JPS61292663A - Electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To make copying determining paper size that can contain a partial image perfectly automatically by providing a device that feeds paper of optimum size and makes control of copying to transfer a partial image of an original formed on a photosensitive body on the paper. CONSTITUTION:The machine is provided with a device that irradiates light partially on a charged area on a photosensitive body to form an image of only a part of an original. The machine includes a device that designates an area of the original to be copied partially, a device to select magnification of copying used and a device that calculates optimum paper size from the size of designated area of the original and selected magnification of copying. Further, it is provided with a device that controls copying to feed paper of optimum size and transfer an image of a part of the original on the paper. Thereby, a CPU selects the minimum size of paper that can contain picture image area copied by the magnification automatically from the size of edited picture image area and selected magnification, and a user is freed from troublesome work of obtaining paper size to be used by calculation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrophotographic copying machine in which a partially copied image can be shifted on copy paper.

JL Isui - The so-called partial copying technique, which copies only a part of a manuscript, is
For example, JP-A-57-41671, JP-A-57-5
This is disclosed in Japanese Patent No. 6859, and is basically carried out by irradiating light onto a charged area on the photoreceptor other than the portion to be copied.

However, with conventional copying machines that can make partial copies, it is difficult to determine the size of paper that will completely fit the specified area of the original when copying at the desired copying magnification. The image size was determined either by intuition or by hand calculation based on the size and magnification of the document area. Such a method is uncertain and complicated, and this situation becomes even more serious in the case of copying machines that have been adopted in recent years, in which the magnification can be changed virtually steplessly.

The present invention for printing images was made in view of these points. Once the area of the original and the copying magnification are determined, the paper size that completely fits the partial image is automatically determined based on these conditions. The object of the present invention is to provide an electrophotographic copying machine that performs copying.

In order to achieve the above object, the copying machine of the present invention is equipped with a mechanism for automatically calculating and specifying a paper size in which a partial image can be completely accommodated based on a specified area of a document and a selected copying magnification. There is.

Note that the designated area of the document is not necessarily located at the starting edge of the exposure surface (registration reference edge) on the document, but rather in the center, etc. On the other hand, copy paper is located between the registration reference edge and the paper. It is fed so that the tips of the two are aligned. Therefore, if the area is not aligned with the resist reference edge, the paper feeding described above will result in the partial image not being able to fit on the paper even if the size is compatible. For this purpose, the copying machine of the present invention controls the paper feeding timing in accordance with the distance between the region of the original to be partially copied and the registration reference edge, so that the partial image is exactly placed on the paper.

The copying machine according to the embodiment of the present invention described below performs various automatic editing operations by combining the following mechanisms.

A mechanism that specifies the part of the document that you want to copy, erases the area other than the specified area, and copies it. This mechanism is also called a partial copying mechanism ν1
, includes a mechanism for specifying an area, and a fi mechanism for erasing electrostatic latent images other than the specified area 177.
J: Yes, you can specify the block of the necessary part. Also, erase 8! The structure includes a plurality of light emitting elements arranged facing the photoreceptor in the latent image forming section, and unnecessary parts are erased by selectively emitting light from the light emitting elements.

L-1111 A mechanism that copies a specified area of a document by changing the position of the copy paper. (hereinafter referred to as the orthogonal direction).
This is done by il.

That is, the area shift in the feeding direction is performed by controlling the on/off state of the timing roller to advance or delay the paper relative to the image on the photoreceptor. Further, to shift the area in the orthogonal direction, paper is manually fed and the manual paper feeding table is shifted in the orthogonal direction, so that the paper is shifted and conveyed in the orthogonal direction to the image on the photoreceptor. The above mechanism is shown in the embodiment, but the orthogonal direction shift also involves shifting the document itself in the orthogonal direction, or shifting the projection lens in the orthogonal direction to project the projected image onto a different position on the photoreceptor. It can also be done using techniques such as:

1111 A mechanism that automatically feeds the original onto the original loading surface, ejects it after copying is completed, and in the case of a double-sided original, reverses and feeds the original for copying the second side. When this mechanism is constructed separately from the copying machine, it is called an automatic document feeder (hereinafter referred to as ADF), and is also constructed separately in the embodiments of the present invention. In addition, in this embodiment, when performing automatic editing to easily specify areas on a document, place the document face up and use the ADF.
The paper is inverted inside the paper and positioned on the document placement surface.

A mechanism that inverts or returns the copy paper that has been copied once completed to the paper feed path. , swap the leading edge and trailing edge of the copy paper #12
A reversing section whose surface is the copying side, a first switching section that switches the feeding of the paper between the paper output tray and the circulation path, and a second switching section that switches whether the paper is circulated through the reversing section or circulated as it is. have.

A mechanism that calculates the optimal magnification to fit the specified area on the paper based on the size of the specified area of the original and the selected paper size, and automatically sets the magnification. Regarding a copying machine that automatically calculates and sets the magnification from the original size and paper size Since it is not nearly constant like the original size,
The vertical magnification and the horizontal magnification are calculated respectively, and the smaller of them is selected to ensure that the image in the designated area will fit on the copy paper.

The mechanism searches for a paper size that fits the specified area from the size of the specified area of the document and the selected magnification, and automatically selects the paper feeding section if there is a paper feeding section that stores the matching paper size.

By combining the above mechanisms, the copying machine according to the embodiment of the present invention can perform three types of 1IAlk operations, conveniently named simple editing, composite editing, and minute main, in addition to normal copying.

Simple editing refers to editing and copying one partial image to a desired position on one sheet of copy paper.

Composite editing refers to editing and copying two partial images at desired positions on a sheet of copy paper in an arbitrary positional relationship.

The divided iI collection refers to editing and copying two partial images on one sheet of original to desired positions on two sheets of copy paper or on each of the front and back sides of one sheet of copy paper.

The size of the above-mentioned partial images can be arbitrarily changed by setting the magnification, and it goes without saying that the size of the copy paper used can also be selected.

In addition, if you only need to fit the specified partial image on the paper in simple editing and split editing, you can easily fit the partial image to almost the entire area of the paper by using the automatic editing magnification selection mechanism or the automatic editing paper selection mechanism. You can store images. In other words, when manually selecting the magnification and paper size, the user must calculate the magnification based on the size of the partial image and the paper size, or calculate the usable paper size from the size of the partial image and the magnification. The work is very tedious, but by using the above mechanism in combination, the calculations are automatically performed and are very convenient.

In composite editing and division editing, two partial images are combined or divided, so two storage means are provided for specifying the area of each partial image, and data regarding the two partial images are stored in each storage means. Editing and copying is performed after the data is memorized.

The details will be described later.

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

FIG. 1 shows an example of a copying machine according to the present invention.A photoconductor drum 1 that can be rotated in a counterclockwise direction is disposed approximately at the center of the main body of the copying machine, and a main eraser lamp 2 is arranged around the photoconductor drum 1. , sub charger 3, supply eraser lamp 4,
Main charging charter 5, inter-image eraser lamp 400,
A developing device 6, a copy charger 7, a copy paper separation charger 8, and a blade type cleaning device 9 are provided.

The photoreceptor drum 1 has a photoreceptor layer provided on its surface, and this photoreceptor is sensitized and charged by passing through the eraser 2 and 4 and the charger 3.5.
receives image exposure from.

The optical system 10 is installed below the document lath 16 so as to be able to scan the document image, and includes a light source (not shown) and a movable mirror 11.
．． 12, 13, a lens 14, and a mirror 15. The light source, the movable mirror 11, moves to the left at a speed of (v/s) (where the action is the copying magnification) relative to the circumferential speed (V) of the photosensitive drum 1 (constant regardless of the magnification or variable magnification). The movable mirror 12.13 is driven by a DC motor M3 to move to the left at a speed of (v/2m). When changing the copying magnification, the lens 14 moves on the optical path and the mirror 15 moves and swings. 5W50 is a switch that determines the home position of the scanning system, and 5W51 is a switch that determines the scanning system's registration position. This is a switch to obtain timing.

On the other hand, there are paper feed rows 221 on the left side of the copying machine body.
．． A paper feed section 20.22 equipped with 23 is installed, and the copy paper conveyance path is provided with a pair of rollers 24, 25 and a pair of timing rollers 26.
, a conveyor belt 2, a fixing device 28, and a pair of discharge rollers Z9.

120-123 is paper code Y (size) of A paper feed section
These are detection switches, and 124 to 127 are paper code detection switches for the B## section.

Before the timing roller pair 26, there is a timing roller front sensor SE for controlling the timing roller pair 26.
1 is provided.

