Toner cartridge, laser printer and working method thereof

Abstract

The present invention provides a toner cartridge, a laser printer and a working method thereof. The laser printer comprises a housing and a door cover. A powder cartridge accommodating chamber is provided in the housing. A stylus mechanism is provided in the powder cartridge accommodating chamber. The stylus mechanism comprises a base provided with a chip stylus, a push rod assembly and a first elastic reset member. The push rod assembly is installed at the first end in the length direction of the powder cartridge accommodating chamber. The base is connected to the push rod assembly. The push rod assembly comprises a first force-bearing portion, a reset pressing portion and a first force-applying portion. The first force-bearing portion abuts against the door cover. In the first direction, the first force-applying portion is located between the reset pressing portion and the first force-bearing portion. A rear wall opposite to the powder cartridge mounting port is provided in the powder cartridge accommodating chamber. The first elastic reset member is installed on the rear wall. The free end of the first elastic reset member abuts against the reset pressing portion. After the first force-bearing portion is subjected to the pressure applied by the door cover, the push rod is driven to move and the base is driven to move downward. The laser printer can simplify the structure of the toner cartridge used.

Description

Technical Field

[0001] The invention relates to the field of electronic imaging equipment, in particular to a toner cartridge, a laser printer and a working method thereof. Background Art

[0002] An electrophotographic image forming apparatus such as a laser printer generally has an image processing unit and a toner cartridge detachably mounted to the image processing unit.

[0003] There is a toner cartridge, which includes a developing unit and a toner cartridge detachably mounted on the developing unit. Since both the developing unit and the toner cartridge can be detachably mounted, both use opening and closing components to open and close the corresponding powder inlet and powder outlet to prevent leakage of toner in the toner cartridge. The opening and closing components on the toner cartridge include a sealing member located inside the powder outlet and a sealing cover plate covering the outside of the powder outlet. The sealing member is provided with an opening. When the opening is aligned with the powder outlet and the sealing cover plate is opened, the powder outlet is opened. After opening the sealing cover plate outside the powder outlet and the sealing member inside the powder outlet, the toner passes through the powder outlet of the toner cartridge and enters the developing chamber from the powder inlet of the developing unit. The entire linkage system structure on the existing toner cartridge is complex, the assembly and installation process is complex, the process is complex, the parts are also large, and the toner cartridge cost is high. At the same time, two pressing protrusions are provided on the door cover of the laser printer, and the two pressing protrusions are connected to the door cover through two springs with different stiffnesses. After the toner cartridge is installed, the two pressing protrusions respectively abut against the rear wall of the toner cartridge, among which the pressing protrusion connected to the spring with small stiffness abuts against the rear wall of the cartridge body, and the pressing protrusion connected to the spring with large stiffness abuts against the push rod in the linkage system, thereby driving the powder outlet to open, and at the same time making the toner cartridge chip assembly electrically connected to the chip contact pin in the laser printer.

[0004] Since the pressing protrusion needs to drive the seal to rotate and the chip assembly to move upward at the same time when applying force to the push rod, the pressing protrusion is often subjected to a large reaction force. After long-term use, the spring connected to the pressing protrusion may fail, making it impossible to open the powder outlet and push the chip assembly to the position where it is electrically connected to the chip contact pin in the laser printer. Summary of the invention

[0005] The first object of the present invention is to provide a laser printer that can simplify the structure of the carbon powder cartridge used, ensure stable opening of the powder outlet, and improve the stability of the electrical connection between the chip assembly and the chip contact pin.

[0006] A second object of the present invention is to provide a carbon powder cartridge with a simple structure, high assembly efficiency and the ability to stably open a powder outlet.

[0007] The third object of the present invention is to provide a working method of the above-mentioned laser printer.

