Fixing assembly and printer

Abstract

The utility model belongs to the field of printing equipment, and particularly relates to a fixing assembly and a printer, the fixing assembly is provided with a pressure relief structure, the pressure relief structure can be linked with a paper discharge cover, and the pressure relief structure can move between a closing position corresponding to pressing of a pressing roller and an opening position corresponding to separation of a heating roller and the pressing roller. And the paper discharging cover is driven to be closed or opened. The paper discharging cover can be driven to be opened through the decompression structure, pressure between the pressurizing roller and the heating roller is relieved, operation is easy, and card paper is convenient to take out.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, and in particular to a fixing component and a printer. Background Technology

[0002] Printers are an indispensable computer peripheral in modern offices. Documents to be printed must be "translated" into a printing language by the printer driver before the printer can process them. For laser printers, the laser beam generated by the laser is modulated by an optical modulator, carrying the translated printing information. The laser beam irradiates the photosensitive drum of the developing unit. The photosensitive drum is charged by a charging roller. The laser irradiation removes unwanted charges from the surface of the photosensitive drum, leaving only the necessary charges, thus forming a charged latent image on the surface. When the photosensitive drum comes into contact with toner from the toner cartridge in the developing unit, the statically charged areas attract toner, while the discharged areas remain blank, forming the image to be printed on the surface of the photosensitive drum. Then, by applying voltage to the transfer roller, the toner on the surface of the photosensitive drum is attracted to the printing paper. The paper carrying the toner is then conveyed to the printer's fusing unit. The fusing unit heats the passing printing paper, melting the toner into the fibers of the printing paper to form a durable pattern.

[0003] A fixing assembly typically includes a heating roller and a pressure roller. The heating roller provides the heat source, while the pressure roller, usually using an elastic element, presses against the heating roller to allow the molten toner to better bond with the paper fibers. When paper gets stuck in the fixing assembly, the contact pressure between the heating roller and the pressure roller needs to be released to facilitate paper removal. In existing technology, the fixing assembly is located near the paper output port, and a paper output cover is provided at the paper output end of the fixing assembly to guide the paper out along the paper path. Releasing the pressure between the heating roller and the pressure roller often requires first opening the paper output cover and then operating the decompression mechanism to release the pressure between the heating roller and the pressure roller, which is a rather cumbersome process. Utility Model Content

[0004] This application provides a fuser assembly and a printer to solve the technical problem of a cumbersome operation process when removing a paper jam from the fuser assembly.

[0005] Therefore, according to one aspect of this application, a fixing assembly is provided, comprising:

[0006] The frame is used to support the heating roller and the pressure roller;

[0007] A paper feed cover, located on the upper part of the frame, is used to guide the printing media;

[0008] The decompression structure is disposed at both ends of the frame along the direction of the heating roller axis and is movably connected to the paper discharge cover. The decompression structure can move between the closed position corresponding to the pressure roller pressing the heating roller and the open position corresponding to the separation of the heating roller from the pressure roller, so as to drive the paper discharge cover to close or open.

[0009] Optionally, the frame includes a connecting seat and a bracket; the bracket is movably connected to the connecting seat, the paper discharge cover is rotatably connected to the connecting seat, and the paper discharge cover, the bracket, and the connecting seat form an installation cavity; the heating roller is located in the installation cavity and rotatably mounted on the connecting seat, and the pressure roller is located in the installation cavity and rotatably mounted on the bracket.

[0010] Optionally, it also includes an elastic element, one end of which is connected to the bracket and the other end of which is connected to the connecting seat. When the decompression structure is in the closed position, the pressure roller abuts against the heating roller under the action of the elastic element. During the process of the decompression structure moving from the closed position to the open position, the decompression structure pushes the bracket outward to overcome the elastic force of the elastic element, thereby separating the pressure roller and the heating roller.

