Fault processing method and device based on image forming device, image forming device and storage medium

Abstract

The embodiment of the invention provides a fault processing method and device based on an image forming device, the image forming device and a storage medium, and relates to the technical field of image forming. The method comprises the following steps: in a printing process, determining at least one thermistor corresponding to a current printing job; and acquiring the voltage value of each thermistor. Performing identification processing on each thermistor according to a preset fault identification mode and the voltage value to obtain state information of each thermistor; wherein the fault identification mode is used for indicating fault identification information; the state information is used for indicating whether the thermistor breaks down. The method is used for achieving the effect of avoiding printing failure caused by failure of the fixing device in the image forming device.

Description

Technical Field

[0001] The present application relates to the field of image forming technology, and in particular to a fault handling method and device based on an image forming device, an image forming device, and a storage medium. Background Art

[0002] At present, printers, copiers and other image forming devices contain fixing devices, which melt the developer and penetrate it into the paper fibers under high temperature and high pressure. 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 to avoid safety accidents and activate safety protection when overheating occurs.

[0003] In the prior art, the fixing device usually uses a thermistor to measure the heating temperature of the fixing device. The thermistor can be used to determine 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 device can disconnect the heating operation in time to avoid safety accidents such as fire.

[0004] However, in the prior art, during long-term use, the thermistor itself may fail. In this case, the failed thermistor will read abnormal fixing temperature data. If the read temperature is abnormally high, it will trigger the overheating protection of the image forming device; if the read temperature is abnormally low, the overheating situation may be missed, causing danger, and then the fixing device in the image forming device is prone to failure, resulting in printing failure. Summary of the invention

[0005] The embodiments of the present application provide a fault handling method, device, image forming device and storage medium based on an image forming device, so as to achieve the effect of avoiding printing failure caused by a fault in a fixing device in the image forming device.

[0006] In a first aspect, an embodiment of the present application provides a fault handling method based on an image forming device, comprising:

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

[0008] Obtaining a voltage value of each thermistor;

[0009] 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 thermistor; 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.

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

[0011] 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.

[0012] In a possible implementation manner, performing identification processing on each of the thermistors according to a preset fault identification mode and the voltage value to obtain status information of each of the thermistors includes:

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

[0014] In a possible implementation manner, the identification process is performed on each thermistor according to the voltage values ​​of 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 print job corresponds to a thermistor, and the voltage value of the thermistor is a preset voltage threshold, then the state information of the thermistor is determined to be a fault.

[0016] In a possible implementation manner, the print job corresponds to two thermistors, namely 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:

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

[0018] 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.

[0019] In a possible implementation manner, the print 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:

[0020] 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;

[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, it is determined that the status information of the first thermistor, the second thermistor and the third thermistor are 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, comparing the relationship between 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, 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.

[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 comparing 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, 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.

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

[0029] If it is determined that the first product and the voltage value of the second thermistor are not equal, and / or the second product and the voltage value of the second thermistor are equal, then comparing 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, the method further includes:

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

[0033] In a possible implementation manner, 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:

[0034] A failure solution for the print job is selected based on the status information, and the failure solution is executed.

[0035] In a possible implementation, 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 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.

[0037] In a possible implementation, 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, a voltage prediction is performed on the thermistor whose status information indicates a faulty state, to obtain theoretical voltage data of the faulty thermistor;

[0039] 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;

[0040] 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.

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

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

[0043] A second determination module, used for obtaining a voltage value of each thermistor;

[0044] The identification module is used to perform identification processing on each of the thermistors according to a preset fault identification mode and the voltage value 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.

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

[0046] 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.

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

[0048] The identification unit is used to identify each thermistor according to the voltage value of the thermistor 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 device 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 print job corresponds to a thermistor, and the voltage value of the thermistor is a preset voltage threshold, then the state information of the thermistor is determined to be 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 used to:

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

[0053] 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.

