JPS6211843A - Electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To set easily an anamorphic rate by varying the anamorphic rate by operating a means for variable power increasing/decreasing use, at the time of an anamorphic variable power copying mode which executes a variable power by varying the scan speed of an original in accordance with the anamorphic rate. CONSTITUTION:The start key 50 of a console panel is pushed, and an anamorphic variable power copying mode is selected by a key 75. The width direction of a copy is held as the same, only the speed of a scanner is varied, and a control is executed so that an image is reduced or lengthened in the length direction, by which an anamorphic variable power is executed. When a magnification-up key 71 or a magnification-down key 72 is turned on in a state that the key 75 remains pushed, the anamorphic rate is brought to up or down by a step of every one %. In this way, a special means for setting the anamorphic rate is not required, and the setting operation is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrophotographic copying machine having an anamorphic magnification function.

(Prior Art) Anamorphic magnification is to convert a document into images with different magnifications in both the vertical and horizontal directions. This feature allows you to stretch or compress images in one direction.

Electrophotographic copying machines equipped with an analog magnification function are already in use as actual machines. This copying machine is equipped with a polarizing lens, and can perform polarizing magnification of a document at a fixed analog ratio (ratio of vertical and horizontal magnifications).

Regarding anamorphic polarization that does not use a special lens,
Many applications have been filed (JP-A-56-46267, JP-A-58-54358, etc.).

(Problems to be Solved by the Invention) When an electrophotographic copying machine is provided with an analog magnification function, it is necessary to change the vertical and horizontal magnifications instead of keeping them constant as in the example in -1-. You will be free to create.

Also, in this case, even if the copying machine's functions are increased, it is desirable that the functions are simple to operate.

An object of the present invention is to provide an electrophotographic copying machine that has a wide analog magnification setting range and is easy to operate.

(Rounding Means for Solving Problems) The electrophotographic copying machine according to the present invention includes an increase/decrease manual means that can specify the direction of increase/decrease for functions other than the analog magnification bias copy mode, and an analog magnification bias copy mode. An anamo magnification copy mode specifying means for specifying an anamo biased copy mode in an electrophotographic copying machine that copies at a set anamo rate, and a document scanning speed in an optical system corresponding to the set anamo rate. If an increase/decrease operation is performed on the increase/decrease manual means when the Anamo bias copy mode is specified by the Anamo biasing means for changing and the Anamo multiplier copy mode specifying means, the Anamo ratio is changed to a predetermined value in response to this operation. Increase/decrease only the value 1. The invention is characterized in that it is equipped with an anamorphic bias control means for setting the anamorphic magnification.

(Function) In the analog magnification setting, which performs biased magnification by changing the scanning speed of the original according to the set analog magnification,
It is possible to specify the direction of increase/decrease used for functions other than the anamorphic biased copy mode.The anamorphic ratio can be increased or decreased by a predetermined value, for example, 1% by using the increase/decrease input means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments will be described in the following order.

a. Structure of the copying machine, operation panel C1 Internal structure of the copying machine d. Special copy modes (binding copy mode, Anamo copy mode 1 and book copy mode) e. Operation of the copy machine body e-1, Main routine e-20 manual feed routine e-3, cassette insertion process e-4 copy operation e-5, automatic paper selection e-6, automatic magnification selection e-7, key processing e-7-1 magnification upgie e-7-21 magnification Down key e-7-3, interrupt key e-7-4, binding copy mode select key e-7-5, Anamo copy mode select key e-7-6, cassette select key e-7-7,
Book copy mode select key e -7-8 Automatic exposure key e -7-9, Binding margin introduction, Binding margin creation, Binding margin cancellation e-7-10, Anamo introduction and Anamo cancellation e-7-11 Automatic reduction magnification calculation e-8 display processing e-8-1, one type of paper display e-8-2, door display e-8-'3. Color toner display e-8-4 Book warning display f, optical system operation g Automatic document feeder (ADF) operation Section 7 (Figure 17), e-7-1 (Figure 18), e-7
Section -2 (Figure 19), Section e-7-5 (Figure 22), and Section e-7-1n (Figure 30).

Fig. 31).

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic sectional view of an electrophotographic copying machine according to the present invention. This electrophotographic copying machine consists of a copying machine main body 1, a stand 2 on which the copying machine main body is placed, and an optional automatic copying machine.
Automatic document feeder (ADF) 30.

01 and a three-stage paper feeding unit 1000.

The copying mechanism of the copying machine main body 1 is similar to that of a conventional electrophotographic copying machine. A photoreceptor drum 2 that can be rotated in a counterclockwise direction is arranged in the center of the copying machine main body 1.A main eraser lamp 3, a sub charger 4, and a sub eraser are arranged around the photoreceptor drum 2. Lamp 5, main charger 6, developing device 7, transfer charger 8, transfer paper separation charger 9, blade type cleaner device fi
llO, etc. are sequentially arranged. The photoreceptor drum 2 is a drum with a photoreceptor (for example, selenium) provided on its surface, and -
For each copy, it is irradiated with light by an eraser lamp 3.5, charged by passing through chargers 4 and 6, and then subjected to image exposure from an optical system to be described next. Motor M
1 drives the photosensitive drum 2 and the like. Note that the developing device 7
A color toner detection sensor 411 is attached above.

The optical system is installed below the document platen glass II so that the document image can be scanned. The optical system includes a light source 12, a first mirror 13, a second mirror 14, a third mirror 15, and a projection lens 1.
6 and a fourth mirror 17. The original image is line 1
8, each mirror 13, 14, 15 . '17
The photosensitive drum 2 is reached through the . Fixed position switch SW
500 is provided to detect whether the optical system is at a predetermined position during scanning. An automatic exposure sensor 19 is attached above the projection lens 16, and the intensity of the reflected light from the mirror 15 is measured to detect the original density.

The magnification is set by moving the projection lens 16 in the optical axis direction using a motor M4. Note that the motor M3 drives the optical system. When the copying magnification is n, the light source 12 and the first mirror 13
, the motor M3 rotates (
move to the left at a speed of v/n), and at the same time move the second mirror]
4 and the third mirror 8=-15 move to the left at a speed of (v/2n).

Along with this movement, the image is exposed from the fourth mirror 17 onto the photosensitive drum 2 in a slit shape.

On the left side of the copying machine main body 1, an automatic paper feed cassette 20 is installed at the main paper feed port, a three-stage paper feed unit 1000 is installed at the lower paper feed port, and a manual paper feed section 2I is installed at the top. The three-stage paper feed unit toooo is installed as an option instead of the second automatic paper feed cassette that is set in the lower paper feed slot as standard equipment. Copy paper in the automatic paper feed cassette 20 or the manual paper feed section 21 is selectively fed into the copying machine main body l by respective paper feed rollers 22 and 23,
It passes through each transport a-ra pair 24 and 25 and is transported to the timing roller 26 which is in a pressed state, where it is temporarily on standby.

Note that the paper feed roller 30 is used for feeding paper at the lower paper feed port.

During transfer, the copy paper fed by the timing roller 26 comes into close contact with the photoreceptor drum 2 in the transfer section, and the toner image is transferred by the corona discharge of the transfer charger 8, and then the toner image is transferred by the corona discharge of the separation charger 9 and the transfer. The paper is separated from the photosensitive drum 2 by its own stiffness. Subsequently, the copy paper is conveyed to the right as the belt 27 rotates clockwise while being sucked onto a conveyor belt 27 equipped with an air suction means (not shown). Next, the toner image is melted and fixed by passing through a fixing device 28. Then, it passes through a pair of discharge rollers 29 and is discharged to a tray 30 outside the copying machine main body 1 or a collating machine (not shown).

Paper size detection switch 401~404.405~
Reference numeral 408 denotes microswitches arranged in parallel to the two lower paper feed ports, which detect the size of the copy paper in the cassette and whether it is installed vertically or horizontally with respect to the paper feeding direction. The sizes that can be copied, that is, the sizes of copy paper that can be set in each paper feed section are, for example, [A3], [A4], [
A5], [B4].