[0011] Optionally, the decompression structure includes a flipping component and a pushing component. The flipping component has a rotating end and a force-applying end that are arranged opposite to each other. The rotating end is connected to the pushing component and rotatably connected to the connecting seat. The flipping component is provided with a guide portion extending from the rotating end to the force-applying end. The end of the paper discharge cover is provided with a sliding portion that slides with the guide portion.

[0012] Optionally, the rotating end of the flipping member is provided with a mounting hole, the force-applying end of the flipping member is provided with a force-applying part, the pushing member includes a rotating shaft and a cam disposed at one end of the rotating shaft, the end of the connecting seat is provided with a rotating hole, and one end of the rotating shaft passes through the rotating hole and is connected to the mounting hole.

[0013] Optionally, the rotating shaft includes a cylindrical rotating part and a connecting part connected to one end of the rotating part. The rotating part is rotatably connected to the rotating hole. The end of the rotating part away from the connecting part is fixedly connected to the cam. The connecting part is a columnar structure with a trapezoidal cross-section. The mounting hole is a trapezoidal hole adapted to the connecting part.

[0014] Optionally, the guide portion includes a guide groove or a guide through hole, and the sliding portion includes a columnar protrusion, one end of which extends into the guide groove or the guide through hole away from the paper discharge cover.

[0015] Optionally, the connecting seat is provided with a first locking part, and the flipping member is provided with a second locking part adapted to the first locking part. When the decompression structure is in the closed position, the first locking part and the second locking part are locked together.

[0016] Optionally, the connecting seat includes a first base and a second base, the second base being connected to the first base, the heating roller being disposed in the second base, and the paper discharge cover being rotatably connected to the first base; the bottom of the bracket is provided with an opening groove, and the second base is provided with a support part corresponding to the opening groove at the bottom of the bracket, the support part being embedded in the opening groove to support the bracket.

[0017] According to another aspect of this application, a printer is provided, including a fixing component as described above.

[0018] The beneficial effects of the fuser assembly and printer provided in this application are as follows: Compared with the prior art, the fuser assembly of this application is equipped with a decompression structure. This decompression structure is located at the end of the connecting seat and is linked to the paper output cover. When the decompression structure switches from the closed position to the open position, it drives the paper output cover to rotate relative to the connecting seat, thereby switching the paper output cover from the closed state to the open state. At the same time, the decompression structure pushes the bracket outward, so that the pressure roller moves away from the heating roller. That is, the decompression structure can drive the paper output cover to open and simultaneously release the pressure between the pressure roller and the heating roller, making the operation simple and convenient for removing paper jams. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 This is a schematic diagram of the structure of the fixing assembly in the closed position according to an embodiment of this application;

[0022] Figure 2 yes Figure 1 A schematic diagram of the fixing assembly from another perspective;

[0023] Figure 3 yes Figure 1 The diagram shown is a structural schematic of the fuser assembly after the paper feed cover has been removed.

[0024] Figure 4This is a partial structural schematic diagram of the fixing assembly in the closed position, as shown in one embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the fixing assembly in the open position as shown in one embodiment of this application;

[0026] Figure 6 yes Figure 5 A schematic diagram of the fixing assembly from another perspective;

[0027] Figure 7 This is a schematic diagram of the structure of the support in the fixing assembly shown in one embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the decompression structure in a fixing assembly according to an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the pusher in the decompression structure of the fixing assembly according to an embodiment of this application;

[0030] Figure 10 This is a schematic diagram of the flipping element in the decompression structure of the fixing assembly according to an embodiment of this application;

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Connecting seat; 11. First base; 112. First snap-fit ​​part; 12. Second base; 121. Support part;

[0033] 20. Bracket; 21. Opening slot;

[0034] 30. Paper feed cover; 31. Stop; 32. Sliding part;

[0035] 40. Heating roller;

[0036] 50. Pressure roller;

[0037] 60. Elastic components;

