JPS6212545A - Electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To enable the meaning of paper feed indication to be simply changed over by providing an input changing-over means for changing over the indication content of multiple indication stages to either of kind of copy paper detected by a kind detecting means or a paper feed port selected by a paper feed port selecting means. CONSTITUTION:When an indication mode changing-over switch 412 is turned on, the indication modes S1, S2, S3 of indication panels indicate the upper, medium and lower paper feed ports of a three-stage paper feed unit 1000. On the other hand, when said switch 412 is turned off, the indication modes indicate the kinds of paper set by paper kind set switches 1015, 1016, 1025, 1026, 1035 and 1036 and after the indications S1, S2, S3 are turned off, paper kind set switches corresponding to the paper feed from the respective upper, medium and lower stages of the three-stage paper feed unit 1000 are used to indicate S1, S2, S3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an electrophotographic copying machine equipped with an indication of the type of copy paper, etc.

(Prior Art) An electrophotographic copying machine usually includes a paper feed port consisting of a tray or a cassette for storing copy paper. Additionally, some are equipped with a manual paper feed slot.

Copy paper is supplied to the transfer section from these paper feed ports, and copies are made. The operation panel on the top of the electrophotographic copying machine has a key to select the paper feed slot, and at the same time,
Selected paper feed slot and copy paper size (A4.84, etc.)
is displayed.

(Problems to be Solved by the Invention) Some electrophotographic copying machines allow a paper feed unit having a plurality of paper feed ports to be optionally connected to a normal paper feed port. Special copy paper (for example, color paper) can be supplied from the plurality of paper feed ports. Then, the type of copy paper is detected by a sensor and displayed on an operation panel or the like. (For example, for three types of copy paper, St, S
2. Displayed as S3. ) By the way, users who do not use special copy paper can use regular copy paper. In this case, the display of the copy paper type becomes meaningless.

Incidentally, Japanese Patent Application Laid-Open No. 14852/1983 discloses an electrophotographic copying machine in which the meaning of display can be changed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrophotographic copying machine in which the meaning of a display regarding paper feeding can be changed.

(Means for Solving the Problems) An electrophotographic copying machine according to the present invention includes a plurality of paper feed ports for supplying copy paper, a type detection means for detecting the type of copy paper supplied, and a type detecting means for detecting the type of copy paper supplied. a paper feed port selection means for selecting a paper feed port to be fed; a multi-stage display means for displaying a plurality of states;
It is characterized by comprising an input switching means for switching the display content of the display means between the type of copy paper detected by the type detection means and the paper feed port selected by the paper feed port selection means. .

(Function) By switching the input switching means, the display contents of the multi-stage display means can be switched between displaying the type of copy paper and displaying the paper feed slot. Can be shared.

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

Examples will be described in the following order.

a. Configuration of the copier, operation panel C1 Internal configuration of the copier d, Special copy mode (binding margin copy mode, Anamo copy mode and book copy mode) e, Operation of the copier body e-1, Main routine e- 29 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 up key e-7-2 , Magnification down key e -7-3, Interrupt key e -7-4, Binding margin 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 release e-7-10, anamo introduction and anamo release e-7-11.
Automatic reduction magnification calculation e-80 display processing e-8-1, one type of paper display e-8-2, door display e-8-3, color toner display e-8-4. The book warning display r, the operation of the optical system g, and the operation of the automatic document feeder (ADF)
(Figure 34).

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, an automatic document feeder (ADF') 300 installed as an option, and a three-stage paper feeding unit 1Ooo.

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 counterclockwise is disposed in the center of the copying machine main body l.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 1
0 etc. are arranged sequentially. The photosensitive drum 2 is a drum provided with a photosensitive material (for example, selenium) on its surface, and upon each copying, it is irradiated with light by an eraser lamp 3.5, charged by passing through chargers 4 and 6, and then, The image is exposed to light from an optical system, which will be explained next. The motor M1 drives the photosensitive drum 2 and the like. Note that a color toner detection sensor 411 is attached above the developing device 7.

The optical system is installed below the document table glass 11 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
As shown by 8, the light passes through mirrors 13, 14, 15, and 17, and reaches the photosensitive drum 2. Fixed position switch SW5
00 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 I3
, corresponding to the rotation of the photoreceptor drum 2 at a circumferential speed of
At the same time, the second mirror 14 and the third mirror 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 body 1, an automatic paper feed cassette 20 is installed at the upper paper feed slot, a three-stage paper feed unit 1000 is installed at the lower paper feed slot, and a manual paper feed section 21 is installed at the top. The three-stage paper feed unit l000 is installed as an option instead of the second automatic paper feed cassette that is set in the lower paper feed port as a standard equipment. The 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 1 by the respective paper feed rollers 22 and 23, passes through each pair of transport rollers 24 and 25, and is crimped. It is conveyed to the timing roller 26, which is in the current state, and is temporarily on standby there. 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 at the upper and lower paper feed ports, and detects whether the copy paper is placed vertically or horizontally with respect to the size of the copy paper in the cassette and 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, CA31 [A4], [A
5, [B11゜[B11, [A4], [B11
You can select vertical or horizontal. Also, switch 4
01 to 404 and 405 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. The size and setting direction of the copy paper can be set using switches 401 to 404 and 405 to 40.
8 is detected by a 4-bit code corresponding to the combination of on and off, and the RA of CPU1 of the control circuit (see Figure 4) is detected.
It is stored in M213.

An example of a code table for switches 401 to 404 is shown in the table below. This table indicates that the switch is on as [0] and that it is off as [1], and if all the switches are off, it means that the cassette 20 is not installed in the paper feed section, that is, copy paper is The absence of this will be detected.

