JPS60239725A - Copying device - Google Patents

Abstract

PURPOSE:To copy a designated picture area to an operated copy area to automate copying by not only detecting the size of an original but also selecting a cassette corresponding to a magnification when the picture area and the copy area are designated and the magnification is operated. CONSTITUTION:When a key 565 is depressed, the magnification operating mode is indicated by lighting of an LED565S, and the size of an original 131 is detected automatically, and the size of a designated cassette 306 is displayed on a displat part 600. Then, the magnification of the copy area to the picture area is operated automatically and is displayed on a magnification display part 601. When an area selecting mode key 570 is depressed, the area to be copied is operated automatically and is displayed as a copy line 620; and when a picture area selecting key 575 is depressed, the picture area is operated automatically and a picture line 610 is displayed on the display part 600. When an original size selecting key 580 is depressed, the size of the original 131 is operated, and the size is displayed as an original initializing line 611.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a copying apparatus, and more particularly to a copying apparatus capable of copying a desired image area on a document at a desired position on copy paper of a desired size and at a corresponding magnification.

[Prior Art] FIG. 1 shows an example of a copying apparatus capable of copying onto ordinary paper using a photosensitive drum, in which 1 is a seamless photosensitive member whose surface is made of a photoconductive material, and is indicated by an arrow. This is a photosensitive drum that can be rotated in any direction.

During one rotation of the photosensitive drum 1, the photosensitive member is first neutralized by the exposure lamp 2, then corona charged by the primary charger 3, and has just rotated to position 4! 1! When exposed to light, an electrostatic latent image is formed.

After that, either the developing roller 5A or 5B is selected according to an instruction in the developing unit 5, and visible development is performed with toner, and then the proper timing is applied from the cassette 8A or 8B via the registration roller 7. The image is transferred onto copy paper 312 which is picked up and fed onto drum 1 by transfer charger 8 . In addition, 8A and 8
B is a paper feed roller that feeds paper 312 from the cassettes 8A and 6B.

After the transfer, the copy paper 312 is separated from the drum 1 by the separation charger lO, guided by the conveyor belt 11 to the fixing roller 12, where it is thermally fixed by pressure heating, and then transferred to the roller 13 and then to the discharge roller 14. Tray 15 through
is discharged.

On the other hand, after the transfer paper is separated from the photosensitive drum 1 by the separation charger 10, the toner is cleaned by a brush or the like in the toner collector 1B, and the charge is removed by the pre-exposure rub 2 again, and the next copy is made.

17 is interposed between the roller 13 and the paper discharge roller 14.

For normal transfer, use flapper 17.
is located at the position indicated by the dotted line, so that the copy paper 312
is guided toward the tray 15, but in the case of multiple transfer, the flapper 17 is moved to the position shown by the solid line and stored in the multiple transfer tray 18, and then from there the sheet is guided to the registration roller by the paper feed roller 18. 7, and again guided to the transfer position on the drum l, that is, between the transfer charger 8, and the transfer and fixing steps are repeated. In addition,
20 is a blank exposure device for preventing unnecessary toner from adhering to the drum 1, and has a subdivided structure.

Next, a device for optically reading an image from a document and a device for irradiating the image onto the drum 1 will be described. 31 is an original for copying placed on a glass original table 32, and 33 is an original pressure plate covered on the upper surface of the original i31. The light reflected from the original 31 can be effectively obtained by the original pressure plate 33.

Reference numeral 34 designates an illumination lamp that is integrally constructed with the first scanning mirror 35 and operates in the scanning direction.Furthermore, the second reflection mirror 36 is integrated with a third reflection mirror 37, and these mirrors 36 and 37 are integrated with the first scanning mirror 35. Since the scanning mirror 35 and the like are configured to be moved at half the scanning speed, the optical path length until reaching the fixed lenses 3B and 311 is always maintained at one length during scanning.

40 is a line sensor composed of a CCD memory that inputs the reflected light image on the original 31 obtained through the lens 38; at the same time, the reflected light image is reflected by the fourth reflecting mirror 41 through the lens 38; The latent image is projected onto the latent image forming position 4 on the photosensitive drum 1.

Further, 42 is a standard white board used to correct variations in the amount of light and pixels when reading an image by the CCD sensor 40, and 43 is a standard black board for detecting the edge of the original 31.

However, conventional analog copying devices, including Carlson process copying machines configured as described above, do not have the ability to copy a desired image area arbitrarily selected on a document onto a desired copying area arbitrarily selected on copy paper. Moreover, it has been impossible to freely change the magnification between the image area and the copy area to perform the above-described copying.

[Objective] An object of the present invention is to provide an image area specifying means on a document, a copying area specifying means on a copy paper, an image area displaying means, and a copying area displaying means, in order to solve the above-mentioned problems. The image area specified by the image area specifying means is displayed on the image area display means, and the copy area specified by the copy area specifying means is displayed on the copy area display means, thereby making it possible to calculate the magnification of the copy area with respect to the image area. The purpose of this invention is to provide a copying device.

Another object of the present invention is to further provide a document detection means, a document movement means, a lens movement means, a cassette movement means, a cassette selection means, and a registration roller timing control means,
When the image area and the copy area are designated by the image area designation means and the copy area designation means and the magnification is calculated, the document detection means detects the size of the document, and the cassette selection means selects a cassette corresponding to the magnification. and drives at least one of the original moving means, the lens moving means, the cassette moving means, and the registration roller timing control means to provide a copying apparatus capable of copying a specified image area to a calculated copying area. There is a particular thing.

〔Example] The present invention will be described in detail below based on the drawings.

Note that in the following description of parts having the same functions as those in FIG. 1, reference will be made to FIG. 1, and the same reference numerals will be used.

FIG. 2 shows an example of the configuration of a document coordinate detection device according to the present invention. In this example, the surface of the document pressure plate 133 on the side facing the document table 132 is made of a color with low reflectance, for example, black. Also,
A CCD sensor 140 captures a reflected light image from a document 13.1 held between a document table 132 and a pressure plate 133 through a lens 13.
In this example, the output from the CCD sensor 140 is amplified by the amplifier 141.

The A/D converter 142 converts it into a digital value.

This digital value is compared with the standard value read from the standard white board 42 shown in FIG.
Binarizes the image into white or black.

Now, as shown in Fig. 83, the original 131 is placed on the original platen 1.
32, the CCD
The reflected light image is read by the pixels of the sensor 140 along the Y-axis, and by optical scanning in the X-axis direction, the above-mentioned binary signal is used to first detect black for each Y-axis line. You can see the coordinates of the position where the color changed from white to white, and the coordinates of the position where it last changed from white to black.

That is, the shaded area in FIG.
This is a portion where the reflected light is black because the surface of a document pressure plate 133 (not shown) covered on the top surface is black or the like. Therefore, in the B-W detection circuit 145 shown in FIG. 2, based on the binary signal from the binarization circuit 144, the Y coordinate of the position where black first changes to white on the Y axis line and the B-W maximum value detection circuit 146 uses these X and Y coordinate components as position detection signals.
and is output to the B-W minimum value detection circuit 147.

Now, when scanning in the X-axis direction is performed, if we trace the trajectory of the position where the color changes from black to white in FIG. At first, the color changes from black to white, and then the Y coordinate of the change position gradually decreases until it reaches the minimum value 'Y,,'ev at the corner point 131B. Then the Y coordinate increases to corner point 1
At 31G, the maximum value Y, .

Therefore, the maximum value detection circuit 14B detects the corner point 131C and outputs the detection signal (X+, Y information), and the minimum value detection circuit 147 detects the corner point 131B and outputs the detection signal (X31C).
Y, N-+l1l) is shown in the diagram, and fx icPU two outputs can be obtained.

Similarly, the B detection circuit 148 shown in FIG. 2 detects the X and Y coordinates of the position where the color last changed from white to black based on the binary signal from the binarization circuit 144, Y
Use the coordinate components as the position detection signal.

Then, the signal is outputted to the G-B maximum value detection circuit 148 and the G-B minimum value detection circuit 150.

Therefore, these detection circuits 148 and 150 detect corner points 131D and 131A, respectively, and output a detection signal (X
2 +Yrw-ve) 8yol/(Xis +Ysm-
we) can be output to r, pυ.

In this way, it is possible to cause the CPU (not shown) to perform various calculations as will be described later based on these position detection signals, and to operate the control device for obtaining proper copies.

Next, with reference to FIGS. 4 and 5, a method of calculating the amount of displacement performed for the above-mentioned positional displacement of the original 131 will be explained.

FIG. 4 shows a case where the original 131 is placed diagonally in the same state as in FIG.
indicates the normal reference position in which it should be placed.

First, in the controller, Ynw-IN, YPIIN, l
When the position coordinates 111 are different, it is determined that the document is placed diagonally.

Therefore, the deviation angle θ1 at this time is jan-(Yyuw-
Y+w, ew/X,
YMIN 0wd-YMIK-vu/X IX3
) The force can be judged by the negative value Tonarukoto.

Further, the example in FIG. 5 shows a case where the original 131 is placed offset in the counterclockwise direction with the corner point 131B as the center.

In this case, the deviation angle θ2 can be expressed as jan' (Y+y information-Yi, W/XI X3), and jan'
(Yo, ~-Yi, ~/Xi

Thus, in order to correct the position of the document 131 placed in this way, in the case of FIG.
All you have to do is move it counterclockwise by 01 degrees.
Also, in the case of Fig. 5.

The document 131 may be rotated clockwise by an angle of 02 around the corner point 131B.

