JPS62279370A - Electronic copying machine with editing function - Google Patents

Abstract

PURPOSE:To improve resolution by making position specification pitch (1st pitch) for specifying the position of an original shorter than the pitch (2nd pitch) of a spot light source which controls an image formation area. CONSTITUTION:Partial erasing lamps, i.e. light emitting diode LED elements 50... of an LED array 48 are arranged laterally at specific intervals (2nd pitch). A rotary encoder 106 provided in the case 100 of a mouse 36 is constituted by fixing a slit disk 110 and a rubber roller 116 having part of its peripheral surface projected from the reverse surface of the case 100 to a rotating shaft 108, and the rubber roller 116 is rolled on the original during editing to supply rotations corresponding to the rolling distance to the slit disk 110. Here, input resolution (1st pitch) from the rubber roller 1 is made shorter than the the pitch (2nd pitch) of the LED array 48. Consequently, the editing area is specified in units of the 2nd pitch and the position specification accuracy is improved.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (a) Industrial Application Field The present invention relates to an electronic copying machine with an editing function capable of so-called trimming and masking, which can copy only a part of an original image. It's about machines.

(b) As a conventional electronic copying machine with an editing function, for example,
The method described in Japanese Patent No. 87470 has been proposed. What is described in this publication is an original irradiation means for irradiating the original surface with light to obtain a reflected image, an imaging optical system for forming the reflected image of the original surface on a photoreceptor, and the above-mentioned photoreceptor. a photoreceptor irradiation means for irradiating light onto the body surface; a position detection means for detecting a designated position on the document surface;
．． The position z on the document surface detected by this position detection means
′; control means for controlling the operation of the photoreceptor irradiation means in accordance with signals of; The first exposure and the second exposure of the photoreceptor by the photoreceptor irradiation means are performed, and the position on the document surface detected by the position detection means is obtained by overlapping the first exposure and the second exposure. The electronic copying machine is characterized in that it is configured such that the amount of exposure to the photoreceptor can be changed according to the invention.

J3, the above-mentioned publication does not mention the relationship between the position specifying pitch of the position specifying means for specifying the position of the document and the pitch that defines the image forming area when forming a document image.

(c) Problems to be Solved by the Invention In the above-mentioned copying machine, in order to define the area where a copy image is to be formed on the photoreceptor, an erase operation is usually performed in a direction perpendicular to the direction of movement of the photoreceptor. A large number of point light sources as lamps are arranged, and by selectively blinking the point light sources, only a designated area of the document is copied.

By the way, in this case, if the position specifying via which specifies the position of the document is longer than the pitch of the point light sources that define the image forming area, even if a large number of fine point light sources are arranged, the resolution will not be enough to specify the position. It is dominated by the pitch of the means, and the positioning accuracy cannot be improved.

On the other hand, an encoder can normally be used as a means for specifying the position of the document, but when this encoder is used, the pitch can easily be made quite fine.

(d) Means for solving the problem The present invention provides a position specifying means for specifying the position of the document to be edited by moving it on the document at a first pitch, and a position specifying means for specifying the position of the document to be edited by moving the document. a document image forming means for forming a copy document image on the photoreceptor by defining the area with a second pitch, and the first pitch is shorter than the second pitch. This is an electronic copying machine with an M collection function.

(E) Effect In the present invention, since the first pitch is set to be shorter than the second pitch, the area in which the image can be completely formed is defined by the second pitch.

(F) Embodiment FIG. 1 is an overall external view of an electronic copying machine as an example of Mfz according to the present invention. The electronic copying machine 10 includes a main body 12, and a document table 14 is provided on the upper surface of the main body 12.

This document table 14 is supported by the main body 12 so as to be movable left and right. And this N1. The stacking table 14 includes, for example, a transparent glass plate 16, and a document cover 18 is mounted on the plate in an upwardly openable and closable manner. The rectangular transparent glass plate 16 has
A positioning plate 20 is provided along three sides of the glass plate 16 for positioning the placed original. Roughly speaking, L-shaped magnetic tape 22 is pasted on two sides of this opening-shaped positioning plate 20. This magnetic tape 22
is for generating a reference point signal in the magnetic sensor of the 7-cushion 36, which will be described later, when editing a manuscript.

An operation panel 24 is formed in front of the top surface of the main body 12. This operation panel 24 includes a group of keys 26. A start key 28 and a display panel 30 are formed. The key group 26 is used, for example, to set the number of copies. The start key 28 is used to command a quick start. The display panel 30 displays the desired number of copies set by the key group 26, and the status of the copying machine, such as "ready to print".

A paper feed section for removably mounting a paper feed cassette 32 is formed at one end of the main body 12, and a paper discharge section including a paper discharge tray 34 is formed at the bottom end.

Furthermore, the mouse 36 for specifying the position for editing is
It is connected to the main body 12 by an elastic cord 38 of the book.

That is, the user moves the mouse 36 over the original 40, which is placed with the original surface facing upward, anywhere on the g stacking table 14, on the /, -18, etc., and specifies the position for editing. Then, the manuscript 40 whose position for editing has been specified using the mouse 36 is copied under rc,! Turn the transparent glass plate 16 upside down so that the J area faces downward as shown in FIG.
It is placed back on top.