[0008] To achieve the above object, the present invention provides a laser printer, including a shell and a door cover, wherein a powder cartridge accommodating chamber is provided in the shell, a powder cartridge mounting opening is provided at one end of the powder cartridge accommodating chamber in a first direction, the door cover is installed at the powder cartridge mounting opening for opening and closing the powder cartridge mounting opening, a stylus mechanism is provided at the first end in the length direction of the powder cartridge accommodating chamber, and the stylus mechanism is located above the powder cartridge accommodating chamber; the stylus mechanism includes a base, and a plurality of chip stylus are provided on the base; the stylus mechanism also includes: a push rod assembly, and the push rod assembly is installed at the first end in the length direction of the powder cartridge accommodating chamber. The base is connected to the push rod assembly, the push rod assembly includes a first force-bearing portion, a reset pressing portion and a first force-applying portion, the first force-bearing portion abuts against the door cover, and in the first direction, the first force-applying portion is located between the reset pressing portion and the first force-bearing portion; the first elastic reset member, the powder cartridge accommodating chamber is provided with a rear wall opposite to the powder cartridge mounting port, the first elastic reset member is installed on the rear wall, and the free end of the first elastic reset member abuts against the reset pressing portion; the first force-bearing portion drives the push rod assembly to move after receiving the pressure applied by the door cover, and the first force-applying portion drives the base to move downward.

[0009] It can be seen from the above scheme that by designing the base for fixing the chip contact pin in the laser printer into a structure that can move in the vertical direction, after the toner cartridge is installed, when the door cover is closed, the push rod assembly is forced to drive the base to move to a position where the chip contact pin is electrically connected to the chip assembly of the toner cartridge. In this way, when the connecting rod mechanism on the toner cartridge drives the seal to open the powder outlet, it is not necessary to drive the chip assembly to move at the same time, thereby simplifying the structure of the toner cartridge. Since the toner cartridge is a consumable part, it can also greatly reduce user costs. At the same time, since the connecting rod mechanism only needs to open the powder outlet, the reaction force on the pressing protrusion is small, which can avoid the failure of the spring connecting the pressing protrusion to open the powder outlet or the failure to push the chip assembly to the position electrically connected to the chip contact pin in the laser printer.

[0010] When the toner in the toner cartridge is used up, the door cover of the laser printer is opened, the push rod assembly is reset under the action of the restoring force of the first elastic reset member, and the base of the stylus mechanism is retracted and separated from the chip assembly of the toner cartridge.

[0011] A preferred solution is that the push rod assembly includes a force-applying component and a push rod; the force-applying component is provided with a first slide groove and a second slide groove, and the extension direction of the first slide groove intersects with the extension direction of the second slide groove; the base is provided with a first sliding protrusion, and the push rod is provided with a second sliding protrusion, the first sliding protrusion is slidably matched with the first slide groove and can be rotated relative to the first slide groove, and the second sliding protrusion is slidably matched with the second slide groove and can be rotated relative to the second slide groove; the reset pressing part and the first force-bearing part are respectively arranged at both ends of the length direction of the push rod.

[0012] A further solution is that the push rod and the base are respectively located on two opposite sides of the force-applying component in the length direction of the powder cartridge accommodating cavity.

[0013] It can be seen that the force-applying component is clamped between the push rod and the base, which can improve the stability of the connection structure.

[0014] A further solution is that the push rod includes a first rod segment and a second rod segment which are parallel and arranged in a vertical direction, the second rod segment is located below the first rod segment, the first force-bearing portion is located at the first end of the first rod segment, the second end of the first rod segment is connected to the second end of the second rod segment, and the second sliding protrusion is located at the first end of the second rod segment.

[0015] A further solution is that a supporting protrusion is provided on the top of the first end of the second rod segment, and the supporting protrusion supports the first rod segment from below.

[0016] It can be seen that the supporting protrusion provides support for the first rod section, thereby ensuring the stability of the push rod during movement.

[0017] A preferred solution is that at least two sliders are provided on the end wall of the first end of the powder cartridge accommodating chamber in the length direction, the multiple sliders are arranged along the first direction, the push rod is provided with a guide groove extending along the first direction, and the sliders are slidably matched with the guide groove.

[0018] It can be seen that the slide block cooperates with the guide groove to provide guidance for the moving direction of the push rod, thereby ensuring that the push rod applies a stable force to the base and preventing the push rod from flipping over.

[0019] A preferred solution is that a powder inlet is provided on the bottom wall of the powder cartridge accommodating chamber, and the powder inlet is located at a first end of the powder cartridge accommodating chamber in the length direction.

