CN114683726B - Image data grouping printing method, device, control panel, equipment and storage medium - Google Patents
Image data grouping printing method, device, control panel, equipment and storage medium Download PDFInfo
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- CN114683726B CN114683726B CN202011566993.0A CN202011566993A CN114683726B CN 114683726 B CN114683726 B CN 114683726B CN 202011566993 A CN202011566993 A CN 202011566993A CN 114683726 B CN114683726 B CN 114683726B
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- 238000007639 printing Methods 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 59
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- 230000004927 fusion Effects 0.000 abstract description 17
- 238000007641 inkjet printing Methods 0.000 abstract description 10
- 238000007711 solidification Methods 0.000 abstract 2
- 230000008023 solidification Effects 0.000 abstract 2
- 238000003848 UV Light-Curing Methods 0.000 description 45
- 238000001723 curing Methods 0.000 description 43
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Classifications
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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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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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
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Abstract
The invention discloses an image data grouping printing method, an image data grouping printing device, a control panel, control equipment and a storage medium, and relates to the technical field of inkjet printing. The method of the invention divides the image data to be printed into at least the first image data and the second image data, outputs the first image data to control the first nozzle group to spray the first ink dot group on the printing medium, carries out the first solidification on the first ink dot group, then outputs the second image data to control the second nozzle group to spray the second ink dot group on the printing medium, carries out the second solidification on the first ink dot group and the second ink dot group simultaneously, avoids the technical problems of mutual fusion and deepening of the ink dots at the edge of the feathering area, and improves the printing quality.
Description
Technical Field
The present invention relates to the field of inkjet printing technologies, and in particular, to a method, an apparatus, a control board, a device, and a storage medium for printing image data packets.
Background
UV inkjet printing technology refers to digital inkjet printing technology that uses UV ink to print and UV light to cure the ink. The UV light curing technology is that the irradiation of light source with wavelength of 200-450 nm in UV light is used to trigger the instant polymerization reaction of ink and material, and the UV curing ink has no solvent component and no organic volatile matter (VOCs). The UV ink-jet technology can meet the requirements of small batch, individuation and short period, and has the characteristics of environmental protection, high efficiency, attractive appearance and the like. In the present stage UV inkjet printing, it can be classified into Single-Pass printing and multipass scanning printing. In order to ensure printing quality, the conventional printing technology usually performs feathering treatment at the joint of a spray head in Single-pass printing or at the joint of each pass in multi-pass scanning printing, but for some reasons, such as under interaction force of electrostatic attraction (self charge of UV ink), the problem of color deepening caused by ink dot fusion often occurs at the edge of a feathering area, as shown in FIG. 1, which is a schematic diagram of non-feathering area A, feathering area B and ink dot fusion at the edge C in Single-pass printing, wherein L1 is the movement direction of printing media. This phenomenon of ink dot fusion may occur in the air (ink dots are ejected from nozzles but not fall on the printing medium) or on the printing medium (e.g., the printing medium is a very smooth material with very little friction), and eventually the printed image has ink dot fusion and color deepening at the edges of the non-feathered area and the feathered area, resulting in a significant drop in print quality.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a method, an apparatus, a control board, a device, and a storage medium for printing image data packets, which are used to solve the technical problem in the prior art that the printing quality is degraded due to the ink fusion at the edge of the feathering area.
In a first aspect, an embodiment of the present invention provides a method for printing an image data packet, the method including:
splitting image data to be printed into at least first image data and second image data;
outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
performing first curing on the first ink dot group;
Outputting second image data to control the second nozzle group to spray the second ink dot group on the printing medium;
simultaneously performing a second curing of the first set of ink dots and the second set of ink dots;
the first nozzle group and the second nozzle group are arranged front and back at intervals along the printing direction, and each of the first nozzle group and the second nozzle group comprises at least one nozzle.
Preferably, the method further comprises: the working power of the second curing is larger than that of the first curing.
Preferably, the method further comprises:
When the nozzles of the first nozzle group for jetting the first ink dots are abnormal, distributing the image data printed by the abnormal nozzles in the first nozzle group to the nozzles at the corresponding positions in the second nozzle group for printing when the image data are grouped;
when the nozzles ejecting the second ink dots in the second nozzle group are abnormal, distributing the image data printed by the abnormal nozzles in the second nozzle group to the nozzles at the corresponding positions in the first nozzle group for printing when the image data are grouped.
Preferably, the image data to be printed is split into first image data, second image data, and third image data; after the second curing of the first set of ink dots and the second set of ink dots simultaneously, the method further comprises:
Outputting third image data to control a third nozzle to spray a third ink dot group on the printing medium;
And performing third curing on the first ink dot group, the second ink dot group and the third ink dot group.
Preferably, the working power of the third cure is greater than the working power of the second cure; the working power of the second curing is larger than or equal to the working power of the first curing.