A manual paper feed section 40 is provided above the A paper feed section, and the manually fed paper is merged from a roller pair 41 to a roller pair 24 downstream of the A paper feed section. A sensor SE2 for detecting manually fed paper is provided in front of the roller pair 41, and the manual paper feeding section 40 is provided so that it can be opened and closed with respect to the main body, so that the main body can be 1m long! ! ! A sensor SE3 is installed on the surface of the manual paper feed section W4Il! ! ! Detect.

As shown in FIGS. 2 and 3, the manual paper feeding unit 40 is configured to be able to shift left and right with respect to the feeding direction, and the amount of shift from the reference position (8 in FIG. γri 41
The pulse disk 43 is rotated via the pinion 42, and the amount of rotation is detected by the sensor 44 (Figure 13B).The upper surface of the manual paper feed section 40 has a fixed plate 45 and a movable plate 45. An ID plate 46 is provided to regulate the position of manually fed paper.

A duplex unit 250 for duplex and composite copying is provided in the lower part of the main body and in the vgA section.

22,) 250 moves the first switching side 251 using the discharge switching clutch CL100 and moves the first switching side 251 using the composite switching clutch CL101 depending on the case of normal single-sided copying, double-sided copying, or composite copying. 2. By moving the switching id 252, the paper passing path of the copy paper is switched. For double-sided copying, the copy paper that has been copied on one side is temporarily held in the intermediate tray 253,
When the reverse copy start signal is issued, the intermediate tray 25
3 is rotated to the position shown by the broken line by the tray 7 pull-down clutch CL 102, and the copy paper is transferred to the refeeding row 2254.
into the copying machine. As a result, the leading and trailing ends of the paper are reversed, and the front and back sides of the fed paper are switched.

On the other hand, in the case of composite copying, the paper is directly fed into the main body of the copying machine by the clutch CL 101 without going through the intermediate tray 253, and the next copy is made on the same surface where the previous copy was made. Note that the copy paper discharged from the combining unit 250 is sent to a sorter 280.

The automatic document feeder (ADF) 300 will be explained with reference to FIG. The ADF consists of a document feeding section 301, a transport section 302, and a reversing section 303, and the document feeding section 301 has an area plate 311 and a document feeding section a.
The area board 311 is made of a transparent material, and the squares dividing the areas and the area number are printed on the top surface of the area board 311. The conveying unit 302 is a document loading rack 16.
It covers the original conveyor belt 320 and stops the original at a predetermined position on the original placing glass 16, and also directs the original to the paper ejection tray 321, an ejection path for ejecting the original, and the reversing unit 303. It has a switching id 322 for switching between the transport path and the transport path. In addition, the document sensor SE6 is placed between the document feeding section 301 and the conveyance belt 320, and the document sensor S is placed between the switching side 322 and the reversing section 303.
ET, and the conveyance of the document is controlled by signals from both sensors. The reversing unit 303 reverses the original and transfers it to the transport unit 3.
This is to return to 02, and in the case of double-sided originals, reverse the original and! Used for certain types of copying.

In editing copying, the user 1 turns the original face-up, specifies an area, and sends it to the ADF as is.In order to use a convenient format, the original set face-up is first sent to the reversing unit 302 and then reversed. This is then positioned on the document placement glass 16.

Further, as shown in FIG. 4, the top surface of the ADF includes a first operation panel 330, a second operation panel 360, and a display section 380 that displays which direction the document should be set.

FIG. 5 shows an inter-image eraser 400. This inter-image eraser 400 has a large number of light emitting elements arranged in a row, and by selectively emitting light from each light emitting element, the area other than the designated area is exposed to light. Erases electrostatic latent images on the body.

FIG. 6 shows the arrangement of each operation key on the operation panel of the copying machine. , respectively 1.2.・
..., numeric keys 80 to 89 corresponding to numerical values 9 and 0, and an interrupt key 90 for specifying interrupt copying. A clear/stop key 91, a key for specifying the copy paper loaded in multiple stages by size (-selection key 92, up and down keys 93, 94 for changing/specifying the copy image density step by step) Key group 95 related to copy magnification setting
~103 etc. are arranged.

Numerical display device) 2 is a 4-digit 7-segment) LED 72a
~72d.

The first magnification setting key $95.96.97.98 is arranged for the purpose of arbitrarily setting the magnification, and when the key 99 for switching the first magnification setting mode is operated, the copying machine is controlled. When any key is operated while the mode is switched to the first magnification setting mode, the numerical value inputted by the numeric keypad and displayed on the display device 72 is
The copy magnification is stored in the memory corresponding to the activated key.

99a is an indicator light indicating that the arbitrary magnification setting mode is set.

Second magnification setting key 11F1001101.102.1
03 has a predetermined copying magnification set in its corresponding memory in advance, so that the copying operation can be executed based on the preset numerical value without having to set the numerical value as in the case of the first key group. is taken into account. Therefore, the preset copying magnification is, for example, a magnification that is considered to be commonly used in the vanguard at the time of shipment from the factory. In this way, the first group of keys allows the user to freely set the required copying magnification, and the second group of keys allows the user to freely set the copying magnification required, and the second group of keys is used for commonly used copies, such as A4 for domestic specifications.
→B5. B4→A4. A, 3 → A4. Or A4 → A
Function 1 is given a different role so that the magnification corresponding to 3rd grade is preset. However, since the preset value for the second key group is a general or calculated copy magnification, the actual copy magnification may differ slightly from that due to mechanical or design errors. It may be different. For example, even if you select the same size (×1), the actual size is (Xl, 004) or (Xo, 996).
) may have doubled. In such a case, the control mode of the copying machine is switched to the second magnification setting mode by operating the second magnification setting mode switching key 104 shown in FIG. It is possible to set arbitrary numerical values in the memory corresponding to each of the keys 100 to 103 by simple operations to obtain a desired copy magnification. Specifically, a numerical value of 1.002 or 0.998 may be set for the same size key.

Figure 7.8.9 shows the first operation panel 330° of the ADF and the second
A rubbing panel 360 and a display section 380 are shown.

The first fabrication panel 330 in FIG. 7A is a panel for instructing areas when performing manuscript editing and copy editing.
A graphic display section 331 that displays a designated area, a number display section 332 that displays a document area number, an up key 333 and a down key 334 that increase or decrease the document area number, and a set for setting the selected area number. It is provided with a key 335 and shift keys 336 and 337 for specifying a copy area.

The graphic display unit 331 has, for example, arranged micro LCDs in a matrix and displays graphics by selectively turning them on and off. FIG. Area board 31
The squares and area numbers corresponding to 1 are displayed. When the document area is designated as described later, the designated area is displayed as shown in FIG. 7B. On the other hand, when specifying a copy area, the display screen changes as shown in FIG. 7C. In FIG. 7C, a frame line 338 indicating the paper size and a partial image 339 specified by the document area specification are displayed to show where they will be positioned on the paper if they are copied as they are. It corresponds to the paper conveyance direction (feeding direction), and by operating shift keys 336 and 337, the partial image on the display screen moves left and right (feeding direction). The seventh figure shows a state in which the partial image is shifted to the left from the state shown in FIG. 7C by operating the shift key 336. This shift amount is stored as will be described later, and the paper conveyance timing is changed to change the position of the partial image on the copy paper to a specified position.

The above is a case in which the position of the partial image is shifted in the feeding direction, but in the case of shifting in the orthogonal direction, the manual sheet feeding section 40 shown in FIG. 2t3 is used. 111, the manual paper feed section 40 is shifted in the orthogonal direction. This shift amount is detected by the pulse disk 43 and sensor 44, and the frame line indicating the paper size on the graphic display section 331 is changed to
Shift it like this.

Therefore, the user can shift the manual paper feed section 40 to obtain a desired positional relationship while looking at the relationship between the partial image displayed on the graphic display section 331 and the main line.

In the case of cassette paper feeding, since the paper size is different, only the frame line of the selected paper size is displayed as shown in FIG. 7F.

The second operation panel 360 in FIG. 8 has a group of keys and a display lamp for memorizing the selection of various modes and the manner of editing and copying by combining various modes. Reference numeral 361 is a collection Ii selection key, and the lamp L1 consisting of an LED next to it indicates the original editing mode, and the lamp L2 indicates the copy editing mode by lighting it. The modes are sequentially switched by pressing the edit select key 361, and when both lamps are turned off, the mode becomes the normal copy mode.

The keys and lamps arranged in 4 rows and 2 columns at the center of the panel are used to select a combination of original and copy types.

The left column specifies the type of document, and from the top press key 3.
62 is for single-sided one-sheet originals, key 363 is one-sided for two-sheet originals,
The key 364 corresponds to double-sided originals, the key 365 corresponds to book originals, and the lamps T, 3. L4゜L5. L6
lights up in response to the key pressed.