Among the sensors attached to the copying machine main body I, 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 21a is kept closed when not in use. sensor S
E1. SE2 is a paper detection switch 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 of the display 121 of S3. The front door detection switch 413 is a switch that detects opening/closing of the front door of the copying machine main body l. Automatic exposure center setting switches 414 and 415 are used to set the center of the exposure level during automatic exposure.

The three-stage paper feed unit 1000 with the following margins is movably supported on a rail 1040, and the three paper feed ports at the top, middle, and bottom are respectively provided with cassettes 1010. j020°1030 can be set. Docking detection switch 1002
detects whether the three-stage paper feeding unit 1000 is coupled to the copying machine main body 1 or not. The motor M5 drives the paper feeding system of the three-stage paper feeding unit 1000. Paper size detection switches 1011- are shown together.
1014.1021-1024.1031 to 1034 detect the paper size of the upper, middle, and lower paper feed ports, respectively, and also use the one-type paper set switches 1015 and 1.
016; 1025 and 1026; 1035 and 103
6 are switches for setting the paper types for the upper, middle, and lower paper feed ports, respectively. Paper feed clutch 1017,
1027.1037 connects the transport roller 1018.1028.1038 corresponding to the selected cassette to the drive system when any one of the corresponding cassettes is selected, and transfers paper of the specified size to the copying machine. Supplied to the L side of the main 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. 51-6
0: Numeric keypad for a& for 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: Dew tip 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 for increasing 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 copy 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 which are selectively set in advance. 82:
Binding margin copy mode select key. 83 NiBook Copy Mode Select Key The display unit 100 using a fluorescent display tube displays the following reference numerals as clearly shown in FIG.

101: 3-digit display segment for displaying the number of copies, etc. 102: A biological child indicating the army in which the numerical value on the display 101 indicates the conger ratio percentage - 103: A display indicating that the numerical value on the display lot indicates the binding substitution in mm units. 104: Serviceman call emoji. I05: 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;
Book copy warning. 110: Anamorphic copy warning that occurs 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) display. 114: Exposure step display. 115: Display of waste toner full. 116: ) Naenbuti display. 117: Color toner display. 118
: Copy magnification display. 119: Calculation mode display. 120
:Pie bar 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.

I23: Monitor display. 124 External paper feed jam display L
ED, 125/Paper feeding error display LED, 126: Separation/unloading error display LED, 127: Sorter jam display LED
, 128: ADF jam display LED 6130: Upper paper feed selection display LED, 131: Lower paper feed selection display LED
D0132-135, magnification key selection display LED, 1
36: Anamo copy mode selection display LED, 137
: Calculation mode selection display LED, 13B: Zoom input selection display LED, 139 to 142: Zoom magnification key selection display LED, 143: Binding margin copy mode selection display LED, 144: Binding margin creation and automatic reduction mode selection display ED, 145: Book copy mode selection display LED.

(c) Structure of the control unit of the copying machine FIG. 4 shows the CPU (
201) 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 ut 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 CPUI via a decoder 211. In addition to the various components shown in the figure, a fluorescent display tube 100 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゜CPU
3. This is a communication line for connecting with the CPU 4). C.P.
The UI transmits to the dimming circuit 215, as data, a value selected from the 9-step exposure values during manual exposure, and a value that is the center of the automatic exposure during automatic exposure.

FIG. 5 shows the input/output configuration of CPtJ2 that controls the optical system. The input/output board of CPU2 is scan motor M
Scan motor control circuit 216 that controls 3
and is connected to 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 time of constant low.

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 includes a conveyor belt motor 301.
A signal is output to the paper feed motor 302, and signals from the document feed sensor 310 and the document detection sensor 311 are input. Further, the CPU 3 communicates with the CPU via the bus 214.
Communicate with I.

FIG. 7 shows a CPU that controls the three-stage paper feeding unit 1000.
4 shows the input/output configuration. The input/output boat of CPU4 has upper, middle, and lower paper feed clutches 1017° + n 97
+ n Q 7 )-tam-xhX
Similar to the CPUI, the Vrptra is connected to various sensors shown in the figure (some of which are indicated by reference numbers) via input/output expansion rcs 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 copied onto the copy paper. It can be placed on the right side of the

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 rate (= (paper length - binding margin 11) / paper length) is calculated from the width of the copy paper (paper length) and the amount of binding margin, and the reduction rate is automatically calculated. Determine the magnification accordingly.

Anamo copy mode> In the Anamo copy mode of this embodiment (see Figure 9), the width direction of the copy (depending on the lens position) is kept the same, and only the scanner speed is changed to create an image in the length direction. Controls shortening or lengthening. Note that if the analog magnification (aspect ratio) is not within the range of 95% to 105%, the resolution will drop, so a warning message 11 will be displayed to the user.
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 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 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 CPtJl.

When the CPU is reset and the program is started, first, the CPU is initialized by clearing the RAM, setting various registers, etc., and initial settings are made to put the device into the initial mode (step Sl).

Next, an internal timer that is built into the CPUI and whose value is set in advance as an 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 510).