In this way, after correcting the orientation angle of the original 131,
To move the document further to the reference position, use the document moving device again to move the document 131 in the X-axis direction by a distance x 3 in the case of FIG.
．． In the case of FIG. 5, it is sufficient to move by distance X3. All you have to do is move Y... in the Y-axis direction.

Note that the size of the original document 131 can also be calculated. That is, in the case of FIG. 4, the longitudinal dimension XL of the document 131-'- can be determined by (X+X3)Cosθs and Lz, and the width direction dimension vB can be determined by
Y KIN 6B Y) It can be expressed as Cosθ. Moreover, in the case of FIG. 5, xL can be similarly determined as (X+ -Y3)Cosθ2 +YB as (-1-YY4y)Cosθ2.

Next, the document moving device will be explained with reference to FIGS. 6(A) and 6(B). FIG. 8(A) shows a moving mechanism incorporated inside the document pressure plate 133, where 201 is shown in FIG. 8(B).
) is a stepping motor for rotating the document moving member 202, and 203 is the stepping motor 20.
This is a holding member that holds 1.

This holding member 203 is movable laterally along a guide groove 204A of a traveling member 204, and a wire 208 stretched between pulleys 205A and 205B.
By connecting both ends to the holding member 203, it is possible to move in the Y-axis direction by a stepping motor 207.

208 is a guide groove for moving the running member 204 in the X-axis direction, and by connecting both ends of a wire 210 stretched between the pulleys 208A and 208B to the running member 204, the running member 204 is moved by the stepping motor 211.
can travel in the X-axis direction.

Further, the holding member 203 has a magnet 212, and when the magnet 212 comes into contact with a reed switch 213 provided on the traveling member 204, the switch 213 is closed, and the X-axis home position is detected, and at the same time, the stopper 214 Positioned by Further, the running member 204 has a magnet 215, and when the magnet 215 comes into contact with the reed switch 21B, the switch 2
16 is in the closed state, the Y-axis home position is detected, and at the same time positioning is performed using the stopper 217. Note that 218 indicates a home position in which positioning has been performed in the X-axis and Y-axis directions.

220A to 220D are support columns for the document pressure plate 133;
When there is no need to correct the position of the document +31, the support columns 220A to 220D are retracted and stored in the outer shell 133A forming the document pressure plate 133. When it is necessary to move the document 131 to correct its position, the support columns 220A to 220D are driven by a drive means (not shown) in response to a document pressure plate movement signal from a CPU (not shown) to move the pressure plate outer shell 133A. is lifted upward to keep only the document moving member 202 in contact with the document 131.

FIG. 7 shows the configuration of the drive circuit of the document moving device. 230
is a controller, and the controller 230 receives a signal S as rotation data such as rotation angles θ1 and 02 for correction, a movement data signal Sx indicating the amount of movement in the X-axis direction, and a movement data signal Sx indicating the amount of movement in the Y-axis direction. Instructing movement data signal SY
Also, home position detection signals SHx and SHY in the X-axis and Y-axis directions are supplied.

Therefore, the controller 230 first initializes the document moving device based on the home position detection signals SHx and SHY, and first drives the support columns 220A to 220D via the driver 231 to lift the document pressure plate.

Next, when it is necessary to correct the angular deviation of the document 131, a rotation signal E is sent via the driver 233 depending on whether the rotation is clockwise or counterclockwise based on the data signal ST.

F; E and F are supplied to the stepping motor 201 to rotate it, and a necessary angle correction circuit of the moving member 202 is executed.

Furthermore, when movement correction is required in the X-axis direction and the Y-axis direction, based on the data signals Sll and SY,
In the case of X-axis movement, rotation signals A,
B; A, B signals are supplied to the stepping motor 211 to rotate it forward or backward, and the traveling member 204 is moved in the X direction.
In addition, in the case of movement in the Y-axis direction, the rotation signals C, O; σ, 'rJ are sent to the stepping motor 2 via the driver 236.
07 and rotate it forward or backward, moving the holding member 203 in the Y direction, and moving the document 131 along the X and Y axes.

Next, a cassette moving device that makes it possible to move and transfer a copy image in the axial direction of a photosensitive drum will be described with reference to FIG.

Here, 30B is a cassette that is movable in the axial direction of the photosensitive drum 1 shown in FIG. 1, and 308A is a cassette support mounted on the cassette 30B.

Pulleys 307A and 30
Both ends of the wire 308 stretched between the cassette 306 and the cassette 307 are connected to each other, and the stepping motor 309 drives the pulley 307B so that the cassette 306 can be moved along the guide groove 310.

Reference numeral 311 is a paper feed roller that feeds the copy paper 312 from this cassette 308, and 313 is a roller rotation shaft that holds the paper feed roller 311 in a movable state in the axial direction. Therefore, the cassette support stand 30 is attached to the paper feed roller 311.
The other end of a lever 314 whose end is fixed is lightly abutted against the lever 314, and when the cassette 306 is moved along the guide groove 310, the paper feed roller 311 and the lever 3
14 to respond in the same direction.

Furthermore, 315 is a shielding plate attached to the cassette support stand 308A, and 316 is a photointerrupter arranged on the housing 317 side of the device.
The home position of B is detected and positioned by the stopper 318.

FIG. 9 shows an example of the configuration of a drive circuit of a cassette moving device, where 330 is a controller. This controller 330 is connected to the cassette 30 via an operation section to be described later.
The movement data signal Sc regarding the movement amount of 8 and the home position detection signal SH from the photo interrupter 318
c.

In this way, the controller 330 executes initialization using the detection signal S), and inputs L to either forward or reverse rotation signal to the stepping motor 309 via the F line/<331 based on the data signal Sc. Supply, cassette 3
08 movements can be executed.

Next, the lens moving device will be explained with reference to FIG. 1θ.

Here, 438 is a zoom lens disposed in the irradiation optical path toward the drum 1 (see FIG. 1), and in this figure, the Y axis is the direction of the irradiation optical path, and the Y axis is the axial direction of the drum 1. The zoom lens 438 is installed on a lens stand 440, and the lens stand 440 is movable along a guide groove 441, and both ends of a wire 443 stretched between pulleys 442A and 442B are attached to the lens stand 440. By concatenating
A stepping motor 444 allows the lens stand 440 to be moved in the X-axis direction.

Furthermore, 445 is a lens rotating member capable of linear movement in the Y-axis direction, and one end of the rotating member 445 is slidably held in a guide groove 446 to prevent the lens stand 440 from moving in the X-axis direction. When the lens 439 is rotated, linear movement of the member 445 in the Y-axis direction causes the lens 439 to rotate around its optical axis 439A, thereby changing the magnification of the lens 439.

447 is a magnet attached to the lens stand 440, 448
is a reed switch, and when the magnet 447 contacts the reed switch 448, the contact is closed and the home position in the X-axis direction is detected, and the stopper 4
48.

Note that all the devices described above are installed on the traveling member 450. Thus, the pulley 4 is attached to this running member 450.
Both ends of a wire 452 stretched between 51A and 451B are connected, and a stepping motor 453 drives a pulley 4.
51B to make the member 450 movable along the guide groove 451.

454 is a magnet attached to this traveling member 450;
55 is a reed switch, and when the magnet 454 contacts the reed switch 455, the contact is closed, thereby detecting the home position in the Y-axis direction, and positioning is performed by the stopper 458.

FIG. 11 shows an example of the configuration of the drive circuit of the lens moving device. Here, 460 is a controller, and the controller 460 is provided with an X-axis movement data signal Sε2 related to the magnification of the image, a Y-axis movement data signal Ss related to the movement of the image in the drum axis direction, and a reed switch 44 via an operation unit to be described later.
An X-axis home position detection signal SLX from 8 and Y-axis home position detection signals S and Y from reed switch 455 are supplied.

In this way, the controller 480 executes initialization using the detection signals S, ,
, σ, ■, and the X of the lens 438 shown in FIG.
The magnification of the copied image can be changed by moving in the axial direction and rotating around the optical axis 439A.

In addition, if the designated data relates to image movement, the rotation signal I, J, or D2 is supplied to the stepping motor 453 via the driver 463, and the lens 43 is
Image shifting can be performed by laterally moving 8 in the Y-axis direction.

As is clear from the above description, the copy image can be moved in the axial direction of the photosensitive drum 1 using any of the document moving device, the cassette moving device, and the lens moving device.

That is, FIG. 12 shows a case where the image is shifted in the axial direction of the drum 1 by the document moving device. In this case, by moving the document 131 to the position indicated by the broken line in the axial direction, the reflected light image is shifted to the lens. 439, the image is formed on the drum 1 at the position indicated by the broken line, and a copy image 312A is obtained by shifting to the position indicated by the broken line on the copy paper 312.

FIG. 13 shows a case where a similar shift is executed by a cassette moving device. In this case, by moving the cassette 308 to the position shown by the broken line, the copy paper 312 stored in the cassette 306 is moved to one point on the drum 1. Since the paper is fed to the position shown by the chain line, a copy image 312A is obtained on the copy paper 312 at the position shown by the solid line.

Further, FIG. 14 shows a case where the image is shifted by a lens moving device. In this example, there is no need to move the original 131 and the cassette 30B, and only the lens 438 is moved in the axial direction of the drum l. Therefore, copy paper 312
A copy image 312A can be obtained at the position indicated by the broken line.

Next, the copy image 312A is scanned in the scanning direction, that is,
To shift in a direction perpendicular to the axis of drum l, use the 15th
This is also possible by adjusting only the registration timing of the registration rough as shown in the figure. In the conventional case, the leading edge of the image is aligned with the copy paper 312 by driving the registration rollers 7 after a certain period of time of scanning starting from the leading edge 1' 31L of the original 131.

