JPS60239720A - Copying device - Google Patents

Abstract

PURPOSE:To move a copy area to a desired position on a copy paper and to copy an original by displaying the copy area corresponding to a magnification when the magnification is designated for a picture area, which is designated by a picture area designating means, by a magnification designating means. CONSTITUTION:A CCD sensor 140 forms the reflected optical image from an original 131, which is held between an original platen 132 and a pressing plate 133, through a lens 138 and reads the variable density of the picture. The output from the CCD sensor 140 is amplified by an amplifier 141 and is converted to a digital value by an A/D converter 142, and this digital value is compared with the standard value read from a standard white plate 42, and the variance due to the quantity of light and picture elements is corrected by a correcting circuit 143, and the picture is binarized to white or black by a binarization circuit 144. A B-W detecting circuit 145 outputs X and Y coordinate components to a B-W maximum value detecting circuit 146 and a B-W minimum value detecting circuit 147 as position detection signals on a basis of the binary signal from the binarization circuit 144. The maximum value detecting circuit 146 detects a corner point 131C to output the detection signal to a CPU, and the minimum value detecting circuit 147 detects a corner point 131B to output the detection signal to the CPU.

Description

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, It is a photosensitive drum that can be rotated. 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 when it rotates to the position 4, it is exposed imagewise and becomes static. A latent image is formed. After that, in the developing device 5, either the developing roller 5A or 5B is selected according to an instruction to visually develop the toner, and then the cassette 8A or 5B is visually developed.
The transfer charger 8 transfers the image onto the copy sheet 312 that is fed from the printer B onto the drum 1 at appropriate timing via the registration rollers 7. In addition, 8A and 8B
is a paper feed roller that feeds paper 312 from the cassettes 6A and 6B. After the transfer, the copy paper 312 is separated from the drum 1 by the separation charger 10, guided by the conveyor belt 11 to the fixing roller 12, where it is thermally fixed by pressure heating.
The sheet is discharged onto a tray 15 via rollers 13 and further through discharge rollers 14. 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 18, and the charge is removed by the pre-exposure rub 2 again, and the next copy is made. Reference numeral 17 denotes a flapper interposed between the roller 13 and the paper ejection roller 14. In the case of normal transfer, the copy paper 312 is moved toward the tray 15 by placing the flapper 17 in the position shown by the dotted line. However, in the case of multiple transfer, the flapper 17 is moved to the position shown by the solid line, and the paper is temporarily stored in the multiple transfer tray 18. From there, the paper is guided to the registration roller 7 by the paper feed roller 18, and then the paper is guided again to the registration roller 7. The image is guided between the transfer position on the drum l, that is, the transfer charger 8, and the transfer and fixing steps are repeated. In addition, 2
o is a blank exposure device for preventing unnecessary toner from adhering to the drum l, 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. Reference numeral 31 denotes an original for copying placed on a glass original platen 32, and 33 represents an original pressing plate that covers the upper surface of the original 31. 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 38 and 37 are integrated with the first scanning mirror 35 and operate in the scanning direction. Scanning mirror 35. By being configured to move at half the speed of the scanning movement, the optical path length until reaching the fixed lenses 38 and 39 is always kept constant and scanning is performed. 40 is a line sensor composed of a COD memory that inputs the reflected light image on the document 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, and is exposed to light. Latent image formation position 4 on drum l
is projected on. 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] In order to solve the above-mentioned problems, an object of the present invention is to provide an image area specifying means on a document, a copy area display means for displaying a copy area on a copy paper, and a magnification specifying means. When an image area is designated by the image area designation means and a magnification is designated by the magnification designation means, the corresponding copy area can be displayed by the display means, and the displayed copy area can be moved to a desired position on the copy paper. The object of the present invention is to provide a copying device capable of copying. Another object of the present invention is to further provide an original moving means, a lens moving means, a cassette moving means, a cassette selecting means, and a registration roller timing control means to the above-mentioned means, so that an image specified by the above-mentioned image area specifying means can be imaged. When a magnification is specified for the area, a copy area is displayed, and this copy area is moved by driving at least one of the document moving means, lens moving means, cassette moving means, and registration roller timing control means, and the cassette selecting means An object of the present invention is to provide a copying apparatus capable of copying at a desired position on selected copy paper. [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 transmits a reflected light image from a document 131 held between a document table 132 and a pressure plate 133 to a lens 138.
In this example, the output from the CCD sensor 140 is sent to the amplifier 1.