[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 identification unit is specifically used to:

[0055] 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;

[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, it is determined that the status information of the first thermistor, the second thermistor and the third thermistor are all normal.

[0057] In a possible implementation manner, the device is further specifically used for:

[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, comparing the relationship between 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, 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.

[0060] In a possible implementation manner, the device is further specifically used for:

[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 comparing 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, 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.

[0063] In a possible implementation manner, the device is further specifically used for:

[0064] If it is determined that the first product and the voltage value of the second thermistor are not equal, and / or the second product and the voltage value of the second thermistor are equal, then comparing 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 used for:

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

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

[0069] The execution module is used to identify each of the thermistors according to the preset fault identification mode and the voltage value, obtain the status information of each thermistor, select the fault solution of the printing 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 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.

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

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

[0074] 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;

[0075] 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.

[0076] In a third aspect, an embodiment of the present application provides an image forming device, 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 executes the above first aspect and / or various possible implementations 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. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementations of the first aspect.

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

[0081] The embodiment of the present application provides a fault handling method, device, image forming device and storage medium based on an image forming device. During the printing process, at least one thermistor corresponding to the current printing job is determined. The voltage value of each thermistor is obtained. According to the preset fault identification mode and voltage value, each thermistor is identified and processed 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 failed. In this scheme, the thermistor required for the current printing job is determined, and the voltage value of each thermistor is obtained. According to the preset fault identification mode and the voltage value of each thermistor, it is determined whether each thermistor has failed. Therefore, when a thermistor fails, the failed thermistor can be identified in a timely and effective manner, avoiding the problem 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 failure of the fixing device in the image forming device to cause printing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0083] Figure 1 A schematic diagram of a fault handling method based on an image forming device provided in this application Figure 1 ;

[0084] Figure 2 A schematic diagram of a scenario of a fault handling method based on an image forming device provided in the present application;

[0085] Figure 3A schematic diagram of a fault handling method based on an image forming device provided in this application Figure 2 ;

[0086] Figure 4 A schematic diagram of a fault handling method based on an image forming device provided in this application Figure 3 ;

[0087] Figure 5 A schematic diagram of a fault handling device based on an image forming device provided in this application Figure 1 ;

[0088] Figure 6 A schematic diagram of a fault handling device based on an image forming device provided in this application Figure 2 ;

[0089] Figure 7 A schematic diagram of the structure of an image forming device provided in an embodiment of the present application.

[0090] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0091] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying 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 the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.

[0092] At present, printers, copiers and other image forming devices contain fixing devices, which melt the developer and penetrate it into the paper fibers under high temperature and high pressure. 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. In addition, common heating methods for fixing devices include halogen lamp heating, ceramic heating, electromagnetic induction heating, etc. Different heating control strategies need to be designed for different heating methods and printing modes to ensure good fixing effect and printing efficiency.

[0093] In one example, current fixing devices usually use thermistors to measure the heating temperature of the fixing device. The thermistors can be used to determine whether the fixing device has been heated to a preset temperature and whether the fixing device is overheated. When the fixing device is overheated, the image forming device can promptly disconnect the heating operation to avoid fire and other safety accidents. However, in the prior art, during long-term use, the thermistor itself may fail. At this time, the failed thermistor will read abnormal fixing temperature data. If the read temperature is abnormally high, the overheat protection of the image forming device will be triggered; if the read temperature is abnormally low, the overheating situation may be missed, causing danger, and then the fixing device in the image forming device is prone to failure, resulting in printing failure.

[0094] In view of the above background, it can be known that in the prior art, there is a technical problem that a fixing device in an image forming device is prone to malfunction, resulting in printing failure.

[0095] The present application provides a fault handling method based on an image forming device. When a thermistor fails, the faulty thermistor can be effectively identified, and a fault plan can be generated and executed in a timely manner, thereby solving the problem that a printing job cannot be completed when individual thermistors in a fixing device fail, and the problem that an overheating risk may be missed when individual thermistors fail.

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

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

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

[0099] For example, the execution subject of this embodiment may 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 there is no limitation to this. In this embodiment, the execution subject is described as an image forming device.

[0100] First, the image forming apparatus is provided with a fixing device for fixing heating. The fixing device takes ceramic heating as an example. Ceramic heating has the advantages of fast heating and precise temperature control. The heating component of the fixing device is a ceramic sheet. Figure 2A schematic diagram of a scenario of a fault handling method based on an image forming device provided in this application, such as Figure 2 As shown, a plurality of thermistors are arranged on the ceramic sheet, namely the first thermistor R1, the second thermistor R2 and the third thermistor R3; the first thermistor R1 is located at the end of one side of the ceramic sheet, the second thermistor R2 is located at the center of the ceramic sheet, and the third thermistor R3 is located between the end and the center of 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 powered on and heated, the middle temperature is higher than the temperature at both ends, and the temperatures of the points at the same distance from the midpoint tend to be consistent, that is, if S1 and S2 are the same, the temperatures at R1 and R3 should be the same. And when Figure 2 When S1>S2 is shown, 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, the thermistor required for the current print job is determined. Specifically, the thermistor required for the current print job can be determined based on the paper width W. The paper width W can be specified by the user, or it can be obtained based on the paper size detected by the paper box / paper feed tray, or it can be obtained based on the actual width detected by the sensor during the paper feeding process. There is no limitation on this. During the paper feeding process, the printer will correct the paper so that the paper will be centered and not biased to one end. That is, since R2 is set in 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 print job includes R2. It should be noted that Figure 2 The number, position, and examples of resistors are only examples and are not intended to be limiting.

[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 to be used in 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 to be used in 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 to be used in the current printing job are R1, R2 and R3.

[0103] S202, obtaining the voltage value of each thermistor.

[0104] 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, only the voltage data V2 of R2 is obtained, and the data of R1 and R3 are 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, so 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, so the voltage data V1, V2, V3 of R1, R2 and R3 are obtained.

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

[0106] Exemplarily, the fault identification mode is used to indicate fault identification information, and the fault identification information includes a first temperature correction coefficient K2 and a second temperature correction coefficient K1. 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 thermistors at different positions are different, each thermistor is identified and processed according to the preset fault identification mode and the voltage values ​​of thermistors at different positions to obtain the status information of each thermistor.

[0107] Specifically, in the first case, Figure 3 A schematic diagram of a fault handling method based on an image forming device provided in this application Figure 2 ,like Figure 3 As shown, when W<2*S2, only the voltage data V2 of R2 is obtained to determine whether V2 is equal to the preset voltage threshold 0. If V2=0, it is determined that the state information of thermistor R2 is a fault;

[0108] In the second case, if Figure 3 As 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, it is determined that at least one of the thermistors R2 and R3 is a faulty resistor.

[0109] In the third case, if Figure 3 As shown, when W<=2*S1, R1, R2 and R3 have been obtained, and the voltage data V1, V2, V3 of R1, R2 and R3 have been obtained. According to V1, V2, V3, the fault conditions of R2, R1, 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 in the fault identification mode. If V2=V3*K2 and V2=V1*K1 are satisfied, it means that the status information of R1, R2 and R3 are all normal. If V2=V3*K2 and V2=V1*K1 are not satisfied, that is, V2≠V3*K2 and / or V2≠V1*K1, then the relationship between the first product, the second product and the voltage value of the second thermistor is determined and compared. 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, the relationship among the first product, the second product, and the voltage value of the second thermistor is compared. If V3*K2=V2 and V1*K1≠V2 is 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, the relationship among the first product, the second product, and the voltage value of the second thermistor is compared. 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 are all faulty.

[0114] The embodiment of the present application provides a fault handling method based on an image forming device. During the printing process, at least one thermistor corresponding to the current printing job is determined. The voltage value of each thermistor is obtained. According to the preset fault identification mode and voltage value, each thermistor is identified and processed 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 failed. In this scheme, the thermistor required for the current printing job is determined, and the voltage value of each thermistor is obtained. According to the preset fault identification mode and the voltage value of each thermistor, it is determined whether each thermistor has failed. Therefore, when a thermistor fails, the faulty thermistor can be identified in a timely and effective manner, avoiding the problem 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 failure of the fixing device in the image forming device to cause printing failure.

[0115] Figure 4 A schematic diagram of a fault handling method based on an image forming device provided in this application Figure 3 ,like Figure 4 As shown, in this embodiment Figure 1 Based on the embodiment, a fault handling method based on an image forming device is described in detail, and the method includes:

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

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

[0118] For example, this step can be referred to Figure 1 Step 201 in the above is not described in detail.

[0119] S302, obtaining the voltage value of each thermistor.

[0120] For example, this step can be referred to Figure 1 Step 202 in will not be described in detail.

[0121] S303, performing identification processing on each thermistor according to the voltage values ​​of thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain status information of each thermistor; wherein the image forming device is provided with a plurality of thermistors at different positions.

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

[0123] A first implementation of step 303: if the print job corresponds to a thermistor, and the voltage value of the thermistor is a preset voltage threshold, then the state information of the thermistor is determined to be a fault.

[0124] A second implementation of step 303: the print job corresponds to two thermistors, namely the second thermistor and the third thermistor; determining the product of the first temperature correction coefficient in the fault identification 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, determining that the status information of the second thermistor is a fault, and / or, the status information of the third thermistor is a fault.

[0125] A third implementation method of step 303: the print job corresponds to three thermistors, namely the first thermistor, the second thermistor and the third thermistor; determining a first product of a first temperature correction coefficient 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 in a 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, then determining 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 method also 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 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, then determining 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.

[0127] In one example, the third implementation method also 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 comparing the relationship between the first product, the second product, and the voltage value of the second thermistor; if it is determined that the voltage value of the first product and the second thermistor are equal, and the second product is not equal to the voltage value of the second thermistor, then determining 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.

[0128] In one example, the third implementation method also includes: if it is determined that the voltage value of the first product and the second thermistor are not equal, and / or the voltage value of the second product and the second thermistor are equal, then comparing the relationship between the first product, the second product, and the voltage value of the second thermistor; if it is determined that the voltage value of the second product and the second thermistor are equal, and the voltage value of the first product and the second thermistor are not equal, then determining 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 also includes: if it is determined that the second product and the voltage value of the second thermistor are not equal, and / or the first product and the voltage value of the second thermistor are equal, then it is determined 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 thermistors at different positions are different, each thermistor is identified and processed according to the voltage values ​​of thermistors at different positions and the temperature correction coefficient in the preset fault identification mode to obtain the status information of each thermistor.

[0131] Specifically, in the first implementation, W<2*S2, such as Figure 3 As shown, the print job corresponds to a thermistor R2, and when it is determined that the voltage value V2 of the thermistor R2 is the preset voltage threshold value 0, the status information of the thermistor R2 is determined to be a fault.

[0132] In the second implementation, 2*S2<=W<2*S1, such as Figure 3 As shown, the print job corresponds to two thermistors, namely the second thermistor R2 and the third thermistor R3. The product of the first temperature correction coefficient K2 in the fault identification mode and the voltage value V3 of the third thermistor is determined, and it is judged whether the 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, at least one of the second thermistor and the third thermistor is determined to be a faulty resistor, and it is recommended to shut down. If it is determined that the product is equal to the voltage value of the second thermistor, it is determined that both the second thermistor and the third thermistor are normal resistors.

[0133] In the third implementation, W <= 2*S1, such as Figure 3 As shown, the print 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. 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 in the fault identification mode. If V2=V3*K2 and V2=V1*K1 are satisfied, it means that the status information of R1, R2 and R3 are all normal. If V2=V3*K2 and V2=V1*K1 are not satisfied, that is, V2≠V3*K2 and / or V2≠V1*K1, it means that there is an abnormality, and it is necessary to further determine the fault resistance, and judge and compare the relationship between 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, and it is recommended to use the predicted theoretical voltage data of R2 in the future.

[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, 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. It is recommended to use the predicted theoretical voltage data of R1 in the future.

[0136] If V3*K2=V2 and V1*K1≠V2 are not satisfied, then the relationship among the first product, the second product, and the voltage value of the second thermistor is compared. If V1*K1=V2 and V3*K2≠V2 are satisfied, 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, and it is recommended to use the predicted theoretical voltage data of R3 in the future.

[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, and it is recommended to perform a shutdown operation subsequently.

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

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

[0140] A first implementation 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 fault prompt information.

[0141] A second implementation method of step 304 is: based on the voltage value of the thermistor corresponding to the print job, the first temperature correction coefficient, and the second temperature correction coefficient, a voltage prediction is performed on the thermistor whose status information indicates a faulty state, and theoretical voltage data of the faulty thermistor is obtained; the voltage value of the faulty thermistor is updated to the theoretical voltage data, and a fault solution for the print job is determined to be executing the current print job according to the theoretical voltage data; according to the fault solution, the current print job is executed; and after determining that the print job is completed, a fault prompt message is generated.

[0142] Exemplarily, the fault protection fault scheme includes directly shutting down and reporting the fault, that is, stopping the current printing job and generating fault information; or, performing voltage prediction on the faulty thermistor to obtain a predicted voltage value, predicting the temperature value at the faulty thermistor based on the predicted voltage value, using the predicted temperature value instead of the abnormal temperature value as the temperature at the faulty thermistor, and shutting down and reporting the 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 judge the fault of R2, only one thermistor is involved, and the fault identification mode cannot predict the temperature based on the temperature correction coefficient and a voltage value, and the machine is directly shut down and reported as a fault. In the second case of S203, since at least one of the thermistors R2 and R3 is judged to be faulty, the machine is directly shut down and reported as a fault. In the third case of S203, if R1, R2, and R3 are all faulty, the machine is directly shut down and reported as a fault. If any one or any two of R1, R2, and R3 are faulty, the data at 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 faulty thermistor is obtained based on the theoretical voltage data, and the temperature value is used as the standard for judging whether it is overheated. When it is determined that the temperature value does not exceed the preset temperature threshold, the machine is shut down and reported as a fault after the current printing job is completed.

[0144] Therefore, several thermistors are set at different positions of the fixing device as needed. Based on the distance relationship between multiple thermistors, when a thermistor fails, the voltage difference relationship corresponding to the distance between thermistors is used to identify the failed thermistor, and the theoretical value can be temporarily calculated to replace the measured value. Through this method, it is possible to effectively identify which specific thermistor is faulty when a thermistor fails, and to maintain the temperature judgment of the faulty thermistor position by calculating the theoretical value, so that the current printing task can be completed. At the same time, it can also avoid the problem of being unable to judge the temperature of the faulty position due to the thermistor failure. Overheating. Furthermore, this solution first determines which thermistors will be covered by the printing paper based on the width of the printing paper. Only the thermistors in the area covered by the paper are judged as failed, thereby improving the accuracy of the judgment.

[0145] The embodiment of the present application provides a fault handling method based on an image forming device. During the printing process, at least one thermistor corresponding to the current print job is determined. The voltage value of each thermistor is obtained. According to the voltage values ​​of thermistors at different positions and the temperature correction coefficient in the preset fault identification mode, each thermistor is identified and processed to obtain the status information of each thermistor. According to the status information, a fault solution for the print job is selected and executed. Therefore, when a 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, thereby avoiding the problem of being unable to complete the print job 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 failure of the fixing device in the image forming device to cause printing failure.

[0146] Figure 5 A schematic diagram of a fault handling device based on an image forming device provided in this application Figure 1 ,like Figure 5 As shown, the fault handling device 30 based on the image forming device provided in this embodiment includes:

[0147] The first determining module 31 is used to determine at least one thermistor corresponding to a current printing job during the printing process.

[0148] The second determining module 32 is used to obtain the voltage value of each thermistor.

[0149] The identification module 33 is used to identify each thermistor according to a preset fault identification mode and voltage value to obtain status information of each thermistor; wherein the fault identification mode is used to indicate the fault identification information; and the status information is used to indicate whether the thermistor has a fault.

[0150] The fault handling device based on the image forming device of this embodiment can execute the technical solution in the above method. Its specific implementation process and technical principles are the same and will not be repeated here.

[0151] Figure 6 A schematic diagram of another fault handling device based on an image forming device provided in an embodiment of the present application Figure 2 ,exist Figure 5 Based on the embodiment shown, Figure 6 As shown, the image forming device is provided with a ceramic sheet for fixing heating, and a plurality of thermistors are provided on the ceramic sheet.

[0152] 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 the end and the center of the other side of the ceramic sheet.

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

[0154] The identification unit 331 is used to identify each thermistor according to the voltage value of the thermistor 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 device is provided with multiple thermistors at different positions.

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

[0156] 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.

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

[0158] A product of a first temperature correction coefficient and a voltage value of a third thermistor in a fault identification mode is determined.

[0159] 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.

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

[0161] 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 a fault identification mode;

[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 are all normal.

[0163] In a possible implementation, the device is further specifically used for:

[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, then comparing 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, 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 used for:

[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 comparing 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 and the voltage value of the second thermistor are equal and the second product and the voltage value of the second thermistor are not equal, it is determined that the state information of the first thermistor is faulty, the state information of the second thermistor is normal, and the state information of the third thermistor is normal.

[0169] In a possible implementation, the device is further specifically used for:

[0170] If it is determined that the first product and the voltage value of the second thermistor are not equal, and / or the second product and the voltage value of the second thermistor are equal, then comparing 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 and the voltage value of the second thermistor are 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 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 used for:

[0173] If it is determined that the second product and the voltage value of the second thermistor are not equal, and / or the first product and the voltage value of the second thermistor are equal, 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] The execution module 41 is used to perform identification processing on each thermistor according to a preset fault identification mode and voltage value, obtain 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, the fault solution for the print job is determined to be to stop the current print job; and according to the fault solution, the current print job is stopped and fault prompt information is generated.

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

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

[0180] Updating the voltage value of the faulty thermistor to 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;

[0181] According to the fault plan, the current printing job is executed; and after determining that the printing job is completed, a fault prompt message is generated.

[0182] The fault handling device based on the image forming device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be described in detail here.

[0183] Figure 7 Schematic diagram of the structure of the image forming device provided in this application. Figure 7 As shown, the image forming apparatus 50 provided in this embodiment includes: at least one processor 501 and a memory 502. Optionally, the apparatus 50 further includes a communication component 503. The processor 501, the memory 502 and the communication component 503 are connected via a bus 504.

[0184] In a specific implementation process, at least one processor 501 executes the computer-executable 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 be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

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

[0187] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0188] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or 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 ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

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

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

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

[0192] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium 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 circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0193] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

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

[0195] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into 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, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0197] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned 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, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0198] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. 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 knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only 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 thermistor according to the preset fault identification mode and the voltage value to obtain status information of each thermistor 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, then 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 not equal to the second product, and / or the second product is equal to the voltage value of the second thermistor, then comparing 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, 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 first product and the voltage value of the second thermistor are not equal, and / or the second product and the voltage value of the second thermistor are equal, then comparing 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, 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 / or the first product and the voltage value of the second thermistor are 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.

Images