Preferably, the method further comprises:
When the nozzles ejecting the first ink dots in the first nozzle group are abnormal, distributing the image data printed by the abnormal nozzles in the first nozzle group to the nozzles at the corresponding positions in the second nozzle group or the nozzles corresponding to the positions in the third nozzle group for printing when the image data are grouped;
when the nozzles for jetting the second ink dot group in the second nozzle group are abnormal, distributing the image data printed by the abnormal nozzles in the second nozzle group to the nozzles at the corresponding positions in the first nozzle group or the nozzles at the corresponding positions in the third nozzle group for printing when the image data are grouped;
When the nozzles ejecting the third ink dots in the third nozzle group are abnormal, distributing the image data printed by the abnormal nozzles in the third nozzle group to the nozzles at the corresponding positions in the first nozzle group or the nozzles at the corresponding positions in the second nozzle group for printing when the image data are grouped.
In a second aspect, an embodiment of the present invention provides an image packet printing apparatus, including:
an image data grouping module for splitting print data into at least first image data and second image data;
The first printing module outputs first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
The first curing module is used for carrying out first curing on the first ink dot group;
the second printing module outputs second image data to control the second nozzle group to spray a second ink dot group on the printing medium;
The second curing module is used for carrying out second curing on the first ink dot group and the second ink dot group;
the first nozzle group and the second nozzle group are arranged front and back at intervals along the printing direction, and each of the first nozzle group and the second nozzle group comprises at least one nozzle.
In a third aspect, embodiments of the present invention provide a control board, the control board comprising:
the main control device is used for controlling the control panel to work; and
The image data packet printing apparatus as described in the second aspect.
In a fourth aspect, an embodiment of the present invention provides an image data packet printing apparatus, the apparatus including: at least one processor, at least one, and computer program instructions stored therein, which when executed by the processor, implement the method of any of the second aspects.
In a fifth aspect, an embodiment of the present invention provides a storage medium having stored thereon computer program instructions, characterized in that the method according to any of the second aspects is implemented when said computer program instructions are executed by a processor.
In summary, the beneficial effects of the invention are as follows:
According to the image data grouping printing method, data to be printed is split into at least first image data and second image data, the first image data is output to control the first nozzle group to spray the first ink dot group on the printing medium, and the second image data is output to control the second nozzle group to spray the second ink dot group on the printing medium. Outputting split image data to control the first nozzle group and the second nozzle group to discharge ink from one nozzle respectively, wherein the ejected ink points are physically separated by the distance of one nozzle, so that interaction force between the ink points is weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; simultaneously, the first ink dot group is solidified on the printing medium, and then the first ink dot group and the second ink dot group are solidified at the same time, so that the problems of ink dot fusion and deepening of colors at the edge of the feathering area are avoided, and the printing quality is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described, and it is within the scope of the present invention to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of ink dot fusion at the edge of a feathered area in the background.
FIG. 2 is a schematic diagram of a Single-Pass UV inkjet printer according to an embodiment of the present invention.
Fig. 3 is a flow chart of an image data packet printing method in an embodiment of the present invention.
FIG. 4 is a schematic diagram of a Single-Pass UV inkjet printer for printing packets of image data in an embodiment of the present invention.
Fig. 5 is a schematic diagram of nozzles corresponding to the first nozzle group and the second nozzle group in this embodiment.
Fig. 6a is a schematic diagram of an image printing effect due to an alignment error in an embodiment of the present invention.
FIG. 6b is a schematic diagram showing the printing effect of an image after adjusting the ink amount of ink dots according to an embodiment of the present invention.
Fig. 7 is a schematic view of an arrangement of three shower head groups and three UV curing lamps in accordance with an embodiment of the present invention.
FIG. 8a is a schematic diagram of a scanning printer in accordance with an embodiment of the present invention.
Fig. 8b is a schematic diagram of image data packet printing using the scanning printer of fig. 8 a.
Fig. 9 is a schematic diagram of the structure of an image data packet printing apparatus in the embodiment of the present invention.
Fig. 10 is a schematic diagram of the structure of an image data packet printing apparatus in the embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely configured to illustrate the invention and are not configured to limit 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 invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Example 1
The embodiment of the invention adopts the image data grouping printing method in the Single-Pass UV ink-jet printer to explain how to reduce the attractive force between ink points so as to avoid the technical problem of ink point fusion. Referring to fig. 2, the Single-Pass UV inkjet printer includes:
The first head group 1, the first head group 1 is arranged along a first direction, and the first direction is perpendicular to a second direction (i.e., a printing direction or a moving direction of the printing medium 7);
The second nozzle group 2, the second nozzle group 2 and the first nozzle group 1 are arranged in front and back at a preset distance along the second direction, the distance between the first nozzle group 1 and the printing medium 7 is equal to the distance between the second nozzle group 2 and the printing medium 7, and the first nozzle 21 in the second nozzle group 2 is aligned with the first nozzle 11 in the first nozzle group 1;
A first UV curing lamp 4, the first UV curing lamp 4 being installed between the first head group 1 and the second head group 2;
the second UV curing lamp 5 is disposed before the second nozzle set 2, wherein the position of the first nozzle set 1 is the back.
