CN1796124A - Printing correction device and method of inkjet head - Google Patents

Abstract

The invention relates to a printing correction device and method for an ink gun, wherein the printing correction method for the ink gun comprises the following steps: detecting the skew direction of the ink-jet head. Receiving a plurality of line data, wherein each line data corresponds to the nozzles of each line on the ink jet head from top to bottom, and each line data is divided into N sections from top to bottom. And printing and correcting the continuous N line data in the line data, and transmitting the corrected line data to the ink jet head for printing. The invention improves the printing result and further improves the printing quality.

Description

Printing correction device and method of inkjet head

technical field

The present invention is an invention related to an inkjet head, in particular to a printing correction method and device for an inkjet head.

Background technique

After an inkjet printer has been used for a period of time, it may be found that the printed data will be skewed. Therefore, it is necessary to use a printing correction method or device to improve this situation. With the current design of printers, the ink cartridge and the inkjet head are mostly combined. Consumers can also replace the inkjet head every time the ink cartridge is replaced to avoid inkjet head clogging. Theoretically, when the inkjet head is inserted into the printer, the inkjet head should be perpendicular to the printer's printing drive shaft (print bar), but it may be due to the error of the printer itself or the error caused by the user when placing the inkjet head into the printer. , so that the inkjet head and the printing transmission shaft have an inclined angle, causing the graphics that should be straight lines to become oblique lines during printing, and the printing quality is thus reduced.

A known method for correcting the printing of an inkjet head is to control the signal input to the pixel selection line in a manner of delaying firing, and to perform proper delaying of firing to achieve the corrected printing quality. First send the test sample to the printer for printing test, and then use the optical sensor to detect the error displacement of the printing test. Then calculate a delay time constant according to the measured error displacement. When the voltage input to the address line of the inkjet head is high, the voltage input to the pixel selection line is pulsed at a position according to the delay time constant. (position pulse) time, make the inkjet head make a proper delay of inkjet, and correct the quality of printing.

The known method for calibrating the printing of the inkjet head is to implement software in the printer system, but this will cause an overload of the printer system and affect the printing speed. Moreover, the application of this method must install an optical sensor on the printer, which increases the cost of the printer, and the known technology needs to add a delay time outside the pulse time of each position, resulting in a reduction in printing speed.

Contents of the invention

In view of this, the purpose of the present invention is to provide a new printing correction method, after dividing the multiple row data sent to the inkjet head for printing into a plurality of sections, after reorganizing, then sending it to the inkjet head for printing, so as to To achieve the purpose of inkjet head printing correction.

Another object of the present invention is to provide another printing correction method, after dividing a plurality of rows of data sent to the inkjet head for printing into a plurality of sections, time-sharing printing is performed for each section, and the entire printing time is not longer than The original printing time, in order to achieve the purpose of inkjet head printing correction.

Therefore, the present invention provides a printing correction method for an inkjet head, comprising: receiving a plurality of row data (column data), each row of data corresponding to each row of nozzles on the inkjet head from top to bottom, and converting each row of data From top to bottom, it is divided into the first to Nth sections. Perform printing correction for the continuous N rows of data in the row data: when the inkjet head is tilted to the right, take out the first section of the first row of data, the second section of the second row of data section, the third section of the third line data, and so on to the Nth section of the Nth line data, which are sent to the inkjet head for printing. And when the skew direction of the inkjet head is tilted to the left, take out the Nth segment of the first line of data, the (N-1)th segment of the second row of data, the third segment of the third row of data (N-2) sections, and so on to the first section of the Nth row of data, which is sent to the inkjet head for printing.

In the printing correction method of the inkjet head according to the present invention, N is greater than or equal to 2.

In the printing correction method of the inkjet head according to the present invention, the step of detecting the skew direction of the inkjet head includes: receiving and printing a print test data; and comparing the printing results to obtain a skew direction of the inkjet head and an inkjet head skew direction Amount of skew displacement.

In the printing correction method of the inkjet head according to the present invention, the value of N is determined according to the skew displacement of the inkjet head.

