CN119348303A

CN119348303A - Printer, marking machine and control method thereof

Info

Publication number: CN119348303A
Application number: CN202411932067.9A
Authority: CN
Inventors: 郝昱; 古志超; 薛原; 王伟民; 胡江海
Original assignee: China Electronics Great Wall Changsha Information Technology Co ltd; Great Wall Information Co Ltd
Current assignee: China Electronics Great Wall Changsha Information Technology Co ltd; Great Wall Information Co Ltd
Priority date: 2024-12-26
Filing date: 2024-12-26
Publication date: 2025-01-24
Anticipated expiration: 2044-12-26
Also published as: CN119348303B

Abstract

The application relates to the technical field of laser imaging, and provides a printer, a marking machine and a control method thereof, wherein an irradiation source array formed by a light emitting diode array or a plurality of laser heads is used for selectively providing irradiation to a printing material or a transfer printing material. The method comprises controlling m light sources to work together, wherein m is a positive integer greater than or equal to 2, irradiating according to data to be printed, wherein the distance between projection points or projection lines of two adjacent light sources in the m light sources on the printing medium is a first distance, setting the speed of conveying the printing medium to be such that the distance of the printing medium moving in a period of one row of light irradiation is a first distanceThe printing of the data to be printed is achieved based on the speed of transporting the print medium and m light sources. The method of the application can provide higher printing resolution and can improve the speed of high-resolution printing.

Description

Printer, marking machine and control method thereof

Technical Field

The application relates to the technical field of laser imaging, in particular to a printer, a marking machine and a control method thereof.

Background

With the development of technology, office automation equipment is becoming more and more popular, and laser printers are becoming indispensable equipment in offices and homes at a stable, durable, and high speed. In a common usage scenario, 600 Dots Per Inch (DPI, dots Per Inch) resolution output is the dominant. However, in some specialized fields, such as high-definition image printing, fine drawing output, etc., the requirement for printing resolution often requires achieving a resolution of not less than 1200 DPI. Also, laser marking machines used in industrial applications have a need for high resolution.

DPI is a unit of measure for digital images of a dot matrix, which refers to the number of sampled, displayable, or output points per inch of length. DPI is a measure of the resolution of a device such as a printer, a labeler, a mouse, etc. Is one of the main parameters for measuring the printing precision of the printer, and in general, the higher the DPI value is, the higher the printing precision of the printer is. The lower the DPI, the lower the print definition, and the pictures used on the network are all 72DPI, due to the network transport speed, but the photos cannot be developed using this parameter, which must be 300DPI or higher, 350DPI. For example, to washIn-inch photographs, the scan accuracy must be 300DPI, then the file size should be。

At present, a high-speed laser printer (usually more than 30 pages per minute) on the market generally uses a set of double laser head schemes with a structural interval of 42.3 micrometers to realize the printing resolution of 600DPI in the longitudinal direction, and the working principle is that one laser head outputs data of 1 st, 3 rd, 5 th and 7 th. While this has been satisfactory for high-speed output printing, in certain specialized fields, such as high definition image printing, fine drawing output, etc., the requirement for printing resolution often requires resolution of not less than 1200DPI, whereas in the case of using dual laser heads, since the longitudinal distance between the two laser heads is structurally defined (42.3 microns) to be invariable, it is not possible to achieve higher resolution printing in the longitudinal direction. If a printing resolution of 1200DPI (line spacing of 21.2 micrometers) or higher is to be achieved, this can only be achieved by using one laser head to output data and the other laser head to be turned off, which can lead to a significant reduction in output speed to one quarter of 600DPI (doubling the number of pixel lines printed per page at 1200DPI, plus changing the output of a single laser head to cause the printing time per page to be four times 600 DPI).

Disclosure of Invention

The application provides a printer, a marking machine and a control method thereof, wherein the printer uses an illumination source array formed by a light emitting diode array or a plurality of laser heads to selectively provide illumination for a printing material or a transfer material, can realize higher printing resolution, and can improve the printing speed under high printing resolution.

In a first aspect, an embodiment of the present application provides a print control method for a printer, the printer including a plurality of light sources, the light sources being laser light sources or linear light sources, the print control method including:

Controlling m light sources in the plurality of light sources to work together, wherein m is a positive integer greater than or equal to 2, irradiating according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

The speed of transporting the printing medium is set such that the distance the printing medium moves in the period of one line of light irradiation is a first distance And printing the data to be printed based on the speed of transmitting the printing medium and m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

Alternatively, m is set to 3 and n is set to 1, or m is set to 2 and n is set to 2, and the speed of transporting the printing medium is controlled according to the parameters m and n.

Optionally, the printing control method further comprises setting an m value and an n value according to the resolution selected by the user, thereby controlling the speed of conveying the printing medium;

Wherein in case the first distance is 42.3 micrometers, when the user-selected resolution is 2400DPI, the m value and the n value are set to m=3 and n=1, when the user-selected resolution is 1800DPI, the m value and the n value are set to m=2 and n=1, and when the user-selected resolution is 3000DPI, the m value and the n value are set to m=2 and n=2.

Optionally, (m-1) (2n+m-2) blank data lines are complemented above the first line of the data to be printed, and/or (m-1) (2n+m-2) blank data lines are complemented below the last line of the data to be printed.

Optionally, the blank data line is printed outside the effective printing area according to the margin selected by the user.

Optionally, the first (m-1) (2n+m-2) data line of the data to be printed is printed, the most downstream light source of the m light sources is controlled to start data output first, the last (m-1) (2n+m-2) data line of the data to be printed is printed, the most upstream light source of the m light sources is controlled to finish data output last, and the data lines of the first (m-1) (2n+m-2) data line and the last (m-1) (2n+m-2) data line of the data to be printed are printed according to a preset time sequence.

Optionally, the printer comprises redundant one or more light sources in addition to the m light sources working together, wherein the redundant one or more light sources are controlled to be non-working, the linear light source is an LED array, and the laser source is an irradiation source array formed by a plurality of laser heads.

Optionally, the data to be printed is divided into first area data, second area data and mth area data, and the first area data to the mth area data are respectively allocated to the first light source to the mth light source in the m light sources for printing, and each of the first area data to the mth area data comprises a plurality of rows of data.

Optionally, (m-1) (2n+m-2)/m blank data lines are complemented above the first line of the first region data as new first region data, and/or (m-1) (2n+m-2)/m blank data lines are complemented below the last line of the m-th region data as new m-th region data.

Optionally, (m-1) (2n+m-2)/m- (x-1) blank data lines are added above the first line of the x-th region data (1 < x < m, x is a positive integer) and/or (x-1) blank lines are added below the last line, so that the new x-th region data is changed.

In a second aspect, an embodiment of the present application provides a printer, including a plurality of light sources and a control device, where the light sources are laser sources or linear light sources, m light sources in the plurality of light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be printed, and a distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

The control device is configured to:

setting the speed of the printer for conveying the printing medium to a first distance in a period of one line of light irradiation And printing the data to be printed based on the speed of transmitting the printing medium and m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

Alternatively, m is configured to 3 and n is configured to 1, or m is configured to 2 and n is configured to 2, the control device controls the speed at which the printer transfers the printing medium according to the parameters m and n.