Note that m here is the scanning distance until the registration roller 7 is driven with a certain time delay.

Therefore, when moving the copy image 312A to the leading edge of the copy paper 312, the registration roller 7 is driven at a timing that is longer than the above-mentioned fixed time, and the copy image 312A is moved to the rear end of the copy paper 312. When moving the registration roller 7 to the side, the registration roller 7 may be driven at a timing faster than a certain period of time.

Therefore, by driving the registration roller 7 once at an accelerated timing such as, for example, advancing the copy paper 312 by the dimension text, the image on the original 131 can be moved to a position P' close to the trailing edge on the copy paper 312. I can do it.

In this case, the image can be moved to a similar position P' on the copy paper 312 by moving the original 131, for example, to the left in this figure by the dimension text using the original moving device.

Note that it goes without saying that the adjustment of the registration timing described above and the movement of the document 131 by the document moving device may be used together.

Next, with reference to FIGS. 17 and 18, an explanation will be given of the operation section that enables operations such as document area and copy area setting and magnification designation of the copying apparatus of the present invention, and the display section on which these are displayed.

That is, in the present invention, by operating various keys provided on the operation unit 500, the position and size of the original and copy paper, as well as the image area can be displayed on the display unit, and at the same time, the magnification selection and calculation keys can be displayed. , and other various mode keys, various modes can be executed.

In FIG. 17, 501 is a magnification designation key, and 502 and 503 are magnification increase keys and magnification reduction keys. First, by pressing the designation key 501 to designate the magnification, and then operating the key 502 or 503, The magnifications are increased or decreased, and these magnifications are displayed on the display section 80 shown in FIG.
It is displayed as a number on the magnification display section 601 of 0.

510 is a group of desired area designation keys; 511 is a document area designation key; 512 is a copy area designation key;
Reference numerals 13 and 514 indicate light emitting diode LEDs for displaying document designation and copy designation, respectively.

Furthermore, 515 to 5 provided on the top of these keys
Reference numeral 22 denotes an operation key that can freely move the original line 810 and the copy line 620 displayed on the display section 600 left and right and up and down.

Therefore, when specifying the document 131 to a desired area,
First, when the document area designation key 511 is pressed, the LED 513 that displays the designation lights up, and the LED 514 remains off, so the keys 515 to 522 are then operated to move the document line 610 to the desired position. It can be an area.

That is, when the line designation key 515 is pressed, the display section 8
In 00, among the rectangular frame lines of the original line 610, movement of the left frame line 810L is LE.
This is displayed by lighting D5159. Then, by pressing the line operation key 517, the frame line 131OL
By pressing the line operation key 518, the frame line 610L can be moved to the left and the frame line 610L can be moved to the right.
The frame line 810L is displayed numerically as shown in FIG.

Similarly, when the line designation key 516 is pressed, the movement of the frame line BIOR on the right side of the original line 810 is displayed on the display unit 800 by lighting the LED 518S, and the line operation key 51? And by pressing 518, frame line 6
10R can be moved leftward and rightward, and the display section 800 displays this in the same manner as described above.

Furthermore, by pressing the line designation keys 515 and 518 at the same time, the frame lines 610L and 610R can be returned to the original initialization lines 811L and 611R.

Next, the upper frame line 610U and the lower frame line 6! of the original line 610! To move the OD, line designation keys 519 and 520 are operated. In this way, the frame line 610U can be moved upward and downward by pressing the line operation key 521 and 522 with the line specification key 518 pressed and the LED 511]S lit. Press 520 and press line operation key 5 while LED 520S is lit.
By pressing 21 and 522, the frame line 8100
can be moved upward and downward.

Note that the amount of movement and the moved positions of the frame lines 610U and 810D are displayed on the display unit 800. Also,
By pressing line designation keys 518 and 520 simultaneously, these frame lines eiou and 8100 can be initialized to the positions of initialization lines 811υ and 811D.

The case of specifying the document area has been described above, but in the case of specifying a copy area, by pressing the copy area specifying key 514, the specification is displayed by lighting the LED 514, and the LE0513 is kept in an unlit state.

Therefore, when moving the left frame @ 1320L of the frame line 820 of the rectangular copy line shown on the display section 600, press the line designation key 515 and press the line operation keys 515 and 518 in the same manner as described above. For the right frame line 820R, the same operation can be performed by pressing the line designation key 51B.

Also, when moving the upper frame &1B20υ and the lower frame 1[8200 of the frame line θ20, specify the line.

This is done by pressing keys 518 and 520 and operating main line operation keys 521 and 522. Also, by simultaneously pressing the line designation keys 515 and 516,
Initialize frame lines θ20L and 820R, copy line 821
1j-j and 821R (by moving to the p position and pressing the line designation keys 518 and 520 simultaneously, the frame line 62
0U and 620[ll can be initialized to the positions of initialized copy lines 621U and 821D.