In the inkjet head printing correction method described in the present invention, the nozzle is driven by a plurality of address signals and a plurality of pixel selection signals, and the nozzle is divided into a plurality of blocks by the pixel selection signal.

In the printing correction method of the inkjet head according to the present invention, in the step of dividing each row of data into N sections from top to bottom, each section corresponds to an integer number of blocks.

The present invention provides another printing correction method of an inkjet head, comprising: receiving a row of data (column data), and the row of data corresponds to the nozzles of the row of the inkjet head from top to bottom. Detect the skew direction of the inkjet head. Divide each row of data from top to bottom into the first to Nth segments. When the inkjet head is tilted to the left, within a printing cycle t _p , the first segment of the row of data The section is sent to the inkjet head for printing, and the second section of the line of data is sent to the inkjet head for printing after the first section of the row of data is printed, and so on until the first section of the row of data is printed. The Nth segment of the row data is sent to the inkjet head for printing, and the printing of the row data is completed. And when the tilt direction of the inkjet head is tilted to the right, within a printing cycle _tp , the Nth section of the line of data is sent to the inkjet head for printing, and the Nth section of the line of data is to be printed. After the section is printed, the (N-1)th section of the line of data is sent to the inkjet head for printing, and so on until the first section of the line of data is sent to the inkjet head for printing , to complete the printing of the row of data.

In the printing correction method of the inkjet head according to the present invention, N is greater than or equal to 2.

In the printing correction method of the inkjet head according to the present invention, the step of detecting the skew direction of the inkjet head includes: receiving and printing a print test data; and comparing the printing results to obtain a skew direction of the inkjet head and an inkjet head skew direction Amount of skew displacement.

In the printing correction method of the inkjet head according to the present invention, the value of N is determined according to the skew displacement of the inkjet head.

In the inkjet head printing correction method described in the present invention, the nozzle is driven by a plurality of address signals and a plurality of pixel selection signals, and the nozzle is divided into a plurality of blocks by the pixel selection signal.

In the printing correction method of the inkjet head according to the present invention, in the step of dividing each row of data into N sections from top to bottom, each section corresponds to an integer number of blocks.

In the printing correction method of the inkjet head described in the present invention, the printing time of each segment of the line of data is less than or equal to t _p /N.

The present invention further provides a print correction device for an inkjet head, including a printing module that receives a print data and converts it into a plurality of line data, wherein each line of data corresponds to a row of nozzles on an inkjet head from top to bottom. A calibration module receives a test printing data and outputs a printing calibration information, wherein the printing calibration information includes a printing calibration direction. A print calibration module, receiving the row of data and the print calibration direction, and performing a print calibration program on the inkjet head, the print calibration program includes the following steps: dividing each row of data into N segments from top to bottom , and perform printing correction on consecutive N rows of data among the row data. When the tilt direction of the inkjet head is tilted to the right: take out the first section of the first line of data, the second section of the second line of data, and the third section of the third line of data, By analogy, the Nth segment of the Nth line data is sent to the inkjet head for printing. When the skew direction of the inkjet head is tilted to the left: take out the Nth segment of the first row of data, the (N-1)th segment of the second row of data, and the (Nth segment) of the third row of data ( N-2) sections, and so on to the first section of the Nth row of data, which is sent to the inkjet head for printing.

In the inkjet head printing correction device according to the present invention, N is greater than or equal to 2.

In the print calibration device of the inkjet head according to the present invention, the value of N is determined according to the skew displacement of the inkjet head.

In the inkjet head printing calibration device described in the present invention, the nozzle is driven by a plurality of address signals and a plurality of pixel selection signals, and the nozzle is divided into a plurality of blocks by the pixel selection signal.

In the print calibration device of the inkjet head according to the present invention, in the step of dividing each line of data into N sections from top to bottom, each section corresponds to an integer number of blocks.

The present invention further provides another printing correction device for an inkjet head, which includes a printing module that receives a print data and converts it into a plurality of lines of data, wherein each line of data corresponds to a row of nozzles on an inkjet head from top to bottom . A calibration module receives a test printing data and outputs a printing calibration information, wherein the printing calibration information includes a printing calibration direction. A print calibration module, receiving the row of data and the print calibration direction, and performing a print calibration program on the inkjet head, the print calibration program includes the following steps: dividing each row of data into N segments from top to bottom , and perform printing correction on consecutive N rows of data among the row data. When the tilt direction of the inkjet head is tilted to the right: within a printing cycle t _p , the Nth section of the line of data is sent to the inkjet head for printing, and the Nth section of the line of data is waited for After printing, the (N-1)th section of the line of data is sent to the inkjet head for printing, and so on until the first section of the line of data is sent to the inkjet head for printing, Complete the printing of the row of data. When the tilt direction of the inkjet head is tilted to the left: within a printing cycle t _p , the first section of the line of data is sent to the inkjet head for printing, and the first section of the line of data is waited for After printing, the second section of the row of data is sent to the inkjet head for printing, and so on until the Nth section of the row of data is sent to the inkjet head for printing, and the row of data is completed of the print.

In the inkjet head printing correction device according to the present invention, N is greater than or equal to 2.

In the print calibration device of the inkjet head according to the present invention, the value of N is determined according to the skew displacement of the inkjet head.

In the inkjet head printing calibration device described in the present invention, the nozzle is driven by a plurality of address signals and a plurality of pixel selection signals, and the nozzle is divided into a plurality of blocks by the pixel selection signal.

In the print calibration device of the inkjet head according to the present invention, in the step of dividing each line of data into N sections from top to bottom, each section corresponds to an integer number of blocks.

In the inkjet head printing correction device according to the present invention, the printing time of each segment of the line of data is less than or equal to t _p /N.

Compared with the prior art, the present invention can improve the printing skew and further improve the printing quality.

Description of drawings

Figure 1a is a schematic diagram of skew detection of an inkjet pattern;

Figure 1b is a schematic diagram of an inkjet head;

Fig. 1c is a graph under the normal printing of an inkjet head;

Fig. 2 is the printing situation when an inkjet head is inclined to the left;

Fig. 3 is a schematic diagram according to an embodiment of the present invention;

Fig. 4 is a schematic diagram according to another embodiment of the present invention;

Fig. 5 is a schematic diagram according to another embodiment of the present invention;

Fig. 6 is the printing situation when an inkjet head is tilted to the right;

Fig. 7 is a schematic diagram according to an embodiment of the present invention;

Fig. 8 is a schematic diagram according to another embodiment of the present invention;

Fig. 9 is a schematic diagram according to another embodiment of the present invention;

Fig. 10 is a functional block diagram of an ink jet head to which the print correction device of the present invention is applied.

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, the preferred embodiments of the present invention are specially enumerated below, and in conjunction with the attached drawings, the detailed description is as follows:

Figure 1a is a schematic diagram of inkjet image skew detection, where 10a is the pattern printed by the inkjet head after receiving a test print data under normal conditions, and 10b is the print after receiving a test print data when the inkjet head is skewed graphics. In Figure 1a, area I is the printing situation where the inkjet head does not receive any displacement correction, and area II is the inkjet head that accepts different displacements in the right or left direction and does not receive any displacement. After printing the result. In this figure, the inkjet head receives one, two, and three dpi displacements to the right (shown as +1, +2, and +3 on the picture), and one, two, and three dpi to the left (shown as -1, -2 and -3), and the line marked with 0 means that no displacement was accepted. In 10a , among the lines in area I and area II, the lines marked with 0 can be connected together, which means that the inkjet head is normal and does not need to be calibrated. In 10b , among the lines in area I and area II, the lines marked +1 can be connected together, which means that the inkjet head is skewed to the left, and the skew displacement is 1 dpi. By means of the above method, it can be known whether the inkjet head is skewed, as well as the direction of the skew and the amount of skew displacement.

