CN116160774A - Printing method and ink-jet printer - Google Patents

Abstract

The present disclosure relates to the field of inkjet printers, and in particular, to a printing method and an inkjet printer. In the embodiment of the application, the ink-jet printer can determine the working state of each jet hole in the printing process, and when the jet head comprises a first jet hole in the ink-jet state, the ink-jet assembly communicated with the first jet hole is controlled to execute the ink-jet action so as to jet ink from the jet hole and print a target image; when the spray head comprises a second spray hole in a non-ink-jet state, controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spray action so that the ink oscillates in the second spray holes, wherein the oscillation direction of the ink comprises the length direction oscillation of the spray holes. Therefore, in the embodiment of the application, in the process of printing the target image, when the jet hole does not jet ink, the vibrating ink also exists in the jet hole, so that the inside and the surface of the jet hole which do not need to jet ink are in a wetting state, drying or precipitation of the ink at the jet hole is effectively avoided, and the printing quality is improved.

Description

Printing method and ink-jet printer

Technical Field

The present disclosure relates to the field of inkjet printers, and more particularly, to a printing method and an inkjet printer.

Background

In the printing process of the inkjet printer, if the image to be printed includes a blank image or there is a large blank area in the image to be printed, the nozzle holes may be in a non-inkjet state for a long period of time. When the ink in the spray head is easy to dry or deposit, the ink on the surface of the spray hole can be dried or deposited after the spray hole is not sprayed for a long time, so that when the spray hole needs to work for printing, the spray hole can be poor in ink spraying state, the edge of an image to be printed on a printing medium can be deficient, the printing quality is poor, and even the scrapping of a printing material can be caused.

Disclosure of Invention

In order to improve printing quality, the embodiment of the application provides a printing method and an inkjet printer, which can control ink in spray holes in a non-inkjet state to oscillate in the spray holes in the process of printing a target image by a spray head, so that all spray holes on the spray head are in a wetting state, and drying or precipitation of the ink on the surfaces of the spray holes is effectively avoided.

In order to solve the technical problems, the embodiment of the application provides the following technical scheme:

in a first aspect of the present application, a printing method is provided, applied to an inkjet printer, the inkjet printer comprising a plurality of nozzles, each nozzle comprising a plurality of inkjet assemblies and an orifice in communication with the inkjet assemblies; in the method: in the process of printing a target image by a spray head, determining the working state of each spray hole in a plurality of spray holes by an ink-jet printer, wherein the working state is an ink-jet state or an ink-non-jet state; when the plurality of spray holes comprise a first spray hole, controlling an ink jet assembly communicated with the first spray hole to execute ink jet action so as to spray ink from the first spray hole and print a target image on a printing medium; when the plurality of spray holes comprise second spray holes, controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spraying action so as to make ink vibrate in at least part of the second spray holes, wherein the vibration direction of the ink comprises the length direction of the second spray holes; the first spray hole is used for showing at least one spray hole in an ink-jet state in the working state, and the second spray hole is used for showing at least one spray hole in a non-ink-jet state in the working state.

In the embodiment of the application, the ink-jet printer can determine the working state of each spray hole in the printing process, and when the spray head comprises a first spray hole in the ink-jet state, the ink-jet printer controls an ink-jet assembly communicated with the first spray hole to execute ink-jet action so as to enable ink to be sprayed out of the spray hole and print a target image; when the spray head comprises a second spray hole in a non-ink-jet state, the ink-jet printer controls the ink-jet assembly communicated with at least part of the second spray holes to execute a creeping spraying action so that the ink oscillates in the second spray holes, and the oscillation direction of the ink comprises the length direction oscillation of the spray holes. Therefore, in the embodiment of the application, in the process of printing the target image, when the jet hole does not jet ink, the vibrating ink also exists in the jet hole, so that the inside and the surface of the jet hole which do not need to jet ink are in a wetting state, drying or precipitation of the ink at the jet hole is effectively avoided, and the printing quality is improved.

In some embodiments, the ink jet assembly includes an ink chamber and a vibrating member disposed outside the ink chamber, the vibrating member being located on a side of the ink chamber remote from the orifice, the ink chamber in communication with the orifice, the ink chamber storing ink therein; the controlling the inkjet assembly in communication with at least some of the second orifices to perform a vermicular jetting action to oscillate ink in at least some of the second orifices includes: controlling the vibrating piece outside the ink cavity communicated with at least part of the second spray holes to vibrate for the first change of the pressure of the ink in the ink cavity communicated with at least part of the second spray holes, so that the ink oscillates in at least part of the second spray holes.