[0038] 70. Decompression structure; 71. Flip-over component; 711. Rotating end; 7111. Mounting hole; 712. Force-applying end; 7121. Force-applying part; 713. Guide part; 714. Second locking part; 72. Pushing component; 721. Rotating shaft; 7211. Rotating part; 7212. Connecting part; 722. Cam;

[0039] 80. Snap ring;

[0040] 90. Paper feed rollers. Detailed Implementation

[0041] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0046] According to one aspect of this application, embodiments of this application provide a fixing component, such as... Figures 1-6 As shown, the fixing assembly includes a frame, a paper discharge cover 30, and a decompression structure 70. The frame supports the heating roller 40 and the pressure roller 50. The paper discharge cover 30 is located on the upper part of the frame and is used to guide the printing medium (such as paper). The decompression structure 70 is located at both ends of the frame in the direction of the roller axis of the heating roller 40 or the roller axis of the pressure roller 50, and is movably connected to the paper discharge cover 30. The decompression structure 70 can move between a closed position corresponding to the heating roller 40 contacting the pressure roller 50 and an open position corresponding to the heating roller 40 separating from the pressure roller 50, so as to drive the paper discharge cover 30 to close or open.

[0047] The frame includes a connecting seat 10 and a bracket 20. The bracket 20 is movably connected to the connecting seat 10, and the paper discharge cover 30 is rotatably connected to the connecting seat 10. The paper discharge cover 30, the bracket 20, and the connecting seat 10 together form an installation cavity. The heating roller 40 is located in the installation cavity and rotatably mounted on the connecting seat 10, and the pressure roller 50 is located in the installation cavity and rotatably mounted on the bracket 20. A decompression structure 70 is located at the end of the connecting seat 10 and connected to the end of the paper discharge cover 30. The decompression structure 70 can rotate relative to the connecting seat 10 to reach a closed position (corresponding to the contact between the heating roller 40 and the pressure roller 50, e.g.) Figure 1 and Figure 2 (as shown) and the open position (corresponding to the separation of heating roller 40 and pressure roller 50, as shown) Figure 5 and Figure 6 The pressure roller 50 is in contact with the heating roller 40 when the decompression structure 70 is in the closed position. When the decompression structure 70 is in the closed position, the paper discharge cover 30 is in the closed state and the pressure roller 50 abuts against the heating roller 40. When the decompression structure 70 moves from the closed position to the open position, the decompression structure 70 drives the paper discharge cover 30 to rotate relative to the connecting seat 10, so that the paper discharge cover 30 switches from the closed state to the open state. At the same time, the decompression structure 70 pushes the bracket 20 outward to separate the pressure roller 50 and the heating roller 40.

[0048] In this embodiment, the fixing assembly is provided with a decompression structure 70, which is located at the end of the connecting seat 10 and linked with the paper discharge cover 30. When the decompression structure 70 switches from the closed position to the open position, it drives the paper discharge cover 30 to rotate relative to the connecting seat 10, thus switching the paper discharge cover 30 from a closed state to an open state. Simultaneously, the decompression structure 70 pushes the bracket 20 outward, separating the pressure roller 50 and the heating roller 40. In other words, the decompression structure 70 can open the paper discharge cover 30 and simultaneously release the pressure between the pressure roller 50 and the heating roller 40, making operation simple and convenient for removing jammed paper.

[0049] like Figure 1 , Figure 2 and Figure 5 As shown, the connecting seat 10 includes a first base 11 and a second base 12. The second base 12 is connected to the first base 11, and the two can be connected by screws. The heating roller 40 is disposed in the second base 12, and the paper discharge cover 30 is rotatably connected to the first base 11.

[0050] Understandably, the heating roller 40 contains a heating element for heating, and the two ends of the pressure roller 50 are rotatably connected to the support 20, which is movably connected to the second base 12, such that the heating roller 40 and the pressure roller 50 are arranged parallel to each other and close to each other along their length. When the fixing assembly is working, the paper passes between the heating roller 40 and the pressure roller 50 to fix the toner on the paper. In some cases (such as paper jams), it is necessary to separate the pressure roller 50 and the heating roller 40 to achieve fixing decompression.