FIG. 1b is a schematic diagram of an inkjet head, and 0-3F in the figure represent each nozzle. In this figure, the inkjet head has two rows of nozzles, which are controlled by address signals (A1~A8) and pixel selection signals (PS1~PS8) respectively, and the first row of nozzles are pixel selection signals PS1, PS3, PS5 and PS7 It is composed of address signals A1-A8, and the second row of nozzles is composed of pixel selection signals PS2, PS4, PS6 and PS8 in conjunction with address signals A1-A8. And each row of nozzles can be controlled by multiple banks. Each bank is composed of a pixel selection signal and address signals A1~A8. In the same bank during printing, only There is an address signal action. When the inkjet head prints, the address signal A1 is enabled first, and then the pixel selection signal corresponding to the nozzle to be printed is enabled, and so on to the address signal A8. The step of dividing each row of data corresponding to each nozzle on the inkjet head into multiple segments will be mentioned later in this specification. In this step, the division of segments must include an integer number of blocks, and cannot There are cases where a certain block is divided into different sections.

Figure 1c is a pattern printed by an inkjet head under normal conditions. Under normal printing, the inkjet head 11 is perpendicular to the moving direction 13 of the inkjet head. At this time, each nozzle (nozzle) 12 on the inkjet head is all dripping ink (firing) when the same position pulse (position pulse), just can get A straight line graph, where the time of each position pulse is t_p. The following embodiments are all described with the inkjet head 11 having two rows of nozzles 12 , and when all the nozzles 12 on each row of nozzles 12 are pulsed at each position, the printing situation of all drops of ink is described.

Fig. 2 is a printing situation when an inkjet head is inclined to the left. Because the inkjet head 11 is inclined to the left, the result of the printing of the two rows of nozzles 12 that should be perpendicular to the moving direction 13 of the inkjet head is a straight line skewed to the left. In order to correct such a printing result, the present invention proposes an inkjet head The printing correction method is to improve the printing result caused by the skew of the inkjet head 11.

Fig. 3 is a schematic diagram according to an embodiment of the present invention. In the present embodiment, the displacement of the inkjet head to the left is 2 dpi, so we divide each row data (column data) sent to the inkjet head 11 to print from top to bottom into I and II. section, and then fetches three rows of descriptions in the continuous row data. Send the line data 31, line data 32 and line data 33 to an inkjet head printing correction module 34 for rearrangement, so that the 32_I section of the line data 32 and the 31_II section of the line data 31 are printed simultaneously, and the line data 33 The 33_I sector is printed simultaneously with the 32_II sector of the line data 32 . From the printing results, it can be found that although the printing results are still skewed to the left, compared with the printing results in Figure 2, the original very skewed printing results have been improved, thereby improving the printing quality.

Fig. 4 is a schematic diagram according to another embodiment of the present invention. In this embodiment, the displacement of the inkjet head to the left is 3 dpi, so we divide each row of data sent to the inkjet head to print from top to bottom into three sections, I, II and III, Next, four rows of descriptions in the continuous row data are taken out. Send the line data 41, line data 42, line data 43 and line data 44 to an inkjet head print correction module 34 for rearrangement, so that the line data 43 of the 43_I section, the line data 42 of the 42_II section and the line data The 41_III section of 41 is printed simultaneously, the 44_I section of the line data 44, the 43_II section of the line data 43 and the 42_III section of the line data 42 are printed simultaneously. From the print results, it can be found that although the print results will still be skewed to the left, compared with the print correction results in Figure 3, the print correction results that divide each row of data into three segments have greatly improved the original very skewed results in Figure 2 As a result, print quality is greatly improved.

Fig. 5 is a schematic diagram according to another embodiment of the present invention. The method applied in this embodiment is to divide each row of data into N segments, and adopt a time-sharing printing method. However, in order to avoid increasing the printing time, the total printing time of the N segments must be less than or equal to the original position pulse time t_p, that is, the printing time of each segment is less than or equal to t _p /N. In this embodiment, the skew displacement of the inkjet head is 2 dpi, so each row of data is divided into two sections I and II, so the printing time of each section must be less than or equal to t _p /2. Send the line data 51 to an inkjet head printing correction module 34, so that the 51_I section of the line data 51 is printed first, and after the 51_I section is printed, the 51_II section of the line data 51 is printed to complete the line data 51 prints. From the printing results, it can be found that although the printing results are still skewed to the left, compared with the printing results in Figure 2, the original very skewed printing results have been improved, thereby improving the printing quality.

Fig. 6 is a printing situation when an inkjet head is tilted to the right. Because the inkjet head 11 is inclined to the right, the result of the printing of the two rows of nozzles 12 that should be perpendicular to the moving direction 13 of the inkjet head is a straight line skewed to the right. In order to correct such a printing result, the present invention proposes an inkjet head The printing correction method is to improve the printing result caused by the skew of the inkjet head 11.

Fig. 7 is a schematic diagram according to an embodiment of the present invention. In this embodiment, the displacement of the inkjet head to the right is 2 dpi, so we divide each line of data transmitted to the inkjet head 11 for printing into two sections I and II from top to bottom. Next, three rows of descriptions in the continuous row data are taken out. Send the line data 71, line data 72 and line data 73 to an inkjet head printing correction module 34 for rearrangement, so that the 71_I section of the line data 71 and the 72_II section of the line data 72 are printed simultaneously, and the line data 72 The 72_I sector is printed simultaneously with the 73_II sector of the line data 73 . From the printing results, it can be found that although the printing results are still skewed to the left, compared with the printing results in FIG. 6 , the original very skewed printing results have been improved, thereby improving the printing quality.

Fig. 8 is a schematic diagram according to another embodiment of the present invention. In this embodiment, the displacement of the inkjet head to the right is 3 dpi, so we divide each row of data sent to the inkjet head for printing into three sections I, II and III from top to bottom. Next, four rows of descriptions in the continuous row data are taken out. Send the line data 81, line data 82, line data 83 and line data 84 to an inkjet head print correction module 34 for rearrangement, so that the 81_I section of the line data 81, the 82_II section of the line data 82 and the line data The 83_III section of 83 is printed simultaneously, the 82_I section of the row data 82, the 83_II section of the row data 83 and the 84_III section of the row data 84 are printed simultaneously. From the print results, it can be found that although the print results will still be skewed to the left, compared with the print correction results in Figure 7, the print correction results that divide each row of data into three segments have greatly improved the original very skewed results in Figure 6. As a result, print quality is greatly improved.

Fig. 9 is a schematic diagram according to another embodiment of the present invention. The method applied in this embodiment is to divide each row of data into N segments, and adopt a time-sharing printing method. However, in order to avoid increasing the printing time, the total printing time of the N segments must be less than or equal to the original position pulse time t_p, that is, the printing time of each segment is less than or equal to t _p /N. In this embodiment, the skew displacement of the inkjet head is 2 dpi, so each row of data is divided into two sections I and II, so the printing time of each section must be less than or equal to t _p /2. Send the line data 91 to an inkjet head printing correction module 34, so that the 91_II section of the line data 91 is printed first, and after the 91_II section is printed, the 91_I section of the line data 91 is printed to complete the line data 91 prints. From the printing results, it can be found that although the printing results are still skewed to the left, compared with the printing results in FIG. 6 , the original very skewed printing results have been improved, thereby improving the printing quality.

Fig. 10 is a functional block diagram of an ink jet head to which the print correction device of the present invention is applied. After receiving the printing data, the printing module 101 converts the printing data into a plurality of rows of data. After receiving a printing test data, the calibration module 103 outputs a printing calibration information, wherein the printing calibration information includes a printing calibration amount N and a printing calibration direction. After receiving the printing correction information, the print correction module 102 knows the skew direction of the inkjet head 104, and performs print correction on the consecutive N lines of data among the multiple line data transmitted by the print module 101 according to the skew direction of the inkjet head 104 . The print correction module 102 first divides the N row data into N segments from top to bottom, when the inkjet head 104 is tilted to the right: take out the first segment of the first row data, the first row data The second segment of the second row of data, the third segment of the third row of data, and so on to the Nth segment of the Nth row of data, are sent to the inkjet head for printing. Or within a printing period t _p , the Nth section of the line of data is sent to the inkjet head 104 for printing, and after the Nth section of the line of data is printed, the ( N−1) sections are sent to the inkjet head 104 for printing, and so on until the first section of the line of data is sent to the inkjet head 104 for printing, and the printing of the line of data is completed. When the inkjet head 104 skew direction is tilted to the left: take out the Nth segment of the first row data, the (N-1)th segment of the second row data, the third row data of the third segment (N−2) segments, and so on to the first segment of the Nth row of data, are sent to the inkjet head 104 for printing. Or within a printing period t _p , the first section of the line of data is sent to the inkjet head 104 for printing, and the second section of the line of data is then printed after the first section of the line of data is printed. segments are sent to the inkjet head 104 for printing, and so on until the Nth segment of the row of data is sent to the inkjet head 104 for printing, and the printing of the row of data is completed.

The above description is only a preferred embodiment of the present invention, but it is not intended to limit the scope of the present invention. Any person familiar with this technology can make further improvements on this basis without departing from the spirit and scope of the present invention. Improvements and changes, so the protection scope of the present invention should be defined by the claims of the present application.

A brief description of the symbols in the drawings is as follows:

11～Inkjet head

12～nozzle

13～Moving direction of inkjet head

31, 32, 33, 41, 42, 43, 44, 51, 71, 72, 73, 81, 82, 83, 84, 91～line data

34～Inkjet head print correction module

101～printing module

102～print correction module

103～calibration module

104～Inkjet head

Claims (24)

1, a kind of ink gun printing correction method is characterized in that described ink gun printing correction method comprises:

The crooked direction of detecting ink gun;

Receive a plurality of line data, each line data is from top to bottom to a plurality of nozzles that should the ink gun lastrow;

Each line data is from top to bottom divided into first to N section;

A N continuous line data in this line data is printed correction:

When the crooked direction of this ink gun when being tilted to the right, take out the 3rd section of second section of first section of first line data, second line data, the 3rd line data, to N section of N line data, be sent to this ink gun and print by that analogy; And

When the crooked direction of this ink gun when being tilted to the left, take out N-1 section of N section of first line data, second line data, N-2 section of the 3rd line data, to first section of N line data, be sent to this ink gun and print by that analogy.

2, ink gun printing correction method according to claim 1, it is characterized in that: N is more than or equal to 2.

3, ink gun printing correction method according to claim 1 is characterized in that: the step of detecting the crooked direction of this ink gun comprises:

Receive one and print test data and printing; And

The comparison print result obtains crooked direction of an ink gun and the crooked displacement of an ink gun.

4, ink gun printing correction method according to claim 3 is characterized in that: according to the value of the crooked displacement decision of this ink gun N.

5, ink gun printing correction method according to claim 1 is characterized in that: this nozzle is driven by a plurality of address signals and a plurality of pixel selection signal, and to distinguish this nozzle by this pixel selection signal be a plurality of blocks.

6, ink gun printing correction method according to claim 5 is characterized in that: each this line data is from top to bottom divided in the step of N section, and each section is corresponding to an integer block.

7, a kind of ink gun printing correction method is characterized in that described ink gun printing correction method comprises:

Receive a line data, this line data is from top to bottom to a plurality of nozzles that should the ink gun lastrow;

Detect the crooked direction of this ink gun;

Each this line data is from top to bottom divided into N section;

When the crooked direction of this ink gun when being tilted to the left, print cycle t one _pIn, first section of this line data is sent to this ink gun to be printed, again second section of this line data being sent to this ink gun after first section for the treatment of this line data is printed and finished prints, be sent to this ink gun to N section by that analogy and print, finish the printing of this line data this line data; And

When the crooked direction of this ink gun when being tilted to the right, t in a printing cycle _pN section of this line data is sent to this ink gun to be printed, again N-1 section of this line data being sent to this ink gun after N section treating this line data printed and finished prints, be sent to this ink gun to first section by that analogy and print, finish the printing of this line data this line data.

8, ink gun printing correction method according to claim 7, it is characterized in that: N is more than or equal to 2.

9, ink gun printing correction method according to claim 7 is characterized in that: the step of detecting the crooked direction of this ink gun comprises:

Receive one and print test data and printing; And

The comparison print result obtains crooked direction of an ink gun and the crooked displacement of an ink gun.

10, ink gun printing correction method according to claim 9 is characterized in that: according to the value of the crooked displacement decision of this ink gun N.

11, ink gun printing correction method according to claim 7 is characterized in that: this nozzle is driven by a plurality of address signals and a plurality of pixel selection signal, and to distinguish this nozzle by this pixel selection signal be a plurality of blocks.

12, ink gun printing correction method according to claim 11 is characterized in that: each this line data is from top to bottom divided in the step of N section, and each section is corresponding to an integer block.

13, ink gun printing correction method according to claim 7, it is characterized in that: the time-write interval of each section of this line data is smaller or equal to t _p/ N.

14, a kind of ink gun printing correction unit is characterized in that described ink gun printing correction unit comprises:

One impression block group receives a dozen printings certificates and is converted to a plurality of line data, wherein a plurality of nozzles of the delegation on the from top to bottom corresponding ink gun of each line data;

One proofreaies and correct module, receives test printing data, and control information is printed in output one, and wherein this printing control information comprises crooked direction of an ink gun and the crooked displacement of an ink gun;

One prints the straightening die group, receives this line data and this printing orientation, and this ink gun is printed correction program, and this printing correction program comprises the following steps:

Each this line data is from top to bottom divided into N section;

A N continuous line data in this line data is printed correction;

When the crooked direction of this ink gun when being tilted to the right:

Take out the 3rd section of second section of first section of first line data, second line data, the 3rd line data,, be sent to this ink gun and print by that analogy to N section of N line data; And

When the crooked direction of this ink gun when being tilted to the left:

Take out N-1 section of N section of first line data, second line data, N-2 section of the 3rd line data,, be sent to this ink gun and print by that analogy to first section of N line data.

15, ink gun printing correction unit according to claim 14, it is characterized in that: N is more than or equal to 2.

16, ink gun printing correction unit according to claim 14 is characterized in that: according to the value of the crooked displacement decision of this ink gun N.

17, ink gun printing correction unit according to claim 14 is characterized in that: this nozzle is driven by a plurality of address signals and a plurality of pixel selection signal, and to distinguish this nozzle by this pixel selection signal be a plurality of blocks.

18, ink gun printing correction unit according to claim 17 is characterized in that: each this line data is from top to bottom divided in the step of N section, and each section is corresponding to an integer block.

19, a kind of ink gun printing correction unit is characterized in that described ink gun printing correction unit comprises:

One impression block group receives a dozen printings certificates and is converted to a plurality of line data, wherein a plurality of nozzles of the delegation on the from top to bottom corresponding ink gun of each line data;

One proofreaies and correct module, receives test printing data, and control information is printed in output one, and wherein this printing control information comprises crooked direction of an ink gun and the crooked displacement of an ink gun;

One prints the straightening die group, receives this line data and this printing orientation, and this ink gun is printed correction program, and this printing correction program comprises the following steps:

Each this line data is from top to bottom divided into N section;

A N continuous line data in this line data is printed correction;

When the crooked direction of this ink gun when being tilted to the right:

T in a printing cycle _pN section of this line data is sent to this ink gun to be printed, again N-1 section of this line data being sent to this ink gun after N section treating this line data printed and finished prints, be sent to this ink gun to first section by that analogy and print, finish the printing of this line data this line data;

And

When the crooked direction of this ink gun when being tilted to the left:

T in a printing cycle _pFirst section of this line data is sent to this ink gun to be printed, again second section of this line data being sent to this ink gun after first section for the treatment of this line data is printed and finished prints, be sent to this ink gun to N section by that analogy and print, finish the printing of this line data this line data.

20, ink gun printing correction unit according to claim 19, it is characterized in that: N is more than or equal to 2.

21, ink gun printing correction unit according to claim 19 is characterized in that: according to the value of the crooked displacement decision of this ink gun N.

22, ink gun printing correction unit according to claim 19 is characterized in that: this nozzle is driven by a plurality of address signals and a plurality of pixel selection signal, and to distinguish this nozzle by this pixel selection signal be a plurality of blocks.

23, ink gun printing correction unit according to claim 22 is characterized in that: each this line data is from top to bottom divided in the step of N section, and each section is corresponding to an integer block.

24, ink gun printing correction unit according to claim 19, it is characterized in that: the time-write interval of each section of this line data is smaller or equal to t _p/ N.

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