Printer heating control method, device, printer and printing method

Abstract

The present invention provides a printer heating control method, device, printer and printing method, including: obtaining the actual working voltage and target heating temperature of the printer; determining the heating control strategy according to a pre-trained heating control model based on the actual working voltage and the target heating temperature; wherein the heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages; heating is performed according to the heating control strategy to just reach the target heating temperature at the fixing position. The present invention heats the printer according to the heating control strategy determined by the pre-trained heating control model, so that the printer can reach the target heating temperature at the fixing position when it is at different working voltages, obtain the best fixing effect, save energy consumption, and increase the application range of the printer, and has strong practicality.

Description

Technical Field

[0001] The present invention belongs to the technical field of printers, and in particular relates to a printer heating control method, device, printer and printing method. Background Art

[0002] The fixing system of a laser printer consumes the most energy and is greatly affected by the working voltage environment, especially in areas with unstable power supply.

[0003] If the voltage is high, the target temperature will be reached earlier during heating, which will waste energy on the one hand and may cause instantaneous temperature overshoot on the other hand, resulting in damage to the heating roller or ghosting of the image; if the voltage is low, the target temperature will be reached later during heating, which may affect the fixing effect.

[0004] There are at least the following problems in the prior art:

[0005] Traditional printers lack a printing method that can automatically adapt to different operating voltages and adjust heating strategies. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides a printer heating control method, device, printer and printing method.

[0007] One aspect of the present invention provides a printer heating control method. The method comprises:

[0008] Get the actual working voltage and target heating temperature of the printer;

[0009] Based on the actual working voltage and the target heating temperature, a heating control strategy is determined according to a pre-trained heating control model; wherein the heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages;

[0010] Heating is performed according to the heating control strategy to just reach the target heating temperature at the fixing position.

[0011] Optionally, the specific training process of the heating control model is as follows:

[0012] Acquire a training data set of the printer, wherein the training data set includes an operating voltage, a printing parameter, and a temperature rise value;

[0013] The working voltage and the printing parameters are used as inputs, and the temperature rise value is used as output to train a heating control model to obtain a trained heating control model.

[0014] Optionally, the printing parameters include a heating control signal PWM duty cycle;

[0015] The determining of the heating control strategy based on the actual operating voltage and the target heating temperature according to a pre-trained heating control model includes:

[0016] Obtaining the travel time from the current position of the printer to the fixing position;

[0017] Determining a candidate heating control signal PWM duty cycle and a candidate temperature rise value according to the actual operating voltage and the heating control model;

[0018] Determining a target heating control signal PWM duty cycle and a target temperature rise value from the candidate heating control signal PWM duty cycles and candidate temperature rise values ​​according to the walking time and the target heating temperature;

[0019] A heating control strategy is determined according to the target heating control signal PWM duty cycle and the target temperature rise value, wherein the heating control strategy includes a heating time and a corresponding target heating control signal PWM duty cycle.

[0020] Optionally, the target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle that is smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value that is smaller than the first target temperature rise value;

[0021] The step of determining a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value further includes:

[0022] In a preset time period before the walking time, heating is performed using the first target heating control signal PWM duty cycle; and

[0023] In a subsequent period of the walking time, heating is performed using the second target heating control signal PWM duty cycle.

[0024] Another aspect of the present invention provides a printer heating control device. The device comprises:

[0025] An acquisition unit, used to acquire the actual current working voltage and target heating temperature of the printer;

[0026] A control unit, configured to determine a heating control strategy based on the actual operating voltage and the target heating temperature according to a pre-trained heating control model; wherein the heating control model is configured to characterize a corresponding relationship between each printing parameter and a temperature rise value under different operating voltages;

[0027] The heating unit is used to perform heating according to the heating control strategy so as to just reach the target heating temperature at the fixing position.

[0028] Optionally, the control unit is further configured to:

[0029] Acquire a training data set of the printer, wherein the training data set includes an operating voltage, a printing parameter, and a temperature rise value;

[0030] The working voltage and the printing parameters are used as inputs, and the temperature rise value is used as output to train a heating control model to obtain a trained heating control model.

