Inclined printing method, device and equipment of ink jet nozzle and storage medium

Abstract

The invention discloses an inclined printing method, device and equipment of an ink-jet nozzle and a storage medium, and relates to the technical field of ink-jet printing. According to the method, ink-jet nozzles are installed according to a preset inclination angle, then overlapping areas of different ink-jet channels in the scanning direction are calculated according to the preset inclination angle, and actual ink-jet nozzles of all the ink-jet channels are obtained based on the overlapping areas; and finally, the actual ink-jet nozzles are used for conducting ink-jet printing at the preset inclination angle on the printing medium according to the scanning direction, and the printing areas of the actual ink-jet nozzles of different ink-jet channels are not overlapped. In this way, the overlapping area of inclined installation of the nozzles different from normal installation of the nozzles is recalculated in combination with the preset inclination angle, and the actual ink-jet nozzles of different ink-jet channels can be readjusted to conduct ink-jet printing on the printing medium, so that the utilization rate of the ink-jet nozzles spraying different kinds of ink is effectively increased; and diversified requirements of rapid development of modern markets are met.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printing, and in particular to a tilt printing method, device, equipment and storage medium of an inkjet nozzle. Background Art

[0002] Inkjet printing is a digital image output technology that uses a nozzle to spray ink droplets onto a print medium to form text or images. Its development stems from the popularization of digital technology and the growth of printing demand. It is widely used because of its low cost, easy colorization, digitization and unlimited printing format.

[0003] With the continuous innovation of science and technology and the diversified evolution of market demand, the requirements for inkjet printing are getting higher and higher. For example, by adopting a method of tilting the nozzle relative to the moving direction of the print medium at a certain angle to improve the printing accuracy of the nozzle direction, the patent document (CN116021882A) records a parameter calculation method, device, equipment and storage medium for nozzle tilt printing, which aims to solve the technical problem that it is difficult to quickly and accurately obtain printing parameters when the nozzle is tilted, resulting in printing errors. Specifically, the tilt printing parameters of each column of nozzles are calculated according to the tilt angle and the physical layout parameters, including the starting effective nozzle position parameters and / or shielding position parameters. The shielding position parameters include the parameters of the first ink outlet boundary and the parameters of the second ink outlet boundary. The nozzles located outside the first ink outlet boundary and the second ink outlet boundary in each column of nozzles are invalid nozzles for nozzle tilt printing. The invalid nozzles do not perform inkjet operations during the nozzle tilt printing process, and the effective nozzles can be used in the nozzle tilt printing, so that the printing parameters can be quickly and accurately obtained when the nozzle is tilted for correct printing. However, the utilization rate of the tilted nozzles for different inks in the related art has not been improved compared with the utilization rate of the normal nozzles, and it is difficult to meet the development needs of the modern market. Summary of the invention

[0004] In view of this, the present invention provides a tilted printing method, device, equipment and storage medium for an inkjet nozzle, so as to solve the problem in the prior art that the tilted nozzles for different inks have low utilization rate and are difficult to meet the development needs of the modern market.

[0005] The technical solution adopted by the present invention is:

[0006] In a first aspect, the present invention provides a tilted printing method of an inkjet head, wherein the inkjet head comprises at least a first inkjet channel and a second inkjet channel, wherein the first inkjet channel ejects a first ink, and the second inkjet channel ejects a second ink different from the first ink, and each inkjet channel comprises at least one column of nozzles, wherein the method comprises:

[0007] Installing the inkjet nozzle at a preset tilt angle; wherein the preset tilt angle is the tilt angle of the inkjet nozzle relative to the scanning direction of the printing medium;

[0008] Calculating an overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle;

[0009] Acquire a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area;

[0010] The first actual inkjet nozzle and the second actual inkjet nozzle are controlled to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle and the printing area of ​​the second actual inkjet nozzle do not overlap.

[0011] In some embodiments, calculating the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle includes:

[0012] Acquire a distance parameter between the first inkjet channel and the second inkjet channel;

[0013] Acquire a total length parameter of a column of the nozzles in the first inkjet channel or the second inkjet channel;

[0014] The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained by calculation according to the distance parameter, the total length parameter and the preset inclination angle.

[0015] In some embodiments, the calculation based on the distance parameter, the total length parameter and the preset tilt angle to obtain the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction includes:

[0016] Calculating according to the distance parameter and the preset tilt angle to obtain a non-overlapping parameter of the first inkjet channel and the second inkjet channel;

[0017] Subtracting the non-overlapping parameter from the total length parameter to obtain an overlapping parameter of the first inkjet channel and the second inkjet channel;

[0018] Based on the overlap parameter, the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is acquired.

[0019] In some embodiments, acquiring a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area includes:

[0020] Dividing the overlapping area into a first overlapping area and a second overlapping area according to a preset ratio;

[0021] For the first inkjet channel, the nozzle in the first overlapping area is set as the first nozzle, and the nozzle in the first non-overlapping area is set as the second nozzle; wherein the first non-overlapping area is an area outside the overlapping area in the first inkjet channel;

[0022] For the second inkjet channel, the nozzle in the second overlapping area is set as the third nozzle, and the nozzle in the second non-overlapping area is set as the fourth nozzle; wherein the second non-overlapping area is an area outside the overlapping area in the second inkjet channel;

[0023] The first nozzle and the second nozzle are used as the first actual inkjet nozzle, and the third nozzle and the fourth nozzle are used as the second actual inkjet nozzle.

[0024] In some embodiments, the inkjet printing includes multiple scanning processes; and controlling the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction includes:

[0025] In one scanning process, the first actual inkjet nozzle is controlled to spray white ink onto the printing medium to obtain a white ink area, and the second actual inkjet nozzle is controlled to spray color ink onto the printing medium to obtain a color ink area; wherein the white ink area and the color ink area do not overlap in the same scanning process;

[0026] During the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink to the printing medium, and the second actual inkjet nozzle is controlled to spray color ink to the white ink area.

[0027] In some embodiments, the inkjet head further includes a third inkjet channel, the third inkjet channel jetting a third ink different from the first ink and the second ink, and the method further includes:

[0028] Calculating a standard overlapping area of ​​the second inkjet channel and the third inkjet channel in the scanning direction according to the preset tilt angle;

[0029] Based on the standard overlapping area and the overlapping area, acquiring a first actual inkjet nozzle of the first inkjet channel, a second actual nozzle of the second inkjet channel, and a third actual inkjet nozzle of the third inkjet channel;

[0030] Control the first actual inkjet nozzle, the second actual inkjet nozzle and the third actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle, the printing area of ​​the second actual inkjet nozzle and the printing area of ​​the third actual inkjet nozzle do not overlap with each other.

[0031] In some embodiments, the inkjet printing includes multiple scanning processes; the controlling the first actual inkjet nozzle, the second actual inkjet nozzle, and the third actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction includes:

[0032] In one scanning process, the first actual inkjet nozzle is controlled to spray white ink on the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to spray color ink on the printing medium to obtain a color ink area, and the third actual inkjet nozzle is controlled to spray varnish on the printing medium to obtain a varnish area; wherein the white ink area, the color ink area and the varnish area do not overlap each other in the same scanning process;

[0033] During the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink to the printing medium, the second actual inkjet nozzle is controlled to spray color ink to the white ink area, and the third actual inkjet nozzle is controlled to spray varnish to the color ink area.

[0034] In a second aspect, the present invention provides a tilted printing device for an inkjet head, the device comprising:

[0035] A tilting module, used to install the inkjet nozzle at a preset tilting angle; wherein the preset tilting angle is the tilting angle of the inkjet nozzle relative to the scanning direction of the printing medium;

[0036] An overlapping module, used for calculating an overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle;

[0037] an adjustment module, configured to obtain a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area;

[0038] A printing module is used to control the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle and the printing area of ​​the second actual inkjet nozzle do not overlap.

[0039] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method of the first aspect in the above-mentioned embodiment.

[0040] In a fourth aspect, an embodiment of the present invention further provides a storage medium on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the method of the first aspect in the above-mentioned embodiment is implemented.

[0041] In summary, the beneficial effects of the present invention are as follows:

[0042] The present invention provides an inclined printing method, device, equipment and storage medium for an inkjet head, wherein the inkjet head comprises at least a first inkjet channel and a second inkjet channel, wherein the first inkjet channel sprays a first ink, and the second inkjet channel sprays a second ink different from the first ink, and each inkjet channel comprises at least one column of nozzles. In the inclined printing method for the inkjet head, the inkjet head is first installed at a preset inclination angle, and the preset inclination angle is defined as the inclination angle of the inkjet head relative to the scanning direction of the printing medium. Then, the overlapping area between different inkjet channels in the scanning direction is calculated according to the preset inclination angle, and the actual inkjet nozzle of each inkjet channel is obtained based on the overlapping area, and finally, the actual inkjet nozzle is used to perform inkjet printing on the printing medium at a preset inclination angle according to the scanning direction, and the printing areas of the actual inkjet nozzles of different inkjet channels are complementary and overlapped. Thus, the overlapping area when the nozzle is tilted and installed differently from the normal installation of the nozzle is recalculated in combination with the preset inclination angle, and the actual inkjet nozzles of different inkjet channels can be readjusted to perform inkjet printing on the printing medium, thereby effectively improving the utilization rate of the inkjet head when spraying different inks, so as to meet the diversified needs of the rapid development of the modern market. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0044] Figure 1 It is a schematic diagram of a normally installed inkjet nozzle in the related art;

[0045] Figure 2 A schematic diagram of inkjet channel utilization of different inks in the related art;

[0046] Figure 3 Schematic diagram of the process of the tilted printing method of the inkjet head in Example 1 of the present invention;

[0047] Figure 4 A schematic diagram of an inclined-mounted inkjet nozzle provided in an embodiment of the present invention;

[0048] Figure 5 yes Figure 3 Schematic diagram of the process before step S101;

[0049] Figure 6 is a schematic diagram of another tilted inkjet nozzle provided in an embodiment of the present invention;

[0050] Figure 7 is a schematic flow chart of another tilted printing method of an inkjet head in Embodiment 1 of the present invention;

[0051] Figure 8 yes Figure 3 Schematic diagram of the process of step S102;

[0052] Fig. 9 yes Figure 8 Schematic diagram of the process of step S403;

[0053] Fig.10 is a schematic diagram of the overlapping area calculation principle provided in an embodiment of the present invention;

[0054] Fig.11 yes Figure 3 Schematic diagram of the process of step S103;

[0055] Fig.12 A schematic diagram of another tilted inkjet nozzle provided in an embodiment of the present invention;

[0056] Fig.13 is a structural block diagram of a tilted printing device for an inkjet head in Embodiment 2 of the present invention;

[0057] Fig.14 It is a schematic diagram of the structure of the electronic device in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the existence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, all within the protection scope of the present invention.

[0059] Inkjet printing is a digital image output technology that uses a nozzle to spray ink droplets onto a print medium to form text or images. It is widely used because of its low cost, easy colorization, digitization, and unlimited printing format. Figure 1 As shown, the inkjet head includes two inkjet channels, namely, inkjet channel a for ejecting white ink and inkjet channel b for ejecting color ink.

[0060] Reference Figure 1 As shown, when the inkjet head moves from left to right to scan the printing medium, the position P passed by inkjet channel a will be passed by inkjet channel b as the inkjet head moves, and inkjet channel b completely overlaps with inkjet channel a when passing position P. In inkjet printing, the color ink is covered on the white ink by controlling the nozzle to step in a stepping direction. The white ink and the color ink have a printing order. Therefore, in order to prevent the white ink and the color ink from being mixed and causing printing errors due to the simultaneous printing of the white ink and the color ink, different inkjet channels need to use different nozzle positions when spraying the white ink and the color ink.

[0061] For details, please refer to Figure 2As shown, the inkjet channel includes at least one column (for example, a column of 30) of nozzles for spraying printing material (ink) onto the printing medium. In the related art, the nozzles of the white ink channel are usually set to the front 50 of the channel, and the nozzles of the color ink channel are set to the back 50% of the channel. After the nozzle prints the white ink, the nozzle is controlled to step and print the color ink again, so that the color ink covers the white ink. Therefore, in the inkjet operation, only 50% of the nozzles in each inkjet channel are used for inkjet printing, resulting in low utilization of nozzles for different inks. Although it is proposed in the related art that the nozzle can be installed by rotating and tilting to improve the printing accuracy, there is still no substantial improvement in the utilization of the nozzles of the nozzles, which makes it difficult to meet the diverse needs of the modern market for high-quality and high-efficiency printing.

[0062] Based on this, the embodiments of the present invention provide a tilted printing method, device, electronic device and storage medium for an inkjet nozzle, which can recalculate the overlapping area when the nozzle is tilted and different from the normal installation of the nozzle based on a preset tilt angle, and can readjust the ink outlet nozzles of different inkjet channels to perform inkjet printing on the printing medium, thereby effectively improving the utilization rate of the inkjet nozzle when spraying different inks, so as to meet the diversified needs of the rapidly developing modern market.

[0063] The embodiments of the present application provide a tilted printing method, device, electronic device and storage medium for an inkjet nozzle, which are specifically described through the following embodiments.

[0064] Example 1

[0065] See also Figure 3 , Figure 3 is an optional flow chart of the tilted printing method of the inkjet head provided in an embodiment of the present invention. Figure 3 The method in the embodiment may include but is not limited to steps S101 to S104. Figure 3 The order of step S101 to step S104 is not specifically limited, and the order of steps can be adjusted or some steps can be reduced or added according to actual needs.

[0066] Step S101, installing the inkjet nozzle according to a preset tilt angle.

[0067] In some embodiments, the preset tilt angle is the tilt angle of the inkjet head relative to the scanning direction of the print medium. Figure 4 As shown, the scanning direction of the inkjet head on the printing medium is horizontally from left to right, and even if the preset tilt angles of different inkjet heads are different, the scanning direction remains unchanged. It can be understood that the setting of the preset tilt angle can be adjusted according to actual printing requirements to achieve the best printing accuracy and nozzle utilization.

[0068] In some embodiments, the preset tilt angle ranges from 45° to 70°, and the device is installed by rotating clockwise or counterclockwise. Preferably, the preset tilt angle is 60° counterclockwise, which is not limited in this embodiment.

[0069] Step S102: calculating an overlapping area between the first inkjet channel and the second inkjet channel in a scanning direction according to a preset tilt angle.

[0070] In some embodiments, the overlapping area between different inkjet channels in the scanning direction can be calculated according to a preset tilt angle. Figure 4 As shown, since the inkjet head is installed obliquely, the projections a' and b' of the first inkjet channel a and the second inkjet channel b in the scanning direction do not completely overlap, but have a drop to form a certain overlapping area.

[0071] Step S103 , acquiring a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area.

[0072] In some embodiments, after determining the overlapping area between different inkjet channels, the ink nozzle of each inkjet channel can be adaptively adjusted according to the size of the overlapping area. Here, the first actual inkjet nozzle of the first inkjet channel and the second actual nozzle of the second inkjet channel are obtained. Specifically, some nozzles located in the overlapping area can be closed or shielded to avoid mixing of different inks on the printing medium, or the nozzles in the overlapping area can be set based on different inkjet channels, which is not limited in this embodiment.

[0073] Step S104 , controlling the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium in the scanning direction.

[0074] In some embodiments, inkjet printing includes multiple scanning processes, and in a certain scanning process, the colored ink is covered on the white ink sprayed in the previous scanning process. Specifically, in one scanning process, the first actual inkjet nozzle is controlled to spray white ink on the printing medium to obtain a white ink area, and the second actual inkjet nozzle is controlled to spray colored ink on the printing medium to obtain a colored ink area; wherein the white ink area and the colored ink area do not overlap in the same scanning process. In the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink on the printing medium, and the second actual inkjet nozzle is controlled to spray colored ink on the white ink area. It can be understood that after completing one scanning process, the process of controlling the inkjet head to step and scan is repeated until inkjet printing is completed.

[0075] It is worth noting that when the inkjet head is installed normally, its printing accuracy is lower than when it is installed at an angle. For example, for the XP600 single-head white color head, the vertical resolution of a single channel is only 180DPI (Dots Per Inch) when installed normally, and whitening is likely to occur during printing.

[0076] It is understood that "single channel" refers to the channel in the nozzle for ejecting ink, specifically the channel for ejecting white or color ink. "Vertical resolution" refers to the density of ink dots that the print head can print in the vertical (or longitudinal) direction, measured in dots per inch (DPI). "180DPI" is the vertical resolution of the XP600 single nozzle. This value is relatively low, which means that the distribution of ink dots in the vertical direction is relatively sparse, which is not enough to meet the needs of high-quality printing and may result in poor printing effects. However, in some embodiments, when the XP600 single nozzle is installed at a preset angle, refer to Figure 4 As shown in the figure, its projection length in the scanning direction will be shorter than that in normal installation, that is, the printing range in the vertical (or longitudinal) direction will be smaller than that in normal installation. Therefore, if the number of nozzles in the printhead remains unchanged, the density of ink dots that can be printed in the vertical (or longitudinal) direction will increase, that is, the DPI will increase, thereby improving the printing accuracy.

[0077] Therefore, the tilted installation of the inkjet nozzle can effectively improve the printing accuracy and adjust the actual inkjet nozzle according to the overlapping area, while also effectively improving the utilization rate of the nozzle, thereby significantly improving the printing efficiency and print quality.

[0078] In some embodiments, it is supported to install the nozzle at different preset tilt angles for different printing tasks to achieve the best printing accuracy, nozzle utilization and printing efficiency. Specifically, obtaining the actual tilt angle of the printing task may include but is not limited to the following steps:

[0079] S110: Determine the rotation angle range of the inkjet nozzle according to the data accuracy of the printing task.

[0080] In some embodiments, different printing tasks have different requirements for the data accuracy of the printed image. For printing tasks with lower data accuracy requirements, the rotation angle range of the inkjet nozzle can be smaller, so as to improve the nozzle utilization and printing efficiency while ensuring the printing accuracy; correspondingly, for printing tasks with higher data accuracy requirements, the rotation angle range of the inkjet nozzle needs to be larger to ensure that the printed image meets the printing accuracy requirements. It is understandable that the rotation angle range can be set by those skilled in the art according to actual needs or obtained by establishing a mapping relationship query, and this embodiment does not limit this.

[0081] S120: Determine an actual tilt angle within the rotation angle range according to a priority parameter of the printing task.

[0082] In some embodiments, the priority parameters of the printing task may include but are not limited to: printing accuracy, printing efficiency and printing error. Specifically, the actual tilt angle is calculated by the following formula:

[0083] M=w1·Precision+w2·Efficiency-w3·Error

[0084] Among them, M is the (optimal) actual tilt angle, Precision is the printing accuracy, Efficiency is the printing efficiency, and Error is the printing error (such as overlapping area deviation and / or step error); w1, w2 and w3 correspond to the weights of each priority parameter, and the value of each weight can be adjusted according to the task requirements, which is not limited in this embodiment.

[0085] Reference Figure 5 As shown, in some embodiments of the present application, the above step S101: before installing the inkjet nozzle according to a preset tilt angle, may also include but not be limited to the following steps S201 to S202.

[0086] Step S201, taking the lower left corner of the initial position of the inkjet head as the origin and taking the scanning direction as the positive direction of the X-axis to establish a plane rectangular coordinate system.

[0087] In some embodiments, the initial position refers to the position corresponding to the normal installation of the inkjet nozzle, and the lower left corner of the initial position of the inkjet nozzle is used as the origin, and the scanning direction is used as the positive direction of the X-axis to establish a plane rectangular coordinate system. Specifically, at the initial position, each inkjet channel in the inkjet nozzle is arranged front and back from left to right in the scanning direction, and the arrangement direction of a column of nozzles in the inkjet channel is the nozzle column direction, and the nozzle column direction is the same as the Y-axis direction of the plane rectangular coordinate system.

[0088] Step S202: The inkjet head is rotated at a preset tilt angle at the origin with an axis perpendicular to both the scanning direction and the nozzle array direction as a rotation axis to obtain a tilted position of the inkjet head.

[0089] In some embodiments, an axis perpendicular to both the scanning direction and the nozzle array direction is selected as the rotation axis. Figure 6 As shown, the inkjet head is rotated at a preset tilt angle θ with the rotation axis as the center at the origin, and the inkjet head is in a tilted position. It can be understood that in the tilted position, each inkjet channel in the inkjet head is arranged front and back from bottom to top at a preset tilt angle, and the direction of the nozzle column is also tilted accordingly as the inkjet head rotates.

[0090] Reference Figure 7As shown, in some embodiments of the present application, obtaining the preset tilt angle may also include but is not limited to the following steps S301 to S303.

[0091] Step S301, obtaining a bottom reference line of the inkjet nozzle.

[0092] In some embodiments, a bottom reference line of the inkjet head is determined, and this line can be a straight line at the bottom of the inkjet head, which is used as a reference for rotation. In actual operation, the bottom reference line can be determined by observing the physical structure of the inkjet head or using a measuring tool, which is not limited in this embodiment.

[0093] Step S302, when the inkjet nozzle rotates counterclockwise on the origin, the preset tilt angle obtained is the angle between the bottom reference line and the positive direction of the X-axis in the plane rectangular coordinate system.

[0094] In some embodiments, when the inkjet nozzle rotates counterclockwise at the origin, it means that the nozzle rotates in the direction opposite to the positive direction of the X-axis. By obtaining the angle between the bottom reference line and the positive direction of the X-axis in the plane rectangular coordinate system, the preset tilt angle θ is obtained.

[0095] Step S303, when the inkjet nozzle rotates clockwise on the origin, the preset tilt angle obtained is the angle between the bottom reference line and the negative direction of the X-axis in the plane rectangular coordinate system.

[0096] In some embodiments, when the inkjet nozzle rotates clockwise at the origin, it means that the nozzle rotates in the same direction as the positive direction of the X-axis. By obtaining the angle between the bottom reference line and the negative direction of the X-axis in the plane rectangular coordinate system, the corresponding preset tilt angle θ is obtained. It can be understood that in order to maintain consistency, this angle can be regarded as an angle opposite to the negative direction of the X-axis (i.e., a positive angle), and it is used as the preset tilt angle θ. It should be noted that in actual calculations or applications, those skilled in the art can adjust the angle positively or negatively according to the specific circumstances, and this embodiment does not limit this.

[0097] Reference Figure 8 As shown, in some embodiments of the present application, the above step S102: calculating the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle may also include but are not limited to the following steps S401 to S403.

[0098] Step S401, obtaining a distance parameter between the first inkjet channel and the second inkjet channel.

[0099] In some embodiments, a distance parameter between a first inkjet channel and a second inkjet channel is obtained. For a nozzle including multiple inkjet channels, a distance parameter between two adjacent inkjet channels is obtained. Specifically, the distance parameter is the shortest straight-line distance between two adjacent inkjet channels. It is understood that the distance parameters between the various inkjet channels are the same, that is, the inkjet channels in the inkjet nozzle are set to be spaced at the same distance.

[0100] Step S402, obtaining a total length parameter of a column of nozzles in the first inkjet channel or the second inkjet channel.

[0101] In some embodiments, each inkjet channel has the same number of nozzles, and a total length parameter of a row of nozzles in the first inkjet channel or the second inkjet channel is obtained. Specifically, the total length parameter refers to the total length of a row of nozzles in an inkjet channel along the nozzle row direction. For example, when an inkjet channel is composed of 30 nozzles in a row, the total length parameter is the length value of the 30 nozzles.

[0102] Step S403, calculating according to the distance parameter, the total length parameter and the preset tilt angle to obtain the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction.

[0103] In some embodiments, the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained by calculation based on the distance parameter, the total length parameter and the preset tilt angle. Fig. 9 As shown, the steps may include but are not limited to the following steps S501 to S503.

[0104] Step S501 , calculating according to the distance parameter and the preset tilt angle to obtain the non-overlapping parameter of the first inkjet channel and the second inkjet channel.

[0105] In some embodiments, the non-overlapping parameter of the first inkjet channel and the second inkjet channel can be obtained by calculating based on the distance parameter and the tangent value of the preset tilt angle. Fig.10 As shown, the distance parameter L1 is multiplied by the tangent value tanθ of the preset tilt angle, that is, L1*tanθ, and the product corresponds to the non-overlapping parameter of the first inkjet channel a and the second inkjet channel b. It can be understood that when the second inkjet channel b moves along with the inkjet nozzle in the scanning direction, the non-overlapping parameter indicates the non-overlapping area of ​​the nozzles of the second inkjet channel b and the first inkjet channel a.

[0106] Step S502: subtract the non-overlapping parameter from the total length parameter to obtain the overlapping parameter of the first inkjet channel and the second inkjet channel.

[0107] In some embodiments, reference Fig.10As shown, the first non-overlapping parameter L1*tanθ is subtracted from the total length parameter L2 to obtain the overlapping parameter of the second inkjet channel b and the first inkjet channel a, i.e., L2-L1*tanθ. It can be understood that when the second inkjet channel b moves along with the inkjet head in the scanning direction, the overlapping parameter indicates the nozzle overlap area of ​​the second inkjet channel b and the first inkjet channel a.

[0108] Step S503: acquiring an overlapping area between the first inkjet channel and the second inkjet channel in the scanning direction based on the overlapping parameter.

[0109] In some embodiments, specifically, refer to Fig.10 As shown, the overlap parameter corresponds to the overlap area of ​​the head of the second inkjet channel b and the overlap area of ​​the tail of the first inkjet channel a. The overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction can be obtained through the overlap parameter.

[0110] Reference Fig.11 As shown, in some embodiments of the present application, the above step S103: obtaining the first actual inkjet nozzle of the first inkjet channel and the second actual inkjet nozzle of the second inkjet channel based on the overlapping area may also include but are not limited to the following steps S601 to S604.

[0111] Step S601: Divide the overlapping area into a first overlapping area and a second overlapping area according to a preset ratio.

[0112] In some embodiments, the overlapping area is divided into a first overlapping area and a second overlapping area according to a preset ratio. For example, the preset ratio is 50%, that is, the overlapping area is divided in half, with the first overlapping area in front and the second overlapping area in the back. The preset ratio can also be set by those skilled in the art according to actual needs, and this embodiment does not limit this.

[0113] Step S602 : for the first inkjet channel, setting the nozzle in the first overlapping area as the first nozzle, and setting the nozzle in the first non-overlapping area as the second nozzle.

[0114] In some embodiments, for the first inkjet channel, the nozzle in the first overlapping area is set as the first nozzle, and the first nozzle will normally work to eject white ink during printing. At the same time, the nozzle in the first non-overlapping area is set as the second nozzle, and the first non-overlapping area refers to the area outside the overlapping area in the first inkjet channel, which corresponds to the area indicated by the non-overlapping parameter L1*tanθ in this embodiment.

[0115] Step S603 , for the second inkjet channel, setting the nozzle in the second overlapping area as the third nozzle, and setting the nozzle in the second non-overlapping area as the fourth nozzle.

[0116] In some embodiments, for the second inkjet channel, the nozzle in the second overlapping area is set as the third nozzle, and the third nozzle will normally work to eject color ink during printing. At the same time, the nozzle in the second non-overlapping area is set as the fourth nozzle, and the second non-overlapping area refers to the area outside the overlapping area in the second inkjet channel.

[0117] Step S604: the first nozzle and the second nozzle are used as first actual inkjet nozzles, and the third nozzle and the fourth nozzle are used as second actual inkjet nozzles.

[0118] In some embodiments, the first nozzle and the second nozzle are used as the first actual inkjet nozzle of the white ink channel, and the third ink outlet nozzle and the fourth ink outlet nozzle are used as the second actual inkjet nozzle of the color ink channel. Exemplarily, when the overlapping area occupies 2 / 3 of the inkjet channel, that is, the non-overlapping area is 1 / 3 of the inkjet channel, and the overlapping area is divided according to a preset ratio of 50%, at this time, 1 / 3+1 / 3=2 / 3 nozzles in the white ink channel work normally to spray white ink, and 1 / 3+1 / 3=2 / 3 nozzles in the color ink channel also work normally to spray color ink, which is compared with the nozzle utilization rate in the related art. It is increased from 50% to 67%. Therefore, by dividing the overlapping area and then adjusting the inkjet nozzles of different inkjet channels, white ink and color ink can be divided in the overlapping area, and white ink and color ink in the non-overlapping area work normally, ensuring correct printing while effectively improving the utilization rate of nozzles of different inks.

[0119] Reference Fig.12 As shown, in some embodiments of the present application, the inkjet head may further include a third inkjet channel c, and the third inkjet channel ejects a third ink different from the first ink and the second ink. For example, the three inkjet channels eject color ink and white ink of different colors, or eject white ink, color ink and varnish, respectively. It can be understood that color ink refers to CMYK ink, that is, four inks commonly used in color printing, respectively for cyan (Cyan), magenta (Magenta), yellow (Yellow) and black (Key, taking the last letter of black Black to avoid confusion with blue Blue). In the color ink channel, there can be a single color ink or a mixture of multiple colors of ink, and this embodiment does not limit this.

[0120] Specifically, the standard overlapping area of ​​the second inkjet channel and the third inkjet channel in the scanning direction is calculated according to the preset inclination angle, and the first actual inkjet nozzle of the first inkjet channel, the second actual nozzle of the second inkjet channel, and the third actual inkjet nozzle of the third inkjet channel are obtained based on the standard overlapping area and the overlapping area. Finally, the first actual inkjet nozzle, the second actual inkjet nozzle, and the third actual inkjet nozzle are controlled to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle, the printing area of ​​the second actual inkjet nozzle, and the printing area of ​​the third actual inkjet nozzle do not overlap with each other. It can be understood that the calculation method of the reference overlapping area and the calculation method of the overlapping area are basically the same, and will not be repeated here.

[0121] In some embodiments, the first inkjet channel a sprays white ink, the second inkjet channel b sprays color ink, and the third inkjet channel c sprays varnish. Specifically, during one scanning process, the first actual inkjet nozzle is controlled to spray white ink on the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to spray color ink on the printing medium to obtain a color ink area, and the third actual inkjet nozzle is controlled to spray varnish on the printing medium to obtain a varnish area; wherein the white ink area, the color ink area, and the varnish area do not overlap each other during the same scanning process. During the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink on the printing medium, the second actual inkjet nozzle is controlled to spray color ink on the white ink area, and the third actual inkjet nozzle is controlled to spray varnish on the color ink area.

[0122] It is understandable that spraying white ink on the printing medium first can provide a white background, making the color ink printed later more vivid and accurate. Especially when printing on dark or colored substrates, the white ink layer can play a role of isolation and foil. After the white ink layer is cured and dried, the color ink is printed on it. The color ink can contain a variety of colors, which can be combined and matched according to design requirements. The last step is to cover the color ink layer with a layer of varnish. The main function of varnish is to increase the gloss of the printed product and protect the color ink layer from erosion by the external environment (such as water, oil, ultraviolet rays, etc.). The type and coating method of varnish can be selected according to different needs. For example, some varnishes can form a high-gloss effect, making the printed product look brighter; while some varnishes focus more on wear resistance and weather resistance.

[0123] In some embodiments, when a large area needs to be filled with color quickly, each nozzle in the same inkjet channel can eject ink at the same time to improve printing speed and efficiency. In certain printing tasks, uniform color and no obvious color difference are required, and ejecting ink at the same time can also ensure color consistency.

[0124] In some embodiments, when fine patterns or text need to be printed, the ink ejection at different times can ensure the ejection accuracy and position accuracy of each nozzle, thereby obtaining a clearer printing effect. Specifically, in grayscale printing, by controlling the ejection time and ink droplet size of different nozzles, the grayscale level can be changed, thereby obtaining a more delicate printing effect.

[0125] It is understandable that for the XP600 single-head white color printhead, the vertical resolution of a single channel is only 180DPI when installed normally. Figure 4 As shown in the figure, when the preset tilt angle is 60°, the single-channel vertical resolution of the XP600 printhead can be increased to 360DPI when it is installed at an angle, which is twice the DPI when it is installed normally. This is because when it is installed at an angle, its projected length in the scanning direction is shorter by L2*cos60°, that is, half as short as when it is installed normally. Therefore, if the number of nozzles in the printhead remains unchanged, the density of ink dots that can be printed in the vertical (or longitudinal) direction will double, increasing the DPI from the original 180 to 360. Assuming that the original printing task requires printing 12 passes, only 6 passes are needed after the tilted installation ("pass" is a term used to describe the process of the printhead completing a complete lateral movement on the print medium, that is, from beginning to end or from left to right, or in the opposite direction), and the printing of solid colors is significantly better than that of normal installation, effectively improving printing efficiency and nozzle utilization.

[0126] In some embodiments of the present application, the range of the preset tilt angle can be 45 to 70 degrees clockwise or counterclockwise, and a preferred embodiment is 60 degrees. Specifically, referring to the application statistics of the tilt installation of inkjet nozzles in Table 1 below, the control mode of the inkjet nozzle can be scanning or rotation, and the scanning control mode is usually achieved by moving the nozzle or the printing medium to achieve printing. The nozzle moves along a certain trajectory on a two-dimensional plane, and at the same time sprays ink to form an image or text. This method is widely used in the field of flat printing. The rotation control method is to achieve printing by rotating the nozzle or the printing medium. This method has significant advantages in specific application scenarios, such as cylinder printing and sock machines. Among them, when the single-head XP600 is installed at an angle of 60 degrees, the production capacity of printing white color or white color varnish is increased by at least 50%. When the single-head i3200-HD is installed at an angle of 60 degrees, the production capacity of printing white color or white color varnish is increased by at least 75%-100%.

[0127] Table 1

[0128]

[0129] In some embodiments of the present application, each inkjet channel in the inkjet nozzle may include two rows of nozzles, and the nozzles may be distributed on both sides of the inkjet channel in a specific arrangement (such as a linear parallel arrangement or a staggered arrangement). It is understandable that when the two rows of nozzles are arranged in a staggered manner, the printing area can be more effectively covered, the printing blind area can be reduced, and the printing quality can be improved.

[0130] In some embodiments of the present application, the bottom reference line of the inkjet nozzle can also be selected as the rotation axis to rotate the inkjet nozzle in three-dimensional space, that is, to raise the inkjet nozzle in a direction away from the print medium or lower it in a direction close to the print medium. At this time, the preset tilt angle corresponds to the angle between the plane where the inkjet nozzle is located and the plane where the two-dimensional rectangular coordinate system of the plane is located. It can be understood that through the rotation of the three-dimensional space, the inkjet nozzle can more flexibly adjust its injection angle and position, so as to adapt to print media of different shapes and sizes, and help to achieve more complex printing tasks, such as printing on different curvatures or inclined surfaces. The ink injection path can also be optimized to reduce the dispersion and waste of ink in the air, thereby improving the clarity and resolution of the print. The tilted nozzle can also help achieve a more uniform ink distribution, especially when printing large areas of pure color, which can significantly reduce the phenomenon of color bands and stripes. For some special printing tasks, such as printing images or text with a three-dimensional sense, rotating the tilted nozzle can create a unique visual effect. In addition, it can also be used to print media with special textures or patterns, such as leather, wood or metal surfaces.

[0131] It is understandable that those skilled in the art can set the rotating shaft according to actual needs and tilt the inkjet nozzle in different directions and angles, and the embodiments of the present application do not limit this. By recalculating the overlapping area when the nozzle is tilted and installed differently from the normal installation of the nozzle in combination with the preset tilt angle, the ink nozzles of different inkjet channels are readjusted to perform inkjet printing on the printing medium, thereby effectively improving the utilization rate of the inkjet nozzle when spraying different inks, so as to meet the diversified needs of the rapidly developing modern market.

[0132] Example 2

[0133] See also Fig.13 Embodiment 2 of the present invention further provides a tilted printing device for an inkjet head, the device comprising:

[0134] A tilting module, used to install the inkjet nozzle according to a preset tilting angle; wherein the preset tilting angle is the tilting angle of the inkjet nozzle relative to the scanning direction of the printing medium;

[0135] An overlapping module, used for calculating an overlapping area of ​​the first inkjet channel and the second inkjet channel in a scanning direction according to a preset tilt angle;

[0136] an adjustment module, configured to obtain a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlap area;

[0137] The printing module is used to control the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle and the printing area of ​​the second actual inkjet nozzle do not overlap.

[0138] The specific implementation of the tilted printing device of the inkjet head of this embodiment is basically the same as the specific implementation of the tilted printing method of the inkjet head described above, and will not be described in detail here.

[0139] Example 3

[0140] In addition, combined Figure 3 The tilted printing method of the inkjet head described in the first embodiment of the present invention can be implemented by an electronic device. Fig.14 A schematic diagram of the hardware structure of an electronic device provided in Embodiment 3 of the present invention is shown.

[0141] The electronic device may include a processor and a memory storing computer program instructions.

[0142] Specifically, the processor may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present invention.

[0143] The memory may include a large capacity memory for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory may include a removable or non-removable (or fixed) medium. Where appropriate, the memory may be inside or outside a data processing device. In a particular embodiment, the memory is a non-volatile solid-state memory. In a particular embodiment, the memory includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM) or a flash memory or a combination of two or more of these.

[0144] The processor implements any one of the tilted printing methods for inkjet heads in the above embodiments by reading and executing computer program instructions stored in the memory.

[0145] In one example, the electronic device may further include a communication interface and a bus. Fig.14 As shown, the processor, memory, and communication interface are connected via a bus and communicate with each other.

[0146] The communication interface is mainly used to implement communication between the modules, devices, units and / or equipment in the embodiments of the present invention.

[0147] The bus includes hardware, software or both, and the parts of the device are coupled to each other. For example, but not limitation, the bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In suitable cases, the bus may include one or more buses. Although the embodiment of the present invention describes and shows a specific bus, the present invention considers any suitable bus or interconnection.

[0148] Example 4

[0149] In addition, in combination with the tilted printing method of the inkjet nozzle in the above embodiment 1, the embodiment 4 of the present invention can also provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any of the tilted printing methods of the inkjet nozzle in the above embodiments is implemented.

[0150] In summary, the embodiments of the present invention provide a tilt printing method, device, equipment and storage medium for an inkjet head.

[0151] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0152] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0153] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0154] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A tilted printing method for an inkjet head, characterized in that: The inkjet head comprises at least a first inkjet channel and a second inkjet channel, the first inkjet channel ejects a first ink, the second inkjet channel ejects a second ink different from the first ink, each inkjet channel comprises at least one column of nozzles, and the method comprises: Installing the inkjet nozzle at a preset tilt angle; wherein the preset tilt angle is the tilt angle of the inkjet nozzle relative to the scanning direction of the printing medium; Calculating an overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle; Acquire a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area; The first actual inkjet nozzle and the second actual inkjet nozzle are controlled to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle and the printing area of ​​the second actual inkjet nozzle do not overlap.

2. The tilted printing method of the inkjet head according to claim 1, characterized in that: The calculating the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset inclination angle includes: Acquire a distance parameter between the first inkjet channel and the second inkjet channel; Acquire a total length parameter of a column of the nozzles in the first inkjet channel or the second inkjet channel; The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained by calculation according to the distance parameter, the total length parameter and the preset inclination angle.

3. The tilted printing method of the inkjet head according to claim 2, characterized in that: The calculating according to the distance parameter, the total length parameter and the preset tilt angle to obtain the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction includes: Calculating according to the distance parameter and the preset tilt angle to obtain a non-overlapping parameter of the first inkjet channel and the second inkjet channel; Subtracting the non-overlapping parameter from the total length parameter to obtain an overlapping parameter of the first inkjet channel and the second inkjet channel; Based on the overlap parameter, the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is acquired.

4. The tilted printing method of the inkjet head according to claim 1, characterized in that: The acquiring a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area comprises: Dividing the overlapping area into a first overlapping area and a second overlapping area according to a preset ratio; For the first inkjet channel, the nozzle in the first overlapping area is set as the first nozzle, and the nozzle in the first non-overlapping area is set as the second nozzle; wherein the first non-overlapping area is an area outside the overlapping area in the first inkjet channel; For the second inkjet channel, the nozzle in the second overlapping area is set as the third nozzle, and the nozzle in the second non-overlapping area is set as the fourth nozzle; wherein the second non-overlapping area is an area outside the overlapping area in the second inkjet channel; The first nozzle and the second nozzle are used as the first actual inkjet nozzle, and the third nozzle and the fourth nozzle are used as the second actual inkjet nozzle.

5. The tilted printing method of an inkjet head according to claim 1, characterized in that: The inkjet printing includes multiple scanning processes; the controlling the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction includes: In one scanning process, the first actual inkjet nozzle is controlled to spray white ink onto the printing medium to obtain a white ink area, and the second actual inkjet nozzle is controlled to spray color ink onto the printing medium to obtain a color ink area; wherein the white ink area and the color ink area do not overlap in the same scanning process; During the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink to the printing medium, and the second actual inkjet nozzle is controlled to spray color ink to the white ink area.

6. The tilted printing method of an inkjet head according to any one of claims 1 to 4, characterized in that: The inkjet head further includes a third inkjet channel, and the third inkjet channel jets a third ink different from the first ink and the second ink. The method further includes: Calculating a standard overlapping area of ​​the second inkjet channel and the third inkjet channel in the scanning direction according to the preset tilt angle; Based on the standard overlapping area and the overlapping area, acquiring a first actual inkjet nozzle of the first inkjet channel, a second actual nozzle of the second inkjet channel, and a third actual inkjet nozzle of the third inkjet channel; Control the first actual inkjet nozzle, the second actual inkjet nozzle and the third actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle, the printing area of ​​the second actual inkjet nozzle and the printing area of ​​the third actual inkjet nozzle do not overlap with each other.

7. The tilted printing method of the inkjet head according to claim 6, characterized in that: The inkjet printing includes multiple scanning processes; the controlling the first actual inkjet nozzle, the second actual inkjet nozzle and the third actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction includes: In one scanning process, the first actual inkjet nozzle is controlled to spray white ink on the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to spray color ink on the printing medium to obtain a color ink area, and the third actual inkjet nozzle is controlled to spray varnish on the printing medium to obtain a varnish area; wherein the white ink area, the color ink area and the varnish area do not overlap each other in the same scanning process; During the next scanning process, the inkjet head is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink to the printing medium, the second actual inkjet nozzle is controlled to spray color ink to the white ink area, and the third actual inkjet nozzle is controlled to spray varnish to the color ink area.

8. A tilted printing device for an inkjet head, characterized in that: The device comprises: A tilting module, used to install the inkjet nozzle at a preset tilting angle; wherein the preset tilting angle is the tilting angle of the inkjet nozzle relative to the scanning direction of the printing medium; An overlapping module, used for calculating an overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle; an adjustment module, configured to obtain a first actual inkjet nozzle of the first inkjet channel and a second actual inkjet nozzle of the second inkjet channel based on the overlapping area; A printing module is used to control the first actual inkjet nozzle and the second actual inkjet nozzle to perform inkjet printing on the printing medium according to the scanning direction; wherein the printing area of ​​the first actual inkjet nozzle and the printing area of ​​the second actual inkjet nozzle do not overlap.

9. An electronic device, characterized in that: include: At least one processor, at least one memory and computer program instructions stored in the memory, when the computer program instructions are executed by the processor, implement the method according to any one of claims 1 to 7.

10. A storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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