CN116001460A

CN116001460A - Dynamic calibration method and dynamic calibration device for color printer

Info

Publication number: CN116001460A
Application number: CN202211685164.3A
Authority: CN
Inventors: 黄昱
Original assignee: Beijing Bentu Information Technology Co ltd
Current assignee: Beijing Bentu Information Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-25

Abstract

The invention discloses a dynamic calibration method and a dynamic calibration device for a color printer. After receiving a page to be printed, the color printer judges whether a print engine has initiated a calibration application before printing, if the calibration is needed, the printer carries out inverse halftone conversion on the halftone page to be printed, converts the page to be printed into a 32-bit color image, then carries out TRC calibration on each pixel according to the requirement of the print engine, generates a new 32-bit color page after calibration and carries out halftone raster image conversion. Therefore, the printer controller can complete timely color synchronous calibration according to pages, and high-quality color printing is realized.

Description

Dynamic calibration method and dynamic calibration device for color printer

Technical Field

The invention relates to the field of printers, in particular to a dynamic calibration method and a dynamic calibration device for a color printer.

Background

Printers are classified into two main categories from the data format of the supported print jobs: GDI (graphics device interface) printers and PDL (Page description language) printers.

A PDL printer refers to a printer that uses a page description language (e.g., PCL, postcript, etc.) to describe pages to be printed. When a user performs printing, each page of a file to be printed by a print driver on a personal computer is presented by a general Page Description Language (PDL) and issued to a printer. The printer then converts each page of the print job into a locally supported raster image for printing via the page description language interpreter according to its own print engine characteristics. Because the PDL printer processes the color, the printer controller completes the color calibration according to the own equipment characteristics on the printer, and the printer end completes the color calibration, the printer can calibrate by using new calibration data according to the calibration request sent by the print engine in time, and provides high-quality printing effect.

The GDI printer is a printer that receives a raster image supported by a host directly from a personal computer to print. When using such a printer, the print driver of the personal computer directly converts the page to be printed into a raster image required by the printer according to a predefined color management method by calling the graphics device interface of the operating system, and transmits the raster image to the printer for printing. The print engine based calibration is done before the raster image is generated at the personal computer side. After receiving such data, the printer cannot perform further data processing, which may deviate the printed color and image from the expected colors, and cannot guarantee high-quality printing. When the personal computer generates the print job, the raster image is generated once, and for the print job with multiple pages and copies, the raster image cannot be adjusted along with the calibration requirement of the print engine along with the increase of the number of printed pages, so that the defects of color loss, line loss and the like occur, and the print quality is affected.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a dynamic calibration method and a dynamic calibration device for a color printer.

According to a first aspect, an embodiment of the present invention provides a dynamic calibration method for a color printer, including:

receiving a page to be printed;

judging whether the page to be printed needs color calibration or not;

when color calibration is needed, performing color calibration on the page to be printed according to a preset color calibration algorithm to obtain a page after color calibration;

and printing the page after the color calibration.

In some embodiments, performing color calibration on the page to be printed according to a preset color calibration algorithm, and obtaining the page after color calibration includes:

performing inverse halftone transformation on the page to be printed to obtain a first transformation page;

performing color calibration on the first transformation page to obtain a second transformation page;

and carrying out halftone transformation on the second transformation page to obtain a page after color calibration.

In some embodiments, the performing color calibration on the first transformation page to obtain a second transformation page includes:

acquiring a color correction table;

and carrying out color calibration on the first transformation page according to the color correction table to obtain a second transformation page.

In some embodiments, the determining whether the page to be printed requires color calibration includes:

judging whether color calibration conditions are met, and judging whether the page to be printed is subjected to color calibration at a transmitting end or not when the color calibration conditions are met;

when the color calibration is not completed at the transmitting end, judging that the page to be printed needs the color calibration;

and when the color calibration is finished at the transmitting end, judging that the page to be printed does not need the color calibration.

In some embodiments, the method further comprises: and sending the color correction table to a sending end so that the sending end can perform color calibration by using the color correction table.

In some embodiments, after determining that the page to be printed does not need color calibration, the received page does not need to be color calibrated in real time until a command for color calibration is received.

According to a second aspect, an embodiment of the present invention provides a dynamic calibration device for a color printer, including:

the page receiving module is used for receiving a page to be printed;

the calibration checking module is used for judging whether the page to be printed needs color calibration or not;

the calibration module is used for carrying out color calibration on the page to be printed according to a preset color calibration algorithm when color calibration is needed, so as to obtain a page after the color calibration;

and the printing module is used for printing the page after the color calibration.