A document detection key 530 detects the size of the document.

When the original detection key 530 is pressed, the optical scanning device,
In other words, in the example of Fig. 1, the light source lamp 34° mirror 35.3
B.3? A device including the lens 38 and the lens 38 performs pre-scanning, and the COD line sensor 40 detects the position of the document 131, and the position can be displayed on the display section 800.

Therefore, if there is a deviation in the position or orientation of the N document 131,
Through the controller 230 shown in FIG. 7, the document moving device can return the document 131 to its normal position.
In this case, the document size is displayed on the display section 800 as an initialization line 811, and at the same time, its length and width dimensions can also be displayed numerically. Thus, the display section 6
For example, the size is 0 in the document size display area 602 of oo.
It is displayed as R-A4.

540 is a cassette display key; cassette display key, -
540 is pressed, the size of the copy paper 312 stored in the selected cassette 306 is displayed on the display section 8oo as a copy initialization line 821, and at the same time, its length is displayed in units of 1, and the size name is also displayed. It is displayed on the cassette size display section 6tQ3.

Reference numeral 545 is a switching key for the developing device 5 (see FIG. 1), which allows switching to either the developing roller 5A or 5B, and the switched color is displayed on the color display section 804 of the display section 800. will be displayed.

550 is a multiple mode key;
By pressing this button, the switching flapper 17 shown in FIG.

The data can be sent to step 18 to execute the next multiple copy.

560 is a group of keys for car selection mode.

That is, 565 is an automatic magnification calculation key, and when this moving magnification calculation key 585 is pressed, the magnification of the copy area on the copy paper 312 with respect to the image area on the original 131 is calculated, and the magnification is displayed.

In other words, when the key 565 is pressed, the magnification calculation mode is indicated by the lighting of LE0585S and the other lights in the same column.
In this case, the size of the original 131 is automatically detected, and the specified copy paper 31 is
2, that is, the size of the cassette, ) 30B (see FIG. 8) is displayed on the display section 600.

Therefore, assuming that a desired image area on the original 131 and a desired copy area on the copy paper 312 have been specified by the handler by various operations on the group of desired area specifying keys described above, and the key 565 is pressed. The magnification of the copy area with respect to the image area is automatically calculated, and the magnification is displayed on the magnification display section 801.

In this case, the x:Y ratio for the previously designated area is stored in the CPU (not shown), and when specifying the area later, the x:Y ratio of the previously stored area is stored. Line 610 or line 620 moves corresponding to the ratio of .

570 is an automatic copy area selection key. Pressing the key 570 indicates that the copy area automatic selection mode is active.
This is indicated by the lighting of ED 570S and the turning off of other LEDs in the same row. In this case, the size of the original 131 is automatically detected, and the size of the specified copy paper, that is, the cassette, is also displayed on the display section SOO. be done.

Therefore, when the handler specifies a desired image area on the document 131 and specifies the magnification by operating the magnification designation key 501 and magnification change keys 502 and 503, and presses the area selection mode key 570, The area to be copied on the copy paper 312 is automatically calculated and displayed as a copy line 620.

shown.

In this case, further press the copy area key 512,
It goes without saying that by operating the keys 515 to 522, it is possible to move the copy line 620 vertically and horizontally while keeping it in this state.

575 is an automatic image area selection key. By pressing the key 575, the image area automatic selection mode is indicated by the lighting of LED 5?5S and other lights in the same row.
This is displayed by turning off the ED, and in this case as well, the size of the document 131 is visually detected, and the size of the specified copy paper 3!2 is further displayed on the display section 800.

Therefore, when the operator specifies the copy area and magnification on the copy paper 312 and presses the image area selection key 575, the image area on the document 131 is automatically calculated and the image line 810 is It is displayed on the display section 800.

In this case, by further pressing the document area key 513 and operating the keys 515 to 522, it is possible to move the image line 810 vertically and horizontally while maintaining its shape.

Reference numeral 580 is an original size selection key, and by pressing the key 580, the status of the original size selection mode is indicated by lighting up the LED 580S and turning off the lights 1 and ED in the same row. Only the size of the copy paper 312 that has been selected is displayed on the display section 600.

Therefore, when the handler specifies the copy area to be obtained and the magnification on the copy paper 312 and presses the document size selection key 580, the corresponding document
31 is calculated, and the original initialization line 611
The size is displayed as .

Note that the image area on the original document 131 and the copy area on the copy paper 312 can be set automatically or manually by the key operations on the operation unit 500 described above. Copying the image area to the copy area can be accomplished using a series of means such as the document moving device, lens moving device, and force setting moving device described above.

Further, by operating the developer switching key 545 to specify the color for copying, or by operating the multiplex mode key 550, the copy paper 312 is temporarily held in the intermediate tray 18 and the next specification is made, thereby editing the image. Furthermore, it is also possible to specify a color each time a copy is made.