Similarly, the right column specifies the type of copy; from the top, key 366 is for one-sided copy, key 367 is for one-sided copy, and key 367 is for one-sided copy.
The key 368 corresponds to double-sided copying, the key 369 corresponds to composite copying, and the lamp L7. L
8. L9. LIO is provided.

The key 370 at the bottom of the panel is a mode select key, which includes automatic paper selection mode indicated by lamp Lll, automatic magnification selection mode indicated by lamp L12,
Manual mode indicated by lamp L13, lamp L1
Edit paper selection mode, indicated by 4, lamp L1
The editing magnification selection mode indicated by 5 is switched and selected by successively pressing mode select keys 3 and 0.

The key 371 at the upper right of the panel is a mode memory key, which is used to store up to two types of editing modes set by the combination of the editing selection, original and copy combination selection, and mode selection described above. This is the key. Two lamps L16°Li2 are provided next to this key 3F1 to display the two types of memory, and when the edit select key 361 is pressed to select the original editing state, the upper First manuscript (A manuscript)
When the mode memory key 371 is pressed after setting the editing mode, the set mode is stored in the memory, and then the lamp L18 is turned off, and the lamp L17 is turned on and the second original ( The editing mode setting for B original) is now accepted.

FIG. 9 shows the display section 380, ! When in i-collection mode, indicator L indicates that the original should be set face up.
18 is lit, and in the normal mode, an indicator L19 indicating that the original is set face down is lit. This is because in editing mode, the document area is specified with the document facing up, so the document can be fed as is after specifying the area.On the other hand, it is possible to set the document face up even when copying normally. In this case, the original must be reversed by the reversing unit 303, so the original is usually set face down during copying in order to shorten the copying time and reduce damage to the original. Indicator L18.
Li2 is provided to clearly indicate this to the user.

10.11.12 shows a control circuit used in the copying machine according to the present invention, in which the first CPU 201 is connected to the second CPU U2O5 (FIG. 10) via the interrupt terminal INT and the data input/output terminal Sin+5ouL. 3rd CPU20
3 (Figure 11) and the fourth CPU (Figure 12).

The first CPU 201 is an inter-image eraser controller 401
, a signal for controlling the inter-image eraser 400 is output. Furthermore, 205 is a battery-backed R
AM, 206 is Switchmad-J7x, and 207 is Defoog. The output terminals A1 to A7 are connected to drive switching transistors (not shown) for the main motor M1, developing motor M2, timing roller clutch CLI, main paper feed clutch CL2, sketch paper clutch CL3, charger 5, and transfer charger 7, respectively. Connected.

Various data for copying operation control is written in the RAM 205 or shifted from the ROM in the CPU and stored therein, and the selection keys 100 to 103
Corresponding to the memory Ql, Q2゜Q3. For example, when the selection key 100 is turned on, the magnification displayed on the display device 72 is written to or read out from the memory Q1, and when the selection key 101 is turned on, the magnification is written to the memory Q2. It is designed to be written or read out.

Also, for selection keys 95 to 98, memory Q5゜Q6
．． Q7. Q8 is provided in the same manner as described above, and for example, when the selection key 95 is turned on, the magnification is written to or read from the memory Q5.
Table 1 shows codes corresponding to vapor sizes.

The second CPU 202 is in charge of controlling the optical system, and 208 is a drive circuit for the DC motor M3 for scanning the original;
209 is a drive circuit for a stepping motor M4 for zooming. Also, switch 5w5o.

5W51 is a switch arranged in the scanning path of the optical system and operated by the optical system.

The third CPtJ203 in Fig. 11 is in charge of controlling the AI)F, and 390 is the switch of the first and second operation panels.
391 is each LED lamp of the operation panel, 392 is a graphic controller for controlling the graphic display section 331, and 332 is an area number display section. 3rd CPU 20:l input/output terminal 7-B
From l to B7, input signal from document sensor SE6゜SET, document feed clutch CL301, ADF main motor, output 3 to ejection reversal switching clutch CL302.
No., indicator Li2. of display section 380. Li2
Output signals are input and output to and from the input and output terminals, respectively.

#54cPU204 in FIG. 12 is in charge of controlling the duplex unit, and output terminals C1 to C5 output the discharge switching clutch CL100. Synthetic switching clutch 101° Tray amplifier down clutch CL 102. Control signals for the paper refeed clutch CL 103 and the main motor of the duplex unit are output, respectively. Although not shown in the drawings, a plurality of sensors are arranged in the paper path of the duplex unit, and the fourth CPU 204 outputs the control signal based on paper detection signals from these sensors. .

Next, control according to the present invention will be explained using a 70-chart. 13 to 19 are 70-charts related to the first CPU, and tpJ20.21 is a 70-chart related to the second CPU.
Figures 22-29 are flowcharts for the third CPU, Figures 30 and 31 are flowcharts for the fourth CPU.
It is a chart.

FIG. 13 shows the main routine of the first CPU, in which step #1. In step #2, initial settings are performed when the initial switch is turned on, and in step #3, a routine timer that defines the time for one routine is set. Next, in step #4, it is determined whether copying is in progress.

If copying is in progress at step #4, the process moves to step #8, but if NO, the subroutine for setting the magnification, the subroutine for magnification selection, and the subroutine for moving the manual feed tray are processed at steps #5t #6*#7.

The magnification setting is performed using keys 95 to 103 on the operation panel of the copying machine, numeric keys 80 to 89, and key 104 inside the copying machine, and the magnification is stored in Q1 to Q8 of the memory 203. - By turning on any one of -103, the stored magnification is called from the corresponding memory area, and the lens position and scanning speed are set according to this magnification. This process is well known, for example, in Japanese Patent Laid-Open No. 59-111140, and will therefore be omitted.

Step #7 is a subroutine related to control when shifting the partial image on the copy paper in the orthogonal direction, and will be explained with reference to FIG.

The following step #8 is a subroutine related to the control of the inter-image eraser for creating partial images in manuscript editing.
It will be explained in detail in &15 and 16.

Step #9 shows control when the automatic magnification selection mode or the automatic paper selection mode is selected during normal copying, and since this control is known from the above-mentioned Japanese Patent Laid-Open No. 59-111140, the description thereof will be omitted.

Step #10 is a subroutine showing control when the editing paper selection mode or the editing magnification selection mode is selected, and will be described in detail in FIG. 17.

The step well 11 is a subroutine for controlling the timing low 226 to shift the partial image in the feeding direction of the copy paper 1, and will be described in detail in FIG.

Step #12 is a subroutine showing control of the copy operation, and will be explained in detail in FIG. 19.

Finally, in consideration of the end of the routine timer set in step #13, the process returns to step #3. 5 Communication with other CPtJs is performed by interrupt processing.

In the manual feed tray moving subroutine of FIG. 14, it is monitored whether the manual feed tray 40 has been moved in step #100,
While moving, in step #101, the number of pulses for the shift amount by the pulse disk 43 and sensor 44 is set as ff13cl'.
Send to U2O5. In response to this, the third CPU 203 shifts the frame line display on the graphic display section.

In the image-to-image erase control subroutine shown in FIG. 15, when the main motor is turned on in steps #200 to #203, all the erasers constituting the image-to-image eraser are turned on, and all erasers are turned on with the on-second function. Turn off the eraser.

Then, in step #204, it is determined whether it is a normal copy or an edited copy, and in the case of a normal copy, the processes in steps #205 to #208 are carried out, and in the case of an edited copy, the processes are carried out in steps #209 to #215.
The process then returns to the main routine.

In the case of normal copying, when the leading edge of the latent image reaches the inter-image eraser 400 in step #205, the eraser corresponding to the length of the paper or document with the smaller X magnification is turned off in step #206. And step $207. $2
When the rear end of the latent image arrives at step 08, all the erasers are turned on.

On the other hand, in the case of edited copying, step #209.・210
When the leading edge of the latent image is reached, a timer T1 is set to delay the time from the leading edge of the latent image to the first image block. That is, the value obtained by multiplying the value obtained by dividing the distance from the tip end to the first image block by the system speed (photoreceptor circumferential speed ■) is set in the timer T1. And step $
211-# In 213, only the eraser corresponding to the length of the image area multiplied by the magnification is turned off by the end of timer T1, and the distance corresponding to the length of the image area is calculated and set in timer T2. set. The calculation is performed by dividing the image area length by the system speed and multiplying by the magnification. Then step #214. #2
At step 15, the timer T2 ends and all the erasers are turned on.

FIG. 16 schematically shows the creation of partial images using the above-mentioned inter-image erase control.

In the editing automatic copy control subroutine of FIGS. 17A and 17B according to the present invention, step #300. #3
At 01, it is determined whether the automatic editing magnification selection mode or the automatic editing paper selection mode has been selected.

Since this mode setting is performed on the operation panel of the ADF, this determination is made based on the mode signal from the third CPU 203.