Wherein the first nozzle group and the second nozzle group respectively comprise at least one nozzle.
The second UV curing lamp 5 and the first UV curing lamp 4 may be two UV curing lamps with the same rated power, or may be UV curing lamps with different rated powers, but the working power of the second UV curing lamp 5 needs to be higher than that of the first UV curing lamp 4 when curing.
The intervals among the first spray head group 1, the first UV curing lamp 4, the second spray head group 2 and the second UV curing lamp 5 are more than or equal to 0.
The first nozzle group 1, the second nozzle group 2, the first UV curing lamp 4 and the second UV curing lamp 5 are arranged on the printing module 8 side by side along the second direction, and the printing module 8 is arranged on the bracket 9.
When printing an image using the Single pass UV inkjet printer described above, the print medium 7 moves in the second direction (printing direction) and the print module 8 is stationary. As shown in fig. 3, the specific steps include:
s1: the image data to be printed is split into at least first image data and second image data.
In the present embodiment, image data to be printed is split into first image data and second image data. When the first image data is input to the first head group 1 along with the driving waveform, 2n+1-th nozzles (i.e., odd-numbered nozzles) in the first head group 1 discharge ink. Wherein n is a natural number greater than or equal to 0, n is sequentially taken Where a is the number of nozzles of the first head group 1.
When the second image data is input to the second head group 2 along with the driving waveform, the 2n+2 th nozzle (i.e. even nozzle) in the second head group 2 outputs ink, wherein n is a natural number greater than or equal to 0, n is sequentially taken out Where b is the number of nozzles of the second head group 2, and b=a.
S2: outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
Printing starts, and the first image data is output to control the first nozzle group to spray the first ink dot group on the printing medium 7.
S3: performing first curing on the first ink dot group;
As the first ink dot group moves along with the movement of the printing medium 7, when the first ink dot group passes through the first UV curing lamp 4, the first UV curing lamp 4 cures the first ink dot group for the first time, and cures the first ink dot group on the printing medium, so that the first ink dot group is prevented from being spread or moved.
S4: outputting second image data to control the second nozzle group to spray the second ink dot group on the printing medium;
As the print medium moves, the second image data is output to control the second head group to eject the second dot group onto the print medium 7 while the first dot group passes the second head group 2.
S5: and performing second curing on the first ink dot group and the second ink dot group.
When the first dot group and the second dot group reach the position of the second UV curing lamp 5, the second curing is performed simultaneously on both dot groups.
As shown in fig. 4, a schematic diagram of a Single-Pass UV inkjet printing apparatus ejecting a first set of dots and a second set of dots on a print medium, after the first set of dots is ejected on the print medium (black dots indicate ink is present), the second set of dots is ejected as the first set of dots passes by the second set of ejection heads 2, and the two sets of dots are superimposed as a complete image.
In one embodiment, the first UV curing lamp pre-cures with a low operating power during the first cure, the second UV curing during the second cure, and so on with a high operating power during the second cure, i.e., the final cure. The first ink drop group is pre-cured, so that the first ink drop group can be prevented from being diffused or moved, and the printing quality is prevented from being deteriorated due to fusion with the second ink drop group.
In one embodiment, when a plurality of nozzles in the first nozzle group 1 ejecting the first ink dot group are abnormal, such as blocking, half blocking, etc., image data printed by the abnormal nozzles in the first nozzle group is distributed to the nozzles in the corresponding positions in the second nozzle group for printing when the image data is grouped, so that the nozzles in the second nozzle group 2 corresponding to the abnormal nozzle positions in the first nozzle group 1 are printed by ink. Illustratively, as shown in fig. 5, when the 3 rd nozzle 13, 5 th nozzle 15 in the first head group 1 is abnormal, image data printed by the abnormal nozzles 13, 15 in the original first head group 1 is distributed to the 3 rd nozzle 23 and 5 th nozzle 25 in the second head group 2 for printing at the time of image data grouping. Specifically, after the image data is grouped, the first image data set is output to control the odd nozzles of the first nozzle group 1 to perform ink discharge printing, and the second image data is output to control the even nozzles of the second nozzle group 2 to perform ink discharge printing, and simultaneously, the nozzles 23 and 25 of the second nozzle group 2 perform ink discharge printing to print data of the nozzles 13 and 15 in the first nozzle group. Also, when an abnormality occurs in the nozzles ejecting the second dot group in the second head group 2, image data printed by the abnormal nozzles in the original second head group 2 is distributed to the first head group 1 for printing at the time of image data grouping. Therefore, even if an abnormal nozzle appears in one nozzle, the normal nozzle of the other nozzle can be used for compensation printing, and the printing quality reduction caused by the abnormal nozzle is avoided.
