Toner cartridge and working method of detection wheel assembly thereof

Abstract

The invention provides a toner cartridge and a working method of a detection wheel assembly thereof, the toner cartridge comprises a cartridge body, a rotating member, a gear train and a rotating member, the cartridge body is provided with a toner accommodating part, the end part of the cartridge body is provided with an end cover, and the rotating member is rotatably supported in the toner accommodating part; the gear train is arranged on the outer wall of the box body, is connected with the rotating component and drives the rotating component to rotate; the rotating part is rotatably installed in a containing space defined by the outer wall of the box body and the end cover, the rotating part is provided with a clutch wheel, the clutch wheel comprises a small-diameter part and a large-diameter part which are arranged in the circumferential direction, the large-diameter part is in transmission fit with one gear in the gear train, the toner cartridge further comprises a reset part and a stop part, the reset part forces the rotating part to rotate, and the stop part stops the rotating part. The stop part limits the number of turns of rotation of the clutch wheel. The reset part is located on the large-diameter part, the end cover is provided with an opening, and the reset part is exposed out of the end cover through the opening. The detection wheel assembly of the toner cartridge can be reset and can ensure the printing quality at the same time.

Description

Technical Field

[0001] The invention relates to the field of electronic imaging equipment consumables, in particular to a carbon powder box and a working method of a detection wheel assembly thereof. Background Art

[0002] Existing toner cartridges are all equipped with a detection wheel assembly to cooperate with the detection mechanism on the printer to detect the toner cartridge after it is installed on the printer, such as detecting whether the toner cartridge is used for the first time, the type of toner cartridge, the capacity of the toner cartridge, whether the toner cartridge is installed in place, etc. The toner cartridge mainly includes a box body, a stirring frame, a powder feeding roller, a developing roller and a power receiving head, and the detection wheel assembly mainly includes a detection wheel.

[0003] When the toner cartridge is first installed in the printer, the detection wheel assembly contacts the detection mechanism of the printer, and then the printer's drive head drives the power receiving head to rotate, so that the power receiving head drives the detection wheel to rotate through the transmission mechanism. When the detection wheel rotates a preset angle, the detection mechanism performs a detection on the detection wheel assembly to determine whether the toner cartridge is used for the first time, the type of the toner cartridge, the capacity of the toner cartridge, the number of printed sheets, etc. After completing this detection, the detection wheel is no longer driven by the power receiving head and the transmission mechanism. Since the existing detection wheel stops rotating after being used once, and the toner cartridge is identified through a one-time irreversible instantaneous detection, when the toner cartridge with this structure is refilled and installed for the second time, the printer cannot detect it because the detection wheel cannot be reset, resulting in the toner cartridge being unable to be used because it cannot be identified.

[0004] There is another type of printer whose detection wheel can automatically reset so that the toner cartridge can be recognized by the printer multiple times. However, if the printer fails due to paper jam or other reasons, when the user takes out the toner cartridge and then puts it into the printer again, the detection wheel will automatically reset, and the printer will recognize the toner cartridge as a new one and start counting again. In this way, when there is no toner in the toner cartridge, the printer still assumes that there is toner in the toner cartridge and continues printing, so it is impossible to remind the user to add toner in time, which affects the printing quality.

[0005] At the same time, since the developing roller, powder feeding roller and other parts of the toner cartridge are wearing parts, if the user can reset the detection wheel assembly after each use and adding powder, the user may not be able to judge whether the developing roller and other wearing parts are damaged and add powder multiple times. When the parts are damaged, the toner cartridge cannot be used normally. Since the toner has been added to the toner cartridge, this will cause a waste of energy, and directly discarding it will cause environmental pollution. Summary of the invention

[0006] A first object of the present invention is to provide a toner cartridge with a resettable detection wheel assembly and capable of ensuring printing quality.

[0007] A second object of the present invention is to provide a working method of the detection wheel assembly of the above-mentioned toner cartridge.