[B11], and vertical and horizontal can be selected for [A4] and [B11. In addition, switches 401 to 404.4
05 to 408 also detect the attachment and detachment of the cassette, which means that the presence or absence of copy paper at the paper feed port is indirectly detected. Then, the size and setting direction of the copy paper are detected by a 4-bit code corresponding to the on/off combination of switches 401 to 404 and 405 to 408, and is detected by the RAM 213 of the CPU of the control circuit (see Fig. 4). is stored in

An example of a code table for switches 401 to 404 is shown in the table below. In this table, "0" indicates the switch is on, and "1" indicates the switch is off. If all the switches are off, it means that the cassette 20 is not installed in the paper feed unit, and copy paper is not being loaded. The absence of this will be detected.

Among the sensors attached to the copying machine main body l, a manual feed door detection switch 410 detects whether the manual feed door 21a constituting the manual paper feed section 21 is closed. The manual feed door 2+a is closed when not in use. sensor S
EI and SE2 are paper detection switches of the manual paper feed section 21.

The display mode changeover switch 412 includes Sl, which will be explained later.
S2. It is used to switch between two display modes: S3 display+21. The front door detection switch 413 is a switch that detects opening/closing of the front 1ζa of the copying machine main body 1. Automatic exposure center setting switches 414 and 415 are used to set the center of the exposure level during automatic exposure.

Below margin = 12 - 1000 front three-tier paper feed units are movably supported on rails 1040, and the three paper feed ports at the top, middle, and bottom each have a cassette! -1010, 1020° and 1030 can be set. Docking detection switch 100
2 detects whether the three-stage paper feeding unit)+000 is connected to the copying machine main body l. The motor M5 drives the paper feeding system of the three-stage paper feeding unit 1000. Paper size detection switches 1011 shown together
~1014.1021~1024.1031~1034
detect the paper size of the upper, middle, and lower paper feed slots, respectively, and the paper single type cent switches 1015 and 1016.1025 and 1026.1035 and 1036 detect the paper size of the upper, middle, and lower paper feed ports, respectively This is a switch to set the type of paper in the mouth. Paper feed clutch 1017.10
27.1037 connects the transport rollers 1018, 1028, and 1038 corresponding to the selected cassette to the drive system when any one of the corresponding cassettes is selected, and copies paper of the specified size or size. Supplied to the L side of the machine body.

In the ADF 300, a sensor 310 detects whether a document is fed, and a sensor 311 detects whether a document is present in the document tray 304.

A motor 301 rotates a document conveyance belt 305 of the ADF, and a motor 302 feeds a document from a document tray 304.

(b) Operation panel The operation panel is shown in FIGS. 2(a) and (b). The operation panel is provided with keys indicated by the following reference numbers.

50: Print button to start copying. 51゛~
60. Numeric keypad for setting the number of copies etc.

61: Interrupt key for interrupt copying. 62 - Functions as a stop key to stop multi-copying and a dual-purpose key to clear the set number. 63: Automatic exposure selection/cancellation key. 64. Exposure amount down key during manual exposure. 6
5: Exposure amount up key during manual exposure. 66: Paper feed selection key.

67 to 70: Copy magnification selection keys of 1-level, 2-level fixed reduction, and 1-level fixed enlargement. 71: Magnification up key that increases the copy magnification in steps. 72・Magnification down key to decrease the copy magnification in steps. 73・Total check key to call up the total number of copies per sheet display. 74・All reset key to initialize copy mode.

75, Anamo copy mode select key. 76: Calculation mode select key. 77: Zoom magnification input key.

78-81; Zoom magnification select keys for selecting a total of four zoom magnifications selectively set in advance. 82: Binding margin copy mode select key. 83: Book copy mode select key O The display section +00 using a fluorescent display tube performs the display indicated by the following reference numerals, as clearly shown in FIG.

+01: 3-digit display segment for displaying number of copies, etc. +02 Display showing that the numerical value on display 101 indicates the Anamo ratio percentage. l03: Display +01
A display indicating that the number above indicates the amount of remaining binding in mm. 104: Serviceman call emoji. 105: Jam call emoji. 106: Pictogram used for door opening and 3-tier paper feed unit set failure. 107: Weight display during temperature control, lens movement, etc. 108: Interrupt copying in progress display. 109
Nibtsuk copy warning. 110: Anamo copy warning issued when the analog magnification (ratio of vertical and horizontal magnification) is set beyond the setting range. 111: Paper empty display.

112: Manual copy display. 113; Exposure mode (automatic exposure or manual) displayed. 114: i Light amount stabilizer display. 115: Display of waste toner full. 116: Toner empty display. 117: Color toner display. 118
: Copy magnification display. 119: Calculation mode display. 120:
Paper size display. 121: Display one type of paper.

As shown in FIG. 2(a), the operation panel further includes:
It has indicator LEDs indicated by the reference numbers below.

123: Monitor display. 124: External paper feed jam display L
ED,, I25: Paper feeding error display LED Do +26 Bi-separation/unloading error display LED Do +27: Sorter jam display LED Do 128: ADF jam display LED013
0: Upper paper feed selection display LED 131; Lower paper feed selection display LED 0132-135: Magnification key selection display LED 0136: Anamo copy mode selection display L
EDo +37: Calculation mode selection display LED013
8.Zoom input selection display LED Do 139~
142; Zoom magnification key selection display LED0143:
Binding copy mode selection display LED0144: Binding margin creation and automatic reduction mode selection display I.

EDo 145 print copy mode select display
Do (c) Structure of the control section of the copying machine Fig. 4 shows the CPU (
20+) input/output configuration is shown. IC202~205,2
07 to 209 are ICs for input/output expansion. IC20
2 to 205 are used as input ICs, and CP
It is connected to the UI by a data line. Also, IC202
205 are respectively controlled by the CPU 1 via the decoder 206. Various keys, displays, etc. shown in the figure are connected to the input terminal. IC207~2
09 is used as an output IC, and a control board is connected to the CPU 1 via a decoder 211. In addition to the various components shown in the figure, a fluorescent display tube +00 and an LED matrix 210 (display LEDs 120-125, 130-145) are connected to the output terminal, and are controlled by the CPU via a decoder 212, respectively. The RAM 213 is connected to the CPUI and is backed up by a battery. The bus 214 is connected to other CPUs (CPU2゜CPU3
．． This is a communication line for connecting with the CPU 4). CPU
I is 9 for the light control circuit 215 during manual exposure.
The value selected from among the exposure values of the step, or, in the case of automatic exposure, the value that becomes the center of automatic exposure, is transmitted as data.

FIG. 5 shows the input/output configuration of the CPU 2 that controls the optical system. The input/output board of CP LJ 2 is the scan motor control circuit 2 that controls the scan motor M3.
+6 and a zoom lens control circuit 217 that controls a motor M4 that moves the projection lens 16. Further, signals are inputted from a localization value switch 500 of the optical system and a switch 501 that generates a timing signal for rotating the timing roller 26 at the same magnification.

Furthermore, CPU2 communicates with CPU1 via bus 214.

FIG. 6 shows the input/output configuration of the CPU 3 that controls the ADF 300. The CPU 3 outputs signals to a conveyance belt motor 301 and a paper feed motor 302, and receives signals from a document feed sensor 310 and a document detection sensor 311. Further, the CPU 3 communicates with the CPU via the bus 214.
communicate with.

Figure 7 shows the CP that controls the three-stage paper feeding unit l-1000.
The input/output configuration of U4 is shown. The input/output port of CPU4 is
Upper, middle, and lower paper feed clutches +017°1027.1 (1
It is connected to 37. Similarly to the CPU 4, the CPU 4 is connected to various sensors shown in the figure (some of which are indicated by reference numbers) via input/output expansion ICs 221 and 222.

(d) Special copy mode (binding margin copy mode, analog copy mode, and book copy mode) <binding margin copy mode> In the binding margin copy mode (see Figure 8), the binding margin a of the specified width is It can be placed on the right side.

If there is no margin in the manuscript, providing a binding margin will make it easier to bind the copies.