In some embodiments, the controlling the inkjet assembly to perform an inkjet action to eject ink from the first orifice and print the target image on a print medium includes: controlling the vibrating member outside the ink chamber communicating with the first orifice to generate a second vibration so as to generate a second change in pressure to which the ink in the ink chamber communicating with the first orifice is subjected, thereby causing the ink to be ejected from the second orifice and printing the target image on the printing medium; wherein the amplitude of the second vibration is greater than the amplitude of the first vibration.

In some embodiments, the step of determining the operating status of each of the plurality of injection orifices includes: acquiring initial inkjet data of a target image; and determining the working state of each spray hole in the plurality of spray holes according to the initial ink-jet data.

In some embodiments, the initial inkjet data includes first inkjet data for controlling the inkjet assembly to perform the inkjet action to print the target image and second inkjet data for controlling the inkjet assembly not to eject ink; before the controlling the inkjet assembly in communication with at least some of the second orifices to perform a vermicular jetting event, the method further comprises: and determining third ink jetting data based on the second ink jetting data, wherein the third ink jetting data is used for controlling the ink jetting assembly communicated with at least part of the second jet holes to execute the vermicular jetting action.

In some embodiments, the controlling the inkjet assembly in communication with at least some of the second orifices to perform a peristaltic jetting action includes: controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spray action according to preset action parameters; the action parameters comprise the frequency of the vermicular spraying action and/or the time interval between two adjacent vermicular spraying actions.

In some embodiments, the method further comprises: the inkjet printer adjusts the action parameters according to the printing environment, the type of ink, and/or the printing effect of the target image.

In some embodiments, the method further comprises: the method comprises the steps that an inkjet printer obtains the temperature inside a spray head; and if the temperature is greater than the preset temperature threshold, reducing the magnitude of the action parameter.

In some embodiments, the frequency of the inkjet action is the same as the frequency of the vermicular spraying action.

In a second aspect of the present application, there is also provided an inkjet printer comprising: a processor, and a memory storing instructions that, when executed by the processor, cause the inkjet printer to perform the method of the first aspect.

In a third aspect of the present application, there is also provided a computer readable storage medium, characterized in that the computer readable storage medium stores instructions that, when executed by an inkjet printer, cause the inkjet printer to perform the method of the first aspect.

It should be understood that the description in this summary is not intended to limit the critical or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments of the present invention will be briefly described below. It is evident that the drawings described below are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of a hardware configuration of an inkjet printer for performing a printing method according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a prior art inkjet head when the inkjet assembly is not ejecting ink;

FIG. 3 is a flow chart of a printing method provided by one embodiment of the present application;

fig. 4 (a), 4 (b) and 4 (c) are partial cross-sectional views of a head for explaining the ink ejection operation of the ink jet assembly.

Detailed Description

The principles and spirit of the present disclosure will be described below with reference to several exemplary embodiments shown in the drawings. It should be understood that these specific embodiments are described merely to enable those skilled in the art to better understand and practice the present disclosure and are not intended to limit the scope of the present disclosure in any way. In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.

As used herein, the term "comprising" and the like should be understood to be open-ended, i.e., including, but not limited to. The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first," "second," and the like, may refer to different or the same object and are used solely to distinguish one from another without implying a particular spatial order, temporal order, order of importance, etc. of the referenced objects.

Fig. 1 schematically illustrates the structure of an inkjet printer, and an inkjet printer 100 shown in fig. 1 includes the hardware structure of the inkjet printer illustrated in fig. 1, and an inkjet printer 10 shown in fig. 1 includes a processor 11, a memory 12, and at least one head 13. It will be appreciated by those skilled in the art that the structure shown in fig. 1 is not limiting of the inkjet printer, and the inkjet printer may include more or fewer components than shown, or may combine certain components, or split certain components, or may have a different arrangement of components.

The processor 11 and the memory 12 may be connected by a bus or otherwise, which is illustrated in fig. 1 as a bus connection.

