WO2022028394A1 - 加热控制方法及装置、图像形成设备、存储介质 - Google Patents

加热控制方法及装置、图像形成设备、存储介质 Download PDF

Info

Publication number
WO2022028394A1
WO2022028394A1 PCT/CN2021/110222 CN2021110222W WO2022028394A1 WO 2022028394 A1 WO2022028394 A1 WO 2022028394A1 CN 2021110222 W CN2021110222 W CN 2021110222W WO 2022028394 A1 WO2022028394 A1 WO 2022028394A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
temperature
heater
duration
image
Prior art date
Application number
PCT/CN2021/110222
Other languages
English (en)
French (fr)
Inventor
李荣华
Original Assignee
珠海奔图电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海奔图电子有限公司 filed Critical 珠海奔图电子有限公司
Publication of WO2022028394A1 publication Critical patent/WO2022028394A1/zh
Priority to US18/164,564 priority Critical patent/US20230185220A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
    • G03G15/205—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature specially for the mode of operation, e.g. standby, warming-up, error
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5004—Power supply control, e.g. power-saving mode, automatic power turn-off
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/20—Details of the fixing device or porcess
    • G03G2215/2003—Structural features of the fixing device
    • G03G2215/2016—Heating belt
    • G03G2215/2035—Heating belt the fixing nip having a stationary belt support member opposing a pressure member
    • G03G2215/2038—Heating belt the fixing nip having a stationary belt support member opposing a pressure member the belt further entrained around one or more rotating belt support members