In this embodiment, two modes are provided. In the first mode, the image is simply moved by the binding margin (see Figure 8).
See A). In this mode, if the protruding portion of the document d is not a margin, image loss occurs. In the second mode, in order to eliminate image defects, the reduction ratio (-(paper length - binding margin)/paper length) is calculated from the width of the copy paper (paper length) and the binding margin, and the Determine the magnification accordingly.

<Anamo copy mode> In the analog copy mode of this embodiment (see Fig. 9), the width direction of the copy (depending on the lens position) is kept the same, and only the speed of the scanner is changed, so that the image is created in the length direction. control to shorten or lengthen. Note that if the analog magnification (aspect ratio) is not within the range of 95% to 105%, the resolution will drop, so a warning will be displayed to the user +1.
Do 0.

In order to obtain stable copies at any analog polarization magnification, a special lens must be placed in the optical path.

<Book copy mode> In the book copy mode (see Figure 1O), when you open a book and make copies, both pages of the spread (side A and side B) are copied.
are sequentially copied by pressing the print button once.

(e) Operation of the copying machine main body The contents of the CPU program that controls the copying machine main body 1 will be outlined below.

<e-1> Main Routine FIG. 11 shows a schematic flowchart of the CPUI. C
When the PUI is reset and the program starts, the first step is to clear the RAM, set various registers, etc.
Initialization is performed to initialize the PUI and put the device into the initial mode (step St).

Next, an internal timer that is built into the CPUI and whose value is set at an unknown initial setting is started (step S2). Next, various processing parts manual feed door processing S
3. Cassette insertion processing S4, copy operation S5, automatic paper selection S6, automatic magnification selection S7, key processing S
8 and display processing S9 are performed sequentially. Next, CPU2,3
．． 4 (step 5tO).

When all subroutine processing is completed, wait for the end of the internal timer that was set first (step 5ll),
The routine ends and the process returns to step S2. The length of time of this l routine is used to count the various timers that appear in the subroutine. (The various timer values determine the end of the timer depending on how many times this one routine is repeated.) <e-2> Manual feed door processing routine FIG. 12 shows the manual feed door processing routine S3.

First, the switch 410 that detects the opening/closing of the manual feed door is turned OFF.
It is determined whether or not the F edge, that is, opening of the manual feed door has been detected (step 521). If not detected, the process immediately advances to step S31.

When detected, the manual feed display +12 lights up (Step 5)
22). Since the copy number display 101 switches to the function of an addition counter, the initial value "0" is displayed (step 523). Also, it is determined whether the LE6144 is ON, that is, in the "binding margin ten automatic reduction mode" (step 524), and if so, the mode is canceled and automatically switched to the "binding margin creation mode". To do this, call the binding margin introduction routine (see Figure 27) (step 525).
. This is a mode that automatically calculates the reduction rate from the length of the paper and the binding position, and the "binding margin automatic reduction mode" is a mode that automatically calculates the reduction rate from the length of the paper and the binding position. Since it is not known whether the binding is correct or not, the automatic reduction mode of the binding parishioners is automatically canceled. Next, it is determined whether the book copy mode selection display LED 45 is lit, that is, whether it is in the book copy mode or not (step 826). If so, the manual copy size is not known, so book scanning cannot be performed. Therefore, step 527 turns off LED I 45.
), the book side B signal and the book side A signal are set to 0 (step 828), and the book copy mode is automatically canceled.

Next, when the CAN edge of the switch 410 is detected, that is, the manual feed door is closed (step 531), the manual feed display +
Step 532) to turn off the light 12, display the number of copies 10
1 to 1 (step 533).

And then return.

<e-a> Cassette insertion process FIG. 13 shows the cassette insertion process routine S4. L.E.
When D144 is ON, that is, the "binding parishioner automatic reduction mode" is selected (step 541), if the upper cassette is selected (step 542), pull out the upper cassette (step 543), select the lower cassette: f9 If so, change the copy magnification to the original magnification (before automatic reduction) at each edge of the lower cassette pull-out g (step 544).
(Step 545) and display the position (Step 5)
46), and transmit it to the CPU 2 (step 547). This means that before the selected cassette was pulled out, the copying magnification was determined by the vapor length and binding plate of that cassette, or if the cassette was removed, the calculation became impossible, so it automatically returned to the original magnification. be.

Next, the upper cassette (step 551) or the lower cassette (
When a new paper is inserted in step 552), the paper feed port is automatically selected (steps S53 and 554).
, Automatically reduces the reduction magnification (paper length and remaining amount of binding force 1 etc.)
Step 555) Calculate the magnification (magnification that does not cause image loss), CP
Send to U2 (step 856) and display the @ rate (step 557).

The above description has been made regarding the case of the upper and lower two-tier cassettes as standard equipment. However, if the three-tier paper feeding unit 1000 as an obunyon is attached, each paper feeding cassette of the three-tier paper feeding unit 1000 will be ,1020
, 1030 may be subjected to the same processing.

<e-4> Copy operation Figure 14 (a) and (b) show the copy operation routine S5.
shows. When the LED I 45 is on, that is, in book copy mode (step 561), when there is an edge to insert a document into the ADF (step 562), the LED 145 is on.
is turned off (step 563), and the book copy mode is canceled (step 564). That is, ADF 30
If you use 0, the book scan control will have no meaning, so it will be canceled automatically.

Manual copy:" (step 571), press the print button 50 on the ON edge (step 572)
, if ADP is not used (step 573), the copy start flag is set to "BI" (step 574). If ADF is used (step 572), if there is a document in ADFI-ray (step 575), AI) is set to F2O3. Against ADF
(Star) signal is set to "1" (step 676). Also, when the print button 50 is not ON edge (step 572), if the ADF is used (step 578), the original position signal from the ADF 300 is "1".
” (step 579), the copy start flag is set to “
(step 580). Next, in the case of manual paper copying (step 571), the ON edge of the detection sensor SEI of the manual paper insertion slot is determined (step 577).
), the same processing as the ON edge of Print 5W50 (steps 973 to 876) is performed.

When the copy start flag becomes "1" in step S81, the main motor Ml and the developing motor are turned on, the charging charger, the transfer charger, etc. are turned on, the copy start flag is set to O, and T-A (timer A), T- B (timer B) is set (step 582). If the upper paper feed cassette is selected (step 584), the upper paper feed roller clutch is turned on (step 585). If the lower paper feed cassette is selected (step 886), the lower paper feed roller clutch is turned on (step 587). If manual feed is selected (step 888), the manual feed roller clutch is turned on (step 589).

In step S91, the T-A is judged and the T-A is judged.
When it is time for A to end, the upper and lower paper feed roller clutches and the manual feed roller clutch are turned off (step 592).

At Step 5 IOI, judge T-B.

When it is time for T-B to end, if it is in the binding margin creation mode (step S102), a timer E corresponding to the amount of paper is set in order to advance paper by the amount to be used for the binding margin.
is started (step 5103), the timing roller 26 is turned on (step 5104), and the scan signal is turned on (step S l 05). Then, when the timer E ends (step 5106), the timing roller 26 is stopped (step S107).

As shown in FIG. 14(b), in step 5ill, when the timing signal becomes "B", the timing roller clutch is turned on and T-C is set (step 5z).
2).

In step 5121, at the timing when TC ends, the charging, the speed control signal, and the timing roller clamp are turned off (step 5122).

In step 8131, the return signal of the optical system is “
In other words, when the return is started, it is determined whether the sensor SEI of the manual paper feed slot is on or not (Step SI 32). If it is on, the next manual paper has already been set in the multi manual paper feed mode. Therefore, I created a pseudo SEI ON edge (Step 5)
I33), executes the next manual copy mode. In addition, while paper is set in the L manual paper feed slot, manual copying is automatically performed.

Next, it is determined whether the copying for the multi-copy portion has been completed (Step 5I34), and if not, the copy start flag is set to "BI" (Step S]35).

Next, if book copy mode is selected, i.e.
When the LED 145 is on (step 5I36), it is determined whether the B side copy signal is "BI" (step 51).
41). If it is “1”, the 8th side copy is terminated in step 5I42), and the A side copy signal is set to “2” in step S
143), set the copy start flag to "S" (step S) 44), and perform side A copying. If it is "0", end side A copying (step 5I45), and switch to 8th side copy (step 5I46). , waits for the next print.Then, the scanner that once left its normal position returns.
When the fixed position sensor 5W500 is turned on (step 514
5) Stop the developing motor and transfer, and set the T-ri (step 9146).