After that, after closing El and the manuscript cover 18, press the start key 2.
8 is operated, the copy image collected on the transfer paper supplied from the paper feed cassette Z 32 is completely discharged onto the paper discharge tray 34 at the recording edge Celsius.

Next, the internal structure of the electronic copying machine 10 will be described in detail with reference to FIG. It is attached so that it can be opened and closed.

A slit is formed on the upper surface of this main body 12, that is, below the transparent glass plate 16. Regarding this slit,
Inside the main body 12 is a light source 4 such as a halogen lamp.
2 is fixedly provided. Associated with the light source 42 is a reflective mirror with an elliptical cross section. Hikari fi42 Kamohikari is
The light is reflected by a reflecting mirror and irradiated onto a document placed on a transparent glass plate 16.

Therefore, as the document table 14 is moved in the direction of the arrow, the document receives and reflects the light from the light source 42 through the aforementioned slit. The reflected light from the product f5, that is, the original image, is projected onto the photosensitive drum 46 and formed into an image through a short focus lens array 44 fixedly provided below the slit. This short focus lens array 44 is
It consists of a convergent photoconductor with a large number of rod lenses in close contact with each other. It goes without saying that such a short focal length lens array 44 may be replaced with another plastic lens array or a convex lens.

A photoreceptor drum 46 is arranged approximately in the center of the main body 12,
It is rotated in the direction of the arrow (clockwise) in synchronization with the movement of the document table 14 by a main motor 96 serving as a drive source. The photoreceptor drum 46 includes a conductive substrate and a light guide layer, such as monolithically formed amorphous silicon, deposited thereon.

A charged layer corotron 47 for uniformly positively charging the photoreceptor drum 46 (approximately 600 V) is fixedly attached upstream of the short focus lens array 44 in the rotational direction of the photoreceptor drum 460. A latent image of the original is formed on the photosensitive drum 46 by the charging Rorotron 47, the light source 42, the short focus lens array 44, the W placed on the original table 14, and the original.

Short focus lens array 4 near the circumferential side of the photoreceptor drum 46
On the downstream side of mouse 4, there is the above-mentioned mouse 36 (see Fig. 1).
A partial erase lamp or LED array 48 is provided for erasing unnecessary electrostatic latent images based on the signal.

Downstream 1J1 of the LED array 48 is a developing device for developing the silent replacement image with toner! 56 are provided.

This developing device 56 stores a mixture of toner and carrier. This mixture is flown toward the photosensitive drum 46 by the magnet roller 57 . At this time, spikes of the mixture are formed on the portion of the magnet roller 57 that faces the photosensitive drum 46. When the spikes come into contact with the photoreceptor drum 46, the negatively charged toner adheres to the static tKJ image formed by the positively charged toner.

In this way, the static latent image formed on the photosensitive drum 46 is developed as a toner image by the developing device 5G.

A paper feed force controller is removably attached to one end of the main body 12.
332, a support plate 60 for placing the recording paper 58 on the bottom of the six paper feeding trays/toco 2 in which the recording paper 58 is stored in a layered manner is arranged vertically (slidingly). An opening 6 is provided at the bottom of the support plate 60.
2 is formed. This opening 62 has its base end connected to the main body 1.
The free end of a push-up lever 64, which is swingably mounted on the inner bottom of 2, is inserted through it. In relation to this push-up lever 64,
A spring (
(not shown) is provided.

The support plate 60 is pushed upward by the push-up lever 64. Therefore, the recording sheets 58 stacked in the paper feed cassette 32 are pushed up by the push-up lever 64, and the furthest recording sheet 58 comes into contact with the paper feed roller 66 and is taken in. Note that a paper size detector 68 is provided in association with the paper feed cassette 32, if necessary.

A register roller 70 is provided behind the paper feed roller 66. The recording paper 58 fed from the paper cassette I32 is stopped by the booster roller 7o for ten minutes, and then fed in the direction of the photosensitive drum 46 in synchronization with the movement of the document table 14.

When the recording paper 58 is supplied from the register roller 70 near the circumferential side of the photosensitive drum 46, the 1-toner image developed by the developing device 56 is transferred to the recording paper 58.
A transfer Rorotron 72 for transferring images is provided.

A minute percent corotron 74 is provided integrally with the transfer Rorotron 72. This separating corotron 74 is used to prevent the recording paper 58 on which the toner image formed on the photoreceptor drum 46 has been transferred from being adsorbed by the remaining load on the photoreceptor drum 46. On the 5th day of the paper, an alternating current corona discharge is applied to neutralize the charge.

On the downstream side of the separation flotron 74, a vacuum blower 76 is provided for conveying the recording paper 58 to which the toner image has been transferred. The recording paper 58 is conveyed toward the fixing device 78 by the vacuum conveyor 76 .