590 is an automatic cassette selection key. Pressing the key 590 indicates that the cassette automatic selection mode is present.
This is displayed by turning on the D590S and turning off the other LEDs in the same row, and in this case, only the automatically detected document size is displayed on the display section 600.

Therefore, the handler specifies the image area on the document 171 and the magnification, and then presses the automatic cassette selection key 590.
When is pressed, the optimum size of copy paper 312 that meets these conditions is automatically calculated, and the cassette size containing copy paper 312 of that size is displayed on cassette display section 603.

In addition, if there is no such cassette size, only the copy line 621 corresponding to the size is displayed and the L
ED 580S is flashed.

In the above explanation, the case where the document size is detected by a combination of an optical scanning device and a CCD line sensor 40 has been explained, but in this case, as mentioned above, pre-scanning before copying is required. Ru. Therefore, an area sensor (not shown) can be used in addition to the CCN sensor 40 and the optical scanning device.
It is possible to obtain the position of the original 131 by pressing the original detection key 530, and to correct the position by driving the original moving device while checking the positional deviation displayed on the display unit 600. Needless to say.

As described above, the operation unit 500 not only allows inputting the selection of the size and position of the image area and the copy area, the setting of the magnification, and the execution of calculations related to these before copying, but also allows inputting the selection of the dimensions and positions of the image area and the copy area, as well as the execution of calculations related thereto.

Since the size and position of the document 131, the cassette size, etc. are all sequentially displayed on the display unit 600, the original 13 is
The position and size of the document 131 can be detected, and the position and size can be displayed on the display unit 800. If the document 131 is in an incorrect position, the start of copying is suspended for a certain period of time regardless of whether the copy key is pressed. It is also possible to issue a warning to the operator and ask him/her whether or not to make the correction.

Therefore, if the document moving device is not driven or manually moved to move the document pressure plate 133 within a certain period of time, it is assumed that the handler has acknowledged the incorrect position, and the copying operation is automatically started or copying is performed again. It is also possible to start the operation only when a key is pressed.

Furthermore, it is possible to add standard F\RMAT sentences, pages, dates, etc. to the copying apparatus of the present invention using, for example, an internal eraser.
Once the image read by the CCD is displayed on the CRT,
It is also possible to specify an image area on the RT, and it goes without saying that it is possible to write an image read by a CCD, such as in an LED printer, using an internal eraser or the like.

It is also possible to set various areas to predetermined dimensions and select from among the designated areas.

[Effect 1] As explained above, according to the present invention, an image area specifying means, an image area display means for displaying the area specified by the area specifying means, a copy area specifying means,
Since the copy area display means for displaying the area designated by the copy area designation means is provided, the magnification is calculated from both the image area and the copy area displayed on these area display means to execute copying. became possible.

Furthermore, according to the present invention, in addition to the above, document coordinate detection means, document movement means, lens movement means, cassette movement means, cassette selection means, and registration roller timing control means are provided, and the document coordinate detection means detects the position of the document. detecting the position and size, selecting the copy paper size, that is, the cassette size, via the cassette selection means based on the specified magnification, and selecting at least one of the original moving means, the lens moving means, the cassette moving means, and the registration roller timing control means. The image area can be copied to the copy area at the magnification calculated above by driving the two.

[Brief explanation of the drawing]