[0020] To achieve the above second purpose, the present invention provides a toner cartridge, which can be detachably installed in a laser printer; the toner cartridge comprises: a cartridge body, in which a powder storage chamber and a powder feeding channel are provided, which are interconnected; a powder outlet is provided at one end of the powder feeding channel; a sealing member is provided in the powder outlet, the sealing member comprises a sealing portion and a connecting port arranged along the circumferential direction; the sealing member is rotatably installed in the powder feeding channel, the connecting port is connected to the powder feeding channel, the sealing portion and the powder outlet are arranged opposite to each other along the radial direction of the sealing member and seal the powder outlet; a stirring mechanism, the stirring mechanism comprises a stirring frame, a spiral rod and a driving gear set, the stirring frame is provided In the powder storage chamber, the spiral rod is arranged in the powder delivery channel, the driving gear group is arranged at the first end of the barrel body, and the driving gear group drives the stirring frame and the spiral rod to rotate; the carbon powder barrel also includes: a chip assembly, the chip assembly is fixedly mounted on the second end of the barrel body; a connecting rod mechanism, the connecting rod mechanism is mounted on the second end of the barrel body, the connecting rod mechanism includes a connecting rod assembly and a second elastic reset member; the two ends of the second elastic reset member are respectively connected to the barrel body and the connecting rod assembly, the connecting rod assembly is provided with a second force-bearing part and a second force-applying part, the second force-applying part is hinged to the sealing part, and the second force-bearing part is subjected to force only to drive the sealing part to rotate and open the powder outlet.

[0021] It can be seen that when the door cover of the laser printer is closed, the first force-bearing part drives the push rod assembly to move after being subjected to force and drives the base on which the chip contact pin is installed to move downward, and then electrically connects with the chip assembly of the toner cartridge, thereby realizing a stable electrical connection between the chip assembly and the chip contact pin. At the same time, the second force-bearing part drives the connecting rod assembly to move after being subjected to force, and the force-applying part of the connecting rod assembly drives the seal to rotate, so that the connecting port is opposite to the powder outlet, thereby opening the powder outlet. The connecting rod assembly has a simple structure, few parts, and a simple assembly process, and can stably open the powder outlet. Since there is a mechanism in the printer to drive the chip contact pin to move, the chip assembly in the toner cartridge can be designed to be a fixed structure relative to the cartridge body, which can further simplify the structure of the connecting rod assembly and improve assembly efficiency.

[0022] When the toner in the toner cartridge is used up, the door cover of the laser printer is opened, the push rod assembly is reset under the restoring force of the first elastic reset member, the base of the stylus mechanism is retracted and separated from the chip assembly of the toner cartridge. At the same time, the connecting rod assembly is reset under the restoring force of the second elastic reset member, and the connecting rod assembly pulls the sealing member to rotate in the opposite direction to seal the powder outlet, so that when the toner cartridge is taken out from the laser printer, the residual toner in the toner cartridge can be prevented from leaking.

[0023] To achieve the third objective, the present invention provides a method for operating a laser printer, the laser printer comprising a shell and a door cover, a powder cartridge accommodating chamber being provided in the shell, a powder cartridge mounting opening being provided at one end of the powder cartridge accommodating chamber in a first direction, the door cover being installed at the powder cartridge mounting opening for opening and closing the powder cartridge mounting opening, a stylus mechanism being provided at a first end in a length direction of the powder cartridge accommodating chamber, the stylus mechanism being located above the powder cartridge accommodating chamber; the stylus mechanism comprising a base, a plurality of chip stylus being provided on the base; the stylus mechanism further comprising: a push rod assembly, the push rod assembly being installed on an end wall at a first end in a length direction of the powder cartridge accommodating chamber, the base being connected to the push rod assembly, the push rod assembly comprising a first force-bearing portion, a reset pressing portion and a first force-applying portion, the first force-bearing portion being in contact with the door cover, and in a first direction, the first force-applying portion being located between the reset pressing portion and the first force-bearing portion; a first elastic reset member, a rear wall being provided in the powder cartridge accommodating chamber opposite to the powder cartridge mounting opening, the first elastic reset member being installed on the rear wall, the first elastic reset member being installed on the rear wall, The free end of the reset member abuts against the reset pressing portion; the carbon powder cartridge is detachably installed in the powder cartridge accommodating chamber, the carbon powder cartridge comprises a cartridge body, a chip assembly and a connecting rod mechanism, the chip assembly is fixedly installed at one end of the cartridge body, a powder storage chamber and a powder feeding channel which are interconnected are provided in the cartridge body, a powder outlet is provided at one end of the powder feeding channel, a sealing member is provided in the powder outlet, the sealing member comprises a sealing member and a connecting port which are arranged along the circumferential direction, the sealing member is rotatably installed in the powder feeding channel, the connecting port is connected with the powder feeding channel, the sealing member and the powder outlet are arranged opposite to each other along the radial direction of the sealing member and seal the powder outlet, and the connecting rod mechanism is hinged to the sealing member; the working method comprises: loading the carbon powder cartridge into the powder cartridge accommodating chamber, docking the powder outlet with the powder inlet of the laser printer, and sealing the powder outlet with the sealing member; closing the door cover, the first force-bearing member is forced to drive the push rod assembly to move, and the first force-applying member drives the base to move downward until the chip contact pin is electrically connected with the chip assembly; the connecting rod mechanism is forced to drive the sealing member to rotate and open the powder outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a structural diagram of a stirring mechanism in a carbon powder cartridge embodiment of the present invention.