Definitions

  • the present invention relates to the technical field of image printing, and in particular, to a heating control method and device, an image forming apparatus, and a storage medium.
  • the heating voltage for fixing is the voltage provided by the printer connected to the commercial power supply, without any treatment on the power board, and there are voltage fluctuations. Among them, in the presence of voltage fluctuations, the fusing operation has the following effects:
  • the heating time will be shortened, and the paper will reach the preheating temperature for a long time before entering the nip area of the fixing unit, and the problem of image ghosting will occur when the paper passes through the nip area of the fixing unit.
  • the embodiment of the present invention provides a heating control method and device for an image forming apparatus, a storage medium, and an image forming apparatus.
  • the heating control method for an image forming apparatus provided by the embodiment of the present invention can determine whether the heater is in the current power supply environment The temperature change characteristics during the heating process or the voltage parameters of the current power supply, and the heating start time for the secondary heating of the preheated heater is determined according to the determined temperature change characteristics or the voltage parameters of the current power supply.
  • the fluctuation of the voltage adjusts the heating start time of the secondary heating of the heater in each fixing operation in real time, so as to avoid the problems of weak fixing or image ghosting mentioned in the background art.
  • An embodiment of the present invention provides a heating control method for an image forming apparatus, the image forming apparatus includes a fixing assembly and a power supply for supplying power to the fixing assembly, wherein the fixing assembly is provided with a heater and a device for detecting the temperature of the fixing assembly A temperature sensor, the method comprising:
  • the heating start time for secondary heating of the preheated heater determines the heating start time for secondary heating of the preheated heater, and trigger the secondary heating at the heating start time Heating is performed so that the temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the determining the voltage parameter of the current power supply environment of the heater includes:
  • the voltage parameter of the current power supply environment is determined according to the heating duration t 1 and the start-stop temperature difference ⁇ T 1 of the temperature interval.
  • the determining of the heating start time for secondary heating of the preheated heater according to the voltage parameter includes:
  • the heating start time is determined according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image.
  • the determining of the heating duration t3 for heating the current temperature to the second target temperature after preheating by the heater includes:
  • the determining the temperature change characteristic of the heating process of the heater under the current power supply environment includes:
  • a pre-stored table or a pre-stored simulation curve suitable for the current voltage characteristic is matched in the database, and the pre-stored table or pre-stored simulation curve is used as the temperature change characteristics, wherein the pre-stored table is used to store each temperature interval and the corresponding heating duration during the heating process of the heater under different power supply environments, and the pre-stored simulation curve is that the heater is heated under different power supply environments temperature change curve.
  • the determining of the heating start time for secondary heating of the preheated heater according to the temperature change characteristic includes:
  • the heating start time is determined according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image.
  • the determining of the heating start time according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image includes:
  • a time axis is established with the moving duration t 2 of the image to be fixed, and the heating duration t 3 of the secondary heating is inserted into the time axis, so that the heating duration t 3 is compared with the heating duration t 2
  • the set time ends earlier, and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the heating for the heater start time.
  • Embodiments of the present invention further provide a heating control device for an image forming apparatus, the device comprising:
  • An embodiment of the present invention further provides an image forming apparatus, which includes the above heating control device for the image forming apparatus.
  • Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the above heating control method for an image forming apparatus.
  • the heating start time for the secondary heating of the device is adjusted within a preset time period, for example, the temperature of the heater is set within a set time before the image to be fixed is moved to the fixing assembly. The fusing target temperature is reached.
  • the heating start time of the secondary heating of the heater in each fixing operation is adjusted in real time according to the variation of the actual voltage, so as to avoid the problem of weak fixing or image ghosting caused by the voltage fluctuation mentioned in the background art.
  • FIG. 1 is a schematic flowchart of a heating control method for an image forming apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another heating control method for an image forming apparatus provided by an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a heating control device for an image forming apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a holding area of a fixing assembly provided by an embodiment of the present invention.
  • the following takes a laser imaging type image forming apparatus as an example, the image forming apparatus is used to perform image forming tasks, such as generating, printing, receiving and sending image data; the following takes printing as an example for description, and is also referred to as a printer hereinafter for the convenience of explanation.
  • the printing process includes charging ⁇ exposure ⁇ development ⁇ transfer ⁇ fixing; the specific operation instructions are as follows:
  • the charging roller in the printer charges the surface of the photosensitive drum.
  • the internal processor of the printer After receiving the printing task sent by the terminal, the internal processor of the printer converts the pixels to be printed into exposure information in advance, and sends the exposure information to the laser scanning unit, which receives the exposure information sent by the internal processor of the printer. , and the photosensitive drum is exposed according to the exposure information, and an electrostatic latent image is formed on the surface of the charged photosensitive drum.
  • the photosensitive drum rotates to the position of the developing roller. Since the position where the laser scanning unit needs to form an image is exposed before, there will be a potential difference between the exposed position of the laser scanning unit and the developing roller, and the toner will be transferred to the exposure area.
  • the roller develops a toner image on the surface of the photosensitive drum.
  • the method of secondary transfer in which the photosensitive drum first transfers the monochrome toner image on its surface to the transfer belt, and then forms the color toner image on the transfer belt, and the color toner image is formed on the transfer belt.
  • the toner image is secondarily transferred to the paper by the secondary transfer roller to form an image to be fixed, that is, a toner image to be fixed is formed on the paper, and the paper bearing the toner image needs to pass through the fixing assembly.
  • the image to be fixed on it is fixed.
  • the paper bearing the image to be fixed passes through the nip area formed by the heat roller and the pressure roller in the fixing assembly, and heats and pressurizes the toner on the paper, so that the toner is melted and fixed on the paper.
  • the final printed image is formed.
  • the temperature required for heating in the heat roller is provided by a heater in the heat roller that has undergone secondary heating.
  • the heater may be a ceramic sheet, a halogen lamp, or IH heating (Induction Heating, induction heating).
  • IH heating Induction Heating, induction heating
  • the ceramic sheet is preheated, and the preheated ceramic sheet is heated for a second time before the fixing operation is performed to further perform the fixing operation.
  • the printer can obtain the power supply by directly connecting the mains. If the printer does not undergo internal voltage conversion, it supplies power to the ceramic chip of the printer. At this time, the voltage range is between 198V-235V. In the working environment of the printer (connecting to the same power supply), when other electrical appliances are connected or disconnected from the same power supply, the actual power supply voltage of the printer fluctuates.
  • the actual power supply voltage of the image forming device (such as a printer) is directly related to the heating time of the heater (such as a ceramic sheet) in the fixing assembly of the image forming device.
  • the assumption is verified by the calculation results for many times. Since the image forming device cannot identify its actual power supply voltage, the current voltage characteristics of the image forming device (such as the actual power supply voltage U 1 ) can be determined through the following calculation steps:
  • Step P1 determine the reference preheating time t 0 ;
  • Step P2 obtaining the actual warm-up time t 1 ;
  • Step P3 Calculate the actual power supply voltage U 1 according to the reference warm-up time t 0 and the actual warm-up time t 1 .
  • any heating stage during the heating process of the heater in the current power supply environment can be analyzed.
  • the data of any heating stage during the heating process of the heater under the current power supply environment is analyzed, including the analysis of the heating data directly or indirectly with the heater.
  • the temperature data collected by the temperature sensor connected to the ceramic sheet can be directly analyzed;
  • the temperature of the surface of the heating roller where the halogen lamp is located can be used for analysis.
  • the temperature data collected by the sensor is analyzed.
  • the heating circuit of the heater (ceramic sheet) in the fixing assembly is a pure resistance circuit, when the heater is heated from one temperature (such as the current temperature) to another temperature (such as the preheating target temperature) under different voltages with a fixed power
  • the required electric energy is the same.
  • the actual power supply voltage of the printer can be calculated by the electric energy formula and the ceramic sheet is stabilized at a certain voltage.
  • the reference preheating time t 0 required to heat up to the preheating target temperature.
  • the required electric energy W can be obtained through multiple tests under each working condition (the printer working condition when the printer is initially started, and the printer working condition after multiple printing operations)
  • the electric power W required to heat the current temperature to the preheating target temperature and establish a corresponding table according to the test data (storing the electrical energy W required to heat the ceramic sheet to raise the set temperature of the ceramic sheet under each working condition).
  • the actual preheating time t 1 for the ceramic sheet is obtained.
  • the left side of the formula is a certain set heating condition (it can be the above-mentioned preheating stage), U 0 represents the set voltage, R represents the resistance value of the ceramic sheet, and N 0 % represents the heating under the set heating condition.
  • the power percentage, t 0 represents the heating time for the heater to be heated under the set voltage environment.
  • the right side of the formula can be any actual heating condition (the same preheating stage as the left side of the formula can be selected, that is, the starting and ending temperatures of heating are determined to be the same),
  • U 1 represents the actual power supply voltage
  • t 1 represents the actual preheating time
  • N 0 % , N 1 % respectively represent the heating power percentage of the corresponding heating stage
  • K 1 , K 2 represent the heat loss coefficients, which can be determined through multiple experiments.
  • the actual power supply voltage U 1 is obtained by calculation according to formula 2.
  • the embodiment of the present invention provides a heating control method for an image forming apparatus. Specifically, the method is a method that does not add circuit changes in the image forming apparatus. A method of heating a heater of a fixing assembly in an image forming apparatus is provided.
  • FIG. 1 is a schematic flowchart of a heating control method for an image forming apparatus according to an embodiment of the present invention. As shown in FIG. 1 , the heating control method includes:
  • Step 101 when the image forming apparatus is powered on, wakes up from sleep, or receives a task to be processed, preheating the heater and heating it to a first target temperature (preheating target temperature);
  • Step 102 Determine the voltage parameter of the current power supply of the heater
  • Step 103 Determine the heating start time for the secondary heating of the preheated heater according to the voltage parameter of the current power supply, and trigger the secondary heating at the heating start time, so that all The temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly. For example, to determine the heating start time for the second heating of the heater that has been preheated for the last time, S101-S103 may also be executed once after each startup.
  • This step 102 can be implemented by the following steps:
  • Step 1021 Determine the heating duration t 1 corresponding to any temperature interval in the heating process of the heater under the current power supply environment
  • Step 1022 Determine the difference ⁇ T 1 between the start and end temperatures T N1 and T N2 of the temperature interval;
  • Step 1023 Determine the voltage parameter of the current power supply environment according to the heating duration t 1 and the start and end temperature difference ⁇ T 1 of the temperature interval.
  • the heater can be a ceramic plate, halogen lamp or IH heating (Induction Heating, induction heating). For example, after preheating the ceramic sheet in the fixing assembly of the printer, the preheating heating duration t 1 is obtained.
  • the start and end temperatures T N1 and T N2 of the temperature interval are the preheating start heater temperature and the first heater temperature of the preheating stage, respectively.
  • a target temperature preheat target temperature
  • the difference ⁇ T 1 between the start and end temperatures T N1 and TN2 of the preheating stage can be determined, and after preheating the ceramic sheet in the fixing assembly of the printer, the preheating heating duration t 1 is obtained, and the temperature difference ⁇ T is determined.
  • the first energy consumption for heating the heater (ceramic sheet) from T N1 to T N2 can be determined by the temperature difference ⁇ T 1 .
  • the specific heat capacity C of the heater (ceramic sheet) can be determined in advance, and then the first energy consumption Q can be determined according to the specific heat capacity C of the heater (ceramic sheet) and the temperature difference ⁇ T 1 , which takes into account the There is a loss of energy in the heating stage, and the first energy consumption Q may include the normal energy required for heating the heater (ceramic sheet) from TN1 to TN2 and the energy loss.
  • the voltage parameters for example, the actual power supply voltage U 1 ) under the current power supply environment can be calculated;
  • the actual supply voltage U 1 can be calculated by the following formula:
  • R represents the resistance value of the ceramic sheet (predicted)
  • U 1 represents the actual supply voltage
  • t 1 represents the obtained preheating heating time
  • N 1 % represents the percentage of heating power in the preheating stage (predicted)
  • K represents the heat loss coefficient (prediction).
  • the actual power supply voltage U1 is calculated according to formula 2 , and the actual power supply voltage U1 is used as the current power supply. voltage parameters.
  • this step 102 can be further implemented by the following operation steps:
  • Step 1021 Determine the heating duration t 1 corresponding to any temperature interval in the heating process of the heater under the current power supply environment
  • Step 1022 the heating duration t 0 corresponding to the above-mentioned temperature interval during the heating process of the heater under the standard voltage U 0 ;
  • Step 1023 Calculate the actual power supply voltage U 1 of the heater under the current power supply environment according to the following formula, and use the actual power supply voltage U 1 as the voltage parameter of the current power supply:
  • the heater can be a ceramic plate, halogen lamp or IH heating (Induction Heating, induction heating). For example, after preheating the ceramic sheet in the fixing assembly of the printer, the preheating heating duration t 1 is obtained.
  • the heating power for preheating the ceramic sheet can also be determined (generally, it is full power heating in the preheating stage) , Since the heating circuit in the fixing assembly is a pure resistance circuit, the heater is heated from one temperature (such as the current temperature) to another temperature ( For example, the electric energy required for preheating the target temperature) is the same.
  • the actual power supply voltage of the printer can be calculated by the electric energy formula to be stable at the standard voltage.
  • the required electric energy W can be obtained through multiple tests under each working condition (the printer working condition when the printer is initially started, and the printer working condition after multiple printing operations)
  • the electric power W required to heat the current temperature to the preheating target temperature and establish a corresponding table according to the test data (storing the electrical energy W required to heat the ceramic sheet by a fixed power to raise the set temperature of the ceramic sheet under each working condition).
  • the actual power supply voltage under the current power supply environment can be calculated
  • U 0 represents the set voltage (for example, the standard voltage 220V is selected)
  • R represents the resistance value of the ceramic sheet
  • t 0 represents the preheating time under the set working condition (pre-calculated)
  • U 1 represents the actual power supply voltage
  • t 1 represents the actual preheating time
  • N 0 % and N 1 % respectively represent the heating power percentage (predicted ) of the corresponding heating stage
  • K 1 and K 2 represent the heat loss coefficients, which can be passed through multiple times. test to determine.
  • the actual power supply voltage U1 is calculated according to formula 2 , and the actual power supply voltage U1 is used as the current power supply. voltage parameters.
  • Step 103 can be further implemented by the following operation steps:
  • Step 1031 Determine the moving duration t 2 of the image to be fixed moving to the fixing assembly
  • Step 1032 Determine the temperature difference ⁇ T 2 between the second target temperature and the current temperature after the heater is preheated
  • Step 1033 Determine the heating duration t 3 for heating the current temperature to the second target temperature after the heater is preheated
  • Step 1034 Determine the heating start time according to the relationship between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image, and trigger the secondary heating at the heating start time , so that the temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the image forming apparatus After warming up the heater, wait for the image forming apparatus to finish processing the image. For example, after the internal processor of the printer receives the print job sent by the user terminal, it converts the pixels that need to be printed out in the print job into exposure information, and the exposure unit in the printer exposes the photosensitive drum, forming static electricity on the surface of the photosensitive drum. For the latent image, the photosensitive drum rotates to the position of the developing roller. Since the position where the exposure unit needs to form an image is exposed, there will be a potential difference between the exposed position of the exposure unit and the developing roller, and the toner will be transferred to the exposure area.
  • the image is transferred to the transfer belt with the rotation of the photosensitive drum, the image of the transfer belt rotates to the position of the secondary transfer roller, and the image is transferred to the paper, the paper passes through the fixing assembly, the fixing assembly Fuse and fix the toner image to the paper.
  • a moving duration t 2 for the image to be fixed to move to the nip area of the fixing assembly wherein, during the movement of the paper to the nip area of the fixing assembly, the foremost edge in the moving direction of the paper moves to the fixing assembly
  • the time of the nip area is predetermined. Since the distance between the top contour of the image to be fixed and the above-mentioned edge of the paper in each printing task is different, the actual moving time of the image to be fused to the nip area of the fixing assembly is different.
  • t 2 is determined by the relative distance between the top contour of the fixed image and the above-mentioned edge of the paper. However, the above-mentioned relative distance can be determined in the process of the above-mentioned image processing by the printer, and it can be further calculated that the to-be-fixed image moves to the fixing assembly clamping The actual moving duration t 2 of the zone.
  • the heater in the fixing assembly After the heater in the fixing assembly completes the preheating, it is necessary to wait for the internal processor of the printer to complete the corresponding image processing operation. Because the processing efficiency of the internal processors in different printers is different, and the different printing tasks received by the printer , its task volume is also different, therefore, the waiting time after the heater completes preheating is affected by the above-mentioned different factors. Therefore, after the heater is preheated, it is necessary to determine the temperature of the heater in real time, and then the temperature difference ⁇ T 2 between the second target temperature (fixing target temperature) and the current temperature after the heater is preheated can be determined in real time.
  • the specific heat capacity C of the heater (ceramic sheet) can be determined in advance, and then the first energy consumption Q can be determined according to the specific heat capacity C of the heater (ceramic sheet) and the temperature difference ⁇ T 1 , which takes into account the There is a loss of energy in the heating phase, and the first energy consumption Q may include the normal energy required and the lost energy to heat the heater (ceramic sheet) from TN1 to TN2 .
  • the heating duration t 3 of the secondary heating can be calculated by the above formula 3 :
  • the heating start time is determined according to the relationship between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image, and the secondary heating is triggered at the heating start time, so that the The temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the heating start time for the heater is determined according to the relationship between the heating time t 3 determined in step 1033 and the actual moving duration t 2 of the image to be fixed determined in step 1031 , specifically the moving duration t 2 of the image to be fixed.
  • a time axis is established, and the heating duration t 3 of the secondary heating is inserted into the time axis, so that the heating duration t 3 ends earlier than the moving duration t 2 by a set time (for example, 0.5s earlier) , and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the heating start time for the heater.
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature within the set time before the to-be-fixed image is moved to the nip area of the fixing assembly.
  • step 103 can be further implemented by the following operation steps:
  • Step 1031 Determine the moving duration t 2 of the image to be fixed moving to the fixing assembly
  • Step 1032 Determine the temperature difference ⁇ T 2 between the second target temperature and the current temperature after the heater is preheated
  • Step 1033 According to the actual supply voltage U 1 matching the sum applicable to the voltage U 1 to a pre-stored table or a pre-stored simulation curve, input the temperature difference ⁇ T 2 into a pre-stored table or map the start and end temperatures of the secondary heating stage In the pre-stored simulation curve, the heating duration t 3 of the secondary heating can be further determined;
  • Step 1034 Determine the heating start time according to the relationship between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image, and trigger the secondary heating at the heating start time , so that the temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the image forming apparatus After warming up the heater, wait for the image forming apparatus to finish processing the image. For example, after the internal processor of the printer receives the print job sent by the user terminal, it converts the pixels that need to be printed out in the print job into exposure information, and the exposure unit in the printer exposes the photosensitive drum, forming static electricity on the surface of the photosensitive drum. For the latent image, the photosensitive drum rotates to the position of the developing roller. Since the position where the exposure unit needs to form an image is exposed, there will be a potential difference between the exposed position of the exposure unit and the developing roller, and the toner will be transferred to the exposure area.
  • the image is transferred to the transfer belt with the rotation of the photosensitive drum, the image of the transfer belt rotates to the position of the secondary transfer roller, and the image is transferred to the paper, the paper passes through the fixing assembly, the fixing assembly Fuse and fix the toner image to the paper.
  • a moving duration t 2 for the image to be fixed to move to the nip area of the fixing assembly wherein, during the movement of the paper to the nip area of the fixing assembly, the foremost edge in the moving direction of the paper moves to the fixing assembly
  • the time of the nip area is predetermined. Since the distance between the top contour of the image to be fixed and the above-mentioned edge of the paper in each printing task is different, the actual moving time of the image to be fused to the nip area of the fixing assembly is different.
  • t 2 is determined by the relative distance between the top contour of the fixed image and the above-mentioned edge of the paper. However, the above-mentioned relative distance can be determined in the process of the above-mentioned image processing by the printer, and it can be further calculated that the to-be-fixed image moves to the fixing assembly clamping The actual moving duration t 2 of the zone.
  • the heater in the fixing assembly After the heater in the fixing assembly completes the preheating, it is necessary to wait for the internal processor of the printer to complete the corresponding image processing operation. Because the processing efficiency of the internal processors in different printers is different, and the different printing tasks received by the printer , its task volume is also different, therefore, the waiting time after the heater completes preheating is affected by the above-mentioned different factors. Therefore, after the heater is preheated, it is necessary to determine the temperature of the heater in real time, and then the temperature difference ⁇ T 2 between the second target temperature (fixing target temperature) and the current temperature after the heater is preheated can be determined in real time.
  • the heating value set according to the actual power supply voltage U 1 and the secondary heating stage The power is matched in the database to obtain the corresponding pre-stored table or pre-stored simulation curve.
  • the pre-stored table is used to store each temperature interval and the corresponding heating duration during the heating process of the heater under different power supply environments
  • the pre-stored simulation curve is the temperature at which the heater is heated under different power supply environments Curve.
  • the determined data (temperature difference ⁇ T 2 ) is input into the pre-stored LUT table, and the corresponding heating duration t 3 of the secondary heating is determined.
  • the heating start time is determined according to the relationship between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image, and the secondary heating is triggered at the heating start time, so that the The temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the heating start time for the heater is determined according to the relationship between the heating time t 3 determined in step 1033 and the actual moving duration t 2 of the image to be fixed determined in step 1031 , specifically the moving duration t 2 of the image to be fixed.
  • a time axis is established, and the heating duration t 3 of the secondary heating is inserted into the time axis, so that the heating duration t 3 ends earlier than the moving duration t 2 by a set time (for example, 0.5s earlier) , and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the heating start time for the heater.
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature within the set time before the to-be-fixed image is moved to the nip area of the fixing assembly.
  • FIG. 2 is a schematic flowchart of another heating control method for an image forming apparatus according to an embodiment of the present invention.
  • the above-mentioned another heating control method is a heating method provided in an ideal environment without considering the heating power percentage and energy loss.
  • the control method specifically the heating control method includes a first heating process, as shown in Figure 2, the first heating process includes:
  • Step 201 preheating the heater of the fixing assembly in the image forming apparatus, so that the heater is heated to a first target temperature (preheating target temperature);
  • Step 202 Determine the temperature change characteristics of the heater during the heating process under the current power supply environment
  • Step 203 Determine a heating start time for the secondary heating of the preheated heater according to the temperature change characteristics, and trigger the secondary heating at the heating start time, so that the The temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • Step 202 can be implemented by the following steps:
  • Step 2021 Determine the heating duration t 1 corresponding to any temperature interval during the heating process of the heater under the current power supply environment
  • Step 2022 Determine the temperature rise rate of the heater during the heating process under the current power supply environment according to the start and end temperature difference ⁇ T 1 of the temperature interval and the heating duration t 1 and the temperature rise rate as the temperature change characteristics.
  • the preheating stage for preheating the heater can be selected as the temperature range for analysis.
  • the actual preheating time t 1 taken by the heater from the start of preheating until the heater reaches the preheating target temperature is acquired.
  • the heater may be a ceramic plate, a halogen lamp or IH heating (Induction Heating, induction heating), the above-mentioned heating process may be heating with a fixed power, and the preheating target temperature is a preset value.
  • the temperature of the heater before preheating is related to the ambient temperature, that is, the temperature of the heater before preheating is a non-constant value, not only that, but the actual power supply voltage of the image forming apparatus is also non-constant value, for example, in the printer operating environment
  • the actual power supply voltage of the printer fluctuates, and the changed voltage also affects the actual preheating time taken by the heater from the start of preheating to the heater reaching the preheating target temperature. t 1 .
  • the two variables are: the temperature before the heater is preheated and the actual power supply voltage of the printer.
  • the accuracy of heating control in each fixing operation it is necessary to determine the actual preheating time t 1 of the heater once each time the heater is preheated.
  • the temperature rise rate during the heating process of the heater can be determined, Specifically, the temperature rise rate can be and the temperature rise rate as the temperature change characteristics.
  • Step 203 can be implemented by the following steps:
  • Step 2031 Determine the moving duration t 2 of the to-be-fixed image moving to the fixing assembly
  • Step 2032 Determine the temperature difference ⁇ T 2 between the second target temperature and the current temperature after the heater is preheated
  • Step 2033 According to the temperature rise rate and the temperature difference ⁇ T 2 to determine the heating duration t 3 of the secondary heating;
  • Step 2034 Determine the heating start time according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the image to be fixed.
  • the image forming apparatus After warming up the heater, wait for the image forming apparatus to finish processing the image. For example, after the internal processor of the printer receives the print job sent by the user terminal, it converts the pixels that need to be printed out in the print job into exposure information, and the exposure unit in the printer exposes the photosensitive drum, forming static electricity on the surface of the photosensitive drum. For the latent image, the photosensitive drum rotates to the position of the developing roller. Since the position where the exposure unit needs to form an image is exposed, there will be a potential difference between the exposed position of the exposure unit and the developing roller, and the toner will be transferred to the exposure area.
  • the image is transferred to the transfer belt with the rotation of the photosensitive drum, the image of the transfer belt rotates to the position of the secondary transfer roller, and the image is transferred to the paper, the paper passes through the fixing assembly, the fixing assembly Fuse and fix the toner image to the paper.
  • a moving duration t 2 for the image to be fixed to move to the nip area of the fixing assembly wherein, during the movement of the paper to the nip area of the fixing assembly, the foremost edge in the moving direction of the paper moves to the fixing assembly
  • the time of the nip area is predetermined. Since the distance between the top contour of the image to be fixed and the above-mentioned edge of the paper in each printing task is different, the actual moving time of the image to be fused to the nip area of the fixing assembly is different.
  • t 2 is determined by the relative distance between the top contour of the fixed image and the above-mentioned edge of the paper. However, the above-mentioned relative distance can be determined in the process of the above-mentioned image processing by the printer, and it can be further calculated that the to-be-fixed image moves to the fixing assembly clamping The actual moving duration t 2 of the zone.
  • the heater in the fixing assembly After the heater in the fixing assembly completes the preheating, it is necessary to wait for the internal processor of the printer to complete the corresponding image processing operation. Because the processing efficiency of the internal processors in different printers is different, and the different printing tasks received by the printer , its task volume is also different, therefore, the waiting time after the heater completes preheating is affected by the above-mentioned different factors. Therefore, after the heater is preheated, it is necessary to determine the temperature of the heater in real time, and then the temperature difference ⁇ T 2 between the second target temperature (fixing target temperature) and the current temperature after the heater is preheated can be determined in real time.
  • the heating duration t 3 required to heat the heater to the fixing target temperature can be determined, specifically, the required heating duration t3 is It should be noted that the temperature difference ⁇ T 2 is updated in real time according to the current temperature of the heater, and the required heating duration t 3 is updated in real time according to the temperature difference ⁇ T 2 .
  • the heating start time for the heater is determined according to the correlation between the heating time t 3 and the previously determined actual moving duration t 2 of the image to be fixed in step 2033, and specifically, it can be established based on the moving duration t 2 of the image to be fixed Time axis, insert the heating time t 3 of the secondary heating into the time axis, so that the heating time t 3 ends in advance by a set time (for example, 0.5s ahead of time) compared with the moving time t,
  • the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the heating start time for the heater.
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature within the set time before the to-be-fixed image is moved to the nip area of the fixing assembly.
  • the embodiment of the present invention further includes a second heating process, wherein after the image forming apparatus receives the task to be processed, it may be determined to enter the first heating process or the second heating process first, and the determination method may be that after receiving the image forming task (Receive a print job) and perform the following operations:
  • Step 01 Determine whether the current temperature of the heater is higher than the preheating target temperature
  • step 10 enter the first heating process
  • step 20 enter the second heating process.
  • the interval time between two adjacent printing tasks determines the current temperature of the heater, and the current temperature of the heater is determined based on the interval time between adjacent printing tasks.
  • the temperature of the heater drops below the preheat target temperature
  • the second heating process includes the following steps:
  • Step 301 Acquire the moving duration t2 of the to-be-fixed image in the current fixing process and the temperature rise speed in the last first heating process;
  • Step 302 Determine the heating start time of the heater according to the moving duration t 2 and the temperature rise speed of the image to be fixed acquired in Step 301;
  • Step 303 The heating start time determined in step 302 triggers the secondary heating of the heater.
  • the temperature rise rate in the last first heating process can be directly obtained, and it is further determined that the heater is heated to the fixing target in this heating process. Temperature required heating time t 3 .
  • the moving duration t 2 of the to-be-fixed image in the current fixing process is further determined.
  • the heating start of the heater corresponding to this heating process can be determined based on the same way in the first heating process
  • the heater is heated for a second time at the determined heating start time, so that the heater can reach the fixing target temperature for a set time before the to-be-fixed image moves to the nip area of the fixing assembly.
  • the current temperature of the heater can be regarded as the temperature after preheating. Determine the temperature difference value between the fixing target temperature and the current temperature of the heater (ceramic sheet) in real time, that is, the temperature difference ⁇ T 2 ;
  • the heating time t 3 of the secondary heating is determined according to the temperature difference ⁇ T 2 and the obtained temperature rise rate in the last first heating process,
  • a time axis is established with the moving time t2 of the image to be fixed, and the heating time t3 of the secondary heating is inserted into the time axis, so that the heating time t3 is compared with the moving time t2
  • the set time in advance ends, and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the starting point of the heating period t 3.
  • the heating start time of the heater ends, and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the starting point of the heating period t 3.
  • the heating start time of the heater The heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature for a set time before the to-be-fixed image moves to the nip area of the fixing assembly.
  • the paper carrying the image to be fixed moves to the nip area formed by the heat roller and the pressure roller in the fixing assembly.
  • the paper in the fixing film reaches the fixing target.
  • the high-temperature ceramic sheet can heat the toner on the paper, and the pressure roller presses the paper, so that the heated and melted toner is fixed on the paper to form a corresponding printed image.
  • the above technical solution can predict the actual power supply voltage according to the heating time, and adjust the fixing start time according to the predicted value without adding circuit changes.
  • the problem of weak fixing or ghosting can be solved at low cost.
  • FIG. 3 shows a schematic structural diagram of the heating control apparatus for an image forming apparatus provided by an embodiment of the present invention.
  • the heating Controls include:
  • the heating start time for secondary heating of the preheated heater determines the heating start time for secondary heating of the preheated heater, and trigger the secondary heating at the heating start time Heating is performed so that the temperature of the heater reaches the second target temperature within a set time before the image to be fixed is moved to the fixing assembly.
  • the determining the voltage parameter of the current power supply environment of the heater includes:
  • the voltage parameter U 1 of the current power supply environment is obtained by calculating according to the heating duration t 1 , the start and end temperature difference ⁇ T 1 of the temperature interval, and the first energy consumption.
  • the determining of the heating start time for secondary heating of the preheated heater according to the voltage parameter includes:
  • the heating start time is determined according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image.
  • the determining of the heating duration t3 for heating the current temperature to the second target temperature after preheating by the heater includes:
  • the heating duration t 3 is determined according to the second energy consumption and the voltage parameter U 1 of the current power supply environment.
  • the determining the temperature change characteristic of the heating process of the heater under the current power supply environment includes:
  • the pre-stored table is used to store the For each temperature interval and corresponding heating duration during the heating process of the heater under different power supply environments, the pre-stored simulation curve is a temperature change curve of the heater being heated under different power supply environments.
  • the determining of the heating start time for secondary heating of the preheated heater according to the temperature change characteristic includes:
  • the heating start time is determined according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image.
  • the determining of the heating start time according to the correlation between the heating duration t3 of the secondary heating and the moving duration t2 of the to-be-fixed image includes:
  • a time axis is established with the moving duration t 2 of the image to be fixed, and the heating duration t 3 of the secondary heating is inserted into the time axis, so that the heating duration t 3 is compared with the heating duration t 2
  • the set time ends earlier, and the starting point of the heating period t 3 is determined according to the time length of the heating period t 3 in the time axis, and the starting point of the heating period t 3 is used as the heating for the heater start time.
  • FIG. 4 is a schematic structural diagram of an image forming apparatus provided by an embodiment of the present invention.
  • the image forming apparatus 100 is used to perform image forming tasks such as generating, printing, receiving and transmitting image data
  • examples of the image forming apparatus 100 include a printer, a scanner, a copier, a facsimile machine, and in a single apparatus A Multi-Functional Peripheral (MFP) that performs the above functions.
  • MFP Multi-Functional Peripheral
  • the image forming apparatus 100 includes photosensitive drums 101Y-K, charging rollers 102Y-K, developing rollers 103Y-K, a toner container 104Y-K, a transfer belt 105, a secondary transfer roller 106, a paper feeder Cassette 107, Manual Feed Tray 108, Pickup Roller 109, Transport Roller 110, Paper Detection Sensor 120, Laser Scanning Unit (LSU) 111, Heat Roller 112, Press Roller 113, Discharge Roller 114, and Discharge Tray 115 etc.
  • the process cartridges C-M respectively include photosensitive drums 101Y-K, charging rollers 102Y-K, developing rollers 103Y-K, and toner bins 104Y-K for containing toner.
  • LSU 111 is in the form of a single LSU including four beam paths.
  • the four charging rollers 102Y-K are used to charge the surfaces of the four photosensitive drums 101Y-K respectively.
  • the four optical paths of the LSU 111 respectively emit laser beams to form electrostatic latent images on the surfaces of the photosensitive drums 101Y-K.
  • the four developing rollers 103Y-K For developing and forming a toner image of one color on the surface of the photosensitive drums 101Y-K respectively, the image forming apparatus 100 adopts a secondary transfer method, that is, the four photosensitive drums 101Y-K sequentially transfer the toner images to the transfer image.
  • the color toner image formed on the transfer belt 105 is then secondarily transferred to the paper by the second transfer roller 106 .
  • the paper feed cassette 107 is used to store paper, and the pickup roller 109 is used to convey the stored paper to a conveyance path (ie, a paper path path hereinafter).
  • the conveying roller 110 is used to convey the sheet to the secondary transfer roller 106 .
  • the secondary transfer roller 106 transports the imaged paper to the nip between the heat roller 112 and the pressure roller 113.
  • the heat roller 112 and the pressure roller 113 are used to fix the toner image on the paper.
  • the heat roller 112 can be made of ceramic
  • the heat roller 112 and the pressing roller 113 convey the fixed sheets to the discharge roller 114, and the discharge roller 114 discharges the sheets to the discharge paper cassette 115 and stacks them.
  • FIG. 5 shows a schematic structural diagram of the holding area of the fixing assembly provided by the embodiment of the present invention.
  • the secondary transfer roller 106 transports the imaged paper P1 to the fixing assembly as shown in FIG. 5 , that is, the paper P1 moves to the fixing assembly.
  • the nip area between the heat roller 112 and the pressure roller 113, the heat roller 112 and the pressure roller 113 are used to fix the toner image on the paper P1, and the heat roller 112 can pass through the fixing film 112C to reach the ceramic sheet 112A with the target temperature of fixation
  • the toner image on the paper P1 is heated, and the heat roller 112 and the pressing roller 113 convey the fixed paper to the discharge roller 114, which discharges the paper to the discharge paper cassette 115 and stacks it.
  • the laser scanning unit 111 acquires the optical analog image signal of the original/source document through the exposure of the optical print head.
  • the paper detection sensor 120 is used to detect whether there is paper in the paper path where it is located.
  • the paper feeding box 107 is provided with a paper outlet, and the pickup roller 109 is specifically used to send the paper contained in the paper feeding box 107 from the paper outlet into the paper path for transfer requirements.
  • the image forming apparatus 100 and the image forming apparatus 100 also It includes a drive mechanism (not shown) for driving the pickup roller 109 to work, and the drive mechanism is a drive motor, which is used to drive the pickup roller 109 to move, so as to realize the pickup operation.
  • the driving mechanism 181 is electrically connected with the controller (not shown) of the image forming apparatus, so as to realize the working control of the driving mechanism by the controller.
  • the controller is electrically connected to the paper detection sensor 120, and the paper detection sensor sends the detection result information of whether there is paper on the paper path to the controller.
  • the image forming apparatus 100 further includes an operation panel (not shown) including an operation unit (not shown) composed of various keys and a touch panel-type display unit (not shown).
  • the printer when the printer receives the print task sent by the user terminal, the following operations are triggered:
  • the internal processor (such as SOC, System-on-a-Chip) of the image forming apparatus 100 performs corresponding image processing on the received image to be processed;
  • the heating control device determines whether the current temperature of the ceramic sheet 112A is higher than the preheating target temperature, and determines the heating process to be entered according to the comparison result.
  • the laser scanning unit 111 obtains the optical analog image signal of the original through the exposure of the optical print head, the four photosensitive drums 101Y-K generate images according to the optical analog image signal of the laser scanning unit 111, and the four photosensitive drums 101Y-K K sequentially transfers the toner images to the transfer belt 105, and then the color toner images formed on the transfer belt 105 are secondarily transferred to the paper by the second transfer roller 106, thereby completing the generation of the to-be-fixed image.
  • the moving duration t2 of the to-be-fixed image when the to-be-fixed image is moved to the clamping area of the fixing assembly can be determined according to the image information.
  • the way to further determine whether to enter the first heating process or the second heating process can be the following operations:
  • Step 01 Determine whether the current temperature of the heater is higher than the preheating target temperature
  • the temperature of the ceramic sheet 112A before preheating is acquired by the temperature sensor 112B in the fixing assembly. And trigger the preheating process for the ceramic sheet 112A.
  • the heating control device for the image forming apparatus controls the corresponding power supply of the fixing assembly to energize the pure resistance circuit in the fixing assembly, and heats the ceramic sheet 112A in the fixing assembly, so that the ceramic sheet 112A in the fixing assembly is heated.
  • the temperature of the sheet 112A reaches the preheat target temperature.
  • the actual preheating time t 1 taken by the ceramic sheet 112A from the start of preheating until the ceramic sheet 112A reaches the preheating target temperature is obtained through the internal timing unit of the printer.
  • the heating control device acquires the actual preheating time t 1 , and calculates the temperature difference between the preheating target temperature and the temperature before preheating of the ceramic sheet 112A, that is, the first temperature difference ⁇ T 1 .
  • the temperature rise rate during the heating process of the heater can be determined. Specifically, the temperature rise rate can be
  • the fixing operation is triggered.
  • the purpose of the embodiment of the present invention is that the ceramic sheet needs to be heated to the fixing target temperature within a set time before the paper P1 carrying the image to be fixed moves to the fixing assembly nip area. In order to achieve this purpose, it is necessary to adjust the heating start time of the ceramic sheet according to the moving duration t2 of the image to be fixed.
  • the specific operation is as follows:
  • the heating time t3 of the secondary heating is determined according to the second temperature difference ⁇ T2 and the temperature rise rate,
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature for a set time before the to-be-fixed image moves to the nip area of the fixing assembly.
  • the paper P1 carrying the image to be fixed moves to the nip area formed by the heat roller 112 and the pressing roller 113 as shown in FIG.
  • the ceramic sheet 112A in the fixing film 112C that reaches the fixing target temperature can heat the toner on the paper P1, and the pressing roller presses the paper, so that the toner melted by the heat is fixed on the paper P1, forming a The corresponding print image.
  • the heating time t 3 of the secondary heating is determined according to the second temperature difference ⁇ T 2 and the obtained temperature rise rate in the last first fixing process,
  • a time axis is established with the moving duration t2 of the image to be fixed, and the heating time t3 of the secondary heating is inserted into the time axis, so that the time t3 is earlier than the time t2 by 0.5 s ends, and the starting point of the time t 3 is determined according to the time length of the time t 3 in the time axis, and the starting point of the time t 3 is used as the heating start time for the heater.
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature for a set time before the to-be-fixed image moves to the nip area of the fixing assembly.
  • the paper P1 carrying the image to be fixed moves to the nip area formed by the heat roller 112 and the pressing roller 113 as shown in FIG.
  • the ceramic sheet 112A in the fixing film 112C that reaches the fixing target temperature can heat the toner on the paper P1, and the pressing roller presses the paper, so that the toner melted by the heat is fixed on the paper P1, forming a The corresponding print image.
  • the heating duration t 1 corresponding to any temperature interval during the heating process of the heater under the current power supply environment; determine the start and end temperatures T N1 and T of the temperature interval The difference ⁇ T 1 of N2 and the first energy consumption of heating from T N1 to T N2 ; according to the heating duration t 1 , the temperature difference ⁇ T 1 between the start and end of the temperature interval, and the first energy consumption, the voltage parameters of the current power supply environment are calculated and obtained U 1 .
  • the heating duration t 3 of the secondary heating can be further determined; a time axis is established with the moving duration t 2 of the to-be-fixed image, and the heating time t 3 of the secondary heating is inserted into the time axis , so that the time t3 ends 0.5s earlier than the time t2 , and the starting point of the time t3 is determined according to the time length of the time t3 in the time axis, and the time t3 The starting point is taken as the heating start time of the heater.
  • the heater is heated at the determined heating start time, so that the heater can reach the fixing target temperature for a set time before the to-be-fixed image moves to the nip area of the fixing assembly.
  • the paper P1 carrying the image to be fixed moves to the nip area formed by the heat roller 112 and the pressing roller 113 as shown in FIG.
  • the ceramic sheet 112A in the fixing film 112C that reaches the fixing target temperature can heat the toner on the paper P1, and the pressing roller presses the paper, so that the toner melted by the heat is fixed on the paper P1, forming a The corresponding print image.
  • Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the above heating control method for an image forming apparatus.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined. Or it can be integrated into another system, or some features can be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (Processor) to execute the methods described in the various embodiments of the present invention. some steps.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

一种用于图像形成设备的加热控制方法及装置、图像形成设备，方法包括：在图像形成设备开机、休眠唤醒或接收到待处理任务时，对加热器进行预热并加热至第一目标温度（步骤101）；确定加热器在当前电源环境下被加热过程的温度变化特性或当前电源的电压参数（步骤102）；根据温度变化特性或当前电源的电压参数，确定对经过预热的加热器进行二次加热的加热起始时间，并在加热起始时间触发二次加热，以使加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度（步骤103）。通过根据实际电压的变动实时调整每次定影操作中对加热器的加热起始时间，以避免现有技术中出现的定影不牢或图像重影的问题。

Description

加热控制方法及装置、图像形成设备、存储介质 技术领域
本发明涉及图像打印技术领域，尤其涉及一种加热控制方法及装置、图像形成设备、存储介质。
背景技术
打印机打印过程中存在定影操作，具体为当纸张送到定影组件夹持区时，碳粉受到热辊表面的热力而熔化，同时受到压辊的压力而粘附在纸上。定影的加热电压是打印机连接市电所提供的电压，没有经过电源板任何处理，存在电压波动。其中，在存在电压波动的情况下，对定影操作存在以下影响：
电压过低，加热时间会变长，纸张进入定影组件夹持区时，没有达到加热的目标温度，会出现定影不牢的问题；
如果电压过高，加热时间会变短，纸张进入定影组件夹持区前，提前较长时间达到预热温度，在纸张经过定影组件夹持区时会出现图像重影的问题。
申请内容
本发明实施例提供一种用于图像形成设备的加热控制方法及装置、存储介质、图像形成设备，本发明实施例提供的用于图像形成设备的加热控制方法可以确定加热器在当前电源环境下被加热过程中的温度变化特性或当前电源的电压参数，并根据所确定的温度变化特性或当前电源的电压参数确定对经过预热的加热器进行二次加热的加热起始时间，通过根据实际电压的变动实时调整每次定影操作中对加热器二次加热的加热起始时间，以避免背景技术中提及的定影不牢或图像重影的问题。
本发明实施例提供一种用于图像形成设备的加热控制方法，所述图像形成设备包括定影组件和向所述定影组件供电的电源，所述定影组件中设置有加热器和检测定影组件温度的温度传感器，所述方法包括：
在图像形成设备开机、休眠唤醒或接收到待处理任务时，对所述加热器进行预热并加热至第一目标温度；
确定所述加热器在当前电源环境下被加热过程的温度变化特性或所述当前电源的电压参数；
根据所述温度变化特性或所述当前电源的电压参数，确定对经过所述预热的所述加热器进行二次加热的加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
进一步地，所述确定所述加热器的当前电源环境的电压参数包括：
确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t1、所述温度区间的起止温度T N1与T N2的差值ΔT 1；
根据所述加热时长t 1、所述温度区间的起止温度差值ΔT 1确定所述当前电源环境的电压参数。
进一步地，所述根据所述电压参数确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
确定所述待定影图像移动至定影组件的移动时长t 2；
确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
进一步地，所述确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3包括：
确定所述第二目标温度与所述加热器预热后当前温度的温度差值ΔT 2；根据所述温度差值ΔT 2确定所述加热器处于当前电源环境的电压参数时，由所述加热器预热后当前温度加热至所述第二目标温度对应的加热时长t 3。
进一步地，所述确定所述加热器在当前电源环境下被加热过程的温度变化特性包括：
确定所述当前电源环境的当前电压特性；
确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t 1、所述温度区间的起止温度T N1与T N2的差值ΔT 1；
根据所述温度区间的起止温度T N1与T N2的差值ΔT 1，在数据库中匹配适用于当前电压特性的预存表格或预存模拟曲线，将所述预存表格或预存模拟曲线作为所述温度变化特性，其中，所述预存表格用于存储所述加热器在不同电源环境下被加热过程中各温度区间以及对应的加热时长，所述预存模拟曲线为所述加热器在不同电源环境下被加热的温度变化曲线。
进一步地，所述根据所述温度变化特性确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
确定所述待定影图像移动至定影组件的移动时长t 2；
根据匹配得到的所述预存表格或所述预存模拟曲线确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
进一步地，所述根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间包括：
以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时长t 3插入所述时间轴中，以使所述加热时长t 3相比于所述加热时长t 2提前所述设定时间结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t 3的起点作为对所述加热器的加热起始时间。
本发明实施例还提供一种用于图像形成设备的加热控制装置，所述装置包括：
处理器和存储器，所述存储器用于存储至少一条指令，所述指令由所述处理器加载并执行时以实现上述用于图像形成设备的加热控制方法。
本发明实施例还提供一种图像形成设备，图像形成设备包括上述用于图像形成设备的加热控制装置。
本发明实施例还提供一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现上述用于图像形成设备的加热控制方法。
通过上述技术方案，可以确定加热器在当前电源环境下被加热过程中的温度变化特性或当前电源的电压参数，并根据所确定的温度变化特性或当前电源的电压参数确定对经过预热的加热器进行二次加热的加热起始时间。最终通过调整对加热器二次加热的加热起始时间以实现在预设的时间段内完成对加热器的加热，如，在加热器的温度在待定影图像移动至定影组件前设定时间内达到定影目标温度。通过根据实际电压的变动实时调整每次定影操作中对加热器二次加热的加热起始时间，以避免背景技术中提及的电压波动导致的定影不牢或图像重影的问题。
附图说明
图1为本发明实施例提供的用于图像形成设备的一种加热控制方法流程示意图；
图2为本发明实施例提供的用于图像形成设备的另一种加热控制方法流程示意图；
图3为本发明实施例提供的用于图像形成设备的加热控制装置的结构示意图；
图4为本发明实施例提供的图像形成设备的结构示意图；
图5是本发明实施例提供的定影组件加持区的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
打印流程说明：
以下以激光成像类图像形成设备为例，图像形成设备用于执行图像形成任务，诸如生成、打印、接收和发送图像数据；下文以打印为例进行说明，为了便于解释，下文也称打印机。其中打印流程包括充电→曝光→显影→转印→定影；具体操作说明如下：
关于充电操作
打印机中的充电辊为感光鼓表面进行充电。
关于曝光操作
打印机内部处理器在接收到终端发送的打印任务后，预先将需要打印出来的像素点转换为曝光信息，并将曝光信息发送至激光扫描单元，该激光扫描单元接收打印机内部处理器发送的曝光信息，并根据该曝光信息对感光鼓进行曝光，在经过充电的感光鼓表面形成静电潜像。
关于显影操作
感光鼓旋转至显影辊位置，由于之前激光扫描单元需要形成图像的位置被曝光，这样激光扫描单元被曝光的位置就会和显影辊之间有电势差，碳粉就会被转移至曝光区域，显影辊在感光鼓表面上显影形成一个碳粉图像。
关于转印操作
如采用二次转印的方式，其中，感光鼓先将自身表面的单色碳粉图像转印到转印带上，然后在转印带上形成彩色碳粉图像，该转印带上形成彩色碳粉图像经二次转印辊二次转印到纸张上形成待定影图像即，在纸张上形成一幅由碳粉组成的待定影图像，承载待定影图像的纸张需经过定影组件，对纸张上的待定影图像进行定影。
定影操作说明：
承载待定影图像的纸张经过定影组件中的热辊和压辊形成的夹持区，对纸张上的碳粉加热加压，以使碳粉熔化并固定在纸张上。最终形成打印后的图像。其中热辊中加热所需温度由热辊中经过二次加热的加热器提供。其中该加热器可以为陶瓷片、卤素灯或IH加热(Induction Heating，感应加热)，以下以陶瓷片为例进行说明。
验证实际供电电压与加热时间存在直接关系的流程说明：
在打印机启动后或接收到打印任务后，会对陶瓷片进行预热，并在执行定影操作前对经过预热的陶瓷片进行二次加热，进一步执行定影操作。打印机工作时通过直接连接市电以获取供电电源，若打印机不经过内部电压转换，向打印机的陶瓷片供电，此时电压范围在198V-235V之间。在打印机的作业环境(连接同一供电电源)中，在出现有其他电器连接或断开该同一供电电源的情况下，打印机的实际供电电压出现波动。
首先设想图像形成设备(如打印机)的实际供电电压与对图像形成设备的定影组件中的加热器(如陶瓷片)的加热时间存在直接关系，根据以下通过多次试验计算实际供电电压，并根据多次的计算结果验证该设想，由于图像形成设备无法识别自身的实际供电电压，因此，可以通过以下计算步骤确定图像形成设备的当前电压特性(如实际供电电压U 1)：
步骤P1：确定参考预热时间t 0；
步骤P2：获取实际预热时间t 1；以及
步骤P3：根据参考预热时间t 0和实际预热时间t 1计算实际供电电压U 1。
需要说明的是，可以对加热器在当前电源环境下被加热过程中任一加热阶段的数据进行分析，例如，根据步骤P1-P3中的预热阶段的相应数据确定打印机的实际供电电压与陶瓷片的加热时间存在直接关系。
需要说明的是，对加热器在当前电源环境下被加热过程中任一加热阶段的数据进行分析，包括与加热器直接或者间接的加热数据进行分析。例如，对于加热器为陶瓷片对应的加热方式，可以直接通过陶瓷片上连接的温度传感器采集的温度数据进行分析；对于加热器为卤素灯对应的加热方式，可以通过卤素灯所在加热辊表面的温度传感器采集的温度数据进行分析。
关于步骤P1
由于定影组件中加热器(陶瓷片)的加热电路为纯电阻电路，通过固定功率在不同的电压下将加热器由一温度(如当前温度)加热至另一温度(如预热目标温度)时所需的电能相同，在确定当前温度加热到预热目标温度所需电能W和陶瓷片电阻值R，即可通过 电能公式计算得到打印机的实际供电电压稳定在某一电压的情况下将陶瓷片加热至预热目标温度所需的参考预热时间t 0。其中，该所需电能W可以通过多次试验得到各工况下(打印机初启动时的打印机工况、经过多次打印作业后的打印机工况)当前温度加热到预热目标温度所需电能W，并根据试验数据建立相应表格(存储各工况下加热陶瓷片以使陶瓷片上升设定温度所需的电能W)。
关于步骤P2
在当前任意工况下，对陶瓷片预热的加热阶段，获取对陶瓷片实际预热时间t 1。
关于步骤P3
根据能量守恒，不同电压所对应的所需电能满足以下公式一：
Figure PCTCN2021110222-appb-000001
其中，公式左侧为某一设定加热工况(可以为上述预热阶段)，U 0表示设定电压，R表示陶瓷片的电阻值，N 0％表示该设定加热工况下的加热功率百分比、t 0表示加热器在设定电压环境下被加热的加热时长。公式右侧可以为任一实际加热工况(可以选用与公式左侧相同的预热阶段，即确定加热起止温度相同)，U 1表示实际供电电压，t 1表示实际预热时间,N 0％、N 1％分别表示相应加热阶段的加热功率百分比，K 1、K 2表示热量损耗系数，该热量损耗系数K 1、K 2可以通过多次试验进行确定。
另外上述公式一和下文提及公式三，仅仅为了示意加热时长t 1、温度区间的起止温度T N1与T N2的差值ΔT 1，之间会影响到加热器温度变化特性；以及这些参数之间的关联关系，但是具体的计算公式，可能还会结合实际需求进行限制；例如加热过程中加热器的电阻值R也是会随时温度变化而变化。
当K1＝K2，R值变化忽略时，根据上述公式一可以进一步得到以下公式二：
Figure PCTCN2021110222-appb-000002
进一步地，在确定加热器的实际预热时间t 1和设定工况预热时间t 0的情况下，根据公式二计算得到实际供电电压U 1。
在经过多次计算试验后可以得到多组实际供电电压与实际预热时间的关系数据，可以根据该多组关系数据确定实际供电电压与实际预热时间时钟满足公式二中的函数关系，进而可以判定上述设想成立。
以上为通过多次试验验证该设想成立的过程，在此基础上本发明实施例提供一种用于图像形成设备的加热控制方法，具体地，该方法为在图像形成设备中不增加电路改动的情况下，提供的一种对图像形成设备中定影组件的加热器进行加热控制的方法。
图1为本发明实施例提供的用于图像形成设备的一种加热控制方法的流程示意图，如图1所示，该加热控制方法包括：
步骤101：在图像形成设备开机、休眠唤醒或接收到待处理任务时，对所述加热器进行预热并加热至第一目标温度(预热目标温度)；
步骤102：确定所述加热器的当前电源的电压参数；
步骤103：根据当前电源的电压参数，确定对经过所述预热的所述加热器进行二次加热的加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。例如，确定最近一次预热的加热器进行二次加热的加热起始时间，也可以是每次开机之后，执行一次S101-S103。
该步骤102可以通过以下步骤实现：
步骤1021：确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t 1；
步骤1022：确定温度区间的起止温度T N1与T N2的差值ΔT 1；
步骤1023：根据加热时长t 1、所述温度区间的起止温度差值ΔT 1确定当前电源环境的电压参数。
关于步骤1021
选定加热器在当前电源环境下被加热过程中的任一温度区间，可以选定对加热器进行预热的预热阶段作为分析的温度区间。该加热器可以为陶瓷片、卤素灯或IH加热(Induction Heating，感应加热)。例如，在对打印机的定影组件中的陶瓷片进行预热后，获取预热加热时长t 1。
关于步骤1022
加热器在当前电源环境下被加热过程中的任一温度区间为预热阶段的情况下，该温度区间的起止温度T N1与T N2即分别为预热阶段的预热开始加热器温度和第一目标温度(预热目标温度)。进而可以确定预热阶段的起止温度T N1与T N2的差值ΔT 1，在对打印机的定影组件中的陶瓷片进行预热后，获取预热加热时长t 1，在确定该温度差值ΔT 1和预热加热时长t 1的情况下，可以通过该温度差值ΔT 1确定将加热器(陶瓷片)由T N1加热至T N2的第一能量消耗。具体地可以为，可以预先确定该加热器(陶瓷片)的比热容C，进而可以根据加热器(陶瓷片)的比热容C和该温度差值ΔT 1确定该第一能量消耗Q，其中考虑到在加热阶段存在能量的损耗，该第一能量消耗Q可以包括将加热器(陶瓷片)由TN1加热至TN2的正常所需能量和损耗能量。
关于步骤1023
在确定将陶瓷片加热至预热目标温度所需的第一能量消耗Q后，即可计算当前电源环境下的电压参数(例如，实际供电电压U 1)；
根据能量守恒，可以通过以下公式计算实际供电电压U 1：
Figure PCTCN2021110222-appb-000003
其中，R表示陶瓷片的电阻值(预知)，U 1表示实际供电电压，t 1表示所获取的预热加热时长，N 1％表示预热阶段的加热功率百分比(预知)，K表示热量损耗系数(预知)。
进一步地，在确定加热器的实际预热时间t 1和参考预热时间t 0的情况下，根据公式二计算得到实际供电电压U 1，并将所述实际供电电压U 1作为所述当前电源的电压参数。
在实施例中，该步骤102还可以通过以下操作步骤进一步实现：
步骤1021：确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t 1；
步骤1022：所述加热器在标准电压U 0下被加热过程中的上述温度区间所对应的加热时长t 0；
步骤1023：根据以下公式计算得到所述加热器在当前电源环境下的实际供电电压U 1，并将所述实际供电电压U 1作为所述当前电源的电压参数：
Figure PCTCN2021110222-appb-000004
关于步骤1021
选定加热器在当前电源环境下被加热过程中的任一温度区间，可以选定对加热器进行预热的预热阶段作为分析的温度区间。该加热器可以为陶瓷片、卤素灯或IH加热(Induction Heating，感应加热)。例如，在对打印机的定影组件中的陶瓷片进行预热后，获取预热加热时长t 1。
关于步骤1022
在对打印机的定影组件中的陶瓷片进行预热后，获取预热加热时长t 1的情况下，还可以确定对陶瓷片进行预热时的加热功率(一般在预热阶段为全功率加热)，由于定影组件中的加热电路为纯电阻电路，通过固定功率(全功率、半功率或其他设定功率)在不同的电压下将加热器由一温度(如当前温度)加热至另一温度(如预热目标温度)时所需的电能相同，在确定当前温度加热到预热目标温度所需电能W和陶瓷片电阻值R，即可通过电能公式计算得到打印机的实际供电电压稳定在标准电压220V的情况下将陶瓷片加热至预热目标温度所需的参考预热时间t 0。其中，该所需电能W可以通过多次试验得到各工况下(打印机初启动时的打印机工况、经过多次打印作业后的打印机工况)当前温度加热到预热目标温度所需电能W，并根据试验数据建立相应表格(存储各工况下通过固定功率加热陶瓷片以使陶瓷片上升设定温度所需的电能W)。
关于步骤1023
在确定将陶瓷片加热至预热目标温度所需的参考预热时间t 0后，即可计算当前电源环境下的实际供电电压；
根据能量守恒，不同电压所对应的所需电能满足以下公式一：
Figure PCTCN2021110222-appb-000005
其中，U 0表示设定电压(例如选用标准电压220V)，R表示陶瓷片的电阻值，t 0表示设定工况下的预热时间(预先计算得到)，U 1表示实际供电电压，t 1表示实际预热时间，N 0％、N 1％分别表示相应加热阶段的加热功率百分比(预知)，K 1、K 2表示热量损耗系数，该热量损耗系数K 1、K 2可以通过多次试验进行确定。
另外上述公式一和下文提及公式三，仅仅为了示意加热时长t 1、温度区间的起止温度T N1与T N2的差值ΔT 1，之间会影响到加热器温度变化特性；以及这些参数之间的关联关系，但是具体的计算公式，可能还会结合实际需求进行限制；例如加热过程中加热器的电阻值R也是会随时温度变化而变化。
当K 1＝K 2，R值变化忽略时，根据上述公式一可以进一步得到以下公式二：
Figure PCTCN2021110222-appb-000006
进一步地，在确定加热器的实际预热时间t 1和参考预热时间t 0的情况下，根据公式二计算得到实际供电电压U 1，并将所述实际供电电压U 1作为所述当前电源的电压参数。
步骤103可以通过以下操作步骤进一步实现：
步骤1031：确定待定影图像移动至定影组件的移动时长t 2；
步骤1032：确定第二目标温度与加热器预热后当前温度的温度差值ΔT 2；
步骤1033：确定所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
步骤1034：根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
关于步骤1031
在对加热器完成预热后，等待图像形成设备完成对图像的处理。例如，当打印机的内部处理器接收到用户终端发出的打印作业后，将打印作业中需要打印出来的像素点转换为曝光信息，打印机中的曝光单元对感光鼓进行曝光，在感光鼓表面形成静电潜像，感光鼓旋转至显影辊的位置，由于之前曝光单元需要形成图像的位置被曝光，这样曝光单元被曝光的位置就会和显影辊之间有电势差，碳粉就会被转移至曝光区域，形成图像；图像随着感光鼓的旋转，被转印到转印带上，转印带的图像旋转到二次转印辊的位置，将图像转移到纸张上，纸张经过定影组件，定影组件将碳粉图像热熔并固定在纸张上。
在上述定影过程中，还存在待定定影图像移动至定影组件夹持区的移动时长t 2，其中，在纸张向定影组件夹持区移动的过程中，纸张移动方向最前端的边缘移动至定影组件夹持区的时间是预先确定的，由于每个打印任务中需要定影的图像的顶端轮廓相距纸张的上述边缘的距离各不相同，因此，待定影图像移动至定影组件夹持区的实际移动时长t 2，由定影的图像的顶端轮廓相距纸张的上述边缘的相对距离决定，然而，在打印机进行上述图像处理的过程中可以确定上述相对距离，进一步可以计算得到待定影图像移动至定影组件夹持区的实际移动时长t 2。
关于步骤1302
在定影组件中的加热器完成预热后，还需等待打印机内部处理器完成相应的图像处理操作，由于不同的打印机中的内部处理器的处理效率不同，并且打印机所接收到的不同的打印任务，其任务量也不同，因此，加热器完成预热后需要等待的时间收到上述不同因素影响。因此，在加热器完成预热后，需要实时确定加热器预热后的温度情况，进而可以实时确定第二目标温度(定影目标温度)与加热器预热后当前温度的温度差值ΔT 2。
关于步骤1033
在确当图像形成设备的实际供电电压U 1和定影目标温度与加热器预热后当前温度的温度差值ΔT 2的情况下，可以通过该温度差值ΔT1确定将加热器(陶瓷片)二次加热(由预热后当前温度加热至第二目标温度)的第二能量消耗。具体地可以为，可以预先确定该加热器(陶瓷片)的比热容C，进而可以根据加热器(陶瓷片)的比热容C和该温度差值ΔT 1确定该第一能量消耗Q，其中考虑到在加热阶段存在能量的损耗，该第一能量消耗Q 可以包括将加热器(陶瓷片)由T N1加热至T N2的正常所需能量和损耗能量。进一步地可以通过上述公式三计算得到二次加热的加热时长t 3：
Figure PCTCN2021110222-appb-000007
关于步骤1034
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
根据步骤1033确定加热时间t 3以及步骤1031中确定的待定影图像的实际移动时长t 2的关联关系确定对加热器的加热起始时间，具体地可以以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时长t 3插入所述时间轴中，以使所述加热时长t 3相比于所述移动时长t 2提前设定时间(例如提前0.5s)结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t 3的起点作为对所述加热器的加热起始时间。
在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间内达到定影目标温度。
在实施例中，步骤103还可以通过以下操作步骤进一步实现：
步骤1031：确定待定影图像移动至定影组件的移动时长t 2；
步骤1032：确定第二目标温度与加热器预热后当前温度的温度差值ΔT 2；
步骤1033：根据所述实际供电电压U 1匹配适用于所述电压U 1的和预存表格或预存模拟曲线，将所述温度差值ΔT 2输入至预存表格或将二次加热阶段的起止温度映射至所述预存模拟曲线中，进一步地可以确定二次加热的加热时长t 3；
步骤1034：根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
关于步骤1031
在对加热器完成预热后，等待图像形成设备完成对图像的处理。例如，当打印机的内部处理器接收到用户终端发出的打印作业后，将打印作业中需要打印出来的像素点转换为曝光信息，打印机中的曝光单元对感光鼓进行曝光，在感光鼓表面形成静电潜像，感光鼓旋转至显影辊的位置，由于之前曝光单元需要形成图像的位置被曝光，这样曝光单元被曝光的位置就会和显影辊之间有电势差，碳粉就会被转移至曝光区域，形成图像；图像随着感光鼓的旋转，被转印到转印带上，转印带的图像旋转到二次转印辊的位置，将图像转移到纸张上，纸张经过定影组件，定影组件将碳粉图像热熔并固定在纸张上。
在上述定影过程中，还存在待定定影图像移动至定影组件夹持区的移动时长t 2，其中，在纸张向定影组件夹持区移动的过程中，纸张移动方向最前端的边缘移动至定影组件夹持区的时间是预先确定的，由于每个打印任务中需要定影的图像的顶端轮廓相距纸张的上述边缘的距离各不相同，因此，待定影图像移动至定影组件夹持区的实际移动时长t 2，由定影的图像的顶端轮廓相距纸张的上述边缘的相对距离决定，然而，在打印机进行上述 图像处理的过程中可以确定上述相对距离，进一步可以计算得到待定影图像移动至定影组件夹持区的实际移动时长t 2。
关于步骤1302
在定影组件中的加热器完成预热后，还需等待打印机内部处理器完成相应的图像处理操作，由于不同的打印机中的内部处理器的处理效率不同，并且打印机所接收到的不同的打印任务，其任务量也不同，因此，加热器完成预热后需要等待的时间收到上述不同因素影响。因此，在加热器完成预热后，需要实时确定加热器预热后的温度情况，进而可以实时确定第二目标温度(定影目标温度)与加热器预热后当前温度的温度差值ΔT 2。
关于步骤1033
在确当图像形成设备的实际供电电压U 1和定影目标温度与加热器预热后当前温度的温度差值ΔT 2的情况下，根据所述实际供电电压U 1和二次加热阶段设定的加热功率在数据库中匹配得到相应的预存表格或预存模拟曲线。其中，所述预存表格用于存储所述加热器在不同电源环境下被加热过程中各温度区间以及对应的加热时长，所述预存模拟曲线为所述加热器在不同电源环境下被加热的温度变化曲线。
在匹配得到适用于当前二次加热工况的预存表格的情况下，将所确定的数据(温度差值ΔT 2)输入至预存LUT表格中，并确定相应的二次加热的加热时长t 3。
在匹配得到适用于当前二次加热工况的预存模拟曲线的情况下，将所确定的数据(二次加热起止温度值)映射至预存模拟曲线上，进一步映射得到该二次加热起止温度所对应的加热时长t 3。
关于步骤1034
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
根据步骤1033确定加热时间t 3以及步骤1031中确定的待定影图像的实际移动时长t 2的关联关系确定对加热器的加热起始时间，具体地可以以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时长t 3插入所述时间轴中，以使所述加热时长t 3相比于所述移动时长t 2提前设定时间(例如提前0.5s)结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t 3的起点作为对所述加热器的加热起始时间。
在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间内达到定影目标温度。
图2为本发明实施例提供的用于图像形成设备的另一种加热控制方法的流程示意图，上述另一种加热控制方法为不考虑加热功率百分比以及能量损耗的理想环境下提供的一种加热控制方法，具体地该加热控制方法中包括第一加热过程，如图2所示第一加热过程包括：
步骤201：对图像形成设备中定影组件的加热器进行预热，以使加热器被加热至第一目标温度(预热目标温度)；
步骤202：确定所述加热器在当前电源环境下被加热过程的温度变化特性；
步骤203：根据所述温度变化特性确定对经过所述预热的所述加热器进行二次加热的加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
步骤202可以通过以下步骤所实现：
步骤2021：确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t 1；
步骤2022：根据所述温度区间的起止温度差值ΔT 1以及所述加热时长t 1确定所述加热器在当前电源环境下被加热过程中的温升速度
Figure PCTCN2021110222-appb-000008
并将所述温升速度
Figure PCTCN2021110222-appb-000009
作为所述温度变化特性。
关于步骤2021
选定加热器在当前电源环境下被加热过程中的任一温度区间，可以选定对加热器进行预热的预热阶段作为分析的温度区间。在对图像形成设备中的定影组件中的加热器进行预热时，获取加热器从开始预热至加热器达到预热目标温度所花费的实际预热时间t 1。其中，该加热器可以为陶瓷片、卤素灯或IH加热(Induction Heating，感应加热)，上述加热过程可以为以固定功率进行加热，且该预热目标温度为预设值。
由于加热器在预热前的温度与环境温度相关，即，加热器预热前的温度为非定值，不仅如此，图像形成设备的实际供电电压也非定值，例如，在打印机作业环境中出现另一电器接电后启动的情况下，此时，打印机的实际供电电压出现波动，变化后的电压同样影响加热器从开始预热至加热器达到预热目标温度所花费的实际预热时间t 1。
据上所述，确定加热器的实际预热时间t 1过程中存在2个变量，该2个变量分别为：加热器预热前的温度以及打印机的实际供电电压。为每次定影操作中加热控制的准确性，需要在每次对加热器预热时，确定一次加热器的实际预热时间t 1。
关于步骤2022
在确定加热器的实际预热时间t 1的情况下，进一步确定所选定温度区间的起止温度差值ΔT 1，在选定预热阶段作为所述选定的温度区间的情况下，该温度差ΔT 1为预热目标温度与加热器预热前的初始温度之间的温度差值，根据实际预热时间t 1和该温度差ΔT 1可以确定加热器加热的过程中的温升速度，具体地，可以该温升速度为
Figure PCTCN2021110222-appb-000010
并将所述温升速度
Figure PCTCN2021110222-appb-000011
作为所述温度变化特性。
步骤203可以通过以下步骤实现：
步骤2031：确定所述待定影图像移动至定影组件的移动时长t 2；
步骤2032：确定所述第二目标温度与所述加热器预热后当前温度的温度差值ΔT 2；
步骤2033：根据所述温升速度
Figure PCTCN2021110222-appb-000012
和所述温度差值ΔT 2确定所述二次加热的加热时长t 3；
步骤2034：根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
关于步骤2031
在对加热器完成预热后，等待图像形成设备完成对图像的处理。例如，当打印机的内部处理器接收到用户终端发出的打印作业后，将打印作业中需要打印出来的像素点转换为曝光信息，打印机中的曝光单元对感光鼓进行曝光，在感光鼓表面形成静电潜像，感光鼓旋转至显影辊的位置，由于之前曝光单元需要形成图像的位置被曝光，这样曝光单元被曝光的位置就会和显影辊之间有电势差，碳粉就会被转移至曝光区域，形成图像；图像随着感光鼓的旋转，被转印到转印带上，转印带的图像旋转到二次转印辊的位置，将图像转移到纸张上，纸张经过定影组件，定影组件将碳粉图像热熔并固定在纸张上。
在上述定影过程中，还存在待定定影图像移动至定影组件夹持区的移动时长t 2，其中，在纸张向定影组件夹持区移动的过程中，纸张移动方向最前端的边缘移动至定影组件夹持区的时间是预先确定的，由于每个打印任务中需要定影的图像的顶端轮廓相距纸张的上述边缘的距离各不相同，因此，待定影图像移动至定影组件夹持区的实际移动时长t 2，由定影的图像的顶端轮廓相距纸张的上述边缘的相对距离决定，然而，在打印机进行上述图像处理的过程中可以确定上述相对距离，进一步可以计算得到待定影图像移动至定影组件夹持区的实际移动时长t 2。
关于步骤2032
在定影组件中的加热器完成预热后，还需等待打印机内部处理器完成相应的图像处理操作，由于不同的打印机中的内部处理器的处理效率不同，并且打印机所接收到的不同的打印任务，其任务量也不同，因此，加热器完成预热后需要等待的时间收到上述不同因素影响。因此，在加热器完成预热后，需要实时确定加热器预热后的温度情况，进而可以实时确定第二目标温度(定影目标温度)与加热器预热后当前温度的温度差值ΔT 2。
关于步骤2033
根据步骤202中计算得到的温升速度和步骤2032中所确定的温度差ΔT 2可以确定将加热器加热至定影目标温度(二次加热)所需加热时长t 3，具体地，所需加热时长t 3为
Figure PCTCN2021110222-appb-000013
需要说明的是温度差ΔT 2根据加热器的当前温度实时更新，进而该所需加热时长t 3是根据温度差ΔT 2实时更新的。
关于步骤2034
根据步骤2033确定加热时间t 3以及在先确定的待定影图像的实际移动时长t 2的关联关系确定对加热器的加热起始时间，具体地可以以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时间t 3插入所述时间轴中，以使所述加热时长t 3相比于所述移动时长t＝提前设定时间(例如提前0.5s)结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t 3的起点作为对所述加热器的加热起始时间。
在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间内达到定影目标温度。
本发明实施例中还包括第二加热过程，其中，在图像形成设备接收到待处理任务后，可以首先确定进入第一加热过程或第二加热过程，该确定方式可以为在接收到图像形成任务(接到打印任务)后执行以下操作：
步骤01：确定加热器的当前温度是否高于预热目标温度；
若否，则执行步骤10：进入第一加热过程；
若是，则执行步骤20：进入第二加热过程。
关于步骤01
在打印机进行连续打印作业的情况下，即，打印机持续接收到新的打印任务的情况下，相邻两次打印任务的间隔时间决定了加热器的当前温度，基于相邻打印任务的间隔时间的影响将出现以下两种情况：
加热器的温度下降至预热目标温度以下；或
加热器的温度下降后仍在预热目标温度以上。