41, and further converted into a digital value by an A/D converter 142. Then, 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. 3, the original 131 is placed on the original platen
32, the CCD
The reflected light image is read by the pixels of the sensor 140 along the Y-axis, and optical scanning is performed in the X-axis direction, so that each Y-axis line starts from black using the above-mentioned binary signal. You can see the coordinates of the position where it turned 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-detection circuit 145 shown in FIG. 2, based on the binary signal from the binarization circuit 144, the X coordinate of the position where black first changes to white on the Y-axis line and the X coordinate of that line are determined. are detected, and these X and X coordinate components are output as position detection signals to the B-W maximum value detection circuit 148 and 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. After that, the X coordinate of the changing position gradually decreases to the minimum value Y, N at the corner point 131B. Then the X coordinate increases to corner point 131C
Then, the maximum value YMI+(, Ilv) is obtained, and the point of change from black to white disappears. Therefore, the maximum value detection circuit 148 detects the corner point 131G and outputs the detection signal (L, Ym, l1v) as The minimum value detection circuit 147 detects the corner point 131B and outputs a detection signal (
X3. Y, N, ~) can be output to a CPU (not shown). Similarly, the G-B detection circuit 148 shown in FIG. 2 detects the X, X
The coordinate components are output as position detection signals to the W-B maximum value detection circuit 148 and the W-B minimum value detection circuit 150. Therefore, these detection circuits 148 and 150 detect the corner points 1310 and 131A, respectively, and output the detection signal (X
2 +Yrvg-v) Oyobi (X4. YMIN m
) can be output to the CPU. 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, Y, ... and Yl, IIN, I
When the position coordinates of N11 are different, it is determined that the original is placed diagonally. Therefore, the deviation angle θ1 at this time is jan'(Yp+
+++, IN-Yrww/XI
Mainly 1B. If there is a shift in the clockwise direction, then j a n
'(Yran Information-Yrw-ew/XI X3) becomes a negative value, so it can be determined. Further, the example shown 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 is jan-' (Y,, I-tr
w -Yna -tri /XI
IX3') By taking a positive value, it can be determined that the document 131 is deviated counterclockwise around the corner point 131B. 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.
Furthermore, in the case of FIG. 5, the document 131 may be rotated by an angle of 02 degrees clockwise about the corner point 131B. In this way, after correcting the orientation angle of the original 131,
To further move the document 131 to the reference position, use the document moving device again to move the document 131 a distance in the X-axis direction in the case of FIG.
It is sufficient to move x3, and further move the hook by a distance Y,, I,,, in the Y-axis direction, and in the case of Fig. 5, similarly move the hook in the X-axis direction by a distance @X3. Y MITT-F in the Y-axis direction
All you have to do is move lld. Note that the size of the original document 131 can also be calculated. That is, in FIG. 4, the longitudinal dimension X of the original 131 can be expressed as (Xl - Also, in the case of Fig. 5, xL is (
XtX3)Co3O41YB(YMINAIB-
YPII, 1. IN) Co3O4. Next, as shown in FIGS. 6(A) and (B), is the original moving device?・Stand and explain. FIG. 8(A) shows a moving mechanism incorporated inside the document pressure plate 133, where 201 is a stepping motor for rotating the document moving member 202 shown in FIG. 8(B), and 203 is a stepping motor for rotating the document moving member 202 shown in FIG. is a holding member that holds the stepping motor 201. Ru. This holding member 203 is made movable along a guide groove 204A of a running member 204 that is movable laterally, and both ends of a wire 208 stretched between pulleys 205A and 205B are connected to the holding member 203. Therefore, the stepping motor 207 allows movement in the Y-axis direction. 208 is a guide groove for moving the running member 204 in the X-axis direction, and connects both ends of the wire 210 stretched between the pulleys 208A and 2013B to the running member 204.
□ allows the stepping motor 211 to move the traveling member 204 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 The position is determined by Further, the running member 204 has a magnet 215, and the magnet 215
When the reed switch 216 comes into contact with the reed switch 216, the switch 216 is closed and the Y-axis home position is detected, and the stopper 217 similarly positions the switch 216. Note that 218 indicates a home position in which positioning has been performed in the X-axis and Y-axis directions. Reference numerals 220A to 220D are support columns for the document pressure plate 133, and when there is no need to correct the position of the document 131, the support columns 220A to 220D are retracted into the outer shell 133A forming the document pressure plate 133. stored in the state. 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 S7 as rotation data such as rotation angle θl and 02 for correction, and a movement data signal S! that instructs the amount of movement in the X-axis direction. , a movement data signal sY indicating the amount of movement in the Y-axis direction.
