A fixing control method, image forming device and storage medium

Abstract

The present invention relates to the technical field of image forming devices, and more particularly to a fusing control method, an image forming device, and a storage medium. The method, applied to an image forming device, comprises: determining a page coverage ratio and a reference fusing temperature of a printed image; dividing the printed image into a plurality of page regions based on the content of the printed image; determining an actual print ratio corresponding to each of the page regions; determining a temperature compensation value for each page region based on the actual print ratios corresponding to each page region; determining an actual fusing temperature for each page region based on the reference fusing temperature and the temperature compensation value for each page region; and performing a fusing process on the printed image based on the actual fusing temperature corresponding to each page region.

Description

Technical Field

[0001] The present application relates to the technical field of image forming devices, and in particular to a fixing control method, an image forming device, and a storage medium. Background Art

[0002] Laser printers are a common image forming device that needs to go through multiple steps during printing, including charging, exposure, development, transfer, fixing, and cleaning. The fixing step involves heating and melting the toner on the paper using a heating roller, thereby fixing the resin in the toner on the paper and preventing it from falling off. The fixing temperature, or the temperature of the heating roller, affects the final fixing effect. When the fixing temperature is too low, the toner is not completely melted and fixed on the paper, resulting in poor fixing. When the fixing temperature is too high, the paper will curl due to the heat, causing a paper jam. Currently, image forming devices use a fixed fixing temperature for fixing printed images of the same paper size. This method may result in poor fixing effects in areas with a high printing rate in the printed image, while increasing the energy consumption for fixing in areas with a low printing rate. Summary of the Invention

[0003] In view of this, the present application provides a fixing control method, an image forming device and a storage medium, which divide the printed image into areas and set different fixing temperatures for different divided areas according to the printing rate, thereby improving the fixing effect and reducing energy consumption.

[0004] In a first aspect, an embodiment of the present invention provides a fixing control method, applied to an image forming apparatus, comprising:

[0005] Determine the page coverage of the printed image and the reference fusing temperature;

[0006] Dividing the printed image into a plurality of page areas according to the content of the printed image;

[0007] Determining an actual printing rate corresponding to each of the page areas;

[0008] determining a temperature compensation value for each page area according to actual printing rates corresponding to the plurality of page areas;

[0009] determining an actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area;

[0010] A fixing process is performed on the printed image according to the actual fixing temperature corresponding to each page area.

[0011] In a possible implementation, determining the page coverage of the printed image and the reference fixing temperature includes:

[0012] Receive print tasks;

[0013] Obtain n print portraits based on the print task; n is a positive integer ≥ 1;

[0014] Determining n page coverages corresponding to n printed images; the n reference page coverages correspond one-to-one to the n printed images;

[0015] Determine n reference fusing temperatures corresponding to the n page coverages; the n reference fusing temperatures correspond one-to-one to the n page coverages.

[0016] In a possible implementation, determining the page coverage of the printed image and the reference fixing temperature includes:

[0017] Receive print tasks;

[0018] Based on the printing task, m printing portraits are obtained; m is a positive integer ≥ 1;

[0019] Determining m page coverages corresponding to the m printed images respectively; the m page coverages correspond one-to-one to the m printed images;

[0020] A common fixing temperature of the m printed images is determined according to the m page coverages, and the common fixing temperature is used as the reference fixing temperature.

[0021] In a possible implementation, determining the actual printing rate corresponding to each of the page regions includes:

[0022] Obtaining the number of ink dots in each of the page areas corresponding to each of the printed images and the actual area of ​​each ink dot;

[0023] determining the actual ink coverage area of ​​each page area based on the number of ink dots in each page area and the actual area of ​​each ink dot;

[0024] Determining a theoretical ink coverage area of ​​the printed image based on the total number of ink dots and the area of ​​a unit ink dot of the printed image;

[0025] The actual printing rate of each of the page areas is determined according to the ratio of the actual ink coverage area of ​​each of the page areas to the theoretical ink coverage area of ​​the printed image.