The image grouping method of the embodiment of the invention distributes the data originally printed by one nozzle group to two nozzle groups for printing. It is worth noting, however, that the heads in the first head set and the heads in the second head set may not be exactly identical, indiscriminate, due to production conditions, manufacturing processes, etc. Particularly, when the two head groups are mounted, it is difficult to achieve perfect alignment, so that there is more or less misalignment, and when the two head groups are used to print image data and one head group is used to print image data, there is often a degree of printing error due to the presence of the above error, as shown in fig. 6a, in which black dots are first ink dot groups and gray dots are second nozzle groups, and in an ideal state, the heads in the first head group and the second head group are identical and the heads in the two head groups are perfectly aligned in front-to-back, and the nozzles in the two head groups are also perfectly aligned, so that the distances between the respective ink dots of the ejected first ink dot group and second ink dot group are equal. However, due to the error (especially, due to the pair Ji Piancha of the front and rear nozzle groups), it is possible that the ink dots in the second ink dot group and the ink dots in the adjacent two first ink dot groups exist such that one side is larger than one first ink dot and the other side is smaller than the other first ink dot.
Of course, when such an alignment deviation is within an allowable range, there is not much influence on the image quality after printing. However, in order to enable better image quality after printing, the amount of ink ejected from the first ink dot group by the first head group or the amount of ink ejected from the second ink dot group by the second head group may be appropriately adjusted according to the alignment deviation value by measuring the alignment deviation of the two head groups. As shown in fig. 6b, by adjusting the ink amount of the second ink dot group so as to reduce the difference in distance between the ink dots of the two ink dot groups, the image quality degradation due to the registration error or the like has been compensated for. Particularly, in high-speed printing of a Single-Pass UV inkjet printing device, although the technical problem that color deepening occurs in a feathering channel in the prior art can be solved by adopting a front-rear nozzle group mode, the alignment deviation can also cause the influence on the image printing quality.
The image data grouping printing method of the embodiment of the invention also provides the following method for solving the technical problem caused by alignment deviation for the front-back arrangement of the first nozzle group and the second nozzle group, and the specific steps are as follows:
acquiring alignment deviation values between the spray heads in the first spray head group and the spray heads in the corresponding positions in the second spray head group;
judging whether the alignment deviation value is in a preset range or not;
And when the alignment deviation value is out of the preset range, readjusting the mounting positions of the first spray head group and the second spray head group so that the alignment deviation value between the first spray head group and the second spray head group is in the preset range.
When the alignment deviation value is in a preset range, adjusting the ink quantity of the first ink dot group sprayed by the first nozzle group or the ink quantity of the second ink dot group sprayed by the second nozzle group according to the alignment deviation value; for example, the ink amount of the nozzles of the head nozzles of the second head group located behind the first head group in the printing direction is proportional to the magnitude of the alignment deviation value when printing, and the more the deviation is, the larger the ink amount is until the ink amount reaches a preset threshold.
Further, when the abnormal nozzles at the corresponding positions of the heads of the first head group are compensated by the compensating nozzles of the heads of the second head group, the printing data of the abnormal nozzles of the heads of the first head group are written into the compensating nozzles at the positions corresponding to the abnormal nozzles of the heads of the second head group, and meanwhile, the ink quantity of the compensating nozzles is correspondingly adjusted according to the alignment deviation value, namely, the ink quantity of the compensating nozzles is correspondingly and proportionally adjusted according to the size of the alignment deviation value, so that the effect is better than that of the existing abnormal nozzles, and the quality of the obtained printing image is higher.
To obtain better image quality, the correspondence between the alignment deviation value and the increased ink amount size may be obtained by trial and error. In practicing the image data packet printing method of the present invention, the alignment deviation value may be measured first to determine the amount of ink that the nozzle group needs to increase when ejecting the ink dot group.
In the image data grouping printing method of the first embodiment, data to be printed is divided into first image data and second image data, the first image data is output to control the first nozzle group to spray the first ink dot group on the printing medium, and the second image data is output to control the second nozzle group to spray the second ink dot group on the printing medium. Outputting split image data to control the first nozzle group and the second nozzle group to discharge ink from one nozzle respectively, wherein the ejected ink points are physically separated by the distance of one nozzle, so that interaction force between the ink points is weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; simultaneously, the first ink dot group is solidified on the printing medium, and then the first ink dot group and the second ink dot group are solidified at the same time, so that the problems of ink dot fusion and deepening of colors at the edge of the feathering area are avoided, and the printing quality is improved.
Example two
In one embodiment, the Single-pass UV inkjet printing apparatus further includes a third nozzle group 3 and a third UV curing lamp 6. As shown in fig. 7, the first head group 1, the first UV curing lamp 4, the second head group 2, the second UV curing lamp 5, the third head group 3, and the third UV curing lamp 6 are arranged side by side in the second direction. The distance between the third nozzle group 3 and the printing medium 7 is equal to the distance between the second nozzle group 2 and the printing medium 7, the first nozzle 31 in the third nozzle group 3 is aligned with the first nozzle 21 in the second nozzle group, and the third nozzle group 3 is arranged in front of the second UV curing lamp 5 after the position of the first nozzle group 1 is taken as the position; the third UV curing lamp 6 is disposed before the third head group 3.
The third UV curing lamp 6, the second UV curing lamp 5 and the first UV curing lamp 4 may be three UV curing lamps with the same rated power, or may be UV curing lamps with different rated powers, but it is required to satisfy that the working power of the third UV curing lamp 6 when curing is greater than the working power of the second UV curing lamp 5, and the working power of the second UV curing lamp 5 is greater than or equal to the working power of the first UV curing lamp 4.
When printing an image using the Single pass UV printing device having three nozzle groups as described above, the print medium 7 moves in the second direction and the print module 8 is stationary. The method comprises the following specific steps:
S11: splitting image data to be printed into first image data, second image data and third image data;
Splitting image data to be printed into first image data, second image data and third image data. When the first image data is input to the first nozzle group 1 along with the driving waveform, the 3n+1th nozzle in the first nozzle group 1 discharges ink, wherein n is a natural number greater than or equal to 0, and n is sequentially taken out Where a is the number of nozzles of the first head group 1.
When the second image data is input to the first nozzle group 2 along with the driving waveform, the 3n+2 nozzle in the second nozzle group 2 discharges ink, wherein n is a natural number greater than or equal to 0, and n is sequentially taken out Where b is the number of nozzles of the second head group 2, and b=a.
When the third image data is input to the third nozzle group 3 along with the driving waveform, the 3n+3 nozzle in the third nozzle group 3 discharges ink, wherein n is a natural number greater than or equal to 0, and n is sequentially taken out Where c is the number of nozzles of the third head group 3, and c=a.
S12: outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
S13: performing first curing on the first ink dot group;
As the first ink dot group moves along with the movement of the printing medium 7, when the first ink dot group passes through the first UV curing lamp 4, the first UV curing lamp 4 cures the first ink dot group for the first time, and cures the first ink dot group on the printing medium, so that the first ink dot group is prevented from being spread or moved.
S14: outputting second image data to control the second nozzle group to spray the second ink dot group on the printing medium;
when the first ink dot group passes through the second nozzle group 2, the second image data is output to control the second nozzle group to spray the second ink dot group on the printing medium 7.
S15: performing a second curing of the first set of dots and the second set of dots;
when the first ink dot group and the second ink dot group reach the position of the second UV curing lamp, the two ink dot groups are simultaneously cured for the second time.
S16: outputting third image data to control the third nozzle group to spray a third ink dot group on the printing medium;
When the first ink dot group and the second ink dot group reach the corresponding printing positions of the third nozzle group 3, third image data is output to control the third nozzle group to spray the third ink dot group on the printing medium 7.
S17: and performing third curing on the first ink dot group, the second ink dot group and the third ink dot group.
And when the first ink dot group, the second ink dot group and the third ink dot group reach the position of the third UV curing lamp, the third ink dot group is simultaneously cured for the third time.
In one embodiment, the curing lamps are pre-cured with a lower operating power for the first and second curing and are forced with a higher power for the third curing, i.e., the final curing.
In one embodiment, when an abnormality occurs in the nozzles ejecting the first dot group in the first head group, image data printed by the abnormal nozzles in the first head group is distributed to the second head group or the third head group for printing at the time of image data grouping. Illustratively, when the j-th nozzle (j is 3n+1-th nozzle, n is equal to 0) in the first nozzle group 1 is abnormal, when the image data is grouped, the image data printed by the abnormal nozzle j in the first nozzle group 1 is distributed to the j-th nozzle in the second nozzle group 2 for printing, namely, after the first nozzle group 1 is printed, the nozzle of the second nozzle group 2 prints the second image data while the j-th nozzle of the second nozzle group 2 prints the data printed by the j-th nozzle in the first nozzle group; or may be distributed to the third head group 3 to be printed using the j-th nozzle in the third head group 3.
Also, when abnormality occurs in the nozzles ejecting the second dot group in the second head group, image data printed by the abnormal nozzles in the original second head group is distributed to the first head group or the third head group for printing at the time of image data grouping. When the nozzles of the third nozzle group for jetting the third ink dot group are abnormal, when the image data are grouped, the image data printed by the abnormal nozzles in the original third nozzle group are distributed to the first nozzle group or the second nozzle group for printing. Therefore, even if an abnormal nozzle appears in one nozzle, the normal nozzle of the other nozzle can be used for compensation printing, and the printing quality reduction caused by the abnormal nozzle is avoided.
According to the image data grouping printing method, image data to be printed is divided into first image data, second image data and third image data, the first nozzle group, the second nozzle group and the third nozzle group are controlled to respectively discharge ink at intervals of two nozzles, the sprayed ink points are physically separated by the distance of the two nozzles, and the interval is larger, so that interaction force among the ink points can be weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; the first ink dot group is firstly cured on the printing medium, then the second ink dot group is cured, and then the third ink dot group is cured, so that the problems of ink dot fusion and deepening of colors at the edge of the feathering area are avoided, and the printing quality is improved.
