Inkjet printhead tilt printing method, apparatus, device, and storage medium

Abstract

The application discloses an inclined printing method, device and equipment of an inkjet nozzle and a storage medium, and relates to the technical field of inkjet printing. In the method, the inkjet nozzle is installed at a preset inclination angle, then the overlapping area between different inkjet channels in the scanning direction is calculated according to the preset inclination angle, the actual inkjet nozzle of each inkjet channel is obtained based on the overlapping area, finally, the actual inkjet nozzle is used to perform inkjet printing on the printing medium at the preset inclination angle in the scanning direction, and the printing areas of the actual inkjet nozzles of different inkjet channels do not overlap. Thus, the overlapping area is recalculated when the inkjet nozzle is installed at the preset inclination angle, which is different from the normal installation of the inkjet nozzle, the actual inkjet nozzle of different inkjet channels can be adjusted to perform inkjet printing on the printing medium, so that the utilization rate of the inkjet nozzle when different inks are jetted can be effectively improved, and the diversified demand of the rapid development of the modern market can be met.

Description

Technical Field

[0001] This invention relates to the field of inkjet printing technology, and in particular to a method, apparatus, device, and storage medium for tilt printing with an inkjet printhead. Background Technology

[0002] Inkjet printing is a digital image output technology that uses a printhead to eject ink droplets onto a printing medium to form text or images. Its development stems from the popularization of digital technology and the growth of printing demand. It has been widely used due to its characteristics such as low cost, ease of colorization, digitization, and no restrictions on printing size.

[0003] With continuous innovation in science and technology and the diversification of market demands, the requirements for inkjet printing are becoming increasingly stringent. For example, improving printhead directional printing accuracy by tilting the printhead at a certain angle relative to the printing medium's movement direction is described in patent document (CN116021882A), which discloses a parameter calculation method, apparatus, device, and storage medium for printhead tilt printing. This aims to solve the technical problem of printing errors caused by the difficulty in quickly and accurately obtaining printing parameters when the printhead is tilted. Specifically, it calculates the tilt printing parameters of each row of nozzles based on the tilt angle and physical layout parameters, including initial effective nozzle position parameters and / or shielding position parameters. The shielding position parameters include parameters for the first ink outlet boundary and the second ink outlet boundary. Nozzles located outside the first and second ink outlet boundaries in each row are invalid nozzles for printhead tilt printing. Invalid nozzles do not perform ink ejection during printhead tilt printing, while effective nozzles can be used, thus enabling rapid and accurate acquisition of printing parameters for correct printing when the printhead is tilted. However, the utilization rate of tilted printheads for different inks in related technologies has not been improved compared to normal printhead utilization, making it difficult to meet the development needs of the modern market. Summary of the Invention

[0004] In view of this, the present invention provides a method, apparatus, device and storage medium for tilt printing with inkjet printheads, in order to solve the problem that the utilization rate of tilt printheads for different inks in the prior art is low and cannot meet the needs of modern market development.

[0005] The technical solution adopted in this invention is:

[0006] In a first aspect, the present invention provides a method for tilting printing with an inkjet printhead, the inkjet printhead including at least a first inkjet channel and a second inkjet channel, the first inkjet channel ejecting a first type of ink, the second inkjet channel ejecting a second type of ink different from the first type of ink, each inkjet channel including at least one row of nozzles, the method comprising:

[0007] The inkjet printhead is installed at a preset tilt angle; wherein, the preset tilt angle is the tilt angle of the inkjet printhead relative to the scanning direction of the printing medium;

[0008] The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is calculated based on the preset tilt angle;

[0009] Based on the overlapping region, the first actual inkjet nozzle of the first inkjet channel and the second actual inkjet nozzle of the second inkjet channel are obtained.

[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 overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the preset tilt angle includes:

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

[0013] Obtain the total length parameter of a column of 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 calculating based on the distance parameter, the total length parameter and the preset tilt angle.

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

[0016] The non-overlapping parameters of the first inkjet channel and the second inkjet channel are calculated based on the distance parameter and the preset tilt angle.

[0017] Subtracting the non-overlapping parameter from the total length parameter yields the overlap parameter between 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 obtained.

[0019] In some embodiments, 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 region includes:

[0020] The overlapping region is divided into a first overlapping region and a second overlapping region according to a preset ratio;

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

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

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

[0024] In some embodiments, the inkjet printing includes multiple scanning processes; 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] During a single scan, 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 colored ink onto the printing medium to obtain a colored ink area; wherein, the white ink area and the colored ink area do not overlap during the same scan.

[0026] During the next scan, the inkjet printhead is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink onto the printing medium, while the second actual inkjet nozzle is controlled to spray colored ink onto the white ink area.

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

[0028] The standard overlap area of ​​the second inkjet channel and the third inkjet channel in the scanning direction is calculated based on the preset tilt angle;

[0029] Based on the standard overlap region and the overlap region, 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.

[0030] 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 areas of the first actual inkjet nozzle, the second actual inkjet nozzle, and the third actual inkjet nozzle do not overlap.

[0031] In some embodiments, the inkjet printing includes multiple scanning processes; 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] During a single scan, the first actual inkjet nozzle is controlled to spray white ink onto the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to spray colored ink onto the printing medium to obtain a colored ink area, and the third actual inkjet nozzle is controlled to spray varnish onto the printing medium to obtain a varnish area; wherein, the white ink area, the colored ink area and the varnish area do not overlap with each other during the same scan.

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

[0034] In a second aspect, the present invention provides a tilting printing apparatus for an inkjet printhead, the apparatus comprising:

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

[0036] An overlap module is used to calculate the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the preset tilt angle.

[0037] The adjustment module is used to obtain 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.

[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] Thirdly, embodiments of the present invention also provide an electronic device, including: 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 described above.

[0040] Fourthly, embodiments of the present invention also provide a storage medium storing computer program instructions thereon, which, when executed by a processor, implement the method of the first aspect described above.

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

[0042] The present invention provides a method, apparatus, device, and storage medium for tilt printing with an inkjet printhead. The inkjet printhead includes at least a first inkjet channel and a second inkjet channel. The first inkjet channel ejects a first type of ink, and the second inkjet channel ejects a second type of ink different from the first type of ink. Each inkjet channel includes at least one row of nozzles. In the tilt printing method, the inkjet printhead is first installed at a preset tilt angle, defined as the tilt angle of the inkjet printhead relative to the scanning direction of the printing medium. Then, the overlap area between different inkjet channels in the scanning direction is calculated based on the preset tilt angle, and the actual inkjet nozzles of each inkjet channel are obtained based on the overlap area. Finally, the actual inkjet nozzles are used to perform inkjet printing on the printing medium at the preset tilt angle in the scanning direction, and the printing areas of the actual inkjet nozzles of different inkjet channels are complementary and overlapping. By recalculating the overlap area when the printhead is tilted (different from the normal installation) based on the preset tilt angle, the actual inkjet printheads of different ink channels can be readjusted to inkjet print on the printing medium, thereby effectively improving the utilization rate of the inkjet printhead when ejecting different inks to meet the diversified needs of the rapidly developing modern market. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0044] Figure 1 This is a schematic diagram of a normally installed inkjet printhead in related technologies.

[0045] Figure 2 This is a schematic diagram illustrating the inkjet channel utilization rate of different inks in related technologies.

[0046] Figure 3 This is a schematic flowchart of the tilt printing method of the inkjet printhead in Embodiment 1 of the present invention;

[0047] Figure 4 This is a schematic diagram of an inkjet printhead installed at an angle, provided in an embodiment of the present invention.

[0048] Figure 5 yes Figure 3 A flowchart illustrating the process prior to step S101.

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

[0050] Figure 7 This is a schematic flowchart of a tilted printing method using another inkjet printhead in Embodiment 1 of the present invention;

[0051] Figure 8 yes Figure 3 A flowchart illustrating step S102;

[0052] Figure 9 yes Figure 8 A flowchart illustrating step S403;

[0053] Figure 10 This is a schematic diagram illustrating the principle of overlapping region calculation provided in this embodiment of the invention;

[0054] Figure 11 yes Figure 3 A flowchart illustrating step S103;

[0055] Figure 12 A schematic diagram of another tilted inkjet printhead provided in an embodiment of the present invention;

[0056] Figure 13 This is a structural block diagram of the tilted printing device with inkjet printhead in Embodiment 2 of the present invention;

[0057] Figure 14 This is a schematic diagram of the electronic device in Embodiment 3 of the present invention. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, the element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Where there is no conflict, embodiments of the present invention and the various features thereof can be combined with each other, all of which are within the scope of protection of the present invention.

[0059] Inkjet printing is a digital image output technology that uses a printhead to eject ink droplets onto a printing medium to form text or images. It is widely used due to its low cost, ease of colorization, digitization, and unlimited printing size. A properly installed inkjet printhead in related technologies includes... Figure 1 As shown, the inkjet printhead includes two inkjet channels: inkjet channel a for spraying white ink and inkjet channel b for spraying colored ink.

[0060] Reference Figure 1 As shown, when the inkjet printhead moves from left to right to scan the printing media, the position P passed by inkjet channel a will be passed by inkjet channel b as the printhead moves, and inkjet channel b completely overlaps with inkjet channel a when passing through position P. In inkjet printing, the printhead is controlled to step in a stepping direction to cover the white ink with colored ink. The white ink and colored ink have a sequential printing order. Therefore, in order to prevent the white ink and colored ink from being printed simultaneously and causing mixing and printing errors, the nozzle positions used by different inkjet channels need to be different when jetting white ink and colored ink.

[0061] For specific details, please refer to Figure 2As shown, an inkjet channel includes at least one row (e.g., 30 nozzles) for ejecting printing material (ink) to the printing medium. In related technologies, the nozzles of the white ink channel are typically set to the first 50% of the channel, and the nozzles of the color ink channel are set to the last 50%. After the printhead prints white ink, the printhead is controlled to step and then print color ink, thereby covering the white ink with color ink. Therefore, in inkjet operation, only 50% of the nozzles in each inkjet channel are used for inkjet printing, resulting in low nozzle utilization for different inks. Although some related technologies have proposed improving printing accuracy by rotating and tilting the printhead, they still do not substantially improve the nozzle utilization, making it difficult to meet the diverse demands of the modern market for high-quality, high-efficiency printing.

[0062] Based on this, embodiments of the present invention provide a method, apparatus, electronic device, and storage medium for tilted printing of inkjet printheads. It can recalculate the overlapping area of ​​the printhead when tilted, which is different from that when the printhead is normally installed, by combining a preset tilt angle. It can readjust the ink ejection printheads of different ink ejection channels to perform inkjet printing on the printing medium, thereby effectively improving the utilization rate of the inkjet printhead when ejecting different inks, so as to meet the diversified needs of the rapidly developing modern market.

[0063] This application provides a method, apparatus, electronic device, and storage medium for tilting inkjet printheads, which are described in detail through the following embodiments.

[0064] Example 1

[0065] Please see Figure 3 , Figure 3 This is an optional flowchart of the tilting printing method for inkjet printheads provided in the embodiments of the present invention. Figure 3 The method may include, but is not limited to, steps S101 to S104. It is also understood that this embodiment... Figure 3 The order of steps S101 to 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: Install the inkjet printhead at a preset tilt angle.

[0067] In some embodiments, the preset tilt angle is the tilt angle of the inkjet printhead relative to the scanning direction of the printing media. Specifically, refer to... Figure 4 As shown, the inkjet printhead scans the printing media horizontally from left to right. Even if different inkjet printheads have different preset tilt angles, the scanning direction remains unchanged. It is understandable that the preset tilt angle can be adjusted according to actual printing needs to achieve optimal printing accuracy and nozzle utilization.

[0068] In some embodiments, the preset tilt angle ranges from 45° to 70°, allowing for clockwise or counterclockwise tilting during installation. Preferably, the preset tilt angle is 60° counterclockwise during installation, but this embodiment does not impose any limitation on this.

[0069] Step S102: Calculate the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the preset tilt angle.

[0070] In some embodiments, the overlap area between different inkjet channels in the scanning direction can be calculated based on a preset tilt angle. (Refer to...) Figure 4 As shown, since the inkjet printhead is installed at an angle, the projections a' and b' of the first inkjet channel a and the second inkjet channel b in the scanning direction will not completely overlap, but will have a height difference, thus forming a certain overlapping area.

[0071] Step S103: Obtain 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.

[0072] In some embodiments, after determining the overlapping area between different inkjet channels, the ink nozzles of each inkjet channel can be adaptively adjusted according to the size of the overlapping area. Specifically, the first actual inkjet nozzle of the first inkjet channel and the second actual nozzle of the second inkjet channel are obtained. Specifically, nozzles located within the overlapping area can be closed or shielded to prevent different inks from mixing on the printing medium, or the nozzles in the overlapping area can be configured based on different inkjet channels; this embodiment does not impose any limitations on this.

[0073] Step S104: Control 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, in which colored ink is applied over the white ink ejected in the previous scan. Specifically, in one scan, a first actual inkjet nozzle is controlled to eject white ink onto the printing medium to form a white ink area, and a second actual inkjet nozzle is controlled to eject colored ink onto the printing medium to form a colored ink area; wherein the white ink area and the colored ink area do not overlap in the same scan. In the next scan, the inkjet printhead is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to eject white ink onto the printing medium, and the second actual inkjet nozzle is controlled to eject colored ink onto the white ink area. It can be understood that after completing one scan, the process of controlling the inkjet printhead to step and perform scanning is repeated until inkjet printing is completed.

[0075] It's worth noting that when the inkjet printhead is installed normally, its printing accuracy is lower than when it's installed at an angle. For example, for the XP600 single-head white-color printhead, the vertical resolution per channel is only 180 DPI (Dots Per Inch) when installed normally, which can easily result in washed-out printing.

[0076] It is understood that "single channel" refers to the channel in the printhead used for ejecting ink, specifically the channel used for ejecting white or colored ink. "Vertical resolution" refers to the ink droplet density that the printhead can print in the vertical (or longitudinal) direction, measured in dots per inch (DPI). "180 DPI" is the vertical resolution of the XP600 single printhead. This value is relatively low, meaning that the ink droplet distribution in the vertical direction is sparse, insufficient to meet the requirements of high-quality printing, and may result in poor print quality. However, in some embodiments where the XP600 single printhead is installed at a preset angle, please refer to the specific details... Figure 4 As shown, its projected length in the scanning direction is shorter than that of a normal installation, meaning the printing range in the vertical (or longitudinal) direction is smaller than that of a normal installation. Therefore, with the number of nozzles in the printhead remaining unchanged, the ink droplet density that can be printed in the vertical (or longitudinal) direction will increase, i.e., the DPI will increase, thereby improving printing accuracy.

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

[0078] In some embodiments, it is possible to install the printhead at different preset tilt angles for different printing tasks to achieve optimal 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 range of inkjet printhead rotation angle based on 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 printhead can be smaller, thereby maximizing nozzle utilization and printing efficiency while ensuring printing accuracy. Conversely, for printing tasks with higher data accuracy requirements, the rotation angle range of the inkjet printhead needs to be larger to ensure that the printed image meets the printing accuracy requirements. It is understood 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, and this embodiment does not limit this.

[0081] S120: Determine the actual tilt angle within the rotation angle range based on the priority parameters of the print job.

[0082] In some embodiments, the priority parameters for a print job may include, but are not limited to, print accuracy, print efficiency, and print error. Specifically, the actual tilt angle is calculated using the following formula:

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

[0084] Where M is the (optimal) actual tilt angle, Precision is the printing precision, Efficiency is the printing efficiency, and Error is the printing error (such as overlap area deviation and / or step error); w1, w2 and w3 correspond to the weights of each priority parameter. The values ​​of each weight can be adjusted according to task requirements, and this embodiment does not impose any restrictions on this.

[0085] Reference Figure 5 As shown, in some embodiments of this application, before installing the inkjet printhead at a preset tilt angle, the above step S101 may include, but is not limited to, the following steps S201 to S202.

[0086] Step S201: Establish a Cartesian coordinate system with the lower left corner of the initial position of the inkjet printhead as the origin and the scanning direction as the positive X-axis.

[0087] In some embodiments, the initial position refers to the position corresponding to the normal installation of the inkjet printhead. A Cartesian coordinate system is established with the lower left corner of the initial position of the inkjet printhead as the origin and the scanning direction as the positive X-axis. Specifically, in the initial position, the inkjet channels in the inkjet printhead are arranged front-to-back from left to right along the scanning direction, and the arrangement direction of a row of nozzles in the inkjet channel is the nozzle column direction, which is the same as the Y-axis direction of the Cartesian coordinate system.

[0088] Step S202: Rotate the inkjet printhead at the origin with a preset tilt angle around an axis that is perpendicular to both the scanning direction and the nozzle column direction to obtain the tilt position of the inkjet printhead.

[0089] In some embodiments, an axis perpendicular to both the scanning direction and the nozzle array direction is selected as the rotation axis. (Refer to...) Figure 6 As shown, the inkjet printhead is rotated at the origin around the pivot point by a preset tilt angle θ, placing the printhead in a tilted position. It can be understood that in the tilted position, the inkjet channels within the printhead are arranged sequentially from bottom to top at a preset tilt angle, and the direction of the nozzle array also tilts accordingly as the printhead rotates.

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

[0091] Step S301: Obtain the bottom reference line of the inkjet printhead.

[0092] In some embodiments, a bottom reference line is determined for the inkjet printhead. This line can be a straight line at the bottom of the inkjet printhead and is used as a reference for rotation. In practice, the bottom reference line can be determined by observing the physical structure of the inkjet printhead or by using measuring tools; this embodiment does not limit this approach.

[0093] Step S302: When the inkjet printhead rotates counterclockwise at the origin, the preset tilt angle obtained is the angle between the bottom reference line and the positive X-axis direction in the Cartesian coordinate system.

[0094] In some embodiments, when the inkjet printhead rotates counterclockwise at the origin, it means that the printhead rotates in the opposite direction to the positive X-axis. The preset tilt angle θ is obtained by acquiring the angle between the bottom reference line and the positive X-axis in the Cartesian coordinate system.

[0095] Step S303: When the inkjet printhead rotates clockwise at the origin, the preset tilt angle obtained is the angle between the bottom reference line and the negative X-axis direction in the Cartesian coordinate system.

[0096] In some embodiments, when the inkjet printhead rotates clockwise at the origin, it means that the printhead rotates in the same direction as the positive X-axis. The preset tilt angle θ is obtained by acquiring the angle between the bottom reference line and the negative X-axis direction in the Cartesian coordinate system. It is understood that, for consistency, this angle can be considered as an angle opposite to the negative X-axis direction (i.e., a positive angle) and 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 to positive or negative values ​​according to specific circumstances; this embodiment does not impose such limitations.

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

[0098] Step S401: Obtain the distance parameter between the first inkjet channel and the second inkjet channel.

[0099] In some embodiments, the distance parameter between the first inkjet channel and the second inkjet channel is obtained. For a printhead including multiple inkjet channels, the 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 can be understood that the distance parameters between each inkjet channel are the same, that is, the spacing between each inkjet channel in the inkjet printhead is set to the same distance.

[0100] Step S402: Obtain the total length parameter of a row of nozzles in the first inkjet channel or the second inkjet channel.

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

[0102] Step S403: Calculate the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the distance parameter, the total length parameter and the preset tilt angle.

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

[0104] Step S501: Calculate the non-overlapping parameters of the first inkjet channel and the second inkjet channel based on the distance parameter and the preset tilt angle.

[0105] In some embodiments, the non-overlapping parameters between the first inkjet channel and the second inkjet channel can be obtained by calculating based on the distance parameter and the tangent of the preset tilt angle. Specifically, refer to... Figure 10 As shown, the distance parameter L1 is multiplied by the tangent of the preset tilt angle, tanθ, i.e., L1*tanθ. This 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 with the inkjet printhead 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 overlap parameter between the first inkjet channel and the second inkjet channel.

[0107] In some embodiments, refer to Figure 10As shown, subtracting the first non-overlapping parameter L1*tanθ from the total length parameter L2 yields the overlap parameter between 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 the scanning direction with the inkjet printhead, the overlap parameter indicates the nozzle overlap area between the second inkjet channel b and the first inkjet channel a.

[0108] Step S503: Based on the overlap parameter, obtain the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction.

[0109] In some embodiments, specifically, referencing Figure 10 As shown, the overlap parameter corresponds to the overlapping area at the head of the second inkjet channel b and the overlapping area at the tail of the first inkjet channel a. The overlap parameter can be used to obtain the overlapping area of ​​the first and second inkjet channels in the scanning direction.

[0110] Reference Figure 11 As shown, in some embodiments of this 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 is 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%, which corresponds to dividing the overlapping area in half, with the first overlapping area first and the second overlapping area second. 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, 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.

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

[0115] Step S603: 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.

[0116] In some embodiments, for the second inkjet channel, the nozzle in the second overlapping region is configured as the third nozzle, which will normally eject colored ink during printing. Simultaneously, the nozzle in the second non-overlapping region is configured as the fourth nozzle; the second non-overlapping region refers to the area outside the overlapping region in the second inkjet channel.

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

[0118] In some embodiments, the first and second nozzles are used as the first actual inkjet nozzles for the white ink channel, and the third and fourth inkjet nozzles are used as the second actual inkjet nozzles for the color ink channel. For example, when the overlapping area occupies 2 / 3 of the inkjet channel (i.e., the non-overlapping area is 1 / 3 of the inkjet channel), the overlapping area is divided at a preset ratio of 50%. In this case, 1 / 3 + 1 / 3 = 2 / 3 of the nozzles in the white ink channel are normally ejecting white ink, and similarly, 1 / 3 + 1 / 3 = 2 / 3 of the nozzles in the color ink channel are normally ejecting color ink. This increases the nozzle utilization rate from 50% to 67% compared to related technologies. Thus, by dividing the overlapping area and adjusting the inkjet nozzles of different inkjet channels, white ink and color ink can be separated in the overlapping area, while white ink and color ink in the non-overlapping area work normally, ensuring correct printing while effectively improving the nozzle utilization rate of different inks.

[0119] Reference Figure 12 As shown, in some embodiments of this application, the inkjet printhead may further include a third inkjet channel c, which ejects a third ink different from the first and second inks. For example, the three inkjet channels may eject different colors of colored ink and white ink respectively, or they may eject white ink, colored ink, and varnish respectively. It is understood that colored ink refers to CMYK ink, the four inks commonly used in color printing, corresponding to cyan, magenta, yellow, and black (the last letter of Black is used to avoid confusion with blue). The colored ink channel can contain a single color ink or a mixture of multiple colors; this embodiment does not limit this.

[0120] Specifically, the standard overlap area of ​​the second and third inkjet channels in the scanning direction is calculated based on a preset tilt angle. Based on this standard overlap area and the overlap area itself, the first actual inkjet nozzle of the first inkjet channel, the second actual inkjet nozzle of the second inkjet channel, and the third actual inkjet nozzle of the third inkjet channel are obtained. Finally, the first, second, and third actual inkjet nozzles are controlled to perform inkjet printing on the printing medium in the scanning direction; wherein the printing areas of the first, second, and third actual inkjet nozzles do not overlap. It is understood that the calculation method for the reference overlap area is basically the same as the calculation method for the overlap area, and will not be elaborated further here.

[0121] In some embodiments, the first inkjet channel a ejects white ink, the second inkjet channel b ejects colored ink, and the third inkjet channel c ejects varnish. Specifically, during a single scan, the first actual inkjet nozzle is controlled to eject white ink onto the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to eject colored ink onto the printing medium to obtain a colored ink area, and the third actual inkjet nozzle is controlled to eject varnish onto the printing medium to obtain a varnish area; wherein the white ink area, colored ink area, and varnish area do not overlap during the same scan. In the next scan, the inkjet printhead is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to eject white ink onto the printing medium, the second actual inkjet nozzle is controlled to eject colored ink onto the white ink area, and the third actual inkjet nozzle is controlled to eject varnish onto the colored ink area.

[0122] Understandably, spraying white ink onto the printing media first provides a white background, making the subsequent colored inks appear more vibrant and accurate. This is especially true when printing on dark or colored substrates, where the white ink layer acts as a barrier and highlighter. After the white ink layer has cured and dried, colored inks are printed on top. These colored inks can contain various colors, combined and matched according to design requirements. The final step is to coat the colored ink layer with a varnish. The main function of the varnish is to increase the gloss of the printed material and protect the colored ink layer from environmental damage (such as water, oil, and ultraviolet light). The type and application method of the varnish can be selected based on different needs. For example, some varnishes create a high-gloss effect, making the printed material look brighter; while others focus more on abrasion resistance and weather resistance.

[0123] In some embodiments, when large areas of color need to be filled quickly, the nozzles in the same inkjet channel can eject ink simultaneously to improve printing speed and efficiency. In specific printing tasks where uniform color and no significant color difference are required, simultaneous ink ejection can also ensure color consistency.

[0124] In some embodiments, when printing fine patterns or text, not ejecting ink simultaneously ensures the ejection precision and positional accuracy of each nozzle, resulting in a clearer print. Specifically, in grayscale printing, by controlling the ejection time and droplet size of different nozzles, variations in grayscale levels can be achieved, resulting in a more refined print.

[0125] Understandably, for the XP600 single-head white / color printhead, the vertical resolution per channel is only 180 DPI during normal installation. (Refer to...) Figure 4 As shown, when the preset tilt angle is 60°, the single-channel vertical resolution of the XP600 printhead can be increased to 360 DPI when tilted, which is double the DPI of the normal installation. This is because when tilted, its projected length in the scanning direction is shorter than that of the normal installation by L2*cos60°, which is half the length. Therefore, with the number of nozzles of the printhead remaining unchanged, the ink droplet density that can be printed in the vertical (or longitudinal) direction will double, increasing the DPI from 180 to 360. Assuming that the original printing task required 12 passes, after tilting, it only requires 6 passes ("pass" is a term used to describe the process of the printhead completing one full lateral movement on the printing medium, i.e., from beginning to end, from left to right, or in the opposite direction), and the printing effect of solid colors is significantly better than that of the normal installation, effectively improving printing efficiency and nozzle utilization.