其中，在加热器的当前温度高于预热目标温度时，无需再对加热器进行预热操作，进而在此情况下无法获取到当前供电电压下的实际预热时间。因此不能进一步确定在当前供电电压下对加热器加热时加热器的温升速度。在此情况下可以进入第二加热过程以解决上述问题。
第二加热过程包括以下步骤：
步骤301：获取本次定影过程中的待定影图像的移动时长t 2以及上一次第一加热过程中的温升速度；
步骤302：根据步骤301获取到的待定影图像的移动时长t 2以及温升速度确定对加热器的加热起始时间；以及
步骤303：在步骤302中确定的加热起始时间触发对加热器的二次加热。
由于只有第一加热过程中才存在对加热器的预热操作，因此，可以直接获取上一次第一加热过程中的温升速度，进一步确定本次加热过程中的确定将加热器加热至定影目标温度所需加热时间t 3。进一步地确定本次定影过程中的待定影图像的移动时长t 2。在同时确定加热时间t 3以及本次定影过程中的待定影图像的移动时长t 2的情况下，可以基于第一加热过程中同样方式确定与本次加热过程对应的对加热器的加热起始时间，并在所确定的加热起始时间对加热器进行二次加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间达到定影目标温度。
关于步骤302
由于在进入第二加热过程前确定了，加热器的温度高于预热目标温度，因此，该加热器的当前温度可以视为经过预热后的温度。实时确定定影目标温度与加热器(陶瓷片)当前温度之间的温度差值，即，温度差ΔT 2；
根据温度差ΔT 2和获取到的上一次第一加热过程中的温升速度确定二次加热的加热时间t 3，
Figure PCTCN2021110222-appb-000014
以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时间t 3插入所述时间轴中，以使所述加热时长t 3相比于所述移动时长t 2提前设定时间(例如提前0.5s)结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所 述加热时长t 3的起点作为对所述加热器的加热起始时间。在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间达到定影目标温度。
在加热器被加热至定影目标温度后0.5s，承载待定影图像的纸张移动至定影组件中热辊和压辊形成的夹持区，在纸张经过夹持区时，定影膜内的达到定影目标温度的陶瓷片可以对纸张上的碳粉进行加热，压辊对纸张进行加压，以使受热融化的碳粉固定在纸张上，形成相应的打印图像。
基于上述方案，在不同供电电压下，调整不同的起始加热时间点，确保纸张上的待定影图像进入定影组件夹持区前，陶瓷片能达到定影目标温度，同时又没有提前太长时间，能够稳定控制合理的加热起始时间点，解决电压不同导致的图像定影问题。
而且相对于增加稳压电路，上述技术方案在不增加电路改动的情况，结合加热时长预测实际供电电压大小，再结合预测值调整定影开始时间，可以低成本解决定影不牢或者重影的问题。
本发明实施例还提供一种用于图像形成设备的加热控制装置，图3示出了本发明实施例提供的用于图像形成设备的加热控制装置的结构示意图，如图3所示，该加热控制装置包括：
处理器10和存储器20，所述存储器20用于存储至少一条指令，所述指令由所述处理器10加载并执行时以实现以下用于图像形成设备的加热控制方法：
在图像形成设备开机、休眠唤醒或接收到待处理任务时，对所述加热器进行预热并加热至第一目标温度；
确定所述加热器在当前电源环境下被加热过程的温度变化特性或所述当前电源的电压参数；
根据所述温度变化特性或所述当前电源的电压参数，确定对经过所述预热的所述加热器进行二次加热的加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
进一步地，所述确定所述加热器的当前电源环境的电压参数包括：
确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t1、所述温度区间的起止温度T N1与T N2的差值ΔT 1以及由T N1加热至T N2的第一能量消耗
根据所述加热时长t 1、所述温度区间的起止温度差值ΔT 1以及所述第一能量消耗计算得到所述当前电源环境的电压参数U 1。
进一步地，所述根据所述电压参数确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
确定所述待定影图像移动至定影组件的移动时长t 2；
确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
进一步地，所述确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3包括：
确定所述第二目标温度与所述加热器预热后当前温度的温度差值ΔT 2；根据所述温度差值ΔT 2确定由所述加热器预热后当前温度加热至所述第二目标温度的第二能量消耗；
根据所述第二能量消耗和所述当前电源环境的电压参数U 1确定所述加热时长t 3。
进一步地，所述确定所述加热器在当前电源环境下被加热过程的温度变化特性包括：
确定所述当前电源环境的电压参数U 1；
在数据库中匹配适用于所述电压参数U 1的预存表格或预存模拟曲线，将所提取的所述预存表格或预存模拟曲线作为所述温度变化特性，其中，所述预存表格用于存储所述加热器在不同电源环境下被加热过程中各温度区间以及对应的加热时长，所述预存模拟曲线为所述加热器在不同电源环境下被加热的温度变化曲线。
进一步地，所述根据所述温度变化特性确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
确定所述待定影图像移动至定影组件的移动时长t 2；
将所述电压参数U1输入至所述匹配得到的所述预存表格或所述预存模拟曲线中，以确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
进一步地，所述根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间包括：
以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时长t 3插入所述时间轴中，以使所述加热时长t 3相比于所述加热时长t 2提前所述设定时间结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t 3的起点作为对所述加热器的加热起始时间。
本发明实施例还提供一种图像形成设备，图4为本发明一个实施例提供的图像形成设备结构示意图。
请参阅图4，图像形成设备100用于执行图像形成任务，诸如生成、打印、接收和发送图像数据，并且图像形成设备100的示例包括打印机、扫描仪、复印机、传真机、以及在单个设备中执行以上功能的多功能外围设备(MFP，Multi-Functional Peripheral)。
以下基于打印机100的内部器件详细作业流程对上述用于图像形成设备的加热控制方法进行详细描述。
如图4所示，该图像形成设备100包括感光鼓101Y-K、充电辊102Y-K、显影辊103Y-K、粉仓104Y-K、转印带105、二次转印辊106、供纸盒107、手动送纸盘108、搓纸辊109、搬送辊110、纸张检测传感器120、激光扫描单元(LSU，Laser Scanning Unit)111、热辊112、压辊113、排出辊114和排出纸盒115等。一般来说，处理盒C-M分别包括感光鼓101Y-K、充电辊102Y-K、显影辊103Y-K以及用于盛放碳粉的粉仓104Y-K。
LSU 111为单个LSU的形式，包括四束光路。四个充电辊102Y-K用于分别给四个感光鼓101Y-K表面充电，LSU 111的四束光路分别发出激光束在感光鼓101Y-K表面形成静电潜像，四个显影辊103Y-K用于分别在感光鼓101Y-K表面上显影形成一个颜色的碳粉图像，图像形成设备100采用二次转印的方式，即四个感光鼓101Y-K依次将碳粉图像转印到转印带105上，然后转印带105上形成的彩色碳粉图像经二次转印辊106二次转印到纸 张上。供纸盒107用于存放纸张，搓纸辊109用于将存放纸张搬送至搬送路径(即后文的纸路通道)。搬送辊110用于将纸张搬送到二次转印辊106处。
二次转印辊106把成像后的纸张搬送到热辊112和压辊113的夹持区，热辊112和压辊113用于对纸张上的碳粉图像进行定影，热辊112可以采用陶瓷加热方式，热辊112和压辊113将定影后的纸张搬送到排出辊114，排出辊114将纸张排出到排出纸盒115并堆叠起来。
图5示出了本发明实施例提供的定影组件加持区的结构示意图，二次转印辊106把成像后的纸张P1搬送到如图5所示的定影组件，即，纸张P1移动到定影组件中热辊112和压辊113的夹持区，热辊112和压辊113用于对纸张P1上的碳粉图像进行定影，热辊112可以通过定影膜112C内部达到定影目标温度的陶瓷片112A对纸张P1上的碳粉图像进行加热，热辊112和压辊113将定影后的纸张搬送到排出辊114，排出辊114将纸张排出到排出纸盒115并堆叠起来。
其中，激光扫描单元111通过光打印头的曝光来获取原稿/源文件的光学模拟图像信号。纸张检测传感器120用于检测其所在位置的纸路通道是否有纸张。
供纸盒107设置有出纸口，搓纸辊109具体用于将供纸盒107内盛装的纸张从出纸口送入纸路通道以供转印需求，图像形成设备100图像形成设备100还包括驱动搓纸辊109工作的驱动机构(图未示)，驱动机构为驱动电机，用于驱动搓纸辊109运动，以实现搓纸操作。驱动机构181与图像形成装置的控制器(图未示)电性连接，以实现控制器对驱动机构的工作控制。控制器与纸张检测传感器120电性连接，纸张检测传感器将纸路通道上是否有纸张的检测结果信息发送给控制器。
图像形成设备100还包括操作面板(图未示)，操作面板包括由各种键构成的操作部(图未示)以及触摸板式的显示部(图未示)。
在实施例中，在打印机接收到用户终端发送的打印任务时，触发以下操作：
图像形成设备100内部处理器(如SOC，System-on-a-Chip)对接收到的待处理图像进行相应图像处理；
加热控制装置确定陶瓷片112A的当前温度是否高于预热目标温度，根据比较结果确定所要进入的加热过程。
关于打印机内部处理器对接收到的待处理图像进行相应图像处理
在具体实现中，激光扫描单元111通过光打印头的曝光来获取原稿的光学模拟图像信号，四个感光鼓101Y-K根据激光扫描单元111的光学模拟图像信号生成图像，四个感光鼓101Y-K依次将碳粉图像转印到转印带105上，然后转印带105上形成的彩色碳粉图像经二次转印辊106二次转印到纸张上，从而完成待定影图像的生成。在上述图像处理操作中即可根据图像信息确定待定影图像移动到定影组件夹持区的待定影图像的移动时长t2。
关于加热过程的确定
在上述不考虑加热功率百分比和能量损耗的情况下，进一步确定进入第一加热过程或第二加热过程的方式可以为以下操作：
步骤01：确定加热器的当前温度是否高于预热目标温度；
若否，进入第一加热过程；
若是，进入第二加热过程。
若进入第一加热过程，则执行以下操作：
在开始预热前，通过定影组件内的温度传感器112B获取陶瓷片112A预热前的温度。并触发对陶瓷片112A的预热流程。
在触发对陶瓷片112A的预热流程后，用于图像形成设备的加热控制装置控制定影组件的对应供电电源为定影组件中纯电阻电路通电，对定影组件中陶瓷片112A进行加热，以使陶瓷片112A的温度达到预热目标温度。
开始预热后，通过打印机的内部计时单元获取陶瓷片112A由开始预热至陶瓷片112A达到预热目标温度所花费的实际预热时间t 1。
该加热控制装置获取该实际预热时间t 1，并计算预热目标温度与陶瓷片112A预热前温度的温度差值，即，第一温度差ΔT 1。根据实际预热时间t1和该第一温度差ΔT 1可以确定加热器加热的过程中的温升速度，具体地，可以该温升速度为
Figure PCTCN2021110222-appb-000015
在完成上述二次转印，即，在完成将待定影图像转印至纸张P1上的情况下，触发定影操作。本发明实施例的目的在于：需要在承载待定影图像的纸张P1移动至定影组件夹持区前设定时间内将陶瓷片加热至定影目标温度。为实现该目的，需要根据待定影图像的移动时长t2调整对陶瓷片的加热起始时间，具体地操作如下：
实时确定定影目标温度与陶瓷片预热后温度之间的温度差值，即，第二温度差值ΔT2；
根据第二温度差ΔT2和温升速度确定二次加热的加热时间t3，
Figure PCTCN2021110222-appb-000016
以所述待定影图像的移动时长t2建立时间轴，将所述二次加热的加热时间t3插入所述时间轴中，以使所述时间t3相比于所述时间t2提前0.5s结束，并根据所述时间轴中的时间t3的时间长度确定所述时间t3的起点，将所述时间t3的起点作为对所述加热器的加热起始时间。在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间达到定影目标温度。
根据上述操作，在加热器被加热至定影目标温度后0.5s，承载待定影图像的纸张P1移动至如图5所示的热辊112和压辊113形成的夹持区，在纸张P1经过夹持区时，定影膜112C内的达到定影目标温度的陶瓷片112A可以对纸张P1上的碳粉进行加热，压辊对纸张进行加压，以使受热融化的碳粉固定在纸张P1上，形成相应的打印图像。
若进入第二加热过程，则执行以下操作：
跳过对加热器的预热；
通过温度传感器112B实时获取陶瓷片的当前温度；
获取与本次加热过程相关的待定影图像的移动时长t 2以及上一次第一定影过程中的温升速度；
实时确定定影目标温度与陶瓷片当前温度之间的温度差值，即，第二温度差值ΔT 2；
根据第二温度差ΔT 2和获取到的上一次第一定影过程中的温升速度确定二次加热的加热时间t 3，
Figure PCTCN2021110222-appb-000017
以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时间t 3插入所述时间轴中，以使所述时间t 3相比于所述时间t 2提前0.5s结束，并根据所述时间轴中的时间t 3的时间长度确定所述时间t 3的起点，将所述时间t 3的起点作为对所述加热器的加热起始时间。在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间达到定影目标温度。
根据上述操作，在加热器被加热至定影目标温度后0.5s，承载待定影图像的纸张P1移动至如图5所示的热辊112和压辊113形成的夹持区，在纸张P1经过夹持区时，定影膜112C内的达到定影目标温度的陶瓷片112A可以对纸张P1上的碳粉进行加热，压辊对纸张进行加压，以使受热融化的碳粉固定在纸张P1上，形成相应的打印图像。
在上述考虑加热功率百分比和能量损耗的情况下，确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t 1；确定温度区间的起止温度T N1与T N2的差值ΔT 1以及由T N1加热至T N2的第一能量消耗；根据加热时长t 1、所述温度区间的起止温度差值ΔT 1以及第一能量消耗计算得到当前电源环境的电压参数U 1。根据所述实际供电电压U 1匹配适用于所述电压U 1的和预存表格或预存模拟曲线，将所述温度差值ΔT 2输入至预存表格或将二次加热阶段的起止温度映射至所述预存模拟曲线中，进一步地可以确定二次加热的加热时长t 3；以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时间t 3插入所述时间轴中，以使所述时间t 3相比于所述时间t 2提前0.5s结束，并根据所述时间轴中的时间t 3的时间长度确定所述时间t 3的起点，将所述时间t 3的起点作为对所述加热器的加热起始时间。在所确定的加热起始时间对加热器进行加热，以使加热器能够在待定影图像移动至定影组件夹持区前设定时间达到定影目标温度。
根据上述操作，在加热器被加热至定影目标温度后0.5s，承载待定影图像的纸张P1移动至如图5所示的热辊112和压辊113形成的夹持区，在纸张P1经过夹持区时，定影膜112C内的达到定影目标温度的陶瓷片112A可以对纸张P1上的碳粉进行加热，压辊对纸张进行加压，以使受热融化的碳粉固定在纸张P1上，形成相应的打印图像。
本发明实施例还提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述用于图像形成设备的加热控制方法。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本发明所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如，多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机装置(可以是个人计算机，服务器，或者网络装置等)或处理器(Processor)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

  1. 一种用于图像形成设备的加热控制方法，所述图像形成设备包括定影组件和向所述定影组件供电的电源，所述定影组件中设置有加热器和检测定影组件温度的温度传感器，其特征在于，所述方法包括：
    在图像形成设备开机、休眠唤醒或接收到待处理任务时，对所述加热器进行预热并加热至第一目标温度；
    根据预热阶段中加热前温度、加热后温度和对应的加热时长，确定所述加热器的当前电源环境的电压参数或所述加热器在当前电源环境下被加热过程的温度变化特性；
    根据所述当前电源的电压参数或所述温度变化特性，确定对经过所述预热的所述加热器进行二次加热的加热起始时间，并在所述加热起始时间触发所述二次加热，以使所述加热器的温度在待定影图像移动至定影组件前设定时间内达到第二目标温度。
  2. 根据权利要求1所述的方法，其特征在于，所述确定所述加热器的当前电源环境的电压参数包括：
    确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t1、所述温度区间的起止温度T N1与T N2的差值ΔT 1
    根据所述加热时长t 1、所述温度区间的起止温度差值ΔT 1确定所述当前电源环境的电压参数性。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述电压参数确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
    确定所述待定影图像移动至定影组件的移动时长t 2；
    确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
    根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
  4. 根据权利要求3所述的方法，其特征在于，所述确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3包括：
    确定所述第二目标温度与所述加热器预热后当前温度的温度差值ΔT 2；根据所述温度差值ΔT 2确定所述加热器处于当前电源环境的电压参数时，由所述加热器预热后当前温度加热至所述第二目标温度，对应的加热时长t 3。
  5. 根据权利要求1所述的方法，其特征在于，所述根据预热阶段中加热前温度、加 热后温度和对应的加热时长，确定所述加热器在当前电源环境下被加热过程的温度变化特性包括：
    确定所述加热器在当前电源环境下被加热过程中的任一温度区间所对应的加热时长t1、所述温度区间的起止温度T N1与T N2的差值ΔT 1；
    根据所述温度区间的起止温度T N1与T N2的差值ΔT 1，在数据库中匹配适用于当前电压特性的预存表格或预存模拟曲线，将所述预存表格或预存模拟曲线作为所述温度变化特性，其中，所述预存表格用于存储所述加热器在不同电源环境下被加热过程中各温度区间以及对应的加热时长，所述预存模拟曲线为所述加热器在不同电源环境下被加热的温度变化曲线。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述温度变化特性确定对经过所述预热的所述加热器进行二次加热的加热起始时间包括：
    确定所述待定影图像移动至定影组件的移动时长t 2；
    根据匹配得到的所述预存表格或所述预存模拟曲线确定由所述加热器预热后当前温度加热至所述第二目标温度的加热时长t 3；
    根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间。
  7. 根据权利要求3或6所述的方法，其特征在于，所述根据所述二次加热的加热时长t 3和所述待定影图像的移动时长t 2的关联关系确定所述加热起始时间包括：
    以所述待定影图像的移动时长t 2建立时间轴，将所述二次加热的加热时长t 3插入所述时间轴中，以使所述加热时长t 3相比于所述加热时长t 2提前所述设定时间结束，并根据所述时间轴中的加热时长t 3的时间长度确定所述加热时长t 3的起点，将所述加热时长t3的起点作为对所述加热器的加热起始时间。
  8. 一种用于图像形成设备的加热控制装置，其特征在于，所述装置包括：
    处理器和存储器，所述存储器中存储有计算机程序，所述处理器与所述存储器连接，所述处理器执行计算机程序以实现如权利要求1-7中任意一项所述的用于图像形成设备的加热控制方法。
  9. 一种图像形成设备，其特征在于，所述图像形成设备包括权利要求8所述的用于图像形成设备的加热控制装置。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1-7中任意一项所述的用于图像形成设备的加热控制 方法。
PCT/CN2021/110222 2020-08-05 2021-08-03 加热控制方法及装置、图像形成设备、存储介质 WO2022028394A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/164,564 US20230185220A1 (en) 2020-08-05 2023-02-03 Method and apparatus of heating control, image forming device, and storage medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010778662.7A CN111781811B (zh) 2020-08-05 2020-08-05 加热控制方法及装置、图像形成设备、存储介质
CN202010778662.7 2020-08-05

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/164,564 Continuation US20230185220A1 (en) 2020-08-05 2023-02-03 Method and apparatus of heating control, image forming device, and storage medium

Publications (1)

Publication Number Publication Date
WO2022028394A1 true WO2022028394A1 (zh) 2022-02-10

Family

ID=72765838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/110222 WO2022028394A1 (zh) 2020-08-05 2021-08-03 加热控制方法及装置、图像形成设备、存储介质

Country Status (3)

Country Link
US (1) US20230185220A1 (zh)
CN (1) CN111781811B (zh)
WO (1) WO2022028394A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114747943A (zh) * 2022-04-29 2022-07-15 佛山市顺德区美的饮水机制造有限公司 即热饮水机及其预热控制方法与装置、存储介质

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111781811B (zh) * 2020-08-05 2023-10-13 珠海奔图电子有限公司 加热控制方法及装置、图像形成设备、存储介质
CN115139669A (zh) * 2022-07-01 2022-10-04 联想图像(山东)科技有限公司 一种打印机加热控制方法、装置、打印机及打印方法
CN115509104A (zh) * 2022-10-27 2022-12-23 珠海奔图电子有限公司 加热控制方法及图像形成装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097433A (zh) * 2006-06-30 2008-01-02 株式会社东芝 定影装置、定影温度控制方法
US20140205306A1 (en) * 2013-01-21 2014-07-24 Kyocera Document Solutions Inc. Image Forming Apparatus for Restricting Excessive Temperature Rise of Fixing Member
CN110716407A (zh) * 2019-10-22 2020-01-21 珠海奔图电子有限公司 一种定影加热方法和装置、以及图像形成装置
US20200103795A1 (en) * 2018-09-27 2020-04-02 Canon Kabushiki Kaisha Image heating apparatus
CN210626884U (zh) * 2019-03-27 2020-05-26 虹光精密工业（苏州）有限公司 定影装置及使用其的激光打印机
CN111781811A (zh) * 2020-08-05 2020-10-16 珠海奔图电子有限公司 加热控制方法及装置、图像形成设备、存储介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000330418A (ja) * 1999-05-21 2000-11-30 Ricoh Co Ltd 定着装置
JP2001236126A (ja) * 2000-02-25 2001-08-31 Canon Inc 加熱装置の加熱体昇温時間予測方法及び画像形成装置
KR100541944B1 (ko) * 2003-07-10 2006-01-10 삼성전자주식회사 화상 형성 장치의 정착 시스템 및 그 온도 제어 방법
JP2008134377A (ja) * 2006-11-28 2008-06-12 Ricoh Co Ltd 定着装置、画像形成装置
JP5948851B2 (ja) * 2011-03-18 2016-07-06 株式会社リコー 発熱体通電制御装置、定着装置、画像形成装置及び発熱体通電制御方法
JP6064931B2 (ja) * 2014-03-19 2017-01-25 コニカミノルタ株式会社 定着装置及び画像形成装置
CN108800595A (zh) * 2018-05-11 2018-11-13 广东万和热能科技有限公司 电热水器剩余加热时间生成方法、装置及电热水器
CN110547508B (zh) * 2018-05-31 2021-02-26 常州市派腾电子技术服务有限公司 电子烟的控制方法和装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097433A (zh) * 2006-06-30 2008-01-02 株式会社东芝 定影装置、定影温度控制方法
US20140205306A1 (en) * 2013-01-21 2014-07-24 Kyocera Document Solutions Inc. Image Forming Apparatus for Restricting Excessive Temperature Rise of Fixing Member
US20200103795A1 (en) * 2018-09-27 2020-04-02 Canon Kabushiki Kaisha Image heating apparatus
CN210626884U (zh) * 2019-03-27 2020-05-26 虹光精密工业（苏州）有限公司 定影装置及使用其的激光打印机
CN110716407A (zh) * 2019-10-22 2020-01-21 珠海奔图电子有限公司 一种定影加热方法和装置、以及图像形成装置
CN111781811A (zh) * 2020-08-05 2020-10-16 珠海奔图电子有限公司 加热控制方法及装置、图像形成设备、存储介质

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114747943A (zh) * 2022-04-29 2022-07-15 佛山市顺德区美的饮水机制造有限公司 即热饮水机及其预热控制方法与装置、存储介质
CN114747943B (zh) * 2022-04-29 2024-03-15 佛山市顺德区美的饮水机制造有限公司 即热饮水机及其预热控制方法与装置、存储介质

Also Published As

Publication number Publication date
CN111781811B (zh) 2023-10-13
US20230185220A1 (en) 2023-06-15
CN111781811A (zh) 2020-10-16

Similar Documents

Publication Publication Date Title
WO2022028394A1 (zh) 加热控制方法及装置、图像形成设备、存储介质
JP2004326098A (ja) 定着装置、画像形成装置及び定着方法
US20100254722A1 (en) Image forming apparatus
JP4922842B2 (ja) 定着装置、画像形成装置、温度制御方法、プログラム及び記憶媒体
KR101757218B1 (ko) 화상형성장치 및 정착기 구동 제어 방법
US20040165904A1 (en) Image forming apparatus and fixing temperature control method for the apparatus
JP4016974B2 (ja) 画像形成装置
JP6881929B2 (ja) 画像形成装置
JP4923709B2 (ja) 画像形成装置
JP5039441B2 (ja) 画像形成装置および画像形成方法
KR20010082813A (ko) 전자사진 현상방식을 채용한 화상형성장치에서 정착온도제어방법
JP5942832B2 (ja) 画像形成装置、画像形成装置の制御方法、及び画像形成装置の制御プログラム
JP6840479B2 (ja) 画像加熱装置および画像形成装置
KR100303661B1 (ko) 정착기의 온도 제어방법
JP2005181778A (ja) 画像形成装置
JP6173251B2 (ja) 画像形成装置
JP2007316410A (ja) 画像形成装置
JP2003280447A (ja) 画像形成装置
JP2005241660A (ja) 画像形成装置
CN101995801B (zh) 定影设备和成像设备
JPH10198215A (ja) 画像形成装置
US20230328190A1 (en) Information processing apparatus, non-transitory computer readable medium storing program, and information processing method
JPH10104991A (ja) 熱定着装置の電力制御装置
US20140153948A1 (en) Image-Forming Apparatus that Corrects Detected Temperature of Heating Member Detected by Non-Contact Temperature Sensor
JP4972239B2 (ja) 画像形成装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21852404

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202317012382

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21852404

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 07.08.2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21852404

Country of ref document: EP

Kind code of ref document: A1