At the timing when T-D ends (step S) 5
1), stop the main motor M1 (step 5I5
2). Then, the results of the processing up to now are output (step S155).

<e-5> Automatic paper selection FIG. 15 shows the automatic paper selection routine S6.

The original size data detected and transmitted by the CPU 3 that controls the ADF 300 is temporarily stored in the A register (step 5I61). Next, the binding margin creator automatic reduction mode selection is displayed and it is determined whether the BD I 44 is on (step 5I62). If it is off, the copy magnification is applied to the A register, that is, the magnification is applied to the vertical and horizontal lengths of the document stored in the A register (step 5I63). If it is off, this magnification is the copy magnification that happened to be calculated based on the paper length and binding margin that were selected at that time, so first the original copy magnification (
That is, the copy magnification is returned to - ((selected paper length - binding margin)/selected paper length)) (step 5164), and then multiplied by the A register (step 5165).

Next, the paper feed port is selected based on the value of the A register.

If the A register is equal to the paper size of the upper paper feed cassette (step S177), the size mismatch flag is set to "0" (step 5172), and the upper paper feed port is selected (step 5173). If the A register is equal to the paper size of the lower paper feed cassette (step 5I74)
), set the size mismatch flag to “0” Step 5I7
5) Select the lower paper feed port (step 9176).

Next, it is determined whether the three-stage paper feeding unit is included (step S
I77). Otherwise, the size incompatibility flag is set to "1" (step 9178) and the process returns. If so, if the A register is equal to the paper size of the upper stage of the three-stage paper feeding unit (step S179), the size mismatch flag is set to "0" (step S9180), and the upper stage of the three-stage paper feeding unit is selected (step S179). 8181
). If the A register is equal to the paper size of the middle stage of the three-stage paper feeding unit (step 5182), the size mismatch flag is set to "0" (step 8183), and the middle stage of the three-stage paper feeding unit is selected (step 5184). If the A register is equal to the paper size in the lower stage of the three-stage paper feeding unit (step 5185), the size mismatch flag is set to "0".
” (step 9186), select the lower stage of the three-tier paper feed unit (step 9187). If the paper size is not in the lower stage of the three-tier paper feed unit, step 5178
Proceed to.

<ee> Automatic magnification selection FIG. 16 shows the automatic magnification selection routine S7. C.P.
Step 51: Store the vertical length of the document size data detected and transmitted by U3 (ADF) in the A register.
91), and stores the width length in the B register (step S+92).

It is determined whether the binding margin creator automatic reduction mode display LED I 44 is on or off (step 5I93).

When it is off, store the length of the paper divided by the A register (original length) in the A register (step 9194).
. When the LED 144 is on, that is, in the "auto reduction mode", the magnification is calculated using the value obtained by subtracting the binding margin from the length of the paper as a simulated paper length, and the magnification is applied to the A register. Store (step 5I95, 9196
). This allows for automatic magnification calculation that takes binding allowance into consideration. Similarly, the horizontal magnification is calculated and stored in the B register (step 5197).

Next, the smaller magnification of the A and B registers is stored in the C register (steps 8201 to 203).

As described above, if the value of the C register obtained is outside the capabilities of the copying machine (outside the possible magnification range) (step 520
4) Set the magnification incompatibility flag to "B" (step S2)
05). If it is within the capacity, the magnification incompatibility flag is set to "0" (step S206), and the value of the C register is transmitted to the CPU 2 (step 5207).

According to the present invention, excessive reduction can be prevented when binding margin reduction copy mode and automatic magnification selection mode are combined.

<e-7> Key Processing FIG. 17 shows the key processing routine S8. In this routine, the magnification up key 71 (step 5211)
, magnification down key 72 (step 5212), interrupt key 61 (step 5213), binding margin copy mode select key 82 (step 5214), Anamo copy mode select key 75 (step 5215), paper feed slot select key 66 (step S2+6), book copy mode select key 83 (step 5217), and automatic exposure key 63 (step S2+8) are sequentially processed.

<e-7-1> Magnification up key FIG. 18 shows the magnification up key (71) processing routine. The magnification up key 71 is normally used to increase the copy magnification, but if you turn on the magnification up key 7I while turning on the anamorphic copy mode select key 75, it becomes an up key for each 1% of the anamorphic rate. , While turning on the binding margin copy mode select key 82, press the magnification up key 7.
When 1 is turned on, the up key is for every 5 mm of the binding margin.

Now, when the magnification up key 71 is turned ON (step S22+), the Anamo copy mode select key 75 is pressed.
is on, that is, when the magnification up key 71 is turned on while the Anamo copy mode select key 75 is turned on (step S2+2), 1! is stored in the Anamo rate memory! −(0
, o l) (Sterap S 228). As a result, if the Anamo rate memory exceeds 1.42 (step 52
29) and 1.42 (step 5230).

Further, when the binding margin copy mode select key 82 is on, that is, when the magnification up key 71 is turned on while the binding margin copy mode select key 82 is on (step S2'23), 5 mm is stored in the binding margin memory. Add (step 5231). As a result, if the binding margin memory exceeds 15 mm (step 5232), it is corrected to 15 mm (step S233). In the above two cases, the change flag is set to "B" (step 5234).

If the analog copy mode select key 75 and the binding margin copy mode select key 82 are both off, the magnification key displays 132 to 135 and 139 to 142 are turned off (step 5224). That is, since the magnification is different from the magnification stored in the magnification key, the magnification key display is turned off. Then, the difference is added to the magnification (step S225). As a result, 1.4
If it exceeds 20 (step 8226), it is corrected to 1.420 (step S227).

<e-7-2> Magnification down key FIG. 19 shows the magnification down key (72) processing routine (step 5212). The magnification down key 72 is normally used to reduce the copy magnification, or if the magnification down key 72 is turned on while the anamo copy mode select key 75 is turned on, it becomes a town key for each 1% of the anamo rate.
Also, if the binding margin copy mode select key 82 is turned on and the magnification down key 72 is turned on, the binding amount is 5.
It becomes the down key for mm@.

At the ON edge of the magnification down key 72 (step 5
235), Anamo copy mode select key 75 is ON
, that is, when the analog copy mode select key 75 is turned on and the magnification up key 71 is turned on (step S 236 ), step 5242 ). As a result, when the anamorphic rate memory becomes smaller than 0.64 (step 5243), it is corrected to 0.64 (step 524).
4). Also, the binding margin copy mode select key 82 is turned on.
When the binding margin copy mode select key 82 is turned on and the magnification down key 72 is turned on (step 5237), the binding margin memory is subtracted by 5 mm (step 245). As a result, the binding margin memory is 5mm.
If it becomes smaller (step 9246), it is corrected to 5 mm (step 5247). Furthermore, in the above two cases, the change flag is set to 1 (step 8248).

If both the Anamo copy mode select key 75 and the binding margin copy mode select key 82 are off, the magnification key displays 132 to 135 and 139 to 142 are turned off (step S238). That is, the magnification key is different from the magnification stored in the magnification key (step 5239). As a result, if it becomes smaller than 0.640 (step 5240
), is corrected to 0.640 (step S24+).

<e-7-3> Interrupt Key FIG. 20 shows the interrupt key processing routine S2+3. At the ON edge of the interrupt key 61 (step S25+
), if the interrupt copying display 108 is off (step S252), the display 108 is turned on and the copy mode (number of copies, magnification, etc.) is stored (step S253). Further, if the Anamo copy mode selection display LED 136 is lit, that is, if it is "Anamo copy mode" (step 5254), the Anamo interrupt flag is set to "bi" (step 9255). The binding margin copy mode selection display LED l If 43 is lit, that is,
'If it is the binding margin creation mode (step 8256), the binding margin interrupt flag is set to 1 (step 5257).

Binding margin creator automatic reduction mode selection display LED 144
If it is on, that is, if it is the "binding margin ten automatic reduction mode" (step 8258), the binding margin reduction interrupt flag is set to 1 (step S259).

Further, if the interrupt key 61 is turned on while the interrupt copying display 108 is lit, this means that the interrupt is canceled, so the display 109 is turned off and the stored copy mode is restored (step 5261). ).

If the Anamo interrupt flag is 1 (step 8262), the machine must be returned to the Anamo copy mode since it was in the Anamo copy mode before entering the interrupt. Therefore, the Anamo interrupt flag is returned to "0" (Step 9263), and the change flag is set to "BI" (Step 52).
64), Step 82 to call the Anamo introduction routine
65), store the number of copies displayed in display +01 (step 9266), and display the value of the anamo rate memory in display 101 (step 9267), 1%"
The display 102 is turned on (step 5267).

Similarly, when the binding margin flag is “bi” (step S27+
), set the binding margin flag to "0", step 5272),
The change flag is set to "1" (step 5273), and the binding margin introduction routine is called (step S2'74). Also, when the binding margin reduction flag is “bi” (step 92
B+), set the binding margin reduction flag to “0” Step 92
Step S283)
, calls the binding margin reduction introduction routine (step S2
8/1). Then, store the contents of display +01 in the copy number memory (step 5275), and display binding substitution 1.
Step S276), "mm" display 1
03 is turned on (step 5277).

Next, at the OFF edge of the interrupt key 61 (step 5
291 >, if the change flag is 1 (step 5
292), return the change flag to 0 (step S 293)
), the copy number memory is restored to the display 101 (step 5294), and the displays 102 and 103 are turned off (step S295). In other words, if the machine was not in normal mode before entering interrupt mode (“Anamo copy mode”, “binding margin creation mode”, “binding parishioner automatic reduction mode”, etc.), when canceling interrupt mode, , the anamorphic rate and binding substitution for each item are displayed in the copy number display area 101 only while the interrupt key 6I is pressed.

<e-7-4> Binding margin copy mode select key 21
The figure shows the binding margin copy mode select key 82 processing routine 5214. When the manual feed door is closed, turning on the binding margin copy mode select key 82 performs rotation of "normal mode -" binding margin creation mode - "binding parishioner automatic reduction mode - normal mode", but the manual feed door is closed. When is open, the rotation mode is "normal mode" - "binding margin creation mode"->"normalmode".

When the binding margin copy mode select key 82 is turned on (
Step 5301), if both the binding margin copy mode selection display LED 143 and the binding margin creation + automatic reduction mode selection display LED 144 are off, that is, in the normal state in which no binding margin is created (step 5302), the "binding margin creation mode" is set. Therefore, the binding margin introduction routine is called (step 5303), and the change flag is set to "bi" (step 5).
304).

Next, when the binding margin copy mode select key 82 is turned OFF (step 5311), if the binding margin creation mode (change flag is 1) (step S312), the change flag is set to "0" (step 5313). On the other hand, if the change flag is "0", then LED143 lights up and LED l
44 goes off, that is, it is determined that the mode is "binding margin creation mode" (step 5314), the next mode is set to "binding parishioner automatic reduction mode".However, if the manual feed door is not open (step 5315) ), calls the binding margin reduction routine (step S3]6). If the manual feed door is closed or the LED] 43 is off and the LED 144 is lit, that is, if the ``Binder Parish Parish automatic reduction mode'' is selected (Step 53
17) Next, in order to switch to the normal mode (a mode in which no binding margin is created), a binding margin release routine is called (step 5318). That is, when the manual feed door is open, the automatic reduction rate cannot be calculated because there are no sizes of manual paper to be inserted, so the "binding parishioner automatic reduction mode" is canceled.

With the above, by operating the change flag, “normal mode” is set.
→The “paper creation mode” is switched by turning the binding margin copy mode select key 82 ON (step 532).
1) "Binding margin creation mode" → "Binding parishioner automatic reduction mode" or "Binding parishioner automatic reduction mode" → "Normal mode" is switched by turning the OFF edge of the binding margin copy mode select key 82 (Step 9326) In other words, when the change flag is "B", that is, when the binding margin copy mode select key 82 is turned on and the magnification up/down keys (71, 72) are operated to switch the binding substitution, the mode is switched. Binding margin copy mode select key 8
2 was not turned on, but the binding margin copy mode select key 82 was turned on to change the binding substitution, and the mode shift was canceled by setting the change flag to "B".

Further, by turning on the binding margin copy mode select key 82, the value of the binding substitution memory is displayed on the copy number display 101 (steps 5321, 5322), and the "mm" display +03 is lit (step 5324). The binding margin is set to “mm” by turning the OFF edge of the copy mode select key 82.
The display 103 changes to the original number of copies (step 5).
327), and binding margin copy mode selection 82
Displays the number of copies before turning on, "mm" 10
3 is also turned off (step 9328).

<e-7-5> Anamo copy mode select key 22
The figure shows the Anamo copy mode select display-(75) processing routine S2+5. Anamo copy mode select)・
When the key 75 is turned ON (step S33), if the Anamo copy mode select display LED + 36 is off, that is, if it is the normal mode (step 5332), the Anamo introduction routine is called (step S333);
Set the change flag to "B" (step 5334). At the OFF edge of the analog copy mode select key 75 (step 9335), select the binding margin copy mode)
- Using the same concept as the key processing routine (e-7-4), if the change flag is "1" (step 5336), do nothing and set the change flag to "0" (step 9338).
.

On the other hand, if the change flag is "0", the Anamo cancellation routine is called (step 5337).

By turning on the Anamo copy mode select display 75 (step S341), the value of the Anamo rate memory is displayed on the copy number display 101. Steps 5342 and 534
3) Turn on the “%” display 102 (step 5344
). Anamo copy mode select key 75 OFF
The display 101 returns to the original number of copies (step 5346), displays the number of copies before turning on the Anamo copy mode select key 75, and the "%" display +02 also turns off. (Step 5347).

<e-7-6> Cassette select key FIG. 23 shows the cassette select key (66) processing lunitin 8216. When the cassette select key 66 is pressed,
Select the paper feed ports one by one.

When the cassette select key 66 is turned ON (step 5351), when the upper paper feed selection display LED 130 is lit, that is, when the upper paper feed slot of the copying machine main body 1 is selected (step 5352), the 3-stage If the paper feed unit 1000 is attached = 47- (step 5353), the three-stage paper feed unit 1000 is installed.
Select the upper paper feed slot (step 5354), and if there is no paper feed slot, select the lower paper feed slot of the copying machine body 1 (step 935).
5). Display LED] 3+ lights up, LED display 1
30 is not deleted (step 5356). ■7ED display 130
When does not light up, that is, when LED+31 lights up,
If the three-tier paper feed unit 1000 is not installed (step 9361), select the second paper feed slot in the main body (step 9362), turn on the display LED 30, and turn on the display LED+.
31 is turned off (step 9363). If the three-stage paper feed unit +000 is attached, if the upper stage is
64), select the middle row (step 9365), if the middle row (step 8367), select the lower row (step 9368)
), the display LED l 31 remains lit (step 5366'). If the lower row is selected, select the upper row of the copying machine main body (2) and light up the display LEI")+30 (step 9369).

Next, the selected size is displayed (step 53).
71, see section (e-7-7) for details), call the paper size code change routine (step 5372).
.

Next, when the display LED 144 is lit, that is, in the "binding parishioner automatic reduction mode" (step 5373), an automatic reduction magnification is calculated for the newly selected paper size (step 5374), and the magnification is set to CPt12. (step S375), and displays the magnification (step 8376).

FIG. 24 shows the paper size code change routine.

Paper size is coded as shown in the table. If the input paper size code is “3” (
Step 5381), since it is A5 vertical, the paper length is 21
0mm paper width is 14B, 5mm is stored in memory (step 9391).

Below, if the paper size code is "4" (step 5382), if the paper size code is "B5 vertical, 5" (step 9383)
), A4 vertical, if “6” (step 8384), B
4 vertical, if '7' (step 5385), A3 vertical, if '10' (step S386), B5 horizontal,
If "l" (step 5387), it is determined that the paper is A4 horizontal, and the length and medium of each paper are memorized (
Steps 8392-397).

If it is not the above code, it is determined that there is no paper (
Step 8388).

<e-7-7> Book copy mode select talk key 2
FIG. 5 shows the book copy mode select key processing routine S2+7. Book Copy Mort Select 1-Gi 8
3 ON edge (I-) (step 5401),
Return as is. Although it is ON edge, ADF
When in use, that is, when no original is set in the original feed tray of the ADF (step 5402), accepts the book copy mode (returns because there is no J).Also, when the display 410 is off, that is, when the manual feed door is open Also (step 5403
), there is no receiver, so I will return it. Next, when the book copy mode selection display LED I 45 is off, that is, when not in the book copy mode (step 5411), this LED I 45 is turned on (step 5412), CP
In order to instruct U2 to scan from 8 sides,
The A-side copy signal is set to "0" (Step S4] 3), and the B-side copy signal is set to "B" (Step 5414). When the book copy mode selection display LBDI 45 lights up, that is, to cancel the book copy mode (step S4
11), book copy mode select S416), both the A-side copy signal and the B-side copy signal are set to 0 (steps S4+7, S418).

<e-7-8> Auto exposure key FIG. 26 shows the automatic exposure key processing routine 8218.

When automatic exposure display 113 (AUTO) is off,
When the automatic exposure selection cancellation key 63 is turned on, this display is turned on and the manual exposure step display is turned off. Also,
The combination of switches 414 and 415 sends the median value to the dimming circuit 215 for automatic exposure control. Conversely, if you want to cancel automatic exposure, press switch 414.
.

The combination of 415 controls the manual value when automatic exposure is canceled.

That is, first, it is determined whether the automatic exposure selection cancellation key 63 is on or not (step S421), and if it is not on, the process returns directly.

Next, if the automatic exposure selection cancellation key 63 is turned on, it is determined whether the automatic exposure display 113 is off (step S422). If the light is off, the automatic exposure display 113 is turned on (step S423), and the manual step display 114 is turned off (step S424). Then, the central value of automatic exposure control is stored in the A register in accordance with the combination of switches 414 and 415 (steps 8425 to 431), and this value is transmitted to the dimming circuit 215 (step S432).

When the automatic exposure display 113 is lit (step S
422), stores the manual value of exposure control in the A register corresponding to the combination of switches 414 and 415 (steps 8441 to 447), and with this value lights up the manual exposure step 11 and turns off the automatic exposure display +13 (step S448) , transmits this value to the dimming circuit 2+5 (step S449).

<e-7-9> Subroutine for introducing binding margin, creating binding margin, and canceling binding margin FIGS. 27 to 29 show subroutines related to binding margin control. The binding margin introduction routine S303 (FIG. 27) is a subroutine for switching between the "normal mode" and the "binding margin creation mode." First, the binding margin copy mode selection display LED+43 is turned on (step S451).

Then, the value of the binding margin memory is transmitted to the CPU 2 (step S452).

The binding margin reduction introduction routine 9316 (FIG. 28) is a subroutine that switches from "binding margin creation mode" to "binding parishioner automatic reduction mode. Turn off the binding margin copy mode selection display LED 43 (Step 3461), and set the binding margin. Automatic reduction mode selection display LED I 4
4 is turned on (step 3462). Magnification (Selenium)・Display LEDs 132 to 135 and zoom magnification display LED 1
39 to 142 are turned off (step S463). C
Send the value of the binding margin memory to PU2 (step S4
64). Further, at this time, the copy magnification of the magnification key selected at this time is stored for return when the mode is canceled (steps 5465, 466).

Next, the automatic reduction magnification calculation routine calculates the "magnification without image loss" calculated from the paper length and binding substitution.
It is sent to U2 (step 9468) and its magnification is displayed (step 8469).

The binding margin release routine 5318 (FIG. 29) is a subroutine for switching between the binding samurai automatic reduction mode and the normal mode.Binding copy mode selection display LED
] 43 and turns on the binding margin creator automatic reduction mode selection display LED I 44 (step 5471,
472). Restore display of magnification select keys 67 to 70 (step 5473), restore copy magnification memory (step 5473)
step 5474). The binding substitution (-0) and copy magnification are transmitted to the CPU 2 (steps 5475, 476). The copy magnification display +18 is restored (step 5477).

<e-'7-to> Subroutine for introducing Anamo and canceling Anamo Fig. 30 and Fig. 31 show subroutines related to Anamo control. The Anamo introduction routine 5333 (Figure 30) is as follows:
This is a subroutine for switching from “normal mode” to “anamo copy mode. Step 5481) lights up the anamo copy mode select display LED + 36, and the selected magnification key display LED I 32 to 135, 139
- 142 are all turned off (step 5482). The selected magnification key and copy magnification are stored in memory for return when the mode is canceled (steps 9483 and 9484). Next, calculate the copy magnification x analog ratio (Step 9485), and use the CPU as the scanner speed.
2 (step 8486). As a result, scanning is performed at a scanning speed calculated based on the original magnification and the specified analog ratio.

The anamorphic release routine (FIG. 31) is a subroutine for switching from ``anamorphic copy mode'' to ``normal mode''. Turn off the Anamo copy mode select display LED 136 (Step 5491), Anamo introduction routine (3rd
The display of the select magnification key and the copy magnification stored in memory in FIG. 0) are restored (steps 5492 and 5493). Also, the copy magnification is sent to CPU2 (step 5494).
).

−56= <e-7-11> Automatic reduction magnification calculation FIG. 32 shows the automatic reduction magnification calculation routine 5374.

This routine calculates (paper length - binding substitution) ÷ (paper length x copy magnification) (step 5501).
-=S503).

<es>Display Processing FIG. 33 shows the display processing routine. As shown in the flowchart, one type of paper is displayed (step 5511),
Door display (step 5512), color toner display (
Step 5513), Book warning display (Step S, 5
14) These subroutines for processing the Anamo warning display (step 5515) are sequentially called.

<e-8-1> Display of one type of paper FIG. 34 shows a one-type paper display routine 5511.

Sl, S2. The display mode of the display 121 in S3 is upper and middle of the three-stage paper feeding unit 1000 when the display mode changeover switch 412 is on.

This is a mote that displays the lower paper feed slot, and if it is off, the paper one type set switch 1015.101
6; 1025, 1026; 1035°1036
This is a mote that displays the type of stone filter paper set by.

When the display mode selector switch 412 is on (Steshibu 5521), Masu Sl, B2. B3 display +21
After turning off the light (step 5522), if the 1st stage paper feeding of the 3rd stage paper feeding unit is selected (step 5523)
'), Sl (step 5524), in the case of middle paper feeding (step 5525), B2 (step 5526),
In the case of lower paper feeding (step S527), turn on B3 (step 8528).

If the display mode selector switch 412 is off,
Since this is the mode to display the paper type, first select Sl, B.
2. After turning off the display of B3 (step 5531), in the case of paper feeding in the three-stage paper feeding unit (step 853),
2), One type of paper Nananoto Suizochi 1015.1016
By the combination of (steps 8533 to 535),
In the case of middle paper feeding (step 5541), the combination of paper one type set switches 1025 and 1026 ('steps 5542 to □544), in the case of unfeeding paper (unisolated), (step S551) , one type of vapor set switch 1035.1036 in combination (
Steps 5552-5554), Soi 1, Sl, B2, respectively
．． B3 is displayed (steps 8536 to 538, 55
45-547, 5555-557).

<e-8-2> Door display FIG. 35 shows the door display routine 5512.

When the front door detection switch 413 of the copying machine main body 1 is off (step 5561), the door display 106 is turned on (
Step 8563). If it is on, the display 106 is turned off (step 5562).

Next, when the paper feed port of the three-stage paper feed unit l-1000 is selected (step 8564), CI-) U4
When a signal indicating that the drive kink detection switch 1002 is off (the three-stage paper feed unit is away from the main body) is received (step 8565), the door display 106 is turned on (step 3566), the monitor [, and the EDI 24 are turned on (step 3566). Step S 567). That is, the monitor 123
Turn on the 3-tier paper feed unit inside. Alternatively, copying is prohibited (step 9568). Three-stage paper feeding unit)・
Even if A1 is not selected (step 5564), or even if A1 is selected), the pathogging detection switch 1
If 002 is on (step S565), the door display 106 and monitor display LED 24 are turned off (steps 3569, 570).

