CN116674303A - Suction power control method, device, equipment and medium based on printing data - Google Patents

Abstract

The invention belongs to the technical field of industrial printing, solves the problem in the prior art that the suction platform cannot automatically adjust the suction power according to the printing data during multi-pass printing and affects the printing effect, and provides a method for controlling the suction power based on the printing data , devices, equipment and media. The method includes: acquiring print data corresponding to the image to be printed; determining the ink volume per PASS according to the print data; and setting the suction power corresponding to each PASS according to the ink volume per PASS. The present invention avoids the problem that each PASS has the same air suction power, which causes the ink permeability rate and ink dots printed first to be large, and the ink permeability rate and ink dots printed later are small, and the printing is uneven, so that the ink permeability and ink dots of each PASS The ink dots are kept the same as much as possible, so that the printed image is good and the color is uniform.

Description

Suction power control method, device, equipment and medium based on printing data

technical field

The invention relates to the field of industrial printing, in particular to a method, device, equipment and medium for controlling suction power based on printing data.

Background technique

Reciprocating scanning printing technology is a commonly used technology in the field of inkjet printing at present. Reciprocating scanning printing is also called multi-pass scanning printing. Multi-pass scanning printing means that each unit of the image to be printed must be interpolated multiple times before printing can be completed. , each unit is composed of multiple pixels, such as 2PASS scanning and printing, each unit is composed of 2 pixels, 3PASS scanning and printing, each unit is composed of 3 pixels, the principle is that the printing carriage moves left and right, so that The print head scans and prints line by line, and then stitches the image through the material to print the image.

Most of the existing inkjet printers will install a suction platform to generate negative pressure to absorb the material and fix the material to improve the printing effect. At the same time, it can also prevent the material from protruding and scratching the nozzle when the trolley is moving. However, the current Some suction platforms use the same uniform suction power. When printing with multiple passes, the ink volume and coverage times of different passes are different, resulting in different ink leveling and penetration. If the same suction is used The wind power will cause the printing effect of the beginning PASS and the last PASS to be different, which will affect the final printing effect.

Contents of the invention

In view of this, the embodiment of the present invention provides a suction power control method, device, device, and medium based on printing data to solve the problem that the suction platform in the prior art cannot automatically adjust the suction power according to the printing data during multi-pass printing. , A problem that affects the printing effect.

In the first aspect, an embodiment of the present invention provides a method for controlling suction power based on print data, wherein the method includes:

Obtain the print data corresponding to the image to be printed;

According to the printing data, determine the amount of printing ink per PASS;

According to the printing ink volume per PASS, set the suction power corresponding to each PASS.

Preferably, before determining the amount of printing ink per PASS according to the printing data, the method further includes:

Obtain the length of the nozzle and the number of print passes;

The width of the printing area is calculated by the formula Wp=L/N, where Wp is the width of the printing area, L is the length of the nozzle, and N is the number of printing passes.

Preferably, according to the printing data, determining the amount of printing ink per PASS includes:

Splitting the print data according to the width of the print area to obtain the print data of each print area, which is denoted as area print data;

Splitting the print data of the area by the print template to obtain the print data of each PASS in each print area, which is recorded as PASS print data;

According to the PASS printing data, the printing ink volume per PASS of each printing area is calculated.

Preferably, when the current printing only includes one kind of ink drop, the calculation of the printing ink volume per PASS according to the PASS printing data includes:

Obtain the volume of the ink drop;

Obtain the number of ink drops per PASS according to the printing data of each PASS;

The amount of printing ink per PASS is calculated according to the number of ink drops per PASS and the volume of the ink drops.

Preferably, when the current printing includes two or more ink droplets, the calculation of the printing ink volume per PASS according to the PASS printing data includes:

Obtain the volume of each ink drop separately;

Count the quantity of each ink drop according to the PASS printing data;

According to the volume of each kind and the quantity of each kind of ink droplets, the amount of printing ink per PASS is calculated.