[0025] Figure 2 1 is a structural diagram of a chip assembly connecting rod assembly in an embodiment of a carbon powder cartridge of the present invention.

[0026] Figure 3 It is a structural exploded view of the chip assembly, the connecting rod mechanism and the sealing member in the embodiment of the carbon powder cartridge of the present invention.

[0027] Figure 4 It is a schematic structural diagram of the cooperation between the toner cartridge and the stylus mechanism in the laser printer embodiment of the present invention.

[0028] Figure 5 It is a structural exploded view of the stylus mechanism in the laser printer embodiment of the present invention.

[0029] Figure 6This is a state diagram of the base of the stylus mechanism in the laser printer embodiment of the present invention being in a retracted position and not electrically connected to the chip assembly of the toner cartridge.

[0030] Figure 7 This is a state diagram of the base of the stylus mechanism in the laser printer embodiment of the present invention being in an extended position and electrically connected to the chip assembly of the toner cartridge.

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0032] See also Figures 1 to 3 In this embodiment, the carbon powder cartridge includes a cartridge body 1, a first end cap 61, a second end cap 62, a stirring mechanism 2, a chip assembly 3 and a connecting rod mechanism 4. The cartridge body 1 is provided with a powder storage chamber 11 and a powder delivery channel 12 which are interconnected. A powder outlet 121 is provided at one end of the powder delivery channel 12. A sealing member 5 is provided in the powder outlet 121. The sealing member 5 includes a sealing portion 51 and a communication port (not shown) arranged along the circumferential direction. The sealing member 5 is rotatably installed in the powder delivery channel 12. The sealing member 5 is cylindrical. The communication port penetrates the sealing member 5 in the radial direction. The communication port is connected to the powder delivery channel 12. The sealing member 51 and the powder outlet 121 are arranged opposite to each other along the radial direction of the sealing member 5 and seal the powder outlet 121. Preferably, the sealing member 51 is made of rubber.

[0033] The stirring mechanism 2 includes a stirring frame 21, a screw rod 22 and a driving gear set 23. The stirring frame 21 is arranged in the powder storage chamber 11, the screw rod 22 is arranged in the powder delivery channel 12, the driving gear set 23 is arranged at the first end 101 of the barrel body 1 and is located in the space surrounded by the first end cover 61 and the barrel body 1, and the driving gear set 23 drives the stirring frame 21 and the screw rod 22 to rotate. The chip assembly 3 is fixedly mounted on the second end 102 of the barrel body 1. The chip assembly 3 can be directly fixed on the end wall 1021 of the second end 102 of the barrel body 1, or can be fixedly connected to the second end cover 62 and located in the space surrounded by the second end cover 62 and the barrel body 1.

[0034] The connecting rod mechanism 4 is installed at the second end 102 of the cylinder body 1 and is located in the space surrounded by the second end cover 62 and the cylinder body 1. The connecting rod mechanism 4 includes a connecting rod assembly 41, an elastic reset member and an elastic forced push member. The elastic forced push member is a torsion spring 43, and the elastic reset member is a tension spring 42.