[0008] To achieve the first objective, the present invention provides a toner cartridge, comprising a cartridge body, a rotating member, a gear train and a rotating member, wherein the cartridge body has a toner storage portion, an end cap is provided at the end of the cartridge body, and the rotating member is rotatably supported in the toner storage portion; the gear train is provided on the outer wall of the cartridge body, the gear train is connected to the rotating member and drives the rotating member to rotate; the rotating member is rotatably installed in a storage space surrounded by the outer wall of the cartridge body and the end cap, the rotating member is provided with a clutch wheel, the clutch wheel comprises a small diameter portion and a large diameter portion arranged in the circumferential direction, the large diameter portion is in transmission cooperation with a gear in the gear train, the toner cartridge further comprises a reset portion and a stop portion, the reset portion forces the rotating member to rotate, and the stop portion limits the number of revolutions of the clutch wheel. The reset portion is located on the large diameter portion, the end cap is provided with an opening, and the reset portion is exposed outside the end cap through the opening.

[0009] It can be seen from the above scheme that after the toner cartridge is installed in the printer, the gear system drives the rotating member to rotate from the detection starting position to the detection ending position, completes the detection of the toner cartridge type and capacity, and then the printing work can be carried out. When the toner in the toner cartridge is used up, the user takes the toner cartridge out of the printer and applies a force to the reset part, the rotating member rotates to the detection starting position, resets the detection wheel assembly and then installs it into the printer, the printer drives the gear system and drives the rotating member to rotate from the detection starting position to the detection ending position, the printer recognizes that the toner cartridge is a new toner cartridge and starts normal printing, at this time, the stopper stops the rotating member from rotating to the detection starting position again. After the toner in the toner cartridge is used up again, it will not be reset again. The stopper limits the number of revolutions of the clutch wheel, so that the toner cartridge can be added with toner once more, and the printing quality can be effectively guaranteed at the same time. In addition, by directly setting the reset part on the large diameter part of the clutch wheel, the user manually pushes the clutch wheel to reset the detection wheel assembly, which reduces the number of parts, improves the assembly efficiency and reduces the production cost.

[0010] A preferred solution is that the toner cartridge also includes an annular rotation limit member, which is rotatably installed between the clutch wheel and the end cover, and the rotation limit member is coaxially arranged with the clutch wheel; a first boss and a second boss are respectively arranged on the opposite side surfaces of the rotation limit member, a first rotation groove is arranged on the clutch wheel, and a second rotation groove is arranged on the end cover, the first rotation groove and the second rotation groove are both coaxially arranged with the clutch wheel, the first boss is slidably matched with the first rotation groove, and the second boss is slidably matched with the second rotation groove; the stop portion includes a first stop wall and a second stop wall, the first stop wall is arranged in the first rotation groove and can be limited by the first boss, and the second stop wall is arranged in the second rotation groove and can be limited by the second boss.

[0011] It can be seen that by setting the first boss to cooperate with the first retaining wall in the first rotating groove on the clutch wheel and the second boss to cooperate with the second retaining wall in the second rotating groove on the end cover, it is ensured that the rotating member can be reset only once.

[0012] A further solution is that the first protrusion and the second protrusion are arranged at intervals in the circumferential direction of the rotation limiting member.

[0013] A further solution is that the end cover is provided with a positioning protrusion, the positioning protrusion protrudes from the inner surface of the end cover toward the box body, and the second rotation groove is located on the positioning protrusion; the clutch wheel is provided with a limit member installation groove, the first rotation groove is arranged on the inner wall of the limit member installation groove, the rotation limit member is located in the limit member installation groove, and the end of the positioning protrusion extends into the limit member installation groove and is adjacent to the rotation limit member.

[0014] It can be seen that the rotation limiting member is limited in the limiting member installation groove of the clutch wheel by the positioning protrusion, which ensures the stability of the installation of the rotation limiting member and prevents the rotation limiting member from falling off.