[0126] In some embodiments of this application, the preset tilt angle can range from 45 degrees clockwise to 70 degrees counterclockwise, with a preferred embodiment being 60 degrees. Specifically, referring to Table 1 below, which is a statistical table of inkjet printhead tilt installation applications, the inkjet printhead can be controlled by scanning or rotation. Scanning control typically achieves printing by moving the printhead or printing medium. The printhead moves along a certain trajectory on a two-dimensional plane while ejecting ink to form images or text. This method is widely used in the field of planar printing. Rotation control achieves printing by rotating the printhead or printing medium. This method has significant advantages in specific application scenarios, such as cylindrical printing and sock printing machines. Specifically, when a single XP600 printhead is tilted at 60 degrees, the printing capacity for white color or white color varnish is increased by at least 50%. When a single i3200-HD printhead is tilted at 60 degrees, the printing capacity for white color or white color varnish is increased by at least 75%-100%.

[0127] Table 1

[0128]

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

[0130] In some embodiments of this application, the bottom reference line of the inkjet printhead can be selected as the axis of rotation to rotate the printhead in three-dimensional space. This involves raising the printhead away from the printing medium or lowering it towards the printing medium. The preset tilt angle corresponds to the angle between the plane containing the printhead and the plane of the two-dimensional Cartesian coordinate system. It is understood that rotation in three-dimensional space allows the printhead to more flexibly adjust its ejection angle and position, adapting to printing media of different shapes and sizes. This helps achieve more complex printing tasks, such as printing on surfaces with different curvatures or tilts. It also optimizes the ink ejection path, reducing ink dispersion and waste in the air, thereby improving print clarity and resolution. A tilted printhead also helps achieve more uniform ink distribution, especially when printing large areas of solid color, significantly reducing banding and streaking. For certain special printing tasks, such as printing images or text with a three-dimensional effect, rotating and tilting the printhead can create unique visual effects. Furthermore, it can be used to print media with special textures or patterns, such as leather, wood, or metal surfaces.

[0131] It is understood that those skilled in the art can set the rotating shaft according to actual needs, and tilt the inkjet printhead in different directions and angles. This application embodiment does not limit this. By recalculating the overlap area between the tilted installation of the printhead and the normal installation of the printhead in combination with the preset tilt angle, the ink ejection printheads of different ink ejection channels are readjusted to inkjet print the printing media, thereby effectively improving the utilization rate of the inkjet printhead when ejecting different inks, so as to meet the diversified needs of the rapidly developing modern market.

[0132] Example 2

[0133] Please see Figure 13 Embodiment 2 of the present invention also provides a tilting printing device for an inkjet printhead, the device comprising:

[0134] The tilting module is used to install the inkjet printhead at a preset tilt angle; wherein, the preset tilt angle is the tilt angle of the inkjet printhead relative to the scanning direction of the printing media.

[0135] The overlap module is used to calculate the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to a preset tilt angle.

[0136] The adjustment module is used to obtain 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.

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

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

[0139] Example 3

[0140] In addition, combined Figure 3 The tilt printing method of the inkjet printhead described in Embodiment 1 of the present invention can be implemented by an electronic device. Figure 14 A schematic diagram of the hardware structure of the electronic device provided in Embodiment 3 of the present invention is shown.

[0141] Electronic devices may include processors and memory storing computer program instructions.

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

[0143] The memory may include a large-capacity storage device for data or instructions. For example, and not limitingly, the memory may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk drive, a magneto-optical disk drive, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory may include removable or non-removable (or fixed) media. Where appropriate, the memory may be internal or external to 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 flash memory, or a combination of two or more of these.

[0144] The processor reads and executes computer program instructions stored in the memory to implement any of the inkjet printhead tilt printing methods in the above embodiments.

[0145] In one example, the electronic device may also include a communication interface and a bus. For example, Figure 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 enable communication between various modules, devices, units and / or equipment in the embodiments of the present invention.

[0147] A bus, including hardware, software, or both, couples components of the device together. For example, and not limitingly, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, a bus may include one or more buses. While specific buses are described and illustrated in embodiments of the invention, the invention contemplates any suitable bus or interconnect.

[0148] Example 4

[0149] In addition, in conjunction with the tilt printing method of the inkjet printhead in Embodiment 1 above, Embodiment 4 of the present invention can also provide a computer-readable storage medium for implementation. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the tilt printing methods of the inkjet printhead in the above embodiments.

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

[0151] It should be clarified that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are 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. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of the present invention.

[0152] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this invention are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals 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, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

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

[0154] The above description is merely a specific embodiment of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A method for tilting inkjet printheads, characterized in that, The inkjet printhead includes at least a first inkjet channel and a second inkjet channel. The first inkjet channel ejects a first type of ink, and the second inkjet channel ejects a second type of ink different from the first type of ink. Each inkjet channel includes at least one row of nozzles. The method includes: The inkjet printhead is installed at a preset tilt angle; wherein, the preset tilt angle is the tilt angle of the inkjet printhead relative to the scanning direction of the printing medium; The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is calculated based on the preset tilt angle; Based on the overlapping region, the first actual inkjet nozzle of the first inkjet channel and the second actual inkjet nozzle of the second inkjet channel are obtained. 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 tilting printing method for an inkjet printhead according to claim 1, characterized in that, The step of calculating the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the preset tilt angle includes: Obtain the distance parameter between the first inkjet channel and the second inkjet channel; Obtain the total length parameter of a column of 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 calculating based on the distance parameter, the total length parameter and the preset tilt angle.

3. The tilting printing method for an inkjet printhead according to claim 2, characterized in that, 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: The non-overlapping parameters of the first inkjet channel and the second inkjet channel are calculated based on the distance parameter and the preset tilt angle. Subtracting the non-overlapping parameter from the total length parameter yields the overlap parameter between 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 obtained.

4. The tilting printing method of the inkjet printhead according to claim 1, characterized in that, The step of 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 region includes: The overlapping region is divided into a first overlapping region and a second overlapping region according to a preset ratio; For the first inkjet channel, the nozzle in the first overlapping region is set as the first nozzle, and the nozzle in the first non-overlapping region is set as the second nozzle; wherein, the first non-overlapping region is the region outside the overlapping region in the first inkjet channel; For the second inkjet channel, the nozzle in the second overlapping region is set as the third nozzle, and the nozzle in the second non-overlapping region is set as the fourth nozzle; wherein, the second non-overlapping region is the region outside the overlapping region in the second inkjet channel; The first nozzle and the second nozzle are designated as the first actual inkjet nozzles, and the third nozzle and the fourth nozzle are designated as the second actual inkjet nozzles.

5. The tilting printing method for an inkjet printhead according to claim 1, characterized in that, The inkjet printing includes multiple scanning processes; 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: During a single scan, 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 colored ink onto the printing medium to obtain a colored ink area; wherein, the white ink area and the colored ink area do not overlap during the same scan. During the next scan, the inkjet printhead is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink onto the printing medium, while the second actual inkjet nozzle is controlled to spray colored ink onto the white ink area.

6. The tilting printing method using an inkjet printhead according to any one of claims 1 to 4, characterized in that, The inkjet printhead further includes a third inkjet channel, which ejects a third ink different from the first ink and the second ink. The method further includes: The standard overlap area of ​​the second inkjet channel and the third inkjet channel in the scanning direction is calculated based on the preset tilt angle; Based on the standard overlap region and the overlap region, 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. 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 areas of the first actual inkjet nozzle, the second actual inkjet nozzle, and the third actual inkjet nozzle do not overlap.

7. The tilting printing method of the inkjet printhead according to claim 6, characterized in that, The inkjet printing includes multiple scanning processes; controlling the first, second, and third actual inkjet nozzles to perform inkjet printing on the printing medium according to the scanning direction includes: During a single scan, the first actual inkjet nozzle is controlled to spray white ink onto the printing medium to obtain a white ink area, the second actual inkjet nozzle is controlled to spray colored ink onto the printing medium to obtain a colored ink area, and the third actual inkjet nozzle is controlled to spray varnish onto the printing medium to obtain a varnish area; wherein, the white ink area, the colored ink area and the varnish area do not overlap with each other during the same scan. During the next scan, the inkjet printhead is controlled to step in a direction perpendicular to the scanning direction, and the first actual inkjet nozzle is controlled to spray white ink onto the printing medium, the second actual inkjet nozzle is controlled to spray colored ink onto the white ink area, and the third actual inkjet nozzle is controlled to spray varnish onto the colored ink area.

8. A tilting printing device with an inkjet printhead, characterized in that, The device includes: A tilting module is used to install the inkjet printhead at a preset tilt angle; wherein, the preset tilt angle is the tilt angle of the inkjet printhead relative to the scanning direction of the printing medium; An overlap module is used to calculate the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the preset tilt angle. The adjustment module is used to obtain 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. 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, which, when executed by the processor, implement the method as described in any one of claims 1-7.

10. A storage medium storing computer program instructions thereon, characterized in that, The method as described in any one of claims 1-7 is implemented when the computer program instructions are executed by the processor.

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