Preferably, when the printing ink volume per PASS is the same, setting the suction power corresponding to each PASS according to the printing ink volume per PASS includes:

Record the number of printing passes as n, where n is an integer greater than or equal to 2. When printing the first pass, set the suction power as P1;

When performing the second PASS printing, set the suction power to P2;

By analogy, when performing the NPASS printing, set the suction power to PN;

Wherein, P1<P2<...<PN.

Preferably, when the printing ink volume per PASS is different, setting the suction power corresponding to each PASS according to the printing ink volume per PASS includes:

Obtain the initial suction power of each PASS according to the printing ink volume of each PASS;

Obtain the suction coefficient according to the number of printed PASS;

According to the air suction coefficient and the initial air suction power per PASS, the air suction power is set when printing per PASS.

In the second aspect, an embodiment of the present invention provides a device for controlling suction power based on print data, wherein the device includes:

A data acquisition module, configured to acquire print data corresponding to the image to be printed;

An ink volume determination module, configured to determine the ink volume per PASS according to the print data;

The air suction power setting module is used to set the air suction power corresponding to each PASS according to the ink volume per PASS.

In a third aspect, an embodiment of the present invention provides a printing data-based suction power control device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, when the computer program instructions are executed by the processor At this time, the method of the first aspect in the above-mentioned embodiment is implemented.

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

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

According to the printing data-based suction power control method, device and equipment provided by the embodiments of the present invention, the suction power of each PASS is set according to the printing data of each PASS, so that the suction power of each PASS is different, thereby avoiding the air suction power of each PASS. If the power is the same, the first printed ink has a large penetration rate and large ink dots, and the second printed ink has a small penetration rate, small ink dots, and uneven printing. The suction power of the PASS keeps the ink penetration rate and ink dots of each PASS the same as much as possible, so that the printed image has good effect and uniform color.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present invention. Other drawings can be obtained according to these drawings, and these are all within the protection scope of the present invention.

Figure 1 is a schematic diagram of 3PASS printing in the embodiment of the present invention.

2 is a schematic flowchart of a method for controlling suction power based on printing data in an embodiment of the present invention;

3 is a schematic flowchart of a method for controlling suction power based on printing data in an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a device for controlling suction power based on printing data in an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a device for controlling suction power based on printing data according to an embodiment of the present invention.

Detailed ways

The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising..." does not exclude the presence of additional same elements in the process, method, article or device comprising said element.

Example 1

Referring to Fig. 1, it is the 3PASS printing method, and each printing area is completed by 3 printing coverages. For example, in this embodiment, the first printing coverage of the printing area 1 is completed by the nozzle 1, and the second printing coverage is completed by the nozzle 2. The three printing coverages are completed by the nozzle 3, and then the nozzle leaves the area 1 to continue the printing coverage of other areas; at the same time, it can be seen from the coverage process that the printing area 1 is covered layer by layer, so it is necessary to adjust the area after each layer of coverage is completed Suction power to ensure the same coverage every time.

Please refer to Fig. 2, an embodiment of the present invention provides a method for controlling suction power based on print data, wherein the method includes:

S1: Obtain the print data corresponding to the image to be printed;

S2: Determine the amount of printing ink per PASS according to the printing data;

S3: Set the suction power corresponding to each PASS according to the ink volume per PASS.

Specifically, first obtain the print data corresponding to the image to be printed, the print data is the original image dot matrix data, in one embodiment, the print data obtains the original image dot matrix data by scanning the image to be printed, specifically including : Carry out network dot segmentation, divide the original image into multiple small area images; for any small area image in each small area image, according to the form of the small area image, such as grayscale, pixel, etc., generate the original image bitmap data The point data corresponding to the small area image; the point data corresponding to the small area image in the original image bit matrix data, the position order in the original image bit matrix data is the same as that of the small area image in the original image The order of positions in each small area image formed by segmentation is the same; after obtaining the print data corresponding to the image to be printed, the amount of printing ink per pass can be determined according to the print data, and finally according to the amount of printing ink per pass, set the suction Power, by setting the suction power of each PASS according to the printing data of each PASS, so that the suction power of each PASS is different, thus avoiding the same suction power of each PASS, which will lead to large ink penetration rate and large ink dots printed first, and then printed The ink penetration rate is small, the ink dot is small, and the printing is uneven. According to the printing data, the ink volume of each PASS is determined, and the suction power of each PASS is determined according to the ink volume, so that the ink penetration rate and ink dots of each PASS are kept as much as possible. The same, which in turn makes the printed image better and more uniform in color.

In one embodiment, before the step S2, the method further includes:

S11: Obtain the length of the nozzle and the number of print passes;

S12: Calculate the width of the printing area by the formula Wp=L/N, where Wp is the width of the printing area, L is the length of the nozzle, and N is the number of printing passes.

Specifically, first obtain the length of the nozzle and the number of print passes. When the printing system has only one nozzle, the length of the nozzle is the length of one nozzle. When the printing system includes multiple splicing nozzles, the length of the nozzle is the length of multiple nozzles. , the number of print passes means that each unit of the image to be printed needs to be interpolated multiple times before printing can be completed. Each unit is composed of multiple pixels. When the number of print passes is 2, each unit consists of 2 pixels Composed of dots, when the number of print passes is 3, each unit is composed of 3 pixels. After obtaining the length of the nozzle and the number of print passes, calculate the width of the print area according to the formula: print area width = print head length/print pass number .

In one embodiment, referring to FIG. 3, the step S2 includes:

S21: Split the print data according to the width of the print area to obtain the print data of each print area, which is recorded as area print data;

S22: splitting the print data of the area through the print template to obtain the print data of each PASS in each print area, which is recorded as the PASS print data;

S23: According to the PASS printing data, calculate the printing ink volume per PASS of each printing area.

Specifically, split the print data according to the width of the print area to obtain the complete print data of each print area, record it as the area print data, and then split the area print data of each print area according to the number of print passes The print data per PASS of each area is obtained, wherein the complete print data of each print area is split into print data of each PASS by using a print template.

In one embodiment, when this printing only includes one kind of ink drop, step S23 includes:

S231: Obtain the volume of the ink droplet;

S232: Obtain the number of ink drops per PASS according to the printing data of each PASS;

S233: Calculate the amount of printing ink per PASS according to the number of ink drops per PASS and the volume of the ink drops.

In another embodiment, when this printing includes two or more ink droplets, the described step S23 includes:

S234: Obtain the volume of each ink droplet respectively;

S235: Count the quantity of each ink drop according to the PASS printing data;

S236: Calculate the amount of printing ink per PASS according to the volume of each type and the number of ink droplets of each type.

Specifically, the existing inkjet printers can print ink droplets of different volumes, and the ink droplets included in this printing can be judged through the acquired printing data (ie, the original image dot matrix data). For example, without limitation, when printing When the data only includes ink output data (indicated by 1) and non-ink output data (indicated by 0), it can be judged that this printing only includes one kind of ink droplet, and then the ink output data in each PASS printing data is statistically The quantity of the ink drops of each PASS is obtained, and finally the ink volume of each PASS is calculated according to the ink drops of each PASS and the volume of the ink drops; when the print data includes the first ink point ink output data (in 01), the second type of ink droplet output data (indicated by 10), the third type of ink droplet output data (indicated by 11) and non-ink output data (indicated by 00), it can be judged that this printing includes three types Ink drop, wherein, the volume of the first ink drop is smaller than the volume of the second ink drop, and the volume of the second ink drop is smaller than the volume of the third ink drop. At this time, the volume of each ink drop is obtained first, and then According to the PASS printing data, the quantity of each type of ink drop is then counted, so as to calculate the amount of printing ink per PASS according to the volume of each type and the quantity of each type of ink drop.

Preferably, when the amount of printing ink per PASS is the same, the step S3 specifically includes:

Record the number of printing passes as n, where n is an integer greater than or equal to 2. When printing the first pass, set the suction power as P1;

When performing the second PASS printing, set the suction power to P2;

By analogy, when performing the NPASS printing, set the suction power to PN;

Wherein, P1<P2<...<PN.

Preferably, when the printing ink volume per PASS is different, setting the suction power corresponding to each PASS according to the printing ink volume per PASS includes:

Obtain the initial suction power of each PASS according to the printing ink volume of each PASS;

Obtain the suction coefficient according to the number of printed PASS;

According to the air suction coefficient and the initial air suction power per PASS, the air suction power is set when printing per PASS.

Specifically, when the amount of printing ink per pass is the same, record the number of printing passes as n, where n is an integer greater than or equal to 2, and when printing the first pass, set the suction power as P1 , when performing the second PASS printing, set the suction power to P2, and so on, when performing the NPASS printing, set the suction power to PN, wherein, P1<P2<...<PN; In a specific embodiment, please refer to Fig. 1, in the printing area 1, the printing ink volume of the 1st PASS nozzle 1 is A, the printing ink volume of the 2nd PASS nozzle 2 in the printing area 1 is B, and the printing ink of the 3rd PASS nozzle 3 in the printing area 1 The volume is C, when A=B=C, the suction power of the first pass to the third pass is P1 to P3, where P1<P2<P3, when printing the first pass in the printing area 1, set the suction power The wind power is P1. When printing the second pass, set the suction power to P2. When printing the third pass, set the suction power to P3, where P1<P2<P3; when the When the printing ink volume is different, different printing ink volumes correspond to different initial suction powers, and different printing PASS numbers correspond to different suction coefficients. According to the suction coefficient and the initial suction power per PASS, Set the suction power when printing each PASS.

The printing data-based suction power control method provided by the embodiment of the present invention obtains the printing data corresponding to the image to be printed, and determines the printing ink volume per PASS according to the printing data, and according to the printing ink volume per PASS, Set the suction power corresponding to each pass, so that the suction power of each pass is different, thus avoiding the same suction power of each pass, resulting in large ink penetration rate and large ink dots printed first, and small ink penetration rate and ink dots printed later. Small, uneven printing and other problems, according to the print data to determine the amount of printing ink per PASS, according to the amount of ink to determine the suction power of each PASS, so that the ink penetration rate and ink dots of each PASS should be kept the same as much as possible, so as to make the printed image effect Good and even color.

Example 2

Please refer to Fig. 4, an embodiment of the present invention provides a suction power control device based on print data, characterized in that the device includes:

A data acquisition module, configured to acquire print data corresponding to the image to be printed;

An ink volume determination module, configured to determine the ink volume per PASS according to the print data;

The air suction power setting module is used to set the air suction power corresponding to each PASS according to the ink volume per PASS.

In one embodiment, the device also includes:

The printing area width calculation module is used to obtain the length of the nozzle and the number of printing PASS, and calculate the printing area width by the formula Wp=L/N, where Wp is the width of the printing area, L is the length of the nozzle, and N is the printing PASS number.

In one embodiment, the ink quantity determination module includes:

An area print data acquisition unit, configured to split the print data according to the width of the print area to obtain print data for each print area, which is recorded as area print data;

A PASS print data acquisition unit, configured to split the area print data through a print template to obtain the print data of each PASS in each print area, which is denoted as PASS print data;

The printing ink volume acquisition unit is used to calculate the printing ink volume per PASS of each printing area according to the PASS printing data.

In one embodiment, when the current printing only includes one kind of ink droplet, the printing ink volume acquisition unit includes:

A first ink drop volume acquisition subunit, configured to acquire the volume of the ink drop;

The first ink drop quantity counting subunit is used to obtain the ink drop quantity per PASS according to the printing data of each PASS;

The printing ink volume calculation subunit calculates the printing ink volume per PASS according to the number of ink drops per PASS and the volume of the ink drops.

In another embodiment, when the current printing includes two or more ink droplets, the printing ink volume acquisition unit includes:

The second ink drop volume acquisition subunit is used to acquire the volume of each ink drop respectively;

The second ink drop counting subunit is used to count the number of each ink drop according to the PASS printing data;

The printing ink volume statistics subunit is used to calculate the printing ink volume per PASS according to the volume of each type of ink and the number of ink drops of each type.

Preferably, when the printing ink volume per PASS is the same, setting the suction power corresponding to each PASS according to the printing ink volume per PASS includes:

Record the number of printing passes as n, where n is an integer greater than or equal to 2. When printing the first pass, set the suction power as P1;

When performing the second PASS printing, set the suction power to P2;

By analogy, when performing the NPASS printing, set the suction power to PN;

Wherein, P1<P2<...<PN.

Preferably, when the printing ink volume per PASS is different, setting the suction power corresponding to each PASS according to the printing ink volume per PASS includes:

Obtain the initial suction power of each PASS according to the printing ink volume of each PASS;

Obtain the suction coefficient according to the number of printed PASS;

According to the air suction coefficient and the initial air suction power per PASS, the air suction power is set when printing per PASS.

The printing data-based suction power control device provided by the embodiment of the present invention obtains the printing data corresponding to the image to be printed, and determines the printing ink volume per PASS according to the printing data, and according to the printing ink volume per PASS, Set the suction power corresponding to each pass, so that the suction power of each pass is different, thus avoiding the same suction power of each pass, resulting in large ink penetration rate and large ink dots printed first, and small ink penetration rate and ink dots printed later. Small, uneven printing and other problems, according to the print data to determine the amount of printing ink per PASS, according to the amount of ink to determine the suction power of each PASS, so that the ink penetration rate and ink dots of each PASS should be kept the same as much as possible, so as to make the printed image effect Good and even color.

Example 3

The embodiment of the present invention discloses a suction power control device based on printing data, as shown in FIG. 5 , which includes at least one processor, at least one memory, and computer program instructions stored in the memory.

Specifically, the foregoing processor may include a central processing unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits in the embodiments of the present invention.

Memory may include removable or non-removable (or fixed) media, where appropriate, and memory may include mass storage for data or instructions. By way of example and not limitation, memory may include a Hard Disk Drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or general purpose media. The memory may be internal or external to the data processing device, where appropriate. In a particular embodiment, the memory is non-volatile solid-state memory. In particular embodiments, the memory includes read only memory (ROM). Where appropriate, the ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or A combination of two or more of the above.

The processor reads and executes the computer program instructions stored in the memory to implement any one of the printing data-based suction power control method in the first embodiment above.

In one example, the printing data-based suction power control device may further include a communication interface and a bus. Wherein, as shown in FIG. 5 , the processor, the memory, and the communication interface are connected through a bus and complete mutual communication.

The communication interface is mainly used to realize the communication between various modules, devices, units and/or devices in the embodiments of the present invention.

The bus includes hardware, software or both, and couples the components of the suction power control device based on printing data to each other. By way of example and not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport (HT) interconnect, Industry Standard Architecture (ISA) Bus, Infiniband Interconnect, Low Pin Count (LPC) Bus, Memory Bus, Micro Channel Architecture (MCA) Bus, Peripheral Component Interconnect (PCI) Bus, PCI-Express (PCI-X) Bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or a combination of two or more of these. A bus may comprise one or more buses, where appropriate. Although embodiments of the invention describe and illustrate a particular bus, the invention contemplates any suitable bus or interconnect.

Example 4

In addition, in combination with the printing data-based suction power control method in Embodiment 1 above, the embodiment of the present invention may provide a computer-readable storage medium for implementation. Computer program instructions are stored on the computer-readable storage medium; when the computer program instructions are executed by a processor, any method for controlling suction power based on print data in the above-mentioned embodiments is implemented.

To sum up, the printing data-based suction power control method, device, device, and medium provided by the embodiments of the present invention determine the amount of printing ink per PASS by obtaining the printing data corresponding to the image to be printed and according to the printing data , according to the amount of printing ink per pass, set the suction power corresponding to each pass, so that the suction power of each pass is different, thereby avoiding the same suction power of each pass, which will cause the first printed ink to have a large penetration rate and large ink dots , After printing, the ink penetration rate is small, the ink dot is small, and the printing is uneven. According to the printing data, the printing ink volume of each PASS is determined, and the suction power of each PASS is determined according to the ink volume, so that the ink penetration rate and ink per PASS The dots should be kept the same as much as possible, so that the printed image is good and the color is uniform.

It is to be understood that the invention is not limited to the specific arrangements and processes described above and shown in the drawings. For conciseness, 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, and those skilled in the art can make various changes, modifications and additions, or change the sequence of steps after understanding the spirit of the present invention.

The functional blocks shown in the structural block diagrams described above may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the invention are the programs or code segments employed to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted over transmission media or communication links by data signals carried in carrier waves. "Machine-readable medium" may include any medium that can store or transmit 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, and the like. Code segments may be downloaded via a computer network such as the Internet, an Intranet, or the like.

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

The above is only a specific implementation of the present invention, and those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described system, modules and units can refer to the foregoing method embodiments The corresponding process in , 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 think of various equivalent modifications or replacements within the technical scope disclosed in the present invention, and these modifications or replacements should cover all Within the protection scope of the present invention.

Claims (10)

1. A method for controlling suction power based on print data, the method comprising:

acquiring printing data corresponding to an image to be printed;

determining the printing ink quantity of each PASS according to the printing data;

and setting the air suction power corresponding to each PASS according to the printing ink quantity of each PASS.

2. The print data based induced draft power control method according to claim 1, wherein before said determining the amount of printing ink per PASS from said print data, said method further comprises:

acquiring the length of a spray head and the number of printing PASS;

calculating the width of a printing area through a formula wp=l/N, wherein Wp is the width of the printing area, L is the length of a nozzle, and N is the number of printing PASS.

3. The method of claim 2, wherein determining the amount of printing ink per PASS based on the print data comprises:

splitting the printing data according to the width of the printing area to obtain the printing data of each printing area, and recording the printing data as area printing data;

splitting the region print data through a print template to obtain print data of each PASS of each print region, and marking the print data as PASS print data;

and calculating the printing ink quantity of each PASS of each printing area according to the PASS printing data.

4. The method of claim 3, wherein when the current printing includes only one ink droplet, calculating the amount of ink printed per PASS for each print area according to the PASS print data comprises:

acquiring the volume of the ink drop;

acquiring the number of ink drops of each PASS according to the print data of each PASS;

and calculating the printing ink quantity per PASS according to the ink drop quantity per PASS and the volume of the ink drop.

5. The method of claim 3, wherein when the current printing includes two or more ink droplets, calculating the amount of ink printed per PASS for each print area according to the PASS print data comprises:

respectively acquiring the volume of each ink drop;

counting the number of each ink drop according to the PASS printing data;

and calculating the printing ink quantity of each PASS according to the volume of each ink drop and the quantity of each ink drop.

6. The method for controlling suction power based on print data according to any one of claims 1 to 5, wherein when the amount of print ink per PASS is the same, the setting the suction power corresponding to each PASS according to the amount of print ink per PASS includes:

recording the number of the printing PASS as n, wherein n is an integer greater than or equal to 2, and setting the suction power as P1 when printing the first PASS;

setting the suction power as P2 when the second PASS printing is performed;

similarly, when the Nth PASS printing is performed, setting the suction power as PN;

wherein P1 is more than P2 and more than … … is more than PN.

7. The method of claim 1, wherein when the amounts of printing ink per PASS are different, the setting the suction power corresponding to each PASS according to the amounts of printing ink per PASS comprises:

acquiring initial air suction power of each PASS according to the printing ink quantity of each PASS;

acquiring an induced draft coefficient according to the number of the printing PASS;

and setting the suction power when printing each PASS according to the suction coefficient and the initial suction power of each PASS.

8. An induced draft power control apparatus based on print data, the apparatus comprising:

the data acquisition module is used for acquiring printing data corresponding to the image to be printed;

an ink amount determining module for determining a printing ink amount per PASS according to the printing data;

and the induced draft power setting module is used for setting induced draft power corresponding to each PASS according to the printing ink quantity of each PASS.

9. An induced draft power control apparatus based on print data, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of any one of claims 1-7.

10. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1-7.