CN115476606A - Ink jet printing control method, control device and storage medium - Google Patents
Ink jet printing control method, control device and storage medium Download PDFInfo
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- CN115476606A CN115476606A CN202211011835.8A CN202211011835A CN115476606A CN 115476606 A CN115476606 A CN 115476606A CN 202211011835 A CN202211011835 A CN 202211011835A CN 115476606 A CN115476606 A CN 115476606A
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- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000007641 inkjet printing Methods 0.000 title claims abstract description 42
- 238000003860 storage Methods 0.000 title claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 49
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000002310 reflectometry Methods 0.000 claims abstract description 16
- 238000007639 printing Methods 0.000 claims description 49
- 238000005507 spraying Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000976 ink Substances 0.000 description 91
- 238000010304 firing Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 230000008859 change Effects 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000002085 persistent effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
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- 238000010023 transfer printing Methods 0.000 description 1
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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
- B41J2/07—Ink jet characterised by jet control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/01—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for special character, e.g. for Chinese characters or barcodes
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Abstract
The embodiment of the application discloses an ink-jet printing control method, a control device and a storage medium, which can perform ink-jet compensation on the width of a bar in a one-dimensional bar code, improve the quality grade of the bar code and improve the production quality and the production qualified rate of the one-dimensional bar code. The ink jet printing control method includes: acquiring the current ignition frequency of a nozzle in the ink-jet printing process, wherein the nozzle is used for jetting ink in the ink-jet printing process; determining a current ink jet offset value corresponding to the current ignition frequency according to the corresponding relation between the ignition frequency of the spray head and the ink jet offset value, wherein the ink jet offset value is the position offset corresponding to the drop point of the ink drop caused by different ink drop speeds during ink jet; and when the current ink jet deviation value is greater than a preset deviation threshold value and the width size of the bar code of the one-dimensional bar code is less than or equal to the preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of a bar in the one-dimensional bar code, wherein the bar is a part with low reflectivity in the one-dimensional bar code.
Description
Technical Field
The application relates to the technical field of inkjet digital printing, in particular to an inkjet printing control method, a control device and a storage medium.
Background
The one-dimensional bar code, also called bar code or bar code, is composed of a group of rectangular bars with low reflectivity, which are arranged at intervals and are parallel; these low reflectivity bars (e.g., black) are referred to as "bars" and the high reflectivity void portions (e.g., white) between the bars are referred to as "voids". The widths of bars and spaces in the one-dimensional bar code are based on the most basic 'module width', namely the widths of all the bars and spaces are integral multiples of the width of the module (1 time, 2 times, 3 times, 4 times and the like, and particularly accord with the bar code coding specification), and the bars and spaces with specific widths are combined according to a certain coding rule to express the required information.
When the one-dimensional bar code is printed by high-speed ink jet, a ladder typesetting mode (as shown in figure 2 below) is generally adopted for printing, and even if spray orifices of a spray head are accidentally blocked and obliquely sprayed, the quality grade of the bar code is not easily reduced, so that the method is generally applied. When the running speed of the printing medium exceeds a certain speed, if the width of the bar code is small, namely the width of each module is small, the bar code is easy to be low in grade and even cannot be read.
Disclosure of Invention
In view of the above, it is necessary to provide an inkjet printing control method, a control apparatus, and a storage medium, which can perform inkjet compensation on the width of a bar in a one-dimensional barcode, improve the quality level of the barcode, and improve the production quality and production yield of the one-dimensional barcode.
In a first aspect, the present application provides an inkjet printing control method including:
in the ink-jet printing process, acquiring the current ignition frequency of a spray head, wherein the spray head is used for spraying ink in the ink-jet printing process;
determining a current ink jet offset value corresponding to the current ignition frequency according to the corresponding relation between the ignition frequency of the spray head and the ink jet offset value, wherein the ink jet offset value is the position offset corresponding to ink drop points caused by different ink drop speeds during ink jet;
and when the current ink jet offset value is larger than a preset offset threshold value and the width size of the bar code of the one-dimensional bar code is smaller than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of a bar in the one-dimensional bar code, wherein the bar is a part with low reflectivity in the one-dimensional bar code.
Optionally, in a possible implementation manner of the first aspect, when the current inkjet offset value is greater than the predetermined offset threshold and the barcode width size of the one-dimensional barcode is less than or equal to the predetermined barcode width threshold, controlling the nozzle to perform inkjet compensation on the bars in the one-dimensional barcode, includes:
when the current ink jet offset value is larger than a preset offset threshold value, determining whether one-dimensional bar codes printed by ladder typesetting exist in the printing contents printed by ink jet;
if the one-dimensional bar code exists, when the width size of the bar code of the one-dimensional bar code is smaller than or equal to the preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the bar with the width smaller than the preset bar width value in the one-dimensional bar code.
Optionally, in a possible implementation manner of the first aspect, the preset bar width value is a module width, or a module width that is 2 times as wide as the module width, where the module width is a minimum basic width unit corresponding to a width of a bar in the one-dimensional barcode.
Optionally, in a possible implementation manner of the first aspect, the inkjet compensating the bars in the one-dimensional barcode includes:
determining a printing position corresponding to a bar in the one-dimensional bar code according to the printing data of the one-dimensional bar code;
and controlling the spray head to spray ink at an empty position before the printing position corresponding to the bar, wherein the empty position is a part with high reflectivity in the one-dimensional bar code.
Optionally, in a possible implementation manner of the first aspect, a width of a bar in the one-dimensional barcode after ink-jet compensation is less than or equal to a theoretical width of the bar.
Optionally, in a possible implementation manner of the first aspect, the correspondence between the firing frequency of the nozzle and the inkjet offset value is a table of correspondence between the firing frequency and the inkjet offset value; determining a current ink jet offset value corresponding to the current ignition frequency according to the corresponding relationship between the ignition frequency of the spray head and the ink jet offset value, wherein the method comprises the following steps:
and searching in a corresponding relation table of the ignition frequency and the ink jet offset value by using the current ignition frequency to obtain the current ink jet offset value.
Optionally, in a possible implementation manner of the first aspect, the obtaining a current ignition frequency of the nozzle includes:
and calculating the current ignition frequency of the spray head according to the running speed of the printing medium and the printing resolution of the spray head.
In a second aspect, the present application provides a control apparatus comprising:
the device comprises an acquisition module, a determination module and an ink jet compensation module;
in the ink-jet printing process, the acquisition module acquires the current ignition frequency of a nozzle, wherein the nozzle is used for jetting ink in the ink-jet printing process;
the determining module determines a current ink jet offset value corresponding to the current ignition frequency according to a corresponding relation between the ignition frequency of the spray head and the ink jet offset value, wherein the ink jet offset value is a position offset corresponding to an ink drop point caused by different ink drop speeds during ink jet;
when the current ink jet offset value is larger than a preset offset threshold value and the width size of the bar code of the one-dimensional bar code is smaller than or equal to a preset bar code width threshold value, the ink jet compensation module controls the spray head to perform ink jet compensation on the width of a bar in the one-dimensional bar code, wherein the bar is a part with low reflectivity in the one-dimensional bar code.
In a third aspect, the present application provides another control apparatus, comprising: a processor and a memory, wherein the memory has executable code stored thereon;
the executable code, when executed by the processor, causes the control apparatus to perform an inkjet printing control method as described in the first aspect and any one of its implementations.
In a fourth aspect, the present application further provides a computer-readable storage medium having executable code stored thereon; the executable code, when executed by the processor, causes the control apparatus to perform the inkjet printing control method as described in the first aspect and any one of its implementations.
The technical scheme provided by the application has the following beneficial effects:
in the ink jet printing process, acquiring and determining a current ink jet offset value based on the current ignition frequency of a spray head and a corresponding relation between the ignition frequency of the spray head and the ink jet offset value which is known in advance, wherein the ink jet offset value is the position offset corresponding to ink drop points caused by different ink drop speeds during ink jet; and then, when the current ink jet offset value is greater than a preset offset threshold value and the width size of the bar code of the one-dimensional bar code is less than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of the bar in the one-dimensional bar code, so that the position deviation of the bar in the one-dimensional bar code is reduced, the quality grade of the bar code is improved, and the production quality and the production qualified rate of the one-dimensional bar code are improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic diagram of a dimension of a one-dimensional barcode in an embodiment of the present application;
FIG. 2 is a schematic diagram of a one-dimensional bar code ladder layout according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of an inkjet digital printing system;
FIG. 4 is a schematic flow chart of an inkjet printing control method according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating an effect of ink jetting compensation according to an embodiment of an ink jet printing control method;
FIG. 6 is a schematic structural diagram of a control device in the embodiment of the present application;
fig. 7 is another schematic structural diagram of the control device in the embodiment of the present application.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In order to facilitate understanding of the technical scheme of the inkjet printing control method in the embodiment of the present application, first, a simple description is made of the one-dimensional barcode and ladder typesetting printing referred to in the present application, specifically as follows:
fig. 1 is a schematic size diagram of a one-dimensional barcode in an embodiment of the present application.
The width and height of the one-dimensional bar code, and the bar modules and empty modules that make up the one-dimensional bar code are illustrated in fig. 1. Taking the CODE128C CODE as an example, one 128C CODE is composed of 145 modules, which are 145 modules no matter how large the size of the barcode is, and the 145 modules include a start character, a number area, a check CODE, and an end character of the barcode, for example, the start character is {2,1, 2,3,2}, i.e., 2 bar modules, 1 empty module, 1 bar module, 2 empty modules, 3 bar modules, and 2 empty modules, which are sequentially composed, and it can be determined that the start character of the 128C CODE is recognized after the characteristics of the 6 bars, which are different in black and white, are recognized.
The current bar code printing methods include traditional printing methods such as screen printing, offset printing, gravure printing, flexo printing, pad printing, etc., and digital printing methods widely used at present such as ink jet, laser toner, laser etching, thermal transfer printing, etc. Among them, inkjet printing is widely used because of non-contact, high speed, many types of ink, and wide application range. The ink jet technology is that a control system controls the spray holes of a spray head to spray tiny ink drops according to a certain time sequence, so that a graphic image which can be recognized by human eyes is formed; the Onepass inkjet printing technique is a technique in which image data is printed on a medium by ejecting the image data from an ejection head while the printing medium and the ejection head are moving relatively, and printing is completed in one relative movement, and therefore, the Onepass inkjet printing technique is called Onepass (also called single pass printing), and the production efficiency is high. The ladder typesetting printing mode is a common typesetting printing mode in the ink-jet technology.
Fig. 2 is a schematic diagram of a one-dimensional barcode ladder layout in the embodiment of the present application.
As shown in fig. 2, the ladder typesetting printing mode is a mode in which the width direction of the one-dimensional bar code is consistent with the paper feeding direction of the medium when the one-dimensional bar code is subjected to ink jet printing, that is, the length direction of the bar of the one-dimensional bar code is perpendicular to the paper feeding direction and parallel to the width direction of the nozzle, and the bar code is printed to be shaped like a ladder.
Next, the inkjet digital printing system in the embodiment of the present application will be described, specifically as follows:
fig. 3 is a schematic structural diagram of an inkjet digital printing system according to an embodiment of the present application.
As shown in fig. 3, the system includes an upper computer 100, a control unit 110, an encoder 120, a head fixing device 130, a head 150, ink bottles 140, driven rollers 160, power rollers 170, paper 180, and the like. Note that the sheets listed in this example may be of any ink-jet printable material, and may be a web, a single sheet of material; the upper computer and the control unit can be one or more; the encoder can be a rotary encoder, and can also be a grating, a magnetic grating and other similar products; the movement of the printed material may be by roller, belt, or any other available movement.
After the above-mentioned technical knowledge related to the present application is introduced, the inkjet printing control method in the embodiment of the present application will be described in detail below with reference to the accompanying drawings, specifically as follows:
fig. 4 is a schematic flowchart of an inkjet printing control method according to an embodiment of the present application.
As shown in fig. 4, the inkjet printing control method in the embodiment of the present application includes:
401. and acquiring the current ignition frequency of the spray head during the ink jet printing process, wherein the spray head is used for spraying ink during the ink jet printing process.
In the embodiment of the application, the current ignition frequency refers to the ignition frequency of the spray head at the current moment. It should be noted that, in practical inkjet applications, although different characteristics of the nozzles are different, as the firing frequency performance of the nozzles is designed to be higher and higher, when the nozzles jet ink droplets, the velocities of the ink droplets may have a significant deviation in different stages of the firing frequency, that is, the velocities of the ink droplets may form a wave curve as the firing frequency changes.
Optionally, in an implementation manner of the embodiment of the present application, the ignition frequency may be obtained by the following method: and calculating the current ignition frequency of the spray head according to the running speed of the printing medium and the printing resolution of the spray head.
Specifically, in conjunction with the system shown in fig. 1, when printing is started, the upper computer 100 obtains the running speed of the printing medium (e.g., paper 180) through the encoder 120, obtains the printing resolution parameter of the ejection head 150, and calculates the firing frequency of the ejection head 150 according to the obtained running speed and printing resolution.
402. And determining the current ink jet offset value corresponding to the current ignition frequency according to the corresponding relation between the ignition frequency of the spray head and the ink jet offset value.
In the embodiment of the present application, the inkjet offset value is a positional offset corresponding to a landing point of an ink droplet caused by a difference in ink droplet velocity when the ink is ejected. Details are described in table 1 and its associated parts below.
Optionally, in an implementation manner of the embodiment of the present application, a correspondence between the firing frequency of the nozzle and the inkjet offset value is a table of correspondence between the firing frequency and the inkjet offset value; determining a current ink jet offset value corresponding to the current ignition frequency according to the corresponding relationship between the ignition frequency of the spray head and the ink jet offset value, wherein the method comprises the following steps of: and searching in the corresponding relation table of the ignition frequency and the ink jet deviation value by using the current ignition frequency to obtain the current ink jet deviation value.
It should be noted that the ink ejection offset value is related to the ink drop velocity, and specifically, the ink ejection offset value is caused by the variation of the ink drop velocity, and therefore, the correspondence relationship between the firing frequency and the ink ejection offset value may be predetermined according to the correspondence relationship between the ink drop velocity and the firing frequency. The corresponding relation between the ink drop speed and the firing frequency can be changed according to different nozzles and different inks, but the ink drop speed is different according to different firing frequencies.
403. And when the current ink jet offset value is larger than a preset offset threshold value and the width size of the bar code of the one-dimensional bar code is smaller than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of the bar code in the one-dimensional bar code.
In the embodiment of the present application, as described in the relevant part of fig. 1, a bar is a part with low reflectivity in a one-dimensional barcode, and the bar may also be referred to as a bar module; correspondingly, the space is a high-reflectivity part in the one-dimensional bar code, and the space can also be called a space module. High and low reflectivity are opposite, for example, bars in a one-dimensional bar code are usually black and spaces are usually white.
Alternatively, in one implementation of the embodiments of the present application, the manner of determining whether inkjet compensation is required may be: firstly, judging whether the current ink jet offset value is larger than a preset offset threshold value, and then judging that the width size of the bar code of the one-dimensional bar code is smaller than or equal to the preset bar code width threshold value, wherein the specific steps are as follows: when the current ink jet offset value is larger than a preset offset threshold value, determining whether one-dimensional bar codes printed by ladder typesetting exist in the printing contents printed by ink jet; if the one-dimensional bar code exists, when the width size of the bar code of the one-dimensional bar code is smaller than or equal to the preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the bar with the width smaller than the preset bar width value in the one-dimensional bar code.
Optionally, in an implementation manner of the embodiment of the present application, the preset bar width value is a module width, or a module width 2 times, where the module width is a minimum basic width unit corresponding to a width of a bar in a one-dimensional barcode.
For example, taking 128C code as an example, the code width is 30.45mm, each module width is 30.45mm/145=0.21mm, and the widths of bars and spaces in a one-dimensional barcode are in the unit of the most basic "module width", i.e., the widths of all bars and spaces are integer multiples of the module width. It should be noted that the preset bar width value may also be a module width equal to a multiple of 3, 4 or 5, and this application is not limited in any way.
Optionally, in an implementation manner of the embodiment of the present application, performing inkjet compensation on bars in a one-dimensional barcode includes:
determining a printing position corresponding to a bar in the one-dimensional bar code according to the printing data of the one-dimensional bar code;
and controlling the spray head to spray ink at an empty position before the printing position corresponding to the bar, wherein the empty position is a part with high reflectivity in the one-dimensional bar code.
Further optionally, the width of the bars in the one-dimensional bar code after ink jet compensation is less than or equal to the theoretical width of the bars.
Specifically, for the one-dimensional bar code requiring compensation processing, the upper computer calculates the print data of the one-dimensional bar code of the ladder typesetting, detects the bar data and the specific print position of all the modules to be printed currently, and prepares to compensate the bar data of one module: the bar data is added with a row of data which is the same as the bar data, the added data occupies a row of positions of the blank module before the bar data is printed, and particularly, the width size of the bar code does not change due to the compensation of the data, because the compensated data occupies the space of the blank module. The compensated "bar" width dimension increases due to the addition of a line of print data by the compensated "bar" module, but the quality level of the bar code will be improved as long as the increased dimension value is less than the value of the size reduction before the compensation.
In summary, in the technical solution of the embodiment of the present application, in the inkjet printing process, a current inkjet offset value is obtained and determined based on a current firing frequency of a nozzle and a pre-obtained correspondence between the firing frequency of the nozzle and the inkjet offset value, where the inkjet offset value is a position offset corresponding to a drop point of an ink droplet caused by different ink droplet speeds during ink ejection; and then, when the current ink jet offset value is greater than a preset offset threshold value and the width size of the bar code of the one-dimensional bar code is less than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of the bar in the one-dimensional bar code, so that the position deviation of the bar in the one-dimensional bar code is reduced, the quality grade of the bar code is improved, and the production quality and the production qualified rate of the one-dimensional bar code are improved.
Fig. 5 is a schematic diagram illustrating an effect of ink jetting compensation corresponding to the ink jetting control method in the embodiment of the present application.
As shown in fig. 5, assume that: printing resolution 600DPI, ladder typesetting and printing a 128C one-dimensional bar code, width of the bar code being 30.45mm, first ignition ink drop spraying speed being 6000mm/s, subsequent continuous ignition ink drop spraying speed being 6500mm/s, spraying hole being 1mm away from printing medium, running speed of the printing medium being 2500mm/s (150 m/min), then size of a module of the bar code being 30.45/145=0.21mm, each module being composed of 0.21/0.042=5 rows of ink drops in the paper moving direction, see C and g in the middle part of the figure, namely a bar of the module width, and 5 rows of ink drops, and the origin point of the dotted line which is not filled in the figure represents an 'empty' module and does not need to be printed; drop deviation Δ S = (1/6000-1/6500) = 2500=0.032mm for first firing and continuous firing, if uncompensated, the size of one module is actually 0.21-0.032=0.178mm; the right side of the upper diagram is a schematic diagram after compensation, the module size of the ink drop with yellow color in the diagram after compensation is 0.042 × 6-0.032=0.22mm, and the change of the module size before and after compensation is specifically as the following table 1:
TABLE 1
| Module size (mm) | Theoretical size of module (mm) | Ratio of change from theoretical value | |
| Before compensation | 0.178 | 0.21 | 15.2％ |
| After compensation | 0.22 | 0.21 | 4.8％ |
Therefore, the size of the compensated bar module has small change and is close to a theoretical value, so that the quality grade of the bar code can be improved. According to the calculation method, the higher the running speed of the printing medium, the higher the height of the jet hole and the larger the difference value between the first ignition ink drop speed and the continuous ignition ink drop speed, the more obvious the compensation effect is, and the specific effect can be verified through process tests.
According to the size of the bar code, the height of the jet orifice, the medium running speed and the difference of the actual ink drop speed, 1 module bar data or 2 module bar data can be compensated, and the compensation is determined according to the actual process test; the parameters and the threshold values can be automatically realized through upper computer software, and the parameters and the threshold values can be automatically executed only by filling in the parameters and the threshold values by an operator according to a process test result.
Corresponding to the embodiment of the application function implementation method, the application also provides a control device, a storage medium and a corresponding embodiment.
Fig. 6 is a schematic structural diagram of a control device in the embodiment of the present application.
As shown in fig. 6, the control device 60 in the embodiment of the present application includes: an acquisition module 601, a determination module 602, and an inkjet compensation module 603;
in the ink jet printing process, the obtaining module 601 obtains the current ignition frequency of a nozzle, wherein the nozzle is used for performing ink jet in the ink jet printing process;
the determining module 602 determines a current inkjet offset value corresponding to the current ignition frequency according to a corresponding relationship between the ignition frequency of the nozzle and the inkjet offset value, where the inkjet offset value is a position offset corresponding to an ink drop point caused by different ink drop speeds during inkjet;
when the current inkjet offset value is greater than the predetermined offset threshold value and the barcode width dimension of the one-dimensional barcode is less than or equal to the predetermined barcode width threshold value, the inkjet compensation module 603 controls the nozzle to perform inkjet compensation on the width of a bar in the one-dimensional barcode, where the bar is a low-reflectivity part in the one-dimensional barcode.
Optionally, in an implementation manner of the embodiment of the present application, the inkjet compensation module 603 is specifically configured to perform the following operations:
when the current inkjet offset value is greater than the predetermined offset threshold value, the inkjet compensation module 603 determines whether the one-dimensional barcode printed by ladder typesetting exists in the inkjet-printed print content;
if the one-dimensional barcode has a width smaller than or equal to the predetermined barcode width threshold, the inkjet compensation module 603 controls the nozzle to perform inkjet compensation on the barcode having a width smaller than the preset barcode width value.
Optionally, in an implementation manner of the embodiment of the present application, the preset bar width value is a module width, or a module width that is 2 times the module width, where the module width is a minimum basic width unit corresponding to a width of a bar in the one-dimensional barcode.
Optionally, in an implementation manner of the embodiment of the present application, the inkjet compensation module 603 determines a printing position corresponding to a bar in the one-dimensional barcode according to printing data of the one-dimensional barcode; the ink jet compensation module 603 controls the nozzle to jet ink at an empty position before the printing position corresponding to the bar, wherein the empty position is a high-reflectivity part in the one-dimensional bar code.
Optionally, in an implementation manner of the embodiment of the present application, a width of a bar in the one-dimensional bar code after ink jet compensation is less than or equal to a theoretical width of the bar.
Optionally, in an implementation manner of the embodiment of the present application, a correspondence between the firing frequency of the nozzle and the inkjet offset value is a table of correspondence between the firing frequency and the inkjet offset value; the determining module 602 uses the current firing frequency to search in the corresponding relationship table of firing frequency-inkjet offset value to obtain the current inkjet offset value.
Optionally, in an implementation manner of the embodiment of the present application, the obtaining module 601 calculates a current firing frequency of the nozzle according to the running speed of the printing medium and the printing resolution of the nozzle.
With regard to the apparatus in the above embodiment, the specific manner in which each module performs operations and the advantages thereof have been described in detail in the embodiment related to the method, and will not be described in detail herein.
Fig. 7 is another schematic structural diagram of the control device in the embodiment of the present application.
As shown in fig. 7, the control device 70 in the embodiment of the present application includes a memory 701 and a processor 702. The memory has stored thereon executable code which, when executed by the processor, causes the processor to perform the method of any of the embodiments described above.
The Processor 702 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 701 may include various types of storage units, such as system memory, read Only Memory (ROM), and permanent storage. The ROM may store, among other things, static data or instructions for the processor 702 or other modules of the computer. The persistent storage device may be a read-write storage device. The persistent storage may be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered down. In some embodiments, the persistent storage device employs a mass storage device (e.g., magnetic or optical disk, flash memory) as the persistent storage device. In other embodiments, the permanent storage may be a removable storage device (e.g., floppy disk, optical drive). The system memory may be a read-write memory device or a volatile read-write memory device, such as a dynamic random access memory. The system memory may store instructions and data that some or all of the processors require at runtime. Further, the memory 701 may include any combination of computer-readable storage media, including various types of semiconductor memory chips (DRAM, SRAM, SDRAM, flash, programmable read only memory), magnetic and/or optical disks may also be employed. In some embodiments, memory 701 may include a removable storage device that is readable and/or writable, such as a Compact Disc (CD), a digital versatile disc read only memory (e.g., DVD-ROM, dual layer DVD-ROM), a Blu-ray disc read only memory, an ultra-dense optical disc, flash memory cards (e.g., SD, min SD, micro-SD, etc.), a magnetic floppy disk, and so forth. Computer-readable storage media do not contain carrier waves or transitory electronic signals transmitted by wireless or wired means.
The memory 701 has stored thereon executable code which, when processed by the processor 702, may cause the processor 702 to perform some or all of the methods described above.
Furthermore, the method according to the present application may also be implemented as a computer program or computer program product comprising computer program code instructions for performing some or all of the steps of the above-described method of the present application.
Alternatively, the present application may also be embodied as a computer-readable storage medium (or machine-readable storage medium) having stored thereon executable code (or a computer program, or computer instruction code) which, when executed by a processor of a control device (or an electronic device, a server, etc.), causes the processor to perform part or all of the steps of the above-described method according to the present application.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it should also be noted that, herein, relationships such as first and second, etc., are intended only to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms include, or any other variation is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application.
The foregoing description of the embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. An ink jet printing control method, comprising:
in the ink-jet printing process, acquiring the current ignition frequency of a spray head, wherein the spray head is used for spraying ink in the ink-jet printing process;
determining a current ink jet offset value corresponding to the current ignition frequency according to a corresponding relation between the ignition frequency of the spray head and the ink jet offset value, wherein the ink jet offset value is a position offset corresponding to an ink drop point caused by different ink drop speeds during ink jet;
and when the current ink jet deviation value is greater than a preset deviation threshold value and the width size of the bar code of the one-dimensional bar code is less than or equal to the preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the width of a bar in the one-dimensional bar code, wherein the bar is a part with low reflectivity in the one-dimensional bar code.
2. The control method according to claim 1,
when the current ink jet deviation value is greater than a preset deviation threshold value and the width size of the one-dimensional bar code is less than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the bar in the one-dimensional bar code, including:
when the current ink jet offset value is larger than a preset offset threshold value, determining whether the one-dimensional bar code printed by ladder typesetting exists in the printing content of ink jet printing;
if the one-dimensional bar code exists, when the width size of the bar code of the one-dimensional bar code is smaller than or equal to a preset bar code width threshold value, controlling the spray head to perform ink jet compensation on the bar with the width smaller than a preset bar width value in the one-dimensional bar code.
3. The control method according to claim 2,
the preset bar width value is a module width or a module width which is 2 times of the module width, wherein the module width is a minimum basic width unit corresponding to the width of a bar in the one-dimensional bar code.
4. The control method according to claim 1,
the inkjet compensation of the bars in the one-dimensional bar code includes:
determining a printing position corresponding to a bar in the one-dimensional bar code according to the printing data of the one-dimensional bar code;
and controlling the spray head to spray ink at an empty position before the printing position corresponding to the bar, wherein the empty position is a part with high reflectivity in the one-dimensional bar code.
5. The control method according to claim 1,
the width of the bar in the one-dimensional bar code after ink jet compensation is less than or equal to the theoretical width of the bar.
6. The control method according to claim 1,
the corresponding relation between the ignition frequency of the spray head and the ink jet offset value is a corresponding relation table of the ignition frequency and the ink jet offset value; determining a current ink jet offset value corresponding to the current ignition frequency according to the corresponding relationship between the ignition frequency of the nozzle and the ink jet offset value, including:
and searching in the corresponding relation table of the ignition frequency and the ink jet offset value by using the current ignition frequency to obtain the current ink jet offset value.
7. The control method according to claim 1,
the acquiring the current ignition frequency of the spray head comprises the following steps:
and calculating the current ignition frequency of the spray head according to the running speed of the printing medium and the printing resolution of the spray head.
8. A control device, comprising:
the device comprises an acquisition module, a determination module and an ink jet compensation module;
in the ink-jet printing process, the acquisition module acquires the current ignition frequency of a spray head, wherein the spray head is used for spraying ink in the ink-jet printing process;
the determining module determines a current ink jet offset value corresponding to the current ignition frequency according to a corresponding relation between the ignition frequency of the nozzle and the ink jet offset value, wherein the ink jet offset value is a position offset corresponding to an ink drop point caused by different ink drop speeds during ink jet;
when the current ink jet deviation value is larger than a preset deviation threshold value and the width size of the bar code of the one-dimensional bar code is smaller than or equal to the preset bar code width threshold value, the ink jet compensation module controls the spray head to perform ink jet compensation on the width of a bar in the one-dimensional bar code, wherein the bar is a part with low reflectivity in the one-dimensional bar code.
9. A control device, comprising:
a processor and a memory, wherein the memory has executable code stored thereon;
the executable code, when executed by the processor, causes the control device to perform the inkjet printing control method as claimed in claims 1-7.
10. A computer readable storage medium having executable code stored thereon; the executable code, when executed by the processor, causes the control device to perform the inkjet printing control method as claimed in claims 1-7.
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Cited By (1)
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| CN117162667A (en) * | 2023-10-17 | 2023-12-05 | 北京至一颐和科技有限公司 | Quick printing method and quick printing device of ink-jet printer |
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