A multi-width paper fixing method, fixing assembly and printing system

Abstract

The present application relates to the technical field of printing, in particular to a multi-width paper fixing method, a fixing assembly and a printing system. The multi-width paper fixing method comprises: obtaining state data based on a printing instruction trigger; wherein the state data comprises a maximum size of a paper to be printed along an axial direction of a heat-conducting roller. Based on the maximum size of the paper to be printed along the axial direction of the heat-conducting roller being less than a first set range, a control unit selects a first heating unit to heat the heat-conducting roller; wherein the first heating unit and a second heating unit are arranged in a hollow chamber of the heat-conducting roller. Based on the temperature of the heat-conducting roller being in a first temperature range, the control unit controls the heat-conducting roller to drive the paper to be fixed to pass through an abutment between the heat-conducting roller and a pressing unit, thereby completing the fixing. In this way, the problem that the fixing assembly cannot adapt to different sizes of paper for fixing is solved.

Description

Technical Field

[0001] This invention relates to the field of printing technology, and more specifically, to a method for fixing multi-width paper, a fixing component, and a printing system. Background Technology

[0002] In image forming devices such as laser printers and copiers, the fixing assembly is the core component for permanently fixing images. It typically consists of a heating roller, a pressure roller, a heating unit, and a control unit. After the printer is turned on, the heating unit preheats the heating roller to the set temperature. When paper with loose toner transfer passes through the compression area between the heating roller and the pressure roller, the high temperature melts the toner particles. At the same time, the uniform pressure applied by the pressure roller forces the molten toner into the paper fibers. After the paper cools, the toner solidifies to form a strong and abrasion-resistant printed image, completing the fixing process.

[0003] Existing temperature control strategies for fuser assemblies are mostly based on standard-sized paper designs. When printing on small-sized paper smaller than the fuser roller, the paper only covers the middle area of ​​the fuser roller. The parts of the fuser roller not covered by paper cannot absorb heat through the paper, while the heating unit remains in a state of overall heating. This causes heat to accumulate continuously at both ends, leading to localized overheating. This overheating not only triggers the printer's overheat protection mechanism, causing printing interruptions, but also accelerates the aging and damage of the fuser roller coating, fuser film, and surrounding components, reducing the lifespan of the assembly. At the same time, the existing structure cannot dynamically adjust the heat generation of different areas of the fuser roller according to the paper size, making it difficult to adapt to the fusing requirements of different paper sizes. This results in poor compatibility in multi-size paper printing scenarios, affecting printing stability and reliability. Summary of the Invention

[0004] To address the problem that the fixing assembly cannot adapt to different paper sizes for fixing, this invention provides a multi-width paper fixing method, a fixing assembly, and a printing system.

[0005] In a first aspect, the multi-width paper fixing method provided by the present invention includes:

[0006] Based on the printing command trigger, status data is acquired; wherein, the status data includes the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller;

[0007] Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is less than a first set range, the control unit selects a first heating unit to heat the heat-conducting roller; wherein, the first heating unit and the second heating unit are disposed in the hollow cavity of the heat-conducting roller; d3 > d1; d1 is the area where the heat-conducting roller is heated to the first temperature range when the first heating unit heats up; d3 is the area where the heat-conducting roller is heated to the first temperature range when the first heating unit and the second heating unit heat up simultaneously.

[0008] Based on the temperature of the heat-conducting roller within a first temperature range, the control unit controls the heat-conducting roller to drive the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thereby completing the fixing process.

[0009] Optionally, the multi-width paper fixing method further includes:

[0010] Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is within the first set range, the control unit selects a second heating unit to heat the heat-conducting roller; wherein, d2 > d1, d2 is the area where the second heating unit heats the heat-conducting roller to the first temperature range when it heats up, and d2 and d1 at least partially overlap.

[0011] Optionally, based on the temperature of the heat-conducting roller within a first temperature range, the control unit controls the heat-conducting roller to drive the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thereby completing the fixing process, including:

[0012] Based on the temperature at the contact point between the heat-conducting roller and the pressurizing unit within a first temperature range, temperature data at the contact point is continuously acquired. Simultaneously, the paper is located at the contact point between the heat-conducting roller and the pressurizing unit, and the paper moves synchronously with the rotation of the heat-conducting roller.

[0013] Based on the temperature at the contact point being within a second temperature range, the control unit controls the first heating unit and the second heating unit to simultaneously heat the heat-conducting roller; wherein, the maximum value of the second temperature range is less than the minimum value of the first temperature range;

[0014] Since the temperature of the heat-conducting roller is greater than the first temperature range, the control unit controls the first heating unit to reduce the heat generation;

[0015] The heat-conducting roller drives the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thus completing the fixing process.

[0016] Optionally, the multi-width paper fixing method further includes:

[0017] Since the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is greater than the first set range, the control unit selects the first heating unit and the second heating unit to heat the heat-conducting roller simultaneously.

[0018] Optionally, the step of obtaining status data based on a print command trigger includes:

[0019] Triggered by a printing command, the control unit controls the first heating unit and the second heating unit to heat the heat-conducting roller, while simultaneously acquiring status data.

[0020] Based on the fact that the temperature of the heat-conducting roller is within the third temperature range, the control unit controls the first heating unit and the second heating unit to shut down.

[0021] In a second aspect, the fixing assembly provided by the present invention is applied to any of the multi-width paper fixing methods in the first aspect, wherein the fixing assembly includes a first heating unit, a second heating unit, a heat conduction unit, and a pressure unit;

[0022] The heat-conducting unit includes a heat-conducting roller and a driving unit; the heat-conducting roller is drivenly connected to the driving unit; the first heating unit and the second heating unit are disposed in the hollow cavity of the heat-conducting roller; wherein, d3 > d1; d1 is the region where the heat-conducting roller is heated to a first temperature range when the first heating unit heats up; d3 is the region where the heat-conducting roller is heated to the first temperature range when the first heating unit and the second heating unit heat up simultaneously;

[0023] The pressurizing unit is parallel to the central axis of the heat-conducting roller; the pressurizing unit abuts against the heat-conducting roller, and the pressurizing unit is drivenly connected to the heat-conducting roller;

[0024] The fixing assembly includes a fixing state; the fixing state includes: the control unit controls the first heating unit and the second heating unit to heat the heat-conducting roller, the driving unit drives the heat-conducting roller to rotate, and the heat-conducting roller drives the heating unit to rotate.

[0025] Optionally, the first heating unit includes a first heating element; the second heating unit includes a second external heating element and a second internal heating element.

[0026] The first heating element, the second external heating element, and the second internal heating element are respectively disposed in the hollow cavity of the heat-conducting roller; the two second external heating elements are respectively connected to the two axially opposite ends of the second internal heating element;

[0027] The dimensions of the two second external heating elements and the second internal heating element along the axial direction of the heat-conducting roller are greater than the dimensions of the first heating element along the axial direction of the heat-conducting roller;

[0028] The fixing state includes: the first heating element, the second external heating element, and the second internal heating element heating the heat-conducting roller.

[0029] Optionally, the first heating element is located between the second inner heating element and the pressurization unit;

[0030] The projection of the first heating element along the axis of the heat-conducting roller is at least partially coincident with the two second outer heating elements.

[0031] Optionally, the fixing state includes: the heating power of the second external heating element is greater than the heating power of the second internal heating element.

[0032] Thirdly, the printing system provided by the present invention includes any of the fixing components in the second aspect, and the printing system further includes a paper feeding component, a toner cartridge component, a transfer component, a photosensitive component, and a housing component; the paper feeding component, the transfer component, and the fixing component are sequentially arranged inside the housing component along the paper feeding direction; the photosensitive component abuts against the transfer component; and the toner cartridge component is arranged around the photosensitive component.

[0033] To address the problem that the fixing assembly cannot adapt to different paper sizes for fixing, this invention has the following advantages:

[0034] By acquiring state data including the maximum axial dimension of the paper to be printed along the heat-conducting roller based on the printing command trigger, and selecting a first heating unit to heat the heat-conducting roller based on the maximum axial dimension of the paper along the heat-conducting roller being less than a first set range, and driving the paper through the contact point between the heat-conducting roller and the pressure unit based on the temperature of the heat-conducting roller being within a first temperature range to complete the fixing process, it is possible to match the corresponding heating unit according to the maximum axial dimension of the paper to be printed, so that the heating area of ​​the heat-conducting roller is adapted to the paper size, avoiding the heating of the areas at both ends of the heat-conducting roller that are not covered by paper, thereby avoiding the continuous accumulation of heat in these areas. Ultimately, this solves the problem that existing fixing methods are prone to local overheating when printing small-sized paper, which triggers overheat protection, causing printing interruption, and accelerating the aging and damage of the fixing roller coating and surrounding components. At the same time, it improves the compatibility, printing stability, and reliability in multi-size paper printing scenarios. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a multi-width paper fixing method according to one embodiment;

[0036] Figure 2 This is a schematic diagram of the structure of a printing system according to one embodiment;

[0037] Figure 3 for Figure 2 A schematic diagram of the structure of the fixing assembly;

[0038] Figure 4 for Figure 3 A cross-sectional view of the fixing component;

[0039] Figure 5 for Figure 3 Cross-sectional view of the heat conduction unit and the pressurization unit.

[0040] Figure label:

[0041] 10. Fixing assembly; 11. First heating unit; 111. First heating element; 12. Second heating unit; 121. Second external heating element; 122. Second internal heating element; 14. Heat conducting unit; 141. Heat conducting roller; 142. Drive unit; 15. Pressurizing unit; 151. Pressurizing roller; 152. Rotating shaft; 20. Transfer assembly; 30. Toner hopper assembly; 40. Paper feeding assembly; 50. Outer shell assembly. Detailed Implementation

[0042] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0043] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] In the fusing process of a printer, the existing temperature control method of the fusing assembly 10 is generally based on the design of standard-sized paper. When printing paper with a smaller maximum size along the axial direction of the heat-conducting roller 141, the paper can only cover the middle area of ​​the heat-conducting roller 141. The parts of the heat-conducting roller 141 that are not covered by paper cannot absorb heat through the paper, while the heating unit still maintains an overall heating state, causing heat to accumulate continuously at both ends and causing local overheating. This local overheating phenomenon not only triggers the printer's overheat protection mechanism, causing the printing process to be interrupted, but also accelerates the aging and damage of the coating of the heat-conducting roller 141, the fusing film and surrounding components, reducing the service life of the fusing assembly 10. At the same time, the existing structure cannot dynamically adjust the heat generation of different areas of the heat-conducting roller 141 according to the maximum size of the paper to be printed along the axial direction of the heat-conducting roller 141, making it difficult to adapt to the fusing needs of multi-width paper. It has poor compatibility problems in multi-size paper printing scenarios, thus affecting the stability and reliability of printing.

[0045] Example 1:

[0046] This embodiment proposes a method for fixing multi-width paper, such as... Figure 1 As shown, the multi-width paper fixing method includes steps S10, S20, and S30; steps S10, S20, and S30 are executed sequentially.

[0047] Step S10: Based on the printing command trigger, acquire status data; wherein, the status data includes the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller 141.

[0048] Step S20: Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller 141 is less than a first set range, the control unit selects the first heating unit 11 to heat the heat-conducting roller 141. The first heating unit 11 and the second heating unit 12 are located within the hollow cavity of the heat-conducting roller 141. d3 > d1; d1 is the area where the heat-conducting roller 141 is heated to the first temperature range when the first heating unit 11 heats up. The heating range of the first heating unit 11 is relatively small, which can prevent the areas at both ends of the heat-conducting roller 141 not covered by paper from being heated when fixing paper with a narrow width, thus avoiding heat accumulation. d3 is the area where the heat-conducting roller 141 is heated to the first temperature range when the first heating unit 11 and the second heating unit 12 heat up simultaneously. The heating range of the first heating unit 11 and the second heating unit 12 is relatively large when heated simultaneously, which can match the fixing of wider paper, ensuring the fixing effect. In this way, different heating methods can be selected for paper of different widths, thus allowing fixing of paper of different widths and avoiding heat accumulation affecting printing.

[0049] Step S30: Based on the temperature of the heat-conducting roller 141 within a first temperature range, the control unit controls the heat-conducting roller 141 to drive the paper to be fixed at the contact point between the heat-conducting roller 141 and the pressure unit 15 through the contact point, thereby completing the fixing process.

[0050] Furthermore, the multi-width paper fixing method also includes step S40; steps S10, S40 and S30 are executed sequentially.

[0051] Step S40: Based on the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller 141 within a first set range, the control unit selects the second heating unit 12 to heat the heat-conducting roller 141; wherein, d2 > d1, d2 is the area where the heat-conducting roller 141 is heated to the first temperature range by the second heating unit 12, and d2 and d1 at least partially overlap. This allows fixing to be divided into three different levels: when the paper is narrow (width less than the first set range), the area requiring heating during fixing is small, and the first heating unit 11 can be used for fixing; when the paper is medium-width (width within the first set range), the second heating unit 12 can be used for fixing; when the paper is wide (width exceeding the first set range), the area requiring heating during fixing is large, and both the first heating unit 11 and the second heating unit 12 can be used for heating simultaneously. When d2 and d1 at least partially overlap, the overlapping area heats up quickly and can be heated to a higher temperature when the first heating unit 11 and the second heating unit 12 are heated simultaneously, and the heat is radiated to a larger area, thereby expanding the area where the heat-conducting roller 141 can be heated to the first temperature range.

[0052] Furthermore, step S30 includes steps S31, S32, S33, and S34. Steps S31, S32, S33, and S34 are executed sequentially.

[0053] Step S31: Based on the temperature at the contact point between the heat-conducting roller 141 and the pressure unit 15 within the first temperature range, the temperature data at the contact point is continuously acquired. This allows it to be determined whether the temperature after heating has reached the requirements for fixing. At the same time, the paper is at the contact point between the heat-conducting roller 141 and the pressure unit 15. The paper moves synchronously with the rotation of the heat-conducting roller 141 to gradually fix the toner on the paper.

[0054] Step S32: Based on the temperature at the contact point within a second temperature range, the control unit controls the first heating unit 11 and the second heating unit 12 to simultaneously heat the heat-conducting roller 141; wherein the maximum value of the second temperature range is less than the minimum value of the first temperature range. Thus, when the heated temperature is insufficient to meet the fixing requirements, the first heating unit 11 and the second heating unit 12 heat simultaneously to achieve rapid heat replenishment, thereby avoiding substandard fixing quality and preventing printing interruptions, thus not affecting printing efficiency.

[0055] Step S33: Based on the fact that the temperature of the heat-conducting roller 141 is greater than the first temperature range, the control unit controls the first heating unit 11 to reduce the heat generation; this can avoid the printing component from overheating due to excessive temperature, avoid damage to the heat-conducting roller 141 due to excessive temperature, and at the same time reduce the power consumption of the fixing component 10 and extend the service life of the fixing component 10.

[0056] Step S34: The heat-conducting roller 141 drives the paper to be fixed through the contact point between the heat-conducting roller 141 and the pressure unit 15, thus completing the fixing process.

[0057] Furthermore, the multi-width paper fixing method also includes step S50. Steps S10, S50, and S30 are executed sequentially.

[0058] Step S50: Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller 141 is greater than the first set range, the control unit selects the first heating unit 11 and the second heating unit 12 to heat the heat-conducting roller 141 simultaneously. In this way, when fixing oversized paper, the simultaneous heating of the first heating unit 11 and the second heating unit 12 can bring a larger heating area and heat demand, ensuring the fixing effect for oversized paper.

[0059] Furthermore, step S10 includes steps S11 and S12; steps S11 and S12 are executed sequentially.

[0060] Step S11: Based on the printing command trigger, the control unit controls the first heating unit 11 and the second heating unit 12 to heat the heat-conducting roller 141, and at the same time acquires status data; in this way, before the paper starts fixing, the first heating unit 11 and the second heating unit 12 work together to provide higher heating power, so that the heat-conducting roller 141 can be heated up quickly, realizing the preheating of the heat-conducting roller 141, which can reduce the fixing waiting time and improve the fixing efficiency.

[0061] Step S12: Based on the temperature of the heat-conducting roller 141 being within the third temperature range, the control unit controls the first heating unit 11 and the second heating unit 12 to shut down. In this way, even if the first heating unit 11 and the second heating unit 12 are shut down, continuous heating can be avoided to prevent the roller temperature from becoming too high, thus preventing heat accumulation from overloading the fixing assembly 10.

[0062] The third temperature range can be equal to the first temperature range, or the maximum value of the third temperature range can be less than the minimum value of the first temperature range. When the maximum value of the third temperature range is less than the minimum value of the first temperature range, this only achieves preheating of the heat-conducting roller 141, but does not directly allow the heat-conducting roller 141 to conduct heat to the fixing temperature. Instead, it allows the heat-conducting roller 141 to be heated from room temperature, which is ready for fixing. Subsequently, targeted heating can be selected according to the fixing requirements.

[0063] Example 2:

[0064] This embodiment also proposes a fixing component 10, which is applied to any of the multi-width paper fixing methods in this embodiment, such as... Figure 3 and Figure 4 As shown, the fixing assembly 10 includes a first heating unit 11, a second heating unit 12, a heat conduction unit 14, and a pressurization unit 15;

[0065] like Figure 5 As shown, the heat-conducting unit 14 includes a heat-conducting roller 141 and a driving unit 142; the heat-conducting roller 141 and the driving unit 142 are drivenly connected; a first heating unit 11 and a second heating unit 12 are disposed in the hollow cavity of the heat-conducting roller 141. Wherein, d3 > d1; d1 is the area where the heat-conducting roller 141 is heated to a first temperature range when the first heating unit 11 heats up; d3 is the area where the heat-conducting roller 141 is heated to the first temperature range when the first heating unit 11 and the second heating unit 12 heat up simultaneously. The heating range of the first heating unit 11 is relatively small, which can prevent the areas at both ends of the heat-conducting roller 141 not covered by paper from being heated when fixing paper with a narrow width, thus avoiding heat accumulation. When the first heating unit 11 and the second heating unit 12 heat up simultaneously, the heating range is larger, which can be matched to fixing paper with a wider width, ensuring the fixing effect. In this way, different heating methods can be selected for paper of different widths, thereby enabling fixing of paper of different widths and avoiding the situation where heat accumulation affects printing.

[0066] The pressurizing unit 15 is parallel to the central axis of the heat-conducting roller 141; the pressurizing unit 15 abuts against the heat-conducting roller 141, and the pressurizing unit 15 is driven to connect with the heat-conducting roller 141.

[0067] The fixing assembly 10 includes a fixing state; the fixing state includes: the control unit controls the first heating unit 11 and the second heating unit 12 to heat the heat-conducting roller 141, the driving unit 142 drives the heat-conducting roller 141 to rotate, and the heat-conducting roller 141 drives the heating unit to rotate.

[0068] In other embodiments, such as Figure 4 and Figure 5As shown, the pressurizing unit 15 includes a pressurizing roller 151 and a rotating shaft 152; the pressurizing roller 151 is sleeved on the outer side wall of the rotating shaft 152, and the outer peripheral wall of the pressurizing roller 151 abuts against the outer peripheral wall of the heat-conducting roller 141; the pressurizing roller 151 and the heat-conducting roller 141 are driven to rotate; when the driving unit 142 drives the heat-conducting roller 141 to rotate, the heat-conducting roller 141 drives the pressurizing roller 151 and the rotating shaft 152 to rotate together.

[0069] Furthermore, such as Figure 5 As shown, the first heating unit 11 includes a first heating element 111; the second heating unit 12 includes a second external heating element 121 and a second internal heating element 122.

[0070] The first heating element 111, the second external heating element 121, and the second internal heating element 122 are respectively disposed in the hollow cavity of the heat-conducting roller 141; the two second external heating elements 121 are respectively connected to the two axially opposite ends of the second internal heating element 122.

[0071] The dimensions of the two second external heating elements 121 and the second internal heating element 122 along the axial direction of the heat-conducting roller 141 are larger than the dimension of the first heating element 111 along the axial direction of the heat-conducting roller 141. The axial dimension of the first heating element 111 corresponds to the heating area of ​​small-sized paper. When working alone, it can only cover the narrow area in the middle of the heat-conducting roller 141, which can prevent the paperless areas at both ends of the heat-conducting roller 141 from being heated.

[0072] The axial dimension of the combination of the second external heating element 121 and the second internal heating element 122 of the second heating unit 12 corresponds to the heating area of ​​medium-sized paper. When working alone, it can cover a wider roller area and can adapt to the fixing requirements of medium-width paper.

[0073] The fixing state includes: the control unit controls the first heating element 111, the second external heating element 121, and the second internal heating element 122 to heat the heat-conducting roller 141.

[0074] Furthermore, such as Figure 5 As shown, the first heating element 111 is located between the second inner heating element 122 and the pressurization unit 15;

[0075] The projection of the first heating element 111 along the axis of the heat-conducting roller 141 at least partially coincides with the two second external heating elements 121. In this way, the second external heating elements 121 are closer to the inner wall of the heat-conducting roller 141, which can shorten the heat transfer path and allow the heat from the second external heating elements 121 to be transferred to the heat-conducting roller 141 more efficiently and quickly, thereby improving the fixing speed.

[0076] Furthermore, the fixing state includes: the heating power of the second external heating element 121 is greater than the heating power of the second internal heating element 122. The heating areas of the first heating element 111 and the second internal heating element 122 overlap. When the first heating unit 11 and the second heating unit 12 work simultaneously, the heat from the first heating element 111 and the second internal heating element 122 will be superimposed, so that the middle area of ​​the heat-conducting roller 141 maintains sufficient heat. The second external heating elements 121 at both ends, with their high power output, can smoothly connect with the area where the heat is superimposed in the middle, avoiding the situation where the temperature in the middle is high and the temperature at both ends is low, thereby ensuring the fixing effect.

[0077] Example 3:

[0078] This embodiment also proposes a printing system, such as Figure 2 As shown, the printing system includes any of the fixing components 10 in Embodiment 2. The printing system also includes a paper feeding component 40, a toner cartridge component 30, a transfer component 20, a photosensitive component 60, and a housing component 50. The paper feeding component 40, transfer component 20, and fixing component 10 are sequentially arranged within the housing component 50 along the paper feeding direction. The photosensitive component 60 abuts against the transfer component 20. The toner cartridge component 30 is located around the photosensitive component 60. The paper feeding component 40 can stably and continuously feed paper of different sizes to the transfer component 20, providing paper for transfer in the subsequent fixing system. The toner cartridge component 30 supplies toner to the photosensitive component 60. After the photosensitive component 60, in conjunction with the transfer component 20, accurately transfers the toner onto the paper surface, the paper can directly enter the fixing area of ​​the fixing component 10. The outer casing 50 integrates and encapsulates core components such as the paper supply assembly 40, toner cartridge assembly 30, transfer assembly 20, and fixing assembly 10. This prevents the internal core components of the printing system from being contaminated by external factors and provides physical protection. It also reduces component collisions during transportation and storage, thereby improving the overall structural reliability of the machine.

[0079] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A method for fixing multi-width paper, characterized in that, The multi-width paper fixing method includes: Based on the printing command trigger, status data is acquired; wherein, the status data includes the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller; Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is less than a first set range, the control unit selects a first heating unit to heat the heat-conducting roller; wherein, the first heating unit and the second heating unit are disposed in the hollow cavity of the heat-conducting roller; d3 > d1; d1 is the area where the heat-conducting roller is heated to the first temperature range when the first heating unit heats up; d3 is the area where the heat-conducting roller is heated to the first temperature range when the first heating unit and the second heating unit heat up simultaneously. Based on the temperature of the heat-conducting roller within a first temperature range, the control unit controls the heat-conducting roller to drive the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thereby completing the fixing process.

2. The multi-width paper fixing method according to claim 1, characterized in that, The multi-width paper fixing method further includes: Based on the fact that the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is within the first set range, the control unit selects a second heating unit to heat the heat-conducting roller; wherein, d2 > d1, d2 is the area where the second heating unit heats the heat-conducting roller to the first temperature range when it heats up, and d2 and d1 at least partially overlap.

3. The multi-width paper fixing method according to claim 2, characterized in that, Based on the temperature of the heat-conducting roller within a first temperature range, the control unit controls the heat-conducting roller to drive the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thereby completing the fixing process, including: Based on the temperature at the contact point between the heat-conducting roller and the pressurizing unit within a first temperature range, temperature data at the contact point is continuously acquired. Simultaneously, the paper is located at the contact point between the heat-conducting roller and the pressurizing unit, and the paper moves synchronously with the rotation of the heat-conducting roller. Based on the temperature at the contact point being within a second temperature range, the control unit controls the first heating unit and the second heating unit to simultaneously heat the heat-conducting roller; wherein, the maximum value of the second temperature range is less than the minimum value of the first temperature range; Since the temperature of the heat-conducting roller is greater than the first temperature range, the control unit controls the first heating unit to reduce the heat generation; The heat-conducting roller drives the paper to be fixed through the contact point between the heat-conducting roller and the pressure unit, thus completing the fixing process.

4. The multi-width paper fixing method according to claim 1, characterized in that, The multi-width paper fixing method further includes: Since the maximum dimension of the paper to be printed along the axial direction of the heat-conducting roller is greater than the first set range, the control unit selects the first heating unit and the second heating unit to heat the heat-conducting roller simultaneously.

5. The multi-width paper fixing method according to claim 1, characterized in that, The acquisition of status data based on the print command trigger includes: Triggered by a printing command, the control unit controls the first heating unit and the second heating unit to heat the heat-conducting roller, while simultaneously acquiring status data. Based on the fact that the temperature of the heat-conducting roller is within the third temperature range, the control unit controls the first heating unit and the second heating unit to shut down.

6. A fixing assembly, characterized in that, The fixing assembly is applied to the multi-width paper fixing method according to any one of claims 1-5, and the fixing assembly includes a first heating unit, a second heating unit, a heat conducting unit, and a pressure applying unit; The heat-conducting unit includes a heat-conducting roller and a driving unit; the heat-conducting roller is drivenly connected to the driving unit; the first heating unit and the second heating unit are disposed in the hollow cavity of the heat-conducting roller; wherein, d3 > d1; d1 is the region where the heat-conducting roller is heated to a first temperature range when the first heating unit heats up; d3 is the region where the heat-conducting roller is heated to the first temperature range when the first heating unit and the second heating unit heat up simultaneously; The pressurizing unit is parallel to the central axis of the heat-conducting roller; the pressurizing unit abuts against the heat-conducting roller, and the pressurizing unit is drivenly connected to the heat-conducting roller; The fixing assembly includes a fixing state; the fixing state includes: the control unit controls the first heating unit and the second heating unit to heat the heat-conducting roller, the driving unit drives the heat-conducting roller to rotate, and the heat-conducting roller drives the heating unit to rotate.

7. A fixing assembly according to claim 6, characterized in that, The first heating unit includes a first heating element; the second heating unit includes a second external heating element and a second internal heating element. The first heating element, the second external heating element, and the second internal heating element are respectively disposed in the hollow cavity of the heat-conducting roller; the two second external heating elements are respectively connected to the two axially opposite ends of the second internal heating element; The dimensions of the two second external heating elements and the second internal heating element along the axial direction of the heat-conducting roller are greater than the dimensions of the first heating element along the axial direction of the heat-conducting roller; The fixing state includes: the first heating element, the second external heating element, and the second internal heating element heating the heat-conducting roller.

8. A fixing assembly according to claim 7, characterized in that, The first heating element is located between the second inner heating element and the pressurization unit; The projection of the first heating element along the axis of the heat-conducting roller is at least partially coincident with the two second outer heating elements.

9. A fixing assembly according to claim 8, characterized in that, The fixing state includes: the heating power of the second external heating element is greater than the heating power of the second internal heating element.

10. A printing system, characterized in that, Includes the fixing assembly as described in any one of claims 6-9; The printing system further includes a paper feeding assembly, a toner cartridge assembly, a transfer assembly, and a housing assembly; the paper feeding assembly, the transfer assembly, and the fixing assembly are sequentially arranged inside the housing assembly along the paper feeding direction; the toner cartridge assembly is arranged around the transfer assembly.

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