The memory 12 is used as a non-volatile computer readable storage medium for storing non-volatile software programs, non-volatile computer executable programs and modules, and the processor 11 executes the non-volatile software programs, instructions and modules stored in the memory 12 to perform various functional applications and data processing of the inkjet printer, i.e. to implement the methods provided in any of the embodiments of the present application.

The memory 12 may include a storage program area that may store an operating system, at least one application program required for functions, and a storage data area; the storage data area may store data created according to the use of the inkjet printer, or the like. In addition, memory 12 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 12 may optionally include memory located remotely from processor 11, which may be connected to the controller via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The head 13 is used to print a target image on a printing medium. The head 13 may include a first head unit, a second head unit, a third head unit, and a fourth head unit; wherein the first head unit is used for printing Cyan ink (Cyan, C), the second head unit is used for spraying Magenta ink (Magenta, M), the third head unit is used for spraying Yellow ink (Yellow, Y), and the fourth head unit is used for spraying Black ink (Black, K). C. M, Y and K are four basic colors, and the processor 11 generates a desired color by controlling each of the head units in the head to print different doses of ink. In other embodiments, each of the nozzles further includes a nozzle unit for printing other color inks, for example, the nozzle may further include a nozzle unit for printing gold ink, baby blue ink, and/or silver ink.

Specifically, the nozzle 13 includes a plurality of ink jet assemblies and a plurality of nozzles, and the plurality of nozzles are arranged according to a certain rule. Wherein, an ink jet component is communicated with an orifice. The ink jet assembly comprises a vibrating piece and an ink cavity, wherein the vibrating piece is positioned on one side of the ink cavity away from the spray hole. Specifically, the vibrating member includes a piezoelectric element (e.g., piezoelectric ceramic) and a vibrating plate, wherein the vibrating plate is located between the piezoelectric element and the ink chamber, and the vibrating plate is vibrated by the piezoelectric element. Fig. 2 schematically illustrates a partial structure of a head, and as shown in fig. 2, the ink jet assembly 200 includes a vibration plate 201, an ink chamber 202, and an orifice 203 in this order, wherein the ink chamber 202 communicates with the orifice 203.

In general, in the course of a print job by an inkjet printer, when an image to be printed of the inkjet printer includes a blank image or there is a large blank area in the image to be printed, the nozzle holes located above the blank area are free from ink ejection for a long period of time. Referring to fig. 2, in the prior art, when the operation state of the nozzle 203 is the non-ink-jet state, the piezoelectric element does not vibrate, so that the vibration plate 201 does not vibrate, and the ink in the nozzle 203 is in a static state. When the ink in the ink cavity is the ink which is easy to dry or deposit, the ink on the surface of the spray hole is easy to dry or deposit, so that the edge of a printed target image on a printing medium is in a virtual phenomenon when the ink is sprayed next time, and the printing quality is affected. In addition, the surface of the spray hole is easy to have the problem of ink hanging or ink accumulation, so that the ink interruption phenomenon is caused, the printing quality of the material is poor, and the printing material is scrapped. The prior art generally pauses printing and restarts printing after maintaining the nozzle, which affects printing efficiency.

Based on this, the embodiment of the application provides a printing method, which can identify the working state of each spray hole in the printing process of the spray head, when the working state of the spray hole is the ink-jet state, ink in the spray hole is controlled to be sprayed out of the spray hole and print a target image on a printing medium, and when the working state of the spray hole is the non-ink-jet state, the ink in the spray hole is controlled to vibrate in the spray hole but not be sprayed out of the spray hole, so that the surface of each spray hole is in a wetting state in the printing process, the phenomenon of dry or precipitation of the ink on the surface of the spray hole is effectively avoided, and the image quality of the printed target image is improved. The following description is made with reference to specific examples.

Referring to fig. 3, fig. 3 illustrates a flow of a printing method applied to an inkjet printer, for example, the inkjet printer 100 in fig. 1. As shown in fig. 3, the method comprises the steps of:

step 21: in the process of printing a target image by the spray head, determining the working state of each spray hole in the plurality of spray holes, wherein the working state is an ink-jet state or an ink-non-jet state;

in this embodiment, in the process of printing a target image by an inkjet printer, the inkjet printer may acquire initial inkjet data of the target image; and determining the working state of each spray hole in the plurality of spray holes of the spray head when printing according to the initial ink-jet data. For each jet orifice, its operating state is either an ink-jet state or a non-ink-jet state. The ink jet state is used for indicating the working state that the jet hole jets ink and prints a target image on a printing medium; the non-ejection state is used to indicate an operation state in which the nozzle does not eject ink. For example, in some embodiments, when the target image includes blank areas and colored pattern areas; when the spray hole is positioned above a blank area of a target image on the printing medium, the spray hole does not need to spray ink, and the working state of the spray hole is a non-ink-jet state; when the nozzle is located in the colored pattern area, the nozzle needs to jet ink to form a target pattern on the printing medium, and the working state of the nozzle is an ink jet state. In other embodiments, when a blank page is included in the target image, each nozzle above the blank page is in a non-ink-ejecting state.

In some embodiments, the inkjet printer may acquire initial inkjet data of the target image in real time, because the working state of the same nozzle may change during the process of printing the target image; and determining the working state of each spray hole in the plurality of spray holes of the spray head when printing each time according to the initial ink-jet data.

For example, in some embodiments, the initial inkjet data includes data representing the size of the ejected ink drops, e.g., 2'b00, 2' b01, 2'b10, and 2' b11; where 2'b00 is used to indicate that the orifice does not eject ink, and 2' b01, 2'b10, and 2' b11 are used to indicate that the orifice ejects a small dot droplet, a medium dot droplet, and a large dot droplet, respectively. When the ink jet printer obtains that initial ink jet data of the jet orifice at a printing moment comprises 2' b00, determining that the jet orifice is in a non-ink jet state at the printing moment; when the inkjet printer determines that the initial inkjet data at a printing timing includes 2' b01, 2' b10, or 2' b11, it is determined that the nozzle hole is in an inkjet state at the printing timing.

Step 22: when the plurality of spray holes comprise a first spray hole, controlling the ink jet assembly communicated with the first spray hole to execute ink jet action so as to spray ink from the first spray hole and print the target image on a printing medium;

step 23: when the plurality of spray holes comprise second spray holes, controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spray action so as to make ink vibrate in at least part of the second spray holes, wherein the vibration direction of the ink comprises the length direction of the second spray holes; the first spray hole is used for indicating at least one spray hole with the working state being the ink jet state, and the second spray hole is used for indicating at least one spray hole with the working state being the non-ink jet state.

In this embodiment, the first nozzle is used to represent at least one nozzle whose working state is an ink-jet state among a plurality of nozzles of the nozzle; the second spray hole is used for representing at least one spray hole in which the working state is a non-ink-jet state in a plurality of spray holes of the spray head. When a plurality of spray holes of the spray head comprise a first spray hole with the working state of ink spraying, the ink spraying component communicated with the first spray hole is controlled to perform ink spraying action so that ink is sprayed out of the first spray hole and a target image is printed on a printing medium. When a plurality of spray holes of the spray head comprise second spray holes with a working state of not spraying ink, the ink jet printer controls the ink jet assembly communicated with at least part of the second spray holes to execute a creeping spraying action so that the ink oscillates in at least part of the second spray holes, and meanwhile, the ink cannot be sprayed out of the second spray holes. In some embodiments, the nozzle of the inkjet printer includes a plurality of nozzles, and a nozzle corresponds to an inkjet assembly. The ink jet assembly comprises an ink cavity communicated with the jet hole and a vibrating piece arranged outside the ink cavity. The digital printer can control the vibrating piece outside the ink cavity communicated with at least part of the second spray holes to vibrate for the first change of the pressure of the ink in the ink cavity communicated with at least part of the second spray holes, so that the ink oscillates in at least part of the second spray holes. The digital printer can also control the vibrating piece outside the ink cavity communicated with the first spray hole to generate second vibration so as to enable the pressure of the ink in the ink cavity communicated with the first spray hole to generate second change, thereby enabling the ink to be sprayed out from the second spray hole and printing a target image on a printing medium; wherein the amplitude of the second vibration is greater than the amplitude of the first vibration.

Specifically, in some embodiments, the vibrating member includes a piezoelectric element and a vibrating plate, wherein the vibrating plate is adjacent to the ink chamber relative to the piezoelectric element. When the ink-jet state of a jet hole is a non-ink-jet state, the ink-jet printer can determine the ink-jet component corresponding to the jet hole, and the piezoelectric element can be controlled to vibrate by a first voltage signal acting on the piezoelectric element of the ink-jet component, so that the piezoelectric element drives the vibration plate to vibrate for the first time, and the pressure of the ink in the ink cavity is changed for the first time by the vibration of the vibration plate, so that the ink in the jet hole communicated with the jet hole oscillates in the jet hole. When the working state of an orifice is the ink-jet state, the ink-jet printer can determine the ink-jet component corresponding to the orifice, and the piezoelectric element is controlled to vibrate through a second voltage signal applied to the piezoelectric element of the ink-jet component, so that the vibration plate is driven to vibrate for the second time, the pressure of the ink in the ink cavity communicated with the orifice is changed for the second time, and the ink in the ink cavity is pushed out from the orifice and a target image is printed on a printing medium. Specifically, in the present embodiment, the amplitude of the waveform of the first voltage signal is smaller than the amplitude of the waveform of the second voltage signal.

Fig. 4 (a), 4 (b) and 4 (c) are partial cross-sectional views of a head illustrating an inkjet operation of the inkjet assembly, wherein fig. 4 (a) and 4 (c) are vermicular inkjet operations, and fig. 4 (b) is inkjet operations. As shown in fig. 4 (a), the vibration plate 201 generates first vibration, and the amplitude of the first vibration is A1; during the first vibration of the vibration plate 201, the vibration plate 201 deflects in a direction approaching the orifice 203, so that the volume of the ink chamber 202 is contracted, and the ink filled in the ink chamber 202 overflows the orifice 203 but does not drip from the orifice 203 by the first pressure generated in the ink chamber 202. As shown in fig. 4 (c), during the first vibration of the vibration plate 201, the vibration plate 201 is restored by its elastic restoring force, and the vibration plate is vibrated to a side away from the nozzle hole 203 beyond the position of the vibration plate 201 in the initial state (i.e., the position of the vibration plate 201 in fig. 2), so that the volume of the ink chamber 202 is expanded, and the liquid surface of the ink in the nozzle hole is moved from the first position in fig. 4 (a) to the second position in fig. 4 (c), wherein the second position is close to the vibration plate 201 with respect to the first position, the liquid surface of the ink in the first position is a convex liquid surface, and the liquid surface of the ink in the second position is a concave liquid surface. Therefore, when the vibration plate vibrates for the first time, the pressure of the ink in the ink cavity changes, so that the expansion and the contraction of the volume of the ink cavity are alternately performed, the ink in the spray hole oscillates back and forth in the spray hole, and the ink cannot be sprayed out of the spray hole.

As shown in fig. 4 (b), the vibration plate 201 generates a second vibration, and the amplitude of the second vibration is A2; since A2 is larger than A1, the degree of shrinkage of the ink chamber in fig. 4 (b) is larger than that in fig. 4 (a), the volume of the ink chamber in fig. 4 (b) is abruptly shrunk, and a part of the ink filled in the ink chamber is ejected as ink droplets from the ejection orifice 203 communicating with the ink chamber by the pressure generated in the ink chamber.

In the prior art, when the working state of the spray hole is a non-ink-jet state, the ink jet component does not execute a creeping spray action, namely, the piezoelectric element does not vibrate; when the nozzle is in a non-ink-jet state for a long time, the ink in the nozzle is easy to dry or precipitate, and the printing quality is affected. In the embodiment of the application, when the working state of the spray hole is a non-ink-jet state, the ink jet component still executes the creeping spray action, so that the ink in the spray hole oscillates in the spray hole but can not be sprayed out from the spray hole, the spray hole can maintain the wetting state of the spray hole surface even in the non-ink-jet state, and the phenomenon of drying or precipitation of the ink in the spray hole and the phenomenon of hanging or accumulating ink on the spray hole surface can not easily occur even if the spray hole is in the non-ink-jet state for a long time, thereby effectively improving the printing quality, reducing the maintenance of a spray head in the printing process and improving the printing efficiency.

