JP2952078B2 - Image processing method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing method and apparatus, and more particularly to an image processing method and apparatus for recording received information as image information.

[0002]

2. Description of the Related Art FIG. 1 shows a PDL (Page Description L).
An example of a coordinate system (hereinafter, this coordinate system is referred to as a user coordinate system) serving as a reference for coordinate points or the like specified when drawing a figure or character using an anguage or a page description language) or a page description command. Is shown. A hatched rectangular portion indicates an effective printing area (an area that can be drawn on the paper). I do. The coordinate system in this figure is
This is a two-dimensional xy orthogonal coordinate system, and has the origin at the lower left corner of the effective print area as shown in the figure. Also, the coordinate units of this coordinate system can be set freely (for example, 0.01 mm or 1/72 in
ch etc.). PDL description elements such as graphic drawing and page description commands set based on the user coordinate system described above are analyzed inside the image processing apparatus in the order received by the image processing apparatus, and converted into information for developing in a memory. Is converted.

FIG. 2 shows an example of a coordinate system (hereinafter, this coordinate system is referred to as a printer coordinate system) which is a reference for creating the above-described memory development information. The coordinate unit of the coordinate system is determined by the resolution of the image processing device. (For example, when the resolution is 300 dpi, the coordinate unit is 1/300 inch.) The hatched rectangular portion is the same as the effective print area in FIG. This coordinate system is a two-dimensional xy orthogonal coordinate system,
The origin is at the upper left corner of the effective print area.

FIG. 3 shows an example of a memory map of an internal RAM area in an image processing apparatus that performs color printing based on a PDL or a page description command. R
The AM area includes a memory for system work, a free area, and Y (Yellow) and M (Magent), which are color materials (toner and ink).
a), C (Cyan), and Bk (Black) page development memories (memory for the size of the effective print area in FIG. 2). The system work memory is used as a storage area for information (variables and the like) used for control inside the image processing apparatus, a fixed work area, and the like. The free area is used for storing memory development information, a character cache memory, and the like.

FIG. 4 shows an example of a line color designation command among the drawing attribute designation commands. This command
Used to specify the color of the outline of a line or figure. Command No. Differs depending on the designation of the drawing attribute, and is used to identify each command function. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. Here, the content of the data number parameter of the line color designation command is 4. The Y value, M value, C value, and Bk value are Y (Yellow), M (Magenta), C (Cyan),
It shows the density data value of Bk (Black).

FIG. 5 shows an example of a circle drawing command among the drawing commands. Command No. Is different for each drawing function, and is used to identify each command function. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. Here, the content of the data number parameter of the circle drawing command is 3. The x and y coordinates of the center are coordinates on the user coordinate system. The magnitude of the radius is a value obtained by multiplying the coordinate unit of the user coordinate system by that value.

FIG. 6 shows an example of memory development information created by analyzing the line color designation command of FIG. Here, the command table No. Are used to identify each piece of memory development information. The contents of other parameters are the same as in FIG.

FIG. 7 shows an example of memory development information created by analyzing the circle drawing command of FIG. Here, the command table No. Are used to identify each piece of memory development information. xc and yc are the center coordinates of a circle on the printer coordinate system. The value of r is a radius value converted so that the resolution of the image processing apparatus becomes a unit.

FIG. 8 shows a diagram of the user coordinate system shown in FIG.
FIG. 11 is a diagram when a coordinate unit is set to 1 mm, and drawing of a circle having a center coordinate (150, 150) and a radius of 50 is set.

FIG. 9 shows an example of a command issued when setting the circle drawing of FIG.

FIG. 10 shows a case where the circle drawing on the user coordinate system of FIG. 8 is converted into a circle drawing on a printer coordinate system with a coordinate unit of 1/300 inch (about 1 / 11.8 mm). As shown in the figure, here, the effective print area height is 400 mm.
The x coordinate of the center is 1770 (150 × 11.8), and the y coordinate is 2950 (250 × 1
1.8), the radius is 590 (50 × 11.8).

FIG. 11 shows an example of the memory development information of the circle drawing of FIG. 10 created by analyzing the circle drawing command of FIG.

FIG. 12 shows the circle drawing of FIG. 8 in yellow (color material Yell).
An example of a line color designation command issued when drawing with a density of ow (100% color) is shown. Here, Y value, M value, C
Value and Bk value are in the range of 0 to 255, and Y value is 25.
5 and other values are 0.

As described above, conventionally, in controlling an image processing apparatus that performs color printing based on a PDL or a page description command, Y (Yell) which is a color material of toner or ink is used.
ow), M (Magenta), C (Cyan), and Bk (Black) each use a development memory corresponding to the size of the effective print area of the paper.

[0015]

However, the above-mentioned prior art has the following drawbacks. (1) In a printer of an ink jet system or the like which can stop in the middle of recording of paper and restart recording from there, PDL
In order to control the color recording based on the page description command and the page description command, it is not always necessary to use a memory corresponding to the size of the effective printing area of the paper for each of Y, M, C, and Bk. could not. (2) It takes a long time to draw in order to analyze all page description elements and page description commands for one page recording and to start recording after completing memory development of figures and characters. (3) In a printer of an ink jet system or the like in which a print head can be moved up, down, left, and right, in order to control color printing using PDL and page description commands, control is performed such that the head moves only in the drawing range, or the drawing range is controlled. Y,
Since it was not controlled to print only the contents of the memory where the drawing pattern actually exists among the memories of M, C, and Bk, it took time to draw.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has as its object to provide, for example, a page printer of an ink jet system, etc.
For each of the color elements M, C, and Bk, a memory having a size corresponding to the effective print area of the entire sheet is used for developing bit image data. An object of the present invention is to provide an image processing method and apparatus capable of eliminating printing waste in scanning, shortening recording time and saving memory.

[0017]

In order to solve the above-mentioned problems, the present invention is directed to an image processing apparatus which receives print data described in a page description language and draws an image drawn in a band unit in a storage unit based on the print data. Controlling the data printing process, analyzing the print data, and expanding the data in the band memory of the storage means;
The drawing position the drawing target memory development information is information for opening is drawn determined by the printer coordinate system when drawing the drawing object in the band memory, the address in the storage means of the band memory, A head address in the storage means is obtained and updated as a head address of a printer coordinate system of a virtual page memory serving as a reference for the band memory, and the updated head address of the printer coordinate system and the obtained drawing object And an image processing method and apparatus for developing and rendering the drawing target in the band memory based on the drawing position of the image data.

[0018] In order to solve the above-mentioned problems, the present invention preferably provides the memo that is obtained by analyzing the print data.
Re-expansion information elephant and the printer coordinate system
The image processing apparatus further includes a holding unit that holds a drawing target of the memory expansion information in association with a band to be drawn, and the expansion unit, when performing the expansion processing on a certain band memory, the content stored in the holding unit. , A rendering process of a drawing target to be drawn in the band memory is performed. In order to solve the above problem, according to the present invention, preferably, the analysis means converts print data described in a page description language having a first type of color attribute into a second type of color attribute. In order to solve the above problem, according to the present invention, preferably, the updating means updates a start address for each band memory corresponding to a color to output the drawing target . In order to solve the above problem, the present invention is preferably arranged such that the printing unit has a recording head for controlling a recording process of the developed data, and the band memory has an integer of a height of the recording head. It is possible to store bit image data of a rectangular area having a side of double.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 13 is a block diagram showing a circuit configuration of the image processing apparatus according to one embodiment of the present invention.
As shown in FIG. 13, the image processing apparatus according to the present embodiment includes a host computer 1 and an image processing apparatus main body 2.

The host computer 1 sends print data, a print command, and the like to the image processing device as in a process shown in a flowchart described later, and causes the image processing device to perform a recording process. The image processing device is a CPU,
It has a microprocessor system including a ROM and a RAM. That is, the image processing apparatus main body includes an interface 2 for transmitting / receiving data to / from the host computer 1,
Command No. of the command sent from the host computer 1 A command analysis table 4 for storing a jump address to an analysis program corresponding to the program. The command analysis table 4 analyzes print data and commands sent from the host computer 1 and creates one page of information that can be developed in a development memory. The command analysis unit 3 includes a band height information table 6 storing band heights and information (memory capacity) of development memories for one color material corresponding to the band heights, and band information in which band height information and the like are stored. A storage unit 5, a color reproduction information storage unit 7 in which information necessary for color reproduction processing is stored,
A color reproduction processing unit 8 for performing color reproduction processing, a character information storage unit 9 for storing information for drawing characters, a control unit 10 for controlling the apparatus, an attribute information storage area 12 for storing attribute information, and a memory A memory development information storage unit 11 having a memory development information storage area 13 for storing information for development into a command execution jump table 1 (15) and a command execution jump table 2 (16), and the memory development information is analyzed. A memory development information analysis unit 14, a pattern development unit 17 for developing the analyzed memory development information in a development memory 18, a path control table 20 for controlling print head movement control and the like, and an output buffer 21. Unit 19 for outputting a permanent visible image on paper, operation panel 2 capable of changing and setting printing environment parameters
2. A data bus 23 is provided.

FIG. 14 is a detailed view of the vicinity of the head of an image processing apparatus of the ink jet type. Reference numeral 101 denotes a head unit in which a large number of inkjet heads are arranged in the sub-scanning direction for one type of coloring material.
It has C and Bk units. Reference numeral 102 denotes an ink tank for each head unit, 103 denotes a signal line, and 104 denotes a carriage drive motor that moves a carriage on which the head unit is mounted along a rail in cooperation with a transport belt. 107 is a recording paper, 108 is a platen, 109,
110 is a recording paper transport roller, 111 is a recording paper roll, 1
Numeral 12 indicates guide rollers. The head unit 101 is composed of a plurality of inkjet heads using the heating elements shown in FIG. 15, but an inkjet head using electromechanical conversion means such as a piezo element can of course be used. FIG. 15 shows the head unit 101 of FIG.
FIG. In the figure, the head unit has Y, M, C, and Bk nozzles each corresponding to the head height. That is, the head unit 101 has a yellow ink discharge nozzle, a magenta ink discharge nozzle, a cyan ink discharge nozzle, and a black ink discharge nozzle.

FIG. 16 shows an example of a band structure. As shown in the figure, a rectangular area whose horizontal length is the effective print area width of the paper and whose vertical length is the height of the head is defined as a segment. One band is a region in which the segments are arranged vertically as shown in the figure, and has a size of an integral multiple of the segment. Therefore, the band height (band height)
Is an integral multiple of the head height. In this example, one band is composed of four segments.

FIG. 17 shows an example in which the effective print area of the paper is divided into eight bands having a band height of 512 scan lines. As shown in the figure, the eight bands have band Nos. 0 to 7 respectively. Is attached.
When the number of bands is n, the band No. Is 0- (n-
1). Points on the printer coordinates such as (0,512) in the figure indicate points in the upper left corner of each band area,
It is calculated by (0, (n-1) × 512). The effective print area height is not always an integral multiple of the band height as shown in the figure, and the height of the final band (7 bands in the figure) may be equal to or less than the band height.

FIG. 18 is a diagram showing the RA inside the color image processing apparatus.
4 shows an example of a memory map of an M area. The RAM area includes a memory for system work, a free area, and color materials (toner and ink) Y (Yellow), M (Magenta), and C (Cya).
n) and Bk (Black) each for one band of memory (FIG. 17)
(A memory corresponding to the size of one band area). The system work memory is used as a storage area for information (variables and the like) used for control inside the image processing apparatus, a fixed work area, and the like. The free area is used for storing memory development information, a character cache memory, and the like. The dotted line indicates the size of the RAM area in FIG. As described above, since the development memory can be reduced to 1/8 of that in FIG. 3, color recording can be performed with a smaller RAM area than in the related art.

FIG. 19 shows that Y (Yello
3 shows an example of a memory map in the case where one band of memory is further added to each of w), M (Magenta), C (Cyan), and Bk (Black). Also in this case, since the development memory can be reduced to 1/4 of that in FIG. 2, color recording can be performed with a smaller RAM area than in the related art.

FIG. 20 shows the attribute information storage area (RAM) shown at 12 in FIG. The attribute information storage area includes an area for temporarily saving the drawing attribute information used when developing the data in the memory, and a variable area in which the drawing attribute information is set. As shown in the figure, a save area is determined for each drawing attribute, and m pieces of information can be saved. lwidth, lymck, and the like indicate variables in which each piece of drawing attribute information is set.

