CN114889346A - Jet printing control method, controller and digital printer - Google Patents
Jet printing control method, controller and digital printer Download PDFInfo
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- CN114889346A CN114889346A CN202210441576.6A CN202210441576A CN114889346A CN 114889346 A CN114889346 A CN 114889346A CN 202210441576 A CN202210441576 A CN 202210441576A CN 114889346 A CN114889346 A CN 114889346A
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- 238000007639 printing Methods 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 62
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims 1
- 239000000976 ink Substances 0.000 description 20
- 238000007641 inkjet printing Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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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 embodiment of the invention relates to the technical field of digital printing, and discloses a jet printing control method, a controller and a digital printer, wherein the printer comprises a printing medium and a digital nozzle, the digital nozzle is configured to execute jet printing work on the printing medium, a plurality of continuous digital nozzles form a long working area, the method obtains image information of the printing medium to obtain the covering times and resolution multiples of the same position to calculate the actual printing times, divides the long working area into a plurality of working areas according to the resolution multiples and forms corresponding printing data on the working areas, obtains a preset stepping value of each stepping according to the actual printing times and the length of the long working area, controls the relative movement between the printing medium and the digital nozzle and controls the long working area to print the image, and the embodiment of the invention carries out independent ink jet control by dividing the long working area to ensure that the shape of formed ink drops is regular, the printed image has even ink jet and high printing efficiency, and can reduce the damage to the spray head.
Description
Technical Field
The embodiment of the invention relates to the technical field of digital printing, in particular to a jet printing control method, a controller and a digital printer.
Background
When in ink jet printing, ink drops are sprayed to a printing medium through a nozzle on a digital nozzle to obtain an image, the reciprocating scanning printing technology is a commonly used technology at present, and is also called as multi-PASS scanning printing, the multi-PASS scanning printing means that each unit of the image to be printed can be printed only by performing interpolation for many times, each unit consists of a plurality of pixel points, for example, 2PASS scanning printing means that each unit region consists of 2 pixel points, and 3PASS scanning printing means that each unit region consists of 3 unit pixel points.
In implementing the embodiments of the present invention, the inventors found that at least the following problems exist in the above related art: present digital shower nozzle can set up the single row according to printing width needs, double, three rows even more compound mode, rectangular workspace that the shower nozzle formed is when carrying out many PASS stack prints, the work load of rectangular workspace from both ends to the orifice in the middle of constantly increasing, the both ends regional section of rectangular workspace is low-load regional section, middle regional section is high-load regional section, cause some orifice damage of middle regional section not to go out black or the regional temperature of this risees fast easily, the influence is from orifice spun ink droplet state nature, PASS way and wire drawing problem can appear in the print image, and can accelerate the damage of shower nozzle, and this kind of phenomenon is more obvious when multirow shower nozzle concatenation forms rectangular workspace, because the high negative zone section in middle region is longer.
Disclosure of Invention
The embodiment of the application provides a jet printing control method, a controller and a digital printer.
The purpose of the embodiment of the invention is realized by the following technical scheme:
in order to solve the foregoing technical problem, in a first aspect, an embodiment of the present invention provides a print control method applied to a digital printer, where the digital printer includes a digital nozzle, the digital nozzle is configured to perform print work on a print medium, and a plurality of consecutive digital nozzles form a long work area, where the method includes: acquiring image information of the printing medium to acquire the same position covering times and resolution multiples of the printing medium; calculating actual printing times according to the covering times of the same position and the resolution ratio multiple; dividing the strip working area into a plurality of working areas according to the resolution multiple; forming corresponding printing data on the plurality of working areas according to the image to be printed; acquiring a preset stepping value of each stepping according to the actual printing times and the length of the long strip working area; and controlling the printing medium and the digital spray head to relatively move according to the preset stepping value, and controlling the long-strip working area to finish printing of each stepping on the printing medium so as to obtain a printed image.
In some embodiments, said calculating an actual number of prints from said number of same position coverage and said resolution multiple comprises: multiplying the same position covering times by the resolution multiple to obtain the actual printing times.
In some embodiments, the acquiring the image information of the printing medium to acquire the number of times of coverage of the same position of the printing medium and the resolution multiple includes: acquiring a screen value of the medium to be printed according to the image information of the printing medium; and determining the covering times of the same position of the printing medium according to the screen value.
In some embodiments, the method further comprises: and calculating the resolution multiple according to the physical resolution of the digital nozzle and the required printing precision.
In some embodiments, the calculating the resolution multiple comprises: dividing the required printing precision by the physical resolution to obtain the resolution multiple.
In some embodiments, the dividing the stripe work area into a plurality of work areas according to the resolution multiple includes: when the resolution multiple is odd, dividing the long working area into a plurality of working areas with odd parts; and when the resolution multiple is an even number, dividing the long-strip working area into a plurality of integral working areas of which the even number is divided by the power of N of 2.
In some embodiments, the controlling the printing medium and the digital nozzle to move relatively according to the preset step value includes: and controlling the digital spray head to move along the stepping direction according to the preset stepping value.
In some embodiments, the controlling the printing medium and the digital nozzle to move relatively according to the preset step value includes: and controlling the printing medium to move along the stepping direction according to the preset stepping value.
In order to solve the above technical problem, in a second aspect, an embodiment of the present invention provides a controller, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect.
In order to solve the above technical problem, in a third aspect, an embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method according to the first aspect.
To solve the above technical problem, in a fourth aspect, the present invention further provides a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the method according to the first aspect.
In order to solve the above technical problem, in a fifth aspect, an embodiment of the present invention further provides a digital printer, including: the digital spray heads are configured to perform spray printing work on a printing medium, and a plurality of continuous digital spray heads form a long-strip working area; the controller according to the second aspect is connected to the printing medium and the digital inkjet head, respectively.
Compared with the prior art, the invention has the beneficial effects that: different from the prior art, the embodiment of the invention provides a jet printing control method, a controller and a digital printer, wherein the digital printer comprises a digital nozzle which is configured to execute jet printing work on a printing medium, a plurality of continuous digital nozzles form a strip working area, the method comprises the steps of firstly obtaining image information of the printing medium to obtain the same position covering times and resolution multiple of the printing medium, so as to obtain actual printing times through calculation, then dividing the strip working area into a plurality of working areas according to the resolution multiple, then forming corresponding printing data on the plurality of working areas according to an image to be printed, then obtaining a preset stepping value of each stepping according to the actual printing times and the length of the strip working area, and finally controlling the relative movement between the printing medium and the digital nozzle according to the preset stepping value, the long working areas are divided to carry out independent ink jet control, so that the formed ink drops are regular in shape, the printed images are uniform in ink jet, the printing efficiency is high, and damage to the spray heads can be reduced.
Drawings
The embodiments are illustrated by the figures of the accompanying drawings which correspond and are not meant to limit the embodiments, in which elements/modules and steps having the same reference number designation may be referred to by similar elements/modules and steps, unless otherwise indicated, and in which the drawings are not to scale.
Fig. 1(a) is a schematic diagram of an application environment of a nozzle head adopting a monochrome single-line mode in a jet printing control method provided by an embodiment of the invention;
fig. 1(b) is a schematic diagram of an application environment in which a nozzle in a single-color double-line mode is used in the jet printing control method according to the embodiment of the present invention;
fig. 1(c) is a schematic diagram of an application environment of a nozzle head adopting a monochrome three-row mode in the jet printing control method provided by the embodiment of the invention;
fig. 2 is a schematic flow chart of a method for controlling inkjet printing according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sub-flow chart of step S10 in the jet printing control method shown in FIG. 2;
FIG. 4 is a schematic diagram of different workload situations for orifices of a long stripe workspace with a number of same location coverage of 2 and a resolution multiple of 2;
FIG. 5(a) is a schematic diagram of the nozzle hole workload of a long stripe work area with the same position coverage times of 3 and resolution multiple of 2;
FIG. 5(b) is a schematic diagram of the nozzle hole workload of a long stripe working area with the same position covering times being 3 and the resolution multiple being 3;
FIG. 5(c) is a schematic diagram of the nozzle hole workload of a long stripe working area with the same position coverage times of 3 and resolution multiples of 4;
FIG. 5(d) is a schematic diagram showing the nozzle hole workload of a long stripe work area with the same position covered by 2 times and resolution multiple of 2;
fig. 6 is a schematic diagram of a hardware structure of a controller according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a digital printer according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the present application. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to solve the problem that the images printed by the current control scheme of ink-jet printing are easy to have PASS tracks and stringiness, and the problem that the ink output of the nozzle is not uniform and is easy to damage, the embodiment of the invention provides a jet printing control method, a controller and a digital printer, in the multi-step scanning printing process, the ink-jet mode is respectively and independently controlled by dividing a long-strip working area consisting of a single or a plurality of nozzles, the ink-jet mode is continuously superposed and printed to form ink drops with regular and ordered shapes, thereby being not influenced by the blockage of a single or a plurality of spray heads and the inclined spraying, achieving the effect of multilayer superposition, being capable of remedying the problems of uneven wire drawing and ink jetting caused by the blockage of the holes and the inclined spraying, simultaneously reducing the load of the single spray head, and only the original ink jet control mode of the spray head is changed, the original printing mode is not changed, the printing efficiency is not reduced, and the printing efficiency and the printing quality are guaranteed.