In some embodiments, the initial ink ejection data includes first ink ejection data and second ink ejection data, wherein the first ink ejection data is for controlling the ink ejection assembly to perform the ink ejection action to cause ink to enter and eject from the orifice to print the target image on the print medium. The second ink-jet data is used for controlling the ink-jet component not to execute ink-jet action, and when the ink-jet component does not jet ink, no ink is ejected in the spray hole. The second inkjet data may be, for example, inkjet data 2' b00 in the above example. The inkjet printer may determine third inkjet data based on the second inkjet data, wherein the third inkjet data is used to control the inkjet assembly to perform a vermicular jetting action such that ink enters the orifice and ink does not jet out of the orifice. For example, in some embodiments, when the second inkjet data includes 2'b00, the inkjet printer may convert the second inkjet data to third inkjet data 3' b001 and control the corresponding inkjet assembly to perform a vermicular jetting action based on the third inkjet data and the first voltage signal; when the first ink jetting data comprises 2' b01, 2' b10 or 2' b11, the ink jet printer controls the ink jet assembly to execute the ink jetting action according to the first ink jetting data and the second voltage signal.

In some embodiments, the inkjet printer may control the inkjet assembly to perform a peristaltic inkjet action according to preset action parameters; wherein the action parameters comprise the frequency of the vermicular spraying action, the time interval between two adjacent vermicular spraying nozzles and/or the duration time of one vermicular spraying nozzle. For example, in certain embodiments of the present application, the time interval between two adjacent peristaltic spouts may be any suitable time interval, such as 0.5ms, 1ms, 1.5ms, 2ms, or the like. For example, a digital printer may perform a peristaltic spray every 1 ms. The frequency of the vermicular spraying action may be the same as the frequency of the inkjet action. The vermicular spraying action may also have any suitable frequency, for example, 200-1000 times/sec. In other embodiments, the frequency of the peristaltic spray action may also be determined based on the relative displacement of the spray head and the print medium; for example, a digital printer performs a peristaltic spray action every 2 pixels of relative movement of the spray head and the print medium. In other embodiments, the action parameters include the position interval between adjacent vermicular spraying actions, the length of the position interval of each vermicular spraying action is set according to the requirement, and the digital printer drives the inkjet assembly to perform vermicular spraying once after moving for a certain length in operation.

In some embodiments, the inkjet printer may adjust the action parameters according to the printing environment, the type of ink, and/or the printing effect of the target image. In other embodiments, the inkjet printer may acquire the temperature inside the ejection head; and if the temperature is greater than the preset temperature threshold, reducing the magnitude of the action parameter. Specifically, a temperature monitoring module is arranged in the spray head, along with the execution of the vermicular spraying action, the temperature of the spray head is increased, and when the temperature of the spray head is monitored to be increased to exceed a preset temperature threshold value due to the vermicular spraying action, the temperature in the spray head is reduced by reducing one or more action parameters of the times of the vermicular spraying action, the time interval of two adjacent vermicular spraying nozzles and the frequency of the vermicular spraying action. In other embodiments, the digital printer may further obtain a printing effect of the target pattern printed by the nozzle, and when the temperature inside the nozzle is greater than the preset temperature threshold, the digital printer may adjust the action parameter based on the printing effect, so that the printing effect of the target pattern after the action parameter is adjusted still meets the preset requirement. In this embodiment, a satisfactory printing effect can be obtained by setting appropriate action parameters, and meanwhile, the situation that the shower nozzle heats due to the fact that the driving circuit load of the shower nozzle is increased in the vermicular spraying action can be avoided, and if the shower nozzle heats too fast or too high, the shower nozzle can be damaged.

In some embodiments, when the second nozzle includes a plurality of nozzles, that is, when the number of nozzles in the plurality of nozzles of the nozzle that are in the non-ink-jet state is a plurality of nozzles, in order to avoid an excessive load on a driving circuit of the nozzle, the digital printer may further determine a proportion of nozzles in the plurality of nozzles of the second nozzle that need to perform a vermicular spraying, so that an ink jet component corresponding to a part of the nozzles in the second nozzle performs a vermicular spraying action, and an ink jet component corresponding to another part of the nozzles does not perform the vermicular spraying action, where a vibrating member of the ink jet component that does not perform the vermicular spraying action does not vibrate. Specifically, because the maximum loads of the spray head driving circuits of different types are different, the digital printer can determine the proportion of the spray holes needing to be subjected to creeping spraying in the plurality of spray holes of the second spray hole according to the type of the spray head. In some embodiments of the present application, when the maximum load of the nozzle driving circuit is sufficiently large, the inkjet components corresponding to all the nozzles in the second nozzle may perform the creeping spraying.

Embodiments of the present application also provide a computer-readable storage medium storing computer-executable instructions that are executed by one or more processors, such as the one processor 11 in fig. 1, to cause the one or more processors to perform the focusing method in any of the above-described method embodiments, such as performing the method steps 21 through 23 in fig. 2 described above.

Embodiments of the present application also provide a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a machine, cause the machine to perform the above-described focusing method. For example, the method steps 21 to 23 in fig. 2 described above are followed.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. A printing method applied to an ink-jet printer, which is characterized in that the ink-jet printer comprises a spray head, wherein the spray head comprises a plurality of ink-jet components and spray holes communicated with the ink-jet components;

the method comprises the following steps:

in the process of printing a target image by the spray head, determining the working state of each spray hole in the plurality of spray holes, wherein the working state is an ink-jet state or an ink-non-jet state;

when the plurality of spray holes comprise a first spray hole, controlling the ink jet assembly communicated with the first spray hole to execute ink jet action so as to spray ink from the first spray hole and print the target image on a printing medium;

when the plurality of spray holes comprise second spray holes, controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spray action so as to make ink vibrate in at least part of the second spray holes, wherein the vibration direction of the ink comprises the length direction of the second spray holes;

the first spray hole is used for indicating at least one spray hole with the working state being the ink jet state, and the second spray hole is used for indicating at least one spray hole with the working state being the non-ink jet state.

2. The method of claim 1, wherein the ink jet assembly includes an ink chamber and a vibrating member disposed outside the ink chamber, the vibrating member being located on a side of the ink chamber remote from the orifice, the ink chamber in communication with the orifice, the ink chamber storing ink therein;

the controlling the inkjet assembly in communication with at least some of the second orifices to perform a vermicular jetting action to oscillate ink in at least some of the second orifices includes:

controlling the vibrating piece outside the ink cavity communicated with at least part of the second spray holes to vibrate for the first change of the pressure of the ink in the ink cavity communicated with at least part of the second spray holes, so that the ink oscillates in at least part of the second spray holes.

3. The method of claim 2, wherein the controlling the inkjet assembly to perform an inkjet action to eject ink from the first orifice and print the target image on a print medium comprises:

controlling the vibrating member outside the ink chamber communicating with the first orifice to generate a second vibration so as to generate a second change in pressure to which the ink in the ink chamber communicating with the first orifice is subjected, thereby causing the ink to be ejected from the second orifice and printing the target image on the printing medium;

wherein the amplitude of the second vibration is greater than the amplitude of the first vibration.

4. The method of claim 1, wherein the determining the operating status of each of the plurality of injection orifices comprises:

acquiring initial inkjet data of the target image;

and determining the working state of each spray hole in the plurality of spray holes according to the initial ink-jet data.

5. The method of claim 4, wherein the initial inkjet data comprises first inkjet data for controlling the inkjet assembly to perform the inkjet action to print the target image and second inkjet data for controlling the inkjet assembly not to eject ink;

before the controlling the inkjet assembly in communication with at least some of the second orifices to perform a vermicular jetting event, the method further comprises:

and determining third ink jetting data based on the second ink jetting data, wherein the third ink jetting data is used for controlling the ink jetting assembly communicated with at least part of the second jet holes to execute the vermicular jetting action.

6. The method of any of claims 1-5, wherein the controlling the inkjet assembly in communication with at least a portion of the second orifices to perform a vermicular jetting action comprises:

controlling the ink jet assembly communicated with at least part of the second spray holes to execute a vermicular spray action according to preset action parameters;

the action parameters comprise the frequency of the vermicular spraying action and/or the time interval between two adjacent vermicular spraying actions.

7. The method of claim 6, wherein the method further comprises:

and adjusting the action parameters according to the printing environment, the type of ink and/or the printing effect of the target image.

8. The method of claim 6, wherein the method further comprises:

acquiring the temperature inside the spray head;

and if the temperature is greater than a preset temperature threshold, reducing the magnitude of the action parameter.

9. The method of any one of claims 1-5, wherein the frequency of the inkjet events is the same as the frequency of the vermicular inkjet events.

10. An inkjet printer, the inkjet printer comprising: a processor, and a memory storing instructions that, when executed by the processor, cause the inkjet printer to perform the method of any one of claims 1 to 9.

Images