<e-8-3> Color toner display In this routine 5513, when a developing device containing a developer other than standard toner (black toner) is set, a color toner display 117 is displayed.

In conventional copying machines capable of monochromatic color copying, when a color developer is set, there is a window installed in the front door of the copying machine body 1 to show the developer nozzle, or a color display on the operation panel. Display (Japanese Unexamined Patent Publication No. 51-538
Publication No. 67). However, the former allows outside light to enter through the front door window, and the latter is expensive.

By the way, if you mainly do black copying, -60
= To display whether it is a black copy or not (in J, knee 11i- is
Be able to prevent copy mistakes. In addition, this Jj method (co, cost is low).

FIG. 36 shows the color toner display routine 8513.

When the detection switch 411 is turned on by the magnet set only in the color toner developer (regardless of color) 6 (step 8581), the color toner display 1
17 is turned on (step 9582). Otherwise (black toner developer), the color toner display 117 is turned off (step 8583).

<e-8-4> Book warning display FIG. 37 shows the book warning display routine. When the book copy mode selection display LED 45 is on, that is, in the book copy mode (step 5591), and the selected paper is other than A4 horizontal or B5 horizontal (steps 5592 and 593), book copy is possible. However, the copied images are strange (book spreads are always horizontal (original glass May is 420 mm), and when I do A4 vertical threading, etc., one copy may contain parts of other vanes. The book warning display 109 is turned on (step 3595).

The light goes off when not copying a book or when copying a book correctly in A4 horizontal or B5 horizontal.
94).

<e-8-5> Anamo Warning Display FIG. 38 shows the Anamo warning display routine 5515. When the Anamo copy mode select display LEDI 36 is lit, that is, when Anamo copy mode is selected (step 56
01), the selected Anamo rate is 95% to 105
If it is other than % (step S602), the resolution of the image will deteriorate considerably and characters will become unreadable.
Step 5603) to turn on the Anamo warning display 110;
It does not light up when it is between 95% and 105%.

(f) Operation of optical system Figures 39 (A), (B) to Figure 42 (A), (B) show the program of CPL]2 (CPU for scanner and lens control) that controls the operation of the optical system. 1 shows a simplified flowchart. In the main routine (Figure 39),
After performing initial settings (step 5611), an internal timer is started (step 5612). Next, lens control (step 8613, details in Figure 41)
When it is determined by the internal timer that one routine has been completed (step 5615), the scanner control (step 5614, details shown in FIG. 42) is performed.
Return to step 5612.

As shown in FIG. 39(B), when there is an interrupt from the CPUI (step 5616), communication is performed with the CPUI (step 5617).

FIG. 40 shows the lens control routine 5613. In normal copying (step 5621), the lens is moved to match the copy magnification sent from the CPUI (step S623). When Anamo Copy Mode Select Display LED 136 is lit (Step 5)
621), that is, "Anamo copy mode (Anamo copy mode in this embodiment is a method in which the lens is normally fixed at the copy magnification position, but the magnification is changed in the scan direction by changing the scan direction -1. ), the lens is not moved to the magnification position sent from the CPUI, but is moved to the same magnification position (step S622).

FIG. 41 shows the scanner control routine 5614. Book copy mode selection display LED l 4
5 is not lit (step 5631), that is, in the normal copy mode, or when the book copy mode select display LED 145 is lit (book copy mode) and the A side is being scanned (step 5632).
, perform normal scanner control. That is, when the scanner leaves the fixed scanner position 5W (SW500) (step 8633), a timer T for register alignment with the paper considering the scan speed and a scan length timer determined by paper length x magnification are set ( Steps 5634, 635). At the end of timer T (
Step S 8636), sets the timing signal to "BI" (Step S 637), and at the end of the scan length timer (Step S 638), sets the scan signal to "0" and sets the return signal to "BI" (Step S 5639). In the case of scanning 8 sides of a book (step 5641), paper length x
After scanning by the magnification (step 5642), the same processing as described above is performed (steps 8643 to 648). however,
If the scanner reaches the longest scan (420 mm) before the scan length timer expires, the scan is terminated there (step 5649) and a return is initiated.

(g) ADF operation Figure 42 (A) and (B) show C that controls the ADF 300.
A schematic flowchart of PU3 is shown. When the CPU 3 is reset and the program starts, the CPU 3 is initialized by clearing the RAM, setting various registers, etc., and initial settings are made to put the device into the initial mode (step 5651).

Next, an internal timer built into the CPU 3 and whose value is set in advance as an initial setting is started (step 5652).

Next, document size detection (step 5654) of document control (step 5653) and other processing (
The subroutines of step S655) are sequentially called. When all subroutine processing is completed, the first set internal timer is waited for to end, and the l routine is ended (step 8656). The length of time of this one routine is used to count the various timers that appear in the subroutine. (Various timer values are shown in this 1.
The end of the timer is determined by how many times the routine has been performed. ) Furthermore, as shown in FIG. 42(B), data communication with the CPU (step 5658) is performed by an interrupt routine, regardless of the main routine, in response to an interrupt request from the CPU (step 5657).

FIG. 43 shows the document control 5653.

When there is a document in the document tray (the document detection sensor 311 is on) (step S66), the ADF is sent from the CPU I.
When the start signal becomes "B" (step 8662) or when the document feed flag becomes "B" (step 3663)
), and after setting the document feed flag to "0" (step 566
4) Turn on the transport motor 30I and turn on the document feed motor 302 (step 9665).

Next, processing is performed in the document feeding processing routine (step 8).
666), when the scan of the set number of sheets is completed (step 8667), the scan end flag is set to "bi" (scan 9668).

When the scan end flag is “pi” (step 8669),
Set the scan end flag to “0” (Step 5670)
, performs a document discharge processing routine (step 5671).

FIG. 44 shows the document feeding processing routine 8666. When a document is fed and the document feed sensor 310 is on (step 5681), flag K is set to "1" and timer A is set.
1 (step 5682). This timer AI is used to stop the document feed motor 302 in order to prevent the previous document from being fed and the next document being fed, and the document is driven by the conveyor belt 305. A timer value is set until it reaches the position.

Next, when flag K is “1” (step 5683),
When the document feed sensor 310 turns OFF, that is, the trailing edge of the document is detected (step 8684), the flag K is set to "0" and the timer A2 is started (step 5).
685). The value of timer A2 is set to a value until the trailing edge of the document reaches the predetermined position of the leading edge of the document.

When the timer A1 ends (step S69), the document feed motor 302 is stopped (step 5692). When timer A2 ends (step S 693), the conveyor belt motor 301 is stopped (step 5694), and C
A document home position signal is sent to the PUI (step 5695).

FIG. 45 shows the document discharge processing routine 5671. If the document detection sensor 311 determines that there is still another document in the document tray (step 5701), the document feed flag is set to "bi" (step S702). If there is no document, the conveyor belt motor 305 is (step 5703), and starts timer B (step S
704-). Timer B starts when the original on the original glass (
(in the longest case) or the time that can be discharged is set. When timer B ends (step 5705), the conveyor belt motor 301 is turned off (step 8706).

FIG. 46 shows the document size detection routine. Turn on the original detection sensor 311 (step 5711) and start the timer DU (step 5712). Next, when the OF"F edge of the document detection sensor 3]1, that is, the trailing edge of the document passes (step S7) 3), the timer DU is stopped (step 5714), and the value at that time is multiplied by the document conveyance speed. The value, that is, the length of the document, is stored in the A register (step 5715). If the value of the A register is 182 (mm) or less (step 57)
16), the document size is determined to be 85 horizontal (step 5717), and if it is 210 (mm) or less (step 8718), it is determined to be A4 horizontal (step 57).
19). If A1 is less than 257 (mm) (step S
720), it is determined that it is B5 vertical, step 572
1), 297 (mm) or less (step 5)
722), it is determined that the size is A4 vertical, step S72
3), if it is 364 (mm) or less (step 5724
), B4, step S 725), 36
If it exceeds 4 (mm), it is determined that the size is A3 (step 9726).

