper, such as wrapping paper, copying can be performed in the center registration mode, and the original can be easily copied to the center of the copy paper.

Furthermore, in the above-described embodiment, when an automatic document feeder is used, the copy magnification can be automatically determined even for manually fed copy paper, and the manually fed copy paper can be automatically selected. It is possible to perform the same control as automatic paper feeding using a paper feed cassette, such as the top picture paper section 20 or the bottom picture paper section 22.

(Effects of the Invention) According to the present invention, even when copy paper is fed manually, by selecting a paper size stored in advance, the length of the scan by the optical system can be adjusted to the required length. It is possible to control the site and perform appropriate site erasure. As a result, the time required for scanning is minimized, thereby reducing the copying time, extending the life of the light source, and preventing wasteful consumption of toner.

In addition, even when using an automatic document feeder, the copy magnification for manually fed copy paper can be automatically determined and the manually fed copy paper can be automatically selected. Control similar to automatic paper feeding can be performed.

Furthermore, the center registration mode described in the embodiment makes it easy to copy an original in the center of copy paper by manual feeding. In this case, the paper length of the copy paper is greater than the length of the original glass. You can copy it even if it exists.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show embodiments of the present invention, and FIG. 1 is a front cross-sectional view showing an example of the mechanical structure of a copying machine, and FIG. 2 is a plan view showing the structure of an operation panel of the copying machine. Figure 3 is a plan view showing the configuration of the manual copying operation panel of the copying machine, Figure 4 is a block diagram showing the control circuit of the copying machine, and Figure 5 is a diagram of the operation panel of the automatic document feeder. FIG. 6 is a block diagram showing the control circuit of the apparatus, FIG. 7 fal to fcl are diagrams for explaining the copying operation in the normal mode, and FIG.
) to (C1 is a diagram for explaining the copying operation in the center registration mode, and FIGS. 9 to 21TI!J are the 1st C
Flowchart showing the processing procedure executed by the PU, 2nd
FIG. 2 is a flowchart showing the procedure of the registration processing routine executed by the second CPU, and FIGS. 23 to 28 are flowcharts showing the procedure of the registration processing routine executed by the JCPU. A... Copy 1M (electronic copy machine), PP... Copy paper,
80-89...Numeric keypad (input hand If), 95.
...X key (input means), 111...Size person inch, 112.113...Select switch, 22
0...RAM (storage means), 300...Automatic document feeder. Applicant: Minolta Camera Co., Ltd. Figure 7 Q Figure 8 OD Figure 8 Figure 13 Figure 12 Figure 14 Figure 15 Old area Figure 20 Figure 22 Figure 23

Claims (1)

[Claims] 1. In an electronic copying machine equipped with a manual paper feed port, an input means for inputting the paper size of copy paper to be manually fed, and the paper size input by the input means. 1. An electronic copying machine comprising: a storage means for storing a paper size, and is controlled so that a copying operation can be performed by reading out the paper size stored by the storage means. 2. The electronic copying machine is equipped with an automatic document feeder for automatically setting the document on the document glass;
An electronic copy according to claim 1, wherein the copying magnification is automatically determined based on the document size detected by the automatic document feeder and the paper size stored in the storage means. Machine. 3. The electronic copying machine is equipped with an automatic document feeder for automatically setting the document on the document glass,
Claim 1, wherein control is performed so that the most appropriate copy paper is selected in accordance with the document size detected by the automatic document feeder, including the paper size stored in the storage means. electronic copy machine.