JPH05145733A - Digital copying machine containing decorating function - Google Patents

Abstract

PURPOSE:To attain a repetitive copying operation with the high decorating effect. CONSTITUTION:The image information on a unit pattern is written into a memory 12r, and the repetitive image information is read out of the memory 12r and a repetitive pattern is recorded. In this case, a read address is shifted in the main scanning direction (x) every time the image information equivalent to one row are repetitively read in the direction (x). Furthermore the read address of the subscanning direction is shifted back and forth in accordance with the advance of the read address of the main scanning direction. Then the unit pattern is set oblique and the tilting angle of the pattern is changed. Thus it is possible to obtain a repetitive copy having a change and the high decorating effect together with the lively motion feeling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine for reading an original image with a scanner and digitally processing the image information for printing, and more particularly to a digital copying machine having a memory for temporarily storing at least a part of the image information. Regarding

[0002]

2. Description of the Related Art Image information is digitally processed and data is recorded.
In a digital copying machine that obtains a copy of a document by giving it to a printer such as The Printer, image processing such as scaling and editing is easy. Japanese Utility Model Laid-Open No. 63-44565 discloses a repeat recording technique in which image information of an original is stored in a memory, and the image information in the memory is repeatedly read and recorded on one sheet of recording paper. According to this, the rectangular area of the original can be repeatedly recorded on the recording paper in the grid distribution on the board or in the diagonal direction thereof.

[0003]

However, this repeat recording is limited to grid positions on a regular grid, and there is no processing for the original image, and it is desired to further improve the decoration function.

The invention of the present application is a repeater having a higher decorative function.
The purpose is to realize the record.

[0005]

SUMMARY OF THE INVENTION A digital copying apparatus with a decorative function according to a first invention of the present application is a scanner (3) for optically scanning a document to generate read image information, and the read image information is recorded as an image. Image signal processing means (4) for processing into image information for use,
And a recording means for visualizing the image information for image recording (14)
In a digital copying apparatus equipped with: repeat instruction means (104 to 107) for instructing repeat copying; memory means (12) for storing image information; repeat instruction means (104 to 107) Memory means (12) when copy is set
Image information of m pixels in the main scanning direction × n lines in the sub scanning direction is repeatedly read and output, and in this reading, in the sub scanning direction n line section, memory means addressed to each line in each section.
The memory reading control means (13, 600b) for shifting the first reading from (12) by Xa (= a = m / 2) pixels in the main scanning direction from the preceding section is provided.

The digital copying apparatus with a decorative function of the second invention of the present application processes a read image information by a scanner (3) which optically scans a document to generate read image information. In a digital copying apparatus including an image signal processing means (4) and a recording means (14) for visualizing image information for image recording, repeat instruction means (104 to 107) for instructing repeat copying; Inclination angle instructing means (104) for instructing the inclination angle θ; memory means (12) for storing image information; memory when repeat copying is set in the repeat instructing means (104 to 107) The image information of 2a pixels in the main scanning direction × 2b lines in the sub scanning direction of the means (12) is repeatedly read and output, and in this reading, the memory means (12) for each line in each section in the 2b line section in the sub scanning direction. ), The first read is performed with Xs = 2b in the main scanning direction. Memory reading control means for shifting by one pixel corresponds to tan .theta (13,600
c); is provided.

The digital copying apparatus with a decorative function of the third invention of the present application processes the read image information by a scanner (3) which optically scans a document to generate read image information. In a digital copying apparatus including an image signal processing means (4) and a recording means (14) for visualizing image information for image recording, repeat instruction means (104 to 107) for instructing repeat copying; When repeat copying is set by the repeat instruction means (104 to 107), image information corresponding to m pixels in the main scanning direction × n lines in the sub scanning direction of the memory means (12) is repeatedly read and output. In this reading, in the recording sub-scanning i line section where i ≧ n, the first reading from the memory means to each line in each section is shifted in the main scanning direction, and the memory is read every k pixels. The reading from the means is shifted in the sub-scanning direction Memory read control means (1
3,600 d);