[0015] A preferred solution is that the rotating member is also provided with a rotating shaft, which is arranged on the first end face of the clutch wheel and coaxially with the clutch wheel; a limiting protrusion is arranged on the peripheral wall of the rotating shaft, and a matching stopper is arranged on the outer wall of the box body, and the matching stopper is located on the rotation path of the limiting protrusion, and the maximum distance between the limiting protrusion and the axis of the rotating shaft is slightly larger than the minimum distance between the matching stopper and the axis of the rotating shaft.

[0016] It can be seen that the limiting protrusion and the matching block have a slight interference fit when relative to each other, so that the user can clearly feel that the rotating part has been reset, thereby ensuring the accuracy of the reset.

[0017] A preferred solution is that the rotating member is also provided with a rotating shaft and an elastic buckle, and the rotating shaft is arranged on the first end face of the clutch wheel and is coaxially arranged with the clutch wheel; the fixed end of the elastic buckle is connected to the peripheral wall of the rotating shaft, and the outer wall of the box body is provided with a first protrusion and a second protrusion and a mounting column protruding outward from the end wall of the box body, and the first protrusion and the second protrusion are arranged at intervals along the rotation direction of the elastic buckle; the second protrusion is a broken line segment in a cross section perpendicular to the axial direction of the rotating member, the first protrusion is located above the second protrusion, the first protrusion and the second protrusion form a buckle accommodating groove, the mounting column is located in the middle of the buckle accommodating groove, and the rotating member is installed on the mounting column; the elastic buckle is located in the buckle accommodating groove, and the free end of the elastic buckle abuts against the inner wall of the buckle accommodating groove.

[0018] It can be seen that the elastic buckle is bent under force when it cooperates with the inner wall of the buckle accommodating groove. When the elastic buckle is rotated to the interval position between the first protrusion and the second protrusion, the elastic buckle is reset under the action of its own elastic restoring force. In this way, the user can clearly feel that the rotating part has been reset, thereby ensuring the accuracy of the reset.

[0019] A further solution is that the elastic buckle includes a connecting section and an abutment section set at an obtuse angle, the connecting section is connected to the rotating shaft and extends in a direction tangent to the outer circumferential surface of the rotating shaft, and the abutment section extends from one end of the connecting section away from the rotating shaft toward the opposite direction of rotation of the rotating part.

[0020] It can be seen from this that the elastic buckle is guaranteed to slide smoothly along the inner wall of the buckle accommodating groove.

[0021] A preferred solution is that the rotating member is provided with a clutch wheel and a cam which are coaxial and arranged in staggered phases, and the cam is located on the second end face of the clutch wheel away from the box body; the toner cartridge also includes a contact member, an elastic member and a reset member, and an inclined wall is provided at a position of the end cover opposite to the rotating member, the inclined wall is inclined relative to the axis of the rotating member, a second slide groove is provided on the inclined wall, the inclination of the second slide groove to the axis is equal to the inclination of the inclined wall to the axis, and the contact member is slidably matched with the second slide groove; the contact member has a contact end and a trigger end, the contact end contacts the cam, and the elastic member forces the contact member to abut against one end of the second slide groove close to the clutch wheel; the large diameter portion is provided with an elastic friction layer along the circumferential direction, the small diameter portion is clearance matched with the tooth top of a gear in the gear train, and the large diameter portion is interference matched with the tooth top of the gear.