[0031] Optionally, the control unit is further configured to:

[0032] Obtaining the travel time from the current position of the printer to the fixing position;

[0033] Determining a candidate heating control signal PWM duty cycle and a candidate temperature rise value according to the actual operating voltage and the heating control model;

[0034] Determining a target heating control signal PWM duty cycle and a target temperature rise value from the candidate heating control signal PWM duty cycles and candidate temperature rise values ​​according to the walking time and the target heating temperature;

[0035] A heating control strategy is determined according to the target heating control signal PWM duty cycle and the target temperature rise value, wherein the heating control strategy includes a heating time and a corresponding target heating control signal PWM duty cycle.

[0036] Optionally, the target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle that is smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value that is smaller than the first target temperature rise value; the control unit is further configured to:

[0037] In a preset time period before the walking time, heating is performed using the first target heating control signal PWM duty cycle; and

[0038] In a subsequent period of the walking time, heating is performed using the second target heating control signal PWM duty cycle.

[0039] Another aspect of the present invention provides a printer, comprising the device as described above.

[0040] Another aspect of the present invention provides a printing method, which is applied to a printer, comprising: adopting the printer heating control method as described above.

[0041] A printer heating control method of the present embodiment determines the heating control strategy through a pre-trained heating control model, so that the printer can be heated to the target heating temperature at the fixing position under different actual working voltage environments, thereby reducing energy consumption; the heating control method of the present embodiment is simple, does not require manual operation, has a high degree of intelligence, improves the application range of the printer, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a flow chart of the printer heating control method of the present invention;

[0043] Figure 2 It is a schematic diagram of the training process of the heating control model in the printer heating control method of the present invention;

[0044] Figure 3 It is a schematic flow chart of the heating control strategy of the present invention;

[0045] Figure 4 It is a structural schematic diagram of a printer heating control device of the present invention.

[0046] In the figure,

[0047] 1. Acquisition unit; 2. Control unit; 3. Heating unit. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] The following first describes the background of this application.

[0050] The working voltage of the printer may be different in different regions or environments. For example, the working voltage of the printer in region A is 220V, while the working voltage of the printer in region B may fluctuate greatly between 180V and 260V. In addition, the working voltage of the printer may also be slightly lower or higher than the stable working voltage due to the unstable power supply in the current use environment.

[0051] The inventor of the present application has found that if the conventional heating strategy is used for heating under different working voltages, the following problems may occur: if the actual working voltage of the printer is relatively high, the printer will reach the target temperature in advance, which will waste energy and may cause instantaneous temperature overshoot, resulting in damage to the heating roller or ghosting of the image. On the contrary, if the actual working voltage of the printer is relatively low, the timing of reaching the target temperature during heating will be relatively late, which may affect the fixing effect.

[0052] Based on this, the inventor of the present application has designed a method for controlling the heating of the printer in combination with the current actual working voltage, as described in detail below.

[0053] like Figure 1 As shown, a printer heating control method, the method comprising:

[0054] S110, obtaining the actual current operating voltage and target heating temperature of the printer.

[0055] Specifically, in this step, since the printer fuser is the component with the largest energy consumption and is greatly affected by the working voltage environment, it is necessary to obtain the current actual working voltage and target heating temperature of the printer before printing. The target heating temperature is set according to different paper types and sizes. There is no unique way to obtain the current actual working voltage of the printer, which is not limited here.

[0056] S120. Based on the actual working voltage and the target heating temperature, determine a heating control strategy according to a pre-trained heating control model; wherein the heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages.

[0057] Specifically, in this step, the heating control model is a pre-trained heating control model, which is generated by learning a large amount of data. The heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages.

[0058] It can be understood that the more data the heating control model learns, the more optimized the model obtained is, and the more accurate the determined heating control strategy is.

[0059] S130 , performing heating according to the heating control strategy to just reach the target heating temperature at the fixing position.

[0060] Specifically, in this step, the heating control strategy can be used to control the target heating temperature to be reached just at the fixing position, thereby avoiding heating to the target heating temperature in advance or in delay.