If the editing magnification selection mode is selected, first enter the value obtained by dividing the length of the paper used for copying by the document area length into the AL/register in step #302, and then enter the value obtained by dividing the length of the paper used for copying by the document area length, and
In step 3, enter the value obtained by dividing the inside of the paper into the original area into BI/Jister. Here, the document area width is the actual longest length along the scanning direction of the document area DE, as shown by LA in Figure 48, but in the document area, it is not the actual width of the area, but is shown in @Figure 48. As shown in II, when placing the original on the original glass, a reference edge 395 (
It must be noted that this is the width between the edge (hereinafter referred to as the side reference edge) and the green furthest from the side reference edge 395 of the document area DE. This is because if the image is calculated using the actual document area width, the image may not fit on the paper depending on the position of the document area. Then, in step #304, the smaller value of the A or B register value is placed in the C register, and step @305. @3
06, the value of CL/Jister is the minimum magnification of the copying machine (xo, 6
47) If it is smaller, set the minimum magnification value in the C register and execute step $307. $$ 308
If the value of the C register is larger than the maximum magnification (×1°414), the maximum magnification value is set in the C register, and in step #309, the value of the C register is set in the magnification register.

Through the above process, when the editing automatic magnification selection mode is selected, the minimum magnification that allows the partial copy image to completely fit on the copy paper is automatically selected based on the specified original area and the paper size used. .

On the other hand, if the edit automatic paper selection mode is selected,
First, in step #310, the image size is calculated. This image size calculation is shown as a subroutine in FIG. 17B, and in step #320, the document area length LL (see FIG. 48) is multiplied by the specified magnification, and this value is used as the image size. It is said to be tall. In the next step #321, calculation is performed to multiply the document area width L11I (see FIG. 48) by the specified magnification, and this value is taken as the horizontal length of the image. And step #322
These vertical and horizontal lengths are stored in the register as the image size.

Return to the 70-chart in Figure 17A and proceed to the next step #
At step 311, it is determined whether the size of the upper cassette is 1☆ thicker than the image size calculated at step 70- of FIG. 17B. This determination is of course performed both vertically and horizontally, and if the 0 determination is YES, which is determined by whether the image size completely fits on the paper of the size of the upper cassette, a similar determination is made in step #312 regarding the size of the lower cassette. If there is no paper that fits in the lower cassette, select the upper cassette ($314), or if both sets fit, select the smaller size cassette (13315).

On the other hand, if the determination in step 311 is No, it is necessary to determine whether the size of the lower cassette is large enough to contain the image #313 If YES, the lower cassette must be selected #
316), if NO, it is assumed that complete copying is not possible in the current editing automatic paper selection mode, and the mode is changed to manual mode.

Through the above processing, when the editing automatic paper selection mode is selected, a paper size that completely fits the partial copy image is automatically selected based on the designated document area and copy magnification. Note that in both of the above modes, the designated document area is far from the reference edge 396 (hereinafter referred to as front reference edge) with which the front edge of the document on the document placement glass should be aligned, as shown in FIG. In this case, different processing than usual is required for paper feeding, which will be explained in the following explanation of FIG. 18.

FIG. 18 shows a subroutine for controlling the timing roller. As mentioned above, this subroutine controls the timing roller to temporarily advance the paper.
Alternatively, control to shift the position of the image area on the paper in the feeding direction by delaying the normal feeding timing, and control the relationship between the specified document area and the front reference edge when in automatic magnification selection mode or automatic editing paper selection mode. Control is performed to match the designated document area with the paper by delaying the feeding timing by the distance.

It should be noted that before entering this subroutine, the timing roller was first turned on in the copy operation subroutine (FIG. 14).

First, in step #400, it is determined whether the leading edge of the paper has turned on the sensor SE1 located in front of the timing roller 26. If the leading edge of the paper is detected, in the next step #401, the copy area is moved to the first operation panel. 330
It is determined whether the image area has been shifted to the left in the above, or in other words, whether the image area has been shifted toward the rear end in the feed direction, and if YES, a constant value is calculated by dividing the shift amount by the system speed. (the distance between the sensor SEI and the timing loaf divided by the system speed) is added to set the value in the timer I (43402). If there is no left shift, the timing roller is immediately turned off (#403).

Next step $404. In #405, it is determined whether the timer I has ended, and when the timer I has ended, the timing roller is turned off. As a result, when there is a left shift, the paper is stopped after being advanced from the timing roller by a length corresponding to the shift amount.

Next, in step #406, the scanning system determines whether the timing signal is issued after a certain period of time after turning on 5W50,
In either mode, in step #409, the distance Li shown in Figure @48, that is, 70
timer H is set to a value obtained by dividing the distance between the target reference green 396 by the system speed and multiplying by the magnification.

If it is not in either mode, it is determined in step #410 whether the copy area has been shifted to the right on the first operation panel 330, and if YES, the value obtained by dividing the shift amount by the system speed is set to tie + ■. (#411
), in the case of NO, the timing roller is immediately turned on ($412).The end of the timer (2) is determined in step #413, and after its completion, the timing roller is turned on in step #414. Therefore, if the copy area is shifted to the right or if the document area specified in the 11th collection automatic magnification selection mode or editing automatic paper selection mode is far from the front reference edge, the timing roller feeding timing will be different from the normal one. This causes the image area to be shifted towards the leading edge of the paper so that, in the editing mode, the image just fits on the paper.

In steps #415 to #418, it is detected that the trailing edge of the paper has passed the sensor SEI, and a value obtained by dividing the distance from the sensor SEI to the timing roller by the system speed is set in the timer ■, and the timer ■ ends. Turn off the timing roller.
(The following is a blank space) + Proboscis Figure 19 shows a subroutine that controls the copying operation. First steps of the routine #500 to #508
outputs control signals at different timings depending on the combination of manual paper feeding, cassette paper feeding, and whether or not the ADF is used.

First, in step #500, it is determined whether the copy is manual copy or not, that is,
It is determined by the signal from the sensor SE3 that the manual paper feed section 40 has been opened, and if No (in the case of cassette paper feeding), the step 501 checks whether the print switch is on or not. #502
Determine whether or not to use the ADF. If No, set copy start 7 (#503) and move to step #509. If YES, output the ADF start signal (
#504) Move to step #509.

On the other hand, if YES in step #500, Sten 7'#
At 505, it is determined whether the sensor SE2 provided in the manual paper feed slot is on-edge, and if there is an on-edge, the process proceeds to step #50.
Move on to 2. If NO, the use of the ADF is determined in step #506, and if the ADF is used, an original position signal C is output indicating that the original is positioned at a predetermined position on the lath 16. Wait for (@507),
Set copy start flag ($508).

To summarize, when copying starts (turning on the print switch or inserting paper into the manual paper feed slot), when using the ADF, first operate the ADF and set the original, and when the original is set, the copy start flag is activated. and also
If ADF is not used, set the copy start flag immediately.

The above copy start flag is determined in the next step #509, and in step #510 the fin motor, developing motor,
The charging and V-graph chargers and the timing roller are each turned on, timers A and B are set, and the copy start flag is lowered.

In the next steps #511 to #516, a clutch is turned on to transmit driving force to the corresponding paper feed roller depending on whether the upper cassette or the lower cassette is selected or whether paper is fed manually.

Timers A and B set in step #510 are terminated in step #517. (#518,
$520).

When the scanning system starts scanning and turns on the switch 5W51, the second scanning starts after a predetermined time delay.
A timing signal is issued from the CPU 202. Step #521. In $522, timer C is set by this timing signal, and when timer C ends, charging is turned off and the scan signal is set to 0 (#523, $524). This timer C is set depending on the paper size and magnification used. Ru.

On the $2 CPU side, as described later, when the scanning system returns and the localization value signal becomes 1 (I525. #526), the developing motor, transfer chart gloss, and copy 7 lag are turned off in step #527, and timer D is set. be done.

The end of timer D is determined in step #528, and the main motor is turned off ($529).

In the above explanation, it has been described that the operation of the external device is controlled at each step, but in reality, only control signals, flags, etc. are sent inside the microcontroller, and these control signals are sent to the step 7 block #530. ``Ch insects are stopped and output.

Figure 20 shows the second part that controls the scanning system and lens system.
The main routine of CPU 202 is shown. In the figure, the first friend setting is performed at step $1000, the routine timer is set at step #1001, and the routine timer is set at step #1001.
1002. Step 1003 processes the scanner control and lens control subroutines, step 1004 waits for the routine timer to end, and step $
Return to 1001. Note that communication with #5lcPU is performed by interrupt processing.

The scanner control subroutine will be explained with reference to FIG. The lens control subroutine, which moves the lens to a position corresponding to the selected magnification, is omitted because it is the same process as in the prior art.