Fig. 1 is a schematic diagram of an application environment of a method for controlling inkjet printing according to an embodiment of the present invention, where fig. 1(a) is an example of a single-color single-line inkjet head, fig. 1(b) is an example of a single-color double-line inkjet head, fig. 1(c) is an example of a single-color three-line inkjet head, and the digital inkjet head shown in fig. 1 is a bottom view of the inkjet head, the application environment including: a print medium 10 and a digital ejection head 20. The heads shown in fig. 1 may be monochrome heads, and may be multicolor heads capable of ejecting color inks in other application scenarios, and specific ink colors contained in the heads and the arrangement of the heads may be set according to actual application scenarios.
The printing medium 10 is a medium capable of receiving inkjet and forming a pattern, and the printing medium 10 may be corrugated paper, printing paper, photo paper, a housing of a product, and the like, and specifically, may be selected according to the needs of an actual application scenario. Wherein, the stepping can be realized by controlling the printing medium 10 to move or the digital nozzle 20 to move.
The digital nozzle 20 is a device capable of ejecting monochromatic or multicolor ink, a plurality of continuous digital nozzles 20 form a long working area a as shown in fig. 1, the digital nozzles 20 include a single row, multiple rows, a single row symmetrical or multiple rows symmetrical arrangement, the ink ejection mode of the digital nozzles 20 is generally controlled as a whole in the printing process, the processing mode of the multiple rows of nozzles as shown in fig. 1(b) and fig. 1(c) also comprises a plurality of nozzles in the same row, the nozzles in the same color are defaulted to be an integral nozzle, the ink ejection control in the same mode is carried out, for example, when a single nozzle prints 4 steps, the long working area a formed by the digital nozzles 20 is scanned at the printing position by software, only a quarter part of the long working area a is ejected at each step, each step is mutually overlapped, and finally 4 times of step printing is completed, thus, scanning printing is performed once per step.
The jet printing control method provided by the embodiment of the invention can realize jet printing of images by controlling the movement of the printing medium 10 or the digital nozzle 20 and the ink jetting of the digital nozzle 20, and the jet printing method can be executed by a control unit in a system.
Specifically, the embodiments of the present invention will be further explained below with reference to the drawings.
Example one
An embodiment of the present invention provides a method for controlling inkjet printing, please refer to fig. 2, which shows a flow of the method for controlling inkjet printing according to the embodiment of the present invention, the method is applied to a digital printer, the digital printer includes a digital nozzle, the digital nozzle is configured to perform inkjet printing work on a printing medium, a plurality of consecutive digital nozzles form a long working area, and the method includes, but is not limited to, the following steps:
step S10: acquiring image information of the printing medium to acquire the same position covering times and resolution multiples of the printing medium;
specifically, referring to fig. 3 together, which shows a sub-flow of step S10 in the method for controlling inkjet printing shown in fig. 2, the acquiring image information of the printing medium to acquire the number of times of coverage of the same position of the printing medium and the resolution multiple includes:
step S11: acquiring a screen value of the medium to be printed according to the image information of the printing medium;
in the embodiment of the present invention, for the grayscale image or the color separation image, a Screen value of the medium to be printed, that is, Screen Resolution/Screen frequency/Screen Resolution (Screen Resolution) may also be obtained.
Step S12: determining the covering times of the same position of the printing medium according to the screen value;
after the screen value of the printing medium is obtained, the number of dots per inch LP on the screen used by the printed gray-scale image or color separation image can be obtained, so that the number of times of spray printing coverage required for printing the target image at the same position is determined by combining the resolution of the image required to be printed.
Step S13: and calculating the resolution multiple according to the physical resolution of the digital nozzle and the required printing precision.
Wherein the calculating the resolution multiple comprises: dividing the required printing precision by the physical resolution to obtain the resolution multiple. For example: the physical resolution of the digital nozzle is 300DPI, the printing precision is 600DPI, and the resolution multiple is 2.
Step S20: calculating actual printing times according to the covering times of the same position and the resolution multiple;
specifically, the same position covering times are multiplied by the resolution multiple to obtain the actual printing times. For example, in the case where the number of times of the same position coverage is 3 and the resolution multiple is 2, the completion of printing a certain area of the printing medium requires the completion of the superposition of 6 actual printing times.
Step S30: dividing the strip working area into a plurality of working areas according to the resolution multiple;
specifically, when the resolution multiple is odd, dividing the long working area into a plurality of working areas with odd number; and when the resolution multiple is an even number, dividing the long-strip working area into a plurality of integral working areas of which the even number is divided by the power of N of 2. For example: when the resolution multiple is 6, the average may be 6 parts or 3 parts, and when the resolution multiple is 8, the average may be 8 parts, 4 parts, or 2 parts.
Further, the workload change of each of the plurality of working areas from two ends to the middle may be a symmetric change and an asymmetric change from zero or non-zero, specifically set according to the actual requirement, please refer to fig. 4 together, which shows the workload of the nozzle holes in a single working area when the number of coverage times of the same position is 2 and the resolution multiple is 2, that is, the number of the nozzle holes in the unit area for dot ink-jet operation accounts for the total number of the nozzle holes, specifically, two ends of each part are low-pressure load area sections and the middle is a high-load area section, where fig. 4(a) shows that the number of the ink-jet nozzle holes at two ends of two low-pressure load area sections increases from two ends to the middle and is non-zero symmetric arrangement, fig. 4(b) and fig. 4(c) show that the number of the ink-jet nozzle holes at two ends of two low-pressure load area sections increases from the middle, where fig. 4(b) shows that the number of the ink-jet nozzle holes at two adjacent low-pressure load area sections changes from zero, fig. 4(c) shows that the number of ink jetting holes adjacent to the two low-pressure loading areas changes from non-zero, and the number of ink jetting holes far from the junction of the two low-pressure loading areas changes from zero, which can be specifically set according to actual needs.
Step S40: forming corresponding printing data on the plurality of working areas according to the image to be printed;
in the embodiment of the invention, after the strip working area is divided into a plurality of working areas, corresponding printing data is formed in each working area so as to further execute ink jet work according to the printing data.
Step S50: acquiring a preset stepping value of each stepping according to the actual printing times and the length of the long strip working area;
specifically, referring to fig. 5(a), 5(b), 5(c), and 5(d), workload conditions of orifices in the stripe work area of the prior art and the present solution are respectively shown under the same position coverage times and the same resolution, specifically, when a side end of the stripe work area of the nozzles is viewed, an arc line indicates workload conditions of the stripe work area from two ends to a middle orifice.
As shown in fig. 5(a), when the number of times of covering the same position is 3 and the resolution multiple is 2, 6 steps are required to complete the printing of a certain area of the printing medium to complete the 6PASS overlay printing, that is, the preset step value of each step is one sixth of the length of the long working area; as shown in fig. 5(b), when the number of times of covering the same position is 3 and the resolution multiple is 3, the long work area is divided into three parts, 9 steps are required to be printed to complete printing of a certain area of the printing medium, 9PASS overlay printing is completed, and the preset step value is one ninth of the length of the long work area; as shown in fig. 5(c), when the number of times of covering the same position is 3 and the resolution multiple is 4, the strip work area may be divided into four or two parts, and printing in a certain area of the printing medium is completed by 12 steps for completing 12PASS overlay printing, where the preset step value is one twelfth of the length of the strip work area; as shown in fig. 5(d), when the number of times of covering the same position is 2 and the resolution multiple is 2, the long work area may be divided into two parts, and printing for a certain area of the printing medium needs to be performed 4 times for completing 4PASS overlay printing, where the preset step value is a quarter of the length of the long work area.
Step S60: and controlling the printing medium and the digital spray head to relatively move according to the preset stepping value, and controlling the strip working area to complete stepping printing on the printing medium every time so as to obtain a printed image.
Specifically, the relative movement is divided into two cases: and the printing medium is fixed, the digital spray head is controlled to move along the stepping direction according to the preset stepping value, or the digital spray head is fixed, and the printing medium is controlled to move along the stepping direction according to the preset stepping value, so that the printing medium is relatively stepped from one end of the long working area to the other end in sequence according to the preset stepping value and the stepping number, and the superposition printing is completed to obtain a final printing image. The digital spray heads in the two modes move left and right along the direction vertical to the front and back stepping directions.
For example, taking the number of times of covering the same position shown in fig. 5(a) as 3 and the resolution multiple as 2 as an example, 6 steps are required to complete the printing of a certain area of the printing medium, the two end area sections of the long working area of the existing original scheme are low-load area sections, the middle area section is a high-load area section, and the high-load area is continuously concentrated.
In the solution of the embodiment of the present invention, please refer to fig. 5(a) continuously, the long working area is divided into two parts, the original print data is divided into two parts, two ends of each part are low-pressure load area sections, and the middle part is a high-load area section, but the high-load area section is changed from the traditional mode into two area distributions, so the high-load area sections are not concentrated, and are distributed in two independent areas, and relatively speaking, the number of nozzles continuously located in the high-load area sections is reduced, so even if a certain nozzle is damaged and ink is not discharged, because the data is divided into two areas to be homogenized, the data shows less influence under 6PASS superposition printing, and the number of high-load nozzles continuously located together is small, the temperature of the nozzles is not increased so easily, the state properties of ink droplets are not affected easily, so that the printed image does not have PASS and stringiness, the service life of the spray head is also increased, and the construction cost is invested. Compared with the traditional scheme, the printing efficiency of the scheme of the embodiment of the invention is unchanged, the 6PASS printing superposition is carried out for 6 steps on a certain area of the printing medium, and the total ink drop data after the printing of a single area is unchanged.
Example two
An embodiment of the present invention further provides a controller, please refer to fig. 6, which shows a hardware structure of a controller capable of executing the inkjet printing control method described in fig. 2 to fig. 3.
The controller 30 includes: at least one processor 31; and a memory 32 communicatively coupled to the at least one processor 31, with one processor 31 being illustrated in fig. 6. The memory 32 stores instructions executable by the at least one processor 31, and the instructions are executed by the at least one processor 31, so that the at least one processor 31 can execute the inkjet printing control method described in fig. 2 to 3. The processor 31 and the memory 32 may be connected by a bus or other means, and fig. 6 illustrates the connection by a bus as an example.
The memory 32 is a non-volatile computer-readable storage medium, and can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the inkjet printing control method in the embodiment of the present application. The processor 31 executes various functional applications and data processing of the controller by running nonvolatile software programs, instructions and modules stored in the memory 32, that is, the jet printing control method of the above method embodiment is realized.
The memory 32 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the jet printing control apparatus, and the like. Further, the memory 32 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 32 may optionally include memory located remotely from processor 31, which may be connected to the jet printing control device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 32 and, when executed by the one or more processors 31, perform the jet printing control method in any of the method embodiments described above, e.g., performing the method steps of fig. 2-3 described above.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the methods provided in the embodiments of the present application.
Embodiments of the present application also provide a non-transitory computer-readable storage medium storing computer-executable instructions for execution by one or more processors, e.g., to perform the method steps of fig. 2-3 described above.
Embodiments of the present application further provide a computer program product comprising a computer program stored on a non-volatile computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform a jet printing control method in any of the above-described method embodiments, for example, to perform the method steps of fig. 2 to 3 described above.
EXAMPLE III
Referring to fig. 7, which illustrates a structure of a digital printer 100 according to an embodiment of the present invention, the digital printer 100 includes a digital nozzle 20 and a controller 30, wherein the digital nozzle 20 is configured to perform a printing operation on a printing medium 10, and a plurality of consecutive digital nozzles 20 form a long working area.
The printing medium 10 may be the printing medium 10 shown in fig. 1 and the application scenario, and the digital nozzle 20 may be the digital nozzle 20 shown in fig. 1 and the application scenario, which is described with reference to fig. 1 and described above, and details thereof are not described herein. The step movement of the printing medium 10 may be implemented by a mechanical structure such as a conveyor on which the printing medium 10 is mounted, the digital head 20 may be implemented by a mechanical structure such as a servo motor or a guide rail, and specifically, other mechanical structures in the digital printer 100 may be provided according to actual needs.
The controller 30 is connected to the printing medium 10 and the digital inkjet head 20, and the controller 30 may be the controller 30 according to the second embodiment, and can execute the inkjet printing control method according to the first embodiment of the present invention, specifically, refer to the first embodiment and the second embodiment, and fig. 2 to 6, and therefore, detailed description thereof is omitted.
The embodiment of the invention provides a jet printing control method, a controller and a digital printer, wherein the digital printer comprises a printing medium and a digital nozzle, the digital nozzle is configured to execute jet printing work on the printing medium, a plurality of continuous digital nozzles form a strip working area, the method comprises the steps of firstly obtaining image information of the printing medium to obtain the covering times and resolution multiples of the same position of the printing medium, secondly calculating actual printing times according to the preset covering times and resolution multiples of the same position, then dividing the strip working area into a plurality of working areas according to the resolution multiples, secondly forming corresponding printing data on the plurality of working areas according to an image to be printed, secondly obtaining a preset stepping value of each stepping according to the actual printing times and the length of the strip working area, and finally controlling the relative movement between the printing medium and the digital nozzle according to the preset stepping value, the long working areas are divided to carry out independent ink jet control, so that the formed ink drops are regular in shape, the printed images are uniform in ink jet, the printing efficiency is high, and damage to the spray heads can be reduced.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A jet printing control method is characterized by being applied to a digital printer, wherein the digital printer comprises a digital spray head, the digital spray head is configured to execute jet printing work on a printing medium, and a plurality of continuous digital spray heads form a long work area, and the method comprises the following steps:
acquiring image information of the printing medium to acquire the same position covering times and resolution multiples of the printing medium;
calculating actual printing times according to the covering times of the same position and the resolution ratio multiple;
dividing the strip working area into a plurality of working areas according to the resolution multiple;
forming corresponding printing data on the plurality of working areas according to the image to be printed;
acquiring a preset stepping value of each stepping according to the actual printing times and the length of the long strip working area;
and controlling the printing medium and the digital spray head to relatively move according to the preset stepping value, and controlling the strip working area to complete stepping printing on the printing medium every time so as to obtain a printed image.
2. The jet printing control method according to claim 1,
the calculating the actual printing times according to the covering times of the same position and the resolution multiple comprises the following steps:
multiplying the same position covering times by the resolution multiple to obtain the actual printing times.
3. The jet printing control method according to claim 1,
the acquiring of the image information of the printing medium to acquire the same position coverage times and the resolution multiple of the printing medium comprises:
acquiring a screen value of the medium to be printed according to the image information of the printing medium;
and determining the covering times of the same position of the printing medium according to the screen value.
4. The jet printing control method according to claim 3, further comprising:
and calculating the resolution multiple according to the physical resolution of the digital spray head and the required printing precision.
5. The jet printing control method according to claim 4,
the calculating the resolution multiple comprises:
dividing the required printing precision by the physical resolution to obtain the resolution multiple.
6. The jet printing control method according to claim 1,
according to resolution ratio multiple will rectangular work area divides into a plurality of workspace, includes:
when the resolution multiple is odd, dividing the long working area into a plurality of working areas with odd parts;
and when the resolution multiple is an even number, dividing the long-strip working area into a plurality of integral working areas of which the even number is divided by the power of N of 2.
7. The jet printing control method according to any one of claims 1 to 6,
the controlling the printing medium and the digital nozzle to move relatively according to the preset step value comprises the following steps:
and controlling the digital spray head to move along the stepping direction according to the preset stepping value.
8. The jet printing control method according to any one of claims 1 to 6,
the controlling the printing medium and the digital nozzle to move relatively according to the preset step value comprises the following steps:
and controlling the printing medium to move along the stepping direction according to the preset stepping value.
9. A controller, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.
10. A digital printer, comprising:
the digital spray heads are configured to perform spray printing work on a printing medium, and a plurality of continuous digital spray heads form a long-strip working area;
the controller of claim 9, coupled to the print medium and the digital sprayer, respectively.
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| CN114889346B (en) | 2024-03-26 |
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