Example III
The embodiment of the invention adopts an image data grouping printing method in scanning type reciprocating printing to explain how to avoid the technical problem of poor printing quality caused by ink dot fusion. In this embodiment, the method is appropriately modified so that it is applicable to the scanning inkjet printing. As shown in fig. 8a, the scanning printer ejects ink as the carriage moves left and right in a first direction (printing direction) perpendicular to the direction of movement of the print medium (second direction) during printing. The print carriage includes at least one spray head including at least one row of nozzles. In the scanning type ink-jet printing process, the original spray heads and the original UV curing lamps can be used for printing without increasing the number of the spray heads and the number of the UV curing lamps, and the method specifically comprises the following steps:
S111: splitting image data to be printed into first image data and second image data;
When the first image data is input to the head along with the driving waveform, 2n+1-th nozzles (i.e., odd-numbered nozzles) in the head discharge ink. When the second image data is input to the nozzle along with the driving waveform, the 2n+2 nozzle (i.e. even nozzle) in the nozzle outputs ink, wherein n is a natural number greater than or equal to 0, and n is sequentially taken out Where d is the number of nozzles of the spray head.
S112: outputting first image data to control the spray head to spray a first ink dot group on the printing medium;
Specifically, when the printing medium is stationary and the first Pass is performed, the nozzle moves along the first direction, and first image data is output to the nozzle to spray the first ink dot group on the printing medium.
S113: performing first curing on the first ink dot group;
and (3) performing first curing on the first ink dot group by using a UV curing lamp, and curing the first ink dot group on a printing medium to avoid the diffusion or movement of the first ink dot group.
S114: outputting second image data to control the spray head to spray a second ink dot group on the printing medium;
Specifically, after the first ink dot group is ejected, when the second Pass is printed, the printing medium is not moved, the nozzle moves reversely along the first direction, and the second image data is output to the nozzle to eject the second ink dot group on the printing medium.
S115: and performing second curing on the first ink dot group and the second ink dot group.
The first set of dots and the second set of dots are cured a second time using a UV curing lamp to enhance the curing of the first set of dots while the second set of dots is cured on the print medium.
For example, as shown in fig. 8b, the first Pass outputs the first image data to control the odd nozzles of the nozzle to eject the first ink dot group on the printing medium, then performs the first curing to cure the first ink dot group on the printing medium, and the second Pass outputs the second image data to control the even nozzles of the nozzle to eject the second ink dot group on the printing medium, then performs the second curing to the two ink dot groups simultaneously, namely, performs the final curing.
The image data grouping printing method in this embodiment divides data to be printed into first image data and second image data, outputs the first image data to control the nozzle to print the first ink dot group, then cures the first ink dot group, outputs the second image data to control the ejection of the second ink dot group, and then cures the first ink dot group and the second ink dot group simultaneously. Because the spray heads in the pass printing are separated by a nozzle to discharge ink, the sprayed ink points are physically separated by a distance of one nozzle, so that the interaction force between the ink points is weakened, the ink points are prevented from being mutually close to each other in the air to be fused, meanwhile, the first ink point group is firstly solidified on a printing medium, then the second ink point group is solidified, the problems of fusion of the ink points and deepening of colors at the edge of an eclosion area are avoided, and the printing quality is improved.
Example IV
Referring to fig. 9, an embodiment of the present invention provides an image data packet printing apparatus 100, including:
An image data grouping module 101 for splitting print data into at least first image data and second image data;
A first printing module 102 for outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
A first curing module 103, configured to perform a first curing on the first ink dot group;
A second printing module 104, configured to output second image data to control the second nozzle group to eject the second ink dot group onto the printing medium;
a second curing module 105 for performing a second curing of the first set of dots and the second set of dots.
Further, the image data packet printing apparatus 100 further includes:
The third printing module is used for outputting third image data to control a third nozzle to spray a third ink dot group on the printing medium;
and the third curing module is used for carrying out third curing on the first ink dot group, the second ink dot group and the third ink dot group.
Further, the image data packet printing apparatus 100 further includes:
The first compensation module is used for distributing the image data printed by the abnormal nozzles in the first nozzle group to the nozzles at the corresponding positions in the second nozzle group for printing when the nozzles for jetting the first ink dot group in the first nozzle group are abnormal and the image data are grouped;
And the second compensation module is used for distributing the image data printed by the abnormal nozzles in the second nozzle group to the nozzles at the corresponding positions in the first nozzle group for printing when the abnormal nozzles in the second nozzle group spray the second ink dots in the second nozzle group and the image data are grouped.
Further, the image data packet printing apparatus 100 further includes:
and the third compensation module is used for distributing the image data printed by the abnormal nozzles in the third nozzle group to the corresponding positions of the first nozzle group or the second nozzle group for printing when the abnormal nozzles in the third nozzle group spray the abnormal ink dots in the third nozzle group and the image data are grouped.
The image data grouping printing device of the embodiment of the invention divides data to be printed into at least first image data and second image data, outputs the first image data to control the first nozzle group to spray the first ink dot group on the printing medium, and outputs the second image data to control the second nozzle group to spray the second ink dot group on the printing medium. Outputting split image data to control the first nozzle group and the second nozzle group to discharge ink from one nozzle respectively, wherein the ejected ink points are physically separated by the distance of one nozzle, so that interaction force between the ink points is weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; simultaneously, the first ink dot group is solidified on the printing medium, and then the first ink dot group and the second ink dot group are solidified at the same time, so that the problems of ink dot fusion and deepening of colors at the edge of the feathering area are avoided, and the printing quality is improved.
Example five
The fifth embodiment of the invention provides a control board, which comprises:
the main control device is used for controlling the control panel to work; and
An image data packet printing apparatus 100, wherein the image data packet printing apparatus 100 comprises:
An image data grouping module 101 for splitting print data into at least first image data and second image data;
A first printing module 102 for outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
A first curing module 103, configured to perform a first curing on the first ink dot group;
A second printing module 104, configured to output second image data to control the second nozzle group to eject the second ink dot group onto the printing medium;
a second curing module 105 for performing a second curing of the first set of dots and the second set of dots.
The image data grouping printing control board of the embodiment of the invention controls the first nozzle group to spray the first ink dot group on the printing medium and controls the second nozzle group to spray the second ink dot group on the printing medium. Controlling the first nozzle group and the second nozzle group to discharge ink from one nozzle respectively, wherein the ejected ink points are physically separated by the distance of one nozzle, so that the interaction force between the ink points is weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; simultaneously, the first ink dot group is cured by controlling the curing lamp, and then the first ink dot group and the second ink dot group are cured simultaneously, so that the problems of ink dot fusion and deepening of color at the edge of the feathering area are avoided, and the printing quality is improved.
Example six
In addition, the image data packet printing method of the embodiment of the present invention described in connection with fig. 10 may be implemented by an image data packet printing apparatus. Fig. 10 is a schematic diagram showing a hardware configuration of an image data packet printing apparatus according to an embodiment of the present invention.
The image data packet printing device may comprise a processor 301 and a memory 302 storing computer program instructions.
In particular, the processor 301 may include a Central Processing Unit (CPU), or an Application SPECIFIC INTEGRATED Circuit (ASIC), or may be configured as one or more integrated circuits that implement embodiments of the present invention.
Memory 302 may include mass storage for data or instructions. By way of example, and not limitation, memory 302 may comprise a hard disk drive (HARD DISK DRIVE, HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) drive, or a combination of two or more of the foregoing. Memory 302 may include removable or non-removable (or fixed) media, where appropriate. Memory 302 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 302 is a non-volatile solid-state memory. In particular embodiments, memory 302 includes Read Only Memory (ROM). The ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these, where appropriate.
The processor 301 implements any one of the image data packet printing methods of the above-described embodiments by reading and executing computer program instructions stored in the memory 302.
In one example, the image data packet printing device may also include a communication interface 303 and a bus 310. As shown in fig. 10, the processor 301, the memory 302, and the communication interface 303 are connected to each other by a bus 310 and perform communication with each other.
The communication interface 303 is mainly used to implement communication between each module, device, unit and/or apparatus in the embodiment of the present invention.
Bus 310 includes hardware, software, or both, that couple components of the image data packet printing device to one another. By way of example, and not limitation, bus 310 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a micro channel architecture (MCa) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of the above. Bus 310 may include one or more buses, where appropriate. Although embodiments of the invention have been described and illustrated with respect to a particular bus, the invention contemplates any suitable bus or interconnect.
In addition, in connection with the image data packet printing method in the above-described embodiments, the embodiments of the present invention may be implemented by providing a computer-readable storage medium. The computer readable storage medium has stored thereon computer program instructions; the computer program instructions, when executed by the processor 301, implement any of the image data packet printing methods of the above embodiments.
In summary, the method, the device, the control board, the device and the storage medium for printing the image data packets according to the embodiments of the present invention divide the data to be printed into at least first image data and second image data, output the first image data to control the first nozzle set to spray the first ink dot set on the printing medium, and output the second image data to control the second nozzle set to spray the second ink dot set on the printing medium. Outputting split image data to control the first nozzle group and the second nozzle group to discharge ink from one nozzle respectively, wherein the ejected ink points are physically separated by the distance of one nozzle, so that interaction force between the ink points is weakened, and the ink points are prevented from being mutually close to each other in the air to be fused; simultaneously, the UV curing lamp is controlled to cure the first ink dot group firstly, and then the first ink dot group and the second ink dot group are cured simultaneously, so that the problems of ink dot fusion and deepening of colors at the edge of the feathering area are avoided, and the printing quality is improved.
It should be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. The method processes of the present invention are not limited to the specific steps described and shown, but various changes, modifications and additions, or the order between steps may be made by those skilled in the art after appreciating the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. The present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
Claims (9)
1. A method of printing an image data packet, the method comprising:
splitting image data to be printed into at least first image data and second image data;
outputting first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
performing a first curing of the first set of dots on the print medium;
Outputting second image data to control the second nozzle group to spray the second ink dot group on the printing medium;
Simultaneously performing a second curing of the first set of dots and the second set of dots on the print medium;
The first nozzle group and the second nozzle group are arranged in front and back at a preset distance along the printing direction, and each of the first nozzle group and the second nozzle group comprises at least one nozzle;
The method further comprises the steps of: acquiring an alignment deviation value between the first nozzle group and the second nozzle group; judging whether the alignment deviation value is in a preset range or not; when the alignment deviation value is out of the preset range, readjusting the mounting positions of the first nozzle group and the second nozzle group so that the alignment deviation value between the first nozzle group and the second nozzle group is in the preset range; when the alignment deviation value is in a preset range, adjusting the ink quantity of the first ink point group sprayed by the first nozzle group or the ink quantity of the second ink point group sprayed by the second nozzle group according to the alignment deviation value, wherein the ink quantity is in direct proportion to the size of the alignment deviation value, and the ink quantity is larger when the deviation is more far until the ink quantity reaches a preset threshold value; when the first nozzle group has abnormal nozzles, the abnormal nozzles at the corresponding positions of the first nozzle group are compensated by the compensating nozzles of the second nozzle group, the printing data of the abnormal nozzles of the first nozzle group are written into the compensating nozzles at the positions corresponding to the abnormal nozzles of the second nozzle group, and meanwhile, the ink quantity of the compensating nozzles is correspondingly regulated according to the alignment deviation value, namely, the ink quantity of the compensating nozzles is correspondingly proportionally regulated according to the size of the alignment deviation value.
2. The image data packet printing method according to claim 1, characterized in that the method further comprises: the working power of the second curing is larger than that of the first curing.
3. The image data packet printing method according to claim 1, characterized in that the method further comprises:
When the nozzles of the first nozzle group for jetting the first ink dots are abnormal, distributing the image data printed by the abnormal nozzles in the first nozzle group to the nozzles at the corresponding positions in the second nozzle group for printing when the image data are grouped;
when the nozzles ejecting the second ink dots in the second nozzle group are abnormal, distributing the image data printed by the abnormal nozzles in the second nozzle group to the nozzles at the corresponding positions in the first nozzle group for printing when the image data are grouped.
4. The image data packet printing method according to any one of claim 1, wherein the splitting the image data to be printed into at least first image data and second image data comprises:
Splitting image data to be printed into first image data, second image data and third image data;
after the second curing of the first set of dots and the second set of dots on the print medium simultaneously, the method further comprises:
outputting third image data to control the third nozzle group to spray a third ink dot group on the printing medium;
the first set of dots, the second set of dots, and the third set of dots on the print medium are cured a third time.
5. The image data packet printing method according to claim 4, wherein the operating power of the third curing is greater than the operating power of the second curing; the working power of the second curing is larger than or equal to the working power of the first curing.
6. An image data packet printing apparatus, the apparatus comprising:
an image data grouping module for splitting print data into at least first image data and second image data;
The first printing module outputs first image data to control the first nozzle group to spray the first ink dot group on the printing medium;
The first curing module is used for carrying out first curing on the first ink dot group;
the second printing module outputs second image data to control the second nozzle group to spray a second ink dot group on the printing medium;
The second curing module is used for carrying out second curing on the first ink dot group and the second ink dot group;
The first nozzle group and the second nozzle group are arranged in front and back at a preset distance along the printing direction, and each of the first nozzle group and the second nozzle group comprises at least one nozzle;
The apparatus further comprises means for: acquiring an alignment deviation value between the first nozzle group and the second nozzle group; judging whether the alignment deviation value is in a preset range or not; when the alignment deviation value is out of the preset range, readjusting the mounting positions of the first nozzle group and the second nozzle group so that the alignment deviation value between the first nozzle group and the second nozzle group is in the preset range; when the alignment deviation value is in a preset range, adjusting the ink quantity of the first ink point group sprayed by the first nozzle group or the ink quantity of the second ink point group sprayed by the second nozzle group according to the alignment deviation value, wherein the ink quantity is in direct proportion to the size of the alignment deviation value, and the ink quantity is larger when the deviation is more far until the ink quantity reaches a preset threshold value; when the first nozzle group has abnormal nozzles, the abnormal nozzles at the corresponding positions of the first nozzle group are compensated by the compensating nozzles of the second nozzle group, the printing data of the abnormal nozzles of the first nozzle group are written into the compensating nozzles at the positions corresponding to the abnormal nozzles of the second nozzle group, and meanwhile, the ink quantity of the compensating nozzles is correspondingly regulated according to the alignment deviation value, namely, the ink quantity of the compensating nozzles is correspondingly proportionally regulated according to the size of the alignment deviation value.
7. A control board, characterized in that the control board comprises:
the main control device is used for controlling the control panel to work; and
The image data packet printing apparatus of claim 6.
8. A printer, the printer 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.
9. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1-5.
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