The fixing device 78 includes a heating roller 82 with a built-in heater 80;
and a pressure roller 84 that is pressed against a heating roller 82. The recording paper 58 on which the toner image has been transferred is inserted between the heating roller 82 and the Calorie pressure roller 84, thereby being heated and pressurized, thereby fixing the toner image. A paper discharge roller 86 is provided on the downstream side of the fixing device 17B for discharging the recording paper 58 after fixing onto a paper discharge tray.

A cleaning device 88 is provided above the vacuum conveyor 76 and near the circumferential side of the photosensitive drum 460. This cleaning device 88 cleans the recording paper 5.
Toner remaining on the photosensitive drum 46 without being transferred to the drum 8 is removed. This cleaning device 88
includes a play 1°90 for scraping off residual toner on the photoreceptor drum 46 and a screw conveyor 94 for conveying the toner scraped off by the blade 90 to a waste toner container 92.

Above the fixing device 78 described above, a document table 14. A main motor 96 is provided for belt driving the ITG optical drum 46, vacuum conveyor 76, etc. via a clutch.

A control section 98 is provided on the left side of the main motor 96 to control the operation of the entire copying machine. This control section 98
houses various components necessary for a control system as shown in FIG. 8, which will be described later.

Here, this LED array will be explained once per day with reference to FIGS. 3 and 4. The LED array 48 is the third
As shown in the figure, for example, 52 LED elements 50.5
0... are closely arranged at 5 m intervals (pitch is 5-) in the N force direction. In this LED array 48, each LED element 50.50...
・Dry/< IC52,L to control the blinking of
A resistor array 54 and a connector 56 are provided for supplying power to the E Di element 50.The LED element 50, the driver 1, the C52 and the resistor array 54 are connected as shown in FIG. be done.

The lighting of the LED elements 50, 50, . . . is controlled by pulses supplied to the input terminals SIN, CLOCK, and LATCH of the driver IC 52. Photosensitive drum 46
to remove the charge on that part of the desired LED element 5.
When lighting 0, the LED element 5 to be lit
A control pulse is applied from the input terminal SIN of the driver IC 52 in synchronization with the clock pulse so that the output terminal of the driver IC 52 to which 0 is connected becomes a low level. Then, when a launch pulse is supplied from the input terminal LATCH, the output terminal of the driver IC 52 to which the LED element 50 to be lit is connected maintains a low level, so that the LED element 50
remains lit.

In order to light up all 52 LED elements 50, all 52 control pulses supplied from the input terminal SIN may be set to a low level, and the launch pulse may be used to maintain the low level of all of the control pulses.

Further, during masking, which will be described later, the LED elements 50 between two points to be masked are lit for a predetermined period of time, and during trimming, the LED elements 50 only between the two points are turned off, and the LED elements 50 outside are lit. become.

Incidentally, such lighting/extinguishing of the LED violet 50 is controlled by converting the Y coordinate data obtained by the aforementioned mouse 36 (FIG. 1) into position data of the 52 LED elements.

Next, referring to FIG. 5, a description will be given of the mouse 36 that is fully connected to the main body 12 by an elastic cord 38. The mouse 36 includes a box-shaped case 100 as a main body that can be held or operated with one hand, and necessary parts are housed within this one vertically long case 100.

On the side of the case 100, there are an indicator 102 for visually observing one uneven concentration area from above and an indicator 10 for the normal movement direction.
3 is provided. Furthermore, a rotary encoder 106 is provided inside the case 100. Mouth - Tarien -
The hoop 106 has a rotating shaft 108 as shown in FIG.
A slit disk 110 fixed to is built-in. A light emitting element 112 for emitting light and a light receiving element 114 for receiving light from the light emitting element 112 through the slit are provided on both sides of the slit disk 110.

A rubber roller 116 whose circumferential surface partially protrudes from the lower surface of the case 100 is fixed to the rotation @i 108 of the rotary encoder 106 . The rubber roller 116 is moved over the original gI 40 during editing, and provides rotation to the slit disk 110 according to the distance of the movement. In this embodiment, the slit disk 110 has 50 slits, and the rubber roller 116 has a diameter of 32 m.
Therefore, each slit has a resolution of 2 m (pitch is 1 ffn).

Note that a recess with a cross-section shape is formed in the end face of the rubber roller 116, and the encoder 106 is recessed into the recess. Therefore, as is clear from FIG. 5, the dimension from the right end surface of the encoder 106 to the left end surface of the rubber roller 116 is short, and the case 100 is narrow.

The distance that the mouse 36 is moved over the document 40 is converted by the rubber roller 116 into 1100 rotations of the slit disk. The slit disk 110 changes the light emitting element 1 according to its rotation.
In order to block the 12 lights at regular intervals, the light receiving element 114 outputs a voltage signal with a frequency corresponding to its rotation speed.

The voltage signal from this light receiving element 114 is sent to the voltage comparator 120.
The pulses are shaped and converted into pulses, which are applied to the control section 98 of the main body 12 via the connector 122 and the elastic cord 38.

As described above, the pitch (second pitch) of the LED array 4 is 5 m, whereas the input resolution (first pitch) from the rubber roller 116 is 2 m. The reason why the input resolution is set to 2 m is because 50 Hals of the control clock pulses of the main motor 96 corresponds to 2I, so it is set for ease of program configuration.