[0035] The two ends of the tension spring 42 are respectively connected to the cylinder body 1 and the connecting rod assembly 41, and the connecting rod assembly 41 is provided with a force-bearing part 414 and a force-applying part 416, and the force-applying part 416 is hinged to the sealing member 5. The force-bearing part 414 drives the connecting rod assembly 41 to move, and the force-applying part 416 drives the sealing member 5 to rotate.

[0036] The connecting rod assembly 41 includes a push rod 411, a first connecting rod 412 and a second connecting rod 413. An opening 621 is provided at one end of the second end cover 62 away from the powder outlet 121 in the X direction (i.e., the first direction), the push rod 411 extends along the X direction and the force-bearing portion 414 at the end of the push rod 411 is exposed from the opening 621, the X direction is arranged to intersect with the vertical direction, preferably, the X direction is perpendicular to the vertical direction, the push rod 411 is provided with a slide groove 417 extending along the X direction, and two sliding protrusions 13 arranged at intervals are provided on the end wall 1021 of the second end 102 of the barrel body 1, and both sliding protrusions 13 are slidably matched with the slide groove 417. The two ends of the torsion spring 43 are respectively connected to the push rod 411 and the first connecting rod 412, the first end 4122 of the first connecting rod 412 is hinged to the cylinder body 1, the second end 4123 of the first connecting rod 412 is hinged to the second connecting rod 413, and the end of the second connecting rod 413 away from the first connecting rod 412 is hinged to the sealing member 5. The torsion spring 43 is installed on the end wall 1021 of the second end 102 of the cylinder body 1, and a limiting protrusion 4121 is provided on the first connecting rod 412 near the second end 4123. The first torsion arm 431 of the torsion spring 43 always abuts against the side of the limiting protrusion 4121 away from the second connecting rod 413, and the second torsion arm 432 of the torsion spring 43 abuts against the limiting protrusion 418 of the push rod 411. The first end of the tension spring 42 is connected to the mounting column 419 of the end wall 1021 of the cylinder body 1, and the second end of the tension spring 42 is connected to the limiting protrusion 418 of the push rod 411. In the length direction of the barrel body 1 , the tension spring 42 is located on a side of the push rod 411 close to the barrel body 1 .

[0037] See also Figures 4 to 7 The laser printer includes a housing (not shown), a door cover 7 and a stylus mechanism 8. A powder cartridge accommodating chamber is provided in the housing. A powder cartridge mounting opening is provided at one end of the powder cartridge accommodating chamber in the X direction. The door cover 7 is installed at the powder cartridge mounting opening for opening and closing the powder cartridge mounting opening. A powder inlet is provided on the bottom wall of the powder cartridge accommodating chamber. The powder inlet is located at the first end of the length direction of the powder cartridge accommodating chamber.

[0038] The first end of the powder cartridge accommodating chamber in the length direction is also provided with a stylus mechanism 8, which is located above the powder cartridge accommodating chamber. The second end of the powder cartridge accommodating chamber in the length direction is provided with a driving gear, which is used to transmit driving force to the driving gear set 23 of the carbon powder cartridge.

[0039] The contact pin mechanism 8 comprises a base 81, a push rod assembly 82 and an elastic reset member 83. The elastic reset member 83 is a spring. A plurality of chip contact pins 811 are arranged on the base 81. The push rod assembly 82 is mounted on the end wall of the first end of the length direction of the powder cartridge accommodating chamber. The base 81 is connected to the push rod assembly 82. The push rod assembly 82 comprises a force-bearing portion 821, a reset pressing portion 822 and a force-applying portion 823. The force-bearing portion 821 abuts against the door cover 7. In the X direction, the force-applying portion 823 is located between the reset pressing portion 822 and the force-bearing portion 821. A rear wall 71 opposite to the powder cartridge mounting port is arranged in the powder cartridge accommodating chamber. The elastic reset member 83 is mounted on the rear wall 71. The free end of the elastic reset member 83 abuts against the reset pressing portion 822. After the force-bearing portion 821 is subjected to the pressure F2 applied by the door cover 7, the push rod 85 is driven to move and the base 81 is driven to move downward.