In the scanner control subroutine in the fIS21 diagram, first, in step #1100, the on-edge of the scan signal is detected and scanning is started (#1101).
, the scan signal is set in step #521 of FIG.

Next, in step #1102, it is determined whether the mode is book mode. The book mode is disclosed, for example, in Japanese Patent Publication No. 57-19427, in which the R2d half page and the second half page of a book spread are separately copied (attempted) while the book is placed on the document placement glass 16. The copying machine according to the present invention enters this mode when a book is selected as the original on the second operation panel, and if a single-sided copy is selected, the specified first or second half page is copied. If you select two-sided, the first half and second half of the page will be copied onto separate sheets of paper, and if you select double-sided, the first half and second half of the page will be copied onto the front and back sides of one sheet of paper. When there is an instruction to compile or synthesize, the Moekushi page and/or the second half page is copied as the specified manuscript according to the instruction contents.

The page size may be input by an appropriate means, or an index movable in the scanning direction may be provided on the side of the document placement rack 16, and this index may be aligned with the binding of the book. The position may also be detected.

Return to the flowchart and step 431103~#11
05 and $1107, when each scan of the first half page or the second half page is finished, the scan is finished, the return is started, and the return signal is turned on.

On the other hand, if you are not in book mode, step 1106
Then, the process in step #1107 is performed after scanning is performed for a total area W determined by the paper size and magnification (paper size/magnification, but if it is larger than the full scan length, the full scan length).

Next, in steps #1108 to #1112, in the case of normal copying and first half Bates copying in book mode, the scanning system turns on the timing signal after a predetermined time delay corresponding to the magnification after turning on 5W51. On the other hand, in the case of the second half of the book mode, the timing signal is turned on after passing the end point of the first half and after a predetermined time delay according to the magnification (
$1113-1115).

In the next steps 1116 to 1118, the return is completed by turning on the switch 5W50 for detecting the home position of the scanning system, the return signal and timing signal are set to "0", and the home position signal is set to "1". The home position signal is set to rOJ except on edge.

Figures 22 to 28 show the 3C which controls the ADF.
In FIG. 22, which is a 70-chart of PU and shows the main routine, the initial setting is performed in step #2000, the routine timer is set in step @2001, and the first operation panel is set in steps $2002 to #2004. 330, the subroutine of the second operation panel 360 and the display section 380 is processed, and step #2005
If the result of the judgment as to whether or not an edited copy is to be made is No, in step 2006, the ejection anti-alignment switching clutch CL 302 is turned off to eject the original to the ejection tray, and then the original feed roll subroutine is processed ( Step #2
007), on the other hand, in the case of editing copy, step I200
8, the 1M collection control subroutine is processed.

Finally, in step $2009, the routine timer ends and the process returns to step @2001. Also, the 1st cP
Communication with U is performed by interrupt processing.

231st Zl: t In 1 a This is a subroutine for controlling the operation panel 330, and first step #21
00 to #2102, the display screen of the graphic display section 331 is switched according to the selected mode. The mode is selected using the N collection select key 36 on the second operation panel 360.
1, the mode signal obtained through communication between the CPUs is determined, and the image li collection screen is displayed when the mode is other than the copy m collection mode. In the case of copy m collection mode, the flow moves to step #2128.

Next, in step $2103, it is determined whether the mode is manual feed mode or cassette mode based on whether the manual feed section 40h is fed.

In the case of cassette mode, first, in step #2104, an effective image area is calculated from the paper size and magnification. Since this calculated effective image area does not necessarily match the area in block units, in step @2105, the maximum area in block units within the effective image area is set as the effective image area, and this is output to the graphic controller.
S24 Display with diagonal lines as shown in Figure A. In addition, as shown in FIG. 24B, 2 of the graphic display section 331
A linear display section may be provided on the side edge, and the length of the line may be changed depending on the size of the effective image area.

In this cassette mode, step #2106,
@ In 2107, up key 33 to specify the original area
3 and the down key 334 are on-edge.

If the 7 key 333 is pressed, step #210B
Increment the image block number with , and if the block number is outside the valid image area, Step 71 # 210
Return to 8. Then, the block number is the maximum (2 in the example).
4), the block number is changed to "rl"(#2109 to #2111).

If the down key 334 is pressed, step $2112
~ In #2115, decrement processing is performed in the same way as in the case of the up key.

In step i$ 2103, if the paper is in manual feed mode, the size of the paper to be fed manually is not known, so all areas are enabled and the block number is incremented by 5 and decremented by 5 for each on-edge of upgun key 33:11.334 (# 2116~l$2121).

The block number set as above is step #
It is displayed on the block number display section 332 in step 2124. Then, when the set key 335 is pressed for the displayed block number (#, 2125), the block number is sent to the graphic controller 392, and the set block part is displayed as shown in FIG. 24C. Display in black. (Display colors vary depending on the type of display element.

Also, even if it is not a color display, it is sufficient as long as it can be distinguished from the initial display and effective image area display.) Then, store the block number in the block memory ((# 2126t #
2127) - Next step #2128~ #213
2 and I 2133# 2137 are the knobs related to shifting the image area on the copy paper in the forward direction.
For the sake of convenience, a shift to the leading end in the feeding direction is called a left shift, and a shift to the rear end in the feeding direction is called a right shift.

This is because when specifying an area with the document facing up, in this embodiment, the left side of the document corresponds to the leading edge in the feeding direction. In this embodiment, the case where a specified area on a document is copied onto a copy paper with the same positional relationship is used as a reference, and left shift data and right shift data are set with respect to this reference. 70 - In the chart, press left shift key 3 at step @ 2128
36 is judged, and if there is already right shift data, it is decremented every time the left shift key 336 is turned on and returned to "0", and then the left shift data is incremented ($2129 to $2131). , the set right shift data and left shift data are transferred to the graphic controller (roller 392 and fjs1cPU201
($2132), the graphics controller 392 shifts the image area to the left on the copy edit mode display screen based on the data, while the first CPU 20
1 carries out the load roll of the timing roller shown in 70-Chart 1 of Pt & 18 in accordance with the shift data.

In the following steps $ 2133 to @ 2137, processing when the right shift key 337 is turned on is performed in the same way as in the case of the left shift key.

FIG. 25 shows a subroutine of the second operation panel 360. First, in steps 92200 to 2205, each time the edit select key 361 is turned on, the 6-car switch controls the on/off of the original edit mode display lamp L1 and the copy edit mode display lamp L2. Lamp off usually indicates copy mode,
Along with these displays, each mode flag is set and used for various controls. In addition, in step #2206, A manuscript -
Two pairs of window lamps L16 are turned on, and step $
In 2207, lamps Lie and L corresponding to A-B originals are used.
Processing is performed to turn off both l-fs.

Next, step #2208. In #2209, if the mode is the original editing mode or the copy editing mode, input of the original mode and the copy mode is accepted. This step well 2209 is constructed as a subroutine shown in FIG.

In step $$2210, it is determined whether the mode memory key 371 is on edge, and the setting of the mode for original A is accepted! ! ! (Lamp L1 [3 is lit), the lamp L16 is turned off and the lamp L17 is turned on, and at the same time, the mode that was previously set for the original A using the first and second operation panels is changed. Store in the first mode memory ($2211 to $2213).

If NO in step #2211, the mode setting for B original is accepted! ! (lamp L17 is on), so after turning off the lamp L17, the mode for original B is stored in the second mode memory ($2214.
$2215).

In the next step $2216-#2233, the copy mode is switched using the mode select key 3f0.

The mode is sequentially switched each time the mode select key 370 is turned on. For example, when the mode select key is turned on in the automatic paper selection mode state fi (? button L11 is on), the lamp IIL is turned off and the large automatic magnification selection is selected. The lamp L12 indicating the mode is turned on and a corresponding flag is set.Then, the mode is sequentially changed by the same process. Also, X? 27' $2224g
The determination as to whether or not the mode is i-mode is made by determining whether the original editing mode or the copy editing mode is selected by the aggregation select key 361. After R, step $22
The mode selected in step 34 is transferred to the first CPU 201.

The subroutine shown in FIG. 26, which corresponds to step $2209 in FIG.

Steps $ 2235 to @ 2245 are steps for selecting the type of original, and when any of the keys 362 to 365 corresponding to one-sided one-sided original, two-sided one-sided original, double-sided original, or book original is turned on, lamps L3 to L6 are turned on. The process of turning on the corresponding lamp and turning off the others is performed.

Steps 92247 to $2258 are steps for selecting the type of copy, and keys 366 to 2258 correspond to one-sided copy, two-sided one-sided copy, two-sided copy, and composite copy.
369 is turned on, lamps L7 to LIO
Then, in step #2259, the selected original and copy types are transferred to the first CPU 201.