[0022] It can be seen that the rotating member, the elastic member and the contact member together constitute the detection wheel assembly. When the detection wheel assembly is working, when the detection mechanism of the printer performs the detection of the toner cartridge, the rotating member starts to rotate from the initial position where the large diameter part and the gear are in interference fit, and drives the cam on the clutch wheel to rotate, and the cam drives the contact member to slide along the second slide groove. When the contact member moves to the position where the detection member in the printer contacts, the detection mechanism of the printer is triggered, and the toner cartridge is new and the capacity information of the toner cartridge is transmitted to the printer. When the contact member continues to move along the second slide groove, the contact end of the contact member is out of contact with the cam, and at the same time, the rotating member rotates to the position where the small diameter part and the gear are in clearance fit, the rotating member is no longer in contact with the gear, and the rotating member stops rotating. After the contact member is out of contact with the cam, the contact member returns to the initial position under the action of the restoring force of the elastic member.

[0023] After the toner cartridge is refilled with toner for the second time, the user applies force to the force-applying part, and the reset member drives the rotating member to continue to rotate forward along the rotation direction until the cam rotates to the initial position, completing the reset of the detection wheel assembly, and the toner cartridge can be detected by the detection mechanism of the printer again.

[0024] A further solution is that a shifting protrusion is also provided on the rotating member, which is arranged at the connecting position of the small diameter part and the large diameter part and is located on the second end face of the clutch wheel. In the rotation direction of the rotating member, the shifting protrusion is located on the upstream side of the small diameter part, and the shifting protrusion can engage with the gear.

[0025] It can be seen that by providing the toggle protrusion, it is possible to prevent the rotating part from slipping at the starting position of rotation and affecting the detection.

[0026] To achieve the above-mentioned second purpose, the present invention provides a working method of the detection wheel assembly of the above-mentioned toner cartridge, the detection wheel assembly includes a rotating part; the working method includes a primary detection step, a reset step and a secondary detection step; the primary detection step includes: the printer drives the rotating part to rotate from the detection starting position to the detection ending position; the reset step includes: applying a force to the reset part, and the rotating part rotates to the detection starting position; the secondary detection step includes: the printer drives the rotating part to rotate from the detection starting position to the detection ending position, and the stop part blocks the rotating part from rotating to the detection starting position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 1 is a structural diagram of a first embodiment of a toner cartridge of the present invention.

[0028] Figure 2 1 is a structural exploded view of the first embodiment of the toner cartridge of the present invention.

[0029] Figure 3 1 is a structural diagram of a rotating member in the first embodiment of a toner cartridge of the present invention.

[0030] Figure 4 It is a stereoscopic view of the reset member and the rotating member in the first embodiment of the toner cartridge of the present invention.

[0031] Figure 5 It is a rear view of the reset member and the rotating member in the first embodiment of the toner cartridge of the present invention.

[0032] Figure 6 1 is a structural diagram of a reset member in a first embodiment of a toner cartridge of the present invention.

[0033] Figure 7 It is a cross-sectional view along the length direction of the first embodiment of the toner cartridge of the present invention.

[0034] Figure 8 FIG. 4 is a cross-sectional view of the first embodiment of the toner cartridge of the present invention along the width direction.

[0035] Fig. 9 The figure is a positional relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching stopper when the first embodiment of the carbon powder cartridge of the present invention is tested in the factory.

[0036] Fig.10 It is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching block when detecting the starting position before the detection wheel assembly works for the first time in the first embodiment of the carbon powder cartridge of the present invention.

[0037] Fig.11It is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching block during the first working process of the detection wheel assembly in the first embodiment of the carbon powder cartridge of the present invention.

[0038] Fig.12 It is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching block when the detection wheel assembly of the first embodiment of the carbon powder cartridge of the present invention finishes working for the first time.

[0039] Fig.13 1 is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion and the matching block during the operation of the reset member in the first embodiment of the carbon powder cartridge of the present invention, wherein the dotted line in the figure is the initial position of the right end of the reset member.

[0040] Fig.14 It is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching block after the rotating member in the first embodiment of the carbon powder cartridge of the present invention is reset.

[0041] Fig.15 It is a position relationship diagram of the reset member, the force-bearing portion, the limiting protrusion, and the matching block when the detection wheel assembly of the first embodiment of the carbon powder cartridge of the present invention finishes working for the second time.

