CN116512788A - Ink-jet printing method, device, equipment and medium for dynamically adjusting printing precision - Google Patents
Ink-jet printing method, device, equipment and medium for dynamically adjusting printing precision Download PDFInfo
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- CN116512788A CN116512788A CN202210082361.XA CN202210082361A CN116512788A CN 116512788 A CN116512788 A CN 116512788A CN 202210082361 A CN202210082361 A CN 202210082361A CN 116512788 A CN116512788 A CN 116512788A
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- 238000007639 printing Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000007641 inkjet printing Methods 0.000 title claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 141
- 238000004590 computer program Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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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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- 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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- Ink Jet (AREA)
Abstract
The invention belongs to the technical field of ink-jet printing, aims to solve the technical problem that printing precision cannot be dynamically adjusted in the prior art, and provides an ink-jet printing method, device, equipment and medium for dynamically adjusting printing precision. The method comprises the following steps: when the image precision of the image to be printed is larger than the nozzle precision, determining the nozzle rotation angle according to the image precision of the image to be printed and the nozzle parameters; controlling the spray head to rotate according to the spray head rotation angle; adjusting printing parameters according to the rotation angle of the spray head; and printing the image to be printed through the rotated spray head according to the printing parameters. The invention can automatically adjust the printing precision of the spray head according to the image precision of the image to be printed, and realizes the dynamic adjustment of the printing precision of the spray head.
Description
Technical Field
The present invention relates to the field of inkjet printing, and in particular, to an inkjet printing method, apparatus, device, and medium for dynamically adjusting printing accuracy.
Background
The existing ink-jet printing technology is mainly a multi-Pass printing technology, and the multi-Pass printing technology can realize high-precision printing and is mainly realized by the fact that a spray head trolley reciprocates in the transverse direction. When the spray head trolley moves transversely once, three processes of starting acceleration, uniform spray printing, deceleration stopping and the like are needed, the printing efficiency is low if the spray head trolley is needed to do so every time, and if unidirectional printing is performed, the spray head trolley needs to be quickly reset to one side and then the processes are repeated; if the printing is bidirectional, the above process is needed to be repeated, and the movement track of the ink points is different due to different directions of the two printing, which inevitably causes the degradation of the printing quality. Therefore, a printing mode capable of moving in one direction at high speed needs to be found, and on the basis of this Onepass printing technology is proposed.
In Onepass printing technology, the nozzle is stationary and the printing medium moves at a high speed in one direction. The current printing speed of Onepass has become one of the excellent characteristics, but on one hand, the printing precision of the nozzle is limited by the physical limitation of the nozzle and is not greatly improved, and the printing precision of the nozzle cannot be dynamically adjusted according to the precision of the printed image.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide an inkjet printing method, device, apparatus and medium for dynamically adjusting printing precision, so as to solve the technical problem that the printing precision cannot be dynamically adjusted in the prior art.
In a first aspect, an embodiment of the present invention provides an inkjet printing method for dynamically adjusting printing accuracy, where the method includes:
when the image precision of the image to be printed is larger than the nozzle precision, determining the nozzle rotation angle according to the image precision of the image to be printed and the nozzle parameters;
controlling the spray head to rotate according to the spray head rotation angle;
adjusting printing parameters according to the rotation angle of the spray head;
and printing the image to be printed through the rotated spray head according to the printing parameters.
Preferably, when the image precision of the image to be printed is greater than the nozzle precision, determining the nozzle rotation angle according to the image precision of the image to be printed and the nozzle parameter includes:
when the image precision of the image to be printed is larger than the nozzle precision, acquiring nozzle parameters, wherein the nozzle parameters comprise the distance between adjacent nozzles;
and acquiring the rotation angle of the spray head according to the precision of the image to be printed and the distance between the adjacent nozzles.
Preferably, the controlling the nozzle to rotate according to the rotation angle of the nozzle includes:
calculating a nozzle superposition angle, wherein the nozzle superposition angle is an angle at which the ink outlet positions of the nozzles are superposed after the nozzle rotates by the nozzle superposition angle;
when the rotation angle of the spray head is equal to the superposition angle of the spray nozzles, the rotation angle of the spray head is increased by a preset angle;
and controlling the spray head to rotate the spray head rotation angle towards a preset direction.
Preferably, the nozzle parameters further include a nozzle row spacing, and the adjusting the printing parameters according to the nozzle rotation angle includes:
acquiring shielding nozzle position information according to the nozzle row spacing and the nozzle rotation angle;
calculating the ink outlet delay time of each nozzle according to the rotation angle of the spray head and the position information of the shielding nozzle;
and setting a triggering parameter of each nozzle according to the ink outlet delay time of each nozzle, so as to change the ink outlet time of the nozzle.
Preferably, the acquiring shielding nozzle position information according to the nozzle row spacing and the nozzle rotation angle includes:
calculating the end position of the front shielding nozzle and the start position of the rear shielding nozzle of each row of nozzles according to the rotation angle of the spray head;
and determining the shielding nozzle position information of each row according to the front shielding nozzle end position and the rear shielding nozzle start position of each row of nozzles.
Preferably, the ink discharge delay time is calculated by the following method:
the ink outlet delay time of the nozzle in the ith row is Ti= (i-1) d sin alpha/V, wherein i is a positive integer greater than or equal to 1, d is the interval between adjacent nozzles, alpha is the rotation angle of the spray head, and V is the moving speed of the printing medium.
Preferably, the printing the image to be printed through the rotated nozzle according to the printing parameters includes:
rasterizing the image to be printed to obtain print data;
recording a nozzle corresponding to the shielding nozzle position information as a shielding nozzle, distributing non-ink-discharge data to the shielding nozzle, and distributing the printing data to nozzles except the shielding nozzle;
and outputting the printing data to finish printing the image to be printed.
In a second aspect, an embodiment of the present invention provides an inkjet printing apparatus for dynamically adjusting printing accuracy, including:
the spray head rotation angle determining module is used for determining the spray head rotation angle according to the image precision of the image to be printed and the spray head parameters when the image precision of the image to be printed is greater than the spray head precision;
the spray head rotating module is used for controlling the spray head to rotate according to the spray head rotating angle;
the printing parameter adjusting module is used for adjusting printing parameters according to the rotation angle of the spray head;
and the printing module is used for printing the image to be printed through the rotated spray head according to the printing parameters.
In a third aspect, an embodiment of the present invention provides an inkjet printing apparatus for dynamically adjusting printing accuracy, including: at least one processor, at least one memory and computer program instructions stored in the memory, which when executed by the processor, implement the method as in the first aspect of the embodiments described above.
In a fourth aspect, embodiments of the present invention provide a storage medium having stored thereon computer program instructions which, when executed by a processor, implement a method as in the first aspect of the embodiments described above.
In summary, the beneficial effects of the invention are as follows:
according to the inkjet printing method, device, equipment and medium for dynamically adjusting printing precision, when the image precision of an image to be printed is larger than the nozzle precision, the rotation angle of the nozzle is determined according to the image precision of the image to be printed and the nozzle parameters; according to the rotation angle of the spray head, the spray head is controlled to rotate, so that the dynamic adjustment of the printing precision of the spray head according to the image precision is realized, the spray head does not rotate when the image precision to be printed is low, the ink is saved, the spray head rotates when the image precision to be printed is high, and the printing precision is improved; secondly, according to the rotation angle of the spray head, adjusting printing parameters; and printing the image to be printed through the rotated spray head according to the printing parameters, so that the spray head can be ensured to print normally after rotating, and the quality of a printed product is ensured.
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 flow chart of an inkjet printing method for dynamically adjusting printing accuracy according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of calculating a rotation angle of a nozzle in an embodiment of the invention.
Fig. 3 is a schematic diagram of printing accuracy after the rotation of the nozzle in the embodiment of the invention.
Fig. 4 is a schematic flow chart of calculating the nozzle overlap angle according to an embodiment of the present invention.
FIG. 5 is a schematic view of the nozzle shield position in an embodiment of the invention.
FIG. 6 is a schematic diagram of a target print position in an embodiment of the invention.
Fig. 7 is a schematic structural diagram of an inkjet printing apparatus for dynamically adjusting printing accuracy according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of an inkjet printing apparatus for dynamically adjusting printing accuracy according to an 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.
Referring to fig. 1, an embodiment of the present invention provides an inkjet printing method for dynamically adjusting printing accuracy, which is characterized in that the method includes:
s1: when the image precision of the image to be printed is larger than the nozzle precision, determining the nozzle rotation angle according to the image precision of the image to be printed and the nozzle parameters;
in one embodiment, referring to fig. 2, the step S1 includes:
s11: when the image precision of the image to be printed is larger than the nozzle precision, acquiring nozzle parameters, wherein the nozzle parameters comprise the distance between adjacent nozzles;
s12: calculating the rotation angle of the spray head according to the distance between the adjacent nozzles and the precision of the image to be printed;
specifically, referring to fig. 3, since the rotation of the nozzles makes the projection distance between the nozzles on the nozzles smaller, the number of ink dots ejected per unit size of the printing medium increases, thereby improving the actual printing accuracy of the nozzles; in an embodiment, the rotation angle of the nozzle may be obtained by looking up an index table, where the index table includes a distance between adjacent nozzles, an image precision, and a rotation angle of the nozzle; in another embodiment, the rotation angle of the nozzle may be obtained by calculation, assuming that the nozzle includes a row of nozzles, n nozzles are included in total, the interval between adjacent nozzles is d, and when the nozzle is not rotated, the print width in the direction of the nozzle is:
W1＝n*d
wherein W1 is the printing width in the direction of the spray head, n is the number of nozzles in a row of nozzles on the spray head, and d is the interval between adjacent nozzles;
when the nozzle is not rotated, the printing precision of the nozzle is as follows:
XDpi1＝25.4*n/W1＝25.4/d
wherein XDpi1 is the printing precision of the nozzle before rotation, and W1 is the printing width;
when the spray head rotates by the spray head rotation angle, the printing width of the spray head direction is calculated by the following formula:
W2＝n*d*cosα
the printing accuracy of the head after the head is rotated is calculated by the following formula:
XDpi2＝25.4*n/W2＝25.4/(d*cosα)
according to the formula, the rotation angle of the spray head can be calculated through the parameters of the spray head and the precision of the image to be printed, so that the printing precision of the spray head after rotation is equal to the precision of the image to be printed, the printing width of the spray head can be reduced after rotation of the spray head, but in most cases, the spray head printing width and the image to be printed have a certain margin, so that the printing precision of the spray head can be improved without affecting the printing quality of the image, and in one embodiment, the rotation angle of the spray head is between 0 and 90 degrees.
S2: controlling the spray head to rotate according to the spray head rotation angle;
in one embodiment, referring to fig. 4, in the step S3, it includes:
s21: calculating a nozzle superposition angle, wherein the nozzle superposition angle is an angle at which the ink outlet positions of the nozzles are superposed after the nozzle rotates by the nozzle superposition angle;
s22: when the rotation angle of the spray head is equal to the superposition angle of the spray nozzles, the rotation angle of the spray head is increased by a preset angle;
s23: controlling the spray head to rotate the spray head rotation angle towards a preset direction;
specifically, when the nozzle includes a plurality of rows of nozzles and rotates to a certain angle, the ink outlet positions of the nozzles are overlapped, the angle is recorded as a nozzle overlapping angle, when the rotation angle of the nozzle is equal to the nozzle overlapping angle, the rotation angle of the nozzle needs to be increased by a preset angle, the ink outlet positions of the nozzles are staggered, the preset angle is determined by the interval between adjacent nozzles, the smaller the interval between the adjacent nozzles is, the smaller the preset angle is, after the final rotation angle of the nozzle is obtained, the nozzle is controlled to rotate in a preset direction by the rotation angle of the nozzle, in a specific embodiment, the preset direction is a counterclockwise direction, and in another embodiment, the preset direction is a clockwise direction;
s3: adjusting printing parameters according to the rotation angle of the spray head;
in an embodiment, the nozzle parameters further include a nozzle row spacing, and the step S3 includes:
s31: acquiring shielding nozzle position information according to the nozzle row spacing and the nozzle rotation angle;
in one embodiment, the step S31 includes:
s311: calculating the end position of a front shielding nozzle and the start position of a rear shielding nozzle of each row of nozzles according to the rotation angle of the spray head and the row spacing of the nozzles;
s322: and determining the shielding nozzle position information of each row according to the front shielding nozzle end position and the rear shielding nozzle start position of each row of nozzles.
Specifically, referring to fig. 5, when the head rotates, in order to avoid affecting printing quality, a nozzle shielding position needs to be set, when the head includes only one row of nozzles, no nozzle shielding position needs to be set, when the head includes a plurality of rows of nozzles, the head includes n rows of m columns of nozzles, from top to bottom in sequence, from 1 st row to n th row, from left to right in sequence, and from 1 st column to m th column, and the position of the nozzle to be shielded in each row of nozzles is calculated in the following manner, and the shielding nozzle position of each row of nozzles is calculated in the following manner:
the front shield nozzle position S1 of the row 1 nozzle is: ln, tan (α)/d, rear shield nozzle position L-Sn;
the shielding nozzle positions S2 of the row 2 nozzles are: ln-1 tan (α)/d, rear shield nozzle position L-Sn-1;
the front shield nozzle positions Si of the ith row of nozzles are: ln-i+1 tan (α)/d, rear shield nozzle position m-Sn-i+1;
……
the shielding nozzle positions Sn of the nth row of nozzles are: sn=0, rear shield nozzle position L-Ln tan (α)/d;
wherein n, m and i are positive integers, i is equal to or greater than 1 and is equal to or less than n, li is the distance between the 1 st row of nozzles and the i th row of nozzles, alpha is the rotation angle of the spray head, L is the distance between the first row of nozzles and the last row of nozzles, si is rounded downwards, and the method is exemplified by rounding downwards when the calculated front shielding nozzle position of the first row of nozzles is 7.5, the nozzles needing shielding of the first row are seven nozzles from left to right of the first row, non-ink-discharge data are distributed to the first seven nozzles when printing is carried out, and printing data are distributed from the 8 th nozzle of the first row in sequence;
it should be noted that, when the nozzle rotates clockwise and counterclockwise, the positions of the shielding nozzles are different, but the calculation method is the same, and will not be described here again.
S32: calculating the ink outlet delay time of each nozzle according to the rotation angle of the spray head and the position information of the shielding nozzle;
specifically, after the nozzle rotates, the same row of nozzles have physical offset in the printing direction, in order to ensure that the nozzles in the same row can print a horizontal straight line during printing, the ink outlet time sequence needs to be adjusted, after the nozzle rotates, the included angle between the printing direction and the moving direction of the nozzle is recorded as alpha, the moving speed of the printing medium is V, the delay time is T, the distance between adjacent spray holes is d, the number of the nozzles included in one row of nozzles is N, the maximum distance between the nozzles and the target printing position is H, and the ink outlet delay time of the nozzles in the same row is calculated by the following formula:
nozzle N: t=h/v= (N-1) ×d×sin α/V;
nozzle N-1: t=h/v= (N-2) d sin α/V;
spray hole N-i: ti= (N-i) d sin α/V;
……
jet orifice 1: t=h/v=d;
jet orifice 0: t=0;
for example, as shown in fig. 6, the nozzle head includes 8 nozzles, the rotation angle of the nozzle head is α, where the nozzle 1 is located at the target printing position, the distance between the nozzle 8 and the target printing position is furthest, denoted by H, and the delay time of ink output from each of the nozzles 1 to 8 can be calculated by the above formula, and when actual printing is performed, the corresponding trigger parameters are set according to the delay time of ink output from each nozzle, so that the nozzles 1 to 8 can perform printing at the target printing position during actual printing.
S33: setting a trigger parameter of each nozzle according to the ink outlet delay time of each nozzle, so as to change the ink outlet time of the nozzle;
s4: printing the image to be printed through the rotated spray head according to the printing parameters;
in an embodiment, the S4 includes:
s41: rasterizing the image to be printed to obtain print data;
s42: recording a nozzle corresponding to the shielding nozzle position information as a shielding nozzle, distributing non-ink-discharge data to the shielding nozzle, and distributing the printing data to nozzles except the shielding nozzle;
s43: outputting the print data according to the trigger parameters to complete the printing of the image to be printed
Specifically, when distributing the image data to be printed, firstly distributing non-ink-discharge data to the nozzles positioned in front of the front shielding nozzle and behind the rear shielding nozzle, then distributing the image data to be printed to the nozzles which do not contain the non-ink-discharge data, and finally controlling each nozzle to perform ink-jet printing according to the obtained printing data by the triggering parameters, so as to complete the printing of the image to be printed.
According to the inkjet printing method for dynamically adjusting printing precision provided by the embodiment 1 of the invention, when the image precision of an image to be printed is larger than the nozzle precision, the rotation angle of the nozzle is determined according to the image precision of the image to be printed and the nozzle parameters; according to the rotation angle of the spray head, the spray head is controlled to rotate, so that the dynamic adjustment of the printing precision of the spray head according to the image precision is realized, the spray head does not rotate when the image precision to be printed is low, the ink is saved, the spray head rotates when the image precision to be printed is high, and the printing precision is improved; secondly, according to the rotation angle of the spray head, adjusting printing parameters; and printing the image to be printed through the rotated spray head according to the printing parameters, so that the spray head can be ensured to print normally after rotating, and the quality of a printed product is ensured.
Example 2
Referring to fig. 7, an embodiment of the present invention provides an inkjet printing apparatus for dynamically adjusting printing accuracy, the apparatus including:
the spray head rotation angle determining module is used for determining the spray head rotation angle according to the image precision of the image to be printed and the spray head parameters when the image precision of the image to be printed is greater than the spray head precision;
the spray head rotating module is used for controlling the spray head to rotate according to the spray head rotating angle;
the printing parameter adjusting module is used for adjusting printing parameters according to the rotation angle of the spray head;
and the printing module is used for printing the image to be printed through the rotated spray head according to the printing parameters.
In one embodiment, the spray head rotation angle determining module includes:
the device comprises a spray head parameter acquisition unit, a spray head control unit and a spray head control unit, wherein the spray head parameter acquisition unit is used for acquiring spray head parameters when the image precision of an image to be printed is greater than the spray head precision, and the spray head parameters comprise the distance between adjacent nozzles;
and the spray head rotation angle calculation unit is used for obtaining the spray head rotation angle according to the distance between the adjacent nozzles and the image precision to be printed.
In one embodiment, the showerhead rotation module further comprises:
the nozzle superposition angle calculation unit is used for calculating a nozzle superposition angle, wherein the nozzle superposition angle is an angle at which the ink outlet positions of the nozzles are superposed after the nozzle rotates by the nozzle superposition angle;
the spray head rotation angle increasing unit is used for increasing the spray head rotation angle by a preset angle when the spray head rotation angle is equal to the nozzle superposition angle;
and the spray head rotating unit is used for controlling the spray head to rotate the spray head rotating angle towards a preset direction.
Preferably, the printing parameter adjustment module includes:
a shielding nozzle position information acquisition unit for acquiring shielding nozzle position information according to the nozzle row spacing and the nozzle rotation angle;
an ink outlet delay time calculation unit for calculating the ink outlet delay time of each nozzle according to the rotation angle of the spray head and the position information of the shielding nozzle;
the trigger parameter setting unit is used for setting the trigger parameter of each nozzle according to the ink outlet delay time of each nozzle, so as to change the ink outlet time of the nozzle.
Preferably, the shielding nozzle position information acquisition unit includes:
a shielding nozzle position determining subunit, configured to calculate a front shielding nozzle end position and a rear shielding nozzle start position of each row of nozzles according to the rotation angle of the nozzle;
a shielding nozzle position information determining subunit, configured to determine the shielding nozzle position information of each row according to the front shielding nozzle end position and the rear shielding nozzle start position of each row of nozzles:
preferably, the ink discharge delay time of the ith row and jth column nozzles is ti= (j-1) ×d×sin α/V, where i and j are positive integers greater than or equal to 1, d is the interval between adjacent nozzles, α is the head rotation angle, and V is the printing medium moving speed.
Preferably, the printing module includes:
the rasterization processing unit is used for rasterizing the image to be printed to obtain print data;
a print data distribution unit configured to record a nozzle corresponding to the shield nozzle position information as a shield nozzle, distribute non-ink-discharge data to the shield nozzle, and distribute the print data to nozzles other than the shield nozzle;
and the printing unit is used for outputting the printing data according to the triggering parameters so as to finish the printing of the image to be printed.
According to the inkjet printing method for dynamically adjusting printing precision provided by the embodiment 2 of the invention, when the image precision of an image to be printed is larger than the nozzle precision, the rotation angle of the nozzle is determined according to the image precision of the image to be printed and the nozzle parameters; according to the rotation angle of the spray head, the spray head is controlled to rotate, so that the dynamic adjustment of the printing precision of the spray head according to the image precision is realized, the spray head does not rotate when the image precision to be printed is low, the ink is saved, the spray head rotates when the image precision to be printed is high, and the printing precision is improved; secondly, according to the rotation angle of the spray head, adjusting printing parameters; and printing the image to be printed through the rotated spray head according to the printing parameters, so that the spray head can be ensured to print normally after rotating, and the quality of a printed product is ensured.
Example 3
In addition, the inkjet printing method of dynamically adjusting the printing accuracy of the embodiment of the present invention described in connection with fig. 1 may be implemented by an inkjet printing apparatus of dynamically adjusting the printing accuracy. Fig. 8 is a schematic diagram showing a hardware configuration of an inkjet printing apparatus for dynamically adjusting printing accuracy according to an embodiment of the present invention.
An inkjet printing apparatus for dynamically adjusting printing accuracy may include a processor and a memory storing computer program instructions.
In particular, the processor may comprise a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrate Circuit, ASIC), or may be configured as one or more integrated circuits that implement embodiments of the present invention.
The memory may include mass storage for data or instructions. By way of example, and not limitation, the memory may comprise a 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. The memory may include removable or non-removable (or fixed) media, where appropriate. The memory may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory is a non-volatile solid state memory. In a particular embodiment, the memory 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 reads and executes the computer program instructions stored in the memory to implement any of the nozzle abnormality compensation methods of the above embodiments.
In one example, an inkjet printing device that dynamically adjusts print accuracy may also include a communication interface and a bus. The processor, the memory, and the communication interface are connected by a bus and complete communication with each other as shown in fig. 8.
The communication interface is mainly used for realizing communication among the modules, the devices, the units and/or the equipment in the embodiment of the invention.
The bus includes hardware, software, or both, that couple components of the inkjet printing apparatus that dynamically adjust printing accuracy to each other. By way of example, and not limitation, the buses 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. The bus 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 combination with the inkjet printing method for dynamically adjusting printing accuracy in the above embodiment, the embodiment 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 a processor, implement an inkjet printing method that dynamically adjusts printing accuracy in any of the above embodiments.
In summary, according to the inkjet printing method capable of dynamically adjusting printing precision provided by the embodiment of the invention, when the image precision of the image to be printed is greater than the nozzle precision, the nozzle rotation angle is determined according to the image precision of the image to be printed and the nozzle parameters; according to the rotation angle of the spray head, the spray head is controlled to rotate, so that the dynamic adjustment of the printing precision of the spray head according to the image precision is realized, the spray head does not rotate when the image precision to be printed is low, the ink is saved, the spray head rotates when the image precision to be printed is high, and the printing precision is improved; secondly, according to the rotation angle of the spray head, adjusting printing parameters; and printing the image to be printed through the rotated spray head according to the printing parameters, so that the spray head can be ensured to print normally after rotating, and the quality of a printed product is ensured.
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. However, the method processes of the present invention are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, 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. However, 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 (10)
1. An inkjet printing method for dynamically adjusting printing accuracy, the method comprising:
when the image precision of the image to be printed is larger than the nozzle precision, determining the nozzle rotation angle according to the image precision of the image to be printed and the nozzle parameters;
controlling the spray head to rotate according to the spray head rotation angle;
adjusting printing parameters according to the rotation angle of the spray head;
and printing the image to be printed through the rotated spray head according to the printing parameters.
2. The inkjet printing method according to claim 1, wherein determining the inkjet rotation angle according to the image precision of the image to be printed and the inkjet parameters when the image precision of the image to be printed is greater than the inkjet precision comprises:
when the image precision of the image to be printed is larger than the nozzle precision, acquiring nozzle parameters, wherein the nozzle parameters comprise the distance between adjacent nozzles;
and acquiring the rotation angle of the spray head according to the precision of the image to be printed and the distance between the adjacent nozzles.
3. The method according to claim 2, wherein controlling the rotation of the head according to the rotation angle of the head comprises:
calculating a nozzle superposition angle, wherein the nozzle superposition angle is an angle at which the ink outlet positions of the nozzles are superposed after the nozzle rotates by the nozzle superposition angle;
when the rotation angle of the spray head is equal to the superposition angle of the spray nozzles, the rotation angle of the spray head is increased by a preset angle;
and controlling the spray head to rotate the spray head rotation angle towards a preset direction.
4. The method according to claim 3, wherein the nozzle parameters further comprise a nozzle row pitch, and the adjusting the printing parameters according to the nozzle rotation angle comprises:
acquiring shielding nozzle position information according to the nozzle row spacing and the nozzle rotation angle;
calculating the ink outlet delay time of each nozzle according to the rotation angle of the spray head and the position information of the shielding nozzle;
and setting a triggering parameter of each nozzle according to the ink outlet delay time of each nozzle, so as to change the ink outlet time of the nozzle.
5. The method according to claim 4, wherein the step of obtaining shielding nozzle position information according to the nozzle row pitch and the head rotation angle comprises:
calculating the end position of the front shielding nozzle and the start position of the rear shielding nozzle of each row of nozzles according to the rotation angle of the spray head;
and determining the shielding nozzle position information of each row according to the front shielding nozzle end position and the rear shielding nozzle start position of each row of nozzles.
6. The inkjet printing method according to claim 4 wherein the ink discharge delay time is calculated by:
the ink outlet delay time of the nozzle in the ith row is Ti= (i-1) d sin alpha/V, wherein i is a positive integer greater than or equal to 1, d is the interval between adjacent nozzles, alpha is the rotation angle of the spray head, and V is the moving speed of the printing medium.
7. The method according to any one of claims 4 to 6, wherein printing the image to be printed by the rotated nozzle according to the printing parameters comprises:
rasterizing the image to be printed to obtain print data;
recording a nozzle corresponding to the shielding nozzle position information as a shielding nozzle, distributing non-ink-discharge data to the shielding nozzle, and distributing the printing data to nozzles except the shielding nozzle;
and outputting the printing data to finish printing the image to be printed.
8. An inkjet printing apparatus for dynamically adjusting printing accuracy, the apparatus comprising:
the spray head rotation angle determining module is used for determining the spray head rotation angle according to the image precision of the image to be printed and the spray head parameters when the image precision of the image to be printed is greater than the spray head precision;
the spray head rotating module is used for controlling the spray head to rotate according to the spray head rotating angle;
the printing parameter adjusting module is used for adjusting printing parameters according to the rotation angle of the spray head;
and the printing module is used for printing the image to be printed through the rotated spray head according to the printing parameters.
9. An inkjet printing apparatus for dynamically adjusting printing accuracy, 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 1-7.
10. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1-7.
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| CN202210082361.XA CN116512788A (en) | 2022-01-24 | 2022-01-24 | Ink-jet printing method, device, equipment and medium for dynamically adjusting printing precision |
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| CN202210082361.XA CN116512788A (en) | 2022-01-24 | 2022-01-24 | Ink-jet printing method, device, equipment and medium for dynamically adjusting printing precision |
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Address after: 518000 a201-a301, building a, Sino German European Industrial Demonstration Park, Hangcheng Avenue, guxing community, Xixiang street, Bao'an District, Shenzhen, Guangdong Applicant after: Shenzhen Hansen Software Co.,Ltd. Address before: 518000 a201-a301, building a, Sino German European Industrial Demonstration Park, Hangcheng Avenue, guxing community, Xixiang street, Bao'an District, Shenzhen, Guangdong Applicant before: SHENZHEN HOSONSOFT Co.,Ltd. |