Therefore, the editing area is defined as approximately 5mj#L.

On one side of the case 100 of the mouse 36, there are various operation keys 124, 128, as shown in FIGS. 7A and 7B.
130 and 132 are provided. Edit key 124 is used when editing manuscript 40 using mouse 36. When the edit key 124 is fully operated, the edit mode display element in the display panel 30 on the side of the main body 12 lights up, and the display element for the number of copies changes to display the edit position designation state. Edit key 1
The group of keys 26 on the main body 12 after operating the keys 24 serve as keys for selecting which mode the mouse 362 is to be used in, and for correcting and setting specified input.

X key 130 and X key 132 are provided for setting the X and Y coordinates of editing. To change the movement mode to ζ etc., press the mouse 3 while operating the movement key 128.
6 to the desired position.

101 are operation keys 124 , 128 , 130 , 13
This is a circuit board with 2 buttons. 104 is case 1
It is a straight part provided on one side of 00, and is the encoder axis (108
), and gives instructions so that when the mouse 36 is moved, it can be moved at right angles to the document. Also,
The hood 38 is provided with rollers 116 to prevent the mouse 36 from wobbling when pressing each operation key or moving the mouse.
This is more effective than the conventional method, which is derived from above the mouse. Further, the cord 38 is led out from the side opposite to the direction of movement instruction section 103, so that the hood 38 does not get in the way during movement.

FIG. 8 is a block diagram showing an example of the control system of this embodiment. The control system includes a microcomputer 134. This microcomputer 134 not only controls editing but also controls the entire operation of the electronic copying machine. Although details are not shown, the microcomputer 134 includes a CPU, a ROM that is connected to the CPU and stores control programs, and a ROM that temporarily stores data and is necessary for control when controlled by the CPU. area for various flags, timer area and LED
R with table for array 48 (see Figure 3)
AM is included.

A mouse 36 can be connected to the input port of the microcomputer 134 via a single elastic cord 38. Through the signal line in the elastic cord 38, the microcomputer 134 receives pulses (pulse train) from the voltage comparator 120 and the key matrix 13 included in the mouse 36.
8 data is input.

Furthermore, the microcomputer 134 contains data of the key matrix 140 of the main body 12 and the paper size sensor 6.
8 (FIG. 2) and the like can be inputted.

An amplifier 144 is connected to the microcomputer 134, and a sounding element 146 such as a buzzer is connected to the output terminal of the amplifier 144 to notify the operator that the mouse 36 is moving. That is, when the mouse 36 is moved during editing, the rubber roller 116 rotates, and in response to the increased pulse from the voltage comparator 120, a sounding body drive signal is output from the micro-fump computer 134. The amplifier 144 amplifies this signal and outputs it to the sounding body 146.
, thereby alerting the operator by sound that the mouse 36 is being moved.

In addition, the output port of the microcomputer 134 has
A partial erase lamp or ED array 48 for erasing electrostatic latent images that are no longer needed due to editing is disconnected. The operation of this LED array 48 has been described above.

Next, prior to explaining the operation, each of the trimming mode, masking mode, and moving mode will be briefly explained with reference to FIGS. 9A to 11B.

In the trimming mode, this corresponds to a fully specified rectangular area 148 as shown in FIG. 9A. Only part of the image is left and the rest of the image is erased as shown in FIG. 9B. Therefore, in this mode, the plurality of LED twins 50, 50, . . . included in the LED array 48 are lit only outside this area 148.

In masking mode, as shown in the first QA diagram, two points Pi (Xi, Yt) and P2 (X2
．． Only the part of the image corresponding to the rectangular area 150 connecting Y2) is erased, and the remaining part of the image is left as is, as shown in the first OB diagram. Therefore, in this mode, LE
A plurality of LED DJ children 50.50 included in the D array 48
. . can be turned on only within this area 150.

In the movement mode, as shown in FIG. 11A, the coordinates Pi (Xi) of the leading edge or trailing edge of the moving image.

Yl), and then specify the coordinates P3 (XI, Yt) of the point to be moved while keeping the Y coordinate constant. Then, when the toner image is transferred to the recording paper, the X coordinate position x1 moves to x2, and an image as shown in FIG. 11B is completed. That is, in this mode, the LED array 48 is not used, but the timing of paper feeding and document table drive is controlled by coordinate data, as will be described later.

Before starting the copying operation, the operator places the document 40 on a flat surface such as the W, stacking table 14 or document cover 18 so that the document surface faces upward. and press the Mac 360 edit key 124. Then the display panel 30 (see Figure 12)
The EDIT LED lights up and the copy number display disappears. E
Before the DI T LED lights up, the C0PY LED above lights up, and the functions of the key u26 are a 10-digit copy number setting key, a 1-digit setting key, a copy number clear key, and a copying operation interrupt key. And start,
This key also serves as an interrupt key. While the EDIT LED is on, the key group 26 functions as a trimming selection key, a masking selection key, a memory clear key for specifying position e and mode, and keys for completing editing information input, that is, setting completion keys. When the set key 28 is pressed, the EDIT LED goes out, the C0PY LED lights up again, and the display of the number of copies is also restored.

After pressing the edit key 124 of the mouse 36 to turn on the EDIT LED on the display panel 30, as shown in FIG. 13, lift the mouse 36 with your hand and place it so that the instruction section 102 is aligned with the left edge of the manuscript. Then, move toward the area (rectangle ab'cd) for trimming or masking.
Move the mouse 36 in parallel by hand in the @J direction. Instruction part 1
When 02 is positioned on the line of side b or on the extension line, X
When the key 130 (Fig. 7) is pressed, the encoder 10 at that time
A count value of 6 is sent to the RAM of the microcomputer 134 as data x1. At this time, only the solid line portion in FIG. 15(b) of the copy number display element lights up. If you hold down the X key 130 and move it parallel to the X-axis direction, and when the indicator 102 is positioned on the side cdcr) line, turn off the 8X key 130. computer 1
I can use 34 RAM cents. At this time, the dotted line portion in FIG. 15(b) lights up.

Mouse 36 is also used when setting the Y coordinate positions Yl and Y2.
are arranged as shown at the bottom of FIG. 13 to form Xl.

In the same way as when setting X2, the mouse 36 is manually moved in parallel in the Y-axis direction so that the instruction section 102 can be completely placed on the side be. When the instruction unit 102 is placed on the line of side be, press the Y key 132, data of Yl will be written to the RAM of the microcomputer 134, and the solid line segment (I, ED) of the 15th section (c) will light up. do. Furthermore, while pressing the Y key 132, move the instruction unit 10 parallelly in the Y-axis direction.
If the Y key 132 is turned OFF when 2 is positioned on the side ad, the count value at that time is set as data corresponding to Yl, and the segment L shown by the broken line in FIG. 15(C) is set.
ED lights up and forms a square. As a result, data corresponding to the area abed is set in the microcomputer 134. When specifying the position of the second area, the same procedure is followed to obtain data of Xl, Xa, Y4°Y3. The display at this time will be as shown in FIGS. 15(d) and (e).

Furthermore, the case of setting the movement mode will be explained.

As shown in FIG. 14, a mark such as the tip of the image to be moved and the position of the mark after movement are determined, the pointing part 102 of the mouse 36 is aligned with the mark before movement, and the movement key 128 is pressed. Then, the upper left segment lights up as shown in FIG. 15(f), and the encoder count value can be reset to zero. Then, while holding down the key, move parallel to the X-axis direction until you reach the mark after the movement, then turn off the key. At this time the first
The LED indicated by the broken line in FIG. 5 <r> lights up to indicate completion of data setting. The travel distance is set in the microcomputer based on the count value when the key is turned off.

FIG. 15 <r> is a display when area designation for trimming or masking and movement mode are used together.

After confirming that the area specification for trimming or masking is completed, if it is trimming, just press the set key 28, but if masking is specified, press MAS.
Press the K key to flash the segments that make up the rectangle. (Fig. 15(g)) If you want to go back to trimming mode, just press the TR1M key to stop blinking.

If you fail during the process, you can press the CLEAR key and restart the operation from the beginning, or you can specify only the part where you failed without pressing the CLEAR key, and the data will always be updated. When all specifications are completed, press the set key 28. Then, the EDIT LED goes out, the C0PY LED lights up, and the display returns to the copy number display.

Next, referring to FIG. 8, the operation of this embodiment will be explained based on the flowcharts shown in FIGS. 16 to 18.

After specifying the position for editing of the original 40, as shown in FIG. . Thereafter, the document cover 18 is closed and [840] is fixed onto the transparent glass plate 16. Then, the user operates the start key 28 to start the copying operation.

When the start key 28 is operated, in the first step Sll in FIG.
The main motor 96 for driving etc. is turned on.

When the rotation of the main motor 96 stabilizes, that is, 1 sec has passed since the main motor 96 was turned on, the solenoid of the cleaning device 88 is turned on and the blade 90 is turned on.
The leading end of the photoreceptor drum 46 can be brought into contact with the photoreceptor drum 46. When a predetermined period of time has elapsed since the turning on of the noid, for example, 100 m5ec has elapsed so that no load is applied to the power supply at the same time, the process proceeds to the next step S13.

In step S13, the microcomputer 134
By looking at the signal from the sensor circuit 142 (FIG. 8), it is determined whether the document table 14 is at the home position, that is, whether the right end of the document table 14 is located on the left side of the main body 12. If the document table 14 is in the home position,
If the process does not proceed to the next step 517, in step S15, a return latch (not shown) for moving the document table 14 to the home position is turned on, and the document table 14 is moved to the home position.
4 to the home position, this return latch is turned off by interrupt processing, which will be described later.

In step S17, the transfer corotron 72 is turned on. After turning on the transfer corotron 72, the process proceeds to the next step S19. In step 519, it is determined whether the copy is a manual feed copy, that is, whether the recording paper 58 is fed manually rather than from the paper feed cassette 32.If it is a manual feed copy, the next step S
21, the solenoid of the cleaning device 88 that was turned on in the previous step 311 is turned off. If it is not a manual copy, the process proceeds to step 323 without passing through step S21.