FIG. 21 shows an example of the path control table shown at 20 in FIG. Here, the path is defined in FIG.
As shown by, the width is the effective print area width and the height is the height of the head, and is the area where the print head actually moves horizontally. In the figure, n of the pass n corresponds to a value of (the number of passes) −1 in the effective print area of the paper. The path control table stores information for controlling the horizontal movement of the print head and information for ascertaining the presence or absence of the contents of the development memory for recording. In the drawing, the minimum value and the maximum value indicate the minimum value and the maximum value of the drawing range in the pass, respectively, and are values in the + x direction on the printer coordinates. The minimum value corresponds to the horizontal movement amount (the unit is determined by the resolution of the image processing apparatus) in which the print head can move idle without recording the contents of the development memory. The maximum value indicates the maximum value in the horizontal direction at which the print head moves from the minimum value while recording the contents of the development memory. In the drawing, a drawing memory information flag is a flag indicating whether a pattern is developed in the development memories of Y, M, C, and Bk corresponding to the paths, respectively.
Bk is composed of four bits, one bit each. If the bit is ON, the pattern is expanded in the expansion memory, and if OFF, it indicates that the pattern is not expanded.

FIGS. 22, 23, and 24 show a color image processing apparatus which receives page description command data in page units and performs recording control in page units.
M (Magenta), C (Cyan), Bk (Black) 1 each
4 shows a flowchart when color recording is performed using only memories for bands. In step S1, the path control table shown in FIG. 21 is initialized (initial value setting), and the process proceeds to step S2. In step S2, the attribute information storage area shown in FIG. 20 is secured in the RAM, and the process proceeds to step S3.
In step S3, one set of command data (a unit of one such as a drawing command or a drawing attribute command) is read.
Proceed to 4. In step S4, the command data is analyzed by the command analyzer 3, and the process proceeds to step S5. In step S5, if there is any remaining command data of one page, the process returns to step S3; otherwise, the process proceeds to step S6. In step S6, the drawing attribute information necessary for data expansion of the memory at this point is temporarily saved in the save area of the attribute information storage area 12 secured in step S2, and the process proceeds to step S10. In step S10, 0 is set to a constant i, and the flow advances to step S11. In step S11, the first memory development information (one set) stored in the memory development information area 13
The pointer is set at the head of, and the process proceeds to step S12.
In step S12, the memory development information read in step S11 is analyzed by the memory development information analysis unit 14, and the development memories (Y, M, C,
(Bk band memories), and then proceeds to step S13. If there is any remaining memory development information in step S13,
Proceeding to step S14, a pointer is set at the head of the next memory development information (one set), and the process returns to step S12. If not, the process proceeds to step S15. In step S15, the contents of the memory expanded in step S12 are color-recorded by the output unit 19, and the flow advances to step S16. In step S16, i is incremented by one, and the process proceeds to step S17. In step S17, the Y, M, C, and Bk band memories are cleared, and the flow advances to step S18. In step S18, the number of bands is compared with i, and if they match, the process ends. If they do not match, the process proceeds to step S19,
At 6, the drawing attribute temporarily saved in the save area of the attribute information storage area 12 is loaded, set in the variable area of the attribute information storage area 12, and the process returns to step S11. Through the processing described above, page description command data is received for each page, and Y (Yellow), M (Magenta), C (Cyan),
Color recording can be performed using only one band of Bk (Black) memory.

FIG. 25 is a flowchart when the path control table is initialized in step S1 of FIG. In step S20, a pointer is set at the head of the path control table in FIG. 21, and the process proceeds to step S21.
In step S21, 0 is set to a constant m, and step S21 is executed.
Proceed to 22. In step S22, a value larger than the effective print area width (the unit is a unit of printer coordinates) is set in a constant k, and the flow advances to step S23. In step S23, the value of k is set to the minimum value of the path indicated by the pointer, and step S23 is executed.
Proceed to 24. In step S24, 0 is set to the maximum value of the path indicated by the pointer, and the flow advances to step S25. In step S25, the drawing memory information flag pointed to by the pointer is set to 0.
Clear and go to step S26. In step S26,
The values of m and n are compared, and if m is equal to or greater than n, the process ends. If not, the flow advances to step S27 to advance the pointer by one, and further advances to step 28 to add 1 to m and returns to step S23. Through the above processing, the path control table can be initialized.

FIG. 26 shows the contents of the path control table initialized by the flowchart of FIG.

FIG. 27 shows a drawing attribute designation command.
An example of a color designation command (line color designation, fill color designation, character color designation) is shown. The line color designation command is used to designate the color of a straight line or the outline of a figure. The fill color specification command is used to specify the color of the internal fill of the closed figure. The character color designation command is used to designate a character color. Command No. Differs depending on the color designation, and is used for identifying a command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. The content of the type flag parameter indicates the type of the color designation data. here,
(A) shows that when the type flag value is 0, the color designation data is luminance data values of R (Red), G (Green), and B (Blue) which are three primary colors of light. (B) shows the case where the type flag value is 1, and the color designation data is L ^* , L ^* ,
The data values are a ^* and b ^* . (C)
Indicates that the type flag value is 2, and the color designation data is Y (Yellow), M (Magen
ta), C (Cyan), and Bk (Black).

FIG. 28 shows a drawing attribute designation command.
An example of a line width designation command, a clip area designation command, and a paint definition designation command is shown. Command N
o. Depends on the designation of the drawing attribute, and is used for identifying the command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. (A)
The line width designation command is used to designate the line width of the outline of a straight line or figure. Here, the line width value has a coordinate unit of the user coordinate system as a unit. The clip area designation command (b) is used to designate a drawable range of figures, characters, and the like. Here, the minimum and maximum values of x and y are based on the coordinate unit of the user coordinate system.
The fill definition specification command (c) is used to specify the fill pattern inside the contour of the closed figure and the presence / absence of the contour. Here, the fill pattern N
o. Is used to identify the fill pattern, and the pattern No. Is 0 when there is no fill pattern (blank), and when it is not 0, it indicates a fill pattern such as a hatch pattern. When the contour flag is 0, it indicates that there is no contour line, and when it is 1, it indicates that there is a contour line.

FIG. 29 shows an example of a straight line drawing command and a polygon drawing command among the drawing commands. Command No. Differs depending on the drawing function, and is used for identifying a command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. The straight line drawing command is used to draw a straight line. The polygon drawing command is used to draw a polygon. Here, the x, y coordinate values of the coordinates 1 to n are coordinate values on the user coordinate system.

FIG. 30 shows an example of a circle drawing command and a character drawing command among the drawing commands. Command No. Differs depending on the drawing function, and is used for identifying a command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. (A)
Is used to draw a circle. Here, the x and y coordinates of the center are coordinates on the user coordinate system. The magnitude of the radius is a value obtained by multiplying the coordinate unit of the user coordinate system by that value. The character drawing command of (b) is
Used to draw characters. Here, the x and y coordinates of the drawing position are coordinates on the user coordinate system indicating the reference start position of the character drawing. The character data indicates a character string to be printed (eg, ABC).

FIG. 31 is a command analysis jump table (ROM) shown in 4 of FIG. 13 in which a jump address to a function for analyzing each drawing command and each drawing attribute command is stored. Command No. A jump address to each command analysis function is stored corresponding to (0 to n).

FIG. 32 is a flowchart showing the details of the command data analysis process in step S4 of FIG. In step S30, the command No. is determined from the command data (one set). And proceeds to step S31. In step S31, a pointer is set at the head of the command analysis jump table in FIG. 31, and the flow advances to step S32.
In step S32, the command No. The pointer is advanced by an amount corresponding to, and the process proceeds to step S33. Step S33
Then, the content (jump address) indicated by the pointer is extracted, and the flow advances to step S34. In step S34, the function indicated by the jump address is executed, and the process ends.

FIGS. 33 to 35 show steps S34 of FIG.
5 is a flowchart showing in detail a process when a color designation command analysis function is executed. Step S4
0, the min band No. , Max band No. Is set in the memory development information area 13 and the process proceeds to step S41. In step S41, from the command to the command No. Is read and set in the memory development information storage area 13 to advance the pointer, and the flow proceeds to step S42. Step S4
In step 2, the number of data is read from the command, (number of data−1) is set to a constant n, and the flow advances to step S43. In step S43, 4 is set as the number of data in the memory development information area 13 to advance the pointer, and the flow advances to step S44. In step S44, the type parameter is read from the command, and is set in the type flag Csmflg.
Proceed to 45. In step S45, color specification data for n constants is read, and the flow advances to step S46. Step S4
In step 6, the value of the type flag Csmflg is compared with 0. If it is equal to 0, the color designation data read in step S45 is R, G, B luminance data, and the flow advances to step S49 to convert the R, G, B luminance data into Y, M, C, Bk density data. And the process proceeds to step S53. If it is not equal to 0, the process directly proceeds to step S47. Step S4
At 7, the value of the type flag Csmflg is compared with 1. If the value of the type flag Csmflg is equal to 1, the color designation data read in step S45 is the L ^* , a ^* , b ^* data of the uniform perception color space defined by the CIE (International Commission on Illumination) in 1976. Then, the process proceeds to step S50, where CIE L ^* ,
The a ^* and b ^* data are converted into CIE XYZ (XYZ color system defined by CIE in 1931) data, and step S5
Proceed to 1. In step S51, the CIE XYZ data is converted into R, G, and B luminance data, and the flow advances to step S52. In step S52, the luminance data of R, G, and B is changed to Y,
The data is converted into M, C, and Bk density data, and the flow advances to step S53. If the value of the type flag Csmflg is not equal to 1 in step S47, the process directly proceeds to step S48. In step S48, the value of the type flag Csmflg is compared with 2. If it is equal to 2, the color designation data read in step S45 is Y, M, C, and Bk density data,
Proceeding to step S53, the density data of Y, M, C, and Bk are set in internal variables (Lymck, Fymck, Tymck), and the flow advances to step S54 to store the density data of Y, M, C, and Bk in the memory development information storage area. Set to 13 to advance the pointer and end the process. If it is not equal to 2, the process ends. As described above, the color designation command is analyzed and the memory development information for color designation is created.

FIG. 36 is a flowchart showing in detail the processing when the line width designation command analysis function is executed in step S34 of FIG. Step S60
And the min band No. , Max band No. Is set in the memory development information area 13 and the process proceeds to step S61.
In step S61, from the command to the command No. Is read and set in the memory development information area 13 to advance the pointer, and the flow proceeds to step S62. In step S62, the number of data is read from the command, set in the memory development information area 13 as the number of data, the pointer is advanced, and the flow advances to step S63. In step S63, a line width value parameter is read from the command, and the flow advances to step S64. In step S64, the read line width value is converted into a pixel (dot) value based on the resolution of the image processing apparatus, and the process proceeds to step S65. In step S65, the converted line width value is set in the internal variable Lwidth, and the flow advances to step S66. In step S66, the converted line width value is set in the memory development information storage area 13, the pointer is advanced, and the process ends. As described above, the line width designation command is analyzed and the memory development information for line width designation is created.

FIG. 37 is a flowchart showing in detail the processing when the clip area designation command analysis function is executed in step S34 of FIG. In step S70, the min band No. , Max band No. Is set in the memory development information area 13, and the process proceeds to step S71. In step S71, from the command to the command No.
Is read and set in the memory development information area 13 to advance the pointer, and the flow proceeds to step S72. Step S72
Then, the number of data is read from the command, set as the number of data in the memory development information area 13 and the pointer is advanced, and the process proceeds to step S73. In step S73, the minimum and maximum x and y parameters of the clip area are read from the command, and the flow advances to step S74. Step S74
Then, the minimum and maximum values of the read x and y are converted to values xmin, ymin, x on the printer coordinates based on the resolution of the image processing apparatus.
max and ymax, and the process proceeds to step S75. In step S75, the values of xmin, ymin, xmax, and ymax are set in cxmin, cymin, cxamx, and cymax, respectively, and the flow advances to step S76. In step S76, the above xmin, ym
The values of in, xmax, and ymax are set in the memory development information area 13 and the pointer is advanced to complete the processing. As described above, the clip area designation command is analyzed, and memory development information for clip area designation is created.

FIG. 38 is a flowchart showing in detail the processing when the paint definition specifying command analysis function is executed in step S34 of FIG. In step S80, the min band No. , Max band No.
Is set in the memory development information storage area 13 and step S
Go to 81. In step S81, from the command to the command No. Is read and set in the memory development information storage area 13 to advance the pointer, and the flow proceeds to step S82. In step S82, the number of data is read from the command, set in the memory development information storage area 13 as the number of data, the pointer is advanced, and the flow advances to step S83. Step S8
3, the paint pattern No. from the command. Is read and set in the memory development information storage area 13 to advance the pointer, and the flow proceeds to step S84. In step S84,
The contour flag is read from the command and set in the memory development information storage area 13 to advance the pointer.
Proceed to 85. In step S85, the paint pattern N
o. Is set in the internal variable Fpat, and the process proceeds to step S86. In step S86, the contents of the contour flag are stored in the internal variable Fp.
Set to ermt and end the process. As described above, the fill definition designation command is analyzed, and the memory development information of the fill definition designation is created.

FIG. 39 shows FIGS. 33, 36, 37 and 3
In steps S40, S60, S70, and S80 of No. 8, the min band No. , Max band No. 7 is a flowchart showing in detail a process of setting a value in a memory development information area. In step S90, the min band No.
Is set to 0, and the process proceeds to step S91. In step S91, the min band No. Is set in the memory development information storage area 13 and the pointer is advanced.
Proceed to. In step S92, information on the current number of bands is extracted from the band information storage unit 5, and the flow advances to step S93. In step S93, the value of (number of bands−1) is set to max.
Band No. And the process proceeds to step S94. In step S94, the max band No. Is set in the memory development information storage area 13 to advance the pointer, and the process ends. As described above, in the memory development information of the drawing attribute, the min band No. is set so that the memory development information is analyzed for each band process. 0, max band No. Is set to the value of (number of bands -1).

FIG. 40 shows steps S49 and S52 in FIG.
2 shows an example of the color reproduction processing indicated by. In process 1, a density conversion process of performing LOG conversion on R, G, and B values as luminance information and converting the values into C, M, and Y as density information is performed. In process 2, undercolor removal processing for extracting the value of Bk from the values of C, M, and Y is performed. In process 3,
Masking processing is performed to correct the unnecessary absorption characteristics of the C, M, and Y toners or inks and perform appropriate color reproduction. In process 4, γ conversion processing is performed to adjust contrast and brightness according to the image. The above processing is performed in the color reproduction processing unit 8 using the information in the color reproduction processing information storage unit 7. In addition, R, G,
It is assumed that the conversion procedure between the B data and the CIE XYZ data is clear.

FIG. 41 shows an example of the color conversion processing shown in step S50 of FIG. The CIE L ^* , a ^* , and b ^* data are converted to CIE by the equations shown in (a) to (d).
It is possible to convert to XYZ data. Where X
n, Yn, and Zn are values determined depending on which CIE standard light source is used.

FIG. 42 shows an example of the color conversion processing shown in step S51 of FIG. The CIE XYZ data can be converted into R, G, B luminance data by the matrix conversion formula shown in the figure. Here, the parameter values of the matrix are determined by which CIE standard light source follows. In this example, the values are when the CIE standard light source is D65.

FIGS. 43 to 45 show steps S34 of FIG.
5 shows the processing when the straight line drawing command analysis function is executed. At step S600, data is set in the work area and xmin, ymin, xmax, ym
ax is set, and the process proceeds to step S601. Step S
At 601, a drawing range is calculated (straight line and polygon), and
Proceed to step S602. In step S602, a clip check of the drawing range is performed, and the process proceeds to step S603. In step S603, the drawing range flag set in the drawing range clip check is checked. If the drawing range flag is ERROR, the process ends. If the drawing range flag is not ERROR, the flow advances to step S604 to set color designation information (straight line), and then to step S605. In step S605, information is set in the path control table 20 used by the output unit 19, and step S606 is performed.
Proceed to. In step S606, the min band No. , M
ax band No. Is calculated, and the process proceeds to step S607. In step S607, the memory development information storage area 1
The pointer 1 is set to 3 and the process proceeds to step S608.
In step S608, the min band No. , Max band No. Is set in the memory development information storage area 13, the pointer 1 is advanced, and the process proceeds to step S609. In step S609, the pointer 2 is set at the head of the work area, and the process proceeds to step S610. In step S610, the command No. from the work area. Is taken out, set in the memory development information storage area 13, and the process proceeds to step S611. In step S611, the pointers 1 and 2 are advanced, and the flow advances to step S612. In step S612, the number of data is extracted from the work area, set in the memory development information storage area 13, and the process proceeds to step S613. In step S613, m is set to 1 and step S61
Proceed to 4. In step S614, x from the work area
m and ym are taken out, set in the memory development information storage area 13, and the flow advances to step S615. Step S615
Then, m and n (the number of coordinates) are compared. If m is equal to or greater than n, the process ends. If n is greater than m, the flow advances to step S616 to add 1 to m, and the flow advances to step S617. In step S617, the pointers 1 and 2 are advanced, and the process returns to step S614.
As described above, the straight line drawing command is analyzed, and the memory development information of the straight line drawing is created.

FIGS. 46 to 48 show steps S34 of FIG.
5 shows the processing when the polygon drawing command analysis function is executed. In step S120, the data set in the work area and xmin, ymin, xmax,
ymax is set, and the process proceeds to step S121. In step S121, the drawing range is calculated (straight line and polygon), and the process proceeds to step S122. In step S122, a clip check of the drawing range is performed, and the process proceeds to step S123. In step S123, the drawing range flag set in the drawing range clip check is checked. If the drawing range flag is ERROR, the process ends. If the drawing range flag is not ERROR, the flow advances to step S124 to set color designation information (closed figure), and then to step S125. In step S125, information is set in the path control table 20 used by the output unit 19, and step S12 is performed.
Proceed to 6. In step S126, the min band No. ,
max band No. Is calculated, and the process proceeds to step S127. In step S127, the pointer 1 is set in the memory development information storage area 13, and the process proceeds to step S128. In step S128, the min band No. , Max
Band No. Is set in the memory development information storage area 13, the pointer 1 is advanced, and the process proceeds to step S129. In step S129, the pointer 2 is set at the head of the work area, and the process proceeds to step S130. Step S130
Command No. from the work area. Is taken out and set in the memory development information storage area 13, and the process proceeds to step S13.
Proceed to 1. In step S131, the pointers 1 and 2 are advanced, and the flow advances to step S132. Step S132
Then, the number of data is extracted from the work area, (number of data + 2) is set in the memory development information storage area 13, and the process proceeds to step S133. In step S133, m is set to 1, and the process proceeds to step S134. Step S134
Then, xm and ym are taken out of the work area, set in the memory development information storage area 13, and the process proceeds to step S135. In step S135, m and n (the number of coordinates) are compared. If n is greater than m, the flow advances to step S136 to add 1 to m, and the flow advances to step S137. . In step S137, the pointers 1 and 2 are advanced, and the process returns to step S134. If m is equal to or larger than n, the process proceeds to step S138. Step S138
Then, the pointer 2 is set at the head of the work area, and the process proceeds to step S139. In step S139, the pointer 2
Is set to x1 and the process proceeds to step S140. In step S140, x1 and y1 are taken out of the work area, set in the memory development information storage area 13, and the processing is terminated. As described above, the polygon drawing command is analyzed, and memory development information of the polygon drawing is created.

FIGS. 49 to 51 show steps 600 in FIG.
46 shows details of the process of setting data in the work area and setting xmin, ymin, xmax, and ymax in step 120 of FIG. Step S150
Then, a pointer is set at the head of the work area, and the process proceeds to step S151. In step S151, the command N
o. Is read, set in the work area, the pointer is advanced, and the process proceeds to step S152. In step S152,
The number of data is read, set in the work area and the pointer is advanced, and the process proceeds to step S153. Step S153
Then, 1/2 of the number of data (the number of coordinates of a straight line) is set to a constant n, and the flow advances to step S154. In step S154,
The x coordinate and the y coordinate of the coordinate 1 are read, and step S155 is performed.
Proceed to. In step S155, the x coordinate and the y coordinate of the coordinate 1 are converted into printer coordinates and set to x1 and y1, and the process proceeds to step S156. In step S156, x1 is changed to xmi
n, xmax, and y1 are set to ymin, ymax, and the flow advances to step S157. In step S157, x
1, y1 is set in the work area to advance the pointer, and the flow proceeds to step S158. In step S158, m is set to 1, and the process proceeds to step S159. Step S159
Then, m and n (the number of coordinates) are compared. If m is equal to or greater than n, the process ends. If n is greater than m, the process proceeds to step S160, where 1 is added to m, and the process proceeds to step S161. In step S161, the x and y coordinates of the coordinate m are read, and the flow advances to step S162. In step S162, the x and y coordinates of the coordinate m are converted to printer coordinates and set to xm and ym, and the flow advances to step S163. In step S163, the values of xm and xmin are compared. If xm is equal to or larger than xmin, the process proceeds to step S165. If xmin is larger than xm, the flow advances to step S164 to set the value of xm to xmin, and the flow advances to step S165. Step S165
Then, the values of xm and xmax are compared. If xmax is equal to or larger than xm, the process proceeds to step S167. xm
Is larger than xmax, the flow advances to step S166 to set the value of xm to xmax, and to step S167. In step S167, the values of ym and ymin are compared.
If ym is equal to or greater than ymin, the process proceeds to step S169. If ymin is larger than ym, the flow advances to step S168 to set the value of ym to ymin, and the flow advances to step S169. In step S169, ym and ymax
Compare the values of If ymax is equal to or greater than ym, the process proceeds to step S171. If ym is larger than ymax, the process proceeds to step S170 to set the value of ym to ymax.
And the process proceeds to step S171. Step S17
In step 1, xm and ym are set in the work area to advance the pointer, and the flow returns to step S159. In this way, the setting of data in the work area and xmin, ymin, xmax, ym
ax can be set.

FIGS. 52 to 55 show steps S34 of FIG.
5 shows the processing when the circle drawing command analysis function is executed. In step S175, a pointer is set at the head of the work area, and the flow advances to step S176. In the step S176, the command No. And load
Set the pointer in the work area and advance the pointer.
Proceed to 177. In step S177, the number of data is read, set in the work area and the pointer is advanced, and the flow proceeds to step S178. In step S178, the x and y coordinates of the center are read, and the flow advances to step S179. In step S179, the x and y coordinates of the center are converted to printer coordinates, set to xc and yc, and the flow advances to step S180. In step S180, xc and yc are set in the work area to advance the pointer, and the flow advances to step S181. In step S181, the radius value is read from the command, and the flow advances to step S182. In step S182, the radius value is converted into a pixel (dot) value based on the resolution of the image processing apparatus, set to r, and the process proceeds to step S183. In step S183, r is set in the work area, and the flow advances to step S184. In step S184, a circle drawing range is calculated, and the flow advances to step S185. Step S1
At 85, a clip check of the drawing range is performed, and the flow advances to step S186. In step S186, the drawing range flag set in the drawing range clip check is checked. If the drawing range flag is ERROR, the process ends.
If the drawing range flag is not ERROR, step S18
The process proceeds to step S7, where color designation information is set (closed figure), and the process proceeds to step S188. In step S188, information is set in the path control table 20 used by the output unit 19, and the process proceeds to step S189. In step S189, the min band No. , Max band No. Is calculated, and the process proceeds to step S190. In step S190, the pointer 1 is set in the memory development information storage area 13 and the process proceeds to step S1.
Go to 91. In step S191, the min band N
o. , Max band No. Is set in the memory development information storage area 13 and the pointer 1 is advanced, and step S192 is performed.
Proceed to. In step S192, pointer 2 is set at the head of the work area, and the flow advances to step S193. In step S193, the command No. Is taken out, set in the memory development information storage area 13, and the process proceeds to step S194. In step S194, the pointers 1 and 2 are advanced, and the flow advances to step S195. In step S195, the number of data is extracted from the work area, set in the memory development information storage area 13, and the process proceeds to step S196. In step S196, pointer 1,
The pointer 2 is advanced, and the process proceeds to step S197. In step S197, xc and yc are taken out of the work area, set in the memory development information storage area 13, and set in step S1.
Go to 98. In step S198, the pointers 1 and 2 are advanced, and the flow advances to step S199. Step S19
In step 9, r is taken out of the work area, set in the memory development information storage area 13, and the process is terminated. As described above, the circle drawing command is analyzed and the memory development information of the circle drawing is created.

FIGS. 56 to 59 show steps S34 of FIG.
5 shows the processing when the character drawing command analysis function is executed. In step S210, a pointer is set at the head of the work area, and the process proceeds to step S211. In step S211, the command No. Is read and set in the work area to advance the pointer, and the flow proceeds to step S212. In step S212, the number of data is read, and the process proceeds to step S213. Step S213
To read the x and y coordinates of the drawing position,
Proceed to 214. In step S214, the x- and y-coordinates of the drawing position are converted to printer coordinates, set in xr and yr, and the flow advances to step S215. In step S215, character data is read from the command, converted into an internal code, and the flow advances to step S216. In step S216, (the number of data of the internal code) +2 is set in the work area as the number of data and the pointer is advanced, and the process proceeds to step S217. In step S217, xr and yr are set in the work area to advance the pointer, and the flow advances to step S218. In step S218, the internal code is set in the work area, and the flow advances to step S219. In step S219, the drawing range of the character is calculated, and the process proceeds to step S220.
In step S220, a clip check of the drawing range is performed, and the process proceeds to step S221. In step S221, the drawing range flag set in the drawing range clip check is checked. If the drawing range flag is ERROR, the process ends. If the drawing range flag is not ERROR, the flow advances to step S222 to set color designation information (characters), and then to step S223. In step S223, information is set in the path control table 20 used by the output unit 19, and the process proceeds to step S224. In step S224,
min band No. , Max band No. Is calculated, and the process proceeds to step S225. In step S225, the pointer 1 is set in the memory development information storage area 13, and the process proceeds to step S226. In step S226, min
Band No. , Max band No. Is set in the memory development information storage area 13, the pointer 1 is advanced, and the process proceeds to step S227. In step S227, the pointer 2 is set at the head of the work area, and the process proceeds to step S228. In step S228, the command N
o. Is taken out and set in the memory development information storage area 13, and the process proceeds to step S229. In step S229,
The pointers 1 and 2 are advanced, and the process proceeds to step S230. In step S230, the number of data is extracted from the work area, set in the memory development information storage area 13, and the process proceeds to step S231. In step S231, the pointers 1 and 2 are advanced, and the flow advances to step S232. In step S232, xr and yr are extracted from the work area, set in the memory development information storage area 13, and the flow advances to step S233. In step S233, pointer 1,
The pointer 2 is advanced, and the process proceeds to step S234. In step S234, the internal code is extracted from the work area,
The process is set in the memory development information storage area 13 and the process ends. As described above, the character drawing command is analyzed and the memory development information of the character drawing is created.

FIG. 60 shows in detail the processing for calculating the drawing range in step 601 in FIG. 43 and step 121 in FIG. In step S240, xmi
Step S2 sets n to pxmin and xmax to pxmax.
Go to 41. In step S241, ymin is changed to pymin, y
max is set to pymax, and the process proceeds to step S242. In step S242, α (a constant equal to or greater than 0) is added to Lwidth / 2 and set to β, and the process proceeds to step S243. In step S243, pxmin-β is set to pxmin, and pxmax + β is set to pxmax.
And the process proceeds to step S244. Step S2
At 44, pymin-β is set to pymin, and pymax + β is set to pymax, and the process ends. In this way, the drawing range of a straight line and a polygon can be calculated.

FIG. 61 shows a drawing range of a polygon specified by four points (x1, y1) to (x4, y4). The range is (pxmin, pymin) and (pxmax, pymax)
A rectangular area surrounded by a circle, and is a calculation result when the value of α is set to 0 in the processing of FIG.

FIG. 62 shows in detail the process of calculating the drawing range of the circle in step 184 in FIG. In step S250, xc-r is set to pxmin, xc + r
Is set to pxmax, and the process proceeds to step S251. In step S251, yc-r is set to pymin and yc + r is set to pymax, and the flow advances to step S252. Step S25
In step 2, α (a constant equal to or greater than 0) is added to Lwidth / 2 and set to β, and the flow advances to step S253. Step S253
Then, pxmin-β is set to pxmin, and pxmax + β is set to pxmax, and the process proceeds to step S254. In step S254, py
Set min-β to pymin and pymax + β to pymax, and terminate the processing. Thus, the drawing range of the circle can be calculated.

FIG. 63 shows a drawing range of a circle. The range is (pxmin, pymin) and (pxmax, pymax)
62 is a calculation result when the value of α is set to 0 in the process of FIG.

FIG. 64 shows in detail the process of calculating the character drawing range in step 219 of FIG. 57. In step S260, the character information storage unit 9 (FIG. 1)
The left offset value and the upper offset value are extracted from 3), and the process proceeds to step S261. In step S261, the left offset value is set to α1, and the upper offset value is set to α2.
Proceed to step S262. In step S262, xr +
α1 is set to pxmin, and yr−α2 is set to pymin, and the flow advances to step S263. In step S263, the pattern width and pattern height are extracted from the character information storage unit 9, and the flow advances to step S264. In step S264, the pattern width is set to β
1. The pattern height is set to β2, and the process proceeds to step S265. In step S265, pxmin + β1 is set to pxmax, and pym
in + β2 is set to pymax, and the process ends. Thus, the drawing range of the character can be calculated.

FIG. 65 shows a drawing range of a character. This range is (pxmin, pymin) and (pxmax, pyma
It is a rectangular area surrounded by x).

FIGS. 66 and 67 show steps S60 in FIG.
2, step S122 in FIG. 46, step S1 in FIG.
FIG. 85 shows the details of the clip check process of the drawing range in step S220 of FIG. 85 and FIG. 57.
In step S270, the values of pxmax and cxmin are compared. cx
If min is larger than the value of pxmax, step S274
Then, ERROR is set in the drawing range flag, and the process ends. Otherwise, the process proceeds to step S271. In step S271, the values of pxmin and cxmax are compared. If pxmin is greater than cxmax, step S
The process proceeds to 274, where ERROR is set in the drawing range flag, and the process ends. Otherwise, step S272
Proceed to. In step S272, the values of pymax and cymin are compared. If cymin is greater than the value of pymax, the process proceeds to step S274, where ERROR is set in the drawing range flag, and the process ends. If not, step S27
Proceed to 3. In step S273, the values of pymin and cymax are compared. If pymin is greater than the value of cymax, the process advances to step S274 to set ERROR in the drawing range flag and end the process. If not, step S2
Go to 75. In step S275, the values of pxmin and cxmin are compared. If cxmin is larger than pxmin, the process proceeds to step S276, where the value of cxmin is set to pxmin, and the process proceeds to step S277. Otherwise, the process proceeds to step S277. In step S277, the values of pymin and cymin are compared. If cymin is greater than the value of pymin,
The process proceeds to step S278, sets the value of cymin to pymin, and proceeds to step S279. If not, the process proceeds to step S279. In step S279, pxmax and cxm
Compare the value of ax. If pxmax is greater than the value of cxmax, the process proceeds to step S280, where the value of cxmax is set to pxmax, and the process proceeds to step S281. If not,
Proceed to step S281. In step S281, pymax
And the value of cymax. If pymax is larger than the value of cymax, the process proceeds to step S282, and the value of cymax is changed to pymax.
And the process proceeds to step S283. Otherwise, the process proceeds to step S283. In step S283, OK is set in the drawing range flag, and the process ends. Thus, a common range of the drawing range and the clip region can be obtained.

FIG. 68 shows (pxmin, pymin) and (pxmax, p
(cxmi) for the drawing range of the rectangular area enclosed by (ymax)
This is an example in which a rectangular clip region surrounded by (n, cymin) and (cxmax, cymax) is set.
By the processing of FIGS. 66 and 67, the drawing range of FIG. 68 becomes (cxmi
n, cxmin) and (cxmax, cymax).

FIG. 69 shows in detail the process of setting (linear) color designation information in step S604 of FIG. In step S290, the value of Y of Lymck is set to P_Y
, And the process proceeds to step S291. Step S2
At 91, the value of M of Lymck is set to P_M, and step S
Proceed to 292. In step S292, the value of C of Lymck is set to P
_C, and the process proceeds to step S293. Step S
In 293, the value of Bk of Lymck is set to P_Bk, and the process ends. Thus, the color specification information of the straight line is P_Y, P_M,
Can be set to P_C, P_BK.

FIG. 70 shows in detail the processing of setting the color designation information (closed figure) in step S124 of FIG. 46 and step S187 of FIG. In step S300, the result of multiplication of the values of Fpat and Fpermt is compared with 0. If the value is 0, the process advances to step S301 to set the color designation information (sub-process 1) and end the process. If it is not 0, the process proceeds to step S302 to set the color designation information (sub-process 2) and end the process.

FIG. 71 shows the processing in step S301 of FIG. 70 in detail. In step S310, Fp
Compare the value of at with 0. If not 0, step S
The process advances to 311 to set the value of Y of Fymck to P_Y, and advances to step S312. In step S312, Fymck's M
Is set to P_M, and the process proceeds to step S313. In step S313, the value of C of Fymck is set to P_C,
Proceed to step S314. In step S314, Fymck
Is set to P_Bk, and the process ends. If the value is 0, the process proceeds to step S315, and the value of Fpermt is compared with 0. If the value of Fpermt is 0, the process ends.
If the value of Fpermt is not 0, in step S316,
The value of Y of Lymck is set to P_Y, and the process proceeds to step S317. In step S317, the value of Lymck M is set to P_M, and the flow advances to step S318. Step S318
Then, the value of C of Lymck is set to P_C, and step S31
Go to 9. In step S319, the value of Bk of Lymck is set to P_B
Set to k and end the process. As described above, the color designation information of the closed figure can be set to P_Y, P_M, P_C, and P_BK.

FIG. 72 shows the details of the processing in step S302 in FIG. 70. In step S320, Fy
The value of Y of mck is compared with the value of Y of Lymck. If the value of Y of Fymck is larger than the value of Y of Lymck, step S3
The program proceeds to S21, where the value of Y in Fymck is set to P_Y, and the procedure proceeds to step S323. If not, step S3
In S22, the value of Y of Lymck is set to P_Y, and the process proceeds to S323. In step S323, the value of M of Fymck is compared with the value of M of Lymck. Fymck's M value is Lymck
If the value of M is larger than the value of M, the process proceeds to step S324, and the value of M of Fymck is set to P_M.
Proceed to 6. If not, the flow advances to step S325 to set the value of M of Lymck to P_M, and then to step S32
Proceed to 6. In step S326, the value of C of Fymck and Lymck
Are compared. If the value of C of Fymck is larger than the value of C of Lymck, the process proceeds to step S327, the value of C of Fymck is set to P_C, and the process proceeds to step S329.
Otherwise, the process proceeds to step S328, where Lymck
Is set to P_C, and the process proceeds to step S329. In step S329, the value of Bk of Fymck and the value of B of Lymck
Compare the value of k. If the value of Bk of Fymck is larger than the value of Bk of Lymck, the process proceeds to step S330, and Fymck
Is set to P_Bk, and the process ends. If not, the process proceeds to step S331, where Lymck B
The value of k is set to P_Bk, and the process ends. As described above, the color designation information of the closed figure can be set to P_Y, P_M, P_C, and P_BK.

FIG. 73 shows the details of the setting (character) processing of the color designation information in step S222 of FIG. 57. In step S340, the value of Y of Tymck is set to P_Y
And the process proceeds to step S341. Step S3
At step 41, the value of M of Tymck is set to P_M, and step S
Proceed to 342. In step S342, the value of C of Tymck is set to P
_C, and the process proceeds to step S343. Step S
In 343, the value of Bk of Tymck is set to P_Bk, and the process ends. In this way, the character color designation information is P_Y, P_M,
Can be set to P_C, P_BK.

FIG. 74 shows the minimum band N in step S606 in FIG. 44, step S126 in FIG. 47, step S189 in FIG. 54, and step S224 in FIG.
o. , Max band No. 2 shows the calculation processing of the calculation in detail. In step S350, the band information storage unit 5
From the band height (the height of one band)
Proceed to step S351. In step S351, the band height is set to h, and the flow advances to step S352. In step S352, pymin and pymax are extracted from the drawing range information, and the flow advances to step S353. Step S353
, The quotient of (pymin / h) is changed to the min band No. And the process proceeds to step S354. In step S354,
(Pymax / h) is the quotient of max band No. And the process is terminated. As described above, the min band No. is determined based on the drawing range information. , Max band No. Can be calculated.

FIGS. 75-78 show steps S60 in FIG.
5, step S125 in FIG. 46, step S1 in FIG.
58 shows details of the process of setting information in the path control table used by the output unit in step S223 of FIG. In step S360, information on the head height (print head height) is extracted from the band information storage unit 5, and the flow advances to step S361. Step S361
Then, the head height is set to h, and the process proceeds to step S362. In step S362, pxmi of the drawing range information
The n, pxmax, pymin, and pymax are taken out and step S36
Proceed to 3. In step S363, the quotient of (pymin / h) is assigned to the min pass No. And the process proceeds to step S364. In step S364, the quotient of (pymax / h) is max
Pass No. And the process proceeds to step S365. In step S365, P_Y, P_M, P_C, P
_Bk is extracted, and the process proceeds to step S366. In step S366, a pointer is set at the head of the path control table, and the flow advances to step S367. Step S367
In the min pass No. The pointer is advanced by an amount corresponding to, and the process proceeds to step S368. In step S368, the min pass No. Is set to α, and the flow advances to step S369. In step S369, the value of pxmin is compared with the minimum value indicated by the pointer. If the minimum value is larger than the value of pxmin, the process proceeds to step S370, the value of pxmin is set to the minimum value, and the process proceeds to step S371. Otherwise, the process proceeds to step S371. Step S371
Then, the value of pxmax is compared with the maximum value indicated by the pointer. p
If the value of xmax is larger than the maximum value, step S37
The process proceeds to step S2, where the value of pxmax is set to the maximum value, and the process proceeds to step S373. If not, step S37
Proceed to 3. In step S373, the value of P_Y is compared with 0. If the value of P_Y is not 0, step S374
Then, the Y bit of the drawing information flag is turned ON, and the process proceeds to step S375. If it is 0, step S375
Proceed to. In step S375, the value of P_M is compared with 0. If the value of P_M is not 0, the process proceeds to step S376, turns on the M bit of the drawing information flag, and proceeds to step S377. If the value is 0, the process proceeds to step S377. In step S377, the value of P_C is compared with 0. If the value of P_C is not 0, the process proceeds to step S378, turns on the C bit of the drawing information flag, and proceeds to step S379. If it is 0, the process proceeds to step S379. In step S379, the value of P_Bk is compared with 0. If the value of P_Bk is not 0, the process proceeds to step S380, turns on the Bk bit of the drawing information flag, and proceeds to step S381. If it is 0, step S381
Proceed to. In step S381, the max pass No. Is compared with the value of α. max pass No. Is larger than α, the process proceeds to step S382, 1 is added to α, and the process proceeds to step S383. In step S383, the pointer is advanced by one and the process returns to step S369. If it is not 0, the process ends. As described above, information can be set in the path control table used by the output unit.

FIG. 79 shows an example in which polygons and characters are drawn in the areas of paths 0, 1, and 2. x1 and x2 indicate the minimum value and the maximum value of x of the polygonal drawing area, respectively. x3 and x4 indicate the minimum value and the maximum value of x in the character drawing area, respectively.

FIG. 80 shows the drawing example of FIG.
9 shows a path control table in a case where information is set in a path control table used in the output unit by the processes of 5-78. The value of k is a value set by the initialization of the path control table of FIG.

FIG. 81 shows the color designation command of FIG.
An example of memory development information for color designation, which is created by analyzing based on the flowcharts of 3 to 35, is shown. Here, the command table No. Is different for each color designation memory development information, and is used to identify each command. Here, the content of the data number parameter is 4. Y
Values, M values, C values, and Bk values are Y (Yellow), M (Magenta), C (Cyan), and Bk, which are primary colors of a color material (toner ink).
(Black) density data values, which are always converted to Y, M, C, and Bk density data values at the time of memory development information creation after analysis even if the type of the color specification data value of the color specification command is different. Which indicates that.

FIG. 82 shows each memory development information created by analyzing the line width designation command, the clip area designation command, and the paint definition designation command of FIG. 28 based on the flowcharts of FIGS. 36, 37, and 38, respectively. An example is shown. Here, the command table No. Is different for each piece of memory development information, and is used to identify each command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter.

FIG. 83 shows the straight line drawing command and polygon drawing command of FIG. 29 as shown in FIGS. 43 to 45 and FIGS.
8 shows an example of each piece of memory development information created by analysis based on the flowchart of FIG. Here, the command table No. Is different for each piece of memory development information, and is used to identify each command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter. Since the final parameter of the memory development information for polygon drawing is the starting point (to return to the starting point and close), it is x1, y1 as shown in the figure.

FIG. 84 shows an example of memory development information created by analyzing the circle drawing command and character drawing command of FIG. 30 based on the flowcharts of FIGS. 52 to 55 and 56 to 59, respectively. Here, the command table No. Is different for each piece of memory development information, and is used to identify each command. The content of the number-of-data parameter indicates the number of data following the number-of-data parameter.

FIG. 85 shows that one page is divided into four bands, and the size of each band is divided into four bands. FIGS. 27 to 30 show examples in the case where drawing is performed using a band memory of C and Bk and a part of drawing attribute commands and drawing commands.
The drawing order is circle, polygon, and character. The circle has no internal paint, has an outline, and has an outline color of cyan. The polygon has an internal fill, and the fill color without the outline is magenta. Characters have an internal fill color of yellow. 5 shows an example in which drawing is performed using a unit.

FIGS. 86 and 87 show memory development information used at the time of drawing in FIG. 85. Here, the commands are arranged in the order in which they are analyzed, which is the same as the order in which the commands are received. As shown in FIG. Is 0, max band N
o. Is 3, and analysis is performed for all bands. This is because otherwise, it is necessary to add drawing attribute information to the memory development information of each drawing, so that the data amount of the memory development information increases. Regarding the memory development information of drawing, the minimum band No. Is the min band No. Is the maximum band No. in which the drawing range exists. Is the max band No. Is set to For example, the min band No. of the memory development information of the circle drawing Is 1, max band No. Is 2.

FIG. 88 shows that one page is divided into four bands, and the size of each band is divided into four bands. An example is shown in which a clip area is specified for straight line drawing and drawing is performed using band memories C and Bk. The color of the straight line is red (M100%, Y100%).

FIG. 89 shows memory development information used at the time of drawing in FIG. Here, the commands are arranged in the order in which they are analyzed, which is the same as the order in which the commands are received. If the clip region is not considered, the drawing range of the straight line drawing is a range that extends from band 0 to band 3 by the processing in FIG. Considering the clip area, FIG.
With the processing in FIG. 67, the range is from one band to two bands. Therefore, regarding the memory development information of the straight line drawing, the min band No. Is 1, max band No. Becomes 2.

FIG. 90 shows a command in which a jump address to a function for actually developing a drawing pattern in a memory and a jump address to a function for specifying a drawing attribute (set in an internal variable or the like) are stored. This is an execution jump table 1 (ROM). Command No. A jump address is stored corresponding to (0 to n).

FIG. 91 is a table obtained by replacing all jump addresses to functions for performing pattern development of drawing with respect to the memory in FIG. 90 with jump addresses to skip functions.
OM). As in FIG. (0-n)
The jump address is stored corresponding to.

FIG. 92 is a flowchart describing the processing in step S12 in FIG. 23 in detail. Step S3
In step 90, a drawable range is set in consideration of a clip range (a rectangular area in which a drawable range of figures, characters, and the like is set), and the flow advances to step S391. In step S391,
The head address of each of the virtual page memories Y, M, C, and K is calculated and set, and the process proceeds to step S392. Step S
392, the min band No. of the memory development information. , Ma
x band No. Is read, the pointer is advanced to the next data, and the flow advances to step S393. In step S393, the command No. Is read and the process proceeds to step S394.
In step S394, the min band No. ≤ i (current band No.) ≤ max band No. Check whether the relationship is established. If so, step S3
The program proceeds to 95, in which a pointer is set at the head of the command execution jump table 1 in FIG. 90, and the procedure proceeds to step S397. If not, the flow advances to step S396 to set a pointer at the head of the command execution jump table 2 in FIG. 91, and then advances to step S397. Step S3
97 with the command No. The pointer of the table is advanced by an amount corresponding to, and the process proceeds to step 398. Step S398
Then, the content (jump address) indicated by the pointer is extracted, and the flow advances to step S399. In step S399, the function indicated by the jump address is executed, and the processing ends.

FIG. 93 is a flowchart describing the processing of step S390 in FIG. 92 in detail. Hereinafter, the value of y in the drawing range and the value of the clip area are values on the printer coordinates. In step S400, band height information [the height of one band (the number of dots or the number of scan lines)] is extracted from the band information storage unit 5, and the process proceeds to step S401. In step S401, the value of (the above-described band height) × i (current band No.) is set to the minimum value mi of y in the drawable range.
Set to ny and the process proceeds to step S402. Step S4
At 02, the value of (i + 1) is compared with the value of the number of bands. If the value of the number of bands is larger than the value of (i + 1), the process proceeds to step S403 (the above-described band height) × (i + 1).
The value of -1 is set to the maximum value y of y in the drawable range, and the process proceeds to step S405. If not, the flow advances to step S404 to set the maximum value of y in the effective printing area of the sheet to the maximum value y of y in the drawing range, and then to step S404.
Proceed to 405. In step S405, the minimum value dspymi of y and the maximum value dspymx of y are extracted from the information of the clip area (rectangular area in which a drawable range of figures, characters, etc. is set), and the flow advances to step S406. In step S406,
Compare miny and dspymi. If miny is greater than dspymi, the flow advances to step S407 to set the value of miny to dspymi, and the flow advances to step S408. If not, the process proceeds directly to step S408. Step S40
At 8, compare maxy and dspymx. If dspymx is greater than maxy, the flow advances to step S409 to set the value of maxy to ds
Set to pymx and end the process. Otherwise, the process ends. The dspymi and dspymx set in this flow are used for the actual drawable range of figures and characters used in band memory development.

FIG. 94 shows the setting of printer coordinates when the band height is 512 dots. In this case, as shown in the figure, the miny value of band 0 is 0, and the maxy value is 51.
The miny value of the 1 and 1 bands is 512, and the maxy value is 1023.

FIG. 95 shows the band No. Dspymi <miny, ma
An example is shown where a clip area where xy <dspymx is set. In this case, the band No. The actual drawable range of figures, characters, and the like used when expanding the band memory corresponding to i is the shaded area in the figure according to the processing in the figure. Here, dspxmi and dspxmx indicate the minimum value of x and the maximum value of x in the clip region, respectively.

FIG. 96 is a flowchart describing the processing of step S391 in FIG. 92 in detail. Step S
At 410, the information X_bandptr (X = y, m, X) of the head address of each band memory of Y, M, C, Bk is stored from the band information storage unit 5.
c, k), and the process proceeds to step S411. Step S
In step 411, information on the capacity (byte) of the band memory is extracted from the band information storage unit 5, and the flow advances to step S412. In step S412, X_topadr (X = y, m, c, k) −
By calculating (band memory capacity) × i (current band No.), the start address of each of the virtual page memories of Y, M, C, and Bk is obtained, and the process is terminated.

FIG. 97 shows the fifth band (band N) in FIG.
o. Indicates the start address of each virtual page memory of Y, M, C, and Bk when rendering is drawn in 4). The above address is obtained by the processing in FIG.

FIG. 98 shows a process for executing the line width designation function in step S399 in FIG. In step S420, the line width value is read from the memory development information for specifying the line width, and the flow advances to step S421. In step S421, the above-described line width value is set as a variable lwidth as line width information to be used when developing a drawing pattern into a memory when a drawing function is executed, and the process ends.

FIG. 99 shows the processing for executing the line color designation function in step S399 in FIG. In step S430, the Y, M, C, and Bk values of the line color are read from the memory development information for specifying the line color, and the process proceeds to step S430.
Proceed to 431. In step S431, the above-described Y, M, C, and Bk values are set as variables “lymck” as line color information used when the drawing pattern is expanded into the memory when the drawing function is executed, and the process ends.

FIG. 100 shows a process for executing the fill color designation function in step S399 in FIG. In step S430, Y, M, C, and B of the fill color are obtained from the memory development information for specifying the fill color.
The k value is read, and the process proceeds to step S431. Step S
At 431, Y, M, C, and B are used as fill color information used when developing a drawing pattern into a memory when a drawing function is executed.
The k value is set in the variable fymck, and the process ends.

FIG. 101 shows the processing when the character color designation function is executed in step S399 in FIG. In step S440, the Y, M, C, and Bk values of the character color are read from the memory development information for specifying the character color, and the flow advances to step S441. In step S441, the Y, M, C, and Bk values are set in variables tymck as character color information used when developing a character pattern into a memory when the character print function is executed, and the process ends.

FIG. 102 shows a process for executing the clip area designating function in step S399 in FIG. In step S450, the xmin, ymin, xma
The values of x and ymax are read, and the process proceeds to step S451. In step S451, the variables dspxm and xmin, ymin, xmax, and ymax are used as clip area information to be used when the drawing pattern is expanded into the memory when the drawing function is executed.
i, dspymi, dspxmx, and dspymx are set, and the flow advances to step S452. In step S452, the values of miny and maxy (on the printer coordinates) of the band drawing range for the band number i are extracted from the band information storage unit 5, and the flow advances to step S453. In step S453, miny and dspymi are compared.
If miny is greater than dspymi, the flow advances to step S454 to set the value of miny to dspymi, and to step S455.
Proceed to. Otherwise, the process proceeds to step S455. In step S455, maxy and dspymx are compared. ds
If pymx is larger than maxy, the flow advances to step S456 to set the value of maxy to dspymx, and ends the processing. Otherwise, the process ends.

FIG. 103 shows a process for executing the fill definition designation function in step S399 in FIG. In step S460, the paint pattern number is read from the memory development information of the paint definition specification, and the flow advances to step S461. Step S461
In step S4, the paint pattern number is set as a variable fpat as paint pattern information used when developing a drawing pattern into a memory when a drawing function is executed.
Go to 62. In step S462, a flag value indicating the presence or absence of an outline is read from the memory development information for specifying the fill definition, and the flow advances to step S463. In step S463, the above-mentioned flag value of the presence or absence of the contour line is set as a variable fpermt as the information of the presence or absence of the contour line used when the drawing pattern is expanded into the memory at the time of executing the drawing function, and the process ends.

FIGS. 104 and 105 show the processing when the function of drawing a straight line is executed in step S399 in FIG. In step S470, the number of data is read from the memory development information of the straight line drawing, and in step S4
Go to 71. In step S471, 1 / (the number of data)
2 (the number of coordinates of a straight line) is set to a constant n, and step S
Proceed to 472. In step S472, the value of the line color information "lymck" is extracted, and the flow advances to step S473. Step S4
At 73, information of the clip area dspxmi, dspxmx, dspymi, dsp
The value of ymx is extracted, and the flow advances to step S474. In step S474, each virtual page memory start address of Y, M, C, and Bk is extracted, and the flow advances to step S475. In step S475, 1 is set to a constant m, and step S475 is performed.
Proceed to 476. In step S476, a point (xm, ym) on the printer coordinates is read from the memory development information of the straight line drawing, and the flow advances to step S477. In step S477, a point (xm +
1, ym + 1) is read, and the flow advances to step S478. In step S478, two points (xm, ym) on the printer coordinates,
The line pattern between (xm + 1, ym + 1) is converted to line color information lym
Based on ck, information on the clip area, and the starting address of each virtual page memory of Y, M, C, and Bk, the data is developed in each of the band memories of Y, M, C, and Bk, and the flow advances to step S479. In step S479, the value of n is compared with the value of (m + 1). If n is greater than (m + 1), the process proceeds to step 480, where m is incremented by one and the process returns to step 477.
If not, the process ends. As described above, it is possible to develop a straight line drawing pattern in the band memory based on the memory development information for line drawing, line color designation, and line width designation.

FIGS. 106 to 108 show steps S in FIG.
In step 399, processing for executing a polygon drawing function is shown. In step S481, the number of data is read from the memory development information for polygon drawing, and the process proceeds to step S481.
Proceed to 482. In step S482, the number of data
1/2 (the number of coordinate points of the polygon) is set to a constant n, and the flow advances to step S483. In step S483, 1 is set to a constant m, and the flow advances to step S484. Step S484
Then, a point (xm, ym) on the printer coordinates is read from the memory development information of the polygon drawing, and the flow advances to step S485.
In step S485, the values of xm and ym are set in the storage area in the system work, and the flow advances to step S486. In step S486, the values of n and m are compared. If n is larger than m, the flow advances to step S487 to increment m by one and returns to step S484. Otherwise, the process proceeds to step S488. Step S4
At 88, the clip area information dspxmi, dspxmx, dspymi, dsp
The value of ymx is extracted, and the flow advances to step S489. In step S489, the respective virtual page memory start addresses of Y, M, C, and Bk are extracted, and the flow advances to step S490. In step S490, the value of the fill pattern information fpat is
Compare with 0. If the value is 0, the process proceeds to step S493.
If it is not 0, the flow advances to step S491 to extract the value of the paint color information fymck, and the flow advances to step S492. In step S492, the internal filling pattern of the polygon is set in the area surrounded by the polygon outline points (x1, y1),..., (Xm, ym) set in the storage area in the system work in step S485. Based on the fill pattern information fpat, the fill color information fymck, the clip area information, and the start addresses of the virtual page memories Y, M, C, and Bk, the image data is developed in the band memories Y, M, C, and Bk. Proceed to S493. In step S493, the value of the contour line presence / absence information fpermt is compared with 0. If it is 0, the process ends. If not 0, step S494
, And sets 1 to a constant m, and then proceeds to step S495. In step S495, the value of the line color information "lymck" is extracted, and the flow advances to step S496. In step S496, the coordinates Xm and Ym of the polygon outline point are extracted from the storage area in the system work, and the flow advances to step S497. In step S497, the coordinates Xm + 1 and Ym + 1 of the polygonal outline point are extracted from the storage area in the system work, and the process proceeds to step S497.
Proceed to 498. In step S498, a straight line pattern between two points (xm, ym) and (xm + 1, ym + 1) on the printer coordinates is represented by line color information lymck, clip area information, Y,
Based on the virtual page memory start address of each of M, C, and Bk, the data is expanded to each of the band memories of Y, M, C, and Bk, and the process proceeds to step S499. In step S499, n and (m + 1)
Compare the values of If n is greater than (m + 1),
Proceeding to step S500, m is incremented by one and the process returns to step S497. If not, the process ends. As described above, it is possible to develop a polygon drawing pattern in the band memory based on the memory development information of polygon drawing / painting definition designation / line color designation / painting color designation.

FIGS. 109 and 110 show the processing when the function of drawing a circle is executed in step S399 in FIG. In step S501, the number of data is read from the memory development information of the circle drawing, and the process proceeds to step S502.
Proceed to. In step S502, xc and yc, which are the x and y coordinates of the center, are read from the memory development information of the circle drawing, and the flow advances to step S503. In step S503, the radius r is read from the memory development information of the circle drawing, and the process proceeds to step S504.
Proceed to. In step S504, the clip area information dspx
Extract the values of mi, dspxmx, dspymi, dspymx and step S
Proceed to 505. In step S505, Y, M, C, Bk
Of each virtual page memory, and proceeds to step S506. In step S506, the value of the paint pattern information fpat is compared with 0. If it is 0, the process proceeds to step S509. If not 0, step S5
In step 07, the value of the fill color information fymck is extracted, and the flow advances to step S508. In step S508, the internal fill pattern of the circle is determined based on xc, yc, radius r, fill pattern information fpat, fill color information fymck, clip area information, and the start address of each virtual page memory of Y, M, C, and Bk. Are developed in the Y, M, C, and Bk band memories, and the flow advances to step S509. Step S50
In step 9, the value of the contour presence / absence information fpermt is compared with 0. If it is 0, the process ends. If it is not 0, the flow advances to step S510 to extract the value of the line color information lymck, and the flow advances to step S511. In step S511, the outline pattern of the circle is determined based on xc, yc, radius r, line color information lymck, clip area information, and Y, M, C, and Bk virtual page memory start addresses. , C, and Bk, and the process ends. As described above, it is possible to develop the drawing pattern of the circle in the band memory based on the memory development information of the circle drawing / painting definition designation / line color designation / painting color designation.

FIGS. 111 and 112 show steps S in FIG.
In step 399, a process for executing a character drawing function is shown. In step S520, the number of data is read from the memory development information of the character drawing, and the process proceeds to step S52.
Proceed to 1. In step S521, the x and y coordinates of the drawing position and xr and yr are read from the memory development information for character drawing, and the flow advances to step S522. In step S522, the internal code of the character is read from the character development memory development information, and the flow advances to step S523. In step S523, the values of the clip region information dspxmi, dspxmx, dspymi, and dspymx are extracted, and the flow advances to step S524. In step S524,
The start addresses of the respective virtual page memories of Y, M, C, and Bk are extracted, and the flow advances to step S525. Step S525
Then, the value of the character color information tymck is extracted, and step S52 is performed.
Proceed to 6. In step S526, the character pattern is changed to xr,
Based on yr, internal code, character color information tymck, clip area information, and the start address of each virtual page memory of Y, M, C, Bk, it is developed in each band memory of Y, M, C, Bk, and the processing is performed. finish. As described above, the character pattern can be developed in the band memory based on the memory development information for character drawing and character color designation.

FIG. 112 shows a process for executing the skipping function in step S399 in FIG. In step S530, the number of data is read from the memory development information, and the flow advances to step S531. In step S531, the number of data is set to a constant n, and the flow advances to step S532. In step S532, 0 is set to a constant j, and the flow advances to step S533. Step S533
Then, a pointer is set to the next data of the number-of-data parameter, and the flow advances to step S534. Step S534
Then, the data pointed to by the pointer is read, and step S5
Proceed to 35. In step S535, the constant j is incremented by one, and the flow advances to step S536. Step S53
In step 6, the pointer is advanced to the next data, and the
Proceed to 7. In step S537, the constant j is compared with the number n of data. If they are not equal, the process returns to step S534. If they are equal, the process ends. Thus, it is possible to skip the memory development information of the drawing.

FIGS. 113 to 115 show steps S in FIG.
15 shows a process for color printing. In step S540, the band information storage unit 5
The number of segments (the number of paths) per band is extracted, and the flow advances to step S541. In step S541, the number of segments per band is set to a constant α, and the flow advances to step S542. In step S542, a pointer is set at the head of the path control table, and the flow advances to step S543. In step S543, 1 is set to the constant β, and the flow advances to step S544. In step S544, the value of the drawing memory information flag indicated by the pointer is compared with 0. If it is equal to 0, the process proceeds to step S556. If it is not equal to 0, the process proceeds to step S545. Step S54
At 5, it is compared whether the Bk bit of the drawing memory information flag is ON. If it is not ON, the process proceeds to step S547. If ON, the flow advances to step S546 to retrieve the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the Bk band memory to the output buffer, and the flow advances to step S547. In step S547, it is compared whether the C bit of the drawing memory information flag is ON.
If not, the process proceeds to step S549. If ON, the flow advances to step S548 to take out the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the band memory of C to the output buffer, and to step S5
Go to 49. In step S549, it is compared whether the M bit of the drawing memory information flag is ON. If it is not ON, the process proceeds to step S551. If ON, step S
Proceeding to 550, the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the band memory of M are taken out to the output buffer, and the flow proceeds to step S551. In step S551, it is determined whether the Y bit of the drawing memory information flag is ON. If not ON, step S
Proceed to 553. If it is ON, the flow advances to step S552 to take out the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the Y band memory to the output buffer, and then flow to step S553. Step S55
In 3, the print head is horizontally moved to the position of the minimum value indicated by the pointer, and the flow advances to step S554. Step S554
Then, the contents of the output buffer are recorded on the paper in accordance with the horizontal movement of the print head, the print head is horizontally moved to the position of the maximum value indicated by the pointer, and the flow advances to step S555. In step S555, the print head is horizontally moved to the left end, and the flow advances to step S556. In step S556, the print head is vertically moved down by the height of the segment (pass), and the flow advances to step S557. In step S557, the values of α and β are compared. If the values are equal, the process ends. If the values are not equal, the process advances to step S558 to advance the pointer by one and advances to step S559. Step S55
In step 9, 1 is added to the value of β, and the process ends.

FIG. 116 is a band height information table storing band heights and development memory information (memory capacity) for one color material corresponding thereto. FIG. 117 is a flowchart showing the steps from changing the band height information to changing and setting the Y, M, C, and K development memories based on the information on the capacity of the added RAM. In step S101, information on the memory capacity of the additional RAM is extracted, set to a constant a, and the flow advances to step S102. In step S102, a reference value of the memory capacity (memory capacity serving as a reference for changing the band height) is set to b, and the process proceeds to step S103. In step S103, the value of a is divided (cut off) by the value of b,
The value is set to a constant i and the process proceeds to step S104. In step S104, a pointer is set at the head of the band height information table in FIG. 116, and the flow advances to step S105. In step S105, the pointer is advanced by the number i, and
Proceed to 106. In step S106, the information of the band height is extracted from the content pointed to by the pointer, and step S10
In step S107, the process proceeds to step S107, and the extracted band height information is set to the currently used band height information, and the process proceeds to step S108. In step S108, the information of the development memory is extracted from the contents indicated by the pointer, and the flow advances to step S109. In step S109, based on the extracted development memory information, development memories for Y, M, C, and K sheets are secured and set in the RAM, and the process is terminated.
As described above, depending on the capacity of the added memory,
The height for the band can be changed, and the development memory for the band can be changed.

The processing in FIG. 117 can be performed by the processing as shown in FIG. 118. In step S201, information on the memory capacity of the additional RAM is extracted and set to a constant a, and the flow advances to step S202. Step S202
Then, a constant b and a constant a, which are predetermined reference values of the memory capacity (memory capacity serving as a reference for changing the band height), are compared. Here, if b is larger than a, the process ends. Therefore, the band height and the development memory are not changed.
If a is equal to or greater than b, the process proceeds to step S203. In step S203, a constant c, which is a predetermined reference value of the memory capacity (a memory capacity serving as a reference for changing the band height, here, a value larger than b), is compared with a constant a. Here, if c is larger than a, the process proceeds to step S204. In step S204, the constant d
(The value of the band height information predetermined with respect to the reference value b of the memory capacity) is set to the information of the band height currently used, and the process proceeds to step S205. Step S20
In step 5, development memories for four Y, M, C, and K images corresponding to the band height information d are secured and set in the RAM, and the process is terminated. If a is equal to or greater than c in step S203, the process proceeds to step S206. In step S206, a constant e (a value of band height information predetermined with respect to the reference value c of the memory capacity) is set to information on the currently used band height, and the flow advances to step S207. In step S207, development memories for four Y, M, C, and K images corresponding to the band height information e are secured in the RAM.
Set and end the process. As described above, the height for one band can be changed according to the capacity of the added memory, and the expanded memory for the band can be changed.

FIGS. 119 to 121 show steps S in FIG.
17 illustrates a process of initializing a replaceable band memory instead of the process of FIG. In step S560,
The number of segments (the number of paths) per band is extracted from the band information storage unit 5, and the flow advances to step S561. In step S561, the number of segments per band is set to a constant α, and the flow advances to step S562. Step S
In 562, a pointer is set at the head of the path control table, and the flow advances to step S563. In step S563, 1 is set to the constant β, and the flow advances to step S564. In step S564, 0 is set in flg (4 bits), and the flow advances to step S565. In step S565, an OR operation is performed on the drawing memory information flag pointed to by the pointer and the contents of flg, and the result is set in flg.
Proceed to 566. In step S566, the values of α and β are compared. If the values are not equal, the process advances to step S567 to advance the pointer by one and advances to step S568. In step S568, 1 is added to the value of β, and step S56
Return to 5. If the values are equal, the process proceeds to step S569. In step S569, it is compared whether the Bk bit of flg is equal to 0. If equal, step S57
Proceed to 1. If not equal, the flow advances to step S570 to clear the Bk band memory, and then to step S571.
Proceed to. In step S571, it is compared whether the C bit of flg is equal to 0. If equal, step S5
Go to 73. If not equal, the flow advances to step S572 to clear the band memory of C, and then to step S573.
Proceed to. In step S573, whether or not the M bit of flg is equal to 0 is compared. If equal, step S5
Go to 75. If not equal, the flow advances to step S574 to clear the band memory of M and then to step S575
Proceed to. In step S575, it is compared whether the Y bit of flg is equal to 0. If they are equal, the process ends. If not equal, the process proceeds to step S576 where Y
Is cleared and the process is terminated.

FIGS. 122 to 125 show processing which can be replaced in place of the color recording processing shown in FIGS. 113 to 115. In step S620, the band information storage unit 5
, The number of segments (the number of passes) per band is extracted, and the flow advances to step S621. In step S621,
The number of segments per band is set to a constant α, and the flow advances to step S622. In step S622, a pointer is set at the head of the path control table, and in step S62
Proceed to 3. In step S623, 1 is set to the constant β, and the flow advances to step S624. In step S624, the value of the drawing memory information flag indicated by the pointer is compared with 0.
If it is equal to 0, the process proceeds to step S641. If it is not equal to 0, the process proceeds to step S625. In step S625, the Bk bit of the drawing memory information flag is turned on.
To compare. If not ON, step S62
Proceed to 7. If ON, the process proceeds to step S626, where B
Of the k band memories, the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer are taken out to the output buffer, and the flow advances to step S627. Step S627
Then, whether the C bit of the drawing memory information flag is ON is compared. If not ON, the process proceeds to step S629.
If it is ON, the flow advances to step S628 to retrieve the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the band memory of C to the output buffer, and then to step S629. In step S629, it is compared whether the M bit of the drawing memory information flag is ON. If not ON, the process proceeds to step S631. If it is ON, the flow advances to step S630 to take out the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the band memory of M to the output buffer, and then to step S6311.
Proceed to. In step S631, it is determined whether the Y bit of the drawing memory information flag is ON. If not ON
Proceed to step S633. If ON, step S63
In step S633, the memory contents of the current segment from the minimum value to the maximum value indicated by the pointer in the band memory of Y are taken out to the output buffer, and the flow advances to step S633. In step S633, the minimum value and the maximum value indicated by the pointer are set in xmin and xmax, respectively, and the flow advances to step S634. In step S634, the pointer is advanced to the segment immediately below the segment to which the pointer is currently pointing, and step S63 is performed.
Go to 5. In step S635, the value of the minimum value indicated by the pointer is compared with the value of xmax. Here, the minimum value is xm
If it is larger than ax, the flow advances to step S636 to move the print head horizontally to the position of xmin, and then to step S637.
Proceed to. In step S637, the contents of the output buffer are recorded on paper in accordance with the horizontal movement of the print head, the print head is horizontally moved to the position of xmax, and the flow advances to step S641. If the minimum value is equal to or smaller than the value of xmax, the process advances to step S638 to set the print head to xmin.
And moves to step S639. In step S639, the contents of the output buffer are recorded on the paper in accordance with the horizontal movement of the print head, the print head is horizontally moved to the position of xmax, and the flow advances to step S640. move on.
In step S641, the print head is segmented (passed).
And moves to the step S642. In step S642, the values of α and β are compared. If the values are equal, the process ends. If the values are not equal, the flow advances to step S643 to add 1 to the value of β, and then to step S643.
Return to 624.

In this image processing apparatus, a mode in which color recording is performed using a set of band memories of Y, M, C, and Bk in accordance with an instruction from the host computer 1 (FIG. 13) or the operation panel 22 (FIG. 13). , M, C, and Bk, it is possible to perform color recording processing by selecting one of the modes for performing color recording using two sets of band memories.

FIG. 126 is a flowchart showing processing for selecting the above-mentioned mode and performing color recording processing in accordance with an instruction on the operation panel 22 (FIG. 13). Step S6
At 50, the recording control mode of the operation panel 22 (FIG. 13) is selected, and the flow advances to step S651. Step S651
Then, the selected recording control mode is checked. Y, M,
If the control mode uses two sets of C and Bk band memories, the process proceeds to step S652 to select a recording control mode using two sets of Y, M, C, and Bk band memories, and proceeds to step S653 to proceed to Y, M, and B. C, Bk band memory 2
The color recording process is performed using the set, and the process ends. Y,
If the control mode uses one set of band memories of M, C, and Bk, the process proceeds to step S654, selects a recording control mode that uses one set of band memories of Y, M, C, and Bk, and proceeds to step S655. The color recording process is performed using one set of the band memories M, C, and Bk, and the process ends. As described above, from the operation panel, the mode for performing color recording using one set of the band memories of Y, M, C, and Bk,
It is possible to perform color recording processing by selecting one of the modes for performing color recording using two sets of C and Bk band memories.

FIG. 127 shows the operation panel 22 of FIG. As shown in the figure, the switch is composed of an LCD display unit and switches, and the rightmost switch is used to select the above-described recording control mode.

FIG. 128 shows an RA used for performing recording control using one set of the above-described Y, M, C, and Bk band memories.
4 shows an example of a memory map of an M area. Y, M,
FIG. 19 is an example of a memory map of a RAM area used when performing recording control using two sets of C and Bk band memories.
It can be seen that the available free space in the character cache memory and the like is larger than that of

FIG. 129 is a flowchart showing a process for selecting a print control mode by analyzing a print control command and performing a color print process. Step S660
Then, the recording control command is read and the process proceeds to step S661. In step S661, the read recording control command is analyzed by the command analysis unit 3, and the flow advances to step S662. In step S662, the selected recording control mode is checked. If it is a control mode using two sets of band memories of Y, M, C, and Bk, the process proceeds to step S663 and proceeds to step S663.
A recording control mode using two sets of band memories of M, C, and Bk is selected, and the flow advances to step S664 to proceed to Y, M, C, and B.
Color recording processing is performed using two sets of k band memories, and the processing is terminated. If the control mode uses one set of Y, M, C, and Bk band memories, the flow advances to step S665 to select a recording control mode that uses one set of Y, M, C, and Bk band memories, and advances to step S666. Y, M,
The color recording process is performed using one set of the band memories C and Bk, and the process ends. As described above, the mode in which the print control command is analyzed to perform color printing using one set of Y, M, C, and Bk band memories, and the color printing is performed using two sets of Y, M, C, and Bk band memories. The color printing process can be performed by selecting one of the modes for performing the color printing.

FIG. 127 shows an example of the recording control command shown in FIG. 129. As shown in the figure, the recording control command is a command No. for identifying the command. And a recording control mode selection parameter. When the value of the recording control mode selection parameter is 0, Y, M,
This indicates a mode in which color recording control is performed using one set of band memories of C and Bk. When the value is 1, Y, M, and
This indicates a mode in which color printing control is performed using two sets of band memories C and Bk.

FIG. 131 is a flowchart showing processing for selecting a print control mode based on the amount of free space in the RAM area and performing color print processing. Step S
At 670, the amount of free space in the RAM area and the constant M1
(A certain size). If the size of the free space in the RAM area is equal to or larger than the constant M1, the flow advances to step S671 to select a recording control mode using two sets of band memories of Y, M, C, and Bk, and then to step S67.
In step 2, the color recording process is performed using the two sets of Y, M, C, and Bk band memories, and the process ends. If the constant M1 is larger than the amount of free space in the RAM area, the flow advances to step S673 to select a recording control mode using a set of Y, M, C, and Bk band memories, and then to step S67.
The process proceeds to step S4, where color recording processing is performed using one set of band memories of Y, M, C, and Bk, and the processing ends. As described above, according to the size of the free space in the RAM area, Y, M,
Performing color recording processing by selecting one of a mode in which color recording is performed using one set of C and Bk band memories and a mode in which color recording is performed using two sets of Y, M, C, and Bk band memories Is possible.

As described above, according to the present invention,
In an image processing apparatus for controlling print processing of image data in which print data described in a page description language is expanded in band units, the print data is analyzed and the storage means is analyzed.
Memory exhibition, which is information for expanding to the band memory
The drawing position where the drawing target of the open information is drawn is obtained in a printer coordinate system, and when drawing the drawing target in the band memory, a reference to the band memory is obtained from an address in the storage unit of the band memory. Virtual pages
The start address in the storage means is obtained and updated as the start address of the printer coordinate system of the memory , and the updated start address of the printer coordinate system and the obtained drawing position of the drawing target are updated. By drawing and drawing the drawing target in the band memory, the reference address at the time of drawing the print data described in the page description language to the band memory having no page memory can be recognized in the printer coordinate system. Therefore, it is possible to obtain an effect that the drawing processing of the drawing target is reliably performed and the processing time for the printing processing is shortened.

[Brief description of the drawings]

FIG. 1 is an exemplary diagram of a user coordinate system.

FIG. 2 is an exemplary view of a printer coordinate system.

FIG. 3 is a view showing an example of a memory map of a RAM area inside a color image processing apparatus when each of Y, M, C, and Bk has a memory corresponding to the size of an effective print area of a sheet;

FIG. 4 is a view showing an example of a line color designation command among drawing attribute commands;

FIG. 5 is a view showing an example of a circle drawing command among drawing commands;

FIG. 6 is a view showing an example of memory development information for specifying a line color in the memory development information of the drawing attribute function;

FIG. 7 is a view showing an example of memory development information of circle drawing in memory development information of a drawing function;

FIG. 8 is an illustration of a circle drawing on a user coordinate system.

9 is an exemplary diagram of a circle drawing command issued when setting the circle drawing of FIG. 8;

FIG. 10 is a view showing an example of conversion of the circle drawing of FIG.

FIG. 11 is a view showing an example of memory development information of the circle drawing of FIGS. 8 and 10;

FIG. 12 shows the outline of the circle in FIG. 8 as yellow (color material Yellow100).
%) Example diagram of line color command specified when drawing with (%)

FIG. 13 is a block diagram illustrating a circuit configuration of an image processing apparatus according to an embodiment of the present invention.

FIG. 14 is a diagram showing the vicinity of a head of an image processing apparatus of an ink jet system in detail.

FIG. 15 is a diagram showing the head unit 101 of FIG. 14 in detail.

FIG. 16 is an exemplary view of a band structure.

FIG. 17 is a view showing an example in which an effective print area of a sheet is divided into eight bands.

FIG. 18 is a view showing an example of a memory map of a RAM area in a case where a development memory for one band is provided for each color material.

FIG. 19 is a view showing an example of a memory map of a RAM area in a case where two development memories for one band are provided for each color material.

FIG. 20 is a view showing an example of an attribute information storage area for storing drawing attribute information used when developing data in a memory;

FIG. 21 is a view showing an example of a path control table.

FIG. 22 is a flowchart when color recording is performed using only one band of memory for each color material.

FIG. 23 is a flowchart when color recording is performed using only one band of memory for each color material.

FIG. 24 is a flowchart when color recording is performed using only one band of memory for each color material.

FIG. 25 is a flowchart when a path control table is initialized in step S1 of FIG. 22;

26 shows the contents of a path control table initialized by the flowchart of FIG. 25.

FIG. 27 is a view showing an example of a color designation command among drawing attribute designation commands;

FIG. 28 is an exemplary diagram of a line width designation command, a clip area designation command, and a paint definition designation command;

FIG. 29 is an exemplary diagram of a straight line drawing command and a polygon drawing command.

FIG. 30 shows an example of a circle drawing command and a character printing command.

FIG. 31 is a diagram showing an example of a command analysis jump table.

FIG. 32 is a flowchart showing details of a command data analysis process;

FIG. 33 is a flowchart showing in detail a process of executing a color designation command analysis function;

FIG. 34 is a flowchart showing in detail a process of executing a color designation command analysis function.

FIG. 35 is a flowchart showing in detail a process of executing a color designation command analysis function.

FIG. 36 is a flowchart showing in detail a process of executing a line width designation command analysis function;

FIG. 37 is a flowchart showing in detail a process of executing a clip area designation command analysis function.

FIG. 38 is a flowchart showing in detail a process of executing a fill definition specification command analysis function.

FIG. , Max band No. That shows in detail the process of setting in the memory development information area

FIG. 40 is an exemplary diagram of a color reproduction process.

FIG. 41 is an exemplary diagram of a color conversion process.

FIG. 42 is an exemplary diagram of a color conversion process;

FIG. 43 is a diagram showing processing when executing a straight line drawing command analysis function;

FIG. 44 is a diagram showing processing when a straight line drawing command analysis function is executed.

FIG. 45 is a diagram showing processing when a straight line drawing command analysis function is executed.

FIG. 46 is a diagram showing processing when a polygon drawing command analysis function is executed.

FIG. 47 is a diagram showing processing when a polygon drawing command analysis function is executed.

FIG. 48 is a diagram showing processing when executing a polygon drawing command analysis function.

FIG. 49 is a diagram showing processing for setting data in a work area.

FIG. 50 is a diagram showing processing for setting data in a work area.

FIG. 51 is a diagram showing processing for setting data in a work area;

FIG. 52 is a diagram showing processing when executing a circle drawing command analysis function;

FIG. 53 is a view showing processing when executing a circle drawing command analysis function;

FIG. 54 is a view showing processing when executing a circle drawing command analysis function;

FIG. 55 is a view showing processing when executing a circle drawing command analysis function;

FIG. 56 is a view showing processing when executing a character drawing command analysis function;

FIG. 57 is a view showing processing when executing a character drawing command analysis function;

FIG. 58 is a diagram showing processing when executing a character drawing command analysis function;

FIG. 59 is a diagram showing processing when a character drawing command analysis function is executed.

FIG. 60 is a diagram showing processing for calculating a drawing range.

FIG. 61 is a diagram showing a drawing range of a polygon.

FIG. 62 is a view showing processing for calculating a drawing range of a circle;

FIG. 63 is a diagram showing a drawing range of a circle;

FIG. 64 is a diagram showing processing for calculating a character drawing range.

FIG. 65 is a view showing a drawing range of a character;

FIG. 66 is a view showing a clip check process of a drawing range.

FIG. 67 is a view showing a clip check process of a drawing range;

FIG. 68 is an exemplary diagram when a clip area is set for a drawing range;

FIG. 69 is a view showing processing of setting (straight line) of color designation information.

FIG. 70 is a view showing processing for setting (closed figure) of color designation information.

FIG. 71 is a view showing processing in step S301 of FIG. 70;

FIG. 72 is a view showing processing in step S302 in FIG. 70;

FIG. 73 is a view showing processing of setting (character) of color designation information;

FIG. 74: Min band No. , Max band No. Diagram showing the calculation process of

FIG. 75 is a view showing processing for setting information in a path control table used by the output unit;

FIG. 76 is a view showing processing for setting information in a path control table used by the output unit;

FIG. 77 is a diagram showing a process of setting information in a path control table used in the output unit.

FIG. 78 is a view showing a process of setting information in a path control table used in the output unit.

FIG. 79 is a view showing an example when polygons and characters are drawn in the areas of paths 0, 1, and 2;

FIG. 80 is an exemplary diagram of a path control table.

FIG. 81 is a view showing an example of memory development information for specifying a color;

FIG. 82 is a view showing an example of each memory development information;

FIG. 83 is a view showing an example of each memory development information;

FIG. 84 is a view showing an example of each memory development information.

FIG. 85 is an exemplary diagram in a case where drawing is performed using a band memory for each color material and a drawing attribute command / drawing command.

FIG. 86 is a view showing an example of memory development information;

FIG. 87 is a view showing an example of memory development information;

FIG. 88 is an exemplary diagram in which a drawing is performed by setting a clip area designation for a straight line drawing

FIG. 89 is a view showing an example of memory development information;

FIG. 90 is a view showing a command execution jump table 1;

FIG. 91 is a view showing a command execution jump table 2;

FIG. 92 is a flowchart describing the processing of step S12 in FIG. 23 in detail;

FIG. 93 is a flowchart describing the processing of step S390 in FIG. 92 in detail;

FIG. 94 is an exemplary diagram of setting printer coordinates when the band height is set to 512 dots.

FIG. 95 is a view showing an example of setting of a clip area;

FIG. 96 is a flowchart describing the processing of step S391 in FIG. 92 in detail;

FIG. 97 is a diagram showing the start address of each virtual page memory for each color material

FIG. 98 is a view showing processing when executing a line width designation function;

FIG. 99 is a diagram showing processing when a line color designation function is executed.

FIG. 100 is a view showing processing when a fill color designation function is executed;

FIG. 101 is a view showing processing when a character color designation function is executed;

FIG. 102 is a view showing processing when a clip area designation function is executed;

FIG. 103 is a diagram showing processing when a fill definition specifying function is executed.

FIG. 104 is a view showing processing when executing a function for drawing a straight line;

FIG. 105 is a view showing processing when a straight line drawing function is executed;

FIG. 106 is a diagram showing processing when executing a polygon drawing function.

FIG. 107 is a view showing processing when executing a polygon drawing function;

FIG. 108 is a diagram showing processing when executing a polygon drawing function.

FIG. 109 is a view showing processing when a circle drawing function is executed;

FIG. 110 is a view showing processing when executing a function of drawing a circle;

FIG. 111 is a diagram showing processing when executing a character drawing function.

FIG. 112 is a view showing processing when a character drawing function is executed;

FIG. 113 is a diagram showing processing when a skip function is executed;

FIG. 114 is a diagram illustrating processing for color printing.

FIG. 115 is a diagram illustrating processing for color printing.

FIG. 116 is a view showing a band height information table in which band heights and memory capacities are stored.

FIG. 117 is a flowchart for changing and setting a development memory for each color material from information on the capacity of the RAM.

FIG. 118 is another embodiment of FIG. 117.

FIG. 119 is a diagram showing processing for initializing a band memory.

FIG. 120 is a diagram showing processing for initializing a band memory;

FIG. 121 is a diagram showing processing for initializing a band memory.

FIG. 122 is a diagram showing processing that can be replaced with color recording processing.

FIG. 123 is a diagram showing processing that can be replaced with color recording processing.

FIG. 124 is a diagram showing processing that can be replaced with color recording processing.

FIG. 125 is a diagram showing processing that can be replaced with color recording processing.

FIG. 126 is a flowchart showing a process of performing a color recording process by selecting a mode.

FIG. 127 is a view showing an example of an operation panel 22 shown in FIG. 13;

FIG. 128 is an exemplary diagram of a memory map using one set of band memories for each color material;

Fig. 129 is a flowchart showing processing for performing color printing processing by selecting a mode.

130 is an exemplary diagram of the recording control command shown in FIG. 129.

FIG. 131 is a view showing a process of selecting a recording control mode based on the amount of free space in a RAM area.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Host computer 2 Interface 3 Command analysis part 4 Command analysis table 5 Band information storage part 6 Band height information table 7 Color reproduction information storage part 8 Color reproduction processing part 9 Character information storage part 10 Control part 11 Memory development information storage part 12 Attribute Information storage area 13 Memory development information storage area 14 Memory development information analysis unit 15 Command execution jump table 1 16 Command execution jump table 2 17 Pattern development unit 18 Development memory 19 Output unit 20 Path control table 21 Output buffer 22 Operation panel

Claims (6)

(57) [Claims] 1. An image processing apparatus which receives print data described in a page description language and controls a print process of image data drawn in a band unit in a storage unit based on the print data, Analyzing the data, the band memory of the storage means
When drawing the drawing position where the drawing target <br/> is drawn in the memory development information is information for deploying, and analyzing means for determining the printer coordinate system, the drawing object in the band memory, the < updating means for obtaining a head address in the storage means as a head address of a printer coordinate system of a virtual page memory serving as a reference for the band memory from an address in the storage means of the band memory, and updating the updating; Developing means for expanding and drawing the drawing object in the band memory based on the head address of the printer coordinate system updated by the means and the drawing position of the drawing object obtained by the analysis means. Image processing apparatus. Wherein said obtained by analyzing the print data
And memory development information, before obtained by the printer coordinate system
The memory expansion information further includes a holding unit that holds a drawing target of the memory expansion information in association with a band to be drawn, wherein the expansion unit is held by the holding unit when performing expansion processing on a certain band memory. Based on the content,
2. The image processing apparatus according to claim 1, wherein a rendering process is performed on a rendering target to be rendered in the band memory. 3. The printing apparatus according to claim 1, wherein the analysis unit converts print data described in a page description language having a first type of color attribute into a second type of color attribute. Image processing device. 4. The image processing apparatus according to claim 1, wherein the updating unit updates a head address for each band memory corresponding to a color to output the drawing target. 5. A recording head for controlling a recording process of the developed data, wherein the band memory is capable of storing bit image data of a rectangular area having one side equal to an integral multiple of the height of the recording head. 5. The image processing apparatus according to claim 1, wherein: 6. An image processing method for receiving print data described in a page description language, and controlling print processing of image data drawn in a band unit in a storage unit based on the print data, the image processing method comprising: Analyzing the data, the band memory of the storage means
The drawing position where the drawing target of the memory development information, which is the information for developing the drawing, is drawn in the printer coordinate system, and when the drawing target is drawn in the band memory, From the address in the storage means, determine the head address in the storage means as the head address of the printer coordinate system of the virtual page memory as a reference for the band memory, update, and update the head address of the updated printer coordinate system; based on the drawing position of the object in which the determined, image drawing pairs
An image processing method for developing and drawing an elephant in the band memory.