In some embodiments, the calibration module comprises:

the inverse halftone conversion module is used for carrying out inverse halftone conversion on the page to be printed to obtain a first conversion page;

the color calibration module is used for carrying out color calibration on the first transformation page to obtain a second transformation page;

and the halftone conversion module is used for carrying out halftone conversion on the second conversion page to obtain a page after color calibration.

According to a third aspect, an embodiment of the present invention provides an electronic device, including a processor, and at least one memory communicatively connected to the processor, where the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the dynamic calibration method described above.

According to a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer instructions that cause the computer to perform the dynamic calibration method described above.

After receiving the rasterized printing page, the dynamic calibration method of the color printer judges whether the page to be printed has initiated a calibration application or not before printing, if the calibration is needed, the printer carries out inverse halftone transformation on the halftone page to be printed, then calibrates each pixel according to the requirement, generates a new calibrated page and carries out halftone raster image conversion. Therefore, the printer controller can complete timely synchronous color calibration according to pages, and high-quality color printing is realized.

Drawings

FIG. 1 is a flow chart of a method for dynamically calibrating a color printer according to an embodiment of the present invention;

FIG. 2 is a flowchart of an embodiment of a method for dynamically calibrating a color printer according to an embodiment of the present invention;

FIG. 3 is a block diagram of a dynamic calibration module of a color printer according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" means two or more, unless specified or indicated otherwise; the terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," and the like in the embodiments of the present application are described in terms of angles shown in the accompanying drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

Example 1

The invention relates to a dynamic calibration method of a color printer, which is used for the color printer, wherein the printer can be a GDI printer, the GDI printer finishes the analysis from printing content to raster bitmap image information in a computer and directly transmits the information to the printer, a controller of the printer is mainly used for storing the received raster bitmap image and controlling a printing engine to finish printing, and the printing engine consists of a laser scanner, a reflecting prism, a photosensitive drum, a carbon powder box, a thermal transfer unit, a paper feeding mechanism and the like.

Fig. 1 is a flowchart of a dynamic calibration method of the color printer of embodiment 1. Comprising the following steps:

101. and receiving a page to be printed.

And the computer (transmitting end) analyzes the printing content of the page to be printed with the raster bitmap image information and transmits the raster bitmap image information to the printer. Raster bitmap image information includes some functions for drawing points, lines, rectangles, polygons, ellipses, bitmaps, and text. In order to facilitate the output of the printer, the decompressed data is subjected to halftone transformation to form a binarized page image to be printed, namely, a rasterized image. In some embodiments, the image of CMYK is formed after halftone conversion. The process of halftoning is to use special binary transformations to generate images with low-pass characteristics for the human eye vision system, which when viewed at a distance, are still an effect of continuous images. A page receiving module in the printer receives the rasterized image and stores the rasterized image in a controller of the printer.

102. And judging whether the page to be printed needs color calibration or not.

And after the printer receives the rasterized page to be printed, judging whether the page to be printed needs color calibration or not. The print engine determines whether the printer performs color calibration on the page to be printed according to preset conditions. For example, the printer may require color calibration after a period of operation, such as once per 2000 printed pages. Or the print engine initiates a color calibration when the print color is found to be non-conforming to the primary color.

In some embodiments, firstly, judging whether a color calibration condition is met, and judging whether the page to be printed has completed color calibration at a transmitting end when the color calibration condition is met;

In general, a computer stores a color correction table corresponding to a printer, and for example, when a printer driver is first installed, the printer transmits the color correction table to the computer. In this embodiment, the print engine of the printer updates the color correction table in the printer according to the actual working condition, and updates the color correction table in the computer at regular intervals. The color correction table corresponds to a printer print color, for example, a CMYK color system color correction table of a printer has four colors each having 256 intermediate color values.

Specifically, when the color correction table in the computer is the latest, the color correction table in the computer is the same as the color correction table in the printer. At this time, the color calibration of the document to be printed is already performed at the computer (transmitting end), so that the document to be printed does not need to be calibrated in the printer. In the computer, before the page to be printed is generated, the computer uses the color correction file to calibrate, and rasterizes the file to be printed once. In this case, it is determined that the page to be printed does not require color calibration. After judging that the page to be printed does not need color calibration, the page received by the printer does not need to be subjected to color calibration in real time until the print engine sends out a color calibration signal again.

When the color correction table in the computer is different from the color correction table in the printer, it can be judged that the page to be printed needs color calibration.

103. And when the color calibration is needed, performing the color calibration on the page to be printed according to a preset color calibration algorithm to obtain a page after the color calibration.

Specifically, as shown in fig. 2, when it is determined that the page to be printed requires color calibration, the following steps are performed:

103-1, performing inverse halftone transformation on the page to be printed to obtain a page after the inverse halftone transformation, and taking the page after the inverse halftone transformation as a first transformation page. In order to enhance high-precision recognition of halftone images, it is necessary to restore the halftone images to continuous images. Thus, in the present embodiment, the inverse halftone conversion is performed on the halftone CMYK images, forming a continuous color image. In some implementations, the rasterized CMYK image is converted to a CMYK color image that is 32 bits per pixel. Specifically, the inverse halftone transformation can process a halftone image by adopting a halftone image restoration network model to obtain an initial continuous tone image, and then process the initial continuous tone image according to a preset depth residual error screen removal model to obtain an inverse halftone transformation image. The present embodiment is not limited to the inverse halftone conversion method, and can be determined by one skilled in the art as needed.

103-2, performing color calibration on the page after the inverse halftone conversion to obtain a calibrated page, and taking the calibrated page as a second conversion page. Specifically, a color correction table is firstly obtained; and carrying out color calibration on the page after the inverse halftone conversion (namely, a first conversion page) according to the color correction table to obtain a calibrated page (namely, a second conversion page). As described above, the color correction table is generated by the print engine and the print controller, and can be automatically generated when the print engine recognizes that color correction is required. Preferably, the color correction table may be a table of TRC color values, and each pixel of the above-mentioned 32-bit CMYK color image is calibrated using a TRC color value look-up table transform.

103-3, performing halftone transformation on the calibrated page (namely, the second transformation page) to obtain a page after color calibration. After halftone conversion, a halftone image, i.e., a rasterized image, that is convenient for printing by a printer is reformed.

104. And printing the page after the color calibration. The printer prints the image to be printed after the color calibration so as to realize high-quality color printing.

In some embodiments, the printer sends parameters of the color calibration process, such as the color correction table of the printer, to the personal computer after printing all the received pages is completed, and updates the color correction table in the computer so that the image can be corrected according to the latest color correction table in the computer (sender).

The embodiment can perform real-time color calibration on the page to be printed in the printer. The GDI printer can perform color calibration only once in a computer, and the calibration effect is easily biased. After a computer sends a file to be printed to the printer, the dynamic calibration method of the color printer of the embodiment judges whether a print engine has initiated a calibration application before printing, if so, the printer performs inverse halftone transformation on a halftone page to be printed, then calibrates each pixel according to the requirement, generates a new calibrated page and performs halftone raster image conversion. For example, the computer sends 100 pages of files to be printed to the printer for printing, the print engine monitors the printing content of each page, and when monitoring, a certain page of printing color is abnormal, for example, the printing color is found to have deviation in the page 2, then a color calibration requirement is initiated, and a new color calibration table is formed for performing color calibration on the rest of the printing files in the printer. After printing all pages, the printer sends the color calibration process to the computer, mainly sends the color correction table adopted in the color calibration process to the computer, so that the color correction table in the computer is updated, and the computer is convenient to correct the color according to the latest updated color correction table.

The embodiment ensures that the printer controller can complete timely synchronous calibration of colors according to pages, thereby realizing high-quality color printing.

Example 2

Fig. 3 is a schematic diagram of a dynamic calibration device of a color printer according to the present embodiment. The dynamic calibration device of the color printer comprises:

the page receiving module 1 is used for receiving a page to be printed; reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

The calibration checking module 2 is configured to determine whether the page to be printed needs color calibration, and specifically refer to the corresponding parts of the above method embodiment, which are not described herein again.

The calibration module 3 is used for carrying out color calibration on the page to be printed according to a preset color calibration algorithm when color calibration is needed, so as to obtain a page after the color calibration; reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

And the printing module 4 is used for printing the page after the color calibration. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the calibration module 3 comprises:

an inverse halftone conversion module 301, configured to perform inverse halftone conversion on the page to be printed to obtain a first converted page; reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

The color calibration module 302 is configured to perform color calibration on the first transformation page to obtain a second transformation page; reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

And the halftone conversion module 303 is configured to perform halftone conversion on the second conversion page to obtain a page after color calibration. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the calibration module 3 comprises:

the color correction table obtaining module 304 is configured to obtain a color correction table. The color calibration module 302 performs color calibration on the page after the inverse halftone transformation according to the color correction table, so as to obtain a calibrated page. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the calibration check module 2 is also used to,

judging whether color calibration conditions are met, and judging whether the page to be printed is subjected to color calibration at a transmitting end or not when the color calibration conditions are met; when the color calibration is not completed at the transmitting end, judging that the page to be printed needs the color calibration; and when the color calibration is finished at the transmitting end, judging that the page to be printed does not need the color calibration. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the color correction table updating module is further configured to send a color correction table to a sender, so that the sender uses the color correction table to perform color calibration. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the calibration checking module 2 is further configured to, after determining that the page to be printed does not need color calibration, receive a page that does not need color calibration in real time until a command that needs color calibration is received. Reference is specifically made to the corresponding parts of the above method embodiments, and no further description is given here.

In some embodiments, the print module 4 comprises a print engine comprising a laser control unit and print control module 401, an imaging engine unit 402.

The rasterized page to be printed is firstly transmitted to a laser control unit and a printing control module 401, the laser control unit and the printing control module 401 send data and commands to a forming engine unit 402, and the forming engine unit 402 forms a visual file with tracing information. The traceability information refers to process information of the printer for performing color calibration on the page to be printed.

Example 3

Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present application, where, as shown in fig. 4, the electronic device may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the dynamic calibration method of the color printer provided in the embodiments of the present application.

Fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present application. The electronic device shown in fig. 4 is only an example and should not be construed as limiting the functionality and scope of use of the embodiments herein.

As shown in fig. 4, the electronic device is in the form of a general purpose computing device. Components of an electronic device may include, but are not limited to: one or more processors 410, a memory 430, a communication interface 420, and a communication bus 440 that connects the various system components, including the memory 430 and the processor 410.

The communication bus 440 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.

Electronic devices typically include a variety of computer system readable media. Such media can be any available media that can be accessed by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.

Memory 430 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) and/or cache memory. The electronic device may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to communication bus 440 by one or more data medium interfaces. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the embodiments of the present application.

A program/utility having a set (at least one) of program modules may be stored in the memory 430, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules generally perform the functions and/or methods in the embodiments described herein.

The electronic device may also communicate with one or more external devices (e.g., keyboard, pointing device, display, etc.), with one or more devices that enable a user to interact with the electronic device, and/or with any device (e.g., network card, modem, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may occur through communication interface 420. Moreover, the electronic device may also communicate with one or more networks (e.g., local area network (Local Area Network; hereinafter: LAN), wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet) via a network adapter (not shown in FIG. 4) that may communicate with other modules of the electronic device via the communication bus 440. It should be appreciated that although not shown in fig. 4, other hardware and/or software modules may be used in connection with an electronic device, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter RAID) systems, tape drives, data backup storage systems, and the like.

The processor 410 executes various functional applications and data processing by running programs stored in the memory 430, for example, to implement the dynamic calibration method of the color printer provided in the embodiment of the present application.

The embodiment of the application also provides a computer readable storage medium, which stores computer instructions for causing the computer to execute the dynamic calibration method of the color printer provided by the embodiment of the application.

Any combination of one or more computer readable media may be utilized as the above-described computer readable storage media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory; EPROM) or flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations of the present application may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (Local Area Network; hereinafter: LAN) or a wide area network (Wide Area Network; hereinafter: WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Depending on the context, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection". Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, e.g., the division of the units is merely a logical function division, and may be implemented in other ways, e.g., as multiple units or

The components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed in connection with 5 may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

0 is described above as a preferred embodiment of the present application and is not intended to limit the present application, but any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A method for dynamically calibrating a color printer, comprising:

receiving a page to be printed;

judging whether the page to be printed needs color calibration or not;

and printing the page after the color calibration.

2. The dynamic calibration method according to claim 1, wherein performing color calibration on the page to be printed according to a preset color calibration algorithm to obtain a color calibrated page comprises:

3. The method for dynamic calibration according to claim 2, wherein performing color calibration on the first transformed page to obtain a second transformed page comprises:

acquiring a color correction table;

4. The method according to claim 1, wherein the determining whether the page to be printed requires color calibration comprises:

5. The dynamic calibration method according to claim 4, further comprising: and sending the color correction table to a sending end so that the sending end can perform color calibration by using the color correction table.

6. The method according to claim 4, wherein after determining that the page to be printed does not require color calibration, the received page does not need to be color calibrated in real time until a command requiring color calibration is received.

7. A dynamic calibration device for a color printer, comprising:

the page receiving module is used for receiving a page to be printed;

8. The dynamic calibration device of a color printer of claim 7, wherein the calibration module comprises:

9. An electronic device comprising a processor and at least one memory communicatively coupled to the processor, wherein the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the dynamic calibration method of any of claims 1-6.

10. A computer readable storage medium storing computer instructions that cause the computer to perform the dynamic calibration method according to any one of claims 1-6.