[0051] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the bracket 20 is generally elongated, with both ends movably connected to the second base 12 of the connecting seat 10. Specifically, the bottom of the bracket 20 has a U-shaped opening groove 21. The second base 12 has a support portion 121 corresponding to the opening groove 21, which is embedded in the opening groove 21 to support the bracket 20. At the same time, the depth of the opening groove 21 can also limit the range of movement of the bracket 20 relative to the second base 12. Thus, during the process of the decompression structure 70 switching from the closed position to the open position, the decompression structure 70 pushes the bracket 20 outward, and the bracket 20, together with the pressure roller 50, rotates as a whole relative to the second base 12 of the connecting seat 10.

[0052] like Figure 1 and Figure 3 As shown, the paper discharge cover 30 is generally plate-shaped and is used to guide the paper discharge. It is rotatably connected to the connecting seat 10, so that the paper discharge cover 30 can be opened or closed relative to the connecting seat 10. Specifically, the two ends of the paper discharge cover 30 are rotatably connected to the first base 11 through connecting shafts, so that the paper discharge cover 30 can be opened at a certain angle relative to the first base 11.

[0053] Furthermore, a paper discharge roller 90 is provided on the second base 12 along the direction in which the paper is discharged from the paper discharge cover 30, for guiding the paper to be discharged from the fixing structure. A stop part 31 is provided on the outer wall of the paper discharge cover 30, and the stop part 31 engages with a corresponding structure on the printer cover to maintain stable contact between the fixing assembly and the printer cover after the printer cover is closed.

[0054] In one embodiment, such as Figures 4-6 As shown, the fixing assembly also includes an elastic element 60. One end of the elastic element 60 is connected to the bracket 20, and the other end is connected to the connecting seat 10. When the decompression structure 70 is in the closed position, the pressure roller 50 contacts the heating roller 40 under the action of the elastic element 60. During the process of the decompression structure 70 switching from the closed position to the open position, the decompression structure 70 pushes the bracket 20 outward. The bracket 20 overcomes the elastic force of the elastic element 60, causing the pressure roller 50 and the heating roller 40 to separate.

[0055] Specifically, a decompression structure 70 is provided on each of the two axial ends of the first base 11. When the decompression structure 70 is in the open position, the paper discharge cover 30 is opened. At the same time, the elastic element 60 between the heating roller 40 and the pressure roller 50 is stretched, and the heating roller 40 and the pressure roller 50 are separated.

[0056] It is understandable that the elastic element 60 can be made of elastic components such as springs or rubber bands.

[0057] In one embodiment, such as Figures 2-5 As shown, the decompression structure 70 includes a flipping member 71 and a pushing member 72. The flipping member 71 has a rotating end 711 and a force-applying end 712 that are arranged opposite to each other. The rotating end 711 is connected to the pushing member 72 and is rotatably connected to the connecting seat 10. The flipping member 71 is provided with a guide portion 713 extending from the rotating end 711 to the force-applying end 712. The end of the paper discharge cover 30 is provided with a sliding portion 32 that slides with the guide portion 713. External force is applied to the flipping member 71 by the force-applying end 712, causing the decompression structure 70 to switch between the closed and open positions. When the decompression structure 70 is in the closed position, the sliding part 32 is located at the end of the guide part 713 near the force-applying end 712, and the pushing member 72 is disengaged from the bracket 20. During the process of the decompression structure 70 switching from the closed position to the open position, the flipping member 71 drives the sliding part 32 to move from the force-applying end 712 to the rotating end 711 in the guide part 713, so that the paper discharge cover 30 switches from the closed state to the open state. At the same time, the pushing member 72 pushes the bracket 20 outward, so that the pressure roller 50 moves away from the heating roller 40.

[0058] As set above, the decompression structure 70 is simple in structure and easy to operate.

[0059] In one specific embodiment, combined with Figures 8-10 As shown, the rotating end 711 of the flipping member 71 is provided with a mounting hole 7111, and the force-applying end 712 of the flipping member 71 is integrally formed with a force-applying part 7121. The pushing member 72 includes a rotating shaft 721 and a cam 722 integrally formed at one end of the rotating shaft 721. The end of the connecting seat 10 (specifically the first base 11) is provided with a rotating hole. One end of the rotating shaft 721 passes through the rotating hole and is connected to the mounting hole 7111. By applying force to the force-applying end 712 of the flipping member 71, the cam 722 can be driven to rotate with the flipping member 71 relative to the axis of the rotating shaft 721. The cam 722 pushes the bracket 20 outward during the process of the decompression structure 70 switching from the closed position to the open position.

[0060] Specifically, the rotating shaft 721 includes a cylindrical rotating part 7211 and a connecting part 7212 connected to one end of the rotating part 7211. The rotating part 7211 is rotatably connected to the rotating hole. The end of the rotating part 7211 away from the connecting part 7212 is fixedly connected to the cam 722. The connecting part 7212 is a columnar structure with a trapezoidal cross section. The mounting hole 7111 is a trapezoidal hole adapted to the connecting part 7212.

[0061] When assembling the decompression structure 70, the rotating part 7211 of the rotating shaft 721 is inserted into the rotating hole on the connecting seat 10. The cam 722 and the connecting part 7212 are located on the inner and outer sides of the end of the first base 11, respectively. Then, the connecting part 7212 is inserted into the mounting hole 7111 on the flipping part 71 and axially limited by the snap ring 80.

[0062] The trapezoidal mounting hole 7111 and the trapezoidal cross-section connecting part 7212 cooperate to prevent relative rotation of the flipping part 71 and the pushing part 72 after assembly; on the other hand, it can play a role in preventing mistakes.

[0063] In one specific embodiment, combined with Figure 2 , Figure 5 and Figure 10 As shown, the guide part 713 includes a guide groove or a guide through hole, and the sliding part 32 includes a columnar protrusion, one end of which extends into the guide groove or guide through hole away from the paper discharge cover 30.

[0064] In one specific embodiment, combined with Figure 2 , Figure 5 and Figure 10 As shown, the connecting seat 10 is provided with a first locking part 112, and the flipping part 71 is provided with a second locking part 714 that is adapted to the first locking part 112. When the decompression structure 70 is in the closed position, the first locking part 112 and the second locking part 714 are locked together to fix the flipping part 71.

[0065] In this case, one of the first snap-fit ​​portion 112 and the second snap-fit ​​portion 714 is a male snap (i.e., a protrusion), and the other is a female snap (i.e., a groove).

[0066] In summary, combining Figures 1-10 As shown, during the opening process of the decompression structure 70, the force is applied upward to the flipping member 71 by holding the force application part 7121. The second locking part 714 on the flipping member 71 disengages from the first locking part 112 on the first base 11. The guide part 713 on the flipping member 71 drives the sliding part 32 at the end of the paper discharge cover 30 to move from the force application end 712 to the rotating end 711. The flipping member 71 drives the rotating shaft 721 to rotate. The protruding part of the cam 722 rotates to contact the end of the bracket 20 and continues to apply force. The cam 722 pushes open the end of the bracket 20. The bracket 20 drives the elastic member 60 to stretch, so that the pressure roller 50 separates from the heating roller 40.

[0067] During the closing process of the decompression structure 70, by holding the force application part 7121, a downward force is applied to the flipping part 71. The guide part 713 on the flipping part 71 drives the sliding part 32 at the end of the paper discharge cover 30 to move from the rotating end 711 to the force application end 712. The flipping part 71 drives the rotating shaft 721 to rotate. The protruding part of the cam 722 gradually separates from the end of the bracket 20 and continues to apply force. The elastic member 60 drives the bracket 20 to return to the state when the pressure roller 50 is in contact with the heating roller 40. Finally, the first locking part 112 and the second locking part 714 lock together.

[0068] According to another aspect of this application, embodiments of this application also provide a printer, particularly a laser printer. The printer includes a fixing assembly as described in the above embodiments, which fixes the toner coating on the paper using a combination of heating and pressurization.

[0069] Because the fixing component in the above embodiments is used, it also has the advantages and benefits brought by the fixing component, making it easy to remove the paper jam when the fixing component jams.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A fixing assembly, characterized in that, include: The frame is used to support the heating roller and the pressure roller; A paper feed cover, located on the upper part of the frame, is used to guide the printing media; The decompression structure is disposed at both ends of the frame along the direction of the heating roller axis and is movably connected to the paper discharge cover. The decompression structure can move between the closed position corresponding to the pressure roller pressing the heating roller and the open position corresponding to the separation of the heating roller from the pressure roller, so as to drive the paper discharge cover to close or open.

2. The fixing assembly according to claim 1, characterized in that, The frame includes a connecting seat and a bracket; the bracket is movably connected to the connecting seat, the paper discharge cover is rotatably connected to the connecting seat, and the paper discharge cover, the bracket, and the connecting seat form an installation cavity; the heating roller is located in the installation cavity and rotatably mounted on the connecting seat, and the pressure roller is located in the installation cavity and rotatably mounted on the bracket.

3. The fixing assembly according to claim 2, characterized in that, It also includes an elastic element, one end of which is connected to the bracket and the other end of which is connected to the connecting seat. When the decompression structure is in the closed position, the pressure roller abuts against the heating roller under the action of the elastic element. During the process of the decompression structure moving from the closed position to the open position, the decompression structure pushes the bracket outward to overcome the elastic force of the elastic element, thereby separating the pressure roller and the heating roller.

4. The fixing assembly according to claim 2, characterized in that, The decompression structure includes a flipping component and a pushing component. The flipping component has a rotating end and a force-applying end that are arranged opposite to each other. The rotating end is connected to the pushing component and rotatably connected to the connecting seat. The flipping component is provided with a guide portion extending from the rotating end to the force-applying end. The end of the paper discharge cover is provided with a sliding portion that slides with the guide portion.

5. The fixing assembly according to claim 4, characterized in that, The rotating end of the flipping component is provided with a mounting hole, the force-applying end of the flipping component is provided with a force-applying part, the pushing component includes a rotating shaft and a cam disposed at one end of the rotating shaft, the end of the connecting seat is provided with a rotating hole, and one end of the rotating shaft passes through the rotating hole and is connected to the mounting hole.

6. The fixing assembly according to claim 5, characterized in that, The rotating shaft includes a cylindrical rotating part and a connecting part connected to one end of the rotating part. The rotating part is rotatably connected to the rotating hole. The end of the rotating part away from the connecting part is fixedly connected to the cam. The connecting part is a columnar structure with a trapezoidal cross-section. The mounting hole is a trapezoidal hole adapted to the connecting part.

7. The fixing assembly according to claim 4, characterized in that, The guiding part includes a guide groove or a guide through hole, and the sliding part includes a columnar protrusion, one end of which extends into the guide groove or the guide through hole away from the paper discharge cover.

8. The fixing assembly according to any one of claims 4-7, characterized in that, The connecting seat is provided with a first locking part, and the flipping part is provided with a second locking part that is adapted to the first locking part. When the decompression structure is in the closed position, the first locking part and the second locking part are locked together.

9. The fixing assembly according to claim 2, characterized in that, The connecting seat includes a first base and a second base, the second base being connected to the first base, the heating roller being disposed in the second base, and the paper discharge cover being rotatably connected to the first base; the bottom of the bracket is provided with an opening groove, and the second base is provided with a support part corresponding to the opening groove at the bottom of the bracket, the support part being embedded in the opening groove to support the bracket.

10. A printer, characterized in that, Includes the fixing component as described in any one of claims 1-9.

Images