Optionally, the m value and the n value are configured according to a resolution selected by a user, thereby controlling a speed of transporting the printing medium.

Optionally, two adjacent light sources of the m light sources are arranged such that the first distance is equal to 42.3 micrometers;

When the user-selected resolution is 2400DPI, the m value and the n value are set to m=3 and n=1, when the user-selected resolution is 1800DPI, the m value and the n value are set to m=2 and n=1, and when the user-selected resolution is 3000DPI, the m value and the n value are set to m=2 and n=2.

Optionally, the control means is further configured to control the speed at which the printer delivers the print medium by adjusting the rotational speed of the printer drive motor.

Optionally, the control means is further configured to complement (m-1) (2n+m-2) blank data lines above the first line of data to be printed and/or (m-1) (2n+m-2) blank data lines below the last line of data to be printed.

Optionally, the control means is further configured to print the blank data line outside the effective print area in accordance with a margin selected by the user.

Optionally, the control device is further configured to control the downstream-most light source of the m light sources to start data output first when printing the first (m-1) (2n+m-2) data line of the data to be printed, control the upstream-most light source of the m light sources to finish data output last when printing the last (m-1) (2n+m-2) data line of the data to be printed according to a preset time sequence.

Optionally, the printer includes a plurality of light sources, m light sources, excluding redundant light sources, or

The printer includes, in addition to the above-described m light sources that work together, one or more light sources that are redundant, the redundant light source or light sources being controlled to be inactive;

the linear light source is a light emitting diode array, and the laser source is an irradiation source array formed by a plurality of laser heads.

Optionally, the control device is further configured to:

Dividing data to be printed into first area data, second area data and mth area data, respectively distributing the first area data to the mth area data to first light sources to mth light sources in m light sources for printing, wherein the first area data to the mth area data comprise multiple rows of data.

Optionally, the control means is further configured to complement (m-1) (2n+m-2)/m blank data lines above the first line of the first area data as new first area data and/or (m-1) (2n+m-2)/m blank data lines below the last line of the m-th area data as new m-th area data.

In a third aspect, an embodiment of the present application provides a print control method for a printer, the printer including a plurality of light sources, the light sources being laser sources or line light sources, the print control method including:

controlling m light sources in the light sources to work together, wherein m is a positive integer greater than or equal to 2, irradiating according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

Setting the speed of transporting the printing medium according to the resolution selected by the user so that the distance the printing medium moves in the period of one line of light irradiation is 2 times the first distance or the first distance And printing the data to be printed based on the speed of the transmission printing medium and the m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

In a fourth aspect, an embodiment of the present application provides a printer, where the printer includes a plurality of light sources and a control device, the light sources are laser sources or linear light sources, m light sources in the plurality of light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be printed, and a distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

Setting the speed of the printer to transport the printing medium according to the resolution selected by the user so that the distance the printing medium moves in the period of one line of light irradiation is 2 times the first distance or the first distance And printing the data to be printed based on the speed of the transmission printing medium and the m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

In a fifth aspect, an embodiment of the present application provides a marking control method for a marking machine, where the marking machine includes a plurality of laser light sources, and the marking machine performs any one of the above-described printing control methods.

In a sixth aspect, an embodiment of the present application provides a marking machine, where the marking machine includes a plurality of laser light sources and a control device, m light sources in the plurality of laser light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be marked, and a distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

The speed of the printer for conveying the printing medium is set to be a first distance when the printing medium moves in a period of one line of light irradiation And printing the data to be marked based on the speed of the transmission printing medium and the m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

Optionally, the control means is further configured to complement (m-1) (2n+m-2) blank data lines above the first line of the data to be marked and/or (m-1) (2n+m-2) blank data lines below the last line of the data to be marked.

In a seventh aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program which, when executed by a processor, implements any of the control methods described above.

The scheme of the application has the following beneficial effects:

In an embodiment of the present application, a printer controls a pitch between projection points or projection lines of adjacent two light sources of m light sources operating together on a printing medium to be a first distance, and controls a transport speed of the printing medium such that a distance by which the printing medium moves in a period in which light is irradiated by one line is a first distance The multiple is obtained by using a positive integer of 2 or more as m and a positive integer as nGreater thanI.e. when there are a plurality of light sources working together, the distance between two lines of data printed before and after movement of the print medium is smaller than the first distance, i.e. the print resolution is increased when the first distance is moved relative to the print medium, for any one of the light sources working together. In addition, the number of the light sources working together is not less than 2, so that the application can realize the printing of the ultra-high resolution image and ensure the high-speed printing output. 2n+m-1 is not an integer multiple of m, and overlapping irradiation of data lines by multiple light sources can be avoided. The scheme of the application can print with the basic resolution of 600DPI or higher resolution without changing the original light source structure, and has good compatibility.

Other advantageous effects of the present application will be described in detail in the detailed description section which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Figure 1 is a schematic diagram of a conventional dual light source implementation 600 DPI;

figure 2 is a schematic diagram of a wrong implementation of a 1200DPI using dual light sources;

figure 3 is a schematic diagram of a conventional 1200DPI implementation using one of the dual light sources;

fig. 4 is a flowchart of a print control method for a printer according to an embodiment of the present application;

Figure 5 is a schematic diagram of a dual light source implementation 1800DPI according to an embodiment of the application;

figure 6 is a schematic diagram of a dual light source implementation 3000DPI according to an embodiment of the present application;

figure 7 is a schematic diagram of a three light source implementation 2400DPI according to an embodiment of the application;

FIG. 8 is a schematic diagram of several lines of data prior to printing in a dual light source implementation 1800DPI in accordance with another embodiment of the application;

fig. 9 is a schematic diagram of several lines of data after printing in a dual light source implementation 1800DPI according to another embodiment of the application;

FIG. 10 is a schematic diagram of several lines of data prior to printing in a 3000DPI dual light source implementation according to another embodiment of the present application;

FIG. 11 is a schematic diagram of several lines of data after printing in a 3000DPI dual light source implementation according to another embodiment of the present application;

FIG. 12 is a schematic diagram of several lines of data prior to printing in 2400DPI with a three light source implementation in accordance with another embodiment of the application;

FIG. 13 is a schematic diagram of several lines of data printed in 2400DPI with a three light source implementation in accordance with another embodiment of the application;

FIG. 14 is a schematic diagram of a printer according to an embodiment of the application;

FIG. 15 is a schematic diagram of data line transfer according to an embodiment of the application;

Fig. 16 is a schematic diagram of a marking machine according to another embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

To facilitate a better understanding of the print control method provided by the present application, a conventional process of implementing printing 600DPI and 1200DPI based on a dual laser head (i.e., two laser light sources) will be first described. Referring to fig. 1, a schematic diagram of a 600DPI printing based on a dual laser head (dual beam) is shown. It should be noted that, the correspondence between the light source and the printing medium is shown in fig. 1, because the printer receives the content (such as text, table, image, etc.) to be printed by the user, and then converts the content into a pixel sequence corresponding to the content, that is, the data to be printed, and then converts the pixel sequence into an optical signal, and irradiates the optical signal onto the photosensitive drum through the light source to form an electrostatic latent image, where the rotation speed of the photosensitive drum is matched with the conveying speed of the printing medium (if the rotation speed is not matched, the problem of deformation and ghost occurs), and the photosensitive drum can transfer the electrostatic latent image to the printing medium as it is after adsorbing the carbon powder. Although the light irradiates the photosensitive drum, one row of data is printed on the printing medium after the light source emits light to irradiate one row of photosensitive drum, the interval between two adjacent rows of light source emits light on the photosensitive drum is consistent with the interval between two rows of data after the two rows of data are transferred onto the printing medium, and the light source emits light directly corresponds to the printing medium for the convenience of understanding.

In fig. 1, 1 to p are numbers of data lines, and it should be noted that the data lines in the drawing refer to the data lines that should be output (i.e. to ensure that the printed image data matches the source image data) at the position on the print medium, which is not necessarily the data lines that are sequentially output by the light source, but for example, the light source 2 shown in fig. 1 is aligned with the data lines 2, which refers to the position where the data output by the light source 2 is finally transferred to the data lines 2 on the print medium, but does not represent that the time for outputting the data lines 2 by the light source is necessarily later than the time for outputting the data lines 1 by the light source.

The distance between the projected points or lines of two light sources (laser heads or light emitting diode arrays) on the surface of the photoreceptor drum along the circumferential surface of the photoreceptor drum (the longitudinal distance between the projected points or lines of projection on the print medium) is limited to 42.3 microns to achieve the most common resolution of 600 DPI. That is, if 600 pixel rows are to be printed within 1 inch (2.54 cm) of the longitudinal length of the print medium, the distance between two adjacent pixel rows is 42.3 microns. When printing is started, the two laser heads work simultaneously to output the 1 st line and the 2 nd line of data to be printed. The printer was controlled by a motor to move the print medium a distance of 84.6 microns, and then two laser heads were operated simultaneously to print line 3 and line 4 data, respectively. And so on until all data has been printed.

It should be noted that, during printing in which the photosensitive drum is scanned by the light source (including a non-printing area on the printing medium and a non-printing area outside the printing medium, and a printable area including an effective printing area and an ineffective printing area determined according to a margin set by a user, the non-printing area on the printing medium is an area where printing is impossible determined according to a size of the printing medium and a printer driver), the printing medium is not stationary but is conveyed forward under control of the motor, and the printing medium is moved by a distance of just 84.6 μm when the photosensitive drum is scanned by the light source.

Fig. 2 schematically shows a schematic of an erroneously dual laser head based implementation of 1200DPI printing. Wherein, due to the fixed structure of the two light sources, the longitudinal distance between the projections of the two light sources on the printing medium is still 42.3 micrometers, to achieve a resolution of 1200DPI, 1200 pixel rows are to be printed within a length of 1 inch in the longitudinal direction, and if the printing of 1200DPI is still achieved by using two working laser heads, the distance between two adjacent pixel rows is 21.15 micrometers (i.e. the distance the printing medium moves). In fig. 2, the two laser heads simultaneously work for respectively outputting the 1 st line and the 3 rd line of the data to be printed, the printing medium is controlled to move by 21.15 micrometers, then the two laser heads work for respectively outputting the 2 nd line and the 4 th line of the data to be printed, the printing medium is moved by 21.15 micrometers again, the two laser heads work for respectively outputting the 3 rd line and the 5 th line of the data to be printed, the printing medium is moved by 21.15 micrometers again, and then the two laser heads simultaneously work for respectively outputting the 4 th line and the 6 th line of the data to be printed, and the like until all the data lines are printed. As can be seen from the correspondence between the data lines and the light sources used in FIG. 2, after all the data are printed, on the 3 rd line to the P-2 nd line of the printing medium, the different light sources of each data line are overlapped and printed for 2 times, the same data are printed, the printing efficiency is equivalent to that of 1 light source, the power consumption is increased, the color is darkened and darkened, and in addition, the position cannot be completely and quite bad, and the image can appear ghost and blurry.

In order to achieve printing of 1200DPI, further referring to fig. 3, when the conventional high-speed printer achieves 1200DPI based on two laser heads, the conventional high-speed printer is achieved by a method of controlling one of the laser heads to operate and controlling the other laser head to be turned off, and the motor controls the printing medium to move by a distance of 21.15 micrometers after each line of data is scanned by the light source. This can avoid the problem of overlapping printing of data lines. But only works with 1 light source and the number of lines printed in 1 inch length is doubled compared to 600DPI, the light source is one less, resulting in a substantial reduction in output speed to one fourth (four times) the speed of a dual laser head implementing 600DPI, and a high speed laser printer becomes low speed output.

To sum up, in the prior art, if a printing resolution of 1200DPI or higher is to be achieved, only one laser head can be used to output data and the other laser head can be turned off, and the printing rate is greatly reduced although a high resolution is achieved. In view of the above, the present application provides a printer, a marking machine, and a control method thereof, which can provide high-resolution printing while also ensuring a high printing rate.

Referring to fig. 4, a flowchart of a print control method for a printer according to an exemplary embodiment of the present invention is shown. The printer in this embodiment includes a plurality of light sources, which are laser sources (arrays of irradiation sources formed by a plurality of laser heads) or linear light sources (such as LPH, light emitting diode arrays), and uses the arrays of light emitting diodes or the arrays of irradiation sources formed by a plurality of laser heads to selectively supply irradiation to a printing material or a transfer material (such as a printing medium), and it is understood that the printing control method in this embodiment can be applied to a laser printer, an LED printer.

Referring to fig. 4, the method may include:

And 41, controlling m light sources in the plurality of light sources to work together, wherein m is a positive integer greater than or equal to 2, irradiating according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance.

In this embodiment, the printer includes a plurality of light sources, and when the printer works, the number of the light sources that need to work is controlled according to the printing resolution requirement, for example, all the plurality of light sources are controlled to work, or only m light sources in the plurality of light sources may be controlled to work, where m is a positive integer greater than or equal to 2. When the printer controls the m light sources to work together, the m light sources are controlled to emit light to irradiate the photosensitive drum according to the data to be printed so as to form an electrostatic latent image. The data to be printed is a pixel sequence corresponding to printing content, and the printer controls m light sources to emit light to irradiate the photosensitive drum according to the data to be printed, namely controls the light sources to emit light or not to emit light according to pixel values.

The laser beam is reflected to the photosensitive drum through a mirror surface (for example, a polygon mirror in a laser LSU) if the light source is a laser light source, and the light emitted by the light emitting diode array is projected to the photosensitive drum if the light source is a linear light source.

Step 42 of setting the speed of transporting the printing medium such that the distance the printing medium moves in the period of one line of light irradiation is a first distance (described below)And the printing of the data to be printed is realized based on the speed of the transmission printing medium and the m light sources.

In the above description, m is a positive integer of 2 or more, n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m, to avoid causing an overlapping print error. First, a period of irradiating light for one line and a first distance are explained.

When the light source is a laser source, the period of illuminating one line refers to the time spent by the same laser source to continuously scan and print multiple lines, and the laser scans the complete line, wherein the line comprises a non-printing area and a printable area, and the non-printing area comprises a non-printing area on a printing medium and a non-printing area outside the printing medium. When the light source is a linear light source (such as LPH, i.e. a light emitting diode array), the period of illuminating one line refers to the time of illuminating the same light emitting diode array continuously for printing multiple lines, and the sum of the time of illuminating the complete line and the time of waiting for a gap is the time interval between two adjacent light emitting of the light emitting diode array.

The first distance is the spacing between the projected points or projected lines of adjacent two of the m light sources on the print medium for the printer control operation. For a laser printer, the first distance is the distance along the circumferential surface of the photosensitive drum between two points that are reflected by a mirror onto the photosensitive drum when both adjacent laser beams emit light. For a light emitting diode printer, the first distance is the distance between two light rays projected onto the photosensitive drum along the circumferential surface of the photosensitive drum when two adjacent light emitting diode arrays emit light.

The speed of transporting the printing medium is set such that the distance the printing medium moves in the period of one line of light irradiation is a first distanceMultiple, wherein m is a positive integer greater than or equal to 2, n is a positive integer, it is known thatThat is, when there are a plurality of light sources, the light sources illuminate a row of data and the print medium is moved a first distanceAfter doubling, for any one of the light sources that is in operation, the distance between the two lines of data printed before and after movement of the print medium is less than the first distance, and the print resolution is increased relative to the movement of the print medium by the first distance. In this case, the print resolution size of the printer is [1 inch/(first distance/(2n+m-1)) ] DPI, and when the first distance is 42.3 micrometers, the print resolution size of the printer is。

That is, relatively decreasing the distance that the printing medium moves in the period of light irradiation of one line can improve the longitudinal resolution under the condition that the first distance is unchanged. Meanwhile, as the number of the light sources working together is multiple, the printing speed is also improved, and taking two lasers (m=2) and n=1 as an example, the longitudinal resolution can reach 1800dpi, the time for printing one page of paper is only 3 times of the time for printing 600dpi by the double laser head, the time for printing 1200dpi by the traditional technology is 4 times of the time for printing 600dpi by the double laser head, and the resolution of the traditional technology is lower than that of the embodiment of the application even longer than that of the embodiment of the application. As for setting of the lateral resolution, if the light source is a laser, it is possible to implement by adjusting the output frequency of the laser pulse, that is, one line can print more pixel points, and if the light source is a light emitting diode array, it is sufficient to perform the selection of the light emitting diode array (4992, 9984, 14976 LEDs, etc. one line) according to the resolution to be implemented.

In order to achieve a predetermined or selected resolution, the speed of transporting the printing medium is set such that the distance by which the printing medium moves in the period of one line of light irradiation is a first distanceIt is also necessary to adjust the photosensitive drum rotation speed to match the printing medium conveyance speed.

In some embodiments, the resolution of the printer may be set at the time of shipment according to the resolution to be achieved, preferably, the number of light sources m to be operated together may be set to 2 at the time of shipment of the printer, and n to be set to 1 at the time of use of the printer, it may be determined that the distance the print medium moves during the period of light irradiation of one line is the first distance according to the step 42Multiple of the first distance between two adjacent data linesThe printing resolution is 3 times the original (when the distance the printing medium moves in the period of one line of light irradiation is the first distance), or the number of light sources m working together is set to 2 at the time of shipment and n is set to 2 at the time of printer use, according to the step 42, the distance the printing medium moves in the period of one line of light irradiation needs to be controlled to be the first distanceMultiple times, the distance between two adjacent data lines is the first distanceOr setting the number m of the light sources working together as 3 when leaving the factory and setting n as 1 when using the printer, and controlling the distance of the print medium moving in the period of one line of light irradiation as the first distance according to the calculation of the step 42Multiple times, the distance between two adjacent data lines is the first distanceThe printing resolution is 4 times that of the original printing resolution.

In some embodiments, the printing resolution may also be selected by the user, and the printer sets the m value and the n value according to the resolution selected by the user, thereby controlling the speed at which the print medium is transported. The print resolution is selected, for example, by a print parameter selection interface at a computer, or a human-machine interaction interface at a printer. Such as selecting a resolution of 1800DPI, 2400DPI, 3000DPI, etc.

Where the first distance is 42.3 micrometers, when the user-selected resolution is 2400DPI, then the m value and the n value are set to m=3 and n=1, when the user-selected resolution is 1800DPI, the m value and the n value are set to m=2 and n=1, and when the user-selected resolution is 3000DPI, the m value and the n value are set to m=2 and n=2.

In order to better understand the print control method of the present application, the following will describe in detail the number of light sources working together as 2 and 3, respectively. The case where the number of light sources is more than 3 is similar, and the details are not exhaustive. Referring to fig. 5, a schematic diagram of a dual light source implementation 1800DPI is shown, where m=2 and n=1, according to an embodiment of the application. The printer in the scenario shown in fig. 5 controls 2 light sources, denoted light source 1 and light source 2, to operate together, with a first distance of 42.3 micrometers (μm) and a print medium moving 28.2 micrometers. The data to be printed includes rows of pixel dots, noted data row 1, data row 2.

The printing resolution is 1800DPI, i.e. 1800 data lines are to be printed with a length of 1 inch in the longitudinal direction, which is 3 times that of 600DPI, and is equivalent to adding 2 data lines between every two adjacent data lines on the basis of 600DPI printing, and the interval between the two adjacent data lines is 14.1 micrometers. The distance that the printing medium moves in the period of one line of light irradiation is a first distanceMultiple, i.e., 28.2 microns. As shown in fig. 5, when printing is started, the light source 1 and the light source 2 are operated, and the 1 st line and the 4 th line of data to be printed are respectively irradiated and output. The printing medium is synchronously moved by a distance of 28.2 micrometers, and the light source 1 and the light source 2 output the 3 rd line and the 6 th line of data to be printed, respectively. From the example shown in the figure, in which the print medium is moved 28.2 micrometers for the first time from the start of printing, it is possible to sequentially derive the number of lines of data to be printed from the light source 1 and the light source 2 after each movement of the print medium by 28.2 micrometers, respectively, with the result shown as a correspondence table of data lines and light sources in fig. 5.

Referring to fig. 6, a schematic diagram of a dual light source implementation of 3000DPI is shown, where m=2 and n=2, according to an embodiment of the application. The printer in the scenario shown in fig. 6 controls 2 light sources, denoted light source 1 and light source 2, to operate together, a first distance of 42.3 microns. The data to be printed includes rows of pixel dots, noted data row 1, data row 2.

The printing resolution is 3000DPI, that is, 3000 data lines are to be printed in a length of 1 inch in the longitudinal direction, which is 5 times that of 600DPI, and is equivalent to adding 4 data lines between every two adjacent data lines on the basis of 600DPI printing, and the distance between the two adjacent data lines is 8.46 micrometers. The distance that the printing medium moves in the period of one line of light irradiation is a first distanceMultiple, i.e., 16.92 microns. As shown in the figure, when printing is started, the light source 1 and the light source 2 are operated, and the 1 st line and the 6 th line of data to be printed are output, respectively. The printing medium is synchronously moved by 16.92 micrometers, and the light source 1 and the light source 2 output the 3 rd line and the 8 th line of data to be printed, respectively. Referring to the example shown in the figure in which the print medium moves 16.92 micrometers from the start of printing, it is possible to sequentially derive the number of lines of data to be printed from the light source 1 and the light source 2 after each movement of the print medium by 16.92 micrometers, respectively, with the result that the correspondence table of data lines and light sources is shown in fig. 6.

Referring to fig. 7, a schematic diagram of a three light source implementation 2400DPI is shown, where m=3 and n=1, according to an embodiment of the application. The printer in the scenario shown in fig. 7 controls 3 light sources to operate together, the first distance being 42.3 microns, the 3 light sources being denoted light source 1, light source 2, light source 3, respectively. The data to be printed includes rows of pixel dots, noted data row 1, data row 2.

The printing resolution is 2400DPI, namely 2400 data lines are to be printed with the length of 1 inch in the longitudinal direction, which is 4 times of 600DPI, and is equivalent to adding 3 data lines between every two adjacent data lines on the basis of 600DPI printing, so that the distance between the two adjacent data lines is 10.575 micrometers. The distance that the printing medium moves in the period of one line of light irradiation is a first distanceMultiple, 31.725 microns. As shown in the figure, when printing is started, the light source 1, the light source 2 and the light source 3 operate, and the 1 st line, the 5 th line and the 9 th line of data to be printed are respectively output. After the printing medium synchronously moves by 31.725 micrometers, the light source 1, the light source 2 and the light source 3 respectively output the 4 th, the 8 th and the 12 th lines of data to be printed. Referring to the example shown in the figure from the start of printing to the movement 31.725 micrometers of the printing medium, it is possible to sequentially obtain the number of lines of data to be printed from the light source 1, the light source 2, and the light source 3 after each movement 31.725 micrometers of the printing medium, respectively, and the result is as a correspondence table of data lines and light sources in fig. 7.

Referring to the above example, when the number of light sources m that work together is the same, different printing resolutions can be achieved by setting different values of n.

The printing control method provided by the embodiment of the application not only can realize higher printing resolution, but also can improve the printing rate when a plurality of light sources work together. In a double-light source scene, when m=2 and n=1, the printing resolution of 1800DPI can be realized by controlling the transmission speed of the printing medium, and the printing output speed is one third of the speed when 600DPI is realized by the double light sources.

It should be noted that the values of m and n corresponding to the same resolution may be more than one, and the values of m and n may be adaptively set according to actual requirements (e.g., a printing rate requirement, a power consumption requirement, etc.). For example, setting m=2 and n=2, a print resolution of 3000DPI can be achieved, and setting m=4 and n=1, a print resolution of 3000DPI can also be achieved. But it is obvious that the more lasers, the higher the cost and the greater the control difficulty.

Further, as can be seen from a review of fig. 5 to 7, after adjusting the printing medium conveyance speed, since the first distance is fixed, a missing printed data line appears in the first and second lines of the data to be printed. When the number of missed data lines is small, the missed data lines are not easily observed by naked eyes for users, and the whole printing effect may not be affected. But print data integrity is also an important indicator of checking the print effect, so in order to maintain the relative integrity of the data, exemplary embodiments of the present application preferably solve the problem of missing data lines by adding blank lines to the data to be printed on the basis of the above embodiments. Preferably, (m-1) (2n+m-2) blank data lines are added above the first line of the data to be printed, or (m-1) (2n+m-2) blank data lines are added below the last line of the data to be printed, or (m-1) (2n+m-2) blank data lines are added above the first line of the data to be printed and below the last line of the data to be printed on the printing medium at the same time.

For example, as shown in fig. 5, when m=2 and n=1, the 2 nd line and the 2 nd line of the data to be printed are missed, and (2-1) (2+2-2) =2 blank data lines are added to the first line of the data to be printed on the printing medium, the added 2 nd blank line and the 2 nd blank line are missed, and the 2 nd line of the effective data to be printed are normally output. And supplementing corresponding blank data lines before and after the data to be printed, so that the effective data lines to be printed can be completely printed. If only a part of blank data lines are supplemented, the data lines which are partially missed to be printed can be printed.

For example, as shown in fig. 6, when m=2 and n=2, the 2 nd, 4 th, 2 nd and 4 th lines of the data to be printed are missed, the (2-1) (4+2-2) =4 blank data lines are complemented above the first line of the data to be printed, and the 4 blank data lines are complemented below the last line of the data to be printed, the complemented 2 nd, 4 th, 2 nd and 4 th blank lines are missed, and the 2 nd, 4 th, 2 nd and 4 th data lines of the effective data to be printed are normally output. And supplementing corresponding blank data lines before and after the data to be printed, so that the effective data lines to be printed can be completely printed. If only a part of blank data lines are supplemented, the data lines which are partially missed to be printed can be printed.

For example, as shown in fig. 7, when m=3 and n=1, the 2 nd, 3 rd, 6 th, 2 nd, 3 rd and 6 th lines of the data to be printed are missed, the (3-1) (2+3-2) =6 blank data lines are complemented above the first line of the data to be printed, and the 6 blank data lines are complemented below the last line of the data to be printed, the complemented 2 nd, 3 rd, 6 th, 2 nd, 3 rd and 6 th blank lines are missed, and the 2 nd, 3 rd, 6 th, 2 nd, 3 rd and 6 th lines of the effective data to be printed are normally printed out. And supplementing corresponding blank data lines before and after the data to be printed, so that the effective data lines to be printed can be completely printed. If only a part of blank data lines are supplemented, the data lines which are partially missed to be printed can be printed.

By supplementing (m-1) (2n+m-2) blank data lines above the first line of the data to be printed and/or (m-1) (2n+m-2) blank data lines below the last line of the data to be printed, the problem of missing lines in printing of effective data can be solved, and the integrity of the data can be maintained. Preferably, the blank data line may be printed outside the effective printing area according to a margin selected by the user.

As can be seen from the above, for the same printer, the same printing resolution can be achieved under certain conditions by different numbers of light sources, for example, a resolution of 3000DPI can be achieved for each of a dual light source (m=2 and n=2) and a four light source (m=4 and n=1). If the printer is a four-light source printer, 2 adjacent ones of the printers can be controlled to work together, and the other 2 are used as redundant light sources, and the redundant light sources are controlled to be not operated.

In addition to the m light sources working together as described above, the printer additionally comprises a redundant light source or light sources controlled to be inactive.

Preferably, the data to be printed may be temporarily stored in the form of, for example, a data stack, and all data lines may be output at arbitrary timing by controlling the order in which the data is read from the data stack. For example, dividing the data in the data stack into m light sources, each light source printing out an assigned data line. Thus, in some embodiments, for data to be printed, each light source corresponds to a plurality of data lines, all data lines corresponding to one light source being referred to as zone data corresponding to that light source, e.g., for a printer having m light sources working together, one zone data for each light source. The data to be printed may be divided into first region data, second region data to mth region data, each of the first region data to the mth region data including a plurality of lines of data. The first to m-th area data are respectively assigned to a first to m-th light sources for printing, for example, the first area data are assigned to the first light source and the second area data are assigned to the second light source. The first light source to the mth light source are arranged in order from upstream to downstream when transferring image data onto a printing medium. The order in which the light output data from each light source of the printer is output is not necessarily the same as the order in which the data is transferred to the printing medium. The upstream is a downstream direction in which, among the plurality of light sources, the light source corresponding to the data line transferred onto the printing medium is located, and the direction in which the light source corresponding to the data line transferred onto the printing medium is located is an upstream direction.

When printing, the line-by-line alternate printing of one line of the first region data to one line of the m-th region data is required to be described, wherein the line-by-line refers to that for each region data, each time one line of the first region data is printed, the alternate refers to that for the space alternate distribution of m region data on a printing medium, and the m light sources are not used for alternately emitting light in time, because the m light sources work together during printing, m lines of data can be printed at a time, and the m lines of data come from one line of the m region data respectively.

Still taking fig. 5 as an example, when m=2 and n=1, the 2 nd line and the 2 nd line of the data to be printed are missed, the 2 nd blank data line is supplemented on the first line of the data to be printed on the printing medium, the supplemented 2 nd blank data line is missed, and for the light source 1, only the 1 st blank data line is needed to be output, so that only one blank data line is needed to be added on the first line of the first area data of the light source 1, the 2 nd blank data line is supplemented under the last line of the data to be printed on the printing medium, and the 2 nd blank data line is missed, so that only one blank data line is needed to be added under the last line data of the second area data of the light source 2.

Taking fig. 7as an example, when m=3 and n=1, the 2 nd, 3 rd, 6 th, 2 nd, 3 rd and 6 th lines of the effective data to be printed are missed, the first line of the data to be printed is supplemented with 6 blank data lines, among the 6 blank data lines, the 1 st blank data line and the 4 th blank data line are only required to be output by the light source 1, the 5 th blank data line is only required to be output by the light source 2, so that 2 blank data lines are only required to be added to the first line of the first area data of the light source 1,1 blank data line is required to be added to the first line of the second area data of the light source 2, 6 blank data lines are supplemented to the last line of the data to be printed on the printing medium, the 6 blank data lines are only required to be output by the light source 3, the 1 st blank data line and the 4 th blank data line are only required to be output by the light source 2, the last line of the second area data of the light source 2 is only required to be added to the last line of the second area data of the light source 2, and the last line of the third blank data of the light source 2 is required to be added to the last line of the data of the light source 2. In general, (m-1) (2n+m-2)/m blank data lines are complemented above the first line of the first region data to become new first region data, and/or (m-1) (2n+m-2)/m blank data lines are complemented below the last line of the m-th region data to become new m-th region data. And adding (m-1) (2n+m-2)/m- (x-1) blank data lines and the last line before the first line in the x-th region data (1 < x < m, x is a positive integer), and adding (x-1) blank lines to obtain new x-th region data. At the time of printing, the first line in the new first area data to the first line in the new mth area data are printed at the same time.

For example, a printer with dual light sources works, all the data lines to be printed of the light source 1 are added with the corresponding blank lines above the first line to be used as first area data, all the data lines to be printed of the light source 2 are added with the corresponding blank lines below the last line to be used as second area data, when printing is performed, the first lines of the first area data and the first lines of the second area data are printed at the same time, and after the printing medium moves once in a period of illuminating one line, the second lines of the first area data and the second lines of the second area data are printed at the same time until all the data lines to be printed and the blank lines of the first area data and the second area data are printed.

For the problem of missing lines of data in printing, the above embodiments give a solution to supplementing the blank lines of data before the first line and/or after the last line of data to be printed. In addition, the application also provides another way for solving the omission of the data line. In some embodiments, special processing is performed on the missing data line, for example, the first (m-1) (2n+m-2) data line of the data to be printed is printed, the most downstream light source of the m light sources is controlled to start data output first, the last (m-1) (2n+m-2) data line of the data to be printed is printed, the most upstream light source of the m light sources is controlled to finish data output last, and the data line of each (m-1) (2n+m-2) before and after the data to be printed is printed according to a preset time sequence. The preset timing is determined according to the relative position of the light sources, the data lines that would otherwise be missed, and the order of the valid data lines transferred to the print medium.

In order to facilitate understanding of the processing of missing data lines provided by the present embodiment, an example is illustrated below.

Referring to fig. 8, a schematic diagram of several lines of data before printing in a dual light source implementation 1800DPI according to another embodiment of the application is shown, where m=2 and n=1. The first distance is 42.3 microns, the two light sources are respectively denoted as light source 1 and light source 2, and as can be seen from the definition of upstream and downstream, light source 1 is an upstream light source relative to light source 2, and light source 2 is a downstream light source. The data to be printed includes rows of pixel dots, noted data row 1, data row 2. Controlling the distance of the print medium moving in the period of scanning one line by the light source to be a first distanceMultiple, i.e., 28.2 microns. The printing is started, the light source 1 is controlled not to output data, and the light source 2 is controlled to output data (when the light source 2 works, the data needing to emit light and the data not needing to emit light are output, the data needing to emit light can be a solid part of a character or an image, and the data not needing to emit light can be blank or other blank image data). So that the light source 2 prints out the 2 nd line data first, when the printing medium moves to the 4 th line where the light source 2 needs to print out, the light source 1 and the light source 2 are controlled to output data together, the light source 1 outputs the 1 st line data, and the process of the light source 1 and the light source 2 working together refers to the example shown in fig. 5. Referring to fig. 9, a schematic diagram of several lines of data after printing in 1800DPI of a dual light source implementation according to another embodiment of the application is shown, when light source 1 outputs the data of the 4 th line (i.e., p-3 th line), light source 2 is controlled to output the data of the last line (i.e., p-th line), then light source 1 is controlled to output the data of the 2 nd line (i.e., p-1 line), and light source 2 is controlled not to output the data. So that all valid data lines in the data to be printed are printed out. That is, embodiments of the present application achieve that all valid data lines are not missed by selectively providing illumination to a printing material or transfer material (e.g., a print medium) using an array of illumination sources formed by an array of light emitting diodes or a plurality of laser heads.

Referring to fig. 10, a schematic diagram of the first few lines of data printed in a 3000DPI dual light source implementation according to another embodiment of the application is shown, where m=2 and n=2. The first distance is 42.3 microns and the two light sources are denoted light source 1 and light source 2, respectively. The data to be printed comprises a plurality of rows of pixel points, which are recorded as data row 1 and data row 2, wherein the data row p, the distance between two adjacent data rows is 8.46 micrometers, and the distance of the printing medium moving in the period of scanning one row by the light source is controlled to be a first distanceMultiple, i.e., 16.92 microns. When printing is started, the light source 1 is controlled to not output data, the light source 2 is controlled to output data, the light source 2 outputs the 2 nd line data and the 4 th line data, and when the printing medium moves to the position that the light source 2 needs to output the 6 th line data, the light source 1 and the light source 2 are controlled to output data together. The process of outputting data together with the light source 1 and the light source 2 refers to an example shown in fig. 6. Referring to fig. 11, a schematic diagram of several lines of data after printing in 3000DPI is shown in a dual light source implementation according to another embodiment of the present application, when the light source 1 outputs the 6 th line (i.e., p-5 line) of data from the reciprocal, the light source 2 is controlled to output the p-th line of data, and the light source 1 is controlled to output the 4 th line of data from the reciprocal and the 2 nd line of data from the reciprocal. So that all data lines in the data to be printed are printed out.

Referring to fig. 12, a schematic diagram of several lines of data before printing in 2400DPI with m=3 and n=1 is shown in a three-light-source implementation according to another embodiment of the application. The first distance is 42.3 microns and the three light sources are respectively denoted as light source 1, light source 2 and light source 3. The data to be printed comprises a plurality of rows of pixel points, which are recorded as data row 1 and data row 2, wherein the data row p, the distance between two adjacent data rows is 10.575 micrometers, and the distance of the printing medium moving in the period of irradiating one row by light is controlled to be a first distanceMultiple, 31.725 microns. When printing is started, the light source 1 is controlled to output no data, the light source 2 and the light source 3 output data, the light source 3 outputs the 3 rd line data and the 6 th line data, the light source 2 outputs the 2 nd line data, when the printing medium moves to the light source 3 and the 9 th line data needs to be output, the light source 1, the light source 2 and the light source 3 are controlled to output data together, and the process of outputting the data together by the light source 1, the light source 2 and the light source 3 is referred to as an example shown in fig. 7. Referring to fig. 13, a schematic diagram of several printed lines of data in 2400DPI with three light sources according to another embodiment of the present application is shown, where after the light source 1 prints the 9 th line in reciprocal number, i.e. p-8 lines, the transmission speed of the printing medium is controlled, the light source 3 is controlled to output no data, the light source 1 is controlled to output the 6 th line in reciprocal number, the 3 rd line in reciprocal number, and the light source 2 is controlled to output the 2 nd line in reciprocal number. So that all valid data lines in the data to be printed are printed out.

According to the embodiment of the application, the printing resolution can be improved by adjusting the moving distance of the printing medium, and the situation of printing missing of the data line after adjusting the transmission speed of the printing medium can be avoided by adding blank line data or preprocessing the (m-1) (2n+m-2) lines before and after the data to be printed, so that the printing resolution is improved, and meanwhile, the integrity and the accuracy of the printing data can be ensured.

Further, the application also provides a printer for realizing the printing control method, and the printer provided by the embodiment of the application is exemplified below.

The printer comprises a plurality of light sources and a control device, wherein the light sources are laser sources or linear light sources, m light sources in the light sources work together, m is a positive integer greater than or equal to 2, irradiation is carried out according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

The control device is configured to:

Wherein m is configured to 3 and n is configured to 1, or m is configured to 2 and n is configured to 2, the control device controls the speed at which the printer transfers the printing medium according to the parameters m and n.

The m value and the n value are configured according to the resolution selected by the user, thereby controlling the speed of transporting the printing medium.

Setting two adjacent light sources in the m light sources so that the first distance is equal to 42.3 micrometers;

The control device is further configured to control a speed at which the printer transfers the printing medium by adjusting a rotational speed of the printer drive motor.

The control means is further configured to complement (m-1) (2n+m-2) blank data lines above the first line of the data to be printed and/or (m-1) (2n+m-2) blank data lines below the last line of the data to be printed.

The control device is further configured to print the blank data line outside the effective print area according to the margin selected by the user.

The control device is further configured to control the downstream light source of the m light sources to start data output first when the front (m-1) (2n+m-2) data line of the data to be printed is printed, control the upstream light source of the m light sources to finish data output last when the tail (m-1) (2n+m-2) data line of the data to be printed is printed, and print the front and rear (m-1) (2n+m-2) data lines of the data to be printed according to a preset time sequence.

The printer comprises m light sources, no redundant light sources, or

The control device is further configured to:

Dividing data to be printed into first area data, second area data and mth area data, and respectively distributing the first area data to the mth area data to first light sources to the mth light sources in the m light sources for printing, wherein the first area data to the mth area data comprise multiple rows of data.

The control means is further configured to complement (m-1) (2n+m-2)/m blank data lines above the first line of the first area data as new first area data and/or to complement (m-1) (2n+m-2)/m blank data lines below the last line of the m-th area data as new m-th area data.

The control means is further configured to add (m-1) (2n+m-2)/m- (x-1) blank data lines above the first line of the x-th region data (1 < x < m, x being a positive integer) and/or (x-1) blank lines below the last line, becoming new x-th region data.

The printing control method executed by the printing device is described in detail above, and is not repeated here to avoid excessive repetition.

The embodiment of the application also provides another printing control method for a printer, the printer comprises a plurality of light sources, the light sources are laser sources or linear light sources, and the printing control method comprises the following steps:

Setting the speed of transporting the printing medium according to the resolution selected by the user so that the distance the printing medium moves in the period of one line of light irradiation is a first distanceIn the case of multiple times, multiple printing resolutions may be achieved, and the implementation process may refer to the description of the foregoing embodiments of the present application, which is not repeated here.

If the speed of transporting the printing medium is set such that the distance the printing medium moves in the period of light irradiation of one line is the first distance according to the resolution selected by the user, the corresponding resolution selected by the user is noted as the first resolution, and if the speed of transporting the printing medium is set such that the distance the printing medium moves in the period of light irradiation of one line is 2 times the first distance according to the resolution selected by the user, the corresponding printing resolution is one half of the first resolution.

For example, when the first distance is 42.3 micrometers, the speed of transporting the printing medium is set so that the distance by which the printing medium moves in the period in which the light irradiates one line is 2 times the first distance, that is, 84.6 micrometers, the pitch between two adjacent lines of data lines is 42.3 micrometers, and the printing resolution is 600DPI.

The printing control method for the printer provided by the embodiment not only can be compatible with 600DPI of a printing base, but also can realize printing with higher resolution and realize compatibility of printing resolution.

Further, the embodiment of the application also provides a printer, which comprises a plurality of light sources and a control device, wherein the light sources are laser sources or linear light sources, m light sources in the light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

In this embodiment, the printing control method executed by the printing device is described in detail above, and is not described here again to avoid excessive repetition.

Referring to fig. 14, a schematic diagram of a printer according to an embodiment of the present application is provided, the printer includes a casing 1401, a paper box 1402, a paper outlet 1403, and a control button 1404, a developing assembly, a transfer roller, a fixing assembly, a driving assembly, a printing medium conveying assembly, and a control assembly are disposed in the printer, the developing assembly includes a photosensitive drum, the photosensitive drum contacts with the transfer roller to form a nip, and the printing medium is transferred to the nip by the conveying assembly to complete data transfer. Fig. 15 is a schematic diagram of transferring data lines in an axial direction of a photosensitive drum according to an embodiment of the present application, the schematic diagram includes a laser 11, the laser 11 includes 2 light sources, namely a light source 1 and a light source 2 (not shown in the figure), the light source 2 emits light to pass through a polygon mirror and output light first 12, the light source 1 emits light to pass through a polygon mirror and output light second 13, the photosensitive drum 16 rotates counterclockwise, the transfer roller 17 rotates clockwise, the printing medium 14 passes through an embossing area formed between the photosensitive drum 16 and the transfer roller 17, a plurality of data lines 15 are formed on the photosensitive drum by irradiation of the light source, the data lines 15 are transferred onto the printing medium as the photosensitive drum rotates, a plurality of data lines transferred onto the printing medium have been transferred to a front end of the printing medium, and a forward direction of the printing medium is shown in fig. 15.

Further, an embodiment of the present application further provides a marking control method for a marking machine, referring to fig. 16, which is a schematic diagram of a working principle of the marking machine, where a laser marking machine uses a laser beam to mark permanent marks on surfaces of various materials, including a laser, a focusing lens, a reflecting mirror, a working table, a driving motor, and a computer, and a moving direction of the focusing lens includes a Y direction and an X direction shown in the drawing. The effect of the marking is to expose the deep layer material by the evaporation of the surface layer material, thereby engraving exquisite patterns, trademarks and characters.

The marking machine comprises a plurality of laser light sources, and the marking machine executes any printing control method.

The embodiment of the application also provides a marking machine, which comprises a plurality of laser light sources and a control device, wherein m light sources in the plurality of laser light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be marked, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

Preferably, the control means is further configured to complement (m-1) (2n+m-2) blank data lines above the first line of data to be printed and/or (m-1) (2n+m-2) blank data lines below the last line of data to be printed.

The control method executed by the control device of the present embodiment is described in detail above, and is not described here again to avoid excessive repetition.

The embodiment of the application also provides a computer readable storage medium, which stores a computer program, and the computer program realizes the steps in the embodiments of the printing control method and the marking control method when being executed by a processor.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiments, and may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include at least any entity or device capable of carrying computer program code to a print control method/printer for a printer, a recording medium, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a U-disk, removable hard disk, magnetic or optical disk, etc.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.

Claims

1. A print control method for a printer including a plurality of light sources, the light sources being laser light sources or line light sources, the print control method comprising:

The speed of transporting the printing medium is set such that the distance the printing medium moves in the period of one line of light irradiation is a first distance And printing the data to be printed based on the speed of the transmission printing medium and the m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

2. The print control method according to claim 1, wherein m is set to 3 and n is set to 1, or m is set to 2 and n is set to 2, and the speed of transporting the print medium is controlled according to the parameters m and n.

3. The print control method according to claim 1, further comprising setting an m value and an n value according to a resolution selected by a user, thereby controlling a speed of transporting the print medium;

4. The print control method according to claim 1, wherein (m-1) (2n+m-2) blank data lines are complemented above a first line of data to be printed on the print medium, and/or (m-1) (2n+m-2) blank data lines are complemented below a last line of data to be printed on the print medium.

5. The print control method according to claim 4, wherein the blank data line is printed outside the effective print area of the print medium according to a margin selected by a user.

6. The print control method according to claim 1, wherein a first (m-1) (2n+m-2) data line of data to be printed is printed, a downstream-most light source of the m light sources is controlled to start data output first, a last (m-1) (2n+m-2) data line of data to be printed is printed, a last light source of the m light sources is controlled to finish data output last, and each (m-1) (2n+m-2) data line of the data to be printed is printed according to a preset timing.

7. The print control method according to claim 1, wherein the printer additionally includes, in addition to the above-described m light sources that work together, a redundant light source or light sources that are controlled to be inactive;

8. The print control method according to claim 1, wherein the data to be printed is divided into first region data, second region data to mth region data, and the first region data to mth region data are respectively assigned to first light sources to mth light sources of the m light sources to print, each of the first region data to the mth region data including a plurality of lines of data.

9. The print control method according to claim 8, wherein (m-1) (2n+m-2)/m blank data lines are complemented above the first line of the first area data as new first area data, and/or (m-1) (2n+m-2)/m blank data lines are complemented below the last line of the m-th area data as new m-th area data.

10. The print control method according to claim 9, wherein (m-1) (2n+m-2)/m- (x-1) blank data lines are added above the first line of the x-th area data and/or (x-1) blank lines are added below the last line to become new x-th area data;

Wherein 1< x < m, x is a positive integer.

11. The printer is characterized by comprising a plurality of light sources and a control device, wherein the light sources are laser sources or linear light sources, m light sources in the light sources work together, m is a positive integer greater than or equal to 2, irradiation is carried out according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

setting the speed of the printer for conveying the printing medium to a first distance in a period of one line of light irradiation And printing the data to be printed based on the speed of the transmission printing medium and the m light sources, wherein n is a positive integer, and m and n are set to satisfy the condition that 2n+m-1 is not an integer multiple of m.

12. The printer of claim 11, wherein m is configured to be 3 and n is configured to be 1, or m is configured to be 2 and n is configured to be 2, the control means controlling the speed at which the printer transfers the printing medium in accordance with the parameters m and n.

13. The printer of claim 11, wherein the m value and the n value are configured according to a resolution selected by a user to thereby control a speed of transporting the printing medium.

14. The printer of claim 13, wherein two adjacent light sources of the m light sources are arranged such that the first distance is equal to 42.3 microns;

15. The printer of claim 11, wherein the control device is further configured to control the speed at which the printer delivers the print medium by adjusting the rotational speed of the printer drive motor.

16. The printer of claim 11 wherein the control means is further configured to complement (m-1) (2n+m-2) blank data lines above a first line of data to be printed on the print medium and/or to complement (m-1) (2n+m-2) blank data lines below a last line of data to be printed on the print medium.

17. The printer of claim 16, wherein the control device is further configured to print the blank data lines outside the effective print area according to a user selected margin.

18. The printer of claim 11, wherein the control means is further configured to control the downstream-most light source of the m light sources to start data output first when printing the first (m-1) (2n+m-2) data line of the data to be printed, to control the upstream-most light source of the m light sources to finish data output last when printing the last (m-1) (2n+m-2) data line of the data to be printed, and to print the first and second (m-1) (2n+m-2) data lines of the data to be printed according to a predetermined timing.

19. The printer of claim 11, wherein the printer comprises a plurality of light sources for the m light sources, including no redundant light sources, or

The printer additionally includes, in addition to the above-described m light sources working together, a redundant light source or light sources controlled to be inactive;

20. The printer of claim 11, wherein the control device is further configured to:

Dividing data to be printed into first area data, second area data and mth area data, respectively distributing the first area data to the mth area data to first light sources to mth light sources in the m light sources for printing, wherein the first area data to the mth area data comprise multiple rows of data.

21. The printer of claim 20, wherein the control means is further configured to complement (m-1) (2n+m-2)/m blank data lines above the first line of the first region data as new first region data and/or to complement (m-1) (2n+m-2)/m blank data lines below the last line of the m-th region data as new m-th region data.

22. A print control method for a printer including a plurality of light sources, the light sources being laser light sources or line light sources, the print control method comprising:

23. The printer is characterized by comprising a plurality of light sources and a control device, wherein the light sources are laser sources or linear light sources, m light sources in the light sources work together, m is a positive integer greater than or equal to 2, irradiation is carried out according to data to be printed, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

24. A marking control method for a marking machine comprising a plurality of laser light sources, the marking machine performing the control method of any one of claims 1 to 10, 22.

25. The marking machine is characterized by comprising a plurality of laser light sources and a control device, wherein m light sources in the plurality of laser light sources work together, m is a positive integer greater than or equal to 2, irradiation is performed according to data to be marked, and the distance between projection points or projection lines of two adjacent light sources in the m light sources on a printing medium is a first distance;

the control device is configured to:

26. The marking machine of claim 25, wherein the control device is further configured to complement (m-1) (2n+m-2) blank data lines above a first line of data to be marked and/or (m-1) (2n+m-2) blank data lines below a last line of data to be marked.

27. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the control method according to any one of claims 1 to 10, 22, 24.