In this embodiment, the magnification up/down keys 7I and 72 are also used as keys for operating the increase/decrease of the anamorphic ratio. However, any other key provided on the copying machine for increasing/decreasing the rate can also be used for increasing/decreasing the anamorphic ratio. Keys for increasing and decreasing the exposure level include, for example, keys for increasing and decreasing the exposure level (see Japanese Patent Laid-Open No. 57-6898),
Keys for increasing and decreasing the number of copies (Tokuura Sho 53)
(Refer to Publication No.-97362).

(Effects of the Invention) According to the present invention, there is no need to provide a special operation means for setting the anamorphic rate, and the setting operation becomes simple.

When you combine the anamorphic polarization function and the optical variable magnification function,
The range of good image quality due to anamorphic magnification becomes wider.

Below margin

[Brief explanation of drawings]

FIG. 1 is a sectional view of an electrophotographic copying machine according to an embodiment of the present invention. FIGS. 2(a) and 2(b) are a plan view and a front view, respectively, of the operation panel of the copying machine. FIG. 3 is a plan view of a display using a fluorescent display tube. Figure 4 shows the microprocessor C that controls the main body of the copying machine.
FIG. 3 is a circuit diagram showing input/output to the PUI. Figure 5 shows the microprocessor CPU that controls the optical system.
FIG. Figure 6 shows the microprocessor CPU that controls the ADF.
FIG. 3 is a circuit diagram showing input/output to the device. FIG. 7 is a circuit diagram showing input and output to the microprocessor CPU4 that controls the three-stage paper feeding unit. FIG. 8 is a diagram illustrating copying in the binding margin copy mode. FIG. 9 is a diagram illustrating copying in the analog copy mode. FIG. 10 is a diagram illustrating copying in book copy mode. FIG. 11 is a flowchart of the main routine of the program that controls the main body of the copying machine. FIG. 12 is a flowchart of a subroutine for manual feed door processing. FIG. 13 is a flowchart of a subroutine for cassette insertion processing. FIGS. 14(a) and 14(b) are flowcharts of the copy operation subroutine. FIG. 15 is a flowchart of the automatic paper selection subroutine. FIG. 16 is a flowchart of the automatic magnification selection subroutine. FIG. 17 is a flowchart of the key processing subroutine. FIG. 18 is a flowchart of a subroutine for magnification up key processing. FIG. 19 is a flowchart of a subroutine for magnification down key processing. FIG. 20 is a flowchart of a subroutine for interrupt key processing. FIG. 21 is a flowchart of the subroutine of the binding margin copy mode selection process. FIG. 22 is a flowchart of a subroutine for Anamoco copy mode select key processing. FIG. 23 is a flowchart of a subroutine for cassette selection processing. FIG. 24 is a flowchart of a paper size changing subroutine. FIG. 25 is a flowchart of the book copy mode 1ζ select key processing subroutine. FIG. 26 is a flowchart of a subroutine for automatic exposure key processing. FIG. 27 is a flowchart of the subroutine for introducing the binding margin. FIG. 28 is a flowchart of a subroutine for binding 1'' and margin reduction introduction. FIG. 29 is a flowchart of a subroutine for binding margin cancellation.
It is 1. Figure 30 shows the flowchart of the subroutine for introducing Anamo = 1. Figure 31 shows the flowchart of the subroutine for canceling Anamo.
-1. FIG. 32 is a flowchart of the automatic reduction magnification calculation subroutine. FIG. 33 is a flowchart of a subroutine for display processing. FIG. 34 is a flowchart 1 of the subroutine for displaying one type of paper. FIG. 35 is a flowchart of the door display subroutine. FIG. 36 is a flowchart of the subroutine for color toner display. FIG. 37 is a flowchart of the book warning display subroutine. FIG. 38 is a flowchart of a subroutine for displaying an Anamo warning. FIGS. 39(Δ) and 39(B) are flowcharts of the main routine of the program of the microprocessor c p U 2 that controls the optical system of the copying machine. FIG. 40 is a flowchart of the lens control subroutine. FIG. 41 is a flowchart of the scanner control subroutine. Figures 42 (A) and (B) show the automatic document feeder (ADP).
) is a flowchart of the main routine of the program of the microprocessor CPU3. FIG. 43 is a flowchart of the document control subroutine. FIG. 44 is a flowchart 1 of a subroutine for document feeding processing. FIG. 45 is a flowchart of a subroutine for document ejection processing, and FIG. 46 is a flowchart of a subroutine for document size detection. 1. Copying machine body, 2. Photosensitive drum, 11. Document glass, 12. Exposure lens, 16. Variable magnification lens, 20
Upper paper feed cassette, 2I, manual feed door, 5o...-76 = Print button to start copying, 51-60.
Numeric keypad, 61/Interrupt key, 62... Functions as a stop key to stop multi-copying and dual-purpose key to clear set numbers, 63... Automatic exposure selection/cancellation key, 64... Exposure amount down key during manual exposure, 6
5. Exposure amount up key during manual exposure, 66...
Paper feed selection keys, 67-70 Copy magnification selection keys for 1-level, 2-level fixed reduction, and 1-level fixed enlargement, 71...
・Magnification up key, 72...Magnification down key, 75...
Anamo copy mode select key, 82... Binding margin copy mode select key, 83... Book copy mode select key, 100... Display section using a fluorescent display tube,
+01 - 3-digit display segment for displaying the number of copies, etc., 102...Display indicating that the number on display 101 indicates the Anamo ratio percentage, 103...The number on display 101 indicates the remaining amount of binding 108 Interrupt copying display, 109...
Book copy warning, 110...Anamo copy warning, I
+, ]...Paper empty display, 112. Manual copy display, 113. Exposure mode (auto exposure or manual) display, +14. Exposure step display, +17.
・Color toner display, 118...Copy magnification display, +2
0... Paper size display, 121... One type of paper display, 130... Top picture paper selection display LED, +31...
... Unfeed paper selection display LED, 132-135 ... Magnification key selection display LED, +36 ... Anamo copy mode selection display l7ED, 143 ... Binding margin Fubee mode selection display LED, +44 ... Binding substitute Acid and automatic reduction mode select display LED, 145...
Book copy mode selection display LED, 300...
Automatic document feeder (ADF), 310... Original detection sensor, 410... Manual feed door opening/closing detection switch, 4+2
...Display mode selector switch, 414,415...
Automatic exposure median value setting switch, 1000... Three-tier paper feeding unit, 1002 - Three-tier paper feeding unit i - Attachment/detachment detection switch, SEI, SF2... Manual paper feeding detection switch. Patent applicant Minolta Camera Co., Ltd. Representative
Patent attorney Aoyama Ao and two others 1N Kaisho 62-1
1843 (22) To Q-NIIl? t1% 00+--+--! Electric? Fung Fung Fung! 11+11+Il++1llll book-1゜-& Figure 5 Figure 6 Figure 7 District Figure 11
Figure 12 2y-t Imaki Jk
93ru→-ノ initial setting. Edge internal timer 32'A+, f
z Show / 12 start Torto..., S23 ; Tobi S
−. Theory →゛ 701' One tone ρ with force
Outer 144 Processing Routine Copy Operation 144 Figure 13 1 Bookkeeping... 144. ψta). Q77- Figure 42 (A)

Claims (1)

[Claims] (1) An increase/decrease input means that can specify the direction of increase/decrease for functions other than the anamorphic magnification copy mode, and an electrophotographic copying machine that copies at the set anamorphic rate when the anamorphic magnification copy mode is specified. An analog magnification copy mode specifying means for specifying a biased magnification copy mode, an anamo bias magnification means for changing the document scanning speed of the optical system in accordance with a set anamo ratio, and an anamo bias magnification copy mode specifying means. An analog magnification control means for increasing or decreasing an analog ratio by a predetermined value in response to an increase/decrease operation of the increase/decrease input means when an analog bias magnification copy mode is specified. An electrophotographic copying machine characterized by: