CN111845078B - Printing control method, device, equipment and medium with non-overlapping printing areas - Google Patents
Printing control method, device, equipment and medium with non-overlapping printing areas Download PDFInfo
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- CN111845078B CN111845078B CN201910356263.9A CN201910356263A CN111845078B CN 111845078 B CN111845078 B CN 111845078B CN 201910356263 A CN201910356263 A CN 201910356263A CN 111845078 B CN111845078 B CN 111845078B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/12—Ink jet characterised by jet control testing or correcting charge or deflection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/125—Sensors, e.g. deflection sensors
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Abstract
The invention discloses a printing control method, a device, equipment and a medium with non-overlapped printing areas, which finish printing on a first unit area by acquiring the printing times n for finishing printing on the unit area of a to-be-printed area, controlling a spray head to continuously scan for n times along a main scanning direction according to the printing times and spraying ink; controlling the spray head or the printing medium to move a first preset distance to enable the spray head to be positioned at the target position of the second unit area; controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and spraying ink to finish printing on the second unit area; the above printing process is repeated until the nth unit area printing is completed. The invention saves printing platforms, improves printing efficiency, improves printing quality and saves printing cost.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to a printing control method, a device, equipment and a medium with non-overlapped printing areas.
Background
The ink jet printing technology is a technology for jetting ink drops to a printing medium through a nozzle on a nozzle to obtain images or characters, and mainly comprises reciprocating scanning printing, one-time scanning printing, multi-nozzle side-by-side scanning printing and the like, wherein the reciprocating scanning printing is also called multi-pass scanning printing, the multi-pass scanning printing means that each unit of an image to be printed is printed only by performing interpolation for multiple times, each unit consists of multiple pixel points, if the 2-pass scanning printing is performed, each unit consists of 2 pixel points, and if the 3-pass scanning printing is performed, each unit consists of 3 pixel points; the one-time scanning printing is also called single-pass scanning printing, and the single-pass scanning printing means that each unit of the image to be printed can be printed only by one-time scanning; the multi-nozzle side-by-side scanning printing is also called onepass scanning printing, and the onepass scanning printing refers to finishing printing an image to be printed at one time.
As shown in fig. 1, which is a method for 4pass scanning printing in the prior art, an image to be printed has n unit printing areas b, each unit area needs 4 times of coverage to complete printing, the height of each unit area in the sub-scanning direction is equal to 1/4 of the height of a nozzle in the sub-scanning direction, only the first 1/4 nozzles of the nozzle are discharged during the 1 st pass printing, the 1 st coverage printing of the first unit area b1 is completed, then the nozzle moves the height of the nozzle 1/4 in the sub-scanning direction and then prints the 2 nd pass, the first 2/4 nozzles of the nozzle discharge during the 2 nd pass printing are discharged, the 2 nd coverage printing of the first unit area b1 and the 1 st coverage printing of the second unit area b2 are completed, then the nozzle moves the height of the nozzle 1/4 nozzle along the sub-scanning direction and then prints the 3 rd pass, and so that all the nozzles on the nozzle discharge are discharged, then all the nozzles on the nozzle discharge per pass printing, the nozzle discharge still moves out of the height of the nozzle 1/4 th scan direction after printing of the nozzle discharge, and when the nozzle discharge is completed, the image is formed, the image is completed. As can be seen from fig. 1, the printing platform occupied by the multi-pass scanning printing is larger than the actual imaging area, which results in the waste of the printing platform, and the total printing times are increased due to the fact that partial nozzles do not discharge ink during the beginning and ending of printing, thereby reducing the printing efficiency.
FIG. 2 shows a single pass scanning printing method, which only prints images with accuracy requirements lower than that of nozzles, but does not print images with accuracy requirements higher than that of nozzles, although saving printing platforms and improving printing efficiency; when a small number of abnormal nozzles exist in the sprayer, compensation of the abnormal nozzles cannot be realized, and only the sprayer can be replaced, and the cost of printing is greatly increased by replacing the sprayer.
As shown in fig. 3, the method for multi-nozzle side-by-side scanning and printing greatly improves printing efficiency, but can only print images with accuracy requirements lower than that of the nozzles, and cannot print images with accuracy requirements higher than that of the nozzles; when a small amount of abnormal nozzles exist in the spray head, the compensation of the abnormal nozzles cannot be realized, and only the spray head can be replaced, and the cost of printing is greatly increased by replacing the spray head.
Disclosure of Invention
The embodiment of the invention provides a printing control method, a printing control device, printing control equipment and a printing control medium with non-overlapping printing areas, which are used for solving the problems of low printing efficiency and poor quality of printed images in the prior art.
In a first aspect, an embodiment of the present invention provides a printing control method with non-overlapping printing regions, where the method includes:
s1, acquiring the printing times n of printing completion of a unit area of a to-be-printed area, wherein n is more than or equal to 2 and is an integer, the to-be-printed area comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area, a second unit area, 8230, an m unit area, m is more than or equal to 1 and m is an integer;
s2, controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and spraying ink to finish printing the first unit area;
s3, controlling the spray head or the printing medium to move a first preset distance to enable the spray head to be located at the target position of the second unit area;
s4, controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and spraying ink to finish printing the second unit area;
s5, repeating the printing processes from the step S2 to the step S4 until the mth unit area is printed;
wherein the first unit region is adjacent to and does not overlap with the second unit region, and the head or the printing medium moves a second predetermined distance in a sub-scanning direction orthogonal to the main scanning direction after each scanning in a printing process in which the continuous scanning of the first unit region and the second unit region is completed n times.
Preferably, the printing process of the consecutive scanning n times of the first unit region is the same as the printing process of the consecutive scanning n times of the second unit region.
Preferably, the number of nozzles discharging ink on each scanning head in the printing process of completing the n consecutive scans of the first unit area is not exactly the same, and the number of nozzles discharging ink on each scanning head in the printing process of completing the n consecutive scans of the first unit area is smaller than the total number of nozzles on the head.
Preferably, the first predetermined distance is greater than the second predetermined distance.
Preferably, before the controlling the nozzle to continuously scan n times along the main scanning direction according to the number of printing times to complete the printing of the first unit area, the method further includes:
acquiring abnormal nozzle position information in the spray head;
according to the printing times and the abnormal nozzle position information, second image data corresponding to a compensation nozzle for compensating the first image data corresponding to the abnormal nozzle is obtained;
and writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating the ink discharge of the abnormal nozzle.
Preferably, the controlling the nozzle to continuously scan the ink jet for n times along the main scanning direction according to the number of printing times to complete the printing of the first unit area includes:
acquiring printing data corresponding to the spray head during each scanning according to the printing times, wherein the printing data comprises the compensation data;
and controlling the spray head to scan along the main scanning direction and jetting ink according to the printing data to finish printing of the first unit area.
In a second aspect, an embodiment of the present invention provides a printing control apparatus in which printing regions do not overlap, the apparatus including:
the printing frequency acquisition module is used for acquiring the printing frequency n for finishing printing in a unit area of a to-be-printed area, wherein n is more than or equal to 2 and is an integer, the to-be-printed area comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area and a second unit area \8230, an m unit area, m is more than or equal to 1 and m is an integer;
the first printing module is used for controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and jet ink to finish printing the first unit area;
the movement module is used for controlling the spray head or the printing medium to move a first preset distance so that the spray head is positioned at the target position of the second unit area;
the second printing module is used for controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and jet ink to finish printing the second unit area;
the repeated printing module is used for repeating the printing process from the first printing module to the second printing module until the m unit area is printed;
wherein the first unit region is adjacent to and does not overlap with the second unit region, and the head or the printing medium moves a second predetermined distance in a sub-scanning direction orthogonal to the main scanning direction after each scanning in a printing process in which the continuous scanning of the first unit region and the second unit region is completed for n times.
Preferably, the apparatus further comprises:
the abnormal nozzle acquisition module is used for acquiring the position information of the abnormal nozzle in the spray head;
the judging module is used for determining whether the abnormal nozzle is used for printing or not according to the printing times, the second preset distance and the position information of the abnormal nozzle;
the compensation nozzle acquisition module is used for acquiring second image data corresponding to a compensation nozzle for compensating the first image data corresponding to the abnormal nozzle when the abnormal nozzle is used for printing;
and the data processing module is used for writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating abnormal ink discharge of the nozzle.
In a third aspect, an embodiment of the present invention provides a printing control apparatus in which printing regions do not overlap, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In a fourth aspect, embodiments of the present invention provide a medium, on which computer program instructions are stored, which when executed by a processor implement the method of the first aspect in the above embodiments.
In summary, according to the printing control method, the printing control device, the printing control equipment and the storage medium with non-overlapping printing areas provided by the embodiments of the present invention, the printing scheme is determined by obtaining the printing times of the printing unit areas, and then the nozzles are controlled to jet ink to sequentially complete the printing of the first unit area, the second unit area and other unit areas according to the printing times, so that after the printing of one unit area is completed, the waste of the printing platform and the increase of the printing times do not exist in the next unit area, the printing platform is saved, and the printing efficiency is improved; meanwhile, in the process of finishing continuous scanning for n times of printing of each unit area, after each time of scanning, the spray head or the printing medium moves for a second preset distance along a sub-scanning direction orthogonal to the main scanning direction, so that the nozzles used in each time of scanning and printing in the n times of scanning in the same unit area are not completely the same, and the problem of uneven image ink quantity when the ink discharging conditions of the nozzles are greatly different due to the adoption of the same nozzles is avoided; and when abnormal nozzles appear, the nozzles printed at the same position can be adopted for compensation, so that the printing quality is improved, and the printing cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art printing method for multi-pass scan printing.
FIG. 2 is a schematic diagram of a prior art printing method for single pass scan printing.
Fig. 3 is a schematic diagram of a printing method of multi-nozzle printing in the prior art.
Fig. 4 is a flowchart of a printing control method with no overlap of printing areas according to the first embodiment of the present invention.
Fig. 5 is a printing diagram of a printing control method with no overlap of printing areas according to the first embodiment of the present invention.
Fig. 6 is a flowchart of a printing control method with no overlap of printing areas according to a second embodiment of the present invention.
Fig. 7 is a printing diagram of a printing control method with non-overlapping printing areas according to a second embodiment of the present invention.
Fig. 8 is a schematic configuration diagram of a printing control apparatus having no overlap of printing regions according to a third embodiment of the present invention.
Fig. 9 is a schematic configuration diagram of a print control apparatus of a fourth embodiment of the present invention in which print areas are not overlapped.
Detailed Description
Features of various aspects and exemplary embodiments of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 4, an embodiment of the present invention provides a printing control method with non-overlapping printing areas, where the method specifically includes the following steps:
s1, acquiring the printing times n of printing completion of a unit area of a to-be-printed area, wherein n is more than or equal to 2 and is an integer, the to-be-printed area comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area, a second unit area, 8230, an m unit area, m is more than or equal to 1 and m is an integer;
wherein, print the number of times for the ink cover number of times when printing unit area, and unit area's ink cover number of times more then the printing precision is higher, and then the ink degree of consistency of printing the product is better, and this embodiment is applicable to the printing that the printing precision is higher than the shower nozzle precision.
S2, controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and spraying ink to finish printing the first unit area;
specifically, the printing height of each unit area in the sub-scanning direction is determined according to the number of times of printing and the structure of the nozzle, the nozzle needing ink discharging for each time of scanning of the nozzle in the main scanning direction and the second preset distance needing moving of the nozzle or the printing medium in the sub-scanning direction between two adjacent times of scanning are determined according to the printing height, and different parts moving in the sub-scanning direction due to different structures of different printers, such as a portrait printer, the nozzle only moves in the main scanning direction, so that the printing medium moves in the sub-scanning direction for the second preset distance after each time of scanning of the nozzle in the main scanning direction; and for a flatbed printer, the printing platform is stationary, and the head moves a second predetermined distance in the sub-scanning direction after each scan in the main scanning direction. If each unit area of the image to be printed needs 4 passes to complete printing, the spray head comprises 8 nozzles, the printing height of each unit area in the sub-scanning direction is the height of 7 continuous nozzles, and the second preset distance is smaller than the distance between two adjacent nozzles on the spray head, the embodiment improves the utilization rate of the spray head, reduces the total printing times of the image to be printed and improves the printing efficiency, but the scheme cannot compensate when abnormal nozzles exist in the spray head, so the spray head needs to be replaced, and the replacement of the spray head increases the printing cost.
Preferably, the nozzles discharging ink on each scanning head during the printing process of completing the n consecutive scans of the first unit area are not all the same, and the number of nozzles discharging ink on each scanning head during the printing process of completing the n consecutive scans of the first unit area is less than the total number of nozzles on the head. If 4 passes printing is required to be finished in each unit area of the image to be printed in the example, the spray head comprises 16 nozzles, the printing height of each unit area in the sub-scanning direction is the height of 12 continuous nozzles, and the second preset distance is the height of 1 nozzle, in the process of finishing n times of continuous scanning and printing of the first unit area, the nozzles adopted in each scanning and printing are not identical, namely the scanning lines printed by the same nozzle in each scanning are different, so that the problem that when abnormal nozzles appear in the spray head, other normal nozzles can be used for compensation printing can be solved.
S3, controlling the spray head or the printing medium to move a first preset distance to enable the spray head to be located at the target position of the second unit area;
specifically, the first predetermined distance is determined according to the number of printing times and the second predetermined distance, and the nozzle or the printing medium is controlled to move by the first predetermined distance to reach the second unit area after the printing of the first unit area is completed. If 4 passes printing is required to be completed for each unit area of the image to be printed in one embodiment, the nozzle head comprises 16 nozzles, the printing height of each unit area in the sub-scanning direction is the height of 12 continuous nozzles, the second predetermined distance is the height of 1 nozzle, and then the first predetermined distance is the height of 4 continuous nozzles.
S4, controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and spraying ink to finish printing the second unit area;
specifically, in this embodiment, the printing process of the first unit area that is scanned n times continuously is the same as the printing process of the second unit area that is scanned n times continuously, and the printing process of the second unit area that is scanned n times continuously is not described herein again, which facilitates setting of a program and avoids damage to a printing device due to frequent different operations.
And S5, repeating the printing processes from the step S2 to the step S4 until the m unit area is printed.
Specifically, the image to be printed is divided into a plurality of unit areas with the same size according to the number of times of printing and the nozzle structure, the nozzle or the printing medium is moved to a second unit area for a first preset distance after the first unit area is printed, the printing of the second unit area is completed by repeating the continuous scanning of the first unit area for n times, the nozzle or the printing medium is moved to a third unit area for a first preset distance, the printing of the third unit area is completed by repeating the continuous scanning of the first unit area for n times, 8230, and the processes are repeated until the image to be printed is printed. Referring to fig. 5, which is a to-be-printed image requiring 4 passes printing, in this embodiment, the nozzle P has 10 nozzles J, and the to-be-printed image can be divided into 3 unit regions with equal size according to the number of printing times and the structure of the nozzle P, and the unit regions are the first unit regions Z 1 And a second unit region Z 2 The third unit region Z 3 Each unit area being in the sub-scanning direction L 1 Is the height of 6 continuous nozzles J on the head P, and thus it can be obtained that the head P is in the main scanning direction L during the printing process of each unit area 2 A second predetermined distance d moving in the sub-scanning direction after one scanning 2 The height of 1 nozzle J on the head P, and thus the height of the first unit area Z 1 To the second unit area Z 2 A first predetermined distance d 1 Said first predetermined distance d 1 The height of 3 consecutive nozzles J on the head P. The specific printing method of the image to be printed in fig. 5 is: according to the 4pass printing in the present embodiment, the head P is controlled in the first unit zone Z 1 Inner edge main scanning direction L 2 Scanning 4 times in succession and each scanOnce rear nozzle P along sub-scanning direction L 1 Moved by a second predetermined distance d 2 When the first unit area Z 1 After printing, the nozzle P is controlled to move a first preset distance d along the sub-scanning direction 2 To the second unit area Z 2 Then controlling the head P in the second unit area Z 2 Inner edge main scanning direction L 2 Continuously scanning for 4 times and the nozzle P is arranged along the sub-scanning direction L after each time of scanning 1 Moved by a second predetermined distance d 2 When the second unit area Z 1 After printing, the nozzle P is controlled to move a first preset distance d along the sub-scanning direction 2 Reach the third unit area Z 2 And then controls the head P in the third unit area Z 2 Inner edge main scanning direction L 2 Continuously scanning for 4 times and the nozzle P is arranged along the sub-scanning direction L after each time of scanning 1 Moved by a second predetermined distance d 2 When the third unit area Z 1 And after printing is finished, printing the image to be printed.
Referring to fig. 6, in the present example, in step S2: before controlling the nozzle to continuously scan for n times along the main scanning direction according to the printing times to complete the printing of the first unit area, the method further comprises the following steps:
s11, acquiring position information of an abnormal nozzle in the sprayer;
s12, acquiring second image data corresponding to a compensation nozzle for compensating first image data corresponding to the abnormal nozzle according to the printing times and the position information of the abnormal nozzle;
and S13, writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating the ink discharge of the abnormal nozzle.
Specifically, in this embodiment, the position information of the abnormal nozzle in the nozzle is obtained through the state diagram, and meanwhile, the position information of the abnormal nozzle in the nozzle can also be obtained through a sensor, a laser radar and the like, and the obtaining of the position information of the abnormal nozzle is not described herein for the prior art. After the position of an abnormal nozzle in a sprayer is determined, compensating nozzle position information for compensating the abnormal nozzle in the sprayer is determined according to the printing times, then first image data corresponding to the abnormal nozzle and second image data corresponding to the compensating nozzle are obtained according to the mapping relation between the nozzle position information and the image data, the second image data comprise ink outlet data and non-ink outlet data, a non-ink outlet data address in the second image data is determined, the first image data are written into the non-ink outlet data address in the second image data to generate compensating data, and the compensating nozzle prints according to the compensating data during printing, so that the abnormal nozzle part or all data can be compensated, and the problems that the ink quantity and color of a printed image are uneven or blank caused by abnormal nozzle are avoided.
Preferably, when there is an abnormal nozzle, after compensating the abnormal nozzle data, the controlling the nozzle to continuously scan n times along the main scanning direction and eject ink according to the number of printing times, and completing the printing of the first unit area includes:
acquiring printing data corresponding to the spray head during each scanning according to the printing times, wherein the printing data comprises the compensation data;
and controlling the spray head to scan along the main scanning direction and carrying out ink jet according to the printing data to finish printing the first unit area.
Specifically, referring to fig. 7, in this example, when the printing of the image to be printed 4pass is completed, the first unit area F is formed 1 The data block printed by the 4pass printing for the first time is marked as D1, the data block printed by the second time is marked as D2, the data block printed by the third time is marked as D3, and the data block printed by the fourth time is marked as D4, as shown in FIG. 7, the abnormal spray hole (1) in the spray head has broken lines at the 3 rd pass and the 4 th pass of each unit area, then the data sets of the abnormal spray hole (1) at the 3 rd pass and the 4 th pass of the unit area 1 are obtained according to the mapping relation of the spray nozzle and the image data, and then the first unit area F 1 The first image data set of the abnormal nozzle hole (1) in the 3 rd pass of (1) is
SrcData[Num 3 ]＝{Val1,Val2,...,ValNum}
Wherein Num 3 Is a first unit area F 1 Val is data information of the line.
A first unit areaDomain F 1 The 4 th pass has a first image data set of the abnormal nozzle hole (1) of
SrcData[Num 4 ]＝{Val1,Val2,...,ValNum}
Wherein Num 4 Is a first unit area F 1 Val is data information of the line.
Scanning for the first time, printing a data block D1, calculating the position x1 of a compensation spray hole corresponding to the abnormal hole (1) in the pass according to a 4pass printing scheme, recording second image data to be printed by the spray hole with the position x1 in the data block D1 as the normal state, wherein the position x1 of the compensation spray hole is the position x1 of the compensation spray hole in the data block D1
DstData[Num 1 ]＝{Val1,Val2,...,ValNum}
If there is DstData (k) =0 for a certain k, indicating that this data represents no ink discharge, the corresponding data in SrcData can be compensated for by the nozzle at position x 1.
Defining operations
Sequentially carrying out the data in SrcData and DstData
The result is assigned to DstData, i.e.
After the above calculation is completed, printing is performed using the updated DstData.
Assuming that Num1 points among the Num points can be compensated, the corresponding points are taken out of SrcData and become SrcData [ Num-Num1] = [ Val1, val 2.,. Val (Num-Num 1) ]
If Num-Num1=0, it means that the compensation is completed, otherwise, the compensation is continued.
Scanning for the second time, printing a data block D2, calculating a position x2 of a compensation jet hole corresponding to the abnormal hole (1) in the present pass according to a 4pass printing scheme, wherein the state is normal, and recording partial data to be printed by the jet hole with the position x2 in the data block D2 as DstData [ Num-Num1] = { Val1, val2,. Rightwords, val (Num-Num 1) }
Where Num-Num1 data corresponds to the data in SrcData.
If there is DstData (k) =0 for a certain k, indicating that this data represents no ink discharge, the corresponding data in SrcData can be compensated for by the nozzle at position x 2.
Sequentially carrying out the data in SrcData and DstData
The result is assigned to DstData, i.e.
After the above calculation is completed, printing is performed using the updated DstData.
Assuming that Num2 points can be compensated, the corresponding points are taken out of SrcData, and become SrcData [ Num-Num1-Num2] = [ Val1, val 2., val (Num-Num 1-Num 2) ]
If Num-Num1-Num2=0, the compensation is completed, otherwise, the compensation is continued.
And scanning for the third time, printing a data block D3, calculating a compensation hole corresponding to the abnormal hole (1) in the pass according to a 4pass printing scheme, namely the abnormal spray hole (1) per se, wherein the state of the compensation hole is abnormal, so that the pass cannot compensate
Scanning for the fourth time, printing a data block D4, calculating the position x4 of a compensation spray hole corresponding to the abnormal hole (1) in the pass according to a 4pass printing scheme, recording partial data printed by the spray hole with the position x4 in the data block D4 as data of the normal state of the compensation spray hole with the normal state of the compensation spray hole, and recording the partial data printed by the spray hole with the position x4 in the data block D4
DstData[Num-Num1-Num2]＝{Val1,Val2,...,Val(Num-Num1-Num2)}
Where Num-Num1-Num2 data correspond to data in SrcData.
If there is DstData (k) =0 for a certain k, indicating that this data represents no ink discharge, the corresponding data in SrcData can be compensated for by the nozzle at position x 4.
Sequentially carrying out the data in SrcData and DstData
The result is assigned to DstData, i.e.
After the above calculation is completed, printing is performed using the updated compensation data DstData.
Assuming that Num3 points can be compensated, the corresponding points are taken out from SrcData, and then the points are changed into
SrcData[Num-Num1-Num2-Num3]＝[Val1,Val2,...,Val(Num-Num1-Num2-Num3)]
If Num-Num1-Num2-Num3=0, the compensation is completed, otherwise, the compensation is continued.
Up to this point, the compensation of data caused by abnormal holes in the first unit area F1 in fig. 7 is completed. The compensation printing method of the other unit areas F2 and F3 is the same as that of the first unit area F1, and the compensation method of each abnormal nozzle is the same as that of the abnormal nozzle in fig. 7, and thus, the description thereof is omitted.
Referring to fig. 8, an embodiment of the present invention provides a printing control apparatus with non-overlapping printing regions, where the apparatus includes:
the printing frequency acquisition module 10 is used for acquiring the printing frequency n of finishing printing in a unit area of a to-be-printed area, wherein n is more than or equal to 2 and is an integer, the to-be-printed area comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area, a second unit area, a unit area of 8230, a unit area of m;
the first printing module 20 is used for controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and jet ink to finish printing the first unit area;
a moving module 30, configured to control the nozzle or the printing medium to move a first predetermined distance so that the nozzle is located at a target position of the second unit area;
a second printing module 40, configured to control the nozzle to continuously scan n times along the main scanning direction or a direction opposite to the main scanning direction according to the number of printing times and eject ink, so as to complete printing on the second unit area;
a repeat printing module 50 configured to repeat a printing process from the first printing module to the second printing module until the m-th unit area is printed;
wherein the first unit region is adjacent to and does not overlap with the second unit region, and the head or the printing medium moves a second predetermined distance in a sub-scanning direction orthogonal to the main scanning direction after each scanning in a printing process in which the continuous scanning of the first unit region and the second unit region is completed n times.
Preferably, the printing process of the consecutive scanning n times of the first unit area is the same as the printing process of the consecutive scanning n times of the second unit area.
Preferably, the nozzles discharging ink on each scanning head during the printing process of completing the n consecutive scans of the first unit area are not all the same, and the number of nozzles discharging ink on each scanning head during the printing process of completing the n consecutive scans of the first unit area is less than the total number of nozzles on the head.
Preferably, the first predetermined distance is greater than the second predetermined distance.
Preferably, the apparatus further comprises:
the abnormal nozzle acquisition module is used for acquiring the position information of the abnormal nozzle in the spray head;
the judging module is used for determining whether the abnormal nozzle is used for printing or not according to the printing times, the second preset distance and the position information of the abnormal nozzle;
the compensation nozzle acquisition module is used for acquiring second image data corresponding to a compensation nozzle for compensating the first image data corresponding to the abnormal nozzle when the abnormal nozzle is used for printing;
and the data processing module is used for writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating abnormal ink discharge of the nozzle.
Preferably, the first printing module 20 includes:
the printing data acquisition unit is used for acquiring printing data corresponding to the spray head during each scanning according to the printing times, and the printing data comprises the compensation data;
and the first printing unit is used for controlling the spray head to carry out ink jet according to the printing data when scanning along the main scanning direction so as to finish the printing of the first unit area.
In addition, the printing control method without overlapping of printing areas of the embodiment of the present invention described in conjunction with fig. 9 may be implemented by a printing control apparatus without overlapping of printing areas. Fig. 9 is a schematic diagram showing a hardware configuration of a print control apparatus having no overlap of print areas according to an embodiment of the present invention.
A print control device with non-overlapping print regions may comprise a processor 401 and a memory 402 storing computer program instructions.
In particular, the processor 401 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 401 reads and executes computer program instructions stored in the memory 402 to implement a printing control method in which there is no overlap in printing areas in any of the above-described embodiments.
In one example, a print control device with non-overlapping print regions may also include a communication interface 403 and a bus 410. As shown in fig. 9, the processor 401, the memory 402, and the communication interface 403 are connected via a bus 410 to complete communication therebetween.
The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
In addition, in combination with the printing control method without overlapping printing areas in the foregoing embodiments, embodiments of the present invention may provide a computer-readable storage medium to implement the method. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement a printing control method in any of the above embodiments with non-overlapping print areas.
In summary, the printing control method, apparatus, device and medium for controlling non-overlapped printing of printing areas provided in the embodiments of the present invention determine a printing scheme by obtaining the number of times of printing of a printing unit area, and then control a nozzle to sequentially complete printing of a first unit area, a second unit area and other unit areas according to the number of times of printing, so that after printing of one unit area is completed, the next unit area is printed without wasting a printing platform and increasing the number of times of printing, thereby saving the printing platform and improving the printing efficiency; meanwhile, in the process of finishing continuous scanning for n times of printing of each unit area, after each time of scanning, the spray head or the printing medium moves for a second preset distance along a sub-scanning direction orthogonal to the main scanning direction, so that the nozzles used in each time of scanning and printing in the n times of scanning in the same unit area are not completely the same, and the problem of uneven image ink quantity when the ink discharging conditions of the nozzles are greatly different due to the adoption of the same nozzles is avoided; and when abnormal nozzles appear, the nozzles printed at the same position can be adopted for compensation, so that the printing quality is improved, and the printing cost is saved.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps, after comprehending the spirit of the present invention.
Meanwhile, the above description is only a specific embodiment of the present invention, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (8)
1. A printing control method without overlapping of printing areas is applied to a reciprocating scanning printing device and comprises the following steps:
s1, obtaining the printing times n of printing completed in a unit area of an area to be printed, wherein n is more than or equal to 2 and is an integer, the area to be printed comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area, a second unit area, a unit area, an m is more than or equal to 1 and an m is an integer;
s2, controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and spraying ink to finish printing the first unit area;
s3, controlling the spray head or the printing medium to move a first preset distance to enable the spray head to be located at the target position of the second unit area;
s4, controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and spraying ink to finish printing the second unit area;
s5, repeating the printing processes from the step S2 to the step S4 until the m unit area is printed;
wherein the first unit region is adjacent to and does not overlap with the second unit region, the head or the printing medium moves by a second predetermined distance in a sub-scanning direction orthogonal to the main scanning direction after each scanning in a printing process in which the continuous scanning of the first unit region and the second unit region is completed by n times, the first predetermined distance is greater than the second predetermined distance, the method further comprising, before the S1:
acquiring abnormal nozzle position information in the spray head;
according to the printing times and the abnormal nozzle position information, second image data corresponding to a compensation nozzle for compensating the first image data corresponding to the abnormal nozzle is obtained;
and writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating ink discharge of the abnormal nozzle until compensation is completed, wherein the first image data is an abnormal nozzle data set for each scanning time in each unit area respectively acquired according to the mapping relation between the nozzle and the image data, and the compensation data is obtained by performing OR operation on the second image data and the first image data.
2. The printing control method with no overlap of printing areas according to claim 1, wherein a printing process of the consecutive scanning n times of the first unit area is the same as a printing process of the consecutive scanning n times of the second unit area.
3. The printing control method of claim 2, wherein the nozzles discharging ink on each scanning head during the n consecutive scans of the first unit area are not identical, and the number of nozzles discharging ink on each scanning head during the n consecutive scans of the first unit area is less than the total number of nozzles on the head.
4. The printing control method of claim 1, wherein the controlling the nozzle to continuously scan n times along the main scanning direction according to the number of printing times and eject ink comprises:
acquiring printing data corresponding to the spray head during each scanning according to the printing times, wherein the printing data comprises the compensation data;
and controlling the spray head to scan along the main scanning direction and carrying out ink jetting according to the printing data to finish printing the first unit area.
5. A print control apparatus having no overlap of print areas, the apparatus comprising:
the printing frequency acquisition module is used for completing the printing frequency n of printing in a unit area of a to-be-printed area, wherein n is more than or equal to 2 and is an integer, the to-be-printed area comprises a plurality of unit areas, and the unit printing areas are sequentially marked as a first unit area, a second unit area, a unit area, an m, a m, and are integers according to a printing sequence;
the first printing module is used for controlling the spray head to continuously scan for n times along the main scanning direction according to the printing times and jet ink to finish printing the first unit area;
a movement module for controlling the nozzle or the printing medium to move a first predetermined distance so that the nozzle is located at a target position of the second unit area;
the second printing module is used for controlling the spray head to continuously scan for n times along the main scanning direction or the direction opposite to the main scanning direction according to the printing times and jet ink to finish printing the second unit area;
the repeated printing module is used for repeating the printing process from the first printing module to the second printing module until the m unit area is printed;
wherein the first unit area and the second unit area are adjacent and non-overlapping, the head or the printing medium moves a second predetermined distance in a sub-scanning direction orthogonal to the main scanning direction after each scanning in a printing process of completing the continuous scanning n times of the first unit area and the second unit area, the first predetermined distance is greater than the second predetermined distance, the apparatus is further configured to:
acquiring position information of an abnormal nozzle in the spray head;
according to the printing times and the abnormal nozzle position information, second image data corresponding to a compensation nozzle for compensating the first image data corresponding to the abnormal nozzle is obtained;
and writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating ink discharge of the abnormal nozzle, and repeatedly determining whether compensation is completed, wherein the first image data is an abnormal nozzle data set of each scanning frequency in each unit area respectively obtained according to the mapping relation between the nozzle and the image data, and the compensation data is obtained by performing OR operation on the second image data and the first image data.
6. A print control apparatus with non-overlapping print regions according to claim 5, said apparatus further comprising:
the abnormal nozzle acquisition module is used for acquiring the position information of the abnormal nozzle in the spray head;
the judging module is used for determining whether the abnormal nozzle is used for printing or not according to the printing times, the second preset distance and the position information of the abnormal nozzle;
the compensation nozzle obtaining module is used for obtaining second image data corresponding to a compensation nozzle for compensating first image data corresponding to the abnormal nozzle when the abnormal nozzle is used for printing;
and the data processing module is used for writing the first image data into the address of the non-ink-discharge data of the second image data to generate compensation data for compensating abnormal ink discharge of the nozzle.
7. A print control apparatus having no overlap of print areas, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of any one of claims 1-5.
8. A medium having stored thereon computer program instructions, which, when executed by a processor, implement the method according to any one of claims 1-5.
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| CN113858805B (en) * | 2021-09-23 | 2022-09-30 | 江苏迪盛智能科技有限公司 | Bidirectional ink jet printing method and ink jet printing apparatus |
| CN114312023B (en) * | 2021-12-30 | 2023-04-11 | 深圳汉华工业数码设备有限公司 | Scanning printing method and scanning type digital printing system |
| CN115157652A (en) * | 2022-06-27 | 2022-10-11 | 共享智能装备有限公司 | 3D printing method, printer and storage medium |
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| JP3987759B2 (en) * | 2002-05-13 | 2007-10-10 | キヤノン株式会社 | Image forming apparatus and paper front end printing method |
| US8684485B2 (en) * | 2010-04-06 | 2014-04-01 | Seiko Epson Corporation | Printing device, method for controlling printing device, and computer program |
| JP5930740B2 (en) * | 2012-01-31 | 2016-06-08 | キヤノン株式会社 | Inkjet recording apparatus and inkjet recording method |
| CN108274898B (en) * | 2018-01-17 | 2019-06-04 | 森大（深圳）技术有限公司 | Ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage medium |
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