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 one routine is used to count the various timers that appear in the subroutine. (The end of each timer value is determined based on how many times this I routine has been 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 112 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). In addition, it is determined whether the LED 144 is ON, that is, the "binding parishioner automatic reduction mode" is determined (step 524), and if so, the mode is canceled and automatically switched to the "binding margin creation mode". The binding margin introduction routine (see FIG. 27) is called (step 525).
). This is a mode that automatically calculates the reduction rate from the length of the paper and the amount of binding.
Since it is not known whether the paper will be inserted, the binding parishioner automatic reduction mode is automatically canceled. Next, it is determined whether the book copy mode select display LED 145 is lit, that is, whether the book copy mode is in effect (step 526). If so, the manual copy size is not known, so book scanning cannot be performed. Therefore, step 52 turns off LED I 45.
7) The book B side signal and the book A side signal are set to 0 (step 828), and the book copy mode is automatically canceled.

Next, when the ON edge of the switch 410 is detected, that is, the manual feed door is closed (step 531), the manual feed display +1
2 to turn off the light (step 532), number of copies displayed 101
is set to 1 (step 533).

And then return.

<e-3> 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), the upper cassette is pulled out (step 543), and the lower cassette is selected. If the lower cassette is pulled out (step 544), the copy magnification is changed to the original magnification (automatic reduction mode) at each edge (step 545), the magnification is displayed (step 846), and it is sent to the CPU 2. (step 547). This is because before the selected cassette was removed, the copy magnification was determined by the paper length and binding margin of that cassette, but when the cassette is removed, it becomes impossible to calculate, so the copy magnification is automatically returned to the original magnification. .

Next, the upper cassette (step 551) or the lower cassette (
When a new paper is inserted (step 552), the paper feed port is automatically selected (steps S53 and 554).
, automatically calculate the reduction magnification (magnification that does not cause image loss from the paper length and binding margin) (step 555), CP
Send to U2 (step 856) and display the magnification (step 557).

The above explanation is about the upper and lower two-tier cassettes as standard equipment, but if the three-tier paper feeding unit 1000 is attached as an option, each paper feeding cassette of the three-tier paper feeding unit 1000 + 01 .1020
．． The same process may be performed for 1030.

<e-4> Copy operation Figure 14 (a) and (b) show the copy operation routine S5.
shows. When the LED 145 is lit, 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 turned off (step 863), and the book copy mode is canceled (step 564). . That is, the book scan control becomes meaningless when the ADF 300 is used, so it is automatically canceled.

If it is not a manual copy (step 571), when the print button 50 is turned on (step 572),
If the ADF is not used (step 573), the copy start flag is set to "bi" (step 574). If the ADP is used (step 572), if there is a document in the ADF tray (
Step 575), set the ADF start signal to “1” for the ADF 300 (Step 876). Also, when the timing is not the ON edge of the print button 50, (
Step 572), if ADF is used (Step 878)
), when the original position signal from ADF30Q becomes bi (
Step 579), set the copy start flag to 'l' (
step 580). Next, in the case of manual paper copying (step 571), the detection sensor S of the manual paper insertion slot
Regarding the EI ON edge (step 577), the same process as the print 5W50 ON edge (steps S73 to
576).

When the copy start flag becomes "B" 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 0, and T-A (timer A), T-B (timer B) (step 582). If the sketch paper cassette is selected (step 584), turn on the sketch paper roller clutch (step 585). If the sketch paper cassette is selected (step 886). ), turn on the sketch paper roller clutch (step 587). Manual feed is selector i1 and 11j11-1'/fu 壬-, ko ("QQ)
Turn on the %RI M a clutch (step 58
9).

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-H.

When it is time for T-B to end, if it is the binding margin production mode (step S102), a timer E corresponding to the amount of paper is set in order to advance paper by the amount used for the binding margin.
is started (step SIO3), the timing roller 26 is turned on (step 5104), and the scan signal is turned on (step S105). Then, when the timer E ends (step 5106), the timing roller 26 is stopped (step 5I07).

As shown in FIG. 14(b), when the timing signal becomes "B" in step 5ill, the timing roller clutch is turned on and T-C is set (step 51).
12).

In step 5121, at the timing when TC ends, the charging, scan signal, and timing roller clutch are turned off (step 5t22).

In step 5131, 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 S'132). 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)
133), executes the next manual copy mode. As a result, while paper is set in the manual paper feed slot,
Continue manual copying automatically.

Next, it is determined whether the copying for the multi-copy portion has been completed (step 5134), and if not, the copy start flag is set to "1" (step S135).

Next, if book copy mode is selected, i.e.
When the LED 145 is on (step 9136), it is determined whether the B-side copy signal is “BI” (step 5).
141). If it is "BI", the 8-side copy is completed step S142), the A-side copy signal is set to "BI" (step 5143), the copy start flag is set to "BI" (step 5144), and the A-side copy is performed. 0", the A-side copy is finished (Step 5145), and the switch is made to the 8-side copy (Step 5146), waiting for the next print. Then, the scanner that once left its normal position returns,
When the fixed position sensor SW500 is turned on (step 514
5) Stop the developing motor and transfer, and set T-D (step 9146).

At the timing when T-D ends (step S I
51), stop the main motor Ml (step 5
152). Then, output the results of the processing so far (
Step S+55).

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

The CPU 3 that controls the ADF 300 detects and transmits the document size data and temporarily stores it in the A register (step 9161). Next, the binding margin creator automatic reduction mode selection is displayed and it is determined whether the ED 144 is on (step S+62). 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 5163). 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 (i.e.
The copy magnification is returned to ÷ ((selected paper length - binding margin amount)/selected paper length)) (step 5164), and then multiplied by the A register (step 8165).