FIG. 27 is a subroutine showing the control of the display section 380 in FIG. 9. In the editing mode, the display for the document front set (lamp 18) is turned on, and the display for the document back set (lamp 18) is turned on.
Turn off lamp L19) (#2300~@23
02), and when in normal mode, the display is reversed to the above ($2303. $2304).

As mentioned earlier, in the copying machine according to the present invention, when editing a document, the document is set face up on the document feed tray of the ADF and the area is specified, so that the document can be fed as is after the area 1 is set. When in editing mode, the manuscript is set face-up. The document is then placed on the document placement lath 16 while being moved by the soft part. On the other hand, when in normal mode, set it face down as before. Since the original is set face up or face down depending on the mode, the lamp L18. The document setting state is instructed by L12.

FIG. 28 is a subroutine explaining the control of the ADF in the normal copy mode, and includes steps @2400 to #240.
In 2, there is an original on the iX original tray (detected by a sensor not shown), and the ADF start signal is "1" (step #504 in Figure 19).
Turn on the main motor of F and the document feed clutch CL301. Next, when the document sensor SE6 detects the end of the document (#2403), the end of the document is placed on the document rllllt.
Timer E of the length to be transported to the exposure start position on the screen 1e.
@2404), and when the end of timer E is determined in step $2305, the main motor and document feed clutch CL301 are turned off ($2408), and the document position signal is set to "1" in step $2407. , this manuscript localization WI number is step #50 in Figure 19.
7, and the copy operation is started.

During normal copying, there are cases where the original document spans two or more pages, so the next step #2408. Se in #2409?
) After the specified number of copies have been completed, it is determined again whether there are originals on the original tray.

If there is a document, turn the ADF start signal to "
1" and send in the next original ($2410). In reality, the motor etc. will be used in the next cycle at step $2402.
is turned on. Mainly, if there is no manuscript, the manuscript is currently placed.
Turn on the main motor (#2411) and set timer F ($2412) to eject the document on the last 16. Timer F ends at step @24.
13 and the main motor is turned off (#2
414).

5, 291A, B, and C indicate subroutines for editing control, and these subroutines are written separately for one-sided one-page originals, two-sided one-sided originals, and two-sided originals.

In the case of a single-sided, one-sheet original as shown in Figure 29A, first step $
2500-C' Determine whether there is a document on the document F ray. If YES, on condition that the ADF start signal is rlJ (#2501), turn on the ADF main motor and turn on the document feed clutch CL301. It is turned on (#2502), and the Ar)F start signal is set to "1" in step #504 of FIG.

Next, in step $2503, the reverse discharge switching clutch C
Turn on L302 so that the document enters the reversing section 303, and wait until the trailing edge of the transported document is detected by the off-edge of the sensor SET in step $2504, and when the trailing edge is detected, step At 2505, a clutch (not shown) is switched to change the ADF's document conveyance belt from a forward rotation state to a reverse rotation state. and reversing section 3
Is the leading edge of the document reversed in 03 the sensor SE? ($2506), timer G is activated at step #250.
is set, and the main motor is turned off when this timer G ends ($2508ﾜ＠2509).
The value is set to the time from when the leading edge of the document turns on the sensor SET until it is transported in the reverse morning direction and reaches the exposure start position.

With the above processing, the original set face up is turned over and stopped on the original placing glass 16 with its leading edge aligned with the exposure start position. In step $2510, the original position signal indicating that the state is ready for copying is set to "1".
This signal is determined in step #507 of the tjS19 diagram, and copying is started.

In step 2511, it is determined whether copying of the set original has been completed, and in the next step 2512, it is determined whether there is another copy set as an edited copy. Since Figure 29 A is for a one-sided, one-sheet original, other copies are stored as two areas of the one-sided original, A original and B original, and each part of the original is copied onto two single-sided sheets. , double-sided copying, or changing the position of the original area and compositing on a single-sided sheet of paper. If there is such another edited copy, the process returns from step @2512 to $2510, the original position signal is set to "1" again, and another edited copy is started.

When it is determined in step #2512 that all copies have been completed, the conveying direction of the belt is returned to the forward rotation state in step $2513, and the main motor is turned on (#2514) and the reverse discharge switching clutch CL302 is turned off (#2515).
, #28 Set the same timer B as explained in figure (
#2516) Then, when timer B ends, the main motor is turned off ($2517.1518) and the process returns to the main routine.

FIG. 29B shows a subroutine for editing feed roll in the case of a single-sided, two-page original. The step @ 2520 marked "Original feeding" in this routine is the step @ of FIG. 29A.
Perform the same processing as 2500~@2502, and also select "Reverse" [Normal position? Step $ marked j
2521. Well 2522 similarly steps @ 2503~
The same process as in #2509 is carried out, whereby the original set face up is turned over and placed on the original placing glass.Next, in step @2523, the original position signal is set to [1], and the original is placed face down. Wait for the copy to finish (@2524) and eject (#2525),
The discharge process in step @2525 is the same as the process in steps #2513 to $2518 in FIG. 29A.

Then, in step $2526, it is determined whether or not the original has been fed with double-sided picture paper. If only one sheet has been fed, the process returns to step @2520 and processes the second original.

FIG. 29C shows a subroutine for editing control in the case of double-sided originals; the step marked "Original Feed" in this routine @ 2530 is step #2 to FIG.
Step #25321$ 500~$ Same as 2502 and also marked “Flip” and “Home position?”
2533 and well 2536. #2537 corresponds to steps #2503 to @2509 in Fig. 29A, and also "discharge"
Step #2540 marked with is the same as steps l$2513 to $12518 in FIG. 29A.

In this subroutine, first, the tJS 1 side of the original set face up is processed in steps $$2530 to #2533.
Set the original on the original placing gamma lath 16, wait for the end of copying (#2534), then set the belt to normal rotation in step #2535, and perform steps $$2536 to $253.
At step 8, the second side of the original is set on the original placing glass 16. Then, when the copying for the second side is completed ($25
39) Discharge (#2540).

FIG. 30 shows the main routine of the fourth CPU 204 that controls the duplexing unit, in which the initial M setting is performed at step $3000, the routine timer is set at step #3001, and the subroutine for controlling the movement of the duplexing unit is executed at step #3002. Process and X? −／
7'# At 3003, the routine timer ends and the process returns to step $3001. Communication with the first CPU 201 is performed using an interrupt, as is the case with other CPUs.

The subroutine of step #3002 (operation controller) C7-C is shown in FIG.

First, in step $3100, it is determined whether the mode is double-sided copying, and if YES, step @3101
It is determined whether the front side or the back side of both sides is used. This determination is made depending on whether or not the paper is fed from the intermediate tray 253. If the front side is to be copied, step #3102.
At #3103, the discharge switching clutch CL 100 and the composite switching clutch CL 101 are respectively turned on. As a result, the paper from the discharge roller pair 29 is guided to the intermediate tray 253. Step @ 3101, if it is on the back side, l1
Ij! Since copying is completed, discharge switching clutch CL10
0 is turned off so that the paper is discharged to the sorter 280.

Steer 'l' In step #3104, it is determined whether the mode is composite copy or not. In the case of composite copy, it is determined in the next step #3105 whether it is the first copy or the second copy. Step well 310
6. At $3107, turn on the discharge switching clutch CL 100 and turn off the composite switching clutch CL 101. As a result, the paper is transported without passing through the intermediate tray 253, and the copy is made on the same side as the first copy. Step $3104. If YES at $3105, proceed to step #3108.

Next, in step $3109, it is determined whether or not the storage of paper in the intermediate tray is completed, and when it is completed, the tray up/down clutch CL102 is turned on and the storage of the paper in the intermediate tray 25 is completed.
3 to the α-ray position in Figure 1 (#3110),
Then, in step #3111, the timer 1-1 is set, and after waiting for the timer H to end (3112), the lay-up/down clutch CL 102 is turned off (#3113), and the driving force is applied to the paper refeed roller 254. Turn on the paper refeed clutch CL 103 that transmits the
Also, set timer ■ ($3115), and step #3116. At #3117, the timer I ends and the clutch CL 103 is turned off.

Although the copying machine according to the present invention can perform various kinds of copying using the configuration and flowchart explained above,
Various forms thereof will be explained below.

FIG. 32 shows an m-set of copies from a single-sided original, and assumes that there is an image of mustard A on the original, and of these, D and L are designated as image areas. In addition, the leading edge in the feeding direction is the left corner of the figure for both original documents and copy paper.

Now, when copying this document onto one single-sided sheet, the images of D and L are stored as the A document in 8 areas, and based on this area designation, the image-to-image erase section 400 moves the images of A-C, The electrostatic latent image on E- is erased, and only the images on D and L are transferred onto the copy paper.

