阅读说明：本技术 一种喷墨头喷嘴轮换的控制方法及喷墨打印机 (Ink jet head nozzle alternation control method and ink jet printer ) 是由 梁国强 李国育 卢国钊 梁岐江 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种喷墨头喷嘴轮换的控制方法及喷墨打印机,喷墨头喷嘴轮换的控制方法包括以下步骤：开机后使用喷嘴M-1～M-m打印第一行,M-m表示第m个喷嘴,m＜n,n为喷墨头的喷嘴总数；轮换到第a*i+1个喷嘴,控制走纸量,使用喷嘴M-(a*i+1)～M-(a*i+m)打印第i+1行,i为大于等于1的正整数,a为喷嘴跳动的间隔数,a为大于等于1的正整数,a*i+m≤n。每一行同时使用m个喷嘴喷印,利用喷嘴轮换打印代替由固定的喷嘴打印,能有效的保证打印速度不损耗,降低某些喷嘴的使用率,有效地延长喷嘴的整体使用寿命。(The invention discloses a control method for ink jet head nozzle alternation and an ink jet printer, wherein the control method for ink jet head nozzle alternation comprises the following steps: using the nozzle M after starting 1 ～M m Printing of the first line, M m M < n, n being the total number of nozzles of the ink jet head; rotating to the a x i +1 th nozzle, controlling paper feeding amount, and using nozzle M a*i+1 ～M a*i+m Printing an i +1 th line, wherein i is a positive integer larger than or equal to 1, a is the interval number of nozzle jumping, a is a positive integer larger than or equal to 1, and a x i + m is less than or equal to n. Each row of the nozzles are simultaneously sprayed and printed by using m nozzles, and the nozzles are alternately printed to replace fixed nozzles, so that the printing speed can be effectively guaranteed not to be lost, the utilization rate of certain nozzles is reduced, and the whole service life of the nozzles is effectively prolonged.)

1. A method for controlling nozzle rotation of an ink jet head, comprising the steps of:

using the nozzle M after starting₁～M_mPrinting of the first line, M_mDenotes the m-th nozzle, m<n, n is the total number of nozzles of the ink jet head;

rotating to the a x i +1 th nozzle, controlling paper feeding amount, and using nozzle M_a*i+1～M_a*i+mPrinting an i +1 th line, wherein i is a positive integer larger than or equal to 1, a is the interval number of nozzle jumping, a is a positive integer larger than or equal to 1, and a x i + m is less than or equal to n.

2. A method of controlling nozzle rotation of an ink jet head according to claim 1, wherein the nozzles M₁～M_nIs arranged in a direction opposite to the direction of the paper feed.

3. A method of controlling nozzle rotation of an inkjet head according to claim 2, wherein the distance between each row is m x k, k being the spacing between two nozzles, k being greater than 0.

4. A method of controlling nozzle rotation of an inkjet head according to claim 3, wherein controlling a paper feed amount includes: controlling the paper feed (M-a) k so that the nozzles M_a*i+1At the start of row i + 1.

5. A method of controlling nozzle rotation of an inkjet head according to claim 1, further comprising offset inkjet printing a line with two adjacent nozzles during each line of printing.

6. A method of controlling nozzle rotation of an inkjet head according to claim 1, further comprising:

when a + i + m>n, all nozzles are alternated, the 1 st nozzle is alternated again, the paper feeding amount is controlled, and the nozzle M is used₁-M_mPrinting the (i +1) th line;

and continuing to rotate to the 1+ a th nozzle, controlling the paper feeding amount to continuously print the (i + 2) th row, and continuing to rotate the nozzles until printing is finished or all the nozzles are rotated and then rotating to the 1 st nozzle again.

7. A method of controlling nozzle rotation of an inkjet head according to claim 1, wherein a takes a value of 1, 2 or 3.

8. A method according to claim 1, wherein said nozzle M is used after starting up₁-M_mBefore printing the first line, the inkjet head nozzle is set to alternate the printing mode, the values of m, a are set, and stored.

9. An inkjet printer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of controlling inkjet head nozzle rotation according to any one of claims 1 to 9 when executing the computer program.

10. A computer storage medium storing computer-executable instructions for causing a computer to execute the method of controlling inkjet head nozzle rotation according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of printer printing output control, in particular to a control method for ink-jet head nozzle alternation and an ink-jet printer.

Background

Inkjet printing refers to a technique of ejecting ink droplets through nozzles on a head onto a printing medium to obtain an image or text. An inkjet head of an inkjet printer generally includes a large number of nozzles (several hundred nozzles are common), and has a high resolution. For some applications, such as hospital documentation, the throughput is huge, and the printed content is usually fixed form lines, and different patient information is in the form. The conventional printing method is to simultaneously jet print n nozzles of an inkjet head per line. The form lines for each patient information are printed from fixed nozzles, which results in some nozzles being extremely high in usage, prone to degradation and damage.

Disclosure of Invention

The invention provides a control method for ink jet head nozzle alternation and an ink jet printer, which are used for solving one or more technical problems in the prior art and at least providing a beneficial selection or creation condition. .

In a first aspect, an embodiment of the present invention provides a method for controlling nozzle rotation of an inkjet head, including the steps of:

using the nozzle M after starting₁～M_mPrinting of the first line, M_mDenotes the m-th nozzle, m<n, n is the total number of nozzles of the ink jet head;

rotating to the a x i +1 th nozzle, controlling paper feeding amount, and using nozzle M_a*i+1～M_a*i+mPrinting an i +1 th line, wherein i is a positive integer larger than or equal to 1, a is the interval number of nozzle jumping, a is a positive integer larger than or equal to 1, and a x i + m is less than or equal to n.

Further, the nozzle M₁～M_nIs arranged in a direction opposite to the direction of the paper feed.

Further, the distance between each row is m × k, k is the spacing between two nozzles, and k is greater than 0.

Further, controlling the paper feed amount includes: controlling the paper feed (M-a) k so that the nozzles M_a*i+1At the start of row i + 1.

Further, the method includes using two adjacent nozzles to offset the inkjet printed lines during each line of printing.

Further, the method further comprises:

when a + i + m>n, all nozzles are alternated, the 1 st nozzle is alternated again, the paper feeding amount is controlled, and the nozzle M is used₁-M_mPrinting the (i +1) th line;

and continuing to rotate to the 1+ a th nozzle, controlling the paper feeding amount to continuously print the (i + 2) th row, and continuing to rotate the nozzles until printing is finished or all the nozzles are rotated and then rotating to the 1 st nozzle again.

Further, a takes the value of 1 or 2 or 3.

Further, the nozzle M is used after starting up₁-M_mBefore printing the first line, the inkjet head nozzle is set to alternate the printing mode, the values of m, a are set, and stored.

In a second aspect, embodiments of the present invention further provide an inkjet printer, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement the method for controlling nozzle rotation of an inkjet head according to the first aspect.

In a third aspect, the embodiment of the present invention further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to cause a computer to execute the control method according to the first aspect.

The method for controlling the nozzle alternation of the ink-jet head and the ink-jet printer provided by the embodiment of the invention at least have the following beneficial effects: each row of the nozzles are simultaneously sprayed and printed by using m nozzles, and the nozzles are alternately printed to replace fixed nozzles, so that the printing speed can be effectively guaranteed not to be lost, the utilization rate of certain nozzles is reduced, and the whole service life of the nozzles is effectively prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a flowchart of a method for controlling nozzle rotation of an inkjet head according to an embodiment of the present invention;

FIG. 2(a) is a diagram of prior art printout effect.

Fig. 2(b) is a diagram of the print output effect of the method for controlling nozzle rotation of the inkjet head according to the embodiment of the present invention.

Fig. 3 is an ink jet printer according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that although functional block divisions are provided in the system drawings and logical orders are shown in the flowcharts, in some cases, the steps shown and described may be performed in different orders than the block divisions in the systems or in the flowcharts. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Fig. 1 is a method for controlling nozzle rotation of an inkjet head according to an embodiment of the present invention, including the following steps:

s11, using the nozzle M after starting₁～M_m(nozzles #1 to # M) printing the first line, M_mDenotes the m-th nozzle, m<n, n is the total number of nozzles of the ink jet head;

s12, rotating to the a x i +1 th nozzle, controlling the paper feeding amount, and using the nozzle M_a*i+1～M_a*i+m(nozzles with numbers # a + i +1 to # a + i + m) print row i +1, i is a positive integer greater than or equal to 1, a is the interval number of nozzle runout, a is a positive integer greater than or equal to 1, and a + i + m is less than or equal to n.

Further, the nozzle M₁～M_nIs arranged in a direction opposite to the direction of the paper feed.

Further, the distance between each row is m × k, k is the spacing between two nozzles, and k is greater than 0.

Further, controlling the paper feed amount includes: controlling the paper feed (M-a) k so that the nozzles M_a*i+1At the start of row i + 1.

Wherein, when the line 2 is printed, i +1 line to be printed is more than or equal to 3, the paper feeding (M-a) k comprises two parts, the first part is the paper feeding compensation, and the paper feeding offset is enabled to be M₁At the start position of the ith line, the second portion is the amount of paper feed, which is fed so that M_a*iAt the starting position of the (i +1) th line, the total paper advance of the first portion and the second portion is (m-a) × k.

Further, the method includes using two adjacent nozzles to offset the inkjet printed lines during each line of printing. The distance between every two nozzles is small, the image resolution is high, lines formed by a single nozzle can be ejected by using adjacent nozzles in a staggered mode, so that the working time of the single nozzle can be shortened, the whole service life of the nozzle is further effectively prolonged, and the lines cannot be identified by human eyes.

Further, when a + i + m>n, all nozzles are alternated, the 1 st nozzle is alternated again, the paper feeding amount is controlled, and the nozzle M is used₁～M_mPrinting the (i +1) th line;

continuing to alternate to the 1+ a-th nozzle, controlling the paper feeding amount and using M_1+a～M_m+aContinuously printing the (i + 2) th line, continuously rotating to the nozzle 2a +1, controlling the paper feeding amount, and using M_2a+1～M_2a+mAnd continuing to rotate the nozzles until printing i +3, and rotating to the 1 st nozzle again until printing is finished or all nozzles are rotated.

Further, the above-mentioned nozzle M is used after starting up₁-M_mBefore printing the first line, the inkjet head nozzle is set to alternate the printing mode, the values of m, a are set, and stored.

Further, a takes the value of 1 or 2 or 3. When a is 1, the first line is printed with nozzles #1 to # m, the second line is printed with nozzles #2 to # m +1, the third line is printed with nozzles #3 to # m +2, and so on, the I +1 th line is printed with nozzles # I +1 to # I + m.

When a is 2, the first line is printed with nozzles #1 to # m, the second line is printed with nozzles #3 to # m +2, the third line is printed with nozzles #5 to # m +4, and so on, the i +1 th line is printed with nozzles #2i +1 to #2i + m.

When a is 3, the first line is printed with nozzles #1 to # m, the second line is printed with nozzles #4 to # m +3, the third line is printed with nozzles #7 to # m +6, and so on, the i +1 th line is printed with nozzles #3i +1 to #3i + m.

Taking the value of a as 1 for example, the method for controlling the nozzle alternation of the ink-jet head comprises the following steps:

and S21, setting the number of nozzles for simultaneous jet printing to be m, setting the space between two adjacent nozzles to be k, and setting the space between the rows to be m x k.

When the control method of nozzle rotation printing is not performed, the fixed paper feed amount between the rows is m × k.

S22, after starting, printing by using nozzles with numbers #1 to # m in the first line, and not feeding paper for the time being;

s23, before printing a second line, adjusting the paper feeding amount, feeding paper (m-1) × k, printing the content of the current second line after the paper feeding is finished, and recording the offset k of the second line;

since this line is printed using the nozzles of numbers #2 to #1 (m +1), the number #2 nozzle needs to be moved from the position of the first line to the start position of the second line, and hence paper (m-1) × k is required to be transported. Since the sheet feeding amount (m-1) × k is reduced by k compared to m × k, the offset amount is k after the second line printing is completed, and sheet feeding compensation is required before the third line printing.

S24, before printing a third line, adjusting the paper feeding amount, feeding paper (m-1) × k, printing the content of the current third line after the paper feeding is finished, and recording the offset 2k of the third line;

after the second line is printed, the offset of the second line is k, the paper feeding k carries out paper feeding compensation, at this time, the nozzle with the number #1 is located at the initial position of the second line, before the third line is printed, paper (m-2) k) is fed again, so that the nozzle with the number #3 is located at the initial position of the third line, after the second line is printed, before the third line is printed, the total paper (m-1) k) is printed, after the paper feeding is finished, the current content of the third line is printed, because the nozzle with the number #3 is located at the initial position of the third line, when the nozzle is not printed in a rotating mode, the nozzle with the number #1 is located at the initial position of the third line, the paper feeding amount is reduced by 2k, and the offset 2k of the third line is recorded.

S25, before printing the fourth line, adjusting the paper feeding amount, feeding paper (m-1) k, printing the content of the current fourth line after paper feeding is finished, and recording the offset 3k of the fourth line;

after the third line is printed, the offset of the third line is 2k, the paper feeding compensation is carried out on the paper feeding 2k, at this time, the nozzle with the number #1 is located at the initial position of the third line, before the fourth line is printed, the paper feeding (m-3) k is carried out again, so that the nozzle with the number #4 is located at the initial position of the fourth line, after the third line is printed, before the fourth line is printed, the total paper feeding (m-1) k is carried out, after the paper feeding is finished, the content of the current fourth line is printed, because the nozzle with the number #4 is located at the initial position of the fourth line, when the nozzle alternation printing is not carried out, the nozzle with the number #1 is located at the initial position of the fourth line, the paper feeding amount is reduced by 3k, and the offset 3k of.

And S26, analogizing, adjusting the paper feeding amount before the t-th line is printed, feeding paper (m-1) k, printing the content of the current t-th line after the paper feeding is finished, and recording the offset (t-1) k of the i-th line, wherein t is a positive integer which is greater than or equal to 5 and less than or equal to n-m + 1.

And S27, continuing to rotate the nozzles, adjusting the paper feeding amount and feeding n x k after all the nozzles rotate once, printing by using the nozzles with the numbers of #1 to # m after paper feeding is finished, continuing to rotate the nozzles according to the numbers of the nozzles for printing, and so on.

In addition, the distance between every two nozzles is small, the image resolution is high, lines formed by printing of a single nozzle originally can be printed by using adjacent nozzles in a staggered inkjet mode, the working time of the single nozzle can be shortened, and the lines cannot be identified by human eyes.

The printout effect diagram of the prior art is shown in fig. 2(a), i.e., the dots 11, 12, 13, and 14 of the first row are printed by the nozzle #1, the dots 21, 22, 23, and 24 of the second row are printed by the nozzle #1, and so on, and the dots 31, 32, 33, and 34 of the n-m th row are printed by the nozzle # 1. The first row of dots 15, 16, 17 and 18 is printed by nozzle #3, the second row of dots 25, 26, 27 and 28 is printed by nozzle #3, and so on, and the n-m rows of dots 35, 36, 37 and 38 are printed by nozzle # 3.

The output effect diagram of the control method for nozzle alternation of the inkjet head according to the present invention is shown in fig. 2(b), in which dots 11 and 13 in the first row are printed by the nozzle #1, and dots 12 and 14 in the first row are printed by the nozzle # 2. Originally, the dot 11, the dot 12, the dot 13 and the dot 14 printed by the nozzle #1 are printed by the staggered ink jet printing of the nozzle #1 and the nozzle #2, because the distance between every two nozzles is small, the image resolution is high, and the human eyes can still see that the dot 11, the dot 12, the dot 13 and the dot 14 are in the same straight line, so that the working time of a single nozzle can be reduced, the utilization rate of certain nozzles is further reduced, and the whole service life of the nozzle is effectively prolonged.

The second row of dots 21 and 23 is printed by nozzle #2, the second row of dots 22 and 24 is printed by nozzle #3, and so on, the n-m th row of dots 31 and 33 is printed by nozzle # n-m, and the n-m th row of dots 32 and 34 is printed by nozzle # n-m + 1.

Dots 15 and 17 of the first row are printed by nozzle #3, dots 16 and 18 of the first row are printed by nozzle #4, dots 25 and 27 of the second row are printed by nozzle #4, dots 26 and 28 of the first row are printed by nozzle #5, and so on, dots 35 and 37 of the n-m th row are printed by nozzle # n-m +2, and dots 36 and 38 of the n-m th row are printed by nozzle # n-m + 3.

It can be seen that the dots printed by the nozzle #1 are wrongly distributed to the nozzles #1 to # n-m, i.e., the first n-m nozzles for printing, and the dots printed by the nozzle #3 are wrongly distributed to the nozzles #3 to # n-m +3 for printing. The printing speed can be effectively guaranteed not to be lost, and the service life of the nozzle is prolonged.

Another embodiment of the present invention provides an inkjet printer, as shown in fig. 3, including a processor 31, a memory 32, and a computer program stored on the memory and executable on the processor 31, where the processor 31 implements the method for controlling inkjet head nozzle rotation as in the above embodiments when executing the computer program.

Another embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to execute the method of controlling inkjet head nozzle rotation in the above-described embodiments.

One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.