Ink dot jet printing control method and device of ink-jet printer

Abstract

The invention relates to the technical field of ink-jet printing machines, and discloses an ink dot jet printing control method and device for an ink-jet printing machine, and the method comprises the steps: determining and recording inter-column non-printing ink dot parameters between a last column of dot matrix and a first to-be-printed column to be printed currently according to a current production line speed parameter when the ink-jet printing machine completes the jet printing of the last column of dot matrix; pre-judging the inter-column non-printing ink dot parameter as an inter-column non-printing condition between the first to-be-printed column and an adjacent next second to-be-printed column to simulate an ink droplet simulation arrangement condition around the first to-be-printed column in a jet flight process of the first to-be-printed column; and according to the ink droplet simulation arrangement condition and the preset adjustment rule, whether the ink dot arrangement of the first to-be-printed column needs to be adjusted or not is judged so as to weaken the influence of coulomb force between the charged ink droplets, and therefore the printing precision can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ink-jet printer, in particular to an ink dot printing control method and device of ink-jet printer. BACKGROUND

[0002] The nozzle of the continuous ink-jet printer is the core component for ink drop processing, and is internally provided with a jet channel for ink drop jet flight. In addition, the nozzle is sequentially provided with a charging device, a high-voltage deflection plate and an ink drop recovery end. The charging device is used for charging the ink drop to be subsequently jetted out of the nozzle with a preset value of electric charge. The high-voltage deflection plate is used for deflecting the ink drops charged with different values of electric charge to the target carrier at different deflection angles to form an identification. The ink drop recovery end is used for recovering the ink drops without being charged with electric charge. The continuous ink-jet printer forms a preset identification by jetting a plurality of charged ink dots to the target carrier in sequence. The number of non-charged ink dots (inter-column non-printing ink dots, straight jet movement, not deflected to the target carrier, and finally recovered by the ink drop recovery end) is inserted between the columns according to the production line transmission speed value. After the previous column has been jetted, the next column can be jetted only after the production line moves the target carrier to the next jet position. If the production line transmission speed is slow, the waiting time will be longer, and the number of inter-column non-printing ink dots to be set will be larger. If the speed is fast, the waiting time will be shorter, and the number of inter-column non-printing ink dots to be set will be smaller, or even zero. Since the ink drops are continuously jetted during the ink-jet process, that is, after a column of ink dots is jetted, the ink dots of the previous printing column located at the front end and the ink dots of the next printing column located at the tail end will be arranged in sequence in the jet channel with the printing column. According to Coulomb's law, the charged ink dots in the column will generate a mutual Coulomb force with the surrounding charged ink dots (including those in the same column and those in other columns), which will drive the charged ink dots to deviate from the preset position, reducing the printing accuracy. Therefore, it is particularly important to reduce the influence of the Coulomb force on the charged ink drops to improve the printing accuracy. SUMMARY The present application provides an ink dot printing control method and device of ink-jet printer, which effectively reduces the influence of the Coulomb force of the surrounding charged ink dots on the charged ink drops in each printing column, thereby improving the printing accuracy.

[0003] To solve the above technical problems, the present application discloses a first aspect of an ink dot printing control method of ink-jet printer, which comprises: When the ink-jet printer has jetted a previous column of dots, according to the obtained current production line speed parameter, the column non-printing ink dot parameter between the previous column of dots and the first printing column to be jetted is determined and recorded. The column non-printing ink dot parameter is predicted as a column non-printing condition between the first to-be-printed column and a second to-be-printed column adjacent to the first to-be-printed column, so as to simulate a simulated arrangement condition of ink drops around the first to-be-printed column in a flight process of jetting. According to the simulated arrangement condition of the ink drops and a preset adjustment rule, it is determined whether the ink dot arrangement of the first to-be-printed column needs to be adjusted.

[0004] As an optional implementation, in the first aspect of the present application, the column non-printing ink dot parameter at least includes a number of column non-printing ink dots. The simulated arrangement condition of the ink drops around the first to-be-printed column in the flight process of jetting includes: An initial ink dot arrangement condition of the first to-be-printed column is obtained. According to the column non-printing ink dot parameter, the initial ink dot arrangement condition of the first to-be-printed column, the column non-printing condition and a preset adjustment rule, a simulated arrangement range of the ink drops around the first to-be-printed column is predicted. According to the simulated arrangement range of the ink drops around the first to-be-printed column, the simulated arrangement condition of the ink drops around the first to-be-printed column in the flight process of jetting is simulated.

[0005] As an optional implementation, in the first aspect of the present application, the simulated arrangement range of the ink drops around the first to-be-printed column includes: When the number of the column non-printing ink dots is 0, according to the last column dot matrix, the initial ink dot arrangement condition of the first to-be-printed column, the second to-be-printed column and a preset adjustment rule, the simulated arrangement range of the ink drops around the first to-be-printed column is predicted.

[0006] As an optional implementation, in the first aspect of the present application, the simulated arrangement range of the ink drops around the first to-be-printed column includes: When the number of the column non-printing ink dots is greater than a preset number threshold in the preset adjustment rule, according to the column non-printing ink dot parameter, the initial ink dot arrangement condition of the first to-be-printed column, the column non-printing condition and a preset adjustment rule, the simulated arrangement range of the ink drops around the first to-be-printed column is predicted.

[0007] As an optional implementation, in the first aspect of the present application, the method further comprises: When the number of the non-printing ink dots between the columns is less than or equal to the preset number threshold in the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first column to be printed is predicted according to the last column dot matrix, the non-printing ink dot parameter between the columns, the initial ink dot arrangement of the first column to be printed, the non-printing condition between the columns, the second column to be printed, and the preset adjustment rule.

[0008] As an optional implementation, in the first aspect of the present application, the method further comprises: When the inkjet printer is ready to jet the first column dot matrix, the target non-printing ink dot parameter between the first column dot matrix and the second column dot matrix waiting to be printed is determined and recorded according to the current production line speed parameter obtained; The initial ink dot arrangement of the first column dot matrix is obtained, and based on the initial ink dot arrangement of the first column dot matrix and the target non-printing ink dot parameter, the target ink drop simulation arrangement around the first column dot matrix during the jetting flight process of the first column dot matrix is simulated; According to the target ink drop simulation arrangement and the preset adjustment rule, it is judged whether the ink dot arrangement of the first column dot matrix needs to be adjusted.

[0009] As an optional implementation, in the first aspect of the present application, the method further comprises: When it is judged that the ink dot arrangement of the first column to be printed needs to be adjusted, the ink dot arrangement of the first column to be printed is adjusted to obtain the adjusted ink dot arrangement of the first column to be printed; According to the ink dot arrangement of the first column to be printed and the adjusted ink dot arrangement of the first column to be printed, the comparison of the ink dot arrangement before and after adjustment of the first column to be printed is determined; According to the comparison of the ink dot arrangement before and after adjustment of the first column to be printed, the compensation electric quantity for charging each pre-charged ink drop in the first column to be printed which is adjusted is calculated and stored, so that the ink drop after charging compensation of the first column to be printed can be controlled for subsequent printing, and the ink dot arrangement before adjustment of the first column to be printed is restored on the printing target carrier.

[0010] As an optional implementation, in the first aspect of the present application, the method further comprises: after the ink-jet printer finishes jetting the first to-be-printed column, updating the first to-be-printed column as the last column of dots and updating the second to-be-printed column as the first to-be-printed column, and re-triggering the operation of determining and recording the column non-printing dot parameters between the last column of dots and the first to-be-printed column based on the current production line speed parameter.

[0011] The second aspect of the present application discloses an ink dot jet printing control device of an ink-jet printer, which comprises: a recording module configured to determine and record the column non-printing dot parameters between the last column of dots and the first to-be-printed column based on the current production line speed parameter when the ink-jet printer finishes jetting the last column of dots; a pre-judging module configured to pre-judge the column non-printing dot parameters as the column non-printing condition between the first to-be-printed column and the second to-be-printed column, so as to simulate the ink drop simulation arrangement around the first to-be-printed column during the jetting flight of the first to-be-printed column; a judging module configured to judge whether the ink dot arrangement of the first to-be-printed column needs to be adjusted based on the ink drop simulation arrangement and a preset adjustment rule.

[0012] As an optional implementation, in the second aspect of the present application, the column non-printing dot parameters at least include the number of column non-printing dots; wherein the pre-judging module simulates the ink drop simulation arrangement around the first to-be-printed column during the jetting flight of the first to-be-printed column in the following manner: obtaining the initial ink dot arrangement of the first to-be-printed column; judging the corresponding surrounding ink drop simulation arrangement range of the first to-be-printed column based on the initial ink dot arrangement of the first to-be-printed column, the column non-printing dot parameters, the column non-printing condition and a preset adjustment rule; simulating the ink drop simulation arrangement around the first to-be-printed column during the jetting flight of the first to-be-printed column based on the surrounding ink drop simulation arrangement range.

[0013] As an optional implementation, in the second aspect of the present application, the pre-judging module judges the corresponding surrounding ink drop simulation arrangement range of the first to-be-printed column in the following manner based on the initial ink dot arrangement of the first to-be-printed column, the column non-printing dot parameters, the column non-printing condition and a preset adjustment rule: When the number of the non-printing ink dots between the columns is 0, the pre-judging module pre-judges the surrounding ink drop simulation arrangement range corresponding to the first column to be printed according to the last column dot matrix, the initial ink dot arrangement of the first column to be printed, the second column to be printed, and a preset adjustment rule.

[0014] As an optional implementation, in the second aspect of the present application, the pre-judging module pre-judges the surrounding ink drop simulation arrangement range corresponding to the first column to be printed according to the initial ink dot arrangement of the first column to be printed, the non-printing ink dot parameter between the columns, the non-printing situation between the columns, and a preset adjustment rule. When the number of the non-printing ink dots between the columns is greater than a preset number threshold in the preset adjustment rule, the pre-judging module pre-judges the surrounding ink drop simulation arrangement range corresponding to the first column to be printed according to the non-printing ink dot parameter between the columns, the initial ink dot arrangement of the first column to be printed, the non-printing situation between the columns, and a preset adjustment rule.

[0015] As an optional implementation, in the second aspect of the present application, the pre-judging module pre-judges the surrounding ink drop simulation arrangement range corresponding to the first column to be printed according to the initial ink dot arrangement of the first column to be printed, the non-printing ink dot parameter between the columns, the non-printing situation between the columns, and a preset adjustment rule. When the number of the non-printing ink dots between the columns is less than or equal to a preset number threshold in the preset adjustment rule, the pre-judging module pre-judges the surrounding ink drop simulation arrangement range corresponding to the first column to be printed according to the last column dot matrix, the non-printing ink dot parameter between the columns, the initial ink dot arrangement of the first column to be printed, the non-printing situation between the columns, the second column to be printed, and a preset adjustment rule.

[0016] As an optional implementation, in the second aspect of the present application, the recording module is further configured to: When the inkjet printer is ready to jet the first column dot matrix, the recording module determines a target non-printing ink dot parameter between the first column dot matrix and a second column dot matrix waiting to be jetted according to the current production line speed parameter obtained. The pre-judging module is further configured to obtain an initial ink dot arrangement of the first column dot matrix, and simulate a target ink drop simulation arrangement around the first column dot matrix in a jetting flight process of the first column dot matrix based on the initial ink dot arrangement of the first column dot matrix and the target non-printing ink dot parameter. The judging module is further configured to judge whether the ink dot arrangement of the first column dot matrix needs to be adjusted according to the target ink drop simulation arrangement and the preset adjustment rule.

[0017] As an optional implementation, in the second aspect of the present application, the device further comprises: an adjusting module, configured to adjust the dot arrangement of the first to-be-printed column when the judging module judges that the dot arrangement of the first to-be-printed column needs to be adjusted, so as to obtain an adjusted dot arrangement of the first to-be-printed column; a printing control module, configured to determine a comparison between the dot arrangement of the first to-be-printed column and the adjusted dot arrangement of the first to-be-printed column according to the dot arrangement of the first to-be-printed column and the adjusted dot arrangement of the first to-be-printed column, calculate and store a compensation electric quantity for charging each pre-charged ink drop of the first to-be-printed column that has been adjusted, so as to be able to control printing of the ink drop of the first to-be-printed column after the compensation in the subsequent process and restore the dot arrangement of the first to-be-printed column to a state before the adjustment on the target printing carrier, and the dot arrangement of the printed column after being printed matches the initial dot arrangement of the first to-be-printed column.

[0018] As an optional implementation, in the second aspect of the present application, the device further comprises: a determining module, configured to, after the ink jet printer finishes jetting the first to-be-printed column, update the first to-be-printed column to be defined as the last column of dot matrix, update the second to-be-printed column to be defined as the first to-be-printed column, and re-trigger the recording module to perform the operation of determining and recording the column-to-column non-printing dot parameter between the last column of dot matrix and the first to-be-printed column that is currently waiting to be printed according to the obtained current production line speed parameter.

[0019] The third aspect of the present application discloses another ink dot printing control device of an ink jet printer, which comprises: a memory in which executable program codes are stored; a processor coupled with the memory; the processor invokes the executable program codes stored in the memory to execute the ink dot printing control method of the ink jet printer disclosed in the first aspect of the present application.

[0020] The fourth aspect of the present application discloses a computer storage medium, which stores computer instructions, and the computer instructions are used to execute the ink dot printing control method of the ink jet printer disclosed in the first aspect of the present application when being invoked.

[0021] The fifth aspect of the present application discloses an ink jet printer, which is used to execute the ink dot printing control method of the ink jet printer disclosed in the first aspect of the present application.

[0022] Compared with the prior art, the embodiments of the present application have the following beneficial effects: In normal operation, the conveying speed of the production line is approximately uniform, and there is no large fluctuation; unless an emergency or failure occurs, the conveying speed of the production line will change suddenly, because the number of non-printing ink dots between columns is set based on the conveying speed of the production line, and in the normal production operation state, the conveying speed of the production line is approximately uniform, so when the inkjet printer finishes spraying the previous column of dots, according to the current line speed parameter obtained, the column non-printing ink dot parameter between the previous column of dots and the first to-be-printed column waiting to be sprayed is determined and recorded, that is, the column non-printing between the first to-be-printed column and the second to-be-printed column is predicted before the inkjet printer sprays the first to-be-printed column, and the column non-printing ink dot parameter set according to the current corresponding real-time production line speed parameter when the inkjet printer sprays the first to-be-printed column and prepares to spray the second to-be-printed column is approximately consistent. Even if the predicted column non-printing is inconsistent with the actual column non-printing ink dot parameter (for example, due to a small probability of non-normal condition of the subsequent line speed), at most, it will only cause poor printing effect due to inaccurate prediction this time, and subsequent prediction will be performed again, so the inaccurate prediction will not be accumulated and stored, so there will be no continuous error accumulation, that is, the printing error caused by the sudden change of the line speed will not be accumulated and continued to the remaining products (target carriers). The present application adjusts the pre-charge ink dot position arrangement according to the preset adjustment rule, and then calculates the compensation electric quantity of the pre-charge ink dot whose order has changed (which has been adjusted), so that when it is finally sprayed on the target carrier, it can be restored to the expected ink dot arrangement state before adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a flowchart of an ink dot printing control method of a code inkjet printer disclosed by an embodiment of the present application; Figure 2 is a flowchart of another ink dot printing control method of a code inkjet printer disclosed by an embodiment of the present application; Figure 3 is a structural diagram of an ink dot printing control device of a code inkjet printer disclosed by an embodiment of the present application; Figure 4is a structural schematic view of another ink point printing control device of a code jet printer disclosed by the embodiment of the present application; Figure 5 is a structural schematic view of still another ink point printing control device of a code jet printer disclosed by the embodiment of the present application; Figure 6 is a schematic diagram of ink point printing control principle of a code jet printer disclosed by the embodiment of the present application; Figure 7 is a schematic diagram of a pre-judgment scene of a surrounding ink drop simulation arrangement range corresponding to a first to-be-printed column disclosed by the embodiment of the present application; Figure 8 is a schematic diagram of another pre-judgment scene of a surrounding ink drop simulation arrangement range corresponding to a first to-be-printed column disclosed by the embodiment of the present application; Figure 9 is a schematic diagram of still another pre-judgment scene of a surrounding ink drop simulation arrangement range corresponding to a first to-be-printed column disclosed by the embodiment of the present application; Figure 10 is a schematic diagram of a pre-judgment scene of a target surrounding ink drop simulation arrangement range corresponding to a first column dot matrix disclosed by the embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] The terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product, or end including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed, or can optionally further include other steps or units inherent to the process, method, product, or end.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] The application discloses an ink dot printing control method and device of a code jet printer, effectively weakens the influence of the Coulomb force of surrounding charged ink dots on charged ink drops in each to-be-printed column, and is beneficial to improving printing precision.

[0029] Embodiment one Please refer to Figure 1 , Figure 1 is a flowchart of an ink dot printing control method of a code jet printer disclosed by the embodiment of the application. Optionally, the method can be realized by an ink dot printing control device, which can be integrated in a code jet printer or a code jet type printer, or be a local server or a cloud server used for processing the ink dot printing control flow of the code jet printer, and the embodiment of the application does not make any limitation. As shown in the figure, the ink dot printing control method of the code jet printer can include the following operations: Figure 1 101. When the code jet printer finishes jetting the previous column of dots, according to the obtained current production line speed parameter, the column-to-column non-printing ink dot parameter between the previous column of dots and the first to-be-printed column waiting to be jetted is determined and recorded.

[0030] In the embodiment of the application, the column-to-column non-printing ink dot parameter at least includes the number of column-to-column non-printing ink dots. In addition, the column-to-column non-printing ink dot parameter can also include the interval between the column-to-column non-printing ink dots, etc.

[0031] 102. The column-to-column non-printing ink dot parameter is predicted as the column-to-column non-printing condition between the first to-be-printed column and the second to-be-printed column adjacent to and waiting to be jetted, so as to simulate the ink drop simulation arrangement condition around the first to-be-printed column in the jetting flight process of the first to-be-printed column.

[0032] In the embodiment of the application, optionally, the column-to-column non-printing condition includes the number of column-to-column non-printing ink dots between the first to-be-printed column and the second to-be-printed column predicted based on the column-to-column non-printing ink dot parameter.

[0033] Further optionally, the ink drop simulation arrangement condition includes the position, number, interval and information of the charge (such as the size of the charge) of each ink drop in the ink drop simulation arrangement around the first to-be-printed column in the jetting flight process of the first to-be-printed column.

[0034] 103. According to the ink drop simulation arrangement condition and a preset adjustment rule, it is judged whether the ink dot arrangement of the first to-be-printed column needs to be adjusted.

[0035] ​In the embodiment of the present application, the preset adjustment rule at least includes a plurality of mapping relationships associated with a preset initial ink dot arrangement of the to-be-printed column, a corresponding ink drop simulation arrangement, and a corresponding ink drop adjustment sorting result. The mapping relationships can be understood as a collection of a plurality of adjustment requirement rules summarized by humans, or an automatic adjustment algorithm model to be developed.

[0036] Further, the method further includes: When it is determined that the ink dot arrangement of the first to-be-printed column needs to be adjusted, the ink dot arrangement of the first to-be-printed column is adjusted to obtain an adjusted ink dot arrangement of the first to-be-printed column. According to the ink dot arrangement of the first to-be-printed column and the adjusted ink dot arrangement of the first to-be-printed column, a comparison between the ink dot arrangement before adjustment and the ink dot arrangement after adjustment of the first to-be-printed column is determined. According to the comparison between the ink dot arrangement before adjustment and the ink dot arrangement after adjustment of the first to-be-printed column, a compensation electric quantity for charging each pre-charging ink drop that has been adjusted in the first to-be-printed column is calculated and stored, so that subsequent ink drop charging compensation can be controlled and the ink dot arrangement before adjustment of the first to-be-printed column can be restored on the target carrier.

[0037] In the optional embodiment, it can be understood as follows: after the compensation electric quantity for charging each pre-charging ink drop that has been adjusted in the first to-be-printed column is calculated and stored, each pre-charging ink drop is charged with a corresponding compensation electric quantity when it is actually ejected and passes through the charging area, and after passing through the high-voltage electric field deflection area, each charged ink drop compensates and corrects the deflection angle according to the corresponding charged quantity (i.e., the compensation of the charging quantity is converted into the compensation of the landing position), and the preset position on the target carrier is corrected and ejected, so that the ink dot arrangement before adjustment of the first to-be-printed column can be restored on the target carrier. It should be noted that the compensation electric quantity can be positive or negative. The present application adjusts the pre-charging ink dot position arrangement according to the preset adjustment rule, and then calculates the compensation electric quantity for each pre-charging ink drop whose sorting has changed, so that the ink dot arrangement before adjustment can be restored on the target carrier when the ink drop is finally ejected on the target carrier.

[0038] In the optional embodiment, the method further includes: when it is determined that the ink dot arrangement of the first to-be-printed column does not need to be adjusted, the charged ink drops of the first to-be-printed column are directly charged according to the original plan.

[0039] This is because there is no pre-charge ink droplets position adjustment, so there is no need to calculate the compensation of the respective pre-charge ink droplets, only need to charge according to the original pre-existing computer charge plan.

[0040] Wherein, whether the ink dot arrangement of the first to-be-printed column is adjusted or not, the ink dot arrangement of the print column finally sprayed on the target carrier is consistent with the initial ink dot arrangement of the first to-be-printed column, which is the final printing effect to be achieved. Specifically, according to the preset adjustment rule, in order to reduce the influence of the Coulomb force between the charged ink droplets, the ink dot arrangement of the first to-be-printed column is adjusted, and the ink dot arrangement of the print column expected to be sprayed on the target carrier does not match the adjusted ink dot arrangement of the first to-be-printed column. Subsequently, after the compensation of the charging amount, the deflection angle of the charged ink droplets is corrected and deflected to the expected landing position on the target carrier; Alternatively, after the judgment of the preset adjustment rule, the ink dot arrangement of the first to-be-printed column does not need to be adjusted, so that the charged ink droplets do not need to be compensated for the charging amount, and the charging is performed according to the original pre-existing computer charge plan. The charged ink droplets can be deflected to the expected landing position on the target carrier.

[0041] Further, the method further comprises: After the inkjet printer sprays the first to-be-printed column, the first to-be-printed column is updated and defined as the last column dot matrix, the second to-be-printed column is updated and defined as the first to-be-printed column, and the adjacent third to-be-printed column located in the sequence downstream of the printing sequence of the second to-be-printed column is updated and defined as the second to-be-printed column. The execution of determining and recording the column non-printing ink dot parameters between the last column dot matrix and the first to-be-printed column currently waiting to be sprayed is triggered again according to the obtained current line speed parameter; The column non-printing ink dot parameters are predicted as the column non-printing situation between the first to-be-printed column and the adjacent next second to-be-printed column waiting to be sprayed, so as to simulate the ink droplet simulation arrangement around the first to-be-printed column during the spraying flight process; According to the ink droplet simulation arrangement and the preset adjustment rule, it is judged whether the ink dot arrangement of the first to-be-printed column needs to be adjusted.

[0042] In this optional embodiment, it should be noted that the continuous inkjet printer forms a preset mark by spraying a plurality of charged ink dots in sequence to the target carrier, and a corresponding number of non-charged ink dots (inter-column non-printing ink dots, which will be recycled by the nozzle and will not be sprayed to the target carrier) will be inserted between the columns according to the production line transmission speed value. After the last column has been sprayed, the next column cannot be sprayed until the production line moves the target carrier to the next position to be sprayed. If the production line transmission speed is slow, the waiting time will be longer, and the number of inter-column non-printing ink dots to be set will be larger. If the speed is fast, the waiting time will be shorter, and the number of inter-column non-printing ink dots to be set will be smaller, or even zero. In normal operation, the transmission speed of the production line is approximately uniform and will not fluctuate greatly. Unless an unexpected situation or failure occurs, the transmission speed of the production line will change suddenly. Because the number of inter-column non-printing ink dots is set based on the transmission speed of the production line, and the transmission speed of the production line is approximately uniform in normal production operation, when the inkjet printer sprays the last column of dots, the inter-column non-printing ink dot parameters between the last column of dots and the first printing column to be sprayed are determined and recorded according to the current production line speed parameter, that is, the inter-column non-printing situation between the first printing column and the second printing column is predicted when the inkjet printer has not yet sprayed the first printing column. The inter-column non-printing ink dot parameters set according to the current real-time production line speed parameter when the inkjet printer sprays the first printing column and prepares to spray the second printing column are probably consistent. Even if the predicted inter-column non-printing situation is inconsistent with the actual inter-column non-printing ink dot parameters (for example, due to a sudden change in the production line speed caused by a small probability of abnormal conditions), at most, it will only cause poor printing due to inaccurate prediction this time, and the next prediction will be performed again. Therefore, the inaccurate prediction will not be accumulated and stored, so there will be no continuous error accumulation, that is, the printing error caused by the sudden change in the production line speed will not be accumulated and continued to the remaining products (target carriers). The present application adjusts the pre-charged ink dot position arrangement according to the preset adjustment rule, and then calculates the compensation electric quantity of the pre-charged ink dots whose order has changed, so that the ink dots can be restored to the expected ink dot arrangement state before adjustment when they are finally sprayed on the target carrier.

[0043] In summary, as shown in Figure 6 The inkjet printer ink dot printing control principle in the embodiment of the present application can be understood as follows: When the inkjet printer finishes the inkjet of the last column of dot matrix, the moving speed parameter of the current production line will be obtained immediately. The inkjet printer will determine and record the parameter of the non-printing dot matrix between the last column of dot matrix and the first printing column which is waiting to be printed according to the current production line speed (i.e. the transmission speed of the production line), for example, there are n non-printing dot matrix between the columns.

[0044] Then, the inkjet printer will predict the non-printing situation between the first printing column and the second printing column which is waiting to be printed according to the actually recorded parameter of the non-printing dot matrix between the columns (the actual non-printing dot matrix between the first printing column and the second printing column is actually based on the real-time corresponding production line speed to be inkjet), for example, it is predicted that n non-printing dot matrix will be inkjet, so as to quickly simulate the arrangement position, number, whether the ink droplets are charged and the charge amount of each ink droplet of the ink droplets around the first printing column in the inkjet flight process (i.e. the simulation arrangement situation of the ink droplets).

[0045] Then, the inkjet printer will determine whether to adjust the ink dot arrangement of the first printing column according to the simulation arrangement situation of the ink droplets and the preset adjustment rule (these rules can be artificially summarized and set, or can be an algorithm model to be developed, and the purpose of the preset adjustment rule is to weaken the influence of the Coulomb force between the charged ink droplets during the flight period after the inkjet by rearranging the charged ink dots). If adjustment is needed, the compensation electric quantity for charging each pre-charged ink droplet of the first printing column after adjustment is calculated and stored according to the position of each pre-charged ink droplet after adjustment relative to the position before adjustment, so that each pre-charged ink droplet is charged with the corresponding compensation electric quantity when it actually leaves the charging area, and each pre-charged ink droplet is compensated and corrected according to the corresponding charge amount after passing through the high-voltage electric field deflection area (i.e. the compensation of the charging quantity is converted into the compensation of the landing position), and the pre-set position on the inkjet target carrier is corrected, and the ink dot arrangement state of the first printing column before adjustment is restored on the inkjet target carrier. It should be noted that the compensation electric quantity can be positive or negative. The present application adjusts the position arrangement of the pre-charged ink dots according to the preset adjustment rule, and then calculates the compensation electric quantity for the pre-charged ink dots with changed order, so that the ink dots can be restored to the ink dot arrangement state before adjustment when they are finally inkjet on the target carrier (wherein, Figure 6 The high-voltage deflection plate is used to apply a deflection electric field to the ink droplets after compensation charging, and the ink droplet recovery end is used to recover the non-charged ink droplets which are not deflected by the deflection plate and are straightly inkjet, including the non-printing ink droplets between the columns), so as to improve the inkjet effect.

[0046] This process repeats itself. After the inkjet printer finishes printing the first column to be printed, it updates the first column to be printed as the previous column, updates the second column to be printed as the first column to be printed, and updates the adjacent third column to be printed downstream of the second column to be printed as the second column to be printed. Then, it triggers execution again: based on the obtained current production line speed parameters, it determines and records the non-printing ink droplet parameters between the previous column and the first column to be printed, and predicts the non-printing ink droplet parameters between the first column to be printed and the adjacent second column to be printed, so as to simulate the ink droplet arrangement around the first column to be printed during the inkjet process; based on the simulated ink droplet arrangement and preset adjustment rules, it determines whether the ink droplet arrangement of the first column to be printed needs to be adjusted.

[0047] As can be seen, by implementing the embodiments of the present invention, the arrangement of pre-charged ink dots is adjusted according to preset adjustment rules, which is then used to weaken the influence of the Coulomb force between charged ink droplets (which are actually to be printed on the target carrier to form a mark) and improve the printing quality; then, compensation charge is calculated for each pre-charged ink droplet whose arrangement has changed, so that when it is finally printed on the target carrier, it can be restored to the ink dot arrangement state before adjustment.

[0048] Example 2 Please see Figure 2 , Figure 2 This is a schematic flowchart of another ink dot printing control method for an inkjet printer disclosed in an embodiment of the present invention. Optionally, this method can be implemented by an ink dot printing control device, which can be integrated into the inkjet printer or a printer of the inkjet type, or it can be a local server or cloud server for processing the ink dot printing control process of the inkjet printer, etc., and the embodiments of the present invention are not limited thereto. Figure 2 As shown, the ink dot printing control method of this inkjet printer may include the following operations: 201. When the inkjet printer finishes printing the previous column of dots, it determines and records the non-printing ink dot parameters between the previous column of dots and the first column to be printed, based on the obtained current production line speed parameters.

[0049] 202. Predict the non-printing ink dot parameters between columns as the non-printing situation between the first column to be printed and the adjacent second column to be printed.

[0050] 203. Obtain the initial ink dot arrangement of the first column to be printed.

[0051] In the embodiment of the present application, optionally, the initial ink dot arrangement includes at least one of the initial ink dot arrangement quantity, the initial ink dot arrangement position, the initial ink dot arrangement interval, and the charge parameter (such as the charge quantity) of the initial charged ink dot.

[0052] 204. According to the inter-column non-printing ink dot parameter, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted.

[0053] In the embodiment of the present application, in addition to the multiple sets of mapping relationships associated with the preset initial ink dot arrangement of the to-be-printed column, the corresponding ink drop simulation arrangement, and the corresponding ink drop adjustment sequence result, the preset adjustment rule can also include a judgment simulation analysis range rule. The judgment simulation analysis range rule can be understood as follows: according to the initial charged ink dot arrangement quantity, the interval, the charge parameter (such as the charge quantity) of the first to-be-printed column, the number and interval of the inter-column non-printing ink dots between the previous column dot matrix and the first to-be-printed column, and the number and interval of the inter-column non-printing ink dots between the first to-be-printed column and the second to-be-printed column predicted, and combining the judgment simulation analysis range rule in the preset adjustment rule, the surrounding ink drop simulation arrangement range (for example: the ink drops in the arrangement range between the a front ink dots and the b rear ink dots of the first to-be-printed column need to be simulated and analyzed) required for the subsequent first to-be-printed column can be predicted.

[0054] 205. According to the surrounding ink drop simulation arrangement range, the ink drop simulation arrangement condition around the first to-be-printed column in the jet flight process of the first to-be-printed column is simulated.

[0055] 206. According to the ink drop simulation arrangement condition and the preset adjustment rule, it is judged whether the ink dot arrangement of the first to-be-printed column needs to be adjusted.

[0056] In the embodiment of the present application, for other descriptions of steps 201, 202, and 205, please refer to the detailed description of steps 101-103 in Embodiment One, and the present embodiment will not be repeated.

[0057] It can be seen that by implementing the embodiments of the present application, the initial ink dot arrangement of the first to-be-printed column is acquired, and the inter-column non-printing ink dot parameters between the actually recorded last column dot matrix and the first to-be-printed column, the predicted inter-column non-printing condition between the first to-be-printed column and the second to-be-printed column, and the preset adjustment rule are combined to predict the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column (the arrangement range is an analysis condition for subsequent adjustment of the ink dot arrangement according to the preset adjustment rule), and then the surrounding ink drop simulation arrangement condition of the first to-be-printed column in the ejection flight process is simulated according to the surrounding ink drop simulation arrangement range, so as to judge the ink dot arrangement adjustment requirement of the first to-be-printed column. In this way, by focusing on the key area related to the first to-be-printed column in the ejection flight, the surrounding ink drop simulation arrangement range is determined, the invalid simulation of irrelevant areas is reduced, and the system operation efficiency is significantly improved. At the same time, based on the correlation analysis of the specific parameters of the initial ink dot arrangement of the first to-be-printed column and the simulated surrounding ink drop arrangement condition, the possible Coulomb force interference of the first to-be-printed column in the ejection flight can be more accurately identified, the judgment of the ink dot arrangement adjustment is more targeted, the accuracy of the adjustment decision is effectively improved, and the printing effect is improved.

[0058] In an optional embodiment, the step 204 of predicting the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column according to the inter-column non-printing ink dot parameters, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule comprises: When the number of inter-column non-printing ink dots is 0, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted according to the last column dot matrix, the initial ink dot arrangement of the first to-be-printed column, the second to-be-printed column, and the preset adjustment rule.

[0059] In this optional embodiment, as Figure 7As shown, when the production line speed is fast enough, the number of non-printing ink dots between the previous column of dots and the first column to be printed can be 0 (as explained in Example 1), and the number of non-printing ink dots between the first column to be printed and the second column to be printed can also be 0. At this point, the initial assessment of the simulation analysis range only needs to consider the previous column of dots, the first column to be printed, and the second column to be printed. Then, based on the specific ink dot arrangement of the previously ejected previous column, the initial ink dot arrangement of the first column to be printed (such as the initial number of ink dots, spacing, position, and charge of charged ink droplets), and the initial ink dot arrangement of the second column to be printed, and combined with the simulation analysis range judgment rules in the preset adjustment rules, the simulated arrangement range of ink droplets surrounding the first column to be printed, which may cause Coulomb force interference to the charged ink droplets within the first column (e.g., the Coulomb force of some nearby charged ink dots in the previously ejected previous column and the subsequent second column to be printed will cause the ejection trajectory of the charged ink droplets in the first column to be printed to deviate), is pre-judged. In this embodiment, the simulated arrangement range of surrounding ink droplets may include, for example, the following: Figure 7 The diagram shows all ink dots in the previous column, all ink dots in the first column to be printed, and all ink dots in the second column to be printed. In other embodiments, it may also include a portion of the ink dots in the previous column, all ink dots in the first column to be printed, and a portion of the ink dots in the second column to be printed. Therefore, within this simulated ink droplet arrangement range, the arrangement position and spacing of the ink droplets around the first column to be printed during its jetting flight can be simulated. This provides a basis for determining whether the ink dot arrangement of the first column to be printed needs to be adjusted based on the simulated ink droplet arrangement around it, ensuring the precise triggering of the ink dot arrangement adjustment of the first column to be printed, and effectively reducing the influence of Coulomb forces between charged ink droplets inside and outside (surrounding) the first column to be printed after it is actually jetted out.

[0060] As can be seen, this optional embodiment can predict the simulated distribution range of surrounding ink droplets corresponding to the first printing column by focusing on the previous column, the first printing column, and the second printing column, and combining the corresponding ink droplet arrangement of the three and the judgment simulation analysis range rules in the preset adjustment rules. This reduces the invalid simulation of irrelevant areas and covers key areas that may cause interference (such as the charge repulsion of surrounding charged ink droplets). This provides a precise basis for subsequent adjustment judgments and can effectively predict the risk of trajectory deviation of the first printing column, ensuring the accurate triggering of its ink droplet arrangement adjustment. This can reduce the influence of Coulomb force between charged ink droplets inside and outside (surrounding) the first printing column after it is actually ejected, thereby improving the printing clarity on high-speed production lines.

[0061] In another optional embodiment, step 204 above, which involves predicting the simulated distribution range of surrounding ink droplets corresponding to the first column to be printed based on the non-printing ink droplet parameters between columns, the initial ink droplet arrangement of the first column to be printed, the non-printing conditions between columns, and preset adjustment rules, includes: When the number of non-printing ink dots between columns exceeds the preset number threshold in the preset adjustment rules, the simulated arrangement range of surrounding ink droplets corresponding to the first column to be printed is predicted based on the non-printing ink dot parameters between columns, the initial ink dot arrangement of the first column to be printed, the non-printing situation between columns, and the preset adjustment rules.

[0062] In this optional embodiment, where the number of uncharged, non-printing ink dots between columns is sufficiently large, it is only necessary to consider how to reduce the Coulomb force effect between charged ink droplets within the first column to be printed and to optimize the sorting. For example... Figure 8 As shown, when the production line speed is slow, the number of non-printing ink dots between the previous column and the first column to be printed will be relatively large. Similarly, the predicted number of non-printing ink dots between the first and second columns to be printed will also be relatively large. In this case, the initial simulation analysis range can be determined by considering only the non-printing ink dots between the previous column and the first column to be printed, the first column to be printed, and the non-printing ink dots between the first and second columns to be printed. Then, based on the specific parameters of the non-printing ink dots and the arrangement of the non-printing situations (such as the number of dots, intervals, and the charge of each droplet), as well as the initial ink dot arrangement of the first column to be printed, and combined with the simulation analysis range rules in the preset adjustment rules, it is only necessary to consider how to reduce the influence of the Coulomb force between charged ink droplets within the first column to be printed and to optimize the sorting. Specifically, in this embodiment, the simulated arrangement range of surrounding ink droplets may include, for example, Figure 8 The diagram shows the non-printing ink dot parameters between columns and a subset of ink dots in the non-printing column situation (i.e., a subset of non-printing ink dots between the previous column and the first column to be printed, and a subset of non-printing ink dots between the first column to be printed and the second column to be printed), as well as all ink dots in the first column to be printed. In other embodiments, it may also include the non-printing ink dot parameters between columns and a subset of ink dots in the non-printing column situation (i.e., all non-printing ink dots between the previous column and the first column to be printed, and all non-printing ink dots between the first column to be printed and the second column to be printed), as well as all ink dots in the first column to be printed.

[0063] It can be seen that the optional embodiment can, for a printing scene with a slow production line speed and a large number of non-printing ink dots between the actually recorded last column dot matrix and the first to-be-printed column, define the surrounding ink drop simulation arrangement range by focusing on the key area related to the first to-be-printed column in the ejection flight, reduce the invalid simulation of irrelevant areas, and significantly improve the system operation efficiency; at the same time, based on the correlation analysis of the specific parameters of the initial ink dot arrangement of the first to-be-printed column and the simulated surrounding ink drop arrangement, the Coulomb force interference (including the Coulomb force interference between the charged ink drops inside and outside the first to-be-printed column) that may exist around the first to-be-printed column during the ejection flight can be more accurately identified, so that the judgment of the ink dot arrangement adjustment of the first to-be-printed column is more targeted, the accuracy of the adjustment decision is effectively improved, and the printing effect is improved.

[0064] In yet another optional embodiment, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column in the step 204 is predicted according to the inter-column non-printing ink dot parameters, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule, including: When the number of inter-column non-printing ink dots is less than or equal to the preset number threshold in the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted according to the last column dot matrix, the inter-column non-printing ink dot parameters, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, the second to-be-printed column, and the preset adjustment rule.

[0065] In this optional embodiment, as shown in Figure 9 When the production line speed is fast, the number of inter-column non-printing ink dots between the actually ejected last column dot matrix and the first to-be-printed column is small, and similarly, the number of inter-column non-printing ink dots between the first to-be-printed column and the second to-be-printed column is also small. At this time, the preliminary judgment simulation analysis range needs to comprehensively consider the last column dot matrix, the inter-column non-printing ink dots between the last column dot matrix and the first to-be-printed column, the first to-be-printed column, the inter-column non-printing ink dots (inter-column non-printing condition) between the first to-be-printed column and the second to-be-printed column, and the second to-be-printed column, and then according to the ink dot arrangement of the last column dot matrix that has been ejected, the inter-column non-printing ink dot parameters, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the initial ink dot arrangement of the second to-be-printed column, and combining the judgment simulation analysis range rule in the preset adjustment rule, the ink drop simulation arrangement range around the first to-be-printed column that may produce Coulomb force interference to the charged ink drops in the first to-be-printed column during the ejection flight is predicted. In some embodiments, the surrounding ink drop simulation arrangement range can include, as shown in Figure 9The column non-printing ink dots parameters and all the ink dots between the column non-printing (i.e. all the column non-printing ink dots between the last printed dot matrix and the first to-be-printed column, all the column non-printing ink dots between the first to-be-printed column and the second to-be-printed column), all the ink dots of the first to-be-printed column, part of the ink dots of the last printed dot matrix, and part of the ink dots of the second to-be-printed column. Or in some embodiments, the surrounding ink drop simulation arrangement range can also include the column non-printing ink dots parameters and all the ink dots between the column non-printing (i.e. all the column non-printing ink dots between the last printed dot matrix and the first to-be-printed column, all the column non-printing ink dots between the first to-be-printed column and the second to-be-printed column), all the ink dots of the first to-be-printed column, all the ink dots of the last printed dot matrix, and all the ink dots of the second to-be-printed column.

[0066] It can be seen that the optional embodiment can define the surrounding ink drop simulation arrangement range by focusing on the key area related to the first to-be-printed column in the ejection flight for the inkjet scene with a faster production line speed and fewer non-printing ink dots between the last printed dot matrix and the first to-be-printed column, reducing the invalid simulation of irrelevant areas and significantly improving the system operation efficiency. At the same time, based on the correlation analysis between the specific parameters of the initial ink dot arrangement of the first to-be-printed column and the simulated surrounding ink drop arrangement, the possible Coulomb force interference (including the Coulomb force interference between the charged ink drops inside and outside the first to-be-printed column) of the first to-be-printed column in the ejection flight can be more accurately identified, making the judgment of the ink dot arrangement adjustment of the first to-be-printed column more targeted, effectively improving the accuracy of the adjustment decision, and thus improving the inkjet effect.

[0067] In yet another optional embodiment, the method further comprises: When the production line is started and the inkjet printer is ready to jet the first column dot matrix, the target column non-printing ink dot parameters between the first column dot matrix and the second column dot matrix waiting to be printed are determined and recorded according to the obtained current production line speed parameters; The initial ink dot arrangement of the first column dot matrix is obtained, and based on the initial ink dot arrangement of the first column dot matrix and the target column non-printing ink dot parameters, the target ink drop simulation arrangement around the first column dot matrix in the ejection flight process of the first column dot matrix is simulated; According to the target ink drop simulation arrangement and the preset adjustment rule, it is judged whether the ink dot arrangement of the first column dot matrix needs to be adjusted.

[0068] In this optional embodiment, further, based on the initial ink dot arrangement of the first column dot matrix and the target column non-printing ink dot parameters, the target ink drop simulation arrangement around the first column dot matrix in the ejection flight process of the first column dot matrix is simulated, which comprises: Based on the initial ink dot arrangement of the first column, the non-printing ink dot parameters between the target columns, and the preset adjustment rules, the simulated arrangement range of ink droplets around the target corresponding to the first column is predicted. Based on the simulated distribution range of ink droplets around the target, the simulated distribution of target ink droplets around the first column of dots during jet flight is simulated.

[0069] In this optional embodiment, the method further includes: When it is determined that the ink dot arrangement of the first column of the dot matrix needs to be adjusted, the ink dot arrangement of the first column of the dot matrix is ​​adjusted according to the preset adjustment rules to obtain the adjusted ink dot arrangement of the first column of the dot matrix. Based on the position of each pre-charged ink droplet in the first column of the dot matrix that has been adjusted relative to its original position, the compensation amount for charging each pre-charged ink droplet in the first column of the dot matrix is ​​calculated and stored. When each pre-charged ink droplet is actually ejected and passes through the charging area, each pre-charged ink droplet is charged with the corresponding compensation amount. After passing through the high-voltage electric field deflection area, each charged ink droplet compensates for the deflection angle according to its corresponding charge (i.e., the charge amount compensation is converted into the landing position compensation), and corrects the ink droplet to the preset position on the printing target carrier, restoring the ink dot arrangement of the first column of the dot matrix to the state before adjustment on the printing target carrier.

[0070] When it is determined that there is no need to adjust the ink droplet arrangement of the first column of the dot matrix, the charged ink droplets of the first column of the dot matrix are charged directly according to the original plan, without the need for additional power compensation.

[0071] For example, such as Figure 10 As shown, during the initial printing, there are no actual inter-column non-printing ink dots or references to the printed column dot matrix in front of the first column dot matrix. At this time, based on the current production line speed, it is necessary to first predict the parameters of the target inter-column non-printing ink dots that may correspond to the first and second column dot matrices, such as the number and spacing of inter-column non-printing ink dots. Then, the initial simulation analysis range can be determined by considering only the first column dot matrix and the predicted inter-column non-printing ink dots between the first and second columns. Then, based on the specific initial ink dot arrangement of the first column dot matrix and the predicted target inter-column non-printing ink dot parameters, and combined with the simulation analysis range determination rules in the preset adjustment rules, the simulated arrangement range of ink droplets around the target that may be affected by Coulomb force during the jetting process of the first column dot matrix is ​​predicted. In an optional embodiment, the simulated arrangement range of ink droplets around the target may include, for example... Figure 10All ink dots of the first column dot matrix and all ink dots of the inter-column non-printing ink dots between the first column dot matrix and the second column dot matrix. In other embodiments, when the production line transmission speed is slow enough, and the corresponding inter-column non-printing ink dots are enough, the target surrounding ink drop simulation arrangement range can also include all ink dots of the first column dot matrix and part of ink dots of the inter-column non-printing ink dots between the first column dot matrix and the second column dot matrix. In other embodiments, when the production line transmission speed is fast enough, and the corresponding inter-column non-printing ink dots are few, the target surrounding ink drop simulation arrangement range can also include all ink dots of the first column dot matrix, all ink dots of the inter-column non-printing ink dots between the first column dot matrix and the second column dot matrix, and all ink dots of the second column dot matrix. Furthermore, it needs to be further explained that when the first column dot matrix is completed, the first column dot matrix is immediately updated to be the "last column dot matrix" in step 101, and the second column dot matrix is updated to be the "first to-be-printed column" in step 101.

[0072] It can be seen that the optional embodiment can be started for the production line, and in the initial printing scene of the inkjet printer, the particularity of the first column dot matrix without a previous reference. By predicting the target inter-column non-printing ink dot parameters based on the current production line speed, and combining the initial ink dot arrangement of the first column dot matrix, the target surrounding ink drop simulation arrangement range suitable for the initial printing scene is predicted, and then the target ink drop simulation arrangement around the first column dot matrix in the flight process is simulated, and the ink dot arrangement adjustment requirement of the first column dot matrix is judged by combining the preset adjustment rule. In this way, the blank of no historical printing data reference in the initial printing is filled, and the target surrounding ink drop simulation arrangement range corresponding to the first column dot matrix is predicted by focusing on the first column dot matrix itself and the predicted target inter-column non-printing ink dot, which improves the targeting of the judgment coverage range and reduces invalid operations.

[0073] Embodiment three Please refer to Figure 3 , Figure 3 is a structural schematic diagram of an ink dot printing control device of an inkjet printer disclosed by the embodiment of the present application. As Figure 3 shown, the ink dot printing control device of the inkjet printer can include: The recording module 301 is configured to, when the inkjet printer completes the last column dot matrix, determine and record the inter-column non-printing ink dot parameters between the last column dot matrix and the first to-be-printed column which is currently waiting to be printed according to the obtained current production line speed parameter; The prediction module 302 is configured to predict the inter-column non-printing ink dot parameters as the inter-column non-printing situation between the first to-be-printed column and the second to-be-printed column which is the next adjacent column waiting to be printed, so as to simulate the ink drop simulation arrangement around the first to-be-printed column in the flight process of the first to-be-printed column; The judgment module 303 is configured to judge whether the ink dot arrangement of the first to-be-printed column needs to be adjusted according to the ink drop simulation arrangement and a preset adjustment rule.

[0074] In this optional embodiment, the device further comprises: The adjustment module 304 is configured to adjust the ink dot arrangement of the first to-be-printed column to obtain an adjusted ink dot arrangement of the first to-be-printed column when the judgment module 303 judges that the ink dot arrangement of the first to-be-printed column needs to be adjusted. The printing control module 305 is configured to determine the comparison between the ink dot arrangement before adjustment and the adjusted ink dot arrangement of the first to-be-printed column according to the ink dot arrangement of the first to-be-printed column and the adjusted ink dot arrangement of the first to-be-printed column, calculate and store the compensation electric quantity for charging each adjusted ink drop in the first to-be-printed column, so as to control the printing of the ink drops after charging compensation of the first to-be-printed column and restore the ink dot arrangement of the first to-be-printed column to the state before adjustment on the target printing carrier.

[0075] In this optional embodiment, specifically, the printing control of the ink drops after charging compensation of the first to-be-printed column refers to the deflection angle control of the ink drops after charging compensation of the first to-be-printed column.

[0076] Further, the device further comprises: The determination module 306 is configured to update the first to-be-printed column to the last column of matrix after the ink jet printer finishes jetting the first to-be-printed column, update the second to-be-printed column to the first to-be-printed column, and re-trigger the recording module 301 to perform the operation of determining and recording the column interval non-printing ink dot parameter between the last column of matrix and the first to-be-printed column according to the current production line speed parameter obtained.

[0077] It can be seen that the ink dot printing control device of the ink jet printer can dynamically determine the column interval non-printing ink dot parameter between the last column of matrix and the first to-be-printed column through the real-time obtained production line speed parameter, and predict the column interval non-printing situation between the first to-be-printed column and the second to-be-printed column, so as to simulate the ink drop arrangement around the first to-be-printed column, and judge the ink dot arrangement adjustment requirement of the first to-be-printed column in combination with the preset adjustment rule. Figure 3 The described ink dot printing control device of the ink jet printer can dynamically determine the column interval non-printing ink dot parameter between the last column of matrix and the first to-be-printed column through the real-time obtained production line speed parameter, and predict the column interval non-printing situation between the first to-be-printed column and the second to-be-printed column, so as to simulate the ink drop arrangement around the first to-be-printed column, and judge the ink dot arrangement adjustment requirement of the first to-be-printed column in combination with the preset adjustment rule.

[0078] In an optional embodiment, the column interval non-printing ink dot parameter at least includes the number of column interval non-printing ink dots; The way in which the prediction module 302 simulates the ink drop simulation arrangement around the first to-be-printed column during the jetting flight of the first to-be-printed column specifically includes: Obtaining the initial ink dot arrangement of the first to-be-printed column; According to the inter-column non-printing ink dot parameter, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule, a surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted. According to the surrounding ink drop simulation arrangement range, an ink drop simulation arrangement condition of the first to-be-printed column in the jet flight process is simulated.

[0079] It can be seen that, in the implementation Figure 4 The ink dot printing control device of the inkjet printer described can predict the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column by acquiring the initial ink dot arrangement of the first to-be-printed column, combining the inter-column non-printing ink dot parameter between the last column dot matrix actually recorded and the first to-be-printed column, the predicted inter-column non-printing condition between the first to-be-printed column and the second to-be-printed column, and the preset adjustment rule, and then simulating the ink drop simulation arrangement condition of the first to-be-printed column in the jet flight process according to the surrounding ink drop simulation arrangement range, so as to judge the ink dot arrangement adjustment requirement of the first to-be-printed column. In this way, by focusing on the key area related to the first to-be-printed column in the jet flight, the surrounding ink drop simulation arrangement range is determined, the invalid simulation of irrelevant areas is reduced, and the system operation efficiency is significantly improved. At the same time, based on the correlation analysis between the specific parameters of the initial ink dot arrangement of the first to-be-printed column and the simulated surrounding ink drop arrangement condition, the possible Coulomb force interference of the first to-be-printed column in the jet flight (including the Coulomb force interference between the charged ink drops inside and outside the first to-be-printed column) can be more accurately identified, so that the judgment of the ink dot arrangement adjustment of the first to-be-printed column is more targeted, the accuracy of the adjustment decision is effectively improved, and the printing effect is improved.

[0080] In another optional embodiment, the prediction module 302 predicts the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column according to the inter-column non-printing ink dot parameter, the initial ink dot arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule. The way specifically includes: When the number of inter-column non-printing ink dots is 0, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted according to the last column dot matrix, the initial ink dot arrangement of the first to-be-printed column, the second to-be-printed column, and the preset adjustment rule.

[0081] It can be seen that, in the implementation Figure 4The ink point jet printing control device of the described inkjet printer can, for a jet printing scene with a high production line speed, a real record of 0 non-printing ink points between the last column of dots and the first to-be-printed column, and a focus on the last column of dots, the first to-be-printed column, and the second to-be-printed column, in combination with the corresponding ink point arrangement of the three and the judgment simulation analysis range rule in the preset adjustment rule, predict the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column. In this way, not only is the invalid simulation of irrelevant areas reduced, but also the key areas that may be subject to Coulomb force interference are covered, thereby facilitating the provision of accurate basis for subsequent adjustment judgments.

[0082] In yet another optional embodiment, the way in which the prediction module 302 predicts the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column according to the initial ink point arrangement of the first to-be-printed column, the inter-column non-printing ink point parameter, the inter-column non-printing condition, and the preset adjustment rule specifically includes: When the number of inter-column non-printing ink points is greater than the preset number threshold in the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted according to the inter-column non-printing ink point parameter, the initial ink point arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule.

[0083] In this optional embodiment, in the case where the number of inter-column non-printing ink points without charges is sufficient, only how to reduce the Coulomb force influence between the charged ink drops within the first to-be-printed column needs to be considered, and the optimization sorting is performed.

[0084] It can be seen that the implementation Figure 4 The ink point jet printing control device of the described inkjet printer can, for a jet printing scene with a slow production line speed, a real record of a large number of non-printing ink points between the last column of dots and the first to-be-printed column, and a focus on the inter-column non-printing ink points between the last column of dots and the first to-be-printed column, the first to-be-printed column itself, and the inter-column non-printing ink points between the first to-be-printed column and the second to-be-printed column, in combination with the specific inter-column non-printing ink point parameter, the inter-column non-printing condition, the initial ink point arrangement of the first to-be-printed column, and the judgment simulation analysis range rule in the preset adjustment rule, predict the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column. In this way, this range prediction mechanism that adapts to the low-speed jet printing scene not only reduces the invalid simulation of the last column of dots and the second to-be-printed column main body that are far away and have weak Coulomb force interference.

[0085] In yet another optional embodiment, the way in which the prediction module 302 predicts the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column according to the inter-column non-printing ink point parameter, the initial ink point arrangement of the first to-be-printed column, the inter-column non-printing condition, and the preset adjustment rule specifically includes: When the number of non-printing ink dots between columns is less than or equal to the preset number threshold in the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted according to the last column dot matrix, the column non-printing ink dot parameter, the initial ink dot arrangement of the first to-be-printed column, the column non-printing condition, the second to-be-printed column, and the preset adjustment rule.

[0086] It can be seen that the ink dot printing control device of the inkjet printer described in the embodiment Figure 4 The ink dot printing control device of the inkjet printer described in the embodiment can adapt to the printing scene in which the production line speed is fast and the number of non-printing ink dots between the last column dot matrix and the first to-be-printed column is small. By comprehensively considering the last column dot matrix, the column non-printing ink dots between the last column dot matrix and the first to-be-printed column, the first to-be-printed column itself, the column non-printing ink dots (column non-printing condition) between the first to-be-printed column and the second to-be-printed column, and the second to-be-printed column, and combining the specific column non-printing ink dot parameter, the column non-printing condition, the ink dot arrangement of the last column dot matrix, the initial ink dot arrangement of the first to-be-printed column, the initial ink dot arrangement of the second to-be-printed column, and the judgment simulation analysis range rule in the preset adjustment rule, the surrounding ink drop simulation arrangement range corresponding to the first to-be-printed column is predicted. In this way, the printing scene in which the production line speed is fast and the number of non-printing ink dots between the last column dot matrix and the first to-be-printed column is small is adapted by focusing on the key area related to the first to-be-printed column in the flight of jetting to define the surrounding ink drop simulation arrangement range, which reduces the invalid simulation of irrelevant areas and significantly improves the system operation efficiency. At the same time, based on the correlation analysis of the specific parameters of the initial ink dot arrangement of the first to-be-printed column and the simulated surrounding ink drop arrangement, the possible Coulomb force interference (including the Coulomb force interference between the charged ink drops inside and outside the first to-be-printed column) of the first to-be-printed column in the flight of jetting can be more accurately identified, so that the judgment of the ink dot arrangement adjustment of the first to-be-printed column is more targeted, the accuracy of the adjustment decision is effectively improved, and the printing effect is improved.

[0087] In yet another optional embodiment, the recording module 301 is further configured to: When the production line is started and the inkjet printer is ready to jet the first column dot matrix, the target column non-printing ink dot parameter between the first column dot matrix and the second column dot matrix waiting to be printed is determined and recorded according to the obtained current production line speed parameter; The prediction module 302 is further configured to obtain the initial ink dot arrangement of the first column dot matrix, and simulate the target ink drop simulation arrangement around the first column dot matrix in the flight of jetting of the first column dot matrix based on the initial ink dot arrangement of the first column dot matrix and the target column non-printing ink dot parameter. The judgment module 303 is further configured to judge whether the ink dot arrangement of the first column dot matrix needs to be adjusted according to the target ink drop simulation arrangement and the preset adjustment rule.

[0088] In this optional embodiment, it is noted that when the first column of dot matrix is completed, the first column of dot matrix is immediately updated to be "the last column of dot matrix", and the second column of dot matrix is updated to be "the first column to be printed".

[0089] Further, the ink dot printing control device of the inkjet printer can further comprise a charge compensation module (not shown in the figure). The charge compensation module calculates and stores compensation electric quantity for charging each pre-charged ink drop in the first to-be-printed column according to the comparison of the ink dot arrangement before and after adjustment of the first to-be-printed column and the comparison of the arrangement of each pre-charged ink drop before and after adjustment in the first to-be-printed column, so that each pre-charged ink drop is charged with corresponding compensated electric quantity when it is actually ejected and passes through the charging area, and each pre-charged ink drop is compensated and corrected in deflection angle according to the corresponding charged quantity after passing through the high-voltage electric field deflection area, so as to correct the pre-set position of the ejection on the printing target carrier and restore to the ink dot arrangement state of the first to-be-printed column before adjustment. It should be noted that the compensation electric quantity can be positive or negative. The present application adjusts the pre-charged ink dot position arrangement according to the pre-set adjustment rule, and then calculates the compensation electric quantity for the pre-charged ink drops with changed order to weaken the influence of the coulomb force between the charged ink drops (which are actually to be printed on the target carrier to form the mark), so that they can restore to the ink dot arrangement state before adjustment when finally printed on the target carrier. It should be noted that the continuous inkjet printer forms a pre-set mark by ejecting a plurality of charged ink dots to the target carrier in sequence, and a corresponding number of non-charged ink dots (inter-column non-printing ink dots, which are recycled by the nozzle and not ejected to the target carrier) are inserted between the columns according to the production line transmission speed value. When the last column has been printed, the next column cannot be printed until the production line moves the target carrier to the next to-be-printed position. If the production line transmission speed is slow, the waiting time will be longer, and the number of inter-column non-printing ink dots needs to be set accordingly. If the speed is fast, the waiting time will be shorter, and the number of inter-column non-printing ink dots needs to be set accordingly. Even the number of inter-column non-printing ink dots can be zero. Under normal operation, the transmission speed of the production line is approximately uniform and does not fluctuate greatly. Unless there is an emergency or a fault, the transmission speed of the production line will change suddenly. Because the number of inter-column non-printing ink dots is set based on the transmission speed of the production line, and under normal production operation, the transmission speed of the production line is approximately uniform, when the inkjet printer has finished printing the last column of dots, the inter-column non-printing ink dot parameter between the last column of dots and the first to-be-printed column is determined and recorded according to the current production line speed parameter, that is, the inter-column non-printing condition between the first to-be-printed column and the second to-be-printed column is predicted when the inkjet printer has not yet printed the first to-be-printed column. When the inkjet printer finishes printing the first to-be-printed column and prepares to print the second to-be-printed column, the inter-column non-printing ink dot parameter is set again according to the current real-time production line speed parameter. The two parameters are probably consistent.Even if the predicted inter-column non-printing condition with a small probability is inconsistent with the actual inter-column non-printing dot parameters (such as due to a sudden change in subsequent line speed caused by a small probability of abnormal conditions), at most, it will only cause poor printing effect due to inaccurate prediction this time, and subsequent re-prediction will be performed next time, so the subsequent prediction will not be accumulated and stored, so there will be no continuous error accumulation, and the printing error caused by the sudden change of the production line speed will not be accumulated and continued to the remaining products (target carriers). The present application adjusts the pre-charge dot position arrangement according to the preset adjustment rule, and then weakens the influence of the coulomb force between the charged ink drops (which are actually to be printed on the target carrier to form the mark) to improve the printing quality. Then, the pre-charge ink drops with changed order are calculated for compensation electric quantity, so that they can be restored to the expected unadjusted dot arrangement state when finally printed on the target carrier.

[0090] It can be seen that the implementation Figure 4 The ink dot printing control device of the inkjet printer described can be started for the production line, and in the initial printing scene of the inkjet printer, in view of the particularity of the first column of dots without a presequence reference, the target surrounding ink drop simulation arrangement range suitable for the initial printing scene is predicted by predicting the target inter-column non-printing dot parameters based on the current line speed, and the initial dot arrangement of the first column of dots is combined to simulate the surrounding target ink drop simulation arrangement of the first column of dots in the jet flight process, and the dot arrangement adjustment requirement of the first column of dots is judged combined with the preset adjustment rule. In this way, the blank of no historical printing data reference in the initial printing is filled, and the target surrounding ink drop simulation arrangement range corresponding to the first column of dots is predicted by focusing on the first column of dots itself and the predicted target inter-column non-printing dot, which improves the judgment coverage range and reduces invalid operation.

[0091] Embodiment four Please refer to Figure 5 , Figure 5 is another structure diagram of the ink dot printing control device of the inkjet printer disclosed in the embodiment of the present application. As Figure 5 indicated, the ink dot printing control device of the inkjet printer can include: a memory 401 storing executable program codes; a processor 402 coupled with the memory 401; The processor 402 calls the executable program codes stored in the memory 401 to execute the steps in the ink dot printing control method of the inkjet printer described in the embodiment one or the embodiment two of the present application.

[0092] Embodiment five The embodiment of the present application discloses a computer storage medium, which stores computer instructions, and the computer instructions are used to execute the steps in the ink dot printing control method of the inkjet printer described in the embodiment one or the embodiment two of the present application.

[0093] Embodiment six The embodiment of the present application discloses an inkjet printer, which is used to execute the steps in the ink dot printing control method of the inkjet printer described in the embodiment one or the embodiment two of the present application.

[0094] Embodiment seven The embodiment of the present application discloses a computer program product, which comprises a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the steps in the ink dot printing control method of the inkjet printer described in the embodiment one or the embodiment two.

[0095] The above described device embodiments are only schematic, wherein the modules described as separated components can or can not be physically separated, and the components displayed as modules can or can not be physical modules, i.e., can be located in one place, or can be distributed on multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0096] Those skilled in the art can clearly understand the implementation of the various embodiments by means of software and the necessary general hardware platform through the above specific description of the embodiments, and of course, the embodiments can also be implemented by hardware. Based on such understanding, the above technical solutions, essentially or in other words, the part of the prior art that makes a contribution, can be embodied in the form of a software product, and the computer software product can be stored in a computer readable storage medium, including a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage, a magnetic tape storage, or any other computer readable medium that can be used to carry or store data.

[0097] Finally, it should be noted that: the ink point printing control method and device of the ink-jet printer disclosed by the embodiments of the present application are only the preferred embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling ink droplet printing in an inkjet printer, characterized in that, The method includes: When the inkjet printer finishes printing the previous column of dots, it determines and records the non-printing ink dot parameters between the previous column of dots and the first column to be printed, based on the obtained current production line speed parameters. The non-printing ink droplet parameter between columns is predicted to be the non-printing situation between the first column to be printed and the adjacent second column to be printed, so as to simulate the arrangement of ink droplets around the first column to be printed during the jetting process. Based on the simulated ink droplet arrangement and the preset adjustment rules, determine whether it is necessary to adjust the ink droplet arrangement of the first column to be printed.

2. The ink dot printing control method for an inkjet printer according to claim 1, characterized in that, The inter-column non-printing ink dot parameter includes at least the number of inter-column non-printing ink dots; The simulation of the ink droplet arrangement around the first column to be printed during jetting includes: Obtain the initial ink dot arrangement of the first column to be printed; Based on the non-printing ink droplet parameters between columns, the initial ink droplet arrangement of the first column to be printed, the non-printing conditions between columns, and the preset adjustment rules, the simulated arrangement range of surrounding ink droplets corresponding to the first column to be printed is predicted. Based on the simulated distribution range of surrounding ink droplets, the simulated distribution of ink droplets around the first column to be printed is simulated during the jetting process.

3. The ink dot printing control method for an inkjet printer according to claim 2, characterized in that, The step of predicting the simulated distribution range of surrounding ink droplets corresponding to the first column to be printed based on the initial ink droplet arrangement of the first column to be printed, the non-printing ink droplet parameters between columns, the non-printing conditions between columns, and preset adjustment rules includes: When the number of non-printing ink dots between columns is 0, the simulated distribution range of surrounding ink droplets corresponding to the first column to be printed is predicted based on the previous column dot matrix, the initial ink dot arrangement of the first column to be printed, the second column to be printed, and the preset adjustment rules.

4. The ink dot printing control method for an inkjet printer according to claim 2, characterized in that, The step of predicting the simulated distribution range of surrounding ink droplets corresponding to the first column to be printed based on the initial ink droplet arrangement of the first column to be printed, the non-printing ink droplet parameters between columns, the non-printing conditions between columns, and preset adjustment rules includes: When the number of non-printing ink dots between columns is greater than the preset number threshold in the preset adjustment rules, the simulated arrangement range of surrounding ink droplets corresponding to the first column to be printed is predicted based on the non-printing ink dot parameters between columns, the initial ink dot arrangement of the first column to be printed, the non-printing situation between columns, and the preset adjustment rules.

5. The ink dot printing control method for an inkjet printer according to claim 2, characterized in that, The step of predicting the simulated distribution range of surrounding ink droplets corresponding to the first column to be printed based on the initial ink droplet arrangement of the first column to be printed, the non-printing ink droplet parameters between columns, the non-printing conditions between columns, and preset adjustment rules includes: When the number of non-printing ink dots between columns is less than or equal to the preset number threshold in the preset adjustment rule, the simulated arrangement range of surrounding ink droplets corresponding to the first column to be printed is predicted based on the previous column dot matrix, the non-printing ink dot parameters between columns, the initial ink dot arrangement of the first column to be printed, the non-printing situation between columns, the second column to be printed, and the preset adjustment rule.

6. The ink dot printing control method for an inkjet printer according to any one of claims 1-5, characterized in that, The method further includes: When the inkjet printer is ready to spray the first column of dot matrix, it determines and records the target column non-printing ink dot parameters between the first column of dot matrix and the second column of dot matrix waiting to be printed based on the obtained current production line speed parameters. The initial ink dot arrangement of the first column dot array is obtained, and based on the initial ink dot arrangement of the first column dot array and the non-printing ink dot parameters between the target columns, the simulated arrangement of target ink droplets around the first column dot array during the jetting flight is simulated. Based on the simulated arrangement of the target ink droplets and the preset adjustment rules, determine whether it is necessary to adjust the ink droplet arrangement of the first column of dots.

7. The ink dot printing control method for an inkjet printer according to any one of claims 1-5, characterized in that, The method further includes: When it is determined that the ink dot arrangement of the first column to be printed needs to be adjusted, the ink dot arrangement of the first column to be printed is adjusted to obtain the adjusted ink dot arrangement of the first column to be printed. Based on the ink dot arrangement of the first column to be printed and the adjusted ink dot arrangement of the first column to be printed, a comparison of the ink dot arrangement before and after adjustment of the first column to be printed is determined. Based on the comparison of the ink dot arrangement before and after adjustment of the first column to be printed, the compensation amount for charging each pre-charged ink droplet that has been adjusted in the first column to be printed is calculated and stored, so that the ink droplets after charging compensation of the first column to be printed can be controlled for printing, and the ink dot arrangement of the first column to be printed can be restored to the state before adjustment on the printing target carrier.

8. The ink dot printing control method for an inkjet printer according to claim 7, characterized in that, The method further includes: After the inkjet printer finishes printing the first column to be printed, the first column to be printed is updated to the previous column of dot matrix, and the second column to be printed is updated to the first column to be printed. Then, the operation of determining and recording the non-printing ink dot parameters between the previous column of dot matrix and the first column to be printed is triggered again based on the obtained current production line speed parameters.

9. An ink dot printing control device for an inkjet printer, characterized in that, The device includes: The recording module is used to determine and record the non-printing ink dot parameters between the previous column of dot matrix and the first column to be printed, based on the obtained current production line speed parameters, when the inkjet printer finishes spraying the previous column of dot matrix. The prediction module is used to predict the non-printing ink droplet parameters between columns as the non-printing situation between the first column to be printed and the adjacent second column to be printed, so as to simulate the arrangement of ink droplets around the first column to be printed during the jetting process. The judgment module is used to determine whether the ink droplet arrangement of the first column to be printed needs to be adjusted based on the simulated ink droplet arrangement and the preset adjustment rules.

10. An ink dot printing control device for an inkjet printer, characterized in that, The device includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the ink dot printing control method of the inkjet printer as described in any one of claims 1-8.

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