A fourth aspect of the present invention is a digital copying apparatus with a decorative function, in which a scanner (3) optically scans a document to generate read image information, and the read image information is processed into image recording image information. In a digital copying apparatus including an image signal processing means (4) and a recording means (14) for visualizing image information for image recording, repeat instruction means (104 to 107) for instructing repeat copying; Memory means for storing image information
(12); Inclination angle instructing means (104) for instructing the inclination angle θ; Main scanning direction of the memory means (12) when repeat copying is set by the repeat instructing means (104 to 107) Image information corresponding to 2a pixels × 2b lines in the sub-scanning direction is repeatedly read and output, and in this reading, the first reading from the memory means to each line in each sub-scanning i-line section is performed in the main scanning direction. Xs is shifted to Xs according to the change of each section, and Xs is changed in the order of Xs = 2a, a, 0, a, 2a, a, 0, a, 2a, ... And i is changed according to the change of each section. = 2b + 4a · tan (−θ), 2b + 4a · tan (−θ / 2), 2b, 2b + 4a · tan (θ / 2), 2b + 4a · tan (θ), 2b + 4a · tan (θ / 2), 2b, 2b + 4a · tan (-θ / 2), 2b + 4a · tan (-θ), ... In this order, the memory means is read every time k pixels are read. When k is negative, it is returned and shifted in the sub-scanning direction, and when it is positive, it is advanced and shifted, and k is adjusted to k = 1 / tan (-θ), 1 / tan (-θ / 2), ∞, 1 / tan (θ / 2), 1 / tan (θ), ∞, 1 / tan (θ / 2), ∞, 1 / tan (-θ / 2), 1 / tan (-θ ), ..., Memory read control means (13,600d) for switching in this order.

Symbols in parentheses indicate corresponding elements or corresponding matters in the embodiments shown in the drawings and described later.

[0010]

According to the first aspect of the invention, the repeat instruction means (104
When the repeat copying is set in steps 107 to 107), the memory read control means (13, 600b) repeatedly reads the image information of m pixels in the main scanning direction × n lines in the sub scanning direction of the memory means (12). In this reading, in the n-line section in the sub-scanning direction, the first reading from the memory means (12) addressed to each line in each section is performed in the main-scanning direction more than in the preceding section by Xa (= a).
= M / 2) The pixel is shifted. As a result, the conventional method shown in FIG.
Repeat recording of the grid distribution on the grid as shown in (a) of 1 is repeated by Xa (= a) as the recording progresses in the sub-scanning direction y as shown in (b) of FIG. As the position is changed in the main scanning direction x, the decorative effect of the repeat pattern is enhanced.

According to the second aspect of the invention, the memory read control means (13, 600c) is repeated by the repeat instruction means (104-107).
When the copy is set, the image information of 2a pixels in the main scanning direction × 2b lines in the sub-scanning direction of the memory means 12 is repeatedly read and output, and in this reading, each line is divided into 2b line sections in the sub-scanning direction. The first read from the memory means (12) addressed to each line in the section is Xs = 2 in the main scanning direction.
It shifts by a pixel corresponding to b · tan θ. As a result, as shown in FIG. 11C, as the recording proceeds in the sub-scanning direction y, the repeat position is moved by Xs = 2b · tan θ in the main scanning direction x, and the decorative effect of the repeat pattern is enhanced. Become. Since Xs can be selected by the tilt angle indicating means (104), any tilt angle θ (c in FIG. 11) can be set.

According to the third aspect of the invention, the memory read control means (13,600d) is repeated by the repeat instruction means (104 to 107).
When the copy is set, the image information corresponding to m pixels in the main scanning direction × n lines in the sub scanning direction of the memory means (12) is repeatedly read and output, and in this reading, the recording sub scanning i satisfying i ≧ n. In the line section, the first reading from the memory means to each line in each section is shifted in the main scanning direction, and the reading from the memory means is shifted in the sub-scanning direction every time k pixels are read. According to this, FIG.
(D), as the recording proceeds in the sub-scanning direction y, the repeat position is aligned with the main scanning direction x, and the memory means (12) corresponds to the main scanning direction m pixels × sub scanning direction n lines. The image information of the rectangular area is recorded on the recording paper in the parallelogram area that rises (falls) in the sub-scanning direction as the main scanning progresses, and the image is transformed, and the repeat
The decorative effect of the gauze pattern becomes higher and unique.

According to the fourth aspect of the invention, the memory read control means (13,600d) is repeated by the repeat instruction means (104-107).
When copy is set, image information corresponding to 2a pixels in the main scanning direction × 2b lines in the sub scanning direction of the memory means (12) is repeatedly read and output, and in this reading, in the recording sub scanning i line section, The first read from the memory means addressed to each line in each section is shifted by Xs in the main scanning direction, and Xs is set to Xs = 2a, a, 0, a, 2a, a, 0, a, in accordance with the switching of each section. 2a, ... and i in accordance with the switching of each section i = 2b + 4a · tan (−θ), 2b + 4a · tan (−θ / 2), 2b, 2b + 4a · tan (θ / 2), 2b + 4a・ Tan (θ), 2b + 4a ・ tan (θ / 2), 2b, 2b + 4a ・ tan (-θ / 2), 2b + 4a ・ tan (-θ), ... When k is negative, the reading from the means is shifted back in the sub-scanning direction, and when it is positive, it is advanced and shifted. According to the change of minutes, k is k = 1 / tan (-θ), 1 / tan (-θ / 2), ∞, 1 / tan (θ / 2), 1 / tan (θ), ∞, 1 / Switch in the order of tan (θ / 2), ∞, 1 / tan (-θ / 2), 1 / tan (-θ), .... According to this, as shown in (d) of FIG. 11, as the recording proceeds in the sub-scanning direction y, the repeat position becomes 2a, a, 0, a, 2a, a, in the main scanning direction x.
0, a, 2a, ...
The image information of the rectangular area corresponding to (m) pixels in the main scanning direction × n lines in the sub scanning direction in (12) is −θ, −θ / 2), 0, θ / 2, θ with respect to the main scanning direction on the recording paper. , Θ / 2, 0, -θ / 2,-
The images are recorded in parallelogram regions with different angles in the order of θ, ..., The image is deformed and the distribution is wide, the decorative effect of the repeat pattern is higher, the sense of movement is higher, and the image is three-dimensional. It becomes peculiar.

Other objects and features of each invention of the present application will be apparent from the following description of embodiments with reference to the drawings.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment common to the first to fourth inventions. In the full-color copy mode, the scanner 3 optically scans an original to generate three sets of image density signals for R, G, and B color separation. Each image density signal is subjected to gamma correction corresponding to the image reading characteristics of the scanner 3 by the gamma correction circuit of the image processing circuit 4. The three sets of image density signals are then processed by the color correction processing circuit, and Bk, C, M,
The recording density signals of Y are converted. These four sets of recording density signals are subjected to gamma correction corresponding to each color recording characteristic of the laser printer 14 for recording four colors by a gamma correction circuit. The recording density signal is subjected to area gradation processing by a gradation processing circuit, and the C, M and Y recording density signals are output to the image memory 1.
2 and written to the printer 14. Bk
The recording density signal is given to the printer 14 without passing through the memory 12.

FIG. 2 shows a schematic structure of the laser printer 14 of the full color copying machine shown in FIG. The laser printer 14 is composed of a photosensitive drum, a charger, a laser exposure device, a developing device, a transfer device, a cleaner and the like, and a single color recording unit arranged at a predetermined interval (120 mm) as shown in FIG. The recording paper conveyance belt is arranged along these arrangements, and the recording paper is fed by this recording paper conveyance belt to obtain the Bk toner image, C
The toner image, the M toner image, and the Y toner image are sequentially transferred to the recording paper in this order, and the recording paper after the full color transfer is fixed. Bk image recording (exposure: latent image formation) can be started with almost no time delay with respect to the document scanning of the scanner 3, but C image recording, M image recording, and Y image recording are 110 mm and 220 mm, respectively.
It must be started after the document reading for mm and 330 mm has progressed. Therefore, in the full-color copy mode, the image memory 12 has three areas (C memory, C memory, 110 mm, 220 mm and 330 mm) capable of storing gradation-processed image signals as shown in FIG. M memory, Y memory) division (subdivision within 12d)
The C toner image signal, the M toner image signal, and the Y toner image signal are stored in each. That is, an image signal whose recording is delayed by an amount corresponding to the recording (transfer) delay due to the arrangement of each color recording device of the laser printer 14 is delayed in the image memory 12 to compensate for the deviation of the recording of each color due to the recording delay. The image memory 12 is therefore a data delay memory.

In a normal full-color copy in which the copy of the original is faithfully reproduced on the recording paper, the image memory 12 is used as a data delay memory as described above, but a repeat process described later (see FIG. 10, 11), the portion 12r of the image memory 12 stores the image recording signals of each recording color (4 colors) of the repeat unit image (for example, the butterfly of FIG. 10) as shown in FIG. (This is the case of the full color copy setting. When a single color or a mixed color of three colors or less is designated, only the image recording signal of the selected color is stored). The image signal of the required area of the original is stored in the storage area 12r of the memory 12 (1/1
4 or 12r / 4), and then this area 12r
3 is used as the print data source, and the image signals of the area are Ck, M, and Y as shown in FIG. 3 via the buffer memory area 12d of the memory 12 and Bk.
It is repeatedly sent to the printer 14 without going through.