[0026] In a possible implementation, determining the temperature compensation value of each page area according to the actual printing rates corresponding to the multiple page areas includes:

[0027] Acquire a first mapping relationship between a preset reference printing rate and a reference temperature compensation value;

[0028] Determining a temperature compensation value corresponding to each actual printing rate according to the first mapping relationship and each actual printing rate; wherein the reference printing rate corresponds to the page coverage rate in a one-to-one manner;

[0029] The temperature compensation value corresponding to each of the actual printing rates is used as the temperature compensation value corresponding to the page area.

[0030] In a possible implementation, determining the actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area includes:

[0031] Obtaining the reference fixing temperature corresponding to each actual printing rate according to a preset second mapping relationship between the page coverage and the reference fixing temperature and the first mapping relationship;

[0032] An algebraic sum between each of the temperature compensation values ​​and the corresponding reference fusing temperature is determined as the actual fusing temperature of each of the page areas.

[0033] In a possible implementation, after determining the actual printing rate corresponding to each of the page areas, the method further includes:

[0034] Determining a difference in actual printing rates between a plurality of adjacent page areas in the plurality of page areas corresponding to each printed image;

[0035] Merging a plurality of adjacent page regions whose difference values ​​are smaller than a first threshold;

[0036] The sum of the actual printing rates of several adjacent page areas is taken as the actual printing rate corresponding to the merged page area.

[0037] In a possible implementation, after determining the actual printing rate corresponding to each of the page areas, the method further includes:

[0038] Determine the algebraic sum of the actual printing rates of all page areas corresponding to each printed image;

[0039] If the algebraic sum of the actual printing rates of all page areas of a printed image is greater than 100%, a prompt message indicating that the printed image is dirty is issued.

[0040] In a second aspect, an embodiment of the present invention provides an image forming apparatus, comprising:

[0041] A first determining module is used to determine the page coverage of the printed image and a reference fixing temperature;

[0042] A division module, configured to divide the printed image into a plurality of page areas according to the content of the printed image;

[0043] An actual printing rate determination module, configured to determine an actual printing rate corresponding to each of the page areas;

[0044] a temperature compensation determination module, configured to determine a temperature compensation value for each page area according to actual printing rates corresponding to the plurality of page areas;

[0045] a fusing temperature determining module, configured to determine an actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area;

[0046] The execution module is used to perform a fixing process on the printed image according to the actual fixing temperature corresponding to each page area.

[0047] In a third aspect, an embodiment of the present invention provides an electronic device, including:

[0048] at least one processor; and

[0049] at least one memory in communication with the processor, wherein:

[0050] The memory stores program instructions that can be executed by the processor, and the processor can execute the method described in the first aspect by calling the program instructions.

[0051] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method described in the first aspect.

[0052] In this embodiment of the present invention, the printed image's page coverage is obtained and, based on the coverage, the printed image is divided into multiple areas, where different fusing temperatures are set for fusing. This allows for refined fusing temperature control, ensuring effective fusing in areas with high print coverage while reducing fusing energy consumption in areas with low print coverage, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0054] Figure 1 A flowchart of a fixing control method provided by an embodiment of the present invention;

[0055] Figure 2 A schematic diagram of page area division provided by an embodiment of the present invention;

[0056] Figure 3 A schematic diagram of a fixing principle provided by an embodiment of the present invention;

[0057] Figure 4 A schematic structural diagram of an image forming device provided by an embodiment of the present invention;

[0058] Figure 5 A schematic structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0059] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0060] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0061] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0062] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0063] In order to solve the defects of the prior art in which a fixed fusing temperature is used for the same type of paper, resulting in an inability to ensure image quality in areas with a high print rate, and a high waste of fusing energy in areas with a low print rate, the present invention provides a fusing control method that can perform fine-grained fusing control on different areas of an image according to the print rate. Figure 1 Flowchart of a fixing control method provided by an embodiment of the present invention. Figure 1 As shown in , the method includes:

[0064] Step 101 : determining the page coverage of the printed image and the reference fixing temperature.