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 cassette (step 5177), the size mismatch flag is set to “0”.
Step S172) selects the upper paper feed port (step 5173). If the A register is equal to the paper size of the lower paper feed cassette (step 5174),
Set the size nonconformity flag to “0” (step 5175)
, selects the lower paper feed port (step S+76). Next, it is determined whether the three-stage paper feeding unit is included (step 517).
7). If not, the size mismatch flag is set to "B" (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 to "0" (step S180), and select the upper stage of the three-stage paper feeding unit (step 8181).A
If the 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 "θ" (step 3183), and the middle stage of the three-stage paper feeding unit is selected (step 5184). If it is equal to the paper size of the lower stage of the tiered paper feeding unit (step 5t85), the size mismatch flag is set to "0" (step 5I86), and the lower tier of the three tiered paper feeding unit is selected (step 9187). If the size is not paper size, the process advances to step 5178.

<e-6> Automatic magnification selection FIG. 16 shows the automatic magnification selection routine S7. C.P.
In step S, the vertical length of the document size data detected and transmitted by U3 (ADF') is stored in the A register.
191), and stores the width length in the B register (step S192).

It is determined whether the automatic reduction mode display LED 144 for binding allowance production is on or off (step 5193).

When it is off, store the length of the paper divided by the A register (original length) in the A register (step 5194).
. When the LED 144 is on, that is, in the "binding parishioner automatic reduction mode", the magnification is calculated using the value obtained by subtracting the binding margin from the paper length as a simulated paper length, and is stored in the A register. (Steps 5195, 5196
). This allows automatic magnification calculation that takes into account the binding margin. 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 9201 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 nonconformity flag to “bi” (step 520
5). If it is within the capacity, the magnification incompatibility flag is set to "0" (step 5206), 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 5216'), book copy mode select key 83 (step 5217), and automatic exposure key 63 (step 5218).

<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 71 while turning on the Anamo copy mode select key 75, it becomes an up key for each 1% of the Anamo rate. , While turning on the binding margin copy mode select key 82, press the magnification up key 7.
When 1 is turned on, it becomes an up key for every 5+aa+ of the binding margin amount.

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 anamorphic copy mode select key 75 is turned on (step 5212), -L(o
, o l) (Sterap S 228). As a result, if the anamorphic rate memory exceeds 1.42 (step S229), it is corrected to 1.42 (step S523).
0).

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 S223), 5 openings are stored in the binding margin memory. Add (step 9231). As a result, if the binding margin memory exceeds 15 mm (step 5232), 15+amL: correction (
Step S233). Further, in the above two cases, the change flag is set to "1 degree" (step S234).

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, crystal is added to the magnification (step S225). 7) If the result exceeds 1.42'0 (step 5226),
1.420+: Correct (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, but if you turn on the magnification down key 72 while turning on the Anamo copy mode select key 75, it becomes a key to decrease the Anamo rate by 1%.
Further, when the magnification down key 72 is turned on while the binding/formation copy mode select key 82 is turned on, the down key is used for every 5 mm of the remaining amount of binding.゛At the ON edge of the magnification down key 72 (step 5
235), Anamo copy mode select key 75 is O
N, that is, when the magnification key 71 is turned on while the Anamo copy mode select key 75 is ON (step 5236), the Anamo copy mode select key 75 is turned on (step 5236).
t ) (Stella: jS242). the result,
When the anamorphic rate memory becomes smaller than 0.64 (step 5243), it is corrected to 0.64 (step 5244)
. Further, when the binding copy mode select key 82 is turned on, that is, the binding copy mode select key 82
When the magnification down key 72 is turned on while turning on (step S237), the binding margin memory is subtracted by 5 mm (
Step 245). As a result, if the binding margin memory becomes smaller than 5 mm (step 5246), 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 5238). 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)
, corrected to 0.640 (step 5241).

<e-7-3> Interrupt Key FIG. 20 shows the interrupt key processing routine 5213. At the ON edge of the interrupt key 61 (step 5251
), if the interrupt copying display 108 is off (step S252), the display 10B is turned on and the copy mode (number of copies, magnification, etc.) is stored (step 5253). Also, Anamo copy mode selection display L
If the ED 136 is lit, that is, if it is in "anamo copy mode" (step 5254), the analog interrupt flag is set to "bi" (step 5255). If the binding margin copy mode select/to display LED 143 is lit, In other words, “
If the binding margin creation mode is set (step 9256), the binding margin interrupt flag is set to 1 (step S257).

Binding margin creator automatic reduction mode selection display LED 144
is on, that is, if it is the "binding parishioner automatic reduction mode" (step S258), the binding margin reduction interrupt flag is set to 1.
(step 5259).

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 9262), the machine must return to the Anamo copy mode since it was in the Anamo copy mode before entering the interrupt. Step 9263) to reset the change flag to "0", step 526 to set the change flag to "0"
4) Call the Anamo introduction routine step 526
5) After storing the number of copies displayed on the display 101 (step 9266), the value of the anamo rate memory is displayed on the display 101.Step S267), "%
“Turn on the display 102 (step 5267).

Similarly, when the binding margin flag is “bi” (step 5271
), set the binding margin flag to "0", step 5272),
Set the change flag to "BI" (Step 5273) and call the binding margin introduction routine (Step 5274).
Even when the binding margin reduction flag is “bi” (step 5281
), set the binding margin reduction flag to “0” Step 92 B
2) Set the change flag to “B” Step S283)
, calls the binding margin reduction introduction routine (step 52
84). Then, the contents of display 101 are stored in the copy number memory (step 5275'), and the binding margin is displayed 1.
01 (step 5276), "am" display 10
3 is turned on (step S277).