Also, home position detection signals 51-IY 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 5l-IY, 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 for the moving member 202 is executed. Furthermore, when it is necessary to correct the movement in the X-axis direction and the Y-axis direction, the
In the case of axis movement, rotation signals A, a are sent via the driver 235.
; Supply r and n signals to the stepping motor 211 to rotate it forward or backward, and move the traveling member 204 in the X direction;
When moving in the Y-axis direction, the stepping motor 207 is supplied with rotation signals C, D; Execute X-axis movement and X-axis movement. 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, 306 is a cassette that is movable in the axial direction of the photosensitive drum l shown in FIG. 1, and 306A is a cassette support mounted on the cassette 306. Pulleys 307A and 30
Both ends of the wire 308 stretched between the cassette 308 and the cassette 307B are connected to each other, and the stepping motor 309 drives the pulley 307B to move the cassette 30B along the guide groove 310. Reference numeral 311 is a paper feed roller that feeds the copy paper 312 from this cassette tray 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 paper feed roller 311 has a cassette support base 3.
The other end of the lever 314 whose end is fixed to 08A is lightly abutted, and the cassette 306 is inserted. When the paper feed roller 31 is moved along the inner groove 310,
1 is also adapted to react in the same direction via this lever 314. Further, 315 is a shielding plate attached to the cassette support stand 306A, and 316 is a photointerrupter arranged on the housing 317 side of the device, and the cassette 3o is placed at the position where the shielding plate 315 has closed the photointerrupter 316.
The home position of e 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 SI from the photointerrupter 31B
c. Thus, the controller 330 receives the detection signal S. Based on the data signal Sc, the driver 331 supplies the stepping motor 309 with either forward or reverse rotation signals L, τ, and the cassette 3.
0B movement can be performed. Next, the lens moving device will be explained with reference to FIG. Here, 438 is a zoom lens disposed in the irradiation optical path to the drum 1 (see FIG. 1), and in this figure, the X 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 rotation member capable of linear movement in the Y-axis direction, and one end of the rotation member 445 is slidably held in a guide groove 446, so that the lens stand 440 can be moved in the X-axis direction. When the member 445 is moved linearly in the Y-axis direction, the lens 438 can be rotated around its optical axis 439A, thereby changing the magnification of the lens 438. 447 is a magnet attached to the lens stand 440. 448 is a reed switch, and when the magnet 447 comes into contact with the reed switch 448, the contact is closed, thereby detecting the home position in the X-axis direction, and positioning is performed by the stopper 448. Note that all the devices described above are installed on the traveling member 450. Thus, both ends of a wire 452 stretched between pulleys 451A and 451B are connected to this traveling member 450, and the stepping motor 453 drives the pulley 451B to move the member 450 along the guide groove 45'1. Do whatever you want. 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 456. 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 480 is supplied with an X-axis movement data signal SE 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 S, . In this way, the controller 480 executes initialization using the detection signals S, H
;σ, "X of the lens 438 shown in FIG. 1θ
The magnification of the copied image can be changed by axial movement and rotation around the optical axis 438A. Further, if the designated data relates to image movement, a rotation signal 1. Lens 43 by supplying either J or 12 lenses.
Image shifting can be performed by laterally moving 8 in the Y-axis direction. As is clear from the above description, moving the copied image in the axial direction of the photosensitive drum 1 can be carried out using any of the document moving device, cassette moving device, and lens moving device. .・In other words, 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. lens 4
38, the image is formed on the drum l 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 306 to the position shown by the broken line, the copy paper 312 stored in the cassette 308 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 306, and only the lens 438 is moved in the axial direction of the drum 1. 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 1, the first
This is also possible by adjusting only the registration timing of the registration rollers 7, as shown in FIG. In the conventional case, the image leading edge is aligned with the copy paper 312 by driving the registration rollers 7 after a certain period of time of scanning starting from the image leading edge 131L 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 rollers 7 at an accelerated timing, for example, by advancing the copy paper 312 by the dimension text, it is possible to move the image on the original 131 to a position P' close to the trailing edge on the copy paper 312. can. 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, a description 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 801 of 0. 51 (l is a group of desired area designation keys, 511 is a document area designation key, 512 is a copy area designation key, and
Reference numerals 513 and 514 are light emitting diodes LE[l for displaying original 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 820 displayed on the display section 600 left and right and up and down. Therefore, the document 131 is specified in a desired area. When the original area specification key 511 is pressed,
LED 513 indicating the designation lights up, and LED 5
14 remains off, so keys 515~
522 to move the document line 610 to a desired 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 810, the LED indicates that the left frame line 810L is moved.