[0065] Page coverage refers to the ratio of the ink / toner coverage area on a sheet of paper to the total paper area. The image forming device receives a print task from a print driver and analyzes the print image corresponding to the print task through data firmware to obtain the page coverage of the print image.

[0066] The reference fixing temperature can be determined based on the page coverage obtained above. Specifically, the image forming device first receives a print task issued by the user. Based on the print task, n corresponding print portraits are obtained, where n is a positive integer ≥ 1. Then, the n page coverages corresponding to the n print portraits are determined, and the n page coverages correspond one-to-one to the n print portraits. Then, the n reference fixing temperatures corresponding to the n page coverages are determined. The n reference fixing temperatures correspond one-to-one to the n page coverages. That is, each print portrait has a corresponding reference fixing temperature. When the page coverages between the n print portraits are different, the reference fixing temperatures between the n print portraits are also different.

[0067] In some embodiments, it can also be implemented that multiple print portraits correspond to the same page coverage. Specifically, after the image forming device receives the print task, it obtains m print portraits based on the print task, where m is a positive integer ≥1. Then, the m page coverages corresponding to the m print portraits are determined. The m page coverages correspond one-to-one to the m print portraits. Finally, the common fixing temperature of the m print portraits is determined based on the m page coverages, and the common fixing temperature is used as the reference fixing temperature of the m print portraits. Optionally, the average value of the m page coverages can be calculated, and the reference fixing temperature corresponding to the value can be determined based on the average value of the page coverages as the common fixing temperature of the m print portraits. Alternatively, the median of the m page coverages can be calculated, and the reference fixing temperature corresponding to the value can be determined based on the median of the page coverages as the common fixing temperature of the m print portraits. That is, the reference fixing temperatures of the m print portraits are the same.

[0068] A mapping relationship between different page coverages and different reference fusing temperatures (ie, the second mapping relationship described below) can be pre-established. Based on the mapping relationship and the page coverage of the printed image, the reference fusing temperature of the printed image can be obtained.

[0069] Table 1-1 shows part of the second mapping relationship between different page coverages and different reference fixing temperatures.

[0070] Page Coverage Reference fixing temperature (℃) (a-3)％ T1-15 (a-2)％ T1-10 (a-1)％ T1-5 a％ T1 (a+1)％ T1+5 (a+2)％ T1+10 (a+3)％ T1+15

[0071] Table 1-1

[0072] As shown in Table 1-1, as the page coverage increases, the corresponding reference fusing temperature also increases accordingly. For every 1% increase in page coverage, the reference fusing temperature increases by 5°C. This mapping relationship between page coverage and reference fusing temperature is not limited to that shown in Table 1-1 and can be set based on user needs and the performance adaptability of the image forming device.

[0073] Step 102: Divide the printed image into a plurality of page areas according to the content of the printed image.

[0074] The data firmware of the image forming device divides the printed image into a plurality of page areas along the paper feeding direction.

[0075] In one specific example, the data firmware of an image forming device parses a issued print task to perform region division. The image forming device can divide the print image into a header area, a footer area, and a body text area based on the print parameters of the print task corresponding to the print image. By parsing the print parameters of the print task, the data firmware can determine the positions of the header and footer parts, and then determine the corresponding header area from the print image based on the position of the header part. Furthermore, the image forming device can determine the corresponding footer area from the print image based on the position of the footer part. The image forming device can then determine the area of ​​the print image excluding the header and footer areas as the body text area. It should be noted that in some embodiments, the print image can include one or a combination of a header area, a footer area, and a body text area. That is, the print image can have only a body text area, without a header or footer area. Alternatively, it can have a header and body text area, without a footer area. Alternatively, it can have a footer and body text area, without a header area. It can even have a combination of a header area, a footer area, and a body text area.