[0061] The printer heating control method of this embodiment determines the heating control strategy by adopting a pre-trained heating control model, thereby achieving heating to the target heating temperature at the fixing position, ensuring a good fixing effect, and reducing energy consumption.

[0062] For example, Figure 2 As shown, the specific training process of the heating control model is as follows:

[0063] S121. Acquire a training data set of the printer, where the training data set includes an operating voltage, printing parameters, and a temperature rise value.

[0064] Specifically, in this step, the printing parameters may include some parameters other than the operating voltage that can affect the temperature rise value, such as the heating control signal PWM duty cycle, the printer working state (such as idling, printing, etc.), the paper type (such as film paper, coated paper, newsprint, thick paper and thin paper, etc.), and the paper size (such as paper size: A4, A5, A6, etc.). It is not difficult to understand that under each operating voltage, there will be corresponding temperature rise values ​​corresponding to several different heating control signal PWM duty cycles, different paper types, and different paper sizes. The following description takes the printing parameter as the heating control signal PWM duty cycle as an example, but the present application is not limited to this.

[0065] As shown in Table 1 below, it is the temperature rise value corresponding to different heating control signal PWM duty cycles under the working voltage of 220V. It is not difficult to understand that under different working voltages, the temperature rise value corresponding to the same heating control signal PWM duty cycle is different. For example, under the working voltage of 180V, when the heating control signal PWM duty cycle is 10%, the corresponding temperature rise value is 0.6℃ / s. In order to improve the accuracy of training the heating control model using the training data set, the temperature rise values ​​corresponding to different heating control signal PWM duty cycles under a large number of different working voltages can be used as the data of the training data set to train the heating control model.

[0066] Table 1

[0067]

[0068]

[0069] S122, taking the working voltage and the printing parameters as input and the temperature rise value as output, training a heating control model to obtain a trained heating control model.

[0070] Specifically, in this step, when training the heating control model, each working voltage and each heating control signal PWM duty cycle are respectively used as input, and the corresponding temperature rise value is used as output, so that a trained heating control model can be obtained. As an example, the working voltage 220V and the heating power 10% in Table 1 above are used as input, and 1℃ / s is used as output to train the heating control model.

[0071] As an example, the printer will continuously train the heating control model according to the printing parameters and corresponding temperature rise values ​​recorded by the printer to obtain the optimal heating control model. Considering the impact of data on training time and storage, the heating control model can be optimized and updated within a preset time threshold or a preset number of prints.

[0072] For example, Figure 3 As shown, the printing parameters include a heating control signal PWM duty cycle.

[0073] Specifically, different temperature rise values ​​can be obtained by adjusting the heating control signal PWM duty cycle. For example, PWM is used to control a certain voltage heating power duty cycle, thereby obtaining temperature rise values ​​corresponding to several different heating control signal PWM duty cycles. In this embodiment, the heating control signal PWM duty cycle is taken as the printing parameter as an example to illustrate how to obtain the heating control strategy.

[0074] As an example, the printer is in a certain voltage environment. When the printer is turned on and preheating begins, the correspondence between one or each heating control signal PWM duty cycle and the temperature rise value is recorded. At this time, the printer is idling and there are fewer factors affecting the temperature rise value. The correspondence between each heating control signal PWM duty cycle and the temperature rise value is used to determine the voltage environment in which the printer is located. Specifically, the recorded correspondence between the heating control signal PWM duty cycle and the temperature rise value is compared with the correspondence between the heating control signal PWM duty cycle and the temperature rise value under different voltages pre-stored in the printer, so as to determine the current actual operating voltage of the printer, or the voltage gear. Then, the heating control model determines the heating control strategy based on the actual operating voltage and the target heating power, and the temperature rise value relationship corresponding to each printing parameter. For example, the operating voltage pre-stored in the printer is 220V. When the printer is preheated, the temperature rise value corresponding to the 10% duty cycle of the heating control signal PWM is 1°C / s; the operating voltage is 180V. When the printer is preheated, the temperature rise value corresponding to the 10% duty cycle of the heating control signal PWM is 0.6°C / s; then, under the current operating voltage of the printer, when preheating, the recorded temperature rise value corresponding to the 10% duty cycle of the heating control signal PWM is 0.8°C / s. Therefore, it can be obtained that the operating voltage of the printer is between 220V and 180V. If the temperature rise value is exactly 0.6°C / s, it can be determined that the operating voltage of the printer is 180V.

[0075] Exemplarily, the determining the heating control strategy based on the actual operating voltage and the target heating temperature according to a pre-trained heating control model includes:

[0076] S122a, obtaining the travel time from the current position of the printer to the fixing position.

[0077] Specifically, as an example, when the printer receives a print task, it calculates the time required for the paper to reach the fixing time according to the length and line speed of the paper path.

[0078] As an example, when printing, the actual working voltage of the printer obtained by the above preheating is 180V. Then, based on the actual working voltage and the target heating temperature, the heating control strategy can be determined according to the pre-trained heating control model to complete the printing. The heating control model stores the corresponding relationship between the temperature rise values ​​of various printing parameters (paper size, paper type, etc.) of the printer. At the same time, the printer records the temperature rise values ​​corresponding to each printing parameter during the printing process, stores them in the heating control model, and updates the heating control model in real time.

[0079] The next time you print, use the same method as above. After determining the voltage environment of the printer in the preheating stage, determine the heating strategy according to the updated heating control model, complete the printing, and so on. In this way, the printer can always pay attention to the voltage environment after it is turned on, and adjust the printing strategy in real time according to the voltage change, so as to achieve a good fixing effect and reduce the impact of voltage on printing. The printer will record each printing parameter and its corresponding temperature rise value during each preheating and printing. During preheating, the corresponding relationship between the recorded heating control signal PWM duty cycle and the temperature rise value is mainly used to determine the voltage environment of the printer; the recorded printing parameters and their corresponding temperature rise value data during printing are used to update the heating control model, and the data recorded by the printer can be deleted regularly or not saved, thus saving storage space. If continuous printing is encountered, the recorded printing parameters and their corresponding temperature rise value data are the same as the data during the last printing, so they can be used to update the heating control model to improve the printing effect. The specific situation can be adjusted specifically, which will not be repeated here.

[0080] S122b, determining a candidate heating control signal PWM duty cycle and a candidate temperature rise value according to the actual operating voltage and the heating control model.

[0081] Specifically, in this step, after obtaining the current actual working voltage of the printer according to the heating control model, different heating control signal PWM duty cycles and corresponding temperature rise values ​​corresponding to the actual working voltage can be obtained as candidate heating control signal PWM duty cycles and candidate temperature rise values.

[0082] S122c, determining a target heating control signal PWM duty cycle and a target temperature rise value from the candidate heating control signal PWM duty cycles and candidate temperature rise values ​​according to the walking time and the target heating temperature.

[0083] It is not difficult to understand that there may be multiple candidate heating control signal PWM duty cycles and candidate temperature rise values. Furthermore, based on the walking time when the paper reaches the fixing moment and the difference between the target heating temperature and the initial temperature, the heating control model calculates and determines an optimal target heating control signal PWM duty cycle and target temperature rise value. The determined target heating control signal PWM duty cycle and target temperature rise value may be the heating control signal PWM duty cycle and temperature rise value with the shortest heating time or the optimal heating process, without the phenomenon of instantaneous temperature overshoot, etc. It is calculated by the trained heating control model, and the specific calculation method is not repeated here.

[0084] S122d. Determine a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value, wherein the heating control strategy includes a heating time and a corresponding target heating control signal PWM duty cycle.

[0085] Specifically, in this step, based on the target heating control signal PWM duty cycle and the target temperature rise value, the optimal heating control strategy is further determined, that is, the optimal heating time and the corresponding target heating control signal PWM duty cycle are determined to ensure that the heating process is not too long or too short, thereby saving energy and achieving a good fixing effect.

[0086] It should be noted that when all factors affecting the temperature rise value are input into the heating control model, the closer the output temperature rise value is to the actual temperature rise value, the more accurate the obtained heating control strategy will be, and the amount of calculation will also be greater. Therefore, the present application uses the voltage and the PWM duty cycle of the heating control signal, which are factors that affect the temperature rise value, as input, and the corresponding temperature rise value as output to train the heating control model. In actual use, a good heating effect is still obtained. Compared with the prior art of early heating, or only adjusting the heating time, the heating control strategy obtained by the heating control model in the present application can achieve good fixing effect and is more energy-efficient.

[0087] Exemplarily, the target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value smaller than the first target temperature rise value.

[0088] The step of determining a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value further includes:

[0089] In a preset time period before the walking time, heating is performed using the first target heating control signal PWM duty cycle; and

[0090] In a subsequent period of the walking time, heating is performed using the second target heating control signal PWM duty cycle.

[0091] Specifically, in this step, different heating control signal PWM duty cycles are used to heat different time periods. In the previous preset time period, a larger heating control signal PWM duty cycle is used for heating, which can save heating time and reduce heat loss. In the subsequent time period, that is, when close to the target heating temperature, a smaller heating control signal PWM duty cycle is used for heating, which can ensure that the fixing position is heated to the target heating temperature and obtain a better fixing effect.

[0092] Illustratively, another aspect of the present invention provides a printer heating control device, which can be applied to the control method described above. For details, please refer to the relevant records above and will not be repeated here.

[0093] Specifically, Figure 4 As shown, the device includes: an acquisition unit 1, a control unit 2 and a heating unit 3. The acquisition unit 1 is used to acquire the actual working voltage and target heating temperature of the printer. The control unit 2 is used to determine the heating control strategy based on the actual working voltage and the target heating temperature according to a pre-trained heating control model; wherein the heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages. The heating unit 3 is used to heat according to the heating control strategy to just reach the target heating temperature at the fixing position.

[0094] In this embodiment, the acquisition unit and the heating unit are respectively connected to the control unit, the control unit can be a single chip microcomputer, etc., the control unit outputs a heating control signal, and the heating control signal can be regulated by the heating control signal PWM duty cycle to control the heating unit to heat according to the heating control strategy. The control device is simple, easy to assemble, and has a good heating effect. The heating unit can be an existing printer heating mechanism.

[0095] Exemplarily, the control unit 1 is further specifically used to: obtain a training data set of the printer, the training data set including an operating voltage, printing parameters and a temperature rise value; use the operating voltage and the printing parameters as input and the temperature rise value as output to train a heating control model to obtain a trained heating control model.

[0096] Specifically, the heating control model of the present invention can autonomously learn and optimize the heating control model according to changes in the environment to determine a more accurate heating control strategy.

[0097] Exemplarily, the control unit 1 is further specifically used to: obtain the travel time from the current position of the printer to the fixing position. Determine the candidate heating control signal PWM duty cycle and the candidate temperature rise value according to the actual working voltage and the heating control model. Determine the target heating control signal PWM duty cycle and the target temperature rise value from the candidate heating control signal PWM duty cycle and the candidate temperature rise value according to the travel time and the target heating temperature. Determine the heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value, and the heating control strategy includes the heating time and the corresponding target heating control signal PWM duty cycle.

[0098] More specifically, the target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle that is smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value that is smaller than the first target temperature rise value; the control unit is further specifically used to: in a preset time period before the walking time, use the first target heating control signal PWM duty cycle for heating; and, in a time period after the walking time, use the second target heating control signal PWM duty cycle for heating.

[0099] In this embodiment, the control unit can be set on the printer main control board. Through the heating control model in the control unit and based on the current actual operating voltage and target heating temperature of the printer obtained by the acquisition unit, the optimal heating control strategy is calculated to achieve the advantages of saving energy and maintaining a good fixing effect.

[0100] Another aspect of the present invention provides a printer, comprising the control device as described above.

[0101] Specifically, the printer using the control device can be applicable to various voltage environments, reduce energy consumption and ensure printing effect, thereby increasing the application range of the printer.

[0102] Another aspect of the present invention provides a method, which is applied to a printer and adopts the printer heating control method as described above.

[0103] Specifically, the present invention is aimed at areas with voltage fluctuations, has universal applicability, has the advantages of saving energy consumption and ensuring a good fixing effect, thereby increasing the application range of the printer and enhancing its practicability.

[0104] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A printer heating control method, characterized in that: The method comprises: Get the actual working voltage and target heating temperature of the printer; Based on the actual working voltage and the target heating temperature, a heating control strategy is determined according to a pre-trained heating control model; wherein the heating control model is used to characterize the corresponding relationship between each printing parameter and the temperature rise value under different working voltages; Heating is performed according to the heating control strategy so as to just reach the target heating temperature at the fixing position; The printing parameters include a heating control signal PWM duty cycle; The determining of the heating control strategy based on the actual operating voltage and the target heating temperature according to a pre-trained heating control model includes: Obtaining the travel time from the current position of the printer to the fixing position; Determining a candidate heating control signal PWM duty cycle and a candidate temperature rise value according to the actual operating voltage and the heating control model; Determining a target heating control signal PWM duty cycle and a target temperature rise value from the candidate heating control signal PWM duty cycles and candidate temperature rise values ​​according to the walking time and the target heating temperature; Determine a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value, wherein the heating control strategy includes a heating time and a corresponding target heating control signal PWM duty cycle; The specific training process of the heating control model is as follows: Acquire a training data set of the printer, wherein the training data set includes an operating voltage, a printing parameter, and a temperature rise value; Taking the working voltage and the printing parameters as input and the temperature rise value as output, training a heating control model to obtain a trained heating control model; The printer is in a certain voltage environment. When the printer is started and preheating begins, the corresponding relationship between one or each heating control signal PWM duty cycle and the temperature rise value is recorded. At this time, the printer is idling. The corresponding relationship between the PWM duty cycle of each heating control signal and the temperature rise value is used to determine the current actual working voltage of the printer.

2. The method according to claim 1, characterized in that The target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value smaller than the first target temperature rise value; The step of determining a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value further includes: In a preset time period before the walking time, heating is performed using the first target heating control signal PWM duty cycle; as well as, In a subsequent period of the walking time, heating is performed using the second target heating control signal PWM duty cycle.

3. A printer heating control device, characterized in that: The device comprises: An acquisition unit, used to acquire the actual current working voltage and target heating temperature of the printer; A control unit, configured to determine a heating control strategy based on the actual operating voltage and the target heating temperature according to a pre-trained heating control model; wherein the heating control model is configured to characterize a corresponding relationship between each printing parameter and a temperature rise value under different operating voltages; A heating unit, used for heating according to the heating control strategy to just reach the target heating temperature at the fixing position; The control unit is further specifically used for: Obtaining the travel time from the current position of the printer to the fixing position; Determining a candidate heating control signal PWM duty cycle and a candidate temperature rise value according to the actual operating voltage and the heating control model; Determining a target heating control signal PWM duty cycle and a target temperature rise value from the candidate heating control signal PWM duty cycles and candidate temperature rise values ​​according to the walking time and the target heating temperature; Determine a heating control strategy according to the target heating control signal PWM duty cycle and the target temperature rise value, wherein the heating control strategy includes a heating time and a corresponding target heating control signal PWM duty cycle; The control unit is further specifically used for: Acquire a training data set of the printer, wherein the training data set includes an operating voltage, a printing parameter, and a temperature rise value; The working voltage and the printing parameters are used as inputs, and the temperature rise value is used as output to train a heating control model to obtain a trained heating control model.

4. The device according to claim 3, characterized in that The target heating control signal PWM duty cycle includes a first target heating control signal PWM duty cycle and a second target heating control signal PWM duty cycle that is smaller than the first target heating control signal PWM duty cycle, and the target temperature rise value includes a first target temperature rise value and a second target temperature rise value that is smaller than the first target temperature rise value; the control unit is further configured to: In a preset time period before the walking time, heating is performed using the first target heating control signal PWM duty cycle; and In a subsequent period of the walking time, heating is performed using the second target heating control signal PWM duty cycle.

5. A printer, characterized in that: The invention comprises the device according to any one of claims 3 to 4.

6. A printing method, applied to a printer, characterized in that: include: A printer heating control method as described in any one of claims 1 to 2 is adopted.

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