Next, when single-sided two-sheet copying is selected on the second operation panel 380, the two images on one G document are to be copied onto two sheets of copy paper, so the images of D and L are copied. are designated as separate areas. That is, the image of D is stored as an AIg manuscript, and the image of L is stored as a manuscript of B6.
The images are then copied onto separate pieces of copy paper.

Single-sided two-sheet copying copies images separately on two sheets of paper, but when double-sided copying is selected, two images on one sheet of paper are copied separately.
This means copying two images onto the front and back sides of a single sheet of copy paper. In any case, since the image on one document is divided into two, this is called a divided copy. In the case of double-sided copying, the area designation on the document side is the same as in the case of single-sided two-sheet copying, but the copy paper side is fed again by one pager double-sided unit 250. In FIG. 31, the image stored as the B original has been shifted in the feeding direction. In the copying machine of the embodiment, the shift in the orthogonal direction is performed by shifting the manual paper feed section 40, so it must be noted that this shift cannot be performed on the back side. If you want to perform a shift in the orthogonal direction, copy two copies of one single-sided original and one single-sided copy on the same copy paper.
Of course, a configuration can be adopted in which this can be done automatically. For example, the intermediate tray 250 may be movable in the orthogonal direction, and the intermediate tray 250 may be moved by a motor according to the input shift amount. Just do it.

To explain when composite copying is selected for Ra, composite copying of a single-sided, single-sheet original is one in which two image areas of the original are specified separately, and the positional relationship of these image areas is adjusted on a single sheet of copy paper. When copying with changes, $32
In the figure, the image D stored as original A is shifted toward the rear end in the feeding direction and toward the top in the figure in the orthogonal direction, and the image L stored as original B is shifted toward the leading edge in the feeding direction. has been shifted.

Similarly, the case of a single-sided two-page original is shown in Figure 33, the case of a double-sided original is shown in Figure 34, and the case of a book original is shown in Figure 0 shown in Figure 35. Two pages with a narrow space between them indicate that they are separate pages, and two pages that are written with a narrow space between them indicate the front and back sides of a single page (the left side is the front side). Also, the shaded part of the manuscript indicates that the manuscript has been selected. image area. As shown in these figures, the copying machine of the present invention can perform various types of editing copying. In addition, the 33rd~
It should be noted that in Figure 35, there is no combination with single-sided, single-sheet copying. In addition, in the case of book manuscripts, the ADF is
! Next, a modification of the present invention will be described in which only the Wl area is specified, and the book document is set by the user's hand.

In the embodiment, the effective image area and designated image area are displayed in blocks. Here, the effective image area is calculated from the paper size and magnification, and depending on these parameters, the calculated area size and block units may not match, but in the example, the maximum number of blocks within the calculated area size This means that the area consisting of the following is set as the effective image area. This setting was made in relation to the resolution due to the number of light emitting elements constituting the inter-image eraser 400, but if the resolution is increased by increasing the number of light emitting elements, the program as shown in FIG.・It is possible to display the effective image area regardless of the unit and edit accordingly.

To display the effective image area unrelated to each block, use %j
Niif 11! ! It is suitable for an electrophotographic copying machine capable of substantially continuous magnification change as shown in Japanese Patent No. 58-208758.

When displaying the effective image area as shown in FIG. 36, it is necessary to be able to specify blocks only partially falling into the effective image area. That is, as shown in $371g, blocks 12 and 16 can also be specified. The control for displaying in this way is performed in step #2104 in step $2105 of FIG. J1
．． @Rena The process of converting the effective image area into blocks is performed, but you can stop this process and just output the calculated effective image area to the graphic controller as it is.Of course, the unit of calculation is This corresponds to the decomposition of the inter-image erase 400. Note that the display of the designated area in Fig. 37 is performed in step #2109 of Fig. 23.
．． At step $2113, block numbers that partially overlap with the valid image area are also included, and among the block numbers sent to the graphic controller in step $2126, block numbers that partially overlap are displayed as valid image areas. The graphic controller may be configured to restrict only the overlapping portions.

In the second modification, the graphic display section provided on the Pl&1 operation panel 330 is provided on the operation panel 70 of the copying machine. That is, as shown in FIG. 38A, the 7-segment display section 72 of the operation panel 70'' is used as a graphic display section 500, and this graphic display section 500 performs the functions of the 7-segment display section 72, such as displaying the number of copies and displaying the magnification. , the manuscript editing block display as shown in FIG. 38B and FIG. 7C.

Copy editing displays such as D, E, and F are performed. In this case, as shown in FIG.
A graphic controller 501 is provided on the control circuit side to control the graphic display section 500. Of course, the data for displaying the editing screen is stored in the third CPU 203.
transferred from.

The third modification relates to block number designation on the first operation panel, and the #S1 operation panel 600 is shown in FIG. 40. In the embodiment, the block numbers were sequentially incremented or decremented, but this In the example, four keys 601, 602.
603 and 604, and use these keys to change the block number displayed on the number display section 332, and use the set key 335 to specify it as part of the designated area. Control for performing this operation is performed at step 210 in FIG.
6-Replace #2123 with 70- shown in FIG. 41.

To explain the 70-chart in #141, step 9
2150 ~ $ 2153 is the up shift) key 601, steps @ 2154 ~ @ 2160 are the right shift key 602
Steps $2161 to @2167 correspond to the down shift key 603, and steps #2168 to #2171 correspond to the left shift key 604, respectively.

When the up shift key is pressed, "1" is first subtracted from the contents of register D for setting the block number on that edge.
2150. #2151). Register D is initially set to "1" by the initial setting of the main routine of @3CPU. And step #2152. When the contents of register D became 0.4.8.12.16°20 in #2153, t! This means that the block number before processing in step @2151 was 1.5.9.13.17°21, which was the upper edge of the shift, so add "1" to register D. Perform processing to return to the original block number.

Next, when the on-edge of the right shift key 602 is detected, "4" is added to register A in step @2155, and step #2156. At $2157, shift to the right to control the block number so that it does not exceed the right edge of the display.

Next, in step #2158, it is determined whether the mode is manual feeding mode or cassette mode. In the manual feeding mode, since the paper size to be used is unknown, the effective image area is not set.Therefore, the step moves to the next down shift key operation jl (#2182~). On the other hand, in the case of cassette mode, the shift of the block number is effective.
Do it at 2160. That is, "・t" from register A
By performing subtraction processing (shifting the block to the left), the right shift key 602 functions only within the effective image area.

Since the copying machine according to the present invention feeds sheets with one side aligned, the effective image area has a fixed upper edge and left edge, and only a lower edge and right edge that change, as shown in FIG. 24A. Therefore, the operation of the up shift key and the left shift key will not leave the effective image area.Therefore, the determination of whether or not the manual feed mode is on, the determination of whether or not it is within the effective image area, and the processing thereof are related to the right shift key and the down shift key. only.

In the processing of the down shift key from steps $2161 to #2167, steps #2162 to $2164 have an inverse relationship to the up shift key. Also, step #
Steps 2165 to #2167 are processes for making the shift range described above within the effective image area.

Steps @ 2168 to @ 2171 are left shift key processing, and right shift key steps $ 2154 to #
2157 and has an inverse relationship.

In the above modification, among the group of keys included in the switch matrix 390 of FIG.
It goes without saying that 3.1 is replaced by keys 601.602.603.604.

In the fourth modification, an image block is specified using a numeric keypad, and in FIG. 42, a numeric keypad is provided on the first operation panel 600'. The input control in this case is omitted as it can be performed in the same way as the normal numeric keypad operation for setting the number of copies, but in the example shown in Figure 42 there is no clear key, so the input value is Display in digits,
The numerical value that was previously in the 1st digit is moved to the 10th digit.

Note that in the case of cassette paper feeding, the process of restricting the specified range to within the valid image area will not be accepted if the block number displayed when the set key is pressed is outside the valid image area, and the block display section 331 will not be accepted. It is sufficient to not display the black color, and to notify the user of this, "00" may be displayed or the number display section may be made to blink.

Furthermore, since there is a numeric keypad on the operation panel of the copying machine, the block number may be specified using this numeric keypad. The panel created by fjSla at this time was MS42.
If you remove the numeric keypad from the figure, it will become a thing again. In this case, input using the numeric keypad on the copying machine side will be sent to the 3rd CPU only when the editing mode is set using the edit select key.
It is used to display the block number and is controlled so that the display of the number of copies etc. is not changed.

When using the numeric keypad on the operation panel of the copying machine, press No. 38.
It is more preferable to provide the graphic display section 500 on the operation panel of the copying machine as shown in FIG. B. Fourth
FIG. 3 shows this modification, in which the number display section 332. of the first operation panel. Set key 335. Left and right shift key 336.3
37 is also provided on the operation panel of the copying machine.

In the 16th modification of the first operation panel 600" shown in FIG. 44, each block is composed of self-illuminating switches SLI to 5L24. A self-illuminating switch means that the pressing surface of the switch itself emits light when turned on. In the previous embodiments, the editing area was specified by pressing the set key 335 for each block, but in the example shown in Fig. 44, all self-illuminated switches for the specified area were turned on. The area can be specified by pressing the set key 335 from the screen.

In the case of self-illuminating switches, it is not possible to display the Zfffi type, so the display of the effective image area is fJS24.
It is preferable to use the linear display section shown in FIG. B.

FIG. 45 is a part of a 70-chart of control when using self-illuminated switches SLI to 5L24, and is returned to steps $ 2106 to @ 2124 in FIG. 23.

Figure 45 shows a series of 7 only for the self-illuminating switch SLI.
0- is shown, and other switches are omitted,
They are all 70- in the same shape. That is, switch 92180
It is determined whether the switch is on or not, and if the answer is No, the next switch is on or not. 2182), turns on if it is off (#2183), and the block number of the turned on switch is determined in step #2125 of FIG.
27 and stored in memory. Note that in the case of a self-illuminating switch, step #2126 is omitted. Furthermore, in Fig. 45, the step of restricting the designated area to within the effective image area is omitted, but in order to do this, step 12 determines whether the block number of the self-illuminated switch that is turned on is within the effective image area. What is necessary is to add a step to perform the following steps, and if not, to disable the light from being turned on.

The next modification concerns shifting in the orthogonal direction during copy aiii. In the embodiment, the manual paper feed section 40 is shifted in the orthogonal direction, this is detected by the pulse disk 43 and the 7-axis sensor 44, and the frame line indicating the paper is shifted and designated on the copy editing screen of the graphic display section 331. The positional relationship with the area was displayed. Although this method is easy to understand for grasping the positional relationship of the designated area with the paper, on the other hand, the manual paper feed section and the graphic display section are usually located at separate locations, making it difficult to operate.

In FIG. 46, a display section is provided near the manual paper feed section 40 to display the width of the specified area in the orthogonal direction.
The D array 700 is configured to display the width of the specified area. Since the LED array 700 is provided in the main body of the copying machine, the first CPU 20
1 controls blinking. To control this, just add the subroutine shown in @47 to the main routine of the first CPU 6 In step 4000 of Fig. 47, the value obtained by multiplying the width of the specified image area by the magnification is stored in the renostar E, and this value is applied to the LED. Output as lighting data of array 700 (
$4001).

The copying machine of the present invention described above has various features, which are listed below.

(1) Jij! In the copy mode, the original is set face up in the ADF, and in the normal copy mode it is set face down, and the direction in which the original should be set is displayed according to each mode.

(2) Area specification in lit collection copy mode is now done in block units. straight. Here, a transparent plate on which block classifications and numbers are written is placed on top of the original, and the number of the block to be specified is input using the input means shown in the embodiment and modification. Although this method limits the edges of the area by the size of the block, it has the advantage that non-rectangular areas can be specified more quickly and easily than the XY coordinate input method.

(3) When shifting the specified document area on the copy paper, the feeding direction is adjusted by adjusting the paper registration timing, and the orthogonal direction is now fed from the manual feed tray that can be shifted in the orthogonal direction. However, by doing this, the configuration for shifting the partial image of the original on the copy paper becomes very simple. Further, by detecting the shift amount of the manual feed tray and displaying the positional relationship between the specified partial image and the paper, the appropriate shift amount can be grasped at a glance.

(4) The magnification is set by automatically calculating the maximum magnification that fits the image area on the paper from the size of the edited image area and the selected paper size. In this case, the aspect ratio of the image area is In many cases, the aspect ratio does not match, so calculate the vertical magnification and horizontal magnification separately and set the smaller one. By doing so, troublesome calculations and erroneous copies can be omitted.

(5)! From the size of the copied image area and the selected magnification, it automatically selects the smallest paper size that will fit the copied image area at that magnification. In this case, it goes without saying that calculations are made in terms of height and width, similar to the automatic magnification selection in Collection II above.This editing automatic paper selection function is effective when you want to specify the size X'' (magnification) of the image; The automatic editing magnification selection function described above is effective when you want to specify the size of copy paper.

(6) Multiple partial images on one sheet of original are divided and copied onto multiple sheets of paper; in this case, the multiple sheets of paper are separate sheets of paper, and the case of the front and back sides of one sheet of paper. include,
This divisional editing can also be used when copying one partial image onto an IT paper by changing its position on the paper.
can do.

1. As described in detail above, the present invention provides an electrophotographic copying machine having a means for partially irradiating a charged area on a photoreceptor with light in order to form an image of only a portion of the document. means for specifying an area to be copied, means for selecting a copy magnification to be used, means for calculating an optimum paper size from the size of the specified original area and the selected copy magnification, Since it is equipped with means for controlling copying so that paper is fed and a part of the image of the original formed on the photoreceptor is transferred onto this paper, the image area of the AI collection is Based on the size and selected magnification, the smallest paper size that fits the copied image area at that magnification is automatically selected, freeing the user from the troublesome task of calculating the paper size to use. .

[Brief explanation of drawings]

Figure 1 is a central sectional view of the electrophotographic copying machine according to the present invention, Figure fjS2 is a perspective view of the main parts of the manual paper feed section, Figure 3 is a plan view of the same, Figure 4 is a perspective view of the ADF, Figure 5 is a perspective view of the main part showing the inter-image eraser, Figure 6 is a plan view of the operation panel of the copying machine, Figure PA7A 1. tA A plan view showing the first operation panel of the DF, FIGS. 7B to 7F are plan views showing the graphic display section of the first operation panel, and FIG. 8 is a plan view showing the first operation panel of the ADF.
f: Plan view showing IfJ2 operation panel, Figure 9 is AD
FIG. 10 is a block diagram showing the configuration of the control device of the copying machine, and FIG. 11 is a plan view showing the original setting direction display section of A.
FIG. 12 is a block diagram showing the configuration of the control device of the DF, FIG. 12 is a block diagram showing the configuration of the control device of the synthesis unit, and FIG.
15 and 17 to 19 are 70-charts showing the processing of the first CPU, FIG. 16 is a chart showing the range of the image erased by the inter-image eraser, and FIGS. 2
70-chart showing CPU processing, #22 diagram, 23rd
Figures 25 to 29 show the processing of the third CPU 70.
- Chart, tjS24 is a diagram showing the display state of the graphic display section, Figures 30 and 31 are flowcharts showing the processing of the 4th CPU, and Figures 32 to 35 are schematic diagrams showing the concept of each editing mode. 36 and 37 are diagrams showing the display state of the graphic display unit according to the first modification, and FIGS. 38 and 39 are the configurations of the copying machine operation panel and the copying machine control device of the fjS2 modification. Diagram showing tp140
Figure 41 is a plan view showing the first panel of the third modification, Figure 41 is a flowchart that replaces a part of Figure 23 in the same modification, and Figure 42 is the first capture operation of the fourth modification. FIG. 43 is a plan view showing the copying machine operation panel of the fifth modification, FIG. 44 is a plan view showing the first panel of the sixth modification, and FIG. Figure 46 is a plan view showing the manual paper feed section of the fjS7 modification; Figure 47 is a flowchart added to the same modification; Figure 48 is the automatic editing magnification FIG. 6 is a diagram illustrating a document area in a selection mode or a ii collection/output automatic paper selection mode. 26...Timing roller 40...Manual paper feed unit 201...1st CPU 202...2nd CPU 203...Pt53CPU 204...4th CPU 250...Composition unit 300...ADF 301. ...Original feeding section 302...Transporting section 303...Soft section 330...First operation panel 360...Second operation panel 380...Original setting direction display section 400...Inter-image eraser Out 11 people Minolta Camera Co., Ltd. Figure 3 A 4D Fallen 32o+ Figure 12 Copy to side 1 to Figure 75 [f]l&:lvinu ρ

Claims (1)

[Claims] 1. In an electrophotographic copying machine having means for partially irradiating a charged area on a photoreceptor with light in order to form an image of only a part of the original, the method comprises: means for specifying an area to be printed, means for selecting a copy magnification to be used, means for calculating an optimum paper size from the size of the specified document area and the selected copy magnification, and feeding the paper of the optimum size. An electrophotographic copying machine is provided with means for controlling copying so that a partial image of an original formed on a photoreceptor is transferred onto this paper. 2. When the specified area is located away from the registration reference edge of the document, the copy control means performs control to delay the paper feeding timing in accordance with the distance from the registration reference edge to the area. An electrophotographic copying machine according to claim 1, characterized in that: