CN115476588A - Method, device and equipment for optimizing nozzle driving waveform and storage medium - Google Patents
Method, device and equipment for optimizing nozzle driving waveform and storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
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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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04508—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at correcting other parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04535—Control methods or devices therefor, e.g. driver circuits, control circuits involving calculation of drop size, weight or volume
Abstract
The invention belongs to the technical field of industrial printing, solves the technical problems that in the prior art, ink jet is abnormal due to insufficient ink jet capacity or short duration time, and the effect of printing images is influenced, and provides a method, a device, equipment and a storage medium for optimizing a nozzle driving waveform. The optimization method of the nozzle driving waveform comprises the steps of adjusting the initial driving waveform according to state information of ink drops sprayed by the initial driving waveform driving nozzle to obtain a transition driving waveform, and optimizing a middle wave band of the transition driving waveform to obtain a target driving waveform. The invention also provides a device, equipment and a printing medium for executing the method. According to the invention, the driving waveform of the nozzle is adjusted according to the actual state information of the ink drop, so that the target driving waveform which can enable the ink drop sprayed by the nozzle to reach the preset position is obtained, and the effect of printing the image is ensured.
Description
Technical Field
The invention relates to the technical field of industrial printing, in particular to a method, a device, equipment and a storage medium for optimizing a nozzle driving waveform.
Background
The ink jet printing technology is that the printer forms images or characters by controlling the movement of a nozzle, and the nozzle of the nozzle performs ink jet printing on a printing medium in the process of moving along with the nozzle.
In the prior art, when the nozzle performs ink jet printing according to a preset driving waveform, the nozzle immediately enters an ink jet state after ink absorption is completed, so that the problems of ink drop ejection failure, insufficient ejection energy or ink drop fault and the like are caused due to insufficient capacity or short duration time during ink jet.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, a device, and a storage medium for optimizing a driving waveform of a nozzle, so as to solve the technical problem in the prior art that an inkjet is abnormal and an image printing effect is affected due to insufficient inkjet capability or short duration.
The technical scheme adopted by the invention is as follows:
the invention provides a method for optimizing a spray head driving waveform, which comprises the following steps:
s1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
s2: adjusting the initial driving waveform according to the state information to obtain a transition driving waveform;
s3: optimizing a middle waveband in the transition driving waveform to obtain a target driving waveform;
wherein the transition driving waveform is a waveform that designates an intermediate band and/or adds the intermediate band as an energy-adjusting band in the initial driving waveform.
Preferably, the S1 includes:
s11: acquiring a motion track of the ink drop;
s12: obtaining real-time position information of the ink drop according to the motion track;
s13: and obtaining the state information according to the position information and the ink drop volume corresponding to the position information.
Preferably, the S13 includes:
s131: according to the motion trail, the landing position and the initial position of the ink drop are obtained;
s132: obtaining the position offset of the ink drop according to the drop point position and the initial position;
s133: obtaining loss information of the ink drop according to the difference value between the volume of the ink drop at the drop point position and the volume of the ink drop corresponding to the initial position;
s134: and obtaining the state information according to the position offset, the loss information and the motion trail.
Preferably, said S2 comprises;
s21: acquiring the corresponding state information of the ink drop at the position of the drop point;
s22: and adjusting the peak value of the energy-adjusting wave band of the initial driving waveform at least once according to the state information to obtain a plurality of transitional driving waveforms corresponding to the adjustment times.
Preferably, when a moving distance corresponding to an actual landing position of the ink droplet in the moving direction of the head is smaller than a preset distance, the S22 includes:
s221: taking the state information of the ink droplet corresponding to the initial driving waveform as first state information;
s222: and increasing the energy-adjusting wave band for the initial driving waveform according to the first state information to obtain a first transition driving waveform.
Preferably, the S222 includes:
s2221: acquiring initial peak time and initial valley time of an initial driving waveform;
s2222: and setting the wave crest and the frequency of the energy-adjusting wave band by combining the initial wave crest time and the initial wave trough time according to the state information to obtain a first transition driving waveform.
Preferably, in said S3;
s31: acquiring all the transitional driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
The present invention also provides a printing apparatus, comprising:
a data acquisition module: the ink jet head is used for acquiring state information of ink drops obtained by driving the nozzle to jet ink by the initial driving waveform;
a data processing module: the initial driving waveform is adjusted according to the state information to obtain a transition driving waveform;
a data optimization module: the intermediate wave band in the transitional driving waveform is optimized to obtain a target driving waveform;
wherein the transition driving waveform is a waveform that designates an intermediate band and/or adds the intermediate band as an energy-adjusting band in the initial driving waveform.
The present invention also provides a printing apparatus comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of the above.
The present invention also provides a storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of any one of the above.
In conclusion, the beneficial effects of the invention are as follows:
according to the optimization method, the device and the equipment for the driving waveform of the spray head and the storage medium, the driving waveform is adjusted for multiple times through the state information of the sprayed ink drop, and the adjusted driving waveform is optimized to obtain a target driving waveform actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without making creative efforts, other drawings can be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic flowchart of a method for optimizing a showerhead driving waveform according to embodiment 1 of the present invention;
FIG. 1-1 is a schematic view of an initial print driving waveform in embodiment 1 of the present invention;
FIGS. 1-2 are schematic diagrams of target print drive waveforms in embodiment 1 of the present invention;
fig. 2 is a schematic flow chart of the ink droplet state in the method of optimizing the head driving waveform in embodiment 1 of the present invention;
FIG. 3 is a schematic flow chart showing the real-time status of ink droplets in the method for optimizing the driving waveform of the head in embodiment 1 of the present invention;
fig. 4 is a schematic flow chart of waveform adjustment of a method for optimizing a showerhead driving waveform according to embodiment 1 of the present invention;
fig. 5 is a schematic flowchart of a first transition driving waveform of a method for optimizing a showerhead driving waveform according to embodiment 1 of the present invention;
fig. 6 is a schematic flow chart of the peak-to-valley duration of the driving waveform of the method for optimizing the driving waveform of the nozzle in embodiment 1 of the present invention;
fig. 7 is a schematic flowchart of a target driving waveform of a method for optimizing a driving waveform of a showerhead in embodiment 1 of the present invention;
FIG. 8 is a block diagram showing the construction of a printing apparatus according to embodiment 2 of the present invention;
fig. 9 is a schematic configuration diagram of a printing apparatus in embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element. In case of conflict, it is intended that the embodiments of the present invention and the individual features of the embodiments may be combined with each other within the scope of the present invention.
Example 1
Referring to fig. 1, fig. 1 provides a method for optimizing a driving waveform of a showerhead according to embodiment 1 of the present invention, the method including:
s1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
specifically, the printer sets corresponding initial driving waveforms for the nozzles of each signal before leaving the factory, when preparing to print, the nozzles are driven by the initial driving waveforms to perform ink jet printing, ink jet ink droplets are monitored, and the overall process information that the ink droplets finally fall onto a printing medium is obtained, wherein the ink droplet state information at least comprises one of the following information: the trajectory of the ink drop and the volume of the ink drop.
S2: adjusting the initial driving waveform according to the state information to obtain a transition driving waveform;
specifically, according to the state information of the ink drops, the difference between the ink drops obtained under the driving of the initial driving waveform and the printing requirement is determined, the difference is the comparison difference between the energy state changes of the ink drops driven by the initial driving waveform and the initial driving waveform, so that the adjustment parameters of the initial driving waveform are determined to obtain a transition driving waveform, and the adjustment of the initial driving waveform at least comprises one of the following steps: the intermediate band that can adjust the driving waveform energy is set in the initial driving waveform, and this band is referred to herein as an energy-adjusted band, and this intermediate band may be an original band of the initial driving waveform, or a newly added band, and is not specifically limited here.
S3: optimizing a middle waveband in the transition driving waveform to obtain a target driving waveform;
wherein the transition driving waveform is a waveform that designates an intermediate band and/or adds the intermediate band as an energy-adjusting band in the initial driving waveform.
Specifically, according to state information corresponding to actual drop points of the ink droplets, the lost energy and the offset position of the ink droplets in the air movement process are determined, if the drop point positions of the ink droplets are before the preset positions (the distance of the ink droplets along the moving direction of the sprayer is greater than the preset distance), the energy-adjusting wave bands are wave band parts selected in the initial driving waveform, it is indicated that the kinetic energy of the ink droplets is too large when the ink droplets are discharged from the nozzle, and if the drop point positions of the ink droplets are after the preset positions, it is indicated that the kinetic energy of the ink droplets is too small when the ink droplets are discharged from the nozzle (the distance of the ink droplets along the moving direction of the sprayer is less than the preset distance), the energy-adjusting wave bands are wave band parts added in the initial driving waveform; adjusting the amplitude and/or frequency of the intermediate-period waveform at least once, obtaining a test driving waveform once adjusting, performing test printing, and if the test driving waveform does not meet the requirement, adjusting again until a target waveform is obtained; referring to fig. 1-1, an x direction of fig. 1-1 is a time parameter, a y direction is a voltage parameter, a first waveform is an initial driving waveform preset by a system, and a second waveform is an actual driving waveform formed by energy curve feedback of an ink droplet ejected by a nozzle under the driving of the initial driving waveform, it can be understood that, under other factors, the driving conversion effect of the initial driving waveform on the ink droplet and a C point is a conversion voltage for ejecting the ink droplet are provided, as can be seen from fig. 1-1, the conversion voltage of the C point is lower than a preset voltage, which is caused by energy consumption such as wind resistance in an ink ejection process. Therefore, the frequency and/or amplitude of the initial driving waveform are adjusted, further, please refer to fig. 1-2, according to the duration time of the initial driving waveform, a peak is added in the driving waveform, so that the duration time is increased, electric energy is increased in the preparation stage of ink jet, so that the ink drop can obtain larger kinetic energy, such as the position of a point B, the actual driving voltage is greater than the preset voltage at the moment of ink jet, so that the ink drop can obtain larger initial kinetic energy, thereby sufficiently offsetting the wind resistance and loss of the ink drop in the moving process, and enabling the ink drop to fall into the designated position.
It should be noted that: the middle band includes not only 1 peak, but also a plurality of peaks, and the peaks of the peaks may be the same or different.
In an embodiment, after S3, the method further includes:
and storing the target driving waveform and/or controlling a spray head to perform ink jet printing according to the target driving waveform.
By adopting the optimization method of the nozzle driving waveform of the embodiment, the driving waveform is adjusted for multiple times through the state information of the ejected ink drop, and the adjusted driving waveform is optimized to obtain the target driving waveform actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
In one embodiment, as shown in fig. 2, the S1 includes:
s11: acquiring a motion track of the ink drop;
specifically, a CCD camera or other imaging equipment is adopted to obtain the motion track of the ink drop in the process of being ejected from a nozzle to the position of a drop point.
S12: obtaining real-time position information of the ink drop according to the motion track;
in particular, the position information of the ink drop at any one time can be determined by the movement trajectory.
S13: and obtaining the state information according to the position information and the volume of the ink drop corresponding to the position information.
Specifically, the position information of the ink drop at any moment and the volume of the ink drop at any position are obtained to obtain real-time state information, and the state information can be understood as the position information of the ink drop at the position compared with the preset position, the volume difference between the initial volume and the actual volume of the ink drop, the volume difference between the preset volume and the actual volume at the position, and the difference between the kinetic energy of the ink drop at the position and the predicted kinetic energy.
By acquiring the state information of any position of the ink drop, the energy loss of the ink drop in the movement process can be obtained, so that the adjustment of the driving waveform is guided, and the drop point position of the ink drop is ensured to be a preset position.
In one embodiment, as shown in fig. 3, the S13 includes:
s131: obtaining the drop point position and the initial position of the ink drop according to the motion track;
specifically, a drop point position and an initial position of the ink drop are obtained according to the actual motion track of the captured ink drop, the initial position is a coordinate position corresponding to the instant when the ink drop is ejected from the nozzle, and the drop point position is a coordinate position which is in the same coordinate system as the initial position when the ink drop falls into the printing medium.
S132: obtaining the position offset of the ink drop according to the drop point position and the initial position;
specifically, the drop point position of the ink drop is compared with a preset drop point position to obtain a drop point offset position of the ink drop, and the initial offset position of the ink drop is obtained according to the initial position of the ink drop and the preset initial position; determining the position offset of the ink drop according to the initial offset position and the drop point offset position; such as: setting the initial offset position of the ink drop to be 1mm behind, setting the offset position of the drop point to be 1mm behind, and setting the position offset to be 0; the initial offset position of the ink drop is set to be 1mm behind, the drop point offset position is set to be 1.1mm behind, and the position offset is 0.1mm.
S133: obtaining loss information of the ink drop according to the difference value between the ink drop volume at the drop point position and the ink drop volume corresponding to the initial position;
s134: and obtaining the state information according to the position offset, the loss information and the motion track.
Specifically, the loss of the ink drop volume, namely the loss information of the ink drop, is obtained according to the actual volume of the ink drop at the drop point position and the volume of the initial ink drop; then, based on the position deviation amount, the loss information, and the motion trajectory, the state information of the ink drop at any time, that is, the information of the ink drop volume, speed, motion direction, and the like can be obtained.
The external factors and the internal factors of the ink drop movement can be accurately obtained through the state information of the actual movement of the ink drop, and then the driving waveform is correspondingly adjusted, so that the effect of printing an image is ensured.
In one embodiment, as shown in fig. 4, the S2 includes;
s21: acquiring the corresponding state information of the ink drop at the position of the drop point;
specifically, the state information of the final landing point of the ink droplet, that is, the landing point position and the ink droplet volume of the ink droplet, is acquired.
S22: adjusting the peak value of the energy-adjusting wave band of the preset driving waveform at least once according to the state information to obtain a plurality of transitional driving waveforms corresponding to the adjusting times;
the energy-adjusting wave band is a wave band part selected in the initial driving waveform and/or a wave band part newly added in the initial driving waveform.
Specifically, according to state information corresponding to actual drop points of the ink droplets, the lost energy and the offset position of the ink droplets in the air movement process are determined, if the drop point positions of the ink droplets are before the preset positions (the distance of the ink droplets along the moving direction of the sprayer is greater than the preset distance), the energy-adjusting wave bands are wave band parts selected in the initial driving waveform, it is indicated that the kinetic energy of the ink droplets is too large when the ink droplets are discharged from the nozzle, and if the drop point positions of the ink droplets are after the preset positions, it is indicated that the kinetic energy of the ink droplets is too small when the ink droplets are discharged from the nozzle (the distance of the ink droplets along the moving direction of the sprayer is less than the preset distance), the energy-adjusting wave bands are wave band parts added in the initial driving waveform; and then adjusting the peak value of the energy-exchanging wave band at least once to obtain a transitional driving waveform, so that the kinetic energy of the ink drop after the ink drop is discharged out of the nozzle is adjusted, and the ink drop is ensured to reach the designated position.
In an embodiment, as shown in fig. 5, when a moving distance corresponding to an actual landing position of an ink droplet in a moving direction of the head is smaller than a preset distance, the S22 includes:
s221: taking the state information of the ink drop corresponding to the initial driving waveform as first state information;
s222: and increasing the energy-adjusting wave band for the initial driving waveform according to the first state information to obtain a first transition driving waveform.
Specifically, the driving waveform corresponding to the ink drop is adjusted according to the state information corresponding to the drop point position of the ink drop, specifically, the amplitude or the duration of a newly added energy-adjusting wave band in the driving waveform is adjusted, so that the ink drop finally sprayed out by a nozzle can reach the specified position, the debugging is repeated for multiple times, a new driving waveform is obtained after each debugging, and then the testing printing is carried out; during the first adjustment, an energy modulation wave band is added in the initial driving waveform, and the energy modulation wave band is adjusted from the second adjustment. As shown in fig. 1-2, the band of the energy modulation at the position of the a point is adjusted.
In one embodiment, as shown in fig. 6, the S222 includes:
s2221: acquiring initial peak time and initial valley time of an initial driving waveform;
s2222: and setting the wave crest and the frequency of the energy-adjusting wave band by combining the initial wave crest time and the initial wave trough time according to the state information to obtain a first transition driving waveform.
Specifically, when the initial driving waveform is directly adjusted for the first time, the peak time and the trough time of the initial driving waveform are set as the duration of an energy-adjusting waveband, and are used as the peak value and the frequency of the energy-adjusting waveband, so as to obtain a new driving waveform, and the driving waveform is used as a first transitional driving waveform; and subsequent transitional driving waveforms are obtained by adjusting the peak value and/or the frequency of the energy-adjusting wave band on the basis of the first driving waveform.
In one embodiment, as shown in fig. 7, in S3;
s31: acquiring all the transitional driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
Specifically, the landing position of the ink drop has an area range, which can be understood as that the effect of printing an image meets the printing requirement as long as the ink drop falls into the designated range, and the target driving waveform is output by fitting according to a plurality of adjusted driving waveforms corresponding to the plurality of ink drops falling into the designated range; and fitting the obtained target driving waveform to obtain that the amplitude voltage of the energy-adjusting wave band is the best 1/2 of the maximum amplitude voltage of the driving waveform.
By adopting the optimization method of the nozzle driving waveform of embodiment 1, the driving waveform is adjusted for multiple times according to the state information of the ejected ink droplet, and the adjusted driving waveform is optimized to obtain the target driving waveform actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
Example 2
The present invention also provides a printing apparatus, as shown in fig. 8, including:
a data acquisition module: the ink jet head is used for acquiring state information of ink drops obtained by driving the nozzle to jet ink by the initial driving waveform;
a data processing module: the initial driving waveform is adjusted according to the state information to obtain a transition driving waveform;
the data optimization module: and the intermediate wave band in the transition driving waveform is optimized to obtain a target driving waveform.
By adopting the printing device of the embodiment, the driving waveform is adjusted for multiple times through the state information of the ejected ink drop, and the adjusted driving waveform is optimized to obtain the actual target driving waveform for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
In one embodiment, the data acquisition module comprises:
a motion trail unit: acquiring a motion track of the ink drop;
an ink droplet position unit: obtaining real-time position information of the ink drop according to the motion track;
an ink droplet state unit: and obtaining the state information according to the position information and the volume of the ink drop corresponding to the position information.
By acquiring the state information of any position of the ink drop, the energy loss of the ink drop in the movement process can be obtained, so that the adjustment of the driving waveform is guided, and the drop point position of the ink drop is ensured to be a preset position.
In one embodiment, the droplet status unit includes:
a real-time location unit: obtaining the drop point position and the initial position of the ink drop according to the motion track;
a position shift unit: obtaining loss information of the ink drop according to the difference value between the ink drop volume at the drop point position and the ink drop volume corresponding to the initial position;
an ink droplet loss unit: obtaining loss information of the ink drop according to the volume of the ink drop corresponding to the drop point position and the initial position;
an actual state unit: and obtaining the state information according to the position offset, the loss information and the motion trail.
The external factors and the internal factors of the ink drop movement can be accurately obtained through the state information of the actual movement of the ink drop, and then the driving waveform is correspondingly adjusted, so that the effect of printing an image is ensured.
In one embodiment, the data processing module comprises;
a falling point state unit: acquiring state information corresponding to the drop point position of the ink drop;
transition waveform unit: adjusting the peak value of the energy-adjusting wave band of the preset driving waveform at least once according to the state information to obtain a plurality of transitional driving waveforms corresponding to the adjusting times;
the energy-adjusting wave band is a wave band part selected from an original driving waveform and/or a wave band part newly added from the original driving waveform.
In one embodiment, when a moving distance corresponding to an actual landing position of an ink droplet in a moving direction of the head is smaller than a preset distance, the transition waveform unit includes:
unit state cell: acquiring the state information of the ink drop corresponding to the initial driving waveform as first state information;
unit waveform unit: and increasing the energy-adjusting wave band for the initial driving waveform according to the first state information to obtain a first transition driving waveform.
In one embodiment, the unit waveform unit includes:
a waveform parameter unit: acquiring initial peak time and initial valley time of an initial driving waveform;
a waveform processing unit: and setting the wave crest and the frequency of the energy-adjusting wave band by combining the initial wave crest time and the initial wave trough time according to the state information to obtain a first transition driving waveform.
In one embodiment, in the data optimization module;
a waveform acquisition unit: acquiring a plurality of transition drive waveforms;
a waveform fitting unit: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
The print driving waveform optimizing apparatus of embodiment 2 is used to adjust the driving waveform a plurality of times based on the state information of the ejected ink droplets, and optimize the adjusted driving waveform to obtain a target driving waveform actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
Example 3
In particular, the processor may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits that may be configured to implement embodiments of the present invention.
The memory may include mass storage for data or instructions. By way of example, and not limitation, memory may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. 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 non-volatile solid-state memory. In a particular embodiment, the memory includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically Alterable ROM (EAROM), or flash memory, or a combination of two or more of these.
The processor reads and executes the computer program instructions stored in the memory to implement the method for optimizing the driving waveform of the ejection head according to any one of the embodiments 1.
In one example, the printing device may also include a communication interface and a bus. The processor, the memory and the communication interface are connected through a bus and complete mutual communication.
The communication interface is mainly used for realizing communication among modules, devices, units and/or equipment in the embodiment of the invention.
The bus includes hardware, software, or both that couple the components of the printing device to one another. By way of example, and not limitation, a bus 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 these. A bus may include one or more buses, where appropriate. Although specific buses have been described and illustrated with respect to embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
In summary, the embodiments of the present invention provide a method, an apparatus, a device, and a storage medium for optimizing a driving waveform of a nozzle. Adjusting the driving waveform for multiple times according to the state information of the ejected ink drop, and optimizing the adjusted driving waveform to obtain a target driving waveform actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the designated printing position according to the preset track, and the effect of printing the image is ensured.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as 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, plug-in, 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 by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, 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 so forth. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of optimizing a showerhead drive waveform, the method comprising:
s1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
s2: adjusting the initial driving waveform according to the state information to obtain a transition driving waveform;
s3: optimizing a middle wave band in the transitional driving waveform to obtain a target driving waveform;
wherein the transition driving waveform is a waveform that designates an intermediate band and/or adds the intermediate band as an energy-adjusting band in the initial driving waveform.
2. The method of optimizing a showerhead drive waveform of claim 1, wherein the S1 comprises:
s11: acquiring a motion track of the ink drop;
s12: obtaining real-time position information of the ink drop according to the motion track;
s13: and obtaining the state information according to the position information and the volume of the ink drop corresponding to the position information.
3. The method for optimizing the head driving waveform of claim 2, wherein the S13 includes:
s131: obtaining the drop point position and the initial position of the ink drop according to the motion track;
s132: obtaining the position offset of the ink drop according to the landing position and the initial position;
s133: obtaining loss information of the ink drop according to the difference value between the volume of the ink drop at the drop point position and the volume of the ink drop corresponding to the initial position;
s134: and obtaining the state information according to the position offset, the loss information and the motion trail.
4. The method of optimizing showerhead drive waveforms of claim 3, wherein the S2 comprises;
s21: acquiring the corresponding state information of the ink drop at the position of the drop point;
s22: and adjusting the peak value of the energy-adjusting wave band corresponding to the initial driving waveform at least once according to the state information to obtain a plurality of transitional driving waveforms corresponding to the adjustment times.
5. The method for optimizing head driving waveforms according to claim 4, wherein when a moving distance corresponding to an actual landing position of an ink droplet in a moving direction of the head is smaller than a preset distance, the S22 includes:
s221: taking the state information of the ink droplet corresponding to the initial driving waveform as first state information;
s222: and increasing the energy-adjusting wave band for the initial driving waveform according to the first state information to obtain a first transition driving waveform.
6. The method of optimizing a showerhead drive waveform of claim 5, wherein the S222 comprises:
s2221: acquiring initial peak time and initial valley time of an initial driving waveform;
s2222: and setting the wave crest and the frequency of the energy-adjusting wave band by combining the initial wave crest time and the initial wave trough time according to the state information to obtain a first transition driving waveform.
7. The optimizing method of a head drive waveform according to any one of claims 4 to 6, wherein in the S3;
s31: acquiring all the transitional driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
8. A printing apparatus, comprising:
a data acquisition module: the ink jet head is used for acquiring state information of ink drops obtained by driving the nozzle to jet ink by the initial driving waveform;
a data processing module: the initial driving waveform is adjusted according to the state information to obtain a transition driving waveform;
a data optimization module: the intermediate wave band in the transitional driving waveform is optimized to obtain a target driving waveform;
wherein the transition driving waveform is a waveform that designates an intermediate band and/or adds the intermediate band as an energy-adjusting band in the initial driving waveform.
9. A printing apparatus, 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 computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-7.
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| CN115476588B (en) | 2024-04-23 |
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