It is displayed by lighting 515S. Therefore, by pressing the line operation key 517, the frame line 610L can be moved to the left, and by pressing the line operation key 518, the frame line 610L can be moved to the right, and the amounts of these movements are shown on the display section 800. For example, it is displayed as a number, as shown as -14 in FIG. 18, and at the same time, the frame line 810L is also shown in a moved position. Similarly, when the line designation key 518 is pressed, the movement of the frame line 610R on the right side of the original line B10 is displayed on the display unit 800 by lighting up LE0518S, and when the line operation keys 517 and 518 are pressed, the frame line 610R is moved.
0R can be moved to the left and right, and the display is displayed on the display section 600 in the same manner as described above. Furthermore, line designation key 515. By pressing and 51B at the same time, the frame lines 810L and 810R can be returned to the original initialization lines 811L and 611R. Next, to move the upper frame line 810U and lower frame line 8100 of the original line 1310, line designation keys 518 and 520 are operated. Thus, by pressing the line designation key 519 and pressing the line operation keys 521 and 522 with the LED 518S lit, the frame line 810υ can be moved upward and downward. Press line operation key 5 with LED 520S lit.
By pressing 21 and 522, the frame line 6100
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 simultaneously pressing line designation keys 519 and 520, these frame lines 810U and 610D can be initialized to the positions of initialization lines 611U and 611D. The above describes the case of specifying the original area, but when specifying the copy area, by pressing the copy area specifying key 514, the specification is displayed by lighting the LEI] 514, and the LED 513 remains off. . Therefore, when moving the left frame line 820L of the rectangular copy line frame line 820 shown on the display section 600, press the line designation key 515 and press the line operation keys 515 and 516 in the same manner as described above. For the right frame line 620R, the same operation can be performed by pressing the line designation key 51B. In addition, when moving the upper frame line 620U and the lower frame line 620[1 of the frame lines 620, press the line designation keys 518 and 520, and then press the line operation key 52.
1 and 522. Further, by simultaneously pressing the line designation keys 515 and 518, the frame lines 820L and 820R are moved to the positions of the initialized copy lines 621L and 621R, and the line designation key 518 is pressed again.
By pressing and 520 simultaneously, the frame lines 620U and 820D can be initialized to the positions of the initialization copy lines 621U and 621D. 530 is a document detection key for detecting the size of the document. When the original detection key 530 is pressed, the optical scanning device,
That is, in the example of FIG. 1, the light source lamp 34° mirror 35,3
37 and the lens 3B performs pre-scanning, the CCD line sensor 40 detects the position of the document 131, and the position can be displayed on the display section 600. Therefore, if there is a deviation in the position or orientation of the original 131,
The document moving device can return the document 131 to its normal position via the controller 230 shown in FIG. The dimensions can also be displayed numerically. Thus, the display section 60
0 document size display area 802 indicates that the size is, for example, 0R.
-A4 is displayed. 540 is a cassette display key; 540 is a cassette display key;
40 is pressed, the size of the copy paper 312 stored in the selected cassette 30B is displayed as a copy initialization line 821 on the display section B00, and at the same time, its length is displayed in mm, and the size name is also displayed. It is displayed on the cassette size display section 603. 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 604 of the display section B00. will be displayed. 550 is a multiple mode key;
By pressing this button, the switching flapper 17 shown in FIG. 1 is switched to the solid line position, and the copy paper 312 is sent to the intermediate tray 18.
The following multiple copies can be executed. 560 is a group of keys for the car selection mode. That is, 565 is an automatic magnification calculation key, and when this automatic magnification calculation key 565 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 LED 585S lights up and other LEDs on the same line indicate that the magnification calculation mode is activated.
In this case, the document 1 is automatically
31 size was detected and the specified copy paper 312
(ie, the size of the cassette) 308 (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 601. In this case, the x:Y ratio for the area specified first is stored in the CPU (not shown). When specifying the area later,
Line 810 or line 620 moves corresponding to the X:Y ratio of the previously stored area. 570 is an automatic copy area selection key. Pressing key q70 confirms that the copy area automatic selection mode is active.
This is indicated by the lighting of the ED 570S and the turning off of other LEDs in the same row. In this case, the size of the document 131 is automatically detected, and the size of the specified copy paper, that is, the cassette, is also displayed on the display section 600. 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 820. 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.
The size of the document 131 is automatically detected in this case as well, and the specified size of the copy paper 312 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 600. 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 610 vertically and horizontally while maintaining its shape. 580 is an original size selection key, and the key 580 is pressed. By pressing down, the [, E[1580S] lights up and other LEIs in the same line indicate that you are in the document size selection mode.
In this case, only the specified size of the copy paper 312 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 displayed as a document initialization line 611. 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 cassette moving device described above. In addition, image editing can be performed by operating the developer switching key 545 to specify one color for copying, or by operating the multiplex mode key 550 to temporarily hold the copy paper 312 in the intermediate tray 8 and specifying the next color. Furthermore, it is also possible to specify a color each time a copy is made. 580 is an automatic cassette selection key. By pressing the key 580, the LE
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 580.
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 59OS is made to flash. In the above description, the document size is detected using a combination of an optical scanning device and a CCD line sensor 40. In this case, as described above, pre-scanning is required before copying. Therefore, an area sensor (not shown) can be used in addition to the CCD sensor 40 and the optical τ-based scanning device. In this way, the position of the document 131 can be detected without pre-scanning. Needless to say, it is possible to correct the position by driving the document moving device while viewing the positional deviation displayed on the display unit 800, which can be obtained by pressing the key 530. 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, but also the size and position of the original 131 before copying. Since the position, cassette size, etc. are all displayed sequentially on the display section 600, the position and size of the document 131 can be detected in conjunction with pressing a copy key (not shown) to start copying, and the position and size can be displayed on the display section 800. The size can be displayed, and 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, and the handler is alerted and asked whether or not to make corrections. You can also do that. Therefore, if the document moving device is not driven or the document pressure plate 133 is not manually released within a certain period of time, it is assumed that the handler has approved the incorrect position, and the copying operation is automatically started, or the copying operation is restarted. It is also possible to start the operation only when the button is pressed. Furthermore, although the above description has been made regarding the case where the document moving device is provided, the present invention can also be applied to the case where the document moving device is not provided.
Alternatively, even if provided, it is possible to perform copying by detecting the position and size of the document by pressing the copy key as described above, without performing position correction by the document moving device. Furthermore, it is possible to add a standard jllRMAT text, page, date, etc. using an internal eraser to the copying apparatus of the present invention, or to display an image read by a ccn on a CRT and specify an image area on the CRT. It goes without saying that it is also possible to write an image read by a CCD onto an ED 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. [Effects] As described above, according to the present invention, the image area specifying means, the copy area display means capable of displaying the copy area on the copy paper, and the magnification specifying means are provided, and the image area specifying means can display the image area. By specifying the magnification using the magnification specifying means, the corresponding copy area can be displayed on the copy area display means, so you can specify which position on what size copy paper to copy with respect to this copy area. Furthermore, by providing a copy area designation means, it is possible to know when the copy area has been moved to the desired position on the copy area display means. By providing a moving means, a lens moving means, a cassette moving means, a cassette selecting means, and a registration roller timing controlling means, a cassette of a desired size is selected and a desired copying area on copy paper corresponding to the selected cassette size is placed. Copying can be performed by driving at least one of the document moving means, the lens moving means, the cassette moving means, and the registration roller timing control means.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an example of the configuration of a conventional copying device, FIG. 2 is a configuration diagram showing an example of a document coordinate detection device of the copying device of the present invention, and FIG. 3 is a diagram showing coordinates input to the document coordinate detection device. FIGS. 4 and 5 are explanatory diagrams showing an example of input coordinates when the original is deviated from the normal position. FIGS. FIG. 7 is an explanatory diagram showing an example of the configuration of the drive circuit of the document moving device along with its operation, and FIG. 8 is a top view and a side view showing an example of the configuration of the document moving device of the present invention, and FIG. FIG. 8 is an explanatory diagram showing an example of the structure of the drive circuit of the cassette moving device along with its operation; FIG. 10 is a schematic diagram showing an example of the structure of the lens moving device of the copying device of the present invention. FIG. 11 is an explanatory diagram showing an example of the configuration of the drive circuit of the lens moving device together with its operation, and FIGS. Figures 15 and 18 are schematic diagrams showing three examples of the procedure for moving the image from the image position on the document in the direction of the drum axis, respectively. A model diagram showing two examples of the procedure for moving in the 1st direction. FIG. 18 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 an explanatory diagram showing an example of the display section of the copying apparatus of the present invention and the figures and data displayed on the display section. 1... Photosensitive drum, 2... Exposure lamp, 3.8.10... Charger. 4...Exposure position. 5...Developing device, 5A, 5B...Developing roller, 6.8A, 8B, 30B cassette 7, 306A...
- Cassette support base, 7... Registration roller, 8A, 8B... Paper feed roller, 11... Conveyance belt, 12... Fixing roller, 13... Roller, 14... Paper ejection roller, 15... Tray, 16... Toner collector, 17... Flapper, 18... Tray, 18... Paper feed roller, 20... Blank exposure device, 31.131... Document, 131A, 131B, 131C, 1310...corner points,
131L... Image tip, 32, 132... Original table, 33.133... Original pressure plate, 133A... Outer shell, 34... Illumination lamp, 35.36, 37.41... Mirror , 38.38...
・Lens, 40...Line sensor, 42...Standard white board, 43...Standard blackboard, 138...Lens, 140...Sensor, 141...Amplifier, 142...A/D conversion 143... Correction circuit, 144... Binarization circuit, 145... B-width detection circuit, 146... B-W maximum value detection circuit, 147... B-W minimum value detection Circuit, 148... W-8 detection circuit, 148... ToB maximum value detection circuit, 150... W-B minimum value detection circuit, 201... Stepping motor, 202... Original moving member, 203... Holding member, 204... Running member, 204A, 208... Guide groove, 205A, 205B, 209A, 208B... Pulley, 208.210... Wire, 207.211... Stepping Motor, 212.2
15...Magnet, 213.218...Reed switch, 214.21?
...Stopper, 218...Home position, 220A-220D...Support column, 230.330,480...Controller, 231.
233, 235, 331, 481, 483...driver, 30? A, 307B...Pulley, 308...Wire, 308...Stepping motor, 31θ...Guide groove. 311 River paper feed roller, 312... Copy paper, 312A... Copy image. 313...Roller rotating shaft, 314...Lever, 315 River front plate, 31B...Photo interrupter, 317...Housing, 318...Stopper, 438...Zoom lens, 438A... - 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, 4413.45
8... Stopper, 450 River traveling member, 451... Guide groove, 451A, 451B... Pulley. 452 River wire, 453 River stepping motor, 500... Operation unit, 501... Magnification specification key, 502... Magnification increase key, 503... Magnification reduction key, 510... Area specification key group, 511... Original area specification key, 512... Copy area specification key, 513.514, 515S, 51eS, 518S, 52
0S...Light emitting diode (LED), 515.516.51!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...Selection mode key group, 565...Auto magnification calculation key, 5f15A, 5? OA, 575A, 580S, 590S
...LED, 570...Automatic copy area selection key,
575... Automatic image area selection key. 580... Original size selection key, 580... Automatic cassette selection key, 600... Display section, ft01... Magnification display section, 802... Original size display section, 603... Cassette size display screen , 1304... Color display section, 810... Original line, [(10L, 810R, elOU, 61013... Frame line, 811.811'L, 8111'l, 8110.[
1110...Initialization original line, 820...Copying line,

Claims (1)

[Scope of Claims] l) Image area specifying means for specifying an image area on a document, magnification specifying means for specifying a magnification of a copy area with respect to the image area, and an image area specified by the image area specifying means. On the other hand, the copying apparatus is characterized in that it comprises a copy area display means for displaying a copy area corresponding to the magnification when the magnification is designated by the magnification designation means. 2. In the copying apparatus according to claim 1,
A copying apparatus characterized in that the copy area displayed on the copy area display means can be moved to a desired position by a copy area designation means. 3) image area specifying means for specifying an image area on a document; magnification specifying means for specifying a magnification of a copy area with respect to the image area; copy area display means for displaying a copy area corresponding to the magnification; a document detecting means for detecting the position and size of the document, a document moving means capable of moving the position of the document, a movable optical system, and a cassette moving means capable of moving the cassette containing the copy paper; a registration roller timing control means capable of controlling the timing of the registration rollers, and drives at least one of the document moving means, the optical system, the cassette movement means, and the registration roller timing control means to display the display. A copying apparatus characterized in that the copying apparatus executes copying of a copied copy area.