[0076] The main text area can be further subdivided. Since the page coverage corresponding to the image content and the text content is quite different, the distribution information of the text and / or picture can be determined according to the printing parameters. The main text area is then divided into at least one sub-area according to the distribution information of the text and / or picture. The sub-area includes one or more combinations of text areas, picture areas and blank areas. For example, by parsing the printing parameters, it is obtained that the printed image contains a picture, and then the main text area contains a picture area. The upper boundary of the picture area can be determined according to the upper edge of the picture. The lower boundary of the picture area can be determined according to the lower edge of the picture. For the blank part in the text area that has neither text nor picture, the part can be determined as the blank area in the text area. The part that only includes text is determined as the text area. The part that includes both pictures and text can also be determined as the picture area.

[0077] Figure 2A schematic diagram of page area division provided by an embodiment of the present invention. Figure 2 As shown in the figure, the printed image only has the main text part, without the header part and the footer part. Therefore, the main text part is divided. First, the part where the picture above the printed image is located is divided into the picture area (i.e. Figure 2 The middle part with only text is divided into the text area (i.e. Figure 2 The blank area below is the blank area (i.e. Figure 2 The area shown in C).

[0078] Step 103: Determine the actual printing rate corresponding to each page area.

[0079] The actual print rate is determined by the actual toner / ink coverage that has been transferred to the paper. At this point, the printed image has completed transfer and is about to enter the fusing module for fixing. Before fusing, the actual toner or ink coverage on the paper is measured to determine the actual print rate for each page area.

[0080] Specifically, the image forming device can obtain the number of ink dots in each page area corresponding to each printed image and the actual area of ​​each ink dot. Then, the actual ink coverage area of ​​each page area is determined based on the number of ink dots in each page area and the actual area of ​​each ink dot. In addition, the theoretical ink coverage area of ​​each printed image is determined based on the total number of ink dots in each printed image and the unit ink dot area. The theoretical ink coverage area is different from the actual ink coverage area and is the product of the total number of ink dots in the entire page printed image and the unit ink dot area. The unit ink dot area is the area occupied by a unit ink dot on the paper. Finally, the actual printing rate of each page area is determined based on the ratio of the actual ink coverage area of ​​each page area to the theoretical ink coverage area of ​​the printed image. When the image forming device is fault-free, the sum of the actual ink coverage area of ​​each page area should be equal to the theoretical ink coverage area. The sum of the actual printing rates of each page area should be equal to 100%.

[0081] Step 104 : determining a temperature compensation value for each page area according to the actual printing rates corresponding to the plurality of page areas.

[0082] Before determining the temperature compensation value corresponding to each page area, a first mapping relationship between the reference printing rate and the reference temperature compensation value can be preset, and different reference printing rates are mapped to different reference temperature compensation values. Thereafter, the image forming device can obtain the first mapping relationship between the preset reference printing rate and the reference temperature compensation value when performing printing, and determine the temperature compensation values ​​corresponding to the actual printing rates based on the first mapping relationship and the actual printing rates. The reference printing rate corresponds to the page coverage rate one-to-one. Finally, the temperature compensation values ​​corresponding to the actual printing rates are used as the temperature compensation values ​​for the corresponding page areas. Table 1-2 is a first mapping relationship between a reference printing rate and a reference temperature compensation value provided in an embodiment of the present invention, which shows the mapping relationship between some reference printing rates and reference temperature compensation values.

[0083] Reference printing rate Reference temperature compensation value (℃) (b-3)％ △T-6 (b-2)％ △T-4 (b-1)％ △T-2 b％ △T (b+1)％ △T+2 (b+2)％ △T+4 (b+3)％ △T+6

[0084] Table 1-2

[0085] As shown in Table 1-2, the reference temperature compensation value increases with the reference printing rate. For example, if the reference printing rate changes by 1%, the reference temperature compensation value will increase or decrease by 2°C. Of course, the mapping relationship between the reference temperature compensation value and the reference printing rate can be customized based on user needs or the performance of the image forming device.

[0086] Step 105 : determining the actual fixing temperature of each page area according to the reference fixing temperature and the temperature compensation value of each page area.

[0087] Based on the first mapping relationship between the reference printing rate and the reference temperature compensation value in step 104, and the one-to-one correspondence between the reference printing rate and the page coverage, as well as the second mapping relationship between the page coverage and the reference fixing temperature, the reference fixing temperature corresponding to each actual printing rate can be obtained. Then, the algebraic sum between each temperature compensation value and the corresponding reference fixing temperature is determined. The algebraic sum between each temperature compensation value and the corresponding reference fixing temperature is determined as the actual fixing temperature of each page area. Specifically, the actual fixing temperature can be calculated using the formula T = A + B. Wherein, T is the actual fixing temperature of the page area, A is the reference fixing temperature of the printed image, and B is the temperature compensation value of the page area. For different printed images with the same page coverage, due to different text distribution and image distribution, the page areas after area division may not be the same, the actual printing rates may not be the same, and the final actual fixing temperatures may not be the same.

[0088] In a specific scenario, the printing task includes multiple printing portraits. Each printing portrait corresponds to a separate reference fixing temperature. The actual fixing temperature of the page area is the algebraic sum of the temperature compensation value corresponding to the page area and the reference fixing temperature corresponding to the printing portrait where the page area is located. For example, the printing task includes three printing portraits, and the page coverage of the three printing portraits is a, b, and c. The reference fixing temperatures corresponding to a, b, and c are A1, A2, and A3, respectively. The reference fixing temperatures of the three printing portraits are A1, A2, and A3, respectively. For the page area in the first printing portrait, its actual fixing temperature is A1+B. For the page area in the second printing portrait, its actual fixing temperature is A2+B. For the page area in the third printing portrait, its actual fixing temperature is A3+B. Among them, B is the temperature compensation value corresponding to the page area, and the compensation value is determined according to the actual printing rate of the page area.

[0089] In another specific scenario, the printing task includes multiple print portraits. All print portraits correspond to a common reference fixing temperature. The actual fixing temperature of the page area in each print portrait is the algebraic sum of the temperature compensation value corresponding to the page area and the common reference fixing temperature. For example, the printing task includes three print portraits, and the page coverage of the three print portraits is a, b, and c. Calculate the average value of a, b, and c, and record it as d. Then determine the reference fixing temperature A corresponding to d. The reference fixing temperature of the three print portraits is A. For the page area in the three print portraits, the actual fixing temperature is A+B, where B is the temperature compensation value corresponding to the page area, and the compensation value is determined according to the actual printing rate of the page area.

[0090] Step 106 , performing a fixing process on the printed image according to the actual fixing temperature corresponding to each page area.

[0091] For example, a printed image of A4 size is fixed. The data firmware analyzes that the page coverage rate is 40%. The printed image is divided into four page areas, namely area A, area B, area C, and area D, according to the content of the printed image. The actual printing rate of area A is a, the actual printing rate of area B is b, the actual printing rate of area C is c, and the actual printing rate of area D is d. The image forming apparatus determines that the actual fixing temperature of area A is T1, the actual fixing temperature of area B is T2, the actual fixing temperature of area C is T3, and the actual fixing temperature of area D is T4 according to the actual printing rate. The actual printing rates from low to high are d < c < b < a. Then the actual fixing temperatures of the four page areas from low to high are: T4 < T3 < T2 < T1. The fixing device uses different fixing temperatures for page areas with different actual printing rates for fixing. The higher the actual printing rate, the higher the actual fixing temperature. The lower the actual printing rate, the lower the actual fixing temperature. Through the above fixing control method, the fixing temperature of the local area segment of the printed image is finely controlled, improving the quality of the printed image while reducing power consumption.

[0092] Figure 3 FIG. is a schematic diagram of a fixing principle provided by an embodiment of the present invention. As Figure 3 shown in the figure, it includes a heating roller 301 located above, a halogen lamp 302 inside the heating roller 301, and a pressure roller 303 below. The paper 304 passes through between the heating roller 301 and the pressure roller 303 in the direction of the arrow. Taking Figure 2 the printed image shown in the figure as an example, the actual fixing temperatures corresponding to area A, area B, and area C are T1, T2, and T3 respectively. Area A, area B, and area C pass through the heating roller 301 in sequence. When a part of area A passes through the heating roller 301, the halogen lamp 302 is controlled to heat the heating roller 301 to the temperature of T1. Then, when a part of area B passes through the heating roller 301, the halogen lamp 302 is controlled to heat the heating roller 301 to the temperature of T2. Then, when a part of area C passes through the heating roller 301, the halogen lamp 302 is controlled to heat the heating roller 301 to the temperature of T3.

[0093] In some embodiments, for the same original document, due to the different sizes of the printing media selected by the user, the page areas after area division are not necessarily the same. At this time, the data firmware can divide the page areas according to the paper size. For continuous multi-page printing tasks, when there is a situation where the page coverage rate is almost 0 or there is a blank page, the fixing device can be controlled to fix at a lower fixing temperature or the fixing device can be controlled not to heat additionally, and the waste heat of the heating roller is used to fix this page.

[0094] In some embodiments, after the print image is divided into multiple page areas according to the content of the print image, adjacent page areas with similar actual printing rates can be merged to reduce the number of divided page areas, reduce the amount of data firmware calculations, reduce the change temperature compensation control, and improve the control efficiency of the fixing device. Specifically, the difference in the actual printing rates of several adjacent page areas in the multiple page areas corresponding to each print image can be determined first. Several adjacent page areas whose differences are less than a first threshold are merged, and the sum of the actual printing rates of the several adjacent page areas is used as the actual printing rate corresponding to the merged page area. Optionally, adjacent page areas with an actual printing rate difference of less than 0.5% can be merged. For example, the actual printing rates of two adjacent page areas are 19.4% and 19.6% respectively. The actual printing rate difference is 0.2%, which is less than the first threshold, such as 0.5%. Therefore, the two adjacent page areas are merged to obtain a merged page area, and the actual printing rate of the merged page area is 19.4% + 19.6% = 39%.

[0095] The actual print rate can also be used to identify areas of significant contamination on the paper. Specifically, the algebraic sum of the actual print rates for all page areas corresponding to each printed image can be determined. If the algebraic sum of the actual print rates for all page areas of a printed image exceeds 100%, the paper is determined to be significantly contaminated, and a message indicating the contamination of the printed image can be issued. Contamination may be caused by ink cartridge leakage or localized damage to the photosensitive roller surface.

[0096] For example, a print task includes two print images. The first print image is divided into four page areas. The second print image is divided into three page areas. The actual printing rates of the four page areas of the first print image are 10%, 30%, 50%, and 10%, respectively. Therefore, the algebraic sum of the actual printing rates of the four page areas of the first print image is 10% + 30% + 50% + 10% = 100%. The first print image does not have significant dirt. The actual printing rates of the three page areas of the second print image are 30%, 40%, and 35%, respectively. Therefore, the algebraic sum of the actual printing rates of the three page areas of the second print image is 30% + 40% + 35% = 105%. This shows that the algebraic sum of the actual printing rates of the page areas of the second print image is greater than 100%. Therefore, a prompt message is issued indicating that the second print image is dirty.

[0097] Corresponding to the above-mentioned fixing control method, an embodiment of the present invention provides an image forming apparatus. Figure 4 FIG. 1 is a schematic structural diagram of an image forming device provided by an embodiment of the present invention. Figure 4As shown in FIG, the image forming apparatus includes: a first determining module 401 , a dividing module 402 , an actual printing rate determining module 403 , a temperature compensation determining module 404 , a fixing temperature determining module 405 and an executing module 406 .

[0098] The first determining module 401 is used to determine the page coverage of the printed image and the reference fixing temperature.

[0099] The division module 402 is used to divide the printed image into multiple page areas according to the content of the printed image.

[0100] The actual printing rate determination module 403 is configured to determine the actual printing rate corresponding to each page area.

[0101] The temperature compensation determination module 404 is configured to determine a temperature compensation value for each page region according to actual printing rates corresponding to the plurality of page regions.

[0102] The fusing temperature determining module 405 is configured to determine the actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area.

[0103] The execution module 406 is configured to perform a fixing process on the printed image according to the actual fixing temperature corresponding to each page area.

[0104] Figure 4 The image forming apparatus provided in the illustrated embodiment can be used to implement the present invention. Figure 1-Figure 3 The technical solution of the method embodiment shown, its implementation principle and technical effects can be further referred to the relevant description in the method embodiment.

[0105] Figure 5 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, the electronic device may include at least one processor and at least one memory in communication with the processor, wherein the memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the instructions in this specification. Figure 1-3 The illustrated embodiment provides a fixing control method.

[0106] like Figure 5 As shown, the electronic device is implemented as a general-purpose computing device. Components of the electronic device may include, but are not limited to, one or more processors 510, a communication interface 520, and a memory 530, and a communication bus 540 connecting different system components (including the memory 530, the communication interface 520, and the processor 510).

[0107] Communication bus 540 represents one or more 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. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0108] Electronic devices typically include a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, removable and non-removable media.

[0109] Memory 530 may include computer-readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 530 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various embodiments of this specification.

[0110] A program / utility having a set (at least one) of program modules may be stored in memory 530. Such program modules include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. The program modules generally implement the functions and / or methods of the embodiments described herein.

[0111] The processor 510 executes various functional applications and data processing by running the programs stored in the memory 530, such as implementing the Figure 1-3 The illustrated embodiment provides a fixing control method.

[0112] The embodiment of this specification provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, wherein the computer instructions enable the computer to execute the present specification. Figure 1-3 The illustrated embodiment provides a fixing control method.

[0113] The above-mentioned computer-readable storage medium can adopt any combination of one or more computer-readable media. The computer-readable medium can 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 electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM) or flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or device.

[0114] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0115] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this specification. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout this specification, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0117] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of this specification includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of this specification belong.

[0118] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0119] It should be noted that the devices involved in the embodiments of this specification may include but are not limited to personal computers (Personal Computer; hereinafter referred to as: PC), personal digital assistants (Personal Digital Assistant; hereinafter referred to as: PDA), wireless handheld devices, tablet computers (Tablet Computer), mobile phones, MP3 displays, MP4 displays, etc.

[0120] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0121] In addition, the functional units in the various embodiments of this specification may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0122] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a connector, or a network device, etc.) or a processor to execute some steps of the method described in each embodiment of this specification. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (hereinafter referred to as ROM), a random access memory (hereinafter referred to as RAM), a magnetic disk or an optical disk, and other media that can store program code.

[0123] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

[0124] In this specification, reference can be made to the same or similar parts between the various embodiments. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A fixing control method, characterized in that: Applicable to image forming devices, including: Determine the page coverage of the printed image and the reference fusing temperature; Dividing the printed image into a plurality of page areas according to the content of the printed image; Determining an actual printing rate corresponding to each of the page areas; determining a temperature compensation value for each page area according to actual printing rates corresponding to the plurality of page areas; determining an actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area; performing a fixing process on the printed image according to the actual fixing temperature corresponding to each page area; The determining of the page coverage of the printed image and the reference fixing temperature includes: Receive print tasks; Obtain n print portraits based on the print task; n is a positive integer ≥ 1; Determining n page coverages corresponding to n printed images; the n reference page coverages correspond one-to-one to the n printed images; Determining n reference fusing temperatures corresponding to the n page coverages; the n fusing temperatures correspond one-to-one to the n page coverages; or, determining a common fixing temperature of the n printed images according to the n page coverages, and using the common fixing temperature as the reference fixing temperature; The determining of the actual printing rate corresponding to each of the page areas includes: Obtaining the number of ink dots in each of the page areas corresponding to each of the printed images and the actual area of ​​each ink dot; determining the actual ink coverage area of ​​each page area based on the number of ink dots in each page area and the actual area of ​​each ink dot; Determining a theoretical ink coverage area of ​​the printed image based on the total number of ink dots and the area of ​​a unit ink dot of the printed image; The actual printing rate of each of the page areas is determined according to the ratio of the actual ink coverage area of ​​each of the page areas to the theoretical ink coverage area of ​​the printed image.

2. The method according to claim 1, characterized in that The step of determining the temperature compensation value of each page area according to the actual printing rates corresponding to the plurality of page areas includes: Acquire a first mapping relationship between a preset reference printing rate and a reference temperature compensation value; Determining a temperature compensation value corresponding to each actual printing rate according to the first mapping relationship and each actual printing rate; wherein the reference printing rate corresponds to the page coverage rate in a one-to-one manner; The temperature compensation value corresponding to each of the actual printing rates is used as the temperature compensation value corresponding to the page area.

3. The method according to claim 2, characterized in that Determining the actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area includes: Obtaining the reference fixing temperature corresponding to each actual printing rate according to a preset second mapping relationship between the page coverage and the reference fixing temperature and the first mapping relationship; An algebraic sum between each of the temperature compensation values ​​and the corresponding reference fusing temperature is determined as the actual fusing temperature of each of the page areas.

4. The method according to claim 1, wherein After determining the actual printing rate corresponding to each of the page areas, the method further includes: Determining a difference in actual printing rates between a plurality of adjacent page areas in the plurality of page areas corresponding to each printed image; Merging a plurality of adjacent page regions whose difference values ​​are smaller than a first threshold; The sum of the actual printing rates of several adjacent page areas is taken as the actual printing rate corresponding to the merged page area.

5. The method according to claim 4, characterized in that After determining the actual printing rate corresponding to each of the page areas, the method further includes: Determine the algebraic sum of the actual printing rates of all page areas corresponding to each printed image; If the algebraic sum of the actual printing rates of all page areas of a printed image is greater than 100%, a prompt message indicating that the printed image is dirty is issued.

6. An image forming apparatus, characterized in that: include: A first determining module is used to determine the page coverage of the printed image and a reference fixing temperature; A division module, configured to divide the printed image into a plurality of page areas according to the content of the printed image; An actual printing rate determination module, configured to determine an actual printing rate corresponding to each of the page areas; a temperature compensation determination module, configured to determine a temperature compensation value for each page area according to actual printing rates corresponding to the plurality of page areas; a fusing temperature determining module, configured to determine an actual fusing temperature of each page area according to the reference fusing temperature and the temperature compensation value of each page area; an execution module, configured to perform a fixing process on the printed image according to the actual fixing temperature corresponding to each page area; The first determining module is specifically configured to: Receive print tasks; Obtain n print portraits based on the print task; n is a positive integer ≥ 1; Determining n page coverages corresponding to n printed images; the n reference page coverages correspond one-to-one to the n printed images; determining n reference fusing temperatures corresponding to the n page coverages; the n fusing temperatures corresponding to the n page coverages in a one-to-one manner; or, determining a common fixing temperature of the n printed images according to the n page coverages, and using the common fixing temperature as the reference fixing temperature; The actual printing rate determination module is specifically used for: Obtaining the number of ink dots in each of the page areas corresponding to each of the printed images and the actual area of ​​each ink dot; determining the actual ink coverage area of ​​each page area based on the number of ink dots in each page area and the actual area of ​​each ink dot; Determining a theoretical ink coverage area of ​​the printed image based on the total number of ink dots and the area of ​​a unit ink dot of the printed image; The actual printing rate of each of the page areas is determined according to the ratio of the actual ink coverage area of ​​each of the page areas to the theoretical ink coverage area of ​​the printed image.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method according to any one of claims 1 to 5.

Images