FIG. 4 shows a plane of the operation / display board 1 shown in FIG. The operation / display board 1 has a copy start key 101, a full color copy selection key, and a single color (Bk,
C, M, Y each) copy selection instruction key, composite selection key, composite output key, and other input keys for color recording and composite recording selection, and recording paper size selection key, magnification input Various instruction keys & indicator light area 10 equipped with various input keys for instructing copying of keys and the like and display means such as a status indicator lamp, an alarm lamp, a character display for displaying the number of sheets, etc.
2; Numeric keypad-1 for copy number and other numeric input
04; various two-dimensional liquid crystal panel 103 for various notifications; function keys 105 to 107 for setting editing, processing, color adjustment, etc. using the display of this panel 103.

When the function key 105 is pressed,
A CPU (microprocessor) (not shown) displays a function selection menu on the liquid crystal panel 103. One of the menu items is "Repeat copy", and when you enter the number (0-9) at the beginning of it with the numeric keypad 104 (press the key with that number), the The CPU of Mode 1 performs the display shown in FIG. 4 on the liquid crystal panel 103. "Repeat" in this display means the simple repeat process of the grid distribution on the board shown in FIG. 11 (a). "Shift 1" is shown in Figure 1.
This means a repeat process with a shift in the main scanning direction x shown in (b) of 1. “Shift 2” means a repeat process shown in FIG. 11C, in which the angle θ designated by the input is shifted in the main scanning direction x. In addition, "italics" are shown in FIG.
(D) means a repeat process in which the shift amount in the main scanning direction x changes and the inclination θ of the repeat image with respect to the main scanning direction x changes in the sub scanning direction y.

In the display of the liquid crystal panel 103 shown in FIG. 4, when the operator presses the function key 106, the CPU of the board 1 is
Saves (stores in the input information register) the "repeat" process (input of the instruction). Liquid crystal panel 103 shown in FIG.
When the operator presses the function key 107, the circle display before "Repeat" disappears and the circle display before "Shift 1" appears. The operator operates the function key 10 when it appears.
When 6 is pressed, the CPU of the board 1 saves "shift 1" processing. In the display of the liquid crystal panel 103 shown in FIG. 4, when the operator presses the function key 107 twice, the circle display before "Repeat" disappears and the circle display before "Shift 2" appears. When the operator presses the function key 106 in the displayed state, the CPU of the board 1 saves the "shift 2" processing. In the display of the liquid crystal panel 103 shown in FIG. 4, when the operator presses the function key 107 three times, the circle display before "repeat" disappears and the circle display before "italic" appears. When the operator presses the function key 106 in the displayed state, the board 1
The CPU saves the "italicized" processing.

When the CPU of the board 1 saves the repeat processing mode input in this way, when the repeat processing mode is "shift 2" or slant "italic", the CPU further operates. On the liquid crystal panel 103, a display prompting a tenkey input of the tilt angle .theta. Is displayed, and if there is such an input, it is saved.

When these inputs are completed, the CPU of the board 1
On the liquid crystal panel 103, the extraction area of the image on the document (starting point coordinates, main scanning direction x width m = 2a & sub scanning direction y width n =
A display prompting the input of 2b) is displayed. When this input is received, the extraction area data is saved. Then, on the liquid crystal panel 103, a message "Please set the original and press the start key" is displayed. When the start key 101 is pressed, the CPU of the board 1 informs the main controller 2 of the input (setting) data of the board 1 and the start key on.

The main controller 2 is a repeat processing mode (any one of "repeat", "shift 1", "shift 2" and "italicized") in response to the start key on. Is set, the output of the image processing circuit 4 is set to be stored in the area 12r of the image memory 12 and the scanner 3 is set.
And the memory controller 13 is instructed to write in the area 12r. Then, the image signal of the input area of the original image is written in the area 12r. That is,
The image signal read by the scanner 3 and processed by the image processing circuit 4 includes a main scanning clock CLK, a sub scanning clock LSYNC, and an image head reference pulse STA shown in FIG. 9B.
Specified by RT. When the scanner 3 starts reading the original image, the main controller 2 determines the coordinates of the image recording signal output by the image processing circuit 4 on the original, to the main scanning clock CLK of the scanner 3, the sub-scanning clock LSYNC, and the beginning of the image. Monitoring based on the reference pulse START, and when the coordinates match the starting coordinates of the image extraction area on the document, the area 12r (based on the output address data of the repeat processing circuit 600a is stored in the memory controller 13). In the case of designating four colors, writing to each 1/4 area) is instructed, and a START pulse is given to the repeat processing circuit 600a to give the main scanning clock CLK and the sub-scanning clock LSYNC of the scanner 3. ..

FIG. 5 shows the configuration of the repeat processing circuit 600a. Counter 605a of repeat processing circuit 604a
At the time of this image reading, counts up CLK for reading. When the count value becomes m = 2a given by the controller 2, the comparator 607a causes the counter 60 to
Since it clears 5a, it counts up from 0 again.
As a result, the counter 605a displays 0 (2a), 1, 2,
The count value is updated as 2a-1, 0 (2a), .... The counter 604a counts up the read LSYNC. When the count value becomes 2b given by the controller 2, the comparator 606a causes the counter 60 to
Since 6a is cleared, it counts up from 0 again.
As a result, the counter 605a displays 0 (2b), 1, 2,
The count value is updated as 2b-1, 0 (2b), .. However, in response to the match detection signal of the comparator 606b when the sub-scan reaches 2b from the origin coordinates of the image extraction area. Then, the main controller 2 instructs the memory controller 13 to finish writing in the memory 12r.

That is, while the image processing circuit 4 is outputting the image recording signal of the image extraction area, the repeat processing circuit 60 is provided.
0a generates address data in synchronism with image reading, and the memory controller 13 writes an image recording signal in the area of the memory area 12r designated by this address data. In order to facilitate understanding of the following description, for example, as shown in FIG. 10, the image signal of the butterfly display area of the document is stored in the memory area 12r (area for each color segment) in the main scanning direction x. Width (m is the number of pixels; m = 2a) in the sub-scanning direction y
Then, it is assumed that writing is performed with an n width (n is the number of lines; n = 2b).

When this is finished, the controller 2 instructs the scanner 3 to finish, and the memory controller 13 is provided with a processing circuit (600a, 600b, 600a, 600b) corresponding to the repeat processing mode.
One of 600c and 600d) is designated to instruct the memory reading, and the image signal of the area 12r of the image memory 12 is shown in the mode shown in FIG. 3, and C, M and Y are for information delay of the image memory 12. Through the region 12d, without Bk,
One page of recording paper is repeatedly read and given to the printer 14.

In the repeated reading, when the repeat processing mode is "repeat", the memory controller 13 stores the memory according to the read address data generated by the repeat processing circuit 600a shown in FIG. The image signal of the area 12r is read. When the repeat processing mode is "shift 1", the memory controller 13 reads the image signal in the memory area 12r according to the read address data generated by the shift 1 processing circuit 600b shown in FIG. When the repeat processing mode is "shift 2", the memory controller 1
3 reads the image signal of the memory area 12r according to the read address data generated by the shift 2 processing circuit 600c shown in FIG. When the repeat processing mode is "italic", the memory controller 13 reads the image signal in the memory area 12r according to the read address data generated by the italic processing circuit 600d shown in FIG.

The repeat processing circuit 600a (FIG. 5), at the time of memory reading and recording, extracts the extracted image (two-dot chain line block of FIG. 10) in a grid pattern on the board as shown in FIG. 11 (a). The image signals of the memory 12r (see FIG.
This is a read address generation circuit for generating address data for repeatedly reading a) of 0. Repeat processing circuit 604a
Counter 605a counts the recording CLK and outputs 0 (2a), 1, 2, ... 2a-1, 0 (2
a), ..., The count value is updated and the counter 604a is updated.
Counts the LSYNC for recording, and 0 (2b),
The count values are updated as 1, 2, ... 2b-1, 0 (2b) ,. As a result, in the repeat recording when the "repeat" processing mode is set, the printer 1
4 prints out an image of, for example, a butterfly shown by a chain double-dashed line block in FIG. 10 and blocks 1, 2, 3, ... Shown in (a) of FIG.

FIG. 6 shows the configuration of the shift 1 processing circuit 600b. This is the extracted image (two-dot chain line block in FIG. 10a: sub-scanning direction n = 2) in the entire recording width in the main scanning direction x.
This is an address generation circuit that switches whether or not a read shift of a = m / 2 in the main scanning direction x is switched every time the repeated read of (b width) (repeated read of one block column) is completed. Counter 601 of shift 1 processing circuit 600b
b generates a count-over pulse for each count of n = 2b and inverts the output of the T flip-flop 602b. As a result, the output data Y of the data selector 603b is generated every time the repeated reading of the one block column is completed.
, Are switched to a, 0, a, 0, .... Counter 60
5b counts up the recording CLK from the value represented by the output data Y, and when the count value reaches m = 2a, the comparator 607c clears the counter 605c. The counter 604b counts the recording LSYNC, and when the count value reaches n = 2b, the comparator 606b.
b clears the counter 604b. Therefore, in the reading in the main scanning direction x, in the repeated reading of the odd-numbered block columns such as the first, third, fifth, etc., the reading in the main scanning direction x is 0 (2a), 1, 2 ,. 2a (0), 1, 2,
However, in the repeated reading of the even-numbered block sequence, a, a + 1, a + 2, ... 2a (0), 1, 2,
... 2a (0), 1,2, ... and below 2a (0),
1, 2, ..., By this, when the "shift 1" processing mode is set, the printer 14 displays, for example, the butterfly shown by the chain double-dashed line block in FIG.
The images shown in the blocks 1, 2, 3, ... Shown in FIG. 11B are printed out to obtain the repeat copy shown in FIG.

FIG. 7 shows the configuration of the shift 2 processing circuit 600c. This is the extracted image (two-dot chain line block in FIG. 10a: sub-scanning direction n = 2) in the entire recording width in the main scanning direction x.
Each time the repeated reading of (b width) (repeated reading of one block column) is completed, n · tan θ = 2b in the main scanning direction x.
An address generation circuit that shifts tan θ. The counter 601c of the shift 2 processing circuit 600c generates a count over pulse for each count of n = 2b, and the counter 608c counts this count over pulse.
That is, the output data of the counter 608c is y in the sub-scanning direction.
During the recording process (image signal output process for recording) of block No. Bi (No. in the sub-scanning direction) is represented. Block No. Shift amount Xs in the main scanning direction x with respect to Bi
It is the shift 2 processing circuit 600c that sets Xs = 2b · Bi · tan θ. However, since there is a possibility that a fraction may appear in Xs and this Xs operation processing becomes complicated, in this embodiment,
No. The Xs value corresponding to Bi and θ is calculated in advance, and the data rounded down is stored in the memory 611c. In the memory 6, the counter 608 is set to No. 1 via the 3-state buffer 609. Bi data and .theta. Data from the main controller 2 via the 3-state buffer 610. The memory 611c outputs data indicating Xs corresponding to these Bi and θ. This data Xs is loaded into the counter 605c. As a result, at the beginning of the line extending in the main scanning direction x, the image recording signal is read from the address Xs of the memory 12r. Therefore, when the "shift 2" processing mode is set, the printer 1
4 prints out the images of the butterfly shown by the chain double-dashed line block in FIG. 10 and the blocks 1, 2, 3, ... Shown in FIG. -To copy is obtained. FIG. 8 shows an italic processing circuit 60.
The structure of 0d is shown. The setting of the shift amount of the circuit 600d in the main running direction x has the same circuit configuration as that of the circuit 600c described above. By giving Bi and the angle θ, the main running direction x shift amount pre-allocated to them is loaded to the counter 605d, but the data (shift amount) of the memory 611d is stored in the memory 611c. Different from the above, for example, when θ = 30 °, the block No. For Bi = 0, 1, 2, ..., The shift amount data Xs = 2a, a, 0, a, 2a,
a, 0, a, 2a, ... Are assigned. Further, in the counter 601d, the controller 2 is replaced with the block No. 2b instead of the block 2b. Bi = 0, 1, 2, 3, ...
Width i (number of lines) of one block in the sub-scanning direction corresponding to, i = 2b + 4a · tan (−θ), 2b + 4a · tan (−θ / 2), 2b, 2b + 4a · tan (θ / 2), 2b + 4a · tan (θ), 2b + 4a · tan (θ / 2), 2b, 2b + 4a · tan (-θ / 2), 2b + 4a · tan (-θ), ... Further, the block No. Bi (* in FIG. 8
1) and the line number in the sub-scanning direction in the block represented by the count data of the counter 604d. By (* in FIG. 8
2), the main scanning direction in the block represented by the count data of the counter 605d, the position Bx (* 3 in FIG. 8), and the angle θ given by the controller 2, corresponding to the four main scanning directions k. The sub-scanning direction address data that shifts the read address in the sub-scanning direction y by 1 (backward shift when k is negative, forward shift when positive) is stored in the memory 615d each time reading of pixels progresses. Has been done. In addition,
Block No. Corresponding to Bi = 0, 1, 2, 3, ..., k is k = 1 / tan (-θ), 1 / tan (-θ / 2), ∞, 1 / tan (θ / 2) , 1 / tan (θ), ∞, 1 / tan (θ / 2), ∞, 1 / tan (-θ / 2), 1 / tan (-θ), and so on. Block No. Bi (* 1) and counter 60
4d count data No. By (* 2), the count data x position Bx (* 3) of the counter 605d and the angle .theta. -Given to LA 13. As a result, at the head of the line in the main scanning direction x, the image recording signal is read from the address Xs of the memory 12r, so that the "slanted" processing mode is set.
When the mode is set, the printer 14 displays, for example, the butterfly shown by the two-dot chain line block in FIG.
The image shown in each of blocks 1, 2, 3, ... Shown in FIG. 14 is printed out, and the repeat copy shown in FIG. 14 is obtained.

As described above, according to the above-described embodiment, it is possible to obtain the repeat copy having the grid distribution on the grid similar to the conventional one shown in FIG. 11A, as a matter of course. The block distribution is shown in (b), the repeat copy is shifted by a predetermined pattern in the main scanning direction as shown in FIG. 12, and the block distribution is shown in (c) of FIG. As shown in the figure, the repeat copy having a so-called screen angle, which is shifted in the main scanning direction and continuously changed in the sub scanning direction, or the block distribution is shown in FIG. As shown in a concrete example, it is possible to obtain a repeat copy in which the shift amount changes back and forth in the main scanning direction and the inclination of one unit changes in accordance with the progress in the sub scanning direction.

[0032]

As described above, according to the first and second inventions of the present application, a repeat pattern having a position change in the main scanning direction and a high decorative effect can be obtained. According to the third and fourth aspects of the invention, a repeat pattern having a change in the position in the main scanning direction and a change in the inclination angle of the unit pattern and having a high decorative effect and a high dynamic feeling can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment common to each invention of the present application.

FIG. 2 is a block diagram showing an outline of an image memory 12 and a printer 14 in the embodiment shown in FIG. 1, and shows a usage mode of the memory 12 in a normal full color copy process.

FIG. 3 is a block diagram showing an outline of an image memory 12 and a printer 14 of the embodiment shown in FIG. 1, and shows a usage mode of the memory 12 at the time of repeat copy processing.

FIG. 4 is a plan view of the operation / display board 1 shown in FIG.

5 is a block diagram showing a configuration of a repeat processing circuit 600a shown in FIG.

6 is a block diagram showing a configuration of a shift 1 processing circuit 600b shown in FIG.

7 is a block diagram showing a configuration of a shift 2 processing circuit 600c shown in FIG.

8 is a block diagram showing a configuration of an italic processing circuit 600d shown in FIG.

9A is a plan view schematically showing a storage area for repeat copy processing of the image memory 12 shown in FIG. 1, and FIG. 9B is a plan view showing writing of image information in the storage area. It is a time chart which shows an electric signal used at times.

10 is an image on a document in repeat copy processing by the digital color copying machine shown in FIG. 1 and image information written in a storage area of the image memory 12 shown in FIG. 1 for repeat copy processing. It is a top view which shows the relationship of.

11 is a plan view showing a repeated recording distribution of a unit pattern of a repeat copy obtained by the repeat copy processing by the digital color copying machine shown in FIG. 1, and FIG.
(B) shows the distribution obtained by reading the image information by the image processing circuit 600a, (b) shows the distribution obtained by the image information reading by the processing circuit 600b, and (c) shows the distribution obtained by the shift 2
The distribution obtained by reading the image information by the processing circuit 600c is shown, and (d) shows the distribution obtained by reading the image information by the italic processing circuit 600d.

FIG. 12 is a block diagram of the digital color copying machine shown in FIG.
A repeater obtained by using the shift 1 processing circuit 600b
It is a top view which shows the specific example of a copy.

FIG. 13 is a block diagram of the digital color copying machine shown in FIG.
A repeater obtained by using the shift 2 processing circuit 600c
It is a top view which shows the specific example of a copy.

FIG. 14 is a diagram of the digital color copying machine shown in FIG.
It is a top view which shows the specific example of the repeat copy obtained by using the italic processing circuit 600d.

[Explanation of symbols]

1: Operation / display board 2: Control
LA 3: Scanner 4: Image processing circuit 12: Image memory 12r: Repeater
Storage area for copy 12d: Storage area for information delay 13: Memory controller 14: Full color laser printer 600a: Repeat processing circuit 600b: Shift 1 processing circuit 600c: Shift 2 processing circuit 600d: Italic processing circuit

Claims (4)

[Claims] 1. A scanner for optically scanning a document to generate read image information, image signal processing means for processing the read image information into image recording image information, and visualizing the image recording image information. In a digital copying apparatus provided with a recording means, a repeat instructing means for instructing repeat copying; a memory means for storing image information; and a repeat copying operation set by the repeat instructing means, Image information of m pixels in the main scanning direction × n lines in the sub-scanning direction of the memory means is repeatedly read and output, and in this reading, in the sub-scanning direction n line section, the first information from the memory means addressed to each line in each section. A digital copying apparatus with a decorative function, comprising: a memory reading control unit for shifting the reading of the above from the preceding section by Xa pixels in the main scanning direction. 2. A scanner for optically scanning a document to generate read image information, image signal processing means for processing the read image information into image recording image information, and visualizing the image recording image information. In a digital copying apparatus equipped with a recording means, a repeat instruction means for instructing repeat copying;
Tilt angle instructing means; memory means for storing image information; when repeat copying is set by the repeat instructing means, 2a pixels in the main scanning direction of the memory means.
The image information of the 2b line in the sub-scanning direction is repeatedly read and output, and in this reading, in the sub-scanning direction 2b line section, the first reading from the memory means to each line in each section is performed in the main scanning direction by Xs =. A digital copying apparatus with a decorative function, comprising: a memory reading control unit that shifts by a pixel corresponding to 2b · tan θ. 3. A scanner for optically scanning a document to generate read image information, image signal processing means for processing the read image information into image recording image information, and visualizing the image recording image information. In a digital copying apparatus provided with a recording means, a repeat instructing means for instructing repeat copying; a memory means for storing image information; and a repeat copying operation set by the repeat instructing means, Image information corresponding to m pixels in the main scanning direction × n lines in the sub-scanning direction of the memory means is repeatedly read and output, and in this reading, in the recording sub-scanning i-line section where i ≧ n, each line in each section is addressed. Memory read control means for shifting the first read from the memory means in the main scanning direction, and for each k pixel read, shifting the read from the memory means in the sub scanning direction; Decorative function with digital copying apparatus according to claim. 4. A scanner for optically scanning a document to generate read image information, image signal processing means for processing the read image information into image recording image information, and visualizing the image recording image information. In a digital copying apparatus equipped with a recording means, a repeat instructing means for instructing repeat copying; a memory means for storing image information; an inclination angle instructing means for instructing an inclination angle .theta .; -When copying is set, 2a pixels in the main scanning direction of the memory means x
Image information corresponding to 2b lines in the sub-scanning direction is repeatedly read and output, and in this reading, the first read from the memory means to each line in each sub-scanning i-line section is shifted by Xs in the main scanning direction. Then, according to the switching of each section, Xs is switched in the order of Xs = 2a, a, 0, a, 2a, a, 0, a, 2a, ... And according to the switching of each section, i is i = 2b + 4a. tan (−θ), 2b + 4a · tan (−θ / 2), 2b, 2b + 4a · tan (θ / 2), 2b + 4a · tan (θ), 2b + 4a · tan (θ / 2), 2b, 2b + 4a · tan (- .theta. / 2), 2b + 4a.tan (-. theta.), ... In this order, every time k pixels are read, the reading from the memory means is shifted backward in the sub-scanning direction when k is negative, and when it is positive. Forwardly shift and k according to the switching of each section k = 1 / tan (-θ), 1 / tan (-θ / 2), ∞, 1 / tan (θ / 2), 1 / t Memory read control means for switching in order of an (θ), ∞, 1 / tan (θ / 2), ∞, 1 / tan (-θ / 2), 1 / tan (-θ), ... A digital copying machine with a decoration function.