In the next step S23, the paper feed clutch is first turned on, the paper feed roller 66 starts rotating, and the recording paper 58 is fed toward the register roller 70. At the same time, the solenoid of the cleaning device 88 is turned off. The solenoid is activated twice in the case of manual copying in step S19, that is, in the case of passing through step S21, but since only an off signal is supplied, there is no equivalent change in the solenoid. After 200 msec has passed since the solenoid was turned off, the process advances to the next step S25. This time of 200 m5ec is the time for determining a jam when the paper feed clutch is turned on and the recording paper 58 is conveyed.

In step S25, it is determined whether the document table 14 is at the home position, and if it is at the home position, the process advances to the next step S27.

In step S27, the microcomputer 134
It is determined whether the mouse 36 has been designated to move the image to the right in the movement mode. That is, after the edit key 124 of the mouse 36 (FIG. 7) is operated, the movement key 1 is operated.
28. It is determined whether the image has been set to move to the right using the X key 130 and the X key 132.

If the image is set to move to the right, the process advances to step S29; if the image is not set to move to the right, the process advances to step S51.

In step S29, it is possible to determine whether it is the first copy or not. If it is the first copy, the process advances to step 531; if it is not the first copy, that is, if it is the second or later copy, the process advances to step S45.

In step S31, after 300 m5ec has elapsed, the original platen 1
A feed clutch (not shown) for scanning 4 is turned on. In the next step 933, it is determined whether the document table 14 is positioned at the image position. The position of the document table for starting image formation, that is, forming the image of the document 40 as an electrostatic latent image on the photoreceptor drum 46, is determined. If it is not an image position, in the next step 335, the time from the home position to the image position is counted by a counter. If the image is a perfect image, proceed to the next step S37.
In step S37, the feed clutch is released, and 200 msec later, the return flag on the document table 14 is turned on.

In this way, when right movement is set and the first copy is being made, the time from the home position to the image position is unknown for the first copy, so the document table 14 must be moved before starting copying. You need to measure the time.

Next, in step S39, w, it is determined whether the stacking platform 14 has returned to the home position. If it returns to the home position, proceed to the next step 541, and step 5
At 41, it is determined whether the time it takes to move the image to the right is greater than the time counted in the previous step 335 plus 1020 msec. This 102
0102O is 2 set in step 351 described later.
00m5ec, 300m sec after step 353
, 100 msec set in step S55 and 420 m5ec set in step 371. In other words, in order to move the image to the right, it is necessary to advance the feeding of the deployment paper before the formation of the latent image, but the time required for this advance is until the original paper feeding start time, that is, the timing of resist crunch-on in step 575. Determine if it is longer than the time.

If the image movement time is greater than the sum of the value counted in the previous step 335 and 1020 m sec, the registration clutch is turned on in the next step S43, and after timing adjustment is performed in step S44, the process proceeds to step S49. If "No" is determined in step 341, the process proceeds to step S47, and the time difference is set in a resist clutch on timer (not shown). In this way, the travel time is the time of image bojin yong kaunk + 1020 m
If it is shorter than sec, write the time difference to a timer in RAM, count the timer in the interrupt routine described below, and if the timer counts up,
At that point, the resist clutch can be turned on.

On the other hand, if it is determined in the previous step S29 that it is not the first copy, the time (timing) to be measured in steps 331 to S4L has already been determined by the first copy. Therefore, in step S45, it is determined whether the moving time of the image is greater than the sum of the time counted in step S35 and 720 m5ec. This 720m5ec is 10 of step 7 S41.
The time required for changing the direction of the document table 14 set after step 353 from 20102O is 300 m sec.
This is the time during which the registration clutch should be turned on (in advance) earlier than the original paper feeding timing. In step S45, if the travel time is greater than the sum of the time counted in step S35 and 720 m5ec, the process proceeds to step S43; if it is smaller, the process proceeds to step 547 (therefore, step S4
If the determination in step S41 is "NO", that is, if the travel time is short, the subsequent timing is determined by the interrupt routine, as in the case of "No" in step S41.

In step 349, LED array 48 is turned on so that all LED elements 50 are lit. That is, the microcomputer 134 provides a signal for "all lighting" to the LED array 48.

When moving the image to the right, in order to prevent an image on the left side of the document 40, such as the image of the positioning plate 20, from being formed on the photoreceptor drum 46, that is, to erase an unnecessary electrostatic latent image, This causes the LED array 48 to be fully lit.

After that, in step S51, the light source 42 for irradiating (exposing) the document 40 with light is turned on, and since the light source 42 starts up slowly, the process proceeds to the next step S53 after a time of 200 m5ec, and in step S53, the process proceeds to the next step S53. As in step S29, it is determined whether the first sheet is a copy. 1
If it is the second copy, the light turned on in the previous step S51! Since the rise of 42 is slow, it takes an additional 300 m s.
After the stabilization time of ec has elapsed, the process advances to step S55.

In step S55, the charging corotron 48 is turned on and the feed clutch is turned on.

In the next step S57, it is determined whether the document table 14 has been fed to the image position. If the image position has not been reached, proceed to the next step 85.
At 9, the time from the home position to the image position is counted.

During continuous copying, the data counted in step S59 is used as image position data for moving the image to the right. If it is determined in step S57 that the image position has been reached, the process proceeds to the next step S61.

If it is determined in step S61 that it is not the trimming mode, in the next step 363, the LED array 48 that was turned on in the previous step S49 is turned off or extinguished. If it is determined that the trimming mode is in effect, the process proceeds to step 365, where the power LED array 48 is kept on, that is, all lighting is maintained, and in step S67, the microcomputer 134 selects the to determine whether masking mode is set. If it is determined that it is masking mode, the next step S
Proceed to step 69.

In step S69, the X coordinate positions of the trimming or masking points P1 and P2 set with the mouse 36 are checked. Specifically, the interrupt described below!
After the start of X coordinate detection is determined in Rechin, it is detected in the interrupt routine. Then, in step 371, the time required until the document table 14 finishes feeding is set on a counter. Thereafter, after a time of 420 m, sec, which corresponds to the normal paper feeding timing, has elapsed, the process proceeds to the next step S73.

In step 373, it is determined whether the image moves to the right, similar to the step knob S27. If the movement is to the right, the registration clutch has already been turned on to drive the registration rollers 70 in the previous step S43, so it is determined whether the registration rollers 70 are driven and the process proceeds to step S77.

If it is determined that the image is not to be moved to the right, that is, if the image is to be moved to the left, the time for leftward movement is counted in the next step S74, and then the registration clutch is turned on in step S75.

In step S77, when it is detected that the document table 14 has been fed to the return position, the next step S77 is performed.
Proceeding to 79, the return clutch is exhausted,
The exposure light source 42 is turned off, and the LED array 48 that was turned on in the previous step S49 is turned off.

In the subsequent step 581 (FIG. 16C), the microcombi coater 134 checks the sheet number counter and determines whether or not it is continuous copying.If it is continuous copying, the paper feed sensor is turned off in the next step S83, and then the previous copy is performed. Step S2
Return to 3. That is, for the second and subsequent copies, the process starts from step S23.

If it is determined in step S81 that it is not continuous copying, the process proceeds to step S85, and in the previous step S79, the return clutch is turned on or turned off. After that, the photoreceptor drum 4
The corotron 72 for post-charging takes a period of time (for example, 200 m5ec) for the latent image to be completely transferred to the recording paper 58.Then, the process advances to step S87, and in step S87, the paper ejection sensor detects the recording paper 58. It is detected that the switch is turned on when the paper is ejected, and the process advances to the next step S89.

In step S89, the main motor 96 is turned off after the time required to eject the recording paper 58 is 200 m5ec. The copying machine then goes into standby mode.

Next, the interrupt routine of this embodiment will be explained with reference to FIG. This interrupt routine is called at regular intervals by an internal timer of the microcomputer 134. In this interrupt routine,
It mainly determines the on timing of the registration clutch in the movement mode, and controls the lighting position and timing of the LED array 48 in the trimming or masking mode.

In the first step S101, the microcombi coater 134 determines whether the document table 14 is at the home position, similarly to the step knob 313 in FIG. 14A. If it is not the home position, the process directly proceeds to step 5105, but if it is the home position, the return clutch is turned off in step 5103, and then the process proceeds to step 5105.

In step 5105, it is determined whether or not the paper feed sensor is on, that is, if the recording paper 58 reaches the register roller 70.
Determine whether the conveyor has been built. And recording paper 5
When the conveyance of the paper sheet 8 is confirmed, the paper feed clutch is turned off in the next step 5107. Then step 511
Go to 1. If the previous recording paper has not been fed through Wi,
Since the paper feed sensor is turned off, the microcomputer 134 turns off the registration clutch in the next step S109, and then proceeds to step S111.

In step 5131, the mouse 36 selects ii! li
When the rightward movement of the I image has been set, it is determined in step S47 whether the time difference between the movement time and the start evening and timing of the electrostatic latent image has been set in the timer of the RAM. If the microcomputer 134 determines "YES" in step 5111, the microcomputer 134 determines whether the on-timer has timed up in step 5113. When the resist clutch on timer times out after several interrupt routines, the microcomputer 134 turns on the resist clutch in step 5115. That is, at this point, the paper feeding timing for moving the @ image to the right is determined.

In the next step 5117, the microcomputer 134 determines whether the trimming mode or the masking mode has been set and the detection of the X coordinate for controlling the LED play 48 has been started. This can be determined, for example, by setting a flag in step 569 (FIG. 16B) and by having the microcomputer 134 detect whether the flag is set.

When the start of X coordinate detection is determined, the next step S11
At 9, the microcomputer 134 determines whether the left corner of the area to be trimmed or masked has reached directly below the partial erase lamp or LED array 48. When the area to be trimmed or masked reaches this LED array 48, the microcomputer 134 lights up all the LED elements 50 outside the area in the trimming mode and inside the area in the masking mode. The LED array 48 is configured to light up all the ED elements 50 of the LED array 48.
give a signal to Thereby, in step S123, the LEDs required for trimming or masking are
Portions of the LED elements 50 of the array 48 are selectively illuminated.

If it is determined “No” in step 5119,
The microcomputer 134 performs the following step 5121
At , it is determined whether the right corner of the area to be trimmed or masked has reached directly below the LED array 48 . If this is detected in step 5121, the process proceeds to the next step 5125.
Proceed to.

In step 5125, the microcomputer 134 determines whether the mode is trimming mode or masking mode. 1-If rimming mode, step 5127
Then, all the LED elements 50 of the LED array 48 are turned on. Conversely, if the masking mode is selected, the L partially lit in step 5123
All the LED elements 50 of the ED array 48 are turned off. After these two steps 5127 or 5129 are completed, the microcomputer 134 completes the detection of the X coordinate in step 5131.

In the subsequent step 5133, the microcomputer 134 determines whether or not the counting of the positions at which the document table 14 is returned, which was started in the previous step 371, has started. Then, in step 5135, the length of the document in the direction of movement of the document table (including the margin)
The time required to feed the document table 14 is counted, and it is determined whether the stacking table 14 has reached the position where it is returned. If it is determined ``YES'' in this step S135, the microcombiner 134 turns off the feed cry f in the next step S137, and also turns off the feed cry f in the next step S137.
At step 39, counting of the feed positions ends.

In the subsequent step 5141, the microcomputer 134 determines that the image left movement mode is set based on No. 9 from the mouse 36, and the microcomputer 134 performs the next step 514.
At step 43, the LED array 48 is fully lit to erase unnecessary static and latent images due to the leftward movement, and at step 5145, the belt advertising corotron 47 (
(FIG. 2) is turned off to prevent the photosensitive drum 46 from being charged thereafter. After step 5145 is executed, the previous step 5133 and step 513
5, the process returns to the main routine shown in FIGS. 16A-16C.

In this way, according to the above-described embodiment, in the trimming mode or the 7 skinning mode, the LED array (partial erase lamp) is 480
Control the lighting area or range. Furthermore, when the movement mode is set, the microcomputer 134 controls the deviation between the image position and the paper feeding timing according to the movement amount based on the position data inputted from the °7 crosshair 36.

(g) Effects In the present invention, since the first pitch is set shorter than the second pitch, the area in which the calligraphy image is formed can be defined by the second pitch.

Therefore, the position specifying pitch for specifying the position of the document is shorter than the pitch of the point light sources that define the image forming area, and the resolution improves accordingly by arranging a large number of fine point light sources.

[Brief explanation of the drawing]

FIG. 1 is an overall external view showing an example of an electronic copying machine as an embodiment of the present invention. FIG. 2 is an illustrative cross-sectional view for explaining the internal structure of the embodiment shown in FIG. FIG. 3 is a perspective view of the LED array of this embodiment. The fourth section is the circuit diagram of the LED play. FIG. 5 is an illustrative structural diagram showing the mouse of the embodiment. FIG. 6 is an illustrative diagram for explaining the pulse generation mechanism of the mouse. FIG. 7A is an illustrative view showing an example of a key arrangement provided on the upper surface of the mouse. FIG. 7B is a perspective view of the mouse. FIG. 8 is a block diagram showing an example of the control system of this embodiment. FIG. 9A and FIG. 9B are illustrative views for explaining the trimming mode. FIGS. 10A and 10B are illustrative views for explaining the masking mode. FIG. 11A and FIG. 11B are illustrative views for explaining the movement mode. FIG. 12 is an enlarged view of the operation panel. FIG. 13 is an illustrative diagram for explaining when specifying a trimming/masking position using a mouse. FIG. 14 is an illustrative diagram for explaining the movement mode using the mouse. FIG. 15 is an illustrative view of the display panel when specifying a position with the mouse. 16A to 16C are flowcharts for explaining the operation of the - embodiment. FIG. 17 is a flow diagram for explaining the interrupt routine of this embodiment. 14... Thick stacking table, 36- Mouse, 46... Photosensitive drum, 48... LED array, 50... LED element, 70... Register roller, 124... Edit key,
126...Trimming/masking key, 128...
Movement key, 130...X key, 132 Y key, 134
...Microcomputer.

Claims (1)

[Claims] 1. In an electronic copying machine with an editing function capable of copying only a part of a document image, a position for moving on the document to specify the position of the document to be edited at a first pitch. and a document image forming device for forming a copy image on the photoreceptor by defining an area of the document specified by the position specifying device at a second pitch, An electronic copying machine with an editing function characterized in that the pitch is shorter than the second pitch. 2. The electronic copying machine with an editing function according to claim 1, wherein the position specifying means includes a roller having a rotating shaft equipped with a pulse generating means that generates pulses as the roller rotates. 3. An electronic copy with an editing function according to claim 1 or 2, which has a point light source that faces the photoreceptor and is continuously arranged at a second pitch in a direction that intersects the direction of movement of the photoreceptor. Machine.