[0040] The push rod assembly 82 includes a force-applying component 84 and a push rod 85. The force-applying component 84 is provided with a first slide groove 841 and a second slide groove 842. The extension direction of the first slide groove 841 intersects with the extension direction of the second slide groove 842. The force-applying portion 823 is located on the inner peripheral wall of the first slide groove 841. The base 81 is provided with a first sliding protrusion 812, and the push rod 85 is provided with a second sliding protrusion (not shown). The first sliding protrusion 812 is slidably matched with the first slide groove 841 and can rotate relative to the first slide groove 841, and the second sliding protrusion is slidably matched with the second slide groove 842 and can rotate relative to the second slide groove 842. The reset pressing portion 822 and the force-bearing portion 821 are respectively arranged at two ends of the push rod 85 in the length direction. The first rod section 851 of the push rod 85 and the base 81 are respectively located on opposite sides of the force-applying component 84 in the length direction of the powder cartridge accommodating chamber. The push rod 85 includes a first rod segment 851 and a second rod segment 852 which are arranged in parallel and in the vertical direction. The second rod segment 852 is located below the first rod segment 851. The force-bearing portion 821 is located at the first end of the first rod segment 851. The second end of the first rod segment 851 is connected to the second end of the second rod segment 852. The second sliding protrusion is located at the first end of the second rod segment 852. A supporting protrusion 854 is provided at the top of the first end of the second rod segment 852, and the supporting protrusion 854 supports the first rod segment 851 from below. At least two sliding blocks (not shown) are provided on the end wall of the first end of the powder cartridge accommodating chamber in the length direction. The plurality of sliding blocks are arranged along the X direction. A guide groove 855 extending along the X direction is provided on the push rod 85, and the sliding blocks are all slidably matched with the guide groove 855.

[0041] The working method of the laser printer includes: loading the toner cartridge into the cartridge accommodating chamber, sealingly docking the powder outlet 121 with the powder inlet of the laser printer, and sealing the powder outlet 121 with the sealing member 5. Next, closing the door cover 7, after the force-bearing portion 821 is subjected to the pressure F2, the first rod segment 851 is driven and the second rod segment 852 is driven to move along the X direction, the elastic reset member 83 is forced to be in a compressed state, the second sliding protrusion slides along the extension direction of the second slide groove 842, and at the same time, the force-applying member 84 rotates, the first sliding protrusion 812 slides along the first slide groove 841, and the force-applying portion 823 on the inner peripheral wall of the first slide groove 841 applies a downward force to the base 81, thereby driving the base 81 to move downward until the chip contact pin 811 is electrically connected to the chip assembly. At the same time, the pressing protrusion on the door cover 7 applies a force F1 to the force-bearing part 414, pushes the force-bearing part 414, and drives the push rod 411 to move along the X direction. The limiting protrusion 418 on the push rod 411 applies a force to the second torsion arm 432 of the torsion spring 43, and the torsion spring 43 rotates, so that the first torsion arm 431 of the torsion spring 43 pushes the limiting protrusion 4121, so that the first connecting rod 412 rotates around the first end 4122 of the first connecting rod 412, and the second end 4123 of the first connecting rod 412 drives the second connecting rod 413 to move and rotate, so that the second connecting rod 413 drives the seal 5 to rotate until the connecting port is opposite to the powder outlet 121, the powder outlet 121 is opened, and the powder outlet 121 is connected to the powder feeding channel 12.

[0042] As can be seen from the above, by designing the base for fixing the chip contact pin in the laser printer to be a structure that can move in the vertical direction, after the toner cartridge is installed, when the door cover is closed, the push rod assembly is forced to drive the base to move to a position where the chip contact pin is electrically connected to the chip assembly of the toner cartridge. In this way, when the connecting rod mechanism on the toner cartridge drives the seal to open the powder outlet, it is not necessary to drive the chip assembly to move at the same time, thereby simplifying the structure of the toner cartridge. Since the toner cartridge is a consumable part, it can also greatly reduce user costs. At the same time, since the connecting rod mechanism only needs to open the powder outlet, the reaction force on the pressing protrusion is small, which can avoid the failure of the spring connecting the pressing protrusion to open the powder outlet or the failure to push the chip assembly to the position electrically connected to the chip contact pin in the laser printer.

[0043] When the toner in the toner cartridge is used up, the door cover of the laser printer is opened, the push rod assembly is reset under the action of the restoring force of the first elastic reset member, and the base of the stylus mechanism is retracted and separated from the chip assembly of the toner cartridge.

[0044] In addition, the connecting rod assembly may also include only one push rod, and the force-bearing portion and the force-applying portion are respectively located at the two ends of the push rod in the length direction. The first rod segment and the second rod segment may be integrally formed, or may be fixedly connected, or the second end of the first rod segment may abut against the second end of the second rod segment. The connecting rod assembly may also be arranged on the top wall of the powder cartridge accommodating chamber. The above changes can also achieve the purpose of the present invention.

[0045] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser printer, comprising a housing and a door cover, wherein a powder cartridge accommodating chamber is provided in the housing, a powder cartridge mounting opening is provided at one end of the powder cartridge accommodating chamber in a first direction, the door cover is installed at the powder cartridge mounting opening and is used to open and close the powder cartridge mounting opening, a stylus mechanism is provided at a first end in a length direction of the powder cartridge accommodating chamber, and the stylus mechanism is located above the powder cartridge accommodating chamber; The contact pin mechanism comprises a base, on which a plurality of chip contact pins are arranged; It is characterized in that The stylus mechanism further comprises: A push rod assembly, the push rod assembly is installed at a first end of the powder cartridge accommodating chamber in the length direction, the base is connected to the push rod assembly, the push rod assembly includes a first force-bearing portion, a reset pressing portion and a first force-applying portion, the first force-bearing portion abuts against the door cover, and in the first direction, the first force-applying portion is located between the reset pressing portion and the first force-bearing portion; a first elastic reset member, wherein a rear wall opposite to the powder cartridge installation opening is provided in the powder cartridge accommodating chamber, the first elastic reset member is installed on the rear wall, and a free end of the first elastic reset member abuts against the reset pressing portion; The first force-bearing portion drives the push rod assembly to move after receiving the pressure applied by the door cover, and the first force-applying portion drives the base to move downward; The push rod assembly includes a force-applying component and a push rod; The force-applying component is provided with a first sliding groove and a second sliding groove, and an extension direction of the first sliding groove intersects with an extension direction of the second sliding groove; The base is provided with a first sliding protrusion, and the push rod is provided with a second sliding protrusion, the first sliding protrusion is slidably matched with the first sliding groove and can rotate relative to the first sliding groove, and the second sliding protrusion is slidably matched with the second sliding groove and can rotate relative to the second sliding groove; The reset pressing portion and the first force-bearing portion are respectively arranged at two ends of the push rod in the length direction.

2. The laser printer according to claim 1, characterized in that: The push rod and the base are respectively located on two opposite sides of the force-applying component in the length direction of the powder cartridge accommodating cavity.

3. The laser printer according to claim 1, characterized in that: The push rod includes a first rod segment and a second rod segment which are parallel and arranged in a vertical direction, the second rod segment is located below the first rod segment, the first force-bearing portion is located at the first end of the first rod segment, the second end of the first rod segment is connected to the second end of the second rod segment, and the second sliding protrusion is located at the first end of the second rod segment.

4. The laser printer according to claim 3, characterized in that: A supporting protrusion is disposed on the top of the first end of the second rod segment, and the supporting protrusion supports the first rod segment from below.

5. The laser printer according to any one of claims 1 to 4, characterized in that: At least two sliders are provided on the end wall of the first end of the powder cartridge accommodating chamber in the length direction, and the plurality of sliders are arranged along the first direction. The push rod is provided with a guide groove extending along the first direction, and the sliders are all slidably matched with the guide groove.

6. The laser printer according to any one of claims 1 to 4, characterized in that: A powder inlet is provided on the bottom wall of the powder cartridge accommodating chamber, and the powder inlet is located at a first end of the powder cartridge accommodating chamber in a length direction.

7. A toner cartridge, which is detachably mounted in a laser printer; a stylus mechanism is disposed above the toner cartridge accommodating chamber in the laser printer, the stylus mechanism comprising a base, and a plurality of chip stylus are disposed on the base; The carbon powder cartridge comprises: A barrel body, wherein a powder storage cavity and a powder delivery channel which are interconnected are provided in the barrel body, a powder outlet is provided at one end of the powder delivery channel, a sealing member is provided in the powder outlet, the sealing member comprises a sealing portion and a communication port which are arranged along the circumferential direction, the sealing member is rotatably installed in the powder delivery channel, the communication port is communicated with the powder delivery channel, the sealing portion and the powder outlet are arranged opposite to each other along the radial direction of the sealing member and seal the powder outlet; A stirring mechanism, the stirring mechanism comprising a stirring frame, a spiral rod and a driving gear set, the stirring frame is arranged in the powder storage chamber, the spiral rod is arranged in the powder feeding channel, the driving gear set is arranged at the first end of the barrel body, and the driving gear set drives the stirring frame and the spiral rod to rotate; Characterized in that the carbon powder cartridge also includes: A chip assembly, wherein the chip assembly is fixedly mounted at the second end of the barrel body, and the contact pin mechanism further comprises a push rod assembly, wherein the push rod assembly drives the base to move downward until the chip contact pin is electrically connected to the chip assembly; A connecting rod mechanism, the connecting rod mechanism is mounted on the second end of the barrel body, the connecting rod mechanism comprises a connecting rod assembly and a second elastic reset member; The two ends of the second elastic reset member are respectively connected to the barrel body and the connecting rod assembly, and the connecting rod assembly is provided with a second force-bearing portion and a second force-applying portion, the second force-applying portion is hinged to the sealing member, and the second force-bearing portion is subjected to force only to drive the sealing member to rotate and open the powder outlet.

8. A method for operating a laser printer, wherein the laser printer comprises a housing and a door cover, wherein a powder cartridge accommodating chamber is provided in the housing, wherein a powder cartridge mounting opening is provided at one end of the powder cartridge accommodating chamber in a first direction, wherein the door cover is installed at the powder cartridge mounting opening for opening and closing the powder cartridge mounting opening, wherein a stylus mechanism is provided at a first end in a length direction of the powder cartridge accommodating chamber, wherein the stylus mechanism is located above the powder cartridge accommodating chamber; The contact pin mechanism comprises a base, on which a plurality of chip contact pins are arranged; It is characterized in that The stylus mechanism further comprises: A push rod assembly, the push rod assembly is installed at a first end of the powder cartridge accommodating chamber in the length direction, the base is connected to the push rod assembly, the push rod assembly includes a first force-bearing portion, a reset pressing portion and a first force-applying portion, the first force-bearing portion abuts against the door cover, and in the first direction, the first force-applying portion is located between the reset pressing portion and the first force-bearing portion; a first elastic reset member, wherein a rear wall opposite to the powder cartridge installation opening is provided in the powder cartridge accommodating chamber, the first elastic reset member is installed on the rear wall, and a free end of the first elastic reset member abuts against the reset pressing portion; The push rod assembly includes a force-applying component and a push rod; The force-applying component is provided with a first sliding groove and a second sliding groove, and an extension direction of the first sliding groove intersects with an extension direction of the second sliding groove; The base is provided with a first sliding protrusion, and the push rod is provided with a second sliding protrusion, the first sliding protrusion is slidably matched with the first sliding groove and can rotate relative to the first sliding groove, and the second sliding protrusion is slidably matched with the second sliding groove and can rotate relative to the second sliding groove; The reset pressing portion and the first force-bearing portion are respectively arranged at two ends of the push rod in the length direction; The carbon powder cartridge is detachably mounted in the powder cartridge accommodating chamber, the carbon powder cartridge comprises a cartridge body, a chip assembly and a connecting rod mechanism, the chip assembly is fixedly mounted at one end of the cartridge body, a powder storage chamber and a powder feeding channel which are interconnected are provided in the cartridge body, a powder outlet is provided at one end of the powder feeding channel, a sealing member is provided in the powder outlet, the sealing member comprises a sealing portion and a connecting port which are arranged along the circumferential direction, the sealing member is rotatably mounted in the powder feeding channel, the connecting port is communicated with the powder feeding channel, the sealing portion and the powder outlet are arranged opposite to each other along the radial direction of the sealing member and seal the powder outlet, and the connecting rod mechanism is hinged to the sealing member; The working method comprises: The toner cartridge is loaded into the powder cartridge accommodating chamber, the powder outlet is connected to the powder inlet of the laser printer, and the sealing member seals the powder outlet; The door cover is closed, the first force-bearing part is forced to drive the push rod assembly to move, and the first force-applying part drives the base to move downward until the chip contact pin is electrically connected to the chip assembly; the connecting rod mechanism is forced to drive the seal to rotate and open the powder outlet.

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