[0042] Fig.16 It is a structural diagram of the driving end behind the hidden end cover in the second embodiment of the carbon powder cartridge of the present invention.

[0043] Fig.17 2 is a cross-sectional view of a second embodiment of a toner cartridge of the present invention.

[0044] Fig.18 1 is a structural diagram of the gear, the rotating member and the reset member in the second embodiment of the carbon powder cartridge of the present invention.

[0045] Fig.19 1 is a structural diagram of a third embodiment of a toner cartridge of the present invention.

[0046] Fig. 20 1 is a structural exploded view of a third embodiment of a toner cartridge of the present invention.

[0047] Fig.21 It is a structural exploded view of the box body and the rotating part in the third embodiment of the toner cartridge of the present invention.

[0048] Fig. 22 1 is a diagram showing the positional relationship between the reset member and the end cover in the third embodiment of the carbon powder cartridge of the present invention.

[0049] Fig.23 1 is a structural diagram of a reset member in a third embodiment of a toner cartridge of the present invention.

[0050] Fig.24 1 is a positional relationship diagram of the driving gear, the reset member and the rotating member in the third embodiment of the toner cartridge of the present invention before factory inspection.

[0051] Fig.25 1 is a positional relationship diagram of the driving gear, the reset member and the rotating member when the rotating member rotates to the detection end position in the third embodiment of the toner cartridge of the present invention during the factory detection process.

[0052] Fig.26 This is a position relationship diagram of the driving gear, the reset member and the rotating member when a worker rotates the rotating member and moves the reset member to the first position after factory inspection in the third embodiment of the toner cartridge of the present invention, that is, the detection starting position of the detection wheel assembly when the user uses it.

[0053] Fig. 27 The diagram is a positional relationship diagram of a driving gear, a reset member and a rotating member when the detection wheel assembly of the third embodiment of the carbon powder cartridge of the present invention finishes working for the first time.

[0054] Fig.28 1 is a positional relationship diagram of the driving gear, the reset member and the rotating member after the rotating member is reset in the third embodiment of the toner cartridge of the present invention.

[0055] Fig.29 1 is a positional relationship diagram of the driving gear, the reset member and the rotating member when the detection wheel assembly of the third embodiment of the carbon powder cartridge of the present invention finishes working for the second time.

[0056] Fig.30 1 is a positional relationship diagram of the elastic buckle and the buckle accommodating groove in the third embodiment of the toner cartridge of the present invention when the rotating member is in the first position.

[0057] Fig.31 1 is a positional relationship diagram of the elastic buckle and the buckle accommodating groove in the third embodiment of the toner cartridge of the present invention when the rotating member is in the second position.

[0058] Fig.32 1 is a structural diagram of a fourth embodiment of a toner cartridge of the present invention.

[0059] Fig.33 1 is a structural exploded view of a fourth embodiment of a toner cartridge of the present invention.

[0060] Fig.34 It is a structural exploded view of the rotating member and the rotating limiting member in the fourth embodiment of the toner cartridge of the present invention.

[0061] Fig.35 It is a structural exploded view of the end cover, the rotating member and the rotating limit member in the fourth embodiment of the carbon powder cartridge of the present invention.

[0062] Fig.36 1 is a cross-sectional view showing the position of the rotating member in the fourth embodiment of the toner cartridge of the present invention.

[0063] Fig.37The present invention is a diagram showing the position relationship between the driving gear, the rotating member and the rotating limit member in the fourth embodiment of the carbon powder cartridge of the present invention when the carbon powder cartridge is at the detection starting position for the first detection operation.

[0064] Fig.38 is Fig.37 A diagram showing the positional relationship between the second protruding column of the rotation limiting member and the second rotating groove of the end cover in the state shown.

[0065] Fig.39 is Fig.37 The position relationship diagram of the first protrusion of the rotation limiter and the first rotation groove of the clutch wheel in the state shown.

[0066] Fig.40 is Fig.37 A view of the position of the elastic buckle in the buckle receiving groove in the shown state.

[0067] Fig.41 1 is a position relationship diagram of the driving gear, the rotating member and the rotating limit member in the fourth embodiment of the carbon powder cartridge of the present invention at the detection end position of the first detection work.

[0068] Fig.42 is Fig.41 A diagram showing the positional relationship between the second protruding column of the rotation limiting member and the second rotating groove of the end cover in the state shown.

[0069] Fig.43 is Fig.41 The position relationship diagram of the first protrusion of the rotation limiter and the first rotation groove of the clutch wheel in the state shown.

[0070] Fig.44 is Fig.41 A view of the position of the elastic buckle in the buckle receiving groove in the state shown.

[0071] Fig.45 It is a position relationship diagram of the driving gear, the rotating member and the rotating limit member at the detection starting position of the second detection work after the carbon powder cartridge of the fourth embodiment of the present invention is reset.

[0072] Fig.46 is Fig.45 A diagram showing the positional relationship between the second protruding column of the rotation limiting member and the second rotating groove of the end cover in the state shown.

[0073] Fig.47 is Fig.45 The position relationship diagram of the first protrusion of the rotation limiter and the first rotation groove of the clutch wheel in the state shown.

[0074] Fig.48 is Fig.45 A view of the position of the elastic buckle in the buckle receiving groove in the state shown.

[0075] Fig.49 The present invention is a diagram showing the position relationship among the driving gear, the rotating member and the rotating limit member in the fourth embodiment of the carbon powder cartridge of the present invention at the detection end position of the second detection operation.

[0076] Fig.50 is Fig.49 A diagram showing the positional relationship between the second protruding column of the rotation limiting member and the second rotating groove of the end cover in the state shown.

[0077] Fig.51 is Fig.49 The position relationship diagram of the first protrusion of the rotation limiter and the first rotation groove of the clutch wheel in the state shown.

[0078] Fig.52 is Fig.49 A view of the position of the elastic buckle in the buckle receiving groove in the state shown.

[0079] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0080] Toner cartridge first embodiment:

[0081] See also Figure 1 and Figure 2 The toner cartridge includes a cartridge body 1, a rotating member, a gear train 3, a rotating member 4, a contact member 5, an elastic member and a reset member 7. The rotating member includes a developing roller 21, a stirring frame 22 ( Figure 6 ) and a powder feeding roller (not shown).

[0082] The box body 1 has a toner containing part 10 for containing toner, and an end cover 11 is provided at the driving end of the box body 1. The toner containing part 10 has a powder outlet 101 for providing the contained toner to the outside. The developing roller 21, the powder feeding roller and the stirring frame 22 are all located in the toner containing part 10 and are rotatably supported on the two end walls of the box body 1, and the developing roller 21 is located at the powder outlet 101. The gear train 3 for driving the developing roller 21, the powder feeding roller and the stirring frame 22 to rotate is arranged in the accommodation space surrounded by the end wall of the box body 1 and the end cover 11. The outer wall of the end wall of the box body 1 is provided with a mounting column 15, and the rotating member 4 is rotatably mounted on the mounting column 15, and the rotating member 4 is arranged adjacent to a gear 31 in the gear train 3. In this embodiment, the gear 31 is a driving gear for driving the stirring frame 22 to rotate. In other embodiments, the rotating member 4 can also be arranged adjacent to any gear in the gear train 3. The driving force received by the driving head 32 is transmitted to each rotating member and the rotating member 4 through the gear train 3.

[0083] See also Figures 3 to 5The rotating member 4 is provided with a clutch wheel 41 , a cam 42 , a rotating shaft 44 and a shifting protrusion 45 , and the cam 42 is located on the second end surface 401 of the clutch wheel 41 away from the box body 1 .

[0084] The clutch wheel 41 includes a small diameter portion 403 and a large diameter portion 404 arranged along the circumferential direction, and the large diameter portion 404 is provided with an elastic friction layer 411 along the circumferential direction. When the large diameter portion 404 of the clutch wheel 41 faces the gear 31, the elastic friction layer 411 thereof and the gear 31 are interference fit, and the gear 31 drives the rotating member 4 to rotate through friction. When the small diameter portion 403 of the clutch wheel 41 faces the gear 31, the small diameter portion 403 and the gear 31 have a tooth top clearance fit, so that the rotating member 4 cannot be driven by the gear 31 and stops rotating. The elastic friction layer 411 in this embodiment is an elastic rubber ring made of rubber or other materials and wrapped outside the large diameter portion 404.

[0085] The cam 42 includes a protrusion 421 and a rotating shaft 422. The cam 42 and the clutch wheel 41 are coaxial and arranged in a staggered phase, that is, the rotating shaft 422 and the clutch wheel 41 are arranged coaxially, and the protrusion 421 of the cam 42 and the large diameter portion 404 of the clutch wheel 41 are not in the same position in the direction perpendicular to the axial direction. Figure 2 As shown, the contact member 5 has a contact end 51 and a trigger end 52 . The contact end 51 can contact the cam 42 , and the trigger end 52 is used to trigger the detection mechanism of the printer.

[0086] like Figure 1 and Figure 2 As shown, a planar inclined wall 111 is provided at a position opposite to the rotating member 4. The inclined wall 111 is inclined relative to the axis of the rotating member 4. A second slide groove 112 is provided on the inclined wall 111. The inclination of the second slide groove 112 to the axis is equal to the inclination of the inclined wall 111 to the axis. The contact member 5 is slidably matched with the second slide groove 112.

[0087] The elastic member is a torsion spring 6 , which is mounted on the inner wall of the end cover 11 facing the clutch wheel 41 . The torsion spring 6 forces the contact member 5 to abut against an end 1121 of the second slide slot 112 close to the clutch wheel 41 along the axial direction of the rotating member 4 .

[0088] The reset member 7 can be movably installed on the outer wall of the box body 1 and is located between the rotating member 4 and the box body 1. A first slide groove 75 is provided on the side of the reset member 7 facing the box body 1. A slide rail 12 is provided on the outer wall of the box body 1. The slide rail 12 slides in cooperation with the first slide groove 75. The extension direction of the slide rail 12 is perpendicular to the axial direction of the rotating member 4. An outwardly protruding arrow mark 113 is provided on the upper surface of the end cover 11 near the slide rail 12, so that the user can understand the pushing direction of the reset member 7.

[0089] See also Figures 6 to 8The reset member 7 includes a force-applying portion 71, a reset portion 72, a push portion 764, a first limit portion 77, and a second limit portion 78. The end cover 11 is provided with an opening, and the force-applying portion 71 is exposed outside the end cover 11 through the opening, which is convenient for manual operation by the user. The upper surface of the force-applying portion 71 is provided with an anti-slip protrusion 73 and a pull-button protrusion 74. In the sliding direction of the reset member 7, the pull-button protrusion 74 is provided on the upstream side of the reset member 7, such as Fig. 9 As shown, the highest point A1 of the buckle protrusion 74 is higher than the highest point A2 of the anti-slip protrusion 73 .

[0090] A receiving groove 76 is provided on the side of the reset member 7 facing the rotating member 4, and a force-bearing protrusion 43 is provided on the first end surface 402 of the rotating member 4 facing the box body 1. The force-bearing protrusion 43 is located on the first end surface 402 of the clutch wheel 41 close to the box body 1, and the force-bearing protrusion 43 protrudes outward from the first end surface 402 along the axial direction of the rotating member 4 and can enter the receiving groove 76 during the detection process. The receiving groove 76 is respectively provided with a first side wall 761 and a second side wