JPH01321778A - Picture reproducing device - Google Patents

Abstract

PURPOSE:To attain the processing suitable for a desired edit by designating a desired picture area on an original and a desired reproducing area on a recording member. CONSTITUTION:An area designation key 130 is a key to designate an area for picture processing and after the key is depressed, the position on an original desired to be processed and placed on a coordinate magnification input face 141 is designated by a touch pen 138 to able to designate an optional area. Moreover, an image repeat key 135 is used to record a picture on the entire original or the trimmed original on one and same recording member for plural number of times. Then in the area designation mode, the area is inputted up to the three areas of a rectangle and when the area designation key 130 is depressed, the area corresponding to any of the area number (any of 1-3) of the depression is displayed. Furthermore, after the decision of the output area, it is displayed on a liquid crystal display section 123 and the user selects the mode as to whether the display is subject to magnification by the same magnification for X, Y or subject to independent magnification for X, Y so as to set the result to a picture processing circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image reproducing device for reproducing an original image onto a recording material.

[Conventional technology]

2. Description of the Related Art Facsimile machines and copying machines are known as image reproducing devices that reproduce original images on recording materials. For example, recent copying machines not only reproduce original images as they are;
Products have been commercialized that have editing functions such as enlarging or reducing the original image and reproducing it, or erasing or extracting only a desired area of the original image and reproducing it.

[Problem to be solved by the invention] In such a copying machine, in order to reproduce an image of a desired area of a document image onto a desired area of a recording material at a desired magnification, it is necessary to specify an image area within the document image and to It was necessary to make a number of specifications such as the variable magnification ratio and the playback area of the recording material.

However, the size of the image area and the scaling factor.

The sizes of the playback areas are dependent on each other, and changing one will also change the other, making it time-consuming to specify the optimum size.

[Means for solving problems]

The present invention has been made in view of the above points, and includes a specifying means for specifying a desired image area on a document and a desired reproduction area on a recording material, a scanning means for scanning the document image, and a scanning means for scanning the document image. The apparatus further comprises a reproducing means for reproducing a scanned original image on a recording material, and a determining means for determining a reproducing magnification of the image based on the image area and the reproducing area specified by the specifying means, the determining means The reproduction means determines respective magnifications in the vertical and horizontal directions, and the reproduction means reproduces the image area by varying the magnification in the vertical and horizontal directions at independent magnifications, and the reproduction means changes the image area by a common magnification. The present invention provides an image reproducing device that operates in a second reproduction mode in which the image is multiplied and reproduced.

〔Example〕

The present invention will be explained below based on preferred embodiments.

FIG. 1 is an overview diagram of a copying apparatus to which the present invention is applied;
1 is an editor used for setting points and modes; 32 is a touch pen for inputting points on the editor 31; 33 is an operation unit for setting various modes;
34 is a reader that reads the original, and 35 is a printer that outputs the image read by the reader 34.

Figure 2 shows a structural diagram of the reader and printer. The document is placed face down on document table glass 3, and is pressed onto the glass by document cover 4. The document is illuminated by a fluorescent lamp 2, and the light is focused onto the surface of the CCDI via the reflecting mirror 5.7 and the lens 6.

Mirror 7 and mirror 5 move at a relative speed of 2:1. These optical systems are moved forward (from left to right) at a speed according to the reading magnification while applying PLL by the DC servo motor 26.
do.

The backward movement (from right to left) is performed at a constant speed regardless of the magnification. The maximum document size that can be processed is A3, and the resolution is 400.
Since it is dots/1nch, it is about 5000 as CCD1.
Use bits.

In this way, while moving the mirrors 5 and 7 to move the document reading position, the CCD 1 sequentially scans the document image in line to obtain an image signal indicating the image density.

The image signal bit-serially processed by the reader is input to the laser scanning optical system unit 25 of the printer. This unit 25 consists of a semiconductor laser collimator lens, a rotating polygon mirror, an Fθ lens, and a tilt correction optical system.

The image signal from the reader is applied to a semiconductor laser for electro-optical conversion, and is irradiated via a collimator lens to a polyhedral mirror that rotates at high speed, and the reflected light is incident on the photoreceptor 8 and scanned. A pre-static eliminator 9 and a pre-static eliminator lamp 10 are used as process components that enable image formation on the photoreceptor 8.
-Charger 11. Secondary charger 12, front exposure lamp 13
, a developing device 14, a paper feed cassette 15, a paper feed roller 16, a paper feed id 17, a registration roller 18, a transfer charger 19,
Separation roller 20, conveyance guide 21. A fixing device 22 and a tray 23 are arranged. The speed of the photoconductor 8 and the conveyance system is 1
It is 80mm/sec. The printer is a so-called laser printer.

The copying device of this example has intelligence such as image editing, and its functions include compositing arbitrary characters, symbols, etc. on the read image, and arbitrary editing in 1% increments in the range of 0.35 → 4.0 times. There are functions such as changing the magnification, trimming to extract only a designated area of the image, and movement function to move the trimmed image to an arbitrary position on the paper.

FIG. 3 shows the appearance of the document reading device.

The document reading device includes an operation section 143 and a document table pressure plate 142 having an editor.

This will be explained in order below. The operation unit 143 also displays information about a printer unit (not shown) that is connected to the document reading device and performs image formation based on image information.

Start key lO1 instructs to start document reading.

The asterisk key 102 is used for setting the service mode and the like.

The recall key 103 is used to designate a call mode in which the previous copy mode can be recalled. A reset key 104 is used to return various settings to standard mode. The numeric keypad 105 is used to set the number of copies.

The clear stop key 106 is used to clear the number of sheets specified using the numeric keypad and to stop the copying operation. Density keys 107, 108, and 109 specify manual density adjustment and automatic density adjustment (AE) for copying,
The instructions are displayed on indicator 110.

The photo key 111 is designated when a user wants to make a copy of a photo original. The high contrast key 112 is specified when the user wants to make the contrast (black and white) of the image clear. A negative/positive inversion key 113 inverts the white level and black level of the image.

The number of sheets display section 114 displays the set number of sheets and the remaining number of sheets during the copying operation. An indicator 115 displays the orientation of the document based on the copy magnification and paper size. Indicator 116 displays the paper size. The cassette selection key 117 specifies the paper feed stage of the printer. Same size key 118. Standard magnification key 119, auto magnification key 12
1 indicates the magnification of the variable size copy, and indicator 12
2 displays the magnification during standard magnification.

The auto paper selection key 120 is used to automatically select a paper size based on the document size or the like. The liquid crystal display section 123 is composed of a 240 dot x 64 dot liquid crystal, and is displayed under the control of a microcomputer, which will be described later.

Note that the surface of the liquid crystal display section 123 is covered with a transparent touch panel. This touch panel has a built-in 4XIO matrix-like transparent electrode switch, and is configured so that the coordinate values when specified with a finger or the like are taken into a microcomputer so that the specified position can be determined. Both sides/
The multiplex key 124 is used to specify duplex/multiplex operation of the printer. Sort/collate key 125 is used to specify the operation of a sorter connected to the printer. The center movement key 126 is used to move image information to the center of the paper. The document recognition key 127 is used to select whether or not to recognize the document size.

The memory key 128 memorizes various operation modes,
- This is a key that can be called all at once.

The document table pressure plate 142 presses the document on a document table (not shown) and has an operation section, which allows various settings of the copy mode and input of characters, numbers, symbols, etc.

The digitizer 139 can import coordinate data on the board indicated by the touch pen 138 into the microcomputer. The coordinate data is recognized as position information and magnification information on the document from the coordinate magnification input surface 141 and character information from the character input surface 143 in combination with the operation mode. In addition, since the magnification information is converted from coordinate values to magnification information by a microcomputer program, it is possible to display a large range of necessary magnification as shown in the figure (in this example, the range of magnification is 35%). from 1
00% is displayed in a large size).

The zoom key 129 is a key for specifying a magnification, and after pressing this key, the magnification is specified by pointing the coordinate magnification input surface 141 with the touch pen 138.

The area specification key 130 is a key for specifying an area for image processing. After pressing this key, by specifying a position on the document placed on the coordinate magnification input surface 141 with the touch pen 138 to be processed, Any area can be specified.

The movement key 131 is a key for moving the image, and after pressing this key, the position to be moved is specified on the coordinate magnification input surface 141 with the touch pen 138 or with the touch panel 123.

The page continuous copying key 132 is used when it is desired to output a document in multiple sheets.

The enlarged continuous copying key 133 is used when it is desired to output an enlarged image of a document on multiple sheets of paper.

The mirror image key 136 is used when it is desired to copy an original image by inverting it in the main scanning direction.

The image create key 137 is used when performing various image processing (such as italicized characters).

The character input key 134 inputs characters and numbers into the original image.

This is used when inserting and recording symbols, etc. After pressing this key, touch the character input surface 1 with the touch pen 138.
43 to specify letters, numbers, and symbols.

The image repeat key 135 is used to repeatedly record the entire document or a trimmed image on the same recording material multiple times.

FIG. 4 is a block diagram showing the circuit configuration of the control section of the copying apparatus shown in FIG.

Reference numeral 201 corresponds to a CCD shown in the second diagram, which converts an original image set on the original platen 3 into an electrical signal and outputs it as an image signal. An image processing circuit 202 performs image processing on the image signal from the CCD 201, such as shading correction for correcting non-uniformity of output and γ correction for correcting density characteristics. 207 is an add-on display RAM that stores code data such as characters and symbols to be added on; 20B is an add-on font ROM that outputs dot data representing characters corresponding to the code data; and 205 is an add-on font ROM that stores dot data from the add-on font ROM 208. The add-on RAM 206 controls the output of dot data stored in the add-on RAM and outputs the add-on start signal ADS.
an add-on image generation circuit that generates add-on image data to be inserted into the document image in response to T; 203 is a synthesis circuit that synthesizes the document image data from the image processing circuit 202 and the add-on image data from the add-on image generation circuit 206;
A printer 204 performs a printing operation based on image data from the composition circuit 203.

Further, 210 is a control unit CPU that controls the operation of each block of the league, and according to the program stored in the ROM 214, the RAM 215. Control operation is performed using l10216 etc.

Reference numeral 213 denotes an editor provided on the document platen pressure plate 142;
Reference numeral 12 corresponds to the operation unit shown in the third figure, reference numeral 211 is a buzzer that emits a buzzer sound to the operator, and reference numeral 209 is a sub-scanning counter that counts the number of recording lines of the printer.

With the above configuration, the original image (A) read by the reader
It becomes possible to print out the image (B) or (C) in which information such as characters and symbols of a desired size are inserted at a desired position.

FIG. 7 shows the control procedure of the CPU 210 regarding input of address characters.

Hereinafter, a method for setting each mode using the editor and the operation section will be explained using FIG. 7.

When the character input key 134 on the editor is pressed (S
l 1. ), the screen shown in FIG. 5(A) is displayed on the liquid crystal display section 123 (S13). In the figure, a cursor 501 is blinking at the display position where characters are input, and is controlled to move vertically and horizontally by pressing the four displayed cursor movement keys 502.

The operator can correct the error by moving the cursor 501 to the incorrectly inputted character and inputting the character again.

Furthermore, when the displayed clear key 503 is pressed, all characters are cleared.

Now, a method for inputting characters using the editor 213 will be described below.

The editor 213 and the CPU 210 are in serial communication, and the location on the editor 213 that the point pen 138 points to is communicated to the CPU 210. When the operator points at a certain position on the editor 213 with the point pen 138, the CPU 210 determines whether the point coordinate information from the editor 213 is within the character input surface 143 (S14). When the point position is within the character input surface 143, the buzzer 39 beeps to notify the operator that a character has been input (515), and the code corresponding to each character, specifically “ A"→0°"B"→1... Blank 149 is determined and stored in the add-on display RAM 207 (S16). Then, the characters corresponding to the code data stored in the add-on display RAM 207 are reflected on the screen display, and the cursor is usually advanced one position to the right.

Also, if the current cursor position is on the right side,
-Move the cursor to the leftmost position at the bottom of the line. In this way, the characters to be combined with the image are input, and the liquid crystal display section 1
23 shows the display shown in FIG. 5(B).

Figure 6 shows an add-on display R corresponding to the display in Figure 5 (B).
The contents of AM207 are shown.

The character string input in this way will be displayed in the add-on display RAM 20.
It is only stored as a code within 7 and does not have the characteristics of image information.

When the start key 7 commands the start of the image forming operation, the CPU 210 first reads the add-on display RAM 20.
The font information corresponding to the code No. 7 is read from the add-on font ROM 208 and expanded into the add-on RAM 205. At this time, the add-on RAM 205 only contains font information of the input characters arranged in order, and even if the add-on RAM 205 is directly read out, it does not become image information. Therefore, the CPU 210 uses the add-on image generation circuit 2.
Set parameters such as the number of horizontal characters, the number of vertical characters, the number of font composition dots, and the character size for 06.
When the add-on RAM 205 is read out through the add-on image generation circuit 206, it becomes image information.

After deploying the font information to the add-on RAM 205 and setting parameters to the add-on image generation circuit 206 in this way, the CPU 210 moves the optical system of the league in the sub-scanning direction to read the original and photoelectrically converts it in the C0D 201, and the image processing circuit 202 The image processing circuit 203 performs image processing such as shading correction and γ correction, and synthesizes the character string image data from the add-on image generation circuit 206 and the original image data.
are combined and output to the printer 204.

As a result, as shown in FIG. 8 (original image 801), as shown in FIG.
) Recorded material 802 in which the character information displayed in
This is what you get.

Next, the zoom mode will be explained. When the zoom mode key 129 is pressed, the screen shown in FIG. 9(B) is displayed, and press the X down key 902.
X auto key 903. X7”7 key 904. Y down key 905. Y auto key 906° Y up key 907. XY down key 908. XY auto key 9
09. Set the magnification using the XY up key 910.

In the display of FIG. 9(A), the zoom scale of the coordinate input surface 141 on the editor 213 is
When specified, the CPU 210 is controlled to convert the coordinate data to a magnification corresponding to the zoom scale, change the screen to that shown in FIG. 9(B), and display the input magnification.

Next, the area specification mode will be explained. Up to 3 rectangular areas can be entered, and the area specification key 130
When you press , if the area corresponding to the area number (1, 2, or 3) is set, the 9th
Figure (C), or if it is not set, Figure 9 (D)
) is displayed. In FIG. 9(C), 912 is an area clear key for clearing the currently displayed area; 91
3 is the area up key to increase the area number, 914
Similarly, 915 is an area down key, and 915 is an area number display that displays the current area number.

When the area up key 913 is pressed in the figure, if an area is registered, area number 9 in Figure 9(C) is displayed.
15 becomes "2", and the trimming or masking mode and the area corresponding to the set value are displayed on the left side of the liquid crystal display section 123. If no area is registered, the area number "2" in FIG. 9(D) will be displayed. Also, Figure 9 (C)
And in FIG. 9(D), touch panel input oyster-91
When 6 is pressed, the screen shown in FIG. 9 (F) is displayed, and the control is such that the point position of the input area can be corrected in mm units and a new area can be registered on the liquid crystal display section 123.

In Figure 9 (D), when you input one point on the diagonal input of the area, the screen changes to the one shown in Figure 9 (E), and after inputting the remaining one point, press the OK main key 17. A new area is registered, and the screen shown in FIG. 9(C) appears.

Next, the movement mode will be explained. When the movement key 131 is pressed, the screen shown in FIG. 9(G) is displayed on the liquid crystal display section 123.

The operator selects and presses one of the center movement key 918, corner movement key 919, designated movement key 920, and binding margin key 921. If the selected key is for corner movement, specified movement, or binding margin, the ninth
Figure (H), Figure 9 (■), and Figure 9 (K) are displayed.

In Figure 9 (H), the type of corner movement can be specified;
In Figure (I), by specifying the destination of the specified movement on the editor 213 or by pressing the touch panel input key 916, the display shown in Figure 9 (J) is displayed, and the point specified on the editor 213 is corrected. Or new input is possible. In FIG. 9(K), the entire movement of the binding margin mode can be set.

Next, the page snapshot mode will be explained. When the page continuous copying key 132 is pressed, FIG. 9(L) is displayed. In the figure, for example, the left and right page continuous copy mode is a mode that outputs the left half and right half of the scanned document on separate sheets, and the left page continuous copy mode is a mode that outputs only the left half of the scanned document. . In addition to this mode, right, top/bottom, top, and bottom modes can be set.

Next, I will explain the enlarged continuous copying mode. The enlarged continuous copying mode is a mode in which when copying at a set magnification, if the paper does not fit on the output paper, it is output on multiple sheets separately. By combining them, one output result can be obtained. To set this mode, when the enlarged continuous shooting key 133 is pressed, the screen shown in FIG. 9(M) is displayed, and the mode is set.

As explained above, six independent modes can be set by using the editor 213, liquid crystal display section 123, etc., but conversely, the operator can separate the desired copy output result into each mode and set each mode. The mode must be set individually.

Therefore, it is possible for the operator to set the combined mode to be used, thereby improving operability for the operator.

However, if a new key is added when setting such a combined mode, it may become confused with the six mode keys that can be set independently, and the operability may worsen.

In addition, a key must be added to the hardware as a new mode, and work such as modifying the circuit or adding keys is required to make multiple such composite modes function. Therefore, in this embodiment, the mode is set using the character input surface 143 of the editor 213 used in the character input mode.

The following is a specific example of a composite mode: AZ, which combines the area, zoom and movement modes of the six modes mentioned above.
Regarding S mode, document area 301 in Figure 10 (A)
Let us consider the operation of changing the magnification and moving the image to the area 302 in FIG. 10(B). First, if there is no composite mode, specify area A in area specification mode, and select YC/YO in zoom mode.

The magnification in the X and Y directions is determined by XC/XO, and the output paper, area B, Xs, and Ys values must be specified in the specified movement mode as described above, and the mode key must be pressed three times in total. did not become.

However, in order to realize this mode, XII "l, X2.Y2+ X3+ "3+ x4 shown in FIG.
If you have the coordinate data of each point of °Y4, you can determine the designated area, movement destination, and magnification.

This will be explained in detail below using FIG. 11 and FIG. 12. FIG. 11 shows the display state of the liquid crystal display section 123 when the combined mode is specified, and FIG. 12 shows the operating procedure of the CPU 210 when the combined mode is specified.

When specifying the composite mode, the operator first presses the asterisk key 102 in FIG. 3 (S100).

Due to this operation, the character string input from the character input surface 143 becomes a mode input. Here, when AZS is entered on the character input surface 143 using the point pen 138 (SIOI
), and FIG. 11(A) is displayed (S102). If there is a point input with the point pen 13B (S103)
, display FIG. 11(B) (S104), and after inputting another diagonal point (S105), press the OK key 401 (S104).
107), x in the document area, x2. y,,y2
The input of data is completed.

Next, display (8108) in FIG. 11(C) and designate the output canister position. In the figure, if a point is input (S109), the screen shown in FIG. 11 (D) is displayed (SIIO). Therefore, after inputting another diagonal point (Si
ll), press the OK key 401 (Sl 13), and the output area X3. X4. Y3. Y4 decides.

The document area X0. X2. Yl.

Y2 and Dekanirifu X3. X4. Y3. The magnification of the moving position X and Y is automatically determined from Y4.
The manuscript area and the output area are not necessarily similar in shape. Therefore, there is a method of scaling the image at the same magnification in the X and Y directions and outputting it so that the image in the original area is not missing (i.e., the x
, Y, if a smaller magnification is output as a common magnification, an area where no image is output may occur, such as the shaded area in FIG. 1O(B). This may be inconvenient when outputting to a predetermined format.

Therefore, after inputting the document area and output area, there are two ways to determine the magnification: an automatic magnification mode in which the smaller of X and 7 magnifications is determined as the common magnification for xY, or an XY independent mode in which the magnification is determined independently for X and Y. By selecting one of them, the user attempts to obtain the output result desired by the user. For this reason, after determining the output capacity, the liquid crystal display section 123
11(E) is displayed (S114'), and the user is asked to select a mode to change the magnification at the same magnification for x and Y or to change the magnification independently for x and Y.

After that, settings for the image processing circuit 202 are performed.

FIG. 13 shows a circuit diagram of a portion of the image processing circuit 202 shown in FIG. 4 related to movement. The shift memory 1307 has two lines of memory, and when one is performing a write operation, the other is performing a read operation.

Therefore, since the control is common, FIG. 13 shows the control for only one shift memory.

A write address counter 1304 is an address counter for writing image data from the CCD 201 into the shift memory 1307, and a read address counter 1305 is an address counter for reading data from the shift memory 1307. Address selector 1306 is CPU 21
This is for addressing the shift memory 1307 by receiving a command from 0 via the I10 port 1301 and selecting either the address signal of the write address counter 1304 or the address signal of the read address counter 1305.

The I10 registers 1302 and 1303 are registers for the CPU 210 to give preset values to the write address counter 1304 and the read address counter 1305, respectively.

The write address counter 1304 and the read address counter 1305 are both down counters, and each receives a WST signal and an RST signal that command the start of a counting operation, and also receives a write clock WCLK to the shift memory 1307 and a read clock RCLK from the shift memory.
is input.

The area within the dotted line in FIG. 13 is the trimming processing section of the image processing circuit 202, 1315.1316 is the exclusive OR gate for determining the image area, and the signal OF is the signal that controls it. EN counter 131
The area within the frame determined by 3 is masked, the area outside the frame is set as an output drawing line, and the area within the time frame Q is set as an output image, and the area outside the frame is masked.

1310 is an AND gate that controls the output of the image data that has been output from the shift memory 1307 and passed through the density processing unit 1308; 1317 is an AND gate that determines whether to output the masked portion as white or black; This is a control signal that outputs black when it is 1 and time and date when it is 0.

1311 is the gate 1310. OR gate 1 that outputs the image output output by 1317 as VIDEO
309 is an exclusive OR gate that controls the black and white inversion of image data; IN is a signal that controls it; when it is 1, the image is as original; when it is Q, it is inverted. Each signal is sent to the CPU 210
outputs according to the mode specified by the operator.

The ST counter 1312 and the EN counter 1313 are a start bit counter and an end bit counter for outputting an image only to a predetermined area, respectively, and the CPU 210 presets count data for gates into these via Ilo.

The flip-flop 1314 is set when the ST counter 1312 counts up and is reset when the EN counter 1313 counts up, the operation of which is shown in FIG.

For example, in the case of an OF multiplied signal of 1, when the ST counter 1312 counts up and the F/F 1314 Q becomes 1, the gate 1
There is no output from the gate 1310 and it is masked until the output of the gate 315 becomes 0 and the EN counter 1313 counts up. Instead, the output of the gate 1316 is 1 during that time, so when the BB multiplied signal is 1, the gate 1317 is 1, and the gate 1311 outputs 1, resulting in a black mask. On the contrary, 0F=
1. When BB=O, white masking is performed.

Also, when OF20 is set, the outputs of gates 1315 and 1316 each become 1.0 during that time, so when BB=1, the area outside the trimming area is black, and when 0F=O, BB=0, the area outside the trimming area is white. Become.

Next, the principle of variable magnification will be explained.

Variation of magnification in the sub-scanning direction is performed by varying the scanning speed of the optical system. The CPU 210 calculates the speed of the DC servo motor from the magnification specified by the operator, calculates the PLL frequency corresponding to the speed, and presets it in a motor driver (not shown) before scanning.

The printer's transport speed is always 180 mm/s
c, so when magnifying it twice, the speed at the same magnification is 180mm
The optical system is moved at a speed of 90 mm/sec, which is 1/2 of
Run in sec.

The magnification change in the main scanning direction will be explained based on FIG. 15.

A/D from CCD201 output at a constant frequency
The converted serial signal is sampled at a clock rate according to the magnification. When the size is the same, data is written to the shift memory 1307 using the write clock WCLK, which is equal to the transfer lock CLK from the COD, as shown in FIG. 15(A), and data is written to the printer as shown in FIG. 15(B). Read from the shift memory using the read clock RCLK, which is equal to the output clock VCLK.

For example, when reducing by 1/2, the write clock WCLK to the shift memory 1307 is transferred as shown in FIG. Write to 907. Then, as shown in FIG. 15(B), the output clock V
Read with the same read clock RCLK as CLK and set it to 1
/2 Execute reduction.

Also, when enlarging to 2 times, when writing to the shift memory 1307, write as shown in FIG. 15 (A) in the same way as when magnifying the data at the same size, and when reading from the shift memory 1307, as shown in FIG. 15 (D). Read clock RC with a clock rate of 1/2 of the output clock vCLK to printer B
If read with LK, 1 bit is padded for every 1 bit of original information, making it possible to perform double enlargement.

The principle of image movement will be explained using FIGS. 16 and 17.

Regarding the sub-scanning direction, as shown in FIG.
This is done by changing the output timing.

When the optical system reaches the position Δ with respect to the original during image reading, if VSYNC and VIDEO are output, an output that does not move as shown in the figure ▪ can be obtained. If the optical system reaches the position of Δ and outputs VIDEO along with VSYNC,■
An output that moves backward is obtained as shown in (2), and if VSYNC and VIDEO are output when the optical system reaches the position Δ, an output that moves forward as shown (3) is obtained.

Regarding the main scanning direction, as shown in FIG. 17, register I10 in FIG. 13. This is done by relatively changing the downcant start address given to the write address counter 1304 and the read address counter 1305 via 1303.

For example, if the read start address is RADRI for the write start address WADR to the shift memory 1307, the output main scanning width VIDEOENABLE is as shown in ■.
In contrast, image data xO corresponding to address WADR moves to the right. Also, set the read start address to RADR2.
Then, data x3 corresponding to shift memory address Q moves to the left with respect to Yahari v■ DEOENABLE as shown in ■. Valid image section signal VID shown in FIG.
EOENABLE is the ST counter 1312 in Figure 13.
and EN counter 1313 and F/F 1314, gate 1
315.1316. 1317. 1!310. 13
11, and is a trimming section signal consisting of WAD from address Q in shift memory 1307 in FIG.
Invalid images outside the R interval are necessary to be used as a white signal.

When the user performs the 11th operation on such an image processing circuit 202,
The settings when xY independent magnification is selected will be briefly explained in Figure (E). After selecting the magnification mode (S115), the magnification change in the X direction is Xc/Xo, and a value corresponding to this is given to a motor driver (not shown) to set the optical system reading speed in the sub-scanning direction. Next, the magnification in the Y direction is Yc/
Yo, and write clock W such that it corresponds to the magnification of
CLK and read clock RCLK. Next, write the initial value of the write address counter and the initial value of the write address counter corresponding to Ys, which is the moving distance in the main scanning direction, to the I10 register (1) 1302 and the I10 register (2) 1303, respectively, and write the moving distance in the sub-scanning direction. A value corresponding to
16). Thereafter, an image forming operation is performed (S117), and the operation is ended.

On the other hand, when selecting XY equal ratio, which performs magnification processing using a common magnification in the x and y force directions, as described above (X c / X o, Y c
/Yo is set, and an image forming operation is performed.

Although the present embodiment has been described above using a copying apparatus that processes images electrically, it is also applicable to a copying apparatus that reproduces images by directly irradiating original image light onto a photoreceptor.

〔effect〕

As explained above, according to the present invention, by specifying a desired image area on the document and a desired reproduction area on the recording material, it is possible to reproduce the image of the desired area of the document into the desired area of the recording material. In addition, since it is possible to arbitrarily execute both a mode in which the original image is given priority for reproduction and a mode in which the reproduction area of the recording material is reproduced with priority, processing suitable for the desired editing can be performed.

[Brief explanation of the drawing]

FIG. 1 is an external view of a copying apparatus to which the present invention is applied, FIG. 2 is a diagram showing the configuration of the copying apparatus, FIG. 3 is an external view of the league, and FIG. 4 is a block diagram showing the circuit configuration of the copying apparatus. Figures 5, 9, and 11 are diagrams showing the state of the display screen, Figure 6 is a diagram showing the content of melodies, Figures 7 and 12 are flowcharts showing the control procedure, Figures 8 and 12 are diagrams showing the contents of the melodies. FIG. 16 is a diagram showing an output example, FIG. 1θ is a diagram showing an example of a processing mode, FIG. 13 is a detailed diagram of an image processing circuit, FIGS. 14, 15, and 17 are timing charts. 31 is the editor, 32 is the touch pen, 34 is the league,
35 is a printer.

Claims (1)

[Claims] a specifying means for specifying a desired image area on the original and a desired reproduction area on the recording material; a scanning means for scanning the original image; and a reproduction means for reproducing the original image scanned by the scanning means on the recording material. and determining means for determining a reproduction magnification of an image based on the image area and reproduction area specified by the specifying means, the determining means determining magnification in each of the vertical and horizontal directions, The reproduction means operates in a first reproduction mode in which the image area is reproduced by varying the magnification in the vertical and horizontal directions at independent magnifications, and in a second reproduction mode in which the image area is reproduced by varying the magnification in a common magnification. An image playback device characterized by: