Fault Processing Method, Device, Image Forming Device and Storage Medium Based on an Image Forming Device

Abstract

An embodiment of the present application provides a fault handling method, apparatus, image forming apparatus, and storage medium based on an image forming apparatus, which relates to the technical field of image formation. The method includes: during a printing process, determining at least one thermistor corresponding to a current printing job. Obtaining the voltage value of each thermistor. Performing an identification process on each thermistor according to a preset fault identification mode and the voltage value to obtain the status information of each thermistor; wherein, the fault identification mode is used to indicate fault identification information; the status information is used to indicate whether the thermistor has a fault. This method is used to achieve the effect of avoiding printing failures caused by faults in the fixing device of the image forming apparatus.

Description

Technical Field

[0001] The present application relates to the technical field of image formation, and particularly to a fault processing method, apparatus, image forming apparatus, and storage medium based on an image forming apparatus. Background Art

[0002] Currently, fixing devices are included in image forming apparatuses such as printers and copiers. Under high temperature and high pressure, the fixing device melts the developer and infiltrates it into the paper fibers. Since the fixing device will reach a very high temperature during the fixing process, in order to avoid safety accidents, it is necessary to detect the temperature of the fixing device and activate safety protection when overheating occurs.

[0003] In the prior art, a thermistor is usually used to measure the heating temperature of the fixing device. Through the thermistor, it can be determined whether the fixing device is heated to a preset temperature and whether the fixing device is overheated. When the fixing device is overheated, the image forming apparatus can timely disconnect the heating operation to avoid safety accidents such as fires.

[0004] However, in the prior art, during long-term use, it is possible for the thermistor itself to malfunction. At this time, the faulty thermistor will read abnormal fixing temperature data. If the read temperature is abnormally high, it will trigger the overheat protection of the image forming apparatus; if the read temperature is abnormally low, it may miss the overheat situation, causing danger, and further causing the fixing device in the image forming apparatus to easily malfunction and lead to printing failures. Summary of the Invention

[0005] Embodiments of the present application provide a fault processing method, apparatus, image forming apparatus, and storage medium based on an image forming apparatus, so as to achieve the effect of avoiding printing failures caused by malfunctions of the fixing device in the image forming apparatus.

[0006] In a first aspect, an embodiment of the present application provides a fault processing method based on an image forming apparatus, including:

[0007] During printing, determine at least one thermistor corresponding to the current printing job;

[0008] Obtain the voltage value of each thermistor;

[0009] According to a preset fault recognition pattern and the voltage value, perform recognition processing on each thermistor to obtain the status information of each thermistor; wherein, the fault recognition pattern is used to indicate fault recognition information; the status information is used to indicate whether the thermistor has malfunctioned.

[0010] In a possible implementation, the image forming apparatus is provided with a ceramic sheet for fixing and heating, and a plurality of thermistors are arranged on the ceramic sheet;

[0011] Among them, the first thermistor is located at one end of the ceramic sheet, the second thermistor is located at the central position of the ceramic sheet, and the third thermistor is located between the other end of the ceramic sheet and the central position.

[0012] In a possible implementation, according to the preset fault identification mode and the voltage value, each thermistor is identified to obtain the status information of each thermistor, including:

[0013] Each thermistor is identified according to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor; wherein, the image forming apparatus is provided with a plurality of thermistors at different positions.

[0014] In a possible implementation, each thermistor is identified according to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor, including:

[0015] If the printing job corresponds to one thermistor and the voltage value of the thermistor is the preset voltage threshold, it is determined that the status information of the thermistor is a fault.

[0016] In a possible implementation, the printing job corresponds to two thermistors, namely the second thermistor and the third thermistor; each thermistor is identified according to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor, including:

[0017] Determine the product of the first temperature correction coefficient in the fault identification mode and the voltage value of the third thermistor;

[0018] If it is determined that the product is not equal to the voltage value of the second thermistor, it is determined that the status information of the second thermistor is a fault, and / or the status information of the third thermistor is a fault.

[0019] In a possible implementation, the printing job corresponds to three thermistors, namely the first thermistor, the second thermistor and the third thermistor; each thermistor is identified according to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor, including:

[0020] Determine the first product of the first temperature correction coefficient and the voltage value of the third thermistor, and the second product of the second temperature correction coefficient and the voltage value of the first thermistor in the fault identification mode;

[0021] If it is determined that the voltage value of the second thermistor is equal to the first product and the voltage value of the second thermistor is equal to the second product, then determine that the status information of the first thermistor, the second thermistor, and the third thermistor is all normal.

[0022] In a possible implementation, the method further includes:

[0023] If it is determined that the voltage value of the second thermistor is not equal to the first product, and / or the voltage value of the second thermistor is not equal to the second product, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0024] If it is determined that the first product is equal to the second product and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal.

[0025] In a possible implementation, the method further includes:

[0026] If it is determined that the first product is not equal to the second product, and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0027] If it is determined that the first product is equal to the voltage value of the second thermistor and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

[0028] In a possible implementation, the method further includes:

[0029] If it is determined that the first product is not equal to the voltage value of the second thermistor, and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0030] If it is determined that the second product is equal to the voltage value of the second thermistor, and the first product is not equal to the voltage value of the second thermistor, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

[0031] In a possible implementation manner, the method further includes:

[0032] If it is determined that the second product is not equal to the voltage value of the second thermistor, and / or the first product is equal to the voltage value of the second thermistor, it is determined that the status information of all of the first thermistor, the second thermistor, and the third thermistor is faulty.

[0033] In a possible implementation manner, after identifying each thermistor according to the preset fault identification mode and the voltage value to obtain the status information of each thermistor, the method further includes:

[0034] Select a fault solution for the print job according to the status information, and execute the fault solution.

[0035] In a possible implementation manner, selecting a fault solution for the print job according to the status information and executing the fault solution includes:

[0036] If the status information of any thermistor indicates that the thermistor is faulty, determine that the fault solution for the print job is to stop the current print job; and stop the current print job according to the fault solution, and generate a fault prompt message.

[0037] In a possible implementation manner, selecting a fault solution for the print job according to the status information and executing the fault solution includes:

[0038] According to the voltage value of the thermistor corresponding to the print job, the first temperature correction coefficient, and the second temperature correction coefficient, perform voltage prediction on the thermistor whose status information indicates a faulty state to obtain the theoretical voltage data of the faulty thermistor;

[0039] Update the voltage value of the faulty thermistor to the theoretical voltage data, and determine that the fault solution for the print job is to execute the current print job according to the theoretical voltage data;

[0040] Execute the current print job according to the fault solution; and generate a fault prompt message after determining that the print job is completed.

[0041] In a second aspect, an embodiment of the present application provides a fault processing device based on an image forming apparatus, including:

[0042] A first determination module, configured to determine at least one thermistor corresponding to a current printing job during the printing process;

[0043] A second determination module, configured to obtain the voltage value of each of the thermistors;

[0044] An identification module, configured to perform identification processing on each of the thermistors according to a preset fault identification mode and the voltage value to obtain the status information of each of the thermistors; wherein, the fault identification mode is used to indicate fault identification information; the status information is used to indicate whether the thermistor has a fault.

[0045] In a possible implementation manner, the image forming apparatus is provided with a ceramic sheet for fixing and heating, and a plurality of thermistors are arranged on the ceramic sheet;

[0046] Wherein, a first thermistor is located at an end of one side of the ceramic sheet, a second thermistor is located at the central position of the ceramic sheet, and a third thermistor is located between the end of the other side of the ceramic sheet and the central position.

[0047] In a possible implementation manner, the identification module includes:

[0048] An identification unit, configured to perform identification processing on each of the thermistors according to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each of the thermistors; wherein, the image forming apparatus is provided with a plurality of thermistors at different positions.

[0049] In a possible implementation manner, the identification unit is specifically configured to:

[0050] If the printing job corresponds to one thermistor and the voltage value of the thermistor is a preset voltage threshold, it is determined that the status information of the thermistor is a fault.

[0051] In a possible implementation manner, the printing job corresponds to two thermistors, namely a second thermistor and a third thermistor; the identification unit is specifically configured to:

[0052] Determine the product of the first temperature correction coefficient in the fault identification mode and the voltage value of the third thermistor;

[0053] If it is determined that the product is not equal to the voltage value of the second thermistor, it is determined that the status information of the second thermistor is a fault, and / or the status information of the third thermistor is a fault.

[0054] In a possible implementation manner, the printing job corresponds to three thermistors, namely a first thermistor, a second thermistor, and a third thermistor; the recognition unit is specifically configured to:

[0055] Determine a first product of a first temperature correction coefficient in the fault recognition mode and a voltage value of the third thermistor, and a second product of a second temperature correction coefficient and a voltage value of the first thermistor;

[0056] If it is determined that the voltage value of the second thermistor is equal to the first product and the voltage value of the second thermistor is equal to the second product, then determine that the status information of the first thermistor, the second thermistor, and the third thermistor is all normal.

[0057] In a possible implementation manner, the device is further specifically configured to:

[0058] If it is determined that the voltage value of the second thermistor is not equal to the first product and / or the voltage value of the second thermistor is not equal to the second product, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0059] If it is determined that the first product is equal to the second product and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal.

[0060] In a possible implementation manner, the device is further specifically configured to:

[0061] If it is determined that the first product is not equal to the second product and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0062] If it is determined that the first product is equal to the voltage value of the second thermistor and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

[0063] In a possible implementation manner, the device is further specifically configured to:

[0064] If it is determined that the first product is not equal to the voltage value of the second thermistor and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0065] If it is determined that the second product is equal to the voltage value of the second thermistor, and the first product is not equal to the voltage value of the second thermistor, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

[0066] In a possible implementation manner, the device is further specifically configured to:

[0067] If it is determined that the second product is not equal to the voltage value of the second thermistor, and / or the first product is equal to the voltage value of the second thermistor, it is determined that the status information of all of the first thermistor, the second thermistor, and the third thermistor is faulty.

[0068] In a possible implementation manner, the device further includes:

[0069] An execution module, configured to, after identifying each thermistor according to the preset fault identification mode and the voltage value to obtain the status information of each thermistor, select a fault solution for the print job according to the status information, and execute the fault solution.

[0070] In a possible implementation manner, the execution module is specifically configured to:

[0071] If the status information of any thermistor indicates that the thermistor is faulty, determine that the fault solution for the print job is to stop the current print job; and stop the current print job according to the fault solution, and generate a fault prompt message.

[0072] In a possible implementation manner, the execution module is specifically configured to:

[0073] Perform voltage prediction on the thermistor whose status information indicates a faulty state according to the voltage value, the first temperature correction coefficient, and the second temperature correction coefficient of the thermistor corresponding to the print job, to obtain the theoretical voltage data of the faulty thermistor;

[0074] Update the voltage value of the faulty thermistor to the theoretical voltage data, and determine that the fault solution for the print job is to execute the current print job according to the theoretical voltage data;

[0075] Execute the current print job according to the fault solution; and generate a fault prompt message after determining that the print job is completed.

[0076] In a third aspect, an embodiment of the present application provides an image forming apparatus, including: a memory, a processor;

[0077] The memory stores computer-executable instructions;

[0078] The processor executes the computer-executable instructions stored in the memory, so that the processor performs the above first aspect and / or various possible implementation manners of the first aspect.

[0079] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, they are used to implement the above first aspect and / or various possible implementation manners of the first aspect.

[0080] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the above first aspect and / or various possible implementation manners of the first aspect.

[0081] A fault processing method, device, image forming device, and storage medium based on an image forming device provided by an embodiment of the present application determine at least one thermistor corresponding to a current printing job during a printing process. Obtain the voltage value of each thermistor. According to a preset fault recognition mode and the voltage value, perform recognition processing on each thermistor to obtain the status information of each thermistor; wherein, the fault recognition mode is used to indicate fault recognition information; the status information is used to indicate whether a thermistor has a fault. In this solution, the thermistors required for the current printing job are determined, and the voltage value of each thermistor is obtained. According to the preset fault recognition mode and the voltage value of each thermistor, it is determined whether each thermistor has a fault. Therefore, when a certain thermistor fails, the faulty thermistor can be effectively identified in a timely manner, avoiding the problems that the printing job cannot be completed when individual thermistors in the fixing device fail, and the risk of overheating may be missed when individual thermistors fail, so as to achieve the effect of avoiding the fixing device in the image forming device from malfunctioning and causing printing failures. Description of the Drawings

[0082] The drawings here are incorporated into the description and constitute a part of this description, showing embodiments consistent with the present application, and are used together with the description to explain the principles of the present application.

[0083] Figure 1 It is a schematic flowchart of a fault processing method based on an image forming device provided by the present application Figure 1 ;

[0084] Figure 2 It is a schematic diagram of a scenario of a fault processing method based on an image forming device provided by the present application;

[0085] Figure 3Flow schematic of a fault handling method based on an image forming apparatus provided by this application Figure 2 ;

[0086] Figure 4 Flow schematic of a fault handling method based on an image forming apparatus provided by this application Figure 3 ;

[0087] Figure 5 Structural schematic of a fault handling apparatus based on an image forming apparatus provided by this application Figure 1 ;

[0088] Figure 6 Structural schematic of a fault handling apparatus based on an image forming apparatus provided by this application Figure 2 ;

[0089] Figure 7 Structural schematic diagram of an image forming apparatus provided by an embodiment of this application.

[0090] Through the above-mentioned drawings, specific embodiments of this application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. Specific Embodiments

[0091] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. On the contrary, they are merely examples of devices and methods consistent with some aspects of this application.

[0092] Currently, image forming apparatuses such as printers and copier contain a fixing device. Under high temperature and high pressure, the fixing device melts the developer and infiltrates it into the paper fibers. Since the fixing device will reach a very high temperature during the fixing process, it is necessary to detect the temperature of the fixing device and activate safety protection when overheating occurs. In addition, common heating methods of the fixing device include halogen lamp heating, ceramic heating, electromagnetic induction heating, etc. For different heating methods and printing modes, different heating control strategies need to be designed to ensure good fixing effect and printing efficiency.

[0093] In one example, current fusing devices typically use thermistors to measure the heating temperature of the fusing device. Through the thermistor, it can be determined whether the fusing device is heated to the preset temperature and whether the fusing device is overheated. When the fusing device is overheated, the image forming device can timely disconnect the heating operation to avoid safety accidents such as fires. However, in the prior art, during long-term use, it is possible for the thermistor itself to malfunction. At this time, the faulty thermistor will read abnormal fusing temperature data. If the read temperature is abnormally high, it will trigger the overheat protection of the image forming device; if the read temperature is abnormally low, it may miss the detection of overheating situations, causing danger, and further leading to frequent failures of the fusing device in the image forming device, resulting in printing failures.

[0094] Combined with the above background, in the prior art, there is a technical problem that the fusing device in the image forming device is prone to failure, resulting in printing failures.

[0095] A fault handling method based on an image forming device provided in this application can effectively identify a faulty thermistor when a certain thermistor malfunctions, and timely generate a fault solution and execute the fault solution, solving the problems that the printing operation cannot be completed when an individual thermistor in the fusing device fails, and the risk of missed detection of overheating may occur when an individual thermistor fails.

[0096] The technical solution of this application and how the technical solution of this application solves the above technical problems will be described in detail below with specific embodiments. These specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will be described below in conjunction with the accompanying drawings.

[0097] Figure 1 It is a flow schematic diagram of a fault handling method based on an image forming device provided in this application Figure 1 As Figure 1 shown, the method includes:

[0098] S201. During the printing process, determine at least one thermistor corresponding to the current printing job.

[0099] Exemplarily, the execution subject of this embodiment can be an image forming device, or a terminal device, or a fault handling device or equipment based on the image forming device, or other devices or equipment that can execute this embodiment, and no limitation is made thereto. In this embodiment, the execution subject is introduced as an image forming device.

[0100] First, the image forming device is provided with a fusing device for fusing and heating. Taking ceramic heating as an example for the fusing device, ceramic heating has the advantages of fast heating and precise temperature control. The heating component of the fusing device is a ceramic sheet. Figure 2A schematic diagram of a scenario for a fault handling method based on an image forming apparatus provided in this application is as follows Figure 2 As shown, multiple thermistors are provided on the ceramic sheet, namely a first thermistor R1, a second thermistor R2, and a third thermistor R3; the first thermistor R1 is located at one end of the ceramic sheet, the second thermistor R2 is located at the center position of the ceramic sheet, and the third thermistor R3 is located between the end and the center position on the other side of the ceramic sheet; the distance between R1 and R2 is defined as S1, and the distance between R2 and R3 is defined as S2. According to the working characteristics of the ceramic sheet, when the ceramic sheet is energized and heated, the temperature in the middle is higher than that at both ends, and the temperatures of points at the same distance from the midpoint tend to be the same, that is, if S1 and S2 are the same, the temperatures at R1 and R3 should be the same. And when Figure 2 As shown in Figure 2 , when S1 > S2, the temperature at R2 is the highest, and the temperature at R1 is lower than the temperature at R3.

[0101] In this step, during the printing process, determine the thermistor required for the current printing job. Specifically, the thermistor required for the current printing job can be determined according to the paper width W. The paper width W can be specified by the user, obtained according to the paper size detected by the paper cassette / paper feed tray, or obtained according to the actual width detected by the sensor during the paper feeding process, and no limitation is made thereto. During the paper feeding process, the printer will correct the deviation of the paper so that the paper will be centered and will not deviate to a certain end. That is, since R2 is set at the center position, any paper passing through will cover the R2 area. Therefore, R2 can be used as a reference, and the thermistor required for any printing job includes R2. It should be noted that Figure 2 The number, position, and example of the resistors in Figure 2 are for example only, and no limitation is made thereto.

[0102] For example, in the first case, when W < 2 * S2, the paper can only cover R2 when passing through the fixing device, and cannot cover R1 or R3. At this time, the thermistor required for the current printing job is R2. In the second case, when 2 * S2 <= W < 2 * S1, the paper can cover R2 and R3 when passing through the fixing device. At this time, the thermistors required for the current printing job are R2 and R3. In the third case, when W <= 2 * S1, the paper can cover R1, R2, and R3 when passing through the fixing device. At this time, the thermistors required for the current printing job are R1, R2, and R3.

[0103] S202. Obtain the voltage value of each thermistor.

[0104] Exemplarily, in the first case, when W < 2*S2, the paper can only cover R2 when passing through the fixing device, and cannot cover R1 or R3. At this time, only the voltage data V2 of R2 is obtained, and the data of R1 and R3 is not combined. In the second case, when 2*S2 <= W < 2*S1, the paper can cover R2 and R3 when passing through the fixing device. Therefore, the voltage data V2 and V3 of R2 and R3 are obtained, and the data of R1 is not combined. In the third case, when W <= 2*S1, the paper can cover R1, R2, and R3 when passing through the fixing device. Therefore, the voltage data V1, V2, and V3 of R1, R2, and R3 are obtained.

[0105] S203. According to the preset fault identification mode and voltage value, identify each thermistor to obtain the status information of each thermistor; wherein, the fault identification mode is used to indicate the fault identification information; the status information is used to indicate whether the thermistor has a fault.

[0106] Exemplarily, the fault identification mode is used to indicate the fault identification information, and the fault identification information includes a first temperature correction coefficient K2 and a second temperature correction coefficient K1. Among them, K2 is the temperature correction coefficient of R3 and R2, K2 = V2 / V3, and K1 is the temperature correction coefficient of R1 and R2, K1 = V2 / V1. In this step, since the voltage values of the thermistors at different positions are different, according to the preset fault identification mode and the voltage values of the thermistors at different positions, each thermistor is identified to obtain the status information of each thermistor.

[0107] Specifically, in the first case, Figure 3 is a schematic flow of a fault handling method based on an image forming apparatus provided by the present application Figure 2 , as Figure 3 shown, when W < 2*S2, only the voltage data V2 of R2 is obtained, and it is determined whether V2 is equal to the preset voltage threshold 0. If V2 = 0, the status information of the thermistor R2 is determined to be faulty;

[0108] In the second case, as Figure 3 shown, when 2*S2 <= W < 2*S1, the voltage data V2 and V3 of R2 and R3 are obtained, and it is determined whether V3 * K2 is equal to V2. If V3*K2 ≠ V2, at least one of the thermistor R2 and the thermistor R3 is determined to be a faulty resistor.

[0109] In the third case, as Figure 3 shown, when W <= 2*S1, R1, R2, and R3 have been obtained, and the voltage data V1, V2, and V3 of R1, R2, and R3 have been obtained. According to V1, V2, and V3, the fault conditions of R2, R1, and R3 are judged in turn:

[0110] First, determine the first product V3*K2 of the first temperature correction coefficient K2 and the voltage value V3 of the third thermistor, and the second product V1*K1 of the second temperature correction coefficient K1 and the voltage value V1 of the first thermistor. If V2 = V3*K2 and V2 = V1*K1 are satisfied, it indicates that the status information of R1, R2, and R3 is all normal. If V2 = V3*K2 and V2 = V1*K1 are not satisfied, that is, V2 ≠ V3*K2 and / or V2 ≠ V1*K1, then judge and compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If (V3*K2 = V1*K1) ≠ V2 is satisfied, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal.

[0111] If (V3*K2 = V1*K1) ≠ V2 is not satisfied, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If V3*K2 = V2 and V1*K1 ≠ V2 are satisfied, it is determined that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

[0112] If V3*K2 = V2 and V1*K1 ≠ V2 are not satisfied, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If V1*K1 = V2 and V3*K2 ≠ V2 are satisfied, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

[0113] If V1*K1 = V2 and V3*K2 ≠ V2 are not satisfied, it is determined that the status information of the first thermistor, the second thermistor, and the third thermistor is all faulty.

[0114] A fault handling method based on an image forming apparatus provided by an embodiment of the present application, during the printing process, determines at least one thermistor corresponding to the current printing job. Obtains the voltage value of each thermistor. According to a preset fault recognition mode and the voltage value, performs recognition processing on each thermistor to obtain the status information of each thermistor; wherein, the fault recognition mode is used to indicate fault recognition information; the status information is used to indicate whether the thermistor has a fault. In this solution, the thermistors required for the current printing job are determined, and the voltage value of each thermistor is obtained. According to the preset fault recognition mode and the voltage value of each thermistor, it is determined whether each thermistor has a fault. Therefore, when a certain thermistor fails, the faulty thermistor can be effectively identified in a timely manner, avoiding the problems that the printing job cannot be completed when individual thermistors in the fixing device fail, and the overheat risk may be missed when individual thermistors fail, so as to achieve the effect of avoiding the fixing device in the image forming apparatus from malfunctioning and causing printing failures.

[0115] Figure 4 Schematic flow of a fault handling method based on an image forming apparatus provided by the present application Figure 3 , as Figure 4 shown, on the basis of the Figure 1 embodiment, the fault handling method based on the image forming apparatus is described in detail. The method includes:

[0116] S301. During the printing process, determine at least one thermistor corresponding to the current printing job.

[0117] In one example, the image forming apparatus is provided with a ceramic sheet for fixing and heating, and a plurality of thermistors are arranged on the ceramic sheet; wherein, the first thermistor is located at one end of the ceramic sheet, the second thermistor is located at the central position of the ceramic sheet, and the third thermistor is located between the other end and the central position of the ceramic sheet.

[0118] Exemplarily, this step can refer to Figure 1 step 201 in

[0119] S302. Obtain the voltage value of each thermistor.

[0120] Exemplarily, this step can refer to Figure 1 step 202 in

[0121] S303. According to the voltage value of the thermistors at different positions and the temperature correction coefficient in the preset fault recognition mode, perform recognition processing on each thermistor to obtain the status information of each thermistor; wherein, the image forming apparatus is provided with a plurality of thermistors at different positions.

[0122] In one example, step 303 includes three implementation manners:

[0123] The first implementation manner of step 303: If the print job corresponds to a thermistor and the voltage value of the thermistor is a preset voltage threshold, then determine that the status information of the thermistor is a fault.

[0124] The second implementation manner of step 303: The print job corresponds to two thermistors, namely a second thermistor and a third thermistor; determine the product of the first temperature correction coefficient in the fault recognition mode and the voltage value of the third thermistor; if it is determined that the product is not equal to the voltage value of the second thermistor, then determine that the status information of the second thermistor is a fault, and / or, the status information of the third thermistor is a fault.

[0125] The third implementation manner of step 303: The print job corresponds to three thermistors, namely a first thermistor, a second thermistor and a third thermistor; determine the first product of the first temperature correction coefficient in the fault recognition mode and the voltage value of the third thermistor, and the second product of the second temperature correction coefficient and the voltage value of the first thermistor; if it is determined that the voltage value of the second thermistor is equal to the first product and the voltage value of the second thermistor is equal to the second product, then determine that the status information of the first thermistor, the second thermistor and the third thermistor are all normal.

[0126] In one example, the third implementation manner further includes: If it is determined that the voltage value of the second thermistor is not equal to the first product, and / or, the voltage value of the second thermistor is not equal to the second product, then compare the relationship among the first product, the second product and the voltage value of the second thermistor; if it is determined that the first product is equal to the second product and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is normal, the status information of the second thermistor is a fault, and the status information of the third thermistor is normal.

[0127] In one example, the third implementation manner further includes: If it is determined that the first product is not equal to the second product, and / or, the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product and the voltage value of the second thermistor; if it is determined that the first product is equal to the voltage value of the second thermistor and the second product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is a fault, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

[0128] In one example, the third implementation method further includes: if it is determined that the first product is not equal to the voltage value of the second thermistor, and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor; if it is determined that the second product is equal to the voltage value of the second thermistor and the first product is not equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

[0129] In one example, the third implementation method further includes: if it is determined that the second product is not equal to the voltage value of the second thermistor, and / or the first product is equal to the voltage value of the second thermistor, then determine that the status information of the first thermistor, the second thermistor, and the third thermistor are all faulty.

[0130] Exemplarily, since the voltage values of the thermistors at different positions are different, according to the voltage values of the thermistors at different positions and the temperature correction coefficients in the preset fault recognition mode, each thermistor is identified to obtain the status information of each thermistor.

[0131] Specifically, in the first implementation method, W < 2 * S2, as Figure 3 shown, the printing job corresponds to a thermistor R2, and if it is determined that the voltage value V2 of the thermistor R2 is the preset voltage threshold 0, then determine that the status information of the thermistor R2 is faulty.

[0132] In the second implementation method, 2 * S2 <= W < 2 * S1, as Figure 3 shown, the printing job corresponds to two thermistors, namely the second thermistor R2 and the third thermistor R3. Determine the product of the first temperature correction coefficient K2 in the fault recognition mode and the voltage value V3 of the third thermistor, and judge whether this product is equal to the voltage value of the second thermistor. If it is determined that the product is not equal to the voltage value of the second thermistor, then determine that at least one of the second thermistor and the third thermistor is a faulty resistor, and it is recommended to stop the machine. If it is determined that the product is equal to the voltage value of the second thermistor, then determine that both the second thermistor and the third thermistor are normal resistors.

[0133] In the third implementation method, W <= 2 * S1, as Figure 3 shown, the printing job corresponds to three thermistors, namely the first thermistor R1, the second thermistor R2, and the third thermistor R3. The voltage data V1, V2, and V3 of R1, R2, and R3 are obtained, and according to V1, V2, and V3, the fault conditions of R2, R1, and R3 are judged in turn:

[0134] First, determine the first product V3*K2 of the first temperature correction coefficient K2 and the voltage value V3 of the third thermistor, and the second product V1*K1 of the second temperature correction coefficient K1 and the voltage value V1 of the first thermistor. If V2 = V3*K2 and V2 = V1*K1 are satisfied, it indicates that the status information of R1, R2, and R3 is normal. If V2 = V3*K2 and V2 = V1*K1 are not satisfied, that is, V2 ≠ V3*K2 and / or V2 ≠ V1*K1, it indicates that there is an abnormality, and it is necessary to further determine the faulty resistor and judge and compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If (V3*K2 = V1*K1) ≠ V2 is satisfied, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal. It is recommended to use the predicted theoretical voltage data of R2 subsequently.

[0135] If (V3*K2 = V1*K1) ≠ V2 is not satisfied, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If V3*K2 = V2 and V1*K1 ≠ V2 are satisfied, it is determined that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal. It is recommended to use the predicted theoretical voltage data of R1 subsequently.

[0136] If V3*K2 = V2 and V1*K1 ≠ V2 are not satisfied, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor. If V1*K1 = V2 and V3*K2 ≠ V2 are satisfied, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty. It is recommended to use the predicted theoretical voltage data of R3 subsequently.

[0137] If V1*K1 = V2 and V3*K2 ≠ V2 are not satisfied, it is determined that the status information of the first thermistor, the second thermistor, and the third thermistor are all faulty. It is recommended to perform a shutdown operation subsequently.

[0138] S304. Select a fault solution for the print job according to the status information and execute the fault solution.

[0139] In one example, step 304 includes two implementation manners:

[0140] The first implementation manner of step 304: If the status information of any thermistor indicates that the thermistor is faulty, determine that the fault solution for the print job is to stop the current print job; and according to the fault solution, stop the current print job and generate a fault prompt message.

[0141] The second implementation of step 304: Based on the voltage value of the thermistor corresponding to the printing job, the first temperature correction coefficient, and the second temperature correction coefficient, perform voltage prediction on the thermistor whose status information is characterized as a faulty state to obtain the theoretical voltage data of the faulty thermistor; update the voltage value of the faulty thermistor to the theoretical voltage data, and determine the fault solution for the printing job to execute the current printing job according to the theoretical voltage data; execute the current printing job according to the fault solution; and generate a fault prompt message after determining that the printing job is completed.

[0142] Exemplarily, the fault solutions for fault protection include directly stopping the machine and reporting a fault, that is, stopping the current printing job and generating a fault message; or, performing voltage prediction on the faulty thermistor to obtain the predicted voltage value, predicting the temperature value at the location of the faulty thermistor based on the predicted voltage value, using the predicted temperature value to replace the abnormal temperature value as the temperature at the location of the faulty thermistor, and stopping the machine and reporting a fault after completing the current printing job.

[0143] Specifically, in the first case of S203, since only the voltage value V2 of R2 is used to determine that R2 is faulty, only one thermistor is involved, and the fault identification mode cannot perform temperature prediction based on the temperature correction coefficient and one voltage value. At this time, directly stop the machine and report a fault. In the second case of S203, since it is determined that at least one of the thermistor R2 and the thermistor R3 is faulty, directly stop the machine and report a fault at this time. In the third case of S203, if R1, R2, and R3 are all faulty, directly stop the machine and report a fault. If any one or any two of R1, R2, and R3 are faulty, the data at the location of the faulty thermistor is not used, but the theoretical voltage data of the faulty thermistor is calculated based on the voltage and temperature correction coefficients, and then the temperature value at the location of the faulty thermistor is obtained based on the theoretical voltage data. Using this temperature value as the standard for judging whether it is overheated, when it is determined that this temperature value does not exceed the preset temperature threshold, stop the machine and report a fault after completing the current printing job.

[0144] Therefore, several thermistors are set at different positions of the fixing device as needed. Based on the distance relationship of multiple thermistors, when a certain thermistor fails, the voltage difference relationship corresponding to the distance between the thermistors is used to identify the faulty thermistor, and the theoretical value can be temporarily calculated to replace the measured value. Through this method, it can be realized that when a certain thermistor fails, it can effectively identify which specific thermistor is faulty, and it can also maintain the temperature judgment at the position of the faulty thermistor by calculating the theoretical value, so that the current printing task can be completed, and at the same time, the problem of overheating of the temperature at the fault position that cannot be judged due to the failure of the thermistor can be avoided. Further, in this solution, first, according to the width of the printing paper, it is judged which thermistors the printing paper will cover, and only the thermistors within the area covered by the paper are subjected to failure judgment, improving the accuracy of judgment.

[0145] A fault handling method based on an image forming apparatus provided by an embodiment of the present application determines at least one thermistor corresponding to a current printing job during printing. Obtain the voltage value of each thermistor. According to the voltage values of the thermistors at different positions and the temperature correction coefficients in the preset fault recognition mode, perform recognition processing on each thermistor to obtain the status information of each thermistor. According to the status information, select a fault solution for the printing job and execute the fault solution. Therefore, when a certain thermistor fails, the faulty thermistor can be identified in a timely and effective manner, and a fault solution can be generated in a timely manner, avoiding the problems that the printing job cannot be completed when an individual thermistor in the fixing device fails and the overheating risk may be missed when an individual thermistor fails, so as to achieve the effect of avoiding the fixing device in the image forming apparatus from malfunctioning and causing printing failure.

[0146] Figure 5 Structural schematic of a fault handling device based on an image forming apparatus provided by the present application Figure 1 , such as Figure 5 shown, the fault handling device 30 based on the image forming apparatus provided in this embodiment includes:

[0147] A first determination module 31, configured to determine at least one thermistor corresponding to a current printing job during printing.

[0148] A second determination module 32, configured to obtain the voltage value of each thermistor.

[0149] An identification module 33, configured to perform identification processing on each thermistor according to a preset fault recognition mode and voltage value to obtain the status information of each thermistor; wherein, the fault recognition mode is used to indicate fault recognition information; the status information is used to indicate whether the thermistor has failed.

[0150] The fault handling device based on the image forming apparatus in this embodiment can execute the technical solutions in the above method, and the specific implementation process and technical principle are the same, and will not be described here again.

[0151] Figure 6 Structural schematic of another fault handling device based on an image forming apparatus provided by an embodiment of the present application Figure 2 , on the basis of the embodiment shown in Figure 5 , as shown in Figure 6 , the image forming apparatus is provided with a ceramic sheet for fixing and heating, and a plurality of thermistors are arranged on the ceramic sheet.

[0152] Among them, the first thermistor is located at one end of one side of the ceramic sheet, the second thermistor is located at the central position of the ceramic sheet, and the third thermistor is located between the other end and the central position of the ceramic sheet.

[0153] In a possible implementation, the recognition module 33 includes:

[0154] A recognition unit 331, configured to perform recognition processing on each thermistor according to the voltage value of the thermistor at different positions and the temperature correction coefficient in the preset fault recognition mode, so as to obtain the status information of each thermistor; wherein, the image forming apparatus is provided with a plurality of thermistors at different positions.

[0155] In a possible implementation, the recognition unit 331 is specifically configured to:

[0156] If the print job corresponds to one thermistor and the voltage value of the thermistor is the preset voltage threshold, it is determined that the status information of the thermistor is a fault.

[0157] In a possible implementation, the print job corresponds to two thermistors, namely the second thermistor and the third thermistor; the recognition unit 331 is specifically configured to:

[0158] Determine the product of the first temperature correction coefficient in the fault recognition mode and the voltage value of the third thermistor.

[0159] If it is determined that the product is not equal to the voltage value of the second thermistor, it is determined that the status information of the second thermistor is a fault, and / or the status information of the third thermistor is a fault.

[0160] In a possible implementation, the print job corresponds to three thermistors, namely the first thermistor, the second thermistor and the third thermistor; the recognition unit 331 is specifically configured to:

[0161] Determine the first product of the first temperature correction coefficient in the fault recognition mode and the voltage value of the third thermistor, and the second product of the second temperature correction coefficient and the voltage value of the first thermistor;

[0162] If it is determined that the voltage value of the second thermistor is equal to the first product and the voltage value of the second thermistor is equal to the second product, it is determined that the status information of the first thermistor, the second thermistor and the third thermistor is all normal.

[0163] In a possible implementation, the device is further specifically configured to:

[0164] If it is determined that the voltage value of the second thermistor is not equal to the first product, and / or the voltage value of the second thermistor is not equal to the second product, compare the relationship among the first product, the second product and the voltage value of the second thermistor;

[0165] If it is determined that the first product is equal to the second product, and the second product is not equal to the voltage value of the second thermistor, then it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal.

[0166] In a possible implementation, the device is further specifically configured to:

[0167] If it is determined that the first product is not equal to the second product, and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0168] If it is determined that the first product is equal to the voltage value of the second thermistor, and the second product is not equal to the voltage value of the second thermistor, then it is determined that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

[0169] In a possible implementation, the device is further specifically configured to:

[0170] If it is determined that the first product is not equal to the voltage value of the second thermistor, and / or the second product is equal to the voltage value of the second thermistor, then compare the relationship among the first product, the second product, and the voltage value of the second thermistor;

[0171] If it is determined that the second product is equal to the voltage value of the second thermistor, and the first product is not equal to the voltage value of the second thermistor, then it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

[0172] In a possible implementation, the device is further specifically configured to:

[0173] If it is determined that the second product is not equal to the voltage value of the second thermistor, and / or the first product is equal to the voltage value of the second thermistor, then it is determined that the status information of the first thermistor, the second thermistor, and the third thermistor are all faulty.

[0174] In a possible implementation, the device further includes:

[0175] An execution module 41, configured to, after identifying each thermistor according to a preset fault identification mode and voltage value to obtain the status information of each thermistor, select a fault solution for the printing job according to the status information, and execute the fault solution.

[0176] In a possible implementation, the execution module 41 is specifically configured to:

[0177] If the status information of any thermistor indicates that the thermistor is faulty, determine the fault solution for the printing job as stopping the current printing job; and according to the fault solution, stop the current printing job and generate a fault prompt message.

[0178] In a possible implementation manner, the execution module 41 is specifically configured to:

[0179] Based on the voltage value of the thermistor corresponding to the printing job, the first temperature correction coefficient, and the second temperature correction coefficient, perform voltage prediction on the thermistor whose status information indicates a fault state to obtain the theoretical voltage data of the faulty thermistor;

[0180] Update the voltage value of the faulty thermistor to the theoretical voltage data, and determine the fault solution for the printing job as executing the current printing job according to the theoretical voltage data;

[0181] According to the fault solution, execute the current printing job; and after determining that the printing job is completed, generate a fault prompt message.

[0182] The fault processing device based on the image forming apparatus provided in this embodiment can execute the method provided in the above method embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here in this embodiment.

[0183] Figure 7 It is a schematic structural diagram of the image forming apparatus provided in this application. As Figure 7 shown, the image forming apparatus 50 provided in this embodiment includes: at least one processor 501 and a memory 502. Optionally, the device 50 further includes a communication component 503. Among them, the processor 501, the memory 502, and the communication component 503 are connected through a bus 504.

[0184] In a specific implementation process, at least one processor 501 executes the computer execution instructions stored in the memory 502, so that at least one processor 501 executes the above method.

[0185] The specific implementation process of the processor 501 can refer to the above method embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here in this embodiment.

[0186] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU for short), or may also be other general-purpose processors, digital signal processors (DSP for short), application specific integrated circuits (ASIC for short), etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

[0187] The memory may include a random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory.

[0188] The bus may be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0189] This application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0190] This application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the processor executes the computer-executable instructions, the above method is implemented.

[0191] The above-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk or an optical disk. The readable storage medium can be any available medium accessible by a general-purpose or special-purpose computer.

[0192] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in a device.

[0193] The division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the couplings or direct couplings or communication connections shown or discussed between each other can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0194] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0195] Furthermore, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0196] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.

[0197] Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including those of the above method embodiments; and the aforementioned storage medium includes: various media such as ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0198] Finally, it should be noted that: After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present invention. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed in the present invention. It is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A fault handling method based on an image forming device, characterized in that: include: During the printing process, determining at least one thermistor corresponding to the current print job; Obtaining a voltage value of each thermistor; According to a preset fault identification mode and the voltage value, each of the thermistors is identified and processed to obtain status information of each of the thermistors; wherein the fault identification mode is used to indicate fault identification information; and the status information is used to indicate whether the thermistor has a fault; The step of performing identification processing on each of the thermistors according to the preset fault identification mode and the voltage value to obtain status information of each of the thermistors includes: According to the voltage values ​​of thermistors at different positions and the temperature correction coefficient in the preset fault identification mode, identification processing is performed on each thermistor to obtain the state information of each thermistor; wherein the image forming device is provided with a plurality of thermistors at different positions; The printing job corresponds to two thermistors, namely the second thermistor and the third thermistor; the identification process is performed on each thermistor according to the voltage values ​​of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor, including: determining a product of a first temperature correction coefficient and a voltage value of a third thermistor in the fault identification mode; If it is determined that the product is not equal to the voltage value of the second thermistor, it is determined that the state information of the second thermistor is a fault, and / or the state information of the third thermistor is a fault.

2. The method according to claim 1, characterized in that The image forming device is provided with a ceramic sheet for fixing heating, and a plurality of thermistors are provided on the ceramic sheet; The first thermistor is located at an end of one side of the ceramic sheet, the second thermistor is located at a center of the ceramic sheet, and the third thermistor is located between an end of the other side of the ceramic sheet and the center.

3. The method according to claim 1, characterized in that The step of performing identification processing on each thermistor according to the voltage values ​​of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor includes: If the print job corresponds to a thermistor, and the voltage value of the thermistor is a preset voltage threshold, the state information of the thermistor is determined to be a fault.

4. The method according to claim 1, characterized in that: The printing job corresponds to three thermistors, namely, a first thermistor, a second thermistor, and a third thermistor; the identification process is performed on each thermistor according to the voltage values ​​of the thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor, including: Determining a first product of a first temperature correction coefficient and a voltage value of a third thermistor and a second product of a second temperature correction coefficient and a voltage value of a first thermistor in the fault identification mode; If it is determined that the voltage value of the second thermistor is equal to the first product, and the voltage value of the second thermistor is equal to the second product, it is determined that the status information of the first thermistor, the second thermistor and the third thermistor are all normal.

5. The method according to claim 4, characterized in that The method further comprises: If it is determined that the voltage value of the second thermistor is not equal to the first product, and / or the voltage value of the second thermistor is not equal to the second product, comparing the relationship between the first product, the second product, and the voltage value of the second thermistor; If it is determined that the first product is equal to the second product, and the second product is not equal to the voltage value of the second thermistor, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is faulty, and the status information of the third thermistor is normal.

6. The method according to claim 5, characterized in that The method further comprises: If it is determined that the first product is equal to the voltage value of the second thermistor and the second product is not equal to the voltage value of the second thermistor, it is determined that the status information of the first thermistor is faulty, the status information of the second thermistor is normal, and the status information of the third thermistor is normal.

7. The method according to claim 6, characterized in that The method further comprises: If it is determined that the second product is equal to the voltage value of the second thermistor, and the first product is not equal to the voltage value of the second thermistor, it is determined that the status information of the first thermistor is normal, the status information of the second thermistor is normal, and the status information of the third thermistor is faulty.

8. The method according to claim 7, characterized in that The method further comprises: If it is determined that the second product and the voltage value of the second thermistor are not equal, and the first product and the voltage value of the second thermistor are not equal, it is determined that the status information of the first thermistor, the second thermistor and the third thermistor are all faulty.

9. The method according to any one of claims 1 to 8, characterized in that: After performing identification processing on each thermistor according to the preset fault identification mode and the voltage value to obtain status information of each thermistor, the method further includes: A failure solution for the print job is selected based on the status information, and the failure solution is executed.

10. The method according to claim 9, characterized in that Selecting a failure solution for the print job according to the status information and executing the failure solution includes: If the status information of any thermistor indicates that the thermistor is faulty, determine that the fault solution for the printing job is to stop the current printing job; and according to the fault solution, stop the current printing job and generate fault prompt information.

11. The method according to claim 9, characterized in that Selecting a failure solution for the print job according to the status information and executing the failure solution includes: According to the voltage value, the first temperature correction coefficient, and the second temperature correction coefficient of the thermistor corresponding to the print job, a voltage prediction is performed on the thermistor whose status information is characterized as a fault state, so as to obtain theoretical voltage data of the faulty thermistor; wherein the preset fault identification mode includes a temperature correction coefficient, and the temperature correction coefficient includes a preset first temperature correction coefficient and a second temperature correction coefficient; Updating the voltage value of the faulty thermistor to the theoretical voltage data, and determining that the fault solution for the printing job is to execute the current printing job according to the theoretical voltage data; According to the fault solution, the current printing job is executed; and after determining that the printing job is completed, fault prompt information is generated.

12. A fault handling device based on an image forming device, characterized in that: include: A first determination module, used to determine at least one thermistor corresponding to a current print job during a printing process; A second determination module, used for obtaining a voltage value of each thermistor; an identification module, used to perform identification processing on each of the thermistors according to a preset fault identification mode and the voltage value, and obtain status information of each of the thermistors; wherein the fault identification mode is used to indicate fault identification information; and the status information is used to indicate whether the thermistor has a fault; The identification module comprises: an identification unit, configured to perform identification processing on each thermistor according to the voltage value of the thermistor at different positions and the temperature correction coefficient in the preset fault identification mode, so as to obtain the state information of each thermistor; wherein the image forming device is provided with a plurality of thermistors at different positions; The printing job corresponds to two thermistors, namely the second thermistor and the third thermistor; the identification unit is specifically used for: determining a product of a first temperature correction coefficient and a voltage value of a third thermistor in the fault identification mode; If it is determined that the product is not equal to the voltage value of the second thermistor, it is determined that the state information of the second thermistor is a fault, and / or the state information of the third thermistor is a fault.

13. An image forming device, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 11.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 11 when executed by a processor.

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