FIG. 1 shows an example of the configuration of a conventional copying machine. ! !
2 is a configuration diagram showing an example of the document coordinate detection device of the copying apparatus of the present invention, FIG. 3 is an explanatory diagram showing an example of coordinates input to the document coordinate detection device, and FIGS. 4 and 5 are FIGS. 6(A) and 6(B) are explanatory diagrams each showing an example of input coordinates when the original is deviated from the normal position, and FIGS. FIG. 7 is an explanatory diagram showing an example of the structure of the drive circuit of the document moving device together with its operation, and FIG. 8 is a model diagram showing an example of the structure of the cassette moving device of the copying apparatus of the present invention. FIG. 9 is an explanatory diagram showing an example of the configuration of the drive circuit of the cassette moving device together with its operation, FIG. 10 is a model diagram showing an example of the configuration of the lens moving device of the copying apparatus of the present invention, and FIG. 11 is the lens movement. FIGS. 12, 13, and 14 are explanatory diagrams showing an example of the configuration of the drive circuit of the device along with its operation, and show how the copying device of the present invention moves the image on the copy paper from the image position on the document in the direction of the drum axis. Figures 15 and 16, which are schematic diagrams showing three examples of the procedure, respectively, show two examples of the procedure for moving the image on the copy paper from the image position on the document in a direction perpendicular to the drum axis using the copying apparatus of the present invention. FIG. 17 is a model diagram showing an example of the key arrangement of the operating section of the copying apparatus of the present invention, and FIG. 18 is a display section of the copying apparatus of the present invention and its display section. FIG. 3 is an explanatory diagram showing an example of displayed figures and data. 1... Photosensitive drum, 2... Exposure lamp, 3.8.10... Charger, 4... Exposure position, 5... Developing device, 5A, 5B... Developing roller, 8. 8A, 8B, 30Ei...Cassette, 308A・
...Cassette support base, 7.. Registration rollers, 9A, 9B.. Paper feed rollers, 11.. Conveyance belts, 12.. Fixing rollers, 13.. Rollers, 14.. Paper discharge rollers. , Process 5...tray, 16...toner collector. 17... Flapper, 18... Tray, 19... Paper feed roller, 20... Blank exposure device, 31.131... Document, 131A, 131B, 131G, 1310... Corner point,
131L... Image tip, 32, 132... Original table, 33.133... Original pressure plate, 133A... Outer shell, 34... Illumination lamp, 35.3B, 37.41... Mirror , 38.39・
...Lens, 40...Line sensor, 42...Standard white board, 43...Standard blackboard, 138...Lens, 140...Sensor, 141...Amplifier. 142... A1.0 converter, 143... Correction circuit, 144... Binarization circuit, 145... B-W detection circuit, 14fi... B-W maximum value detection circuit, 147...・・B
- W minimum value detection circuit, 148... W-B detection circuit, 149... W-B maximum value detection circuit, 150... W-8 minimum value detection circuit, 201... Stepping motor, 202. ...Document moving member, 203... Holding member, 204... Traveling member, 204A, 208... Guide groove, 205A, 205B, 209A, 20! lie...Pulley, 208.210...Wire, 207.211...Stepping motor, 212.2
15...Magnet, 213.216...Reed switch. 214.21? ...Stopper, 218...Home position, 220A-220D...Support column, 230.330,480...Controller, 231.
233,235,331.481,483...Driver, 307A, 307B...Pulley, 308...Wire. 308...Stepping motor, 310...Guide groove, 311...Paper feed roller, 312...Copy paper, 312A...Copy image, 313...Roller rotation shaft, 314...Lever, 315... Shime plate, 316... Photo interrupter, 317... Housing, 318... Stopper, 438... Zoom lens, 439A... Optical axis, 440... Lens stand, 441... ...Guide groove, 442A, 442B...Pulley, 443...Wire, 444...Stepping motor, 445...Lens rotating member, 446...Guide groove, 447.454...Magnet, 448, '455...Reed switch, 44fl, 4
58... Stopper, 450... Running member, 451... Guide groove, 451A, 451B... Pulley, 452... Wire, 453... Stepping motor, 500... Operating unit, 501. ...Magnification specification key, 502...Magnification increase key, 503...Magnification reduction key, 510...A group of area specification keys, 511...Original area specification key, 512...Copy area specification key, 513 .514, 515S, 518S, 519S, 52
0S...Light emitting diode (LED), 515.518.51!3,520...Line specification key, 517.518,521.522...Line operation key, 530...Original detection key, 540. ...Cassette display key, 545...Developer switching key. 550...Multiple mode key, 560...Group of selection mode keys, 565...Auto magnification calculation key, 5e5A, 57oA, 575Ajsos, 5aos...
・LED, 570...Automatic copy area selection key, 57
5... Automatic image area selection key, 580... Original size selection key, 580... Automatic cassette selection key, 600... Display section, 601... Magnification display section, 802... Original size display 803...Cassette size display section, 604...-Color display section, 810...Document line, 810L, 810R, 810U, 8100...Frame line,
611.811L, 811R, EIIIU, 8110・
...Initialization original line, 820...Copy line, 620L, 82OR, 820U, 8200...Frame line,
821, 821L, 621R, 8210, 8210...
- Initialization copy line. O-1 ÷ supply cD<- Ni () difference, 1 +- 1t↓ Gong Figure 12 Figure 15 Figure 16

Claims (1)

[Claims] l) Image area designating means for designating an image area on a document, copying area designating means for designating a copying area corresponding to the image area on copy paper, and a copying area designated by the copying area designating means. 1. A copying apparatus comprising: magnification calculation means for calculating a magnification of a copy area designated by said image area designation means. 2) Image area designation means for designating an image area on a document; copy area designation means for designating a copy area corresponding to the image area on copy paper; and calculating a magnification of the copy area with respect to the image area. a document detecting device for detecting the position and size of the document, a document moving device capable of moving the position of the document, a movable optical system, and a cassette containing the copy paper movable. A cassette moving means and a registration roller timing control means capable of controlling the timing of the registration rollers are provided, and at least one of the original moving means, the optical system, the cassette movement means, and the registration roller timing control means is provided. A copying apparatus, characterized in that the copying apparatus is driven to copy the image area to the copy area based on the calculated magnification. (Hereafter, margin)