Next, at the OFF edge of the interrupt key 61 (step 5
291), if the change flag is l (step S
292), return the change flag to O (step S 293)
) and restores the copy number memory to the display 101 (step S294), and turns off the displays 102 and 103 (
Step 5295). 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 respective anamorphic ratios and binding margins are displayed in the copy number display area 101 only while the interrupt key 61 is pressed.

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

When the binding margin copy mode select key 82 is turned on (
Step 5301), if the binding copy mode selection display LED 143 and the binding margin creation acid child automatic reduction mode selection display LED l 44 are both off, that is, in the normal state in which no binding margin is created (step 5302), the "binding margin creation mode" is selected. ”, the binding margin introduction routine is called (step 5303), and the change flag is set to “1” (step 5304).

Next, when the binding margin copy mode select key 82 is turned OFF (step 5311), if the binding margin creation mode (change flag is I) (step 5312), the change flag is set to "0" (step 5313). On the other hand, if the change flag is "0", then LED 143 lights up and LED 1
44 is turned off, that is, it is determined that it is in the "binding margin creation mode" (step 5314), in order to set the next mode to the "binding parishioner automatic reduction mode", if the manual feed door is not open ( Step 5315), and a binding margin reduction routine is called (Step 5316). If the manual feed door is closed or the LED 143 is off and the LED 144 is on, that is, if the "Binder Parish Auto Reduction Mobi" is selected (Step 53
17) Next, in order to return to the normal mode (mode in which no binding margin is created), a binding margin release routine is called (step 531B). That is, when the manual feed door is open, it is not known what size manual paper will be inserted, so the automatic reduction rate cannot be calculated, so the "binding parishioner automatic reduction mode" is canceled.

With the above, by operating the change flag, “normal mode” is set.
- The "binding creation mode" is switched by turning on the binding margin copy mode select key 82 (step 532).
1) "Binding margin creation mode → "Binding parishioner automatic reduction mode" or "Binding parishioner automatic reduction mode" - "Normal mode" is the OF of the binding margin copy mode select key 82.
Switching occurs at the F edge (step 5326). That is,
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 margin amount,
It is determined that the binding margin copy mode select key 82 was not turned on to switch the mode, but that the binding margin copy mode select key 82 was turned on to change the binding margin amount, and the change flag is set to 1". The mode movement is canceled by

Further, by turning on the binding margin copy mode select key 82, the value of the binding margin memory is displayed on the number of copies display 101 (steps 5321, 5322), and the "n+m" display 103 is turned on (step 5324). By turning the OFF edge of the binding margin copy mode select key 82, “m”
The "n" display 103 returns to the original number of copies (step 5327), displays the number of copies before turning on the binding copy mode select key 82, and the "mm" display 103 also turns off (step 532B). ).

<e-7-5> Anamo copy mode select key 22
The figure shows an analog copy mode select key (75) processing routine 5215. When the Anamo copy mode select key 75 is turned on (Step 5331), the Anamo copy mode select display LED 136 is off, that is, if it is the normal mode (Step 5332), the Anamo introduction routine is called (Step 5333), and the change flag is set. is set to "l" (step 5334). At the OFF edge of the analog copy mode select key 75 (step 5335), the change flag is set to "l" using the same concept as the binding copy mode select key processing routine (e-7-4). ” (step S336), nothing is done and the change flag is set to “0” (step S33B).

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

By turning on the Anamo copy mode select key 75 (step 5341), the value of the Anamo rate memory is displayed on the number of copies display lO1.Steps 5342 and 5343
), turns on the “%” display 102 (step S 344
). When the Anamo copy mode select key 75 is turned OFF (step 5345), the display 101 returns to the original number of copies (step 5346), and displays the number of copies before turning on the Anamo copy mode select key 75. ,"%"display! 02 is turned off (step 5347).

<e-7-6> Cassette Select Key FIG. 23 shows the cassette select key (66) processing routine 5216. 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 selection display LED 130 is lit, that is, when the upper paper feed port of the copying machine main body 1 is selected (step 5352), the 3-stage If the paper feed unit 1000 is attached (step 5353), the upper stage of the three-stage paper feed unit 1000 is installed (step 5354),
If not, select the lower paper feed slot of the copying machine main body 1 (step 5355). The display LED 131 is turned on and the LED display 130 is turned off (step 5356).

When the LED display 130 does not light up, that is, the LED 131
is lit, if the three-stage paper feed unit 1000 is not attached (step 5361), select the paper feed slot on the main body (step 5362), display ED 130, turn off display I and ED 131. (Step 53
63). If the three-stage paper feed unit 1000 is attached,
If it is the upper row (step 8364), then the middle row (step 33).
65), if it is the middle row (step 5367), select the lower row (step 5368), and keep the display LED 131 lit (step 5366). Also, if you want to select the lower row, select the upper row of the copier body l and display the LED.
130 is turned on (step 5369).

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 S373), an automatic reduction magnification is calculated for the newly selected paper size (step 5374), and the magnification is is sent to the CPU 2 (step 5375), and the magnification is displayed (step 5376).

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
The 0mm paper width is memorized as 148°5mm (step 5391).

Below, if the paper size code is "4°" (step 5382), B5 vertical, and "5" (step 538).
3), A4 vertical, if “6” (step 5384),
B4 vertical, if "7" (step 5385), A3 vertical, if "10" (step 5386), B5 horizontal,
If it is 1 bi (step 8387), it is determined that it is A4 horizontal, and 1. Each paper length and paper width are memorized (steps 8392 to 397).

If it is not the above code, it is determined that there is no paper (
Step 9388).

<e-7-7> Book copy mode select key 25th
The figure shows book copy mode select key processing routine 5.
217 is shown. If the book copy mode select key 83 is not ON (step 5401), the process returns directly. Although it is an ON edge, when ADP is used, that is, when no original is set in the original feed tray of ADF (step 5402), the book copy mode is not accepted and the process returns. Further, even when the display 410 is off, that is, the manual feed door is open (step 5403), the receiver is not attached, so the process returns. Next, when the book copy mode selection display LED 145 is turned off, that is, when it is not the book copy mode (step 5411), this LED 1
45 is turned on (step 5412), and in order to instruct the CPU 2 to scan from the B side, the A side copy signal is set to "0" (step 5413), and the B side copy signal is set to "BI" (step 5414). ).When the book copy mode selection display LED I 45 lights up, that is, when canceling the book copy mode (step S411),
The book copy mode selection display 145 is turned off (step 5416), and both the A side copy signal and the B side copy signal are set to O (steps 5417, 5418).

<e-7-s> Automatic 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 manual value at the time of automatic exposure cancellation is controlled by the combination of ゜415.

That is, first, it is determined whether or not the automatic exposure selection cancellation key 63 is on (step 5421), 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 5422). If the light is off, the automatic exposure display 113 is turned on (step 5423), and the manual step display 114 is turned off (step 5424). Then, corresponding to the combination of switches 414 and 415, A
The central value of the automatic exposure control is stored in the register (steps 8425 to 43I), and this value is transmitted to the dimming circuit 215 (step 5432).

When the automatic exposure display 113 is lit (step 5)
422), stores the manual exposure control value in the A register in accordance with the combination of switches 414 and 415 (steps 5441 to 447), and with this value lights up the manual exposure step 11 and turns off the automatic exposure display +13 (step 5448) , transmits this value to the dimming circuit 215 (step 5449).

<e-7-9> Subroutine for introducing binding margin and canceling ml″eh<-WP margin Figures 27 to 29 show subroutines related to binding margin control. This is a subroutine for switching between "mode" and "binding margin creation mode". First, the binding margin copy mode selection display LED 143 is turned on (step 5451).
. Then, the value of the binding substitution memory is sent to the CPU 2 (
Step 5452).

The binding margin reduction introduction routine 5316 (FIG. 28) is a subroutine for switching between "binding margin creation mode" and "binding parishioner automatic reduction mode". Turn off the binding margin copy mode selection display LED 143 (step 3461)
, binding margin creation + automatic reduction mode selection display LED 1
44 is turned on (step 5462). Magnification selection display LED 132~''35 and zoom magnification display LED
139 to 142 are turned off (step 5463). C
Sends the value of the binding device memory to PU2 (step 54
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 margin amount.
It is sent to U2 (step 9468), and its magnification is displayed (step 5469).

The binding margin release routine 5318 (FIG. 29) is a subroutine for switching from the "binding automatic reduction mode" to the "normal mode". Binding margin copy mode selection display LE
D 143 is turned off, and the automatic reduction mode selection display LED 144 is turned on (step 5471).
, 472). The display of the magnification selection keys 67 to 70 is restored (step 5473), and the copy magnification memory is restored (step 5474). The binding margin amount (=0) and the copy magnification are transmitted to the CPU 2 (steps 5475, 476).

Restore copy magnification display 118 (step 5477)
.

<e-7-10> Subroutine for introducing and canceling Anamorphism FIGS. 30 and 31 show subroutines related to Anamorphic control. The Anamo introduction routine 5333 (Figure 30) is as follows:
This is a subroutine for switching from "normal mode" to "anamorphic copy mode". Turn on the Anamocopy mode selection display LED 136 (Step S4g+), and select the selected magnification key display LED 132 to 135, 13.
9 to 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 (step 5483).
゜3484'). Next, calculate the copy magnification x analog ratio (step 5485), and send the value to the CPU 2 as the scanner speed (step 5486). As a result, scanning is performed at a scanning speed calculated based on the original magnification and the specified analog ratio.

The Anamo release routine (FIG. 31) is a subroutine for switching between the "Anamo copy mode" and the "normal mode". Anamo copy mode selection display LED 136
Step 5491) to turn off the light, Anamo introduction routine (
The display and copy magnification of the select magnification key memorized in Fig. 30) is restored (steps 5492 and 5493).
. Also, send the CPU 2 the copy ratio (step 54).
94).

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

In this routine, (paper length - binding margin) ÷ (vapor length x copy magnification) is calculated (step 850!
~S 503).

<e-8> 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 551)
4) 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. When the display mode changeover switch 412 is on, the display mode of the display 121 in S3 is upper and middle of the three-stage paper feeding unit 1O00.

This mode displays the lower paper feed slot. On the other hand, when it is off, the paper one type set switch 10+5,101
6; 1025, 1026; 1035°1036
This mode displays the paper type set by .

When the display mode changeover switch 412 is on (step 5521), first, S1, S2. After turning off the display 121 of S3 (step 5522), if the upper stage paper feed of the three-stage paper feed unit is selected (step S523)
), Sl (step 5524), and in the case of middle paper feeding (
Step S 525), S2 (Step 9526),
In the case of lower paper feeding (step 5527), S3 is turned on (step 8528).

If the display mode selector switch 412 is off,
Since this is the mode to display the paper type, first select Sl, S.
2. After turning off the S3 display (step 5531), if the upper stage of the three-stage paper feeding unit is being fed, (step 5532)
), one type of paper set switch-1-1015, 101
By the combination of 6 (steps 8533 to 535),
In the case of the middle paper feed (step 5541), the combination of the paper cover set switch 1025.1026 is used (steps 6542 to 544), and in the case of the sketch paper unit (step 5551), the combination of the paper one type set switch 1035.1036. (Step 5552
~5554), Sl, S2., respectively. Display S3 (steps 8536-538, 5545-547, 55)
55-557).

<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 S563). If it is on, the door display 106 is turned off (step S562).

Next, when the paper feed port of the three-tier paper feed unit 1000 is selected (step 5564), a signal is sent from the CPU 4 indicating that the docking detection switch 1002 is off (the three-tier paper feed unit is away from the main body). When entering (step 5565), step S turns on the door display 106.
566), and lights up the monitor LED I24 (step 5567). That is, the three-stage paper feeding unit in the monitor 123 is turned on. Also, copying is prohibited (step 5568). Even if the three-stage paper feeding unit is not selected (step 5564), or even if it is selected, if the docking detection switch 1002 is on (step 9565), the door display 106 and monitor display LED 124 are turned off. (Step 9569,5
70).

<e-8-a> 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 monochrome color copying, when a color developer is set, the sticker of the developer is shown through a window in the front door of the copying machine main body l,
Color display on the operation panel (Japanese Patent Laid-Open No. 59-5386)
Publication No. 7). However, the former allows outside light to enter through the front door window, and the latter is expensive.

By the way, when mainly performing black copying, the user can prevent erroneous copying by simply displaying whether or not it is black copying. Also, this method is inexpensive.

FIG. 36 shows the color toner display routine 5513.

When the detection switch 411 is turned on by the magnet set only in the color toner developer (regardless of color) 6 (step 5581), the color toner display 1
17 is turned on (step S582). 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 145 is on,
That is, when in book copy mode (step 5591),
If the selected paper is other than A4 landscape or B5 landscape (steps 5592 and 593), book copying is possible, but the copied image is incorrect (book spreads must be horizontal (original glass). Max of
(420mm), so if you print A4 vertically, part of another page will be visible on one copy. ), the book warning display 109 is turned on (step 5595).

The light turns off when the book copy is not being performed and when the book copy can be performed correctly in A4 horizontal and B5 horizontal (step S5).
94).

<e-8-5> Anamo Warning Display FIG. 38 shows the Anamo warning display routine 5515. When the Anamo copy mode selection display LED 136 is lit, that is, when the Anamo copy mode is selected (Step 5)
601), the selected Anamo rate is 95% to 10
If it is other than 5% (step S602), the resolution of the image will deteriorate considerably and characters will become unreadable, so the Anamo warning display +10 should be turned on.Step S603
), it does not light up when it is 95% to 105%.

(f) Operation of optical system Figure 39 (A), (B) to Figure 42 (A), (B) are schematic flowcharts of the program of CPU2 (scanner, lens control CPU) that controls the operation of the optical system. shows. In the main routine (FIG. 39), after initial settings are made (step 5611), an internal timer is started (step 5612). Next, lens control (step 5613, details shown in FIG. 41) and scanner control (step 5614, details shown in FIG. 42) are performed. When the internal timer determines that the l routine has ended (step 5615) ), the process returns to step 5612.

As shown in FIG. 39(B), when there is an interrupt from cput (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 5623). When Anamo copy mode select display LE0136 is lit (step 562
1), that is, when in "Anamo copy mode" (Anamo copy mode in this embodiment is a method in which the lens is fixed at the normal copy magnification position and the magnification is varied in the scan direction by changing the scan speed). , the lens is not moved to the magnification position sent from CPU 1, but is moved to the same magnification position (step S622).

FIG. 41 shows the scanner control routine 5614. Book copy mode selection display LED 145
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 side A scanning is being performed (step S632).
), perform normal scanner control. That is, when the scanner leaves the fixed scanner position 5W (SW500) (step S633), 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 the timer T (step S 636), the timing signal is set to "low" (step S 637), and the scan length timer is returned?
-(Sta!P!Q R9R)
” and the return signal to “B” (step 5639).
). In the case of book B side scanning (step 5641)
, after scanning the paper length x magnification (step 56)
42), perform the same processing as above (steps 8643 to 6).
48). However, if the scanner reaches the longest scan (420aon) before the scan length timer expires, the scan ends there (step 5649) and returns are started.

(g) ADF operation Figure 42 (A) and (B) show the CP that controls the ADF 300.
A schematic flowchart of U3 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 S652).

Next, document control (step 5653), document size aspect ratio (step 5654), 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 l 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 counted. ) Furthermore, as shown in FIG. 42(B), data communication with the CPUI (step S658) is performed by an interrupt routine, regardless of the main routine, in response to an interrupt request from CPtJl (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 5661), when the ADF start signal from the CPU becomes "B" (step 5662), or
When the document feed flag becomes "BI" (step S663)
, after setting the document feed flag to “0°” (step 5664
), the conveyor belt motor 301 is turned on, and the document feed motor 302 is turned on (step 5665).

Next, processing is performed in the document feeding processing routine (step S666), and when scanning for the set number of sheets is completed (step 5667), the scanning end flag is set to "bi" (scanning 566B).

When the scan end flag is “B” (step 8669),
Set the scan end flag to “0” Step S670
), performs the document ejection 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 9681), flag K is set to "1" and timer A is set.
Start I (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 then the next document. A timer value is set until the time comes.

Next, when the flag K is "B" (step 5683), when the OFF edge of the document feed sensor 310 comes, that is, the trailing edge of the document is detected (step 8684), the flag K is set to "B".
0” and start timer A2 (step S
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 on the document glass.

When timer A1 ends (step 5691), document feed motor 302 is stopped (step 5692). When timer A2 ends (step 5693), the conveyor belt motor 301 is stopped (step 5694), and CP
Send original position signal to tJl (step S 695)
.

FIG. 45 shows the document discharge processing routine S671. 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 Rotate (Step S)
703), timer pcxi-1+Rokuno 1L (1*,
, ) Q 7 n A ) b12-B is set for the time during which the original (in the longest case) on the original glass can be ejected. When timer B ends (step 5705), the conveyor belt motor 301 is turned off (step 5706).

FIG. 46 shows the document size detection routine. When the document detection sensor 311 turns ON (step 5711), timer DU is started (step 5712). Next, when the OFF edge of the document detection sensor 311, that is, the trailing edge of the document passes (step 5713). The timer DU is stopped (step 5714), and the value obtained by multiplying the current value by the document conveyance speed, 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 5716
), the document size is determined to be 85 horizontal.Step 5
717), if it is less than 2 SO (+nm) (step 5718), it is determined that it is A4 horizontal.Step 57
19). 257 (mm) or less (step S
720), it is determined that it is B5 vertical, step 5721
), 297 (n+n+) or less (step 57
22), it is determined that the size is A4 vertical, step S 723
), if it is less than or equal to 364 (mn+) (step 5724
), B4, step 5725), 364
(mm), it is determined that the size is A3 (step 5726).

(Effects of the Invention) According to the present invention, the lighting content of the display can be changed according to the user's usage method, thereby making it easier to use.

Furthermore, since the display is shared, the display cost is reduced.

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 analogue copy mode. FIG. 1θ 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. 113 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 a subroutine of binding margin copy mode select key processing. FIG. 22 is a flowchart of a subroutine for analog copy mode select key processing. FIG. 23 is a flowchart of a subroutine for cassette select key processing. FIG. 24 is a flowchart of a paper size changing subroutine. FIG. 25 is a flowchart of a subroutine for book copy mode select key processing. FIG. 26 is a flowchart of a subroutine for automatic exposure key processing. FIG. 27 is a flowchart of a subroutine for introducing a binding margin. FIG. 28 is a flowchart of a subroutine for introducing binding margin reduction. FIG. 29 is a flowchart of a binding margin cancellation subroutine. FIG. 30 is a flowchart of a subroutine for introducing Anamo. FIG. 31 is a flowchart of a subroutine for canceling Anamo. FIG. 32 is a flowchart of the automatic reduction magnification calculation subroutine. FIG. 33 is a flowchart of a display processing subroutine. FIG. 34 is a flowchart of a subroutine for displaying one type of paper. FIG. 35 is a flowchart of the door display subroutine. FIG. 36 is a flowchart of a color toner display subroutine. FIG. 37 is a flowchart of a book warning display subroutine. FIG. 38 is a flowchart of a subroutine for displaying an Anamo warning. FIGS. 39(A) and 39(B) are flowcharts of the main routine of the program of the microprocessor CPU2 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 (80F).
) 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 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 main body, 2... Photosensitive drum, 11...
・Original glass, 12...Exposure lens, 16...Variable magnification lens, Print button to start copying, 51~
60...Numeric keypad, 61...Interrupt key, 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 for manual exposure, 65. ...Exposure amount up key during manual exposure, 66...Paper feed slot selection key, 67-70
・・・Each copy magnification selection key for normal size, 2 steps of fixed reduction, and 1 step of 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 unit using a fluorescent display tube, 101 . . 3-digit display segment for displaying number of copies, etc., 102 . . . Display indicating that the numerical value on display 101 indicates the Anamo ratio percentage, 103...Display indicating that the numerical value on display 101 indicates binding substitution in units of intervals, 10B.
... Interrupt copying display, 109... Book copy warning, 110... Anamo copy! Is cow 111.0. Paper Enbuteno Harm - 109...Manual copy display, 113...Exposure mode (automatic exposure or manual)
Display, 114... Exposure step display, 117...
Color toner display, 118...Copy magnification display, 12
0...Paper size display, 12I...One type of paper display, 130...Overprint paper selection display LED, 13
1...Drawing paper selection display LED, 132-135.
...Magnification key selection display LED, 136... Anamo copy mode selection display LED, 143... Binding margin copy mode selection display LED, +4'4... Binding margin production acid and automatic reduction mode selection display LED, 14
5...Book copy mode selection display LED, 30
0... Automatic document feeder (ADF), 310... Document detection sensor, 410... Manual feed door opening/closing detection switch, 412... Display mode changeover switch, 414, 41
5...Automatic exposure median value setting switch, 1000...
Three-stage paper feeding unit, 1002... Three-stage paper feeding unit attachment/detachment detection switch, SEI, SF3... Manual paper feeding detection switch. Patent applicant Minolta Camera Co., Ltd. Representative
Person Patent attorney Aoyama Ao and 2 others Figure 5
Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 27 Figure 28 Figure 29 Figure 30
31st prisoner Figure 37 Figure 38 Figure 42 (A) (B) Figure 44 Yan 45 Figure 46

Claims (1)

[Claims] (1) A plurality of paper feed ports for supplying copy paper, a type detection means for detecting the type of copy paper to be fed, and a paper feed port selection means for selecting a paper feed port for supplying copy paper; a multi-stage display means for displaying the status of the paper, and an input for switching the display content of the display means between the type of copy paper detected by the type detection means and the paper feed slot selected by the paper feed slot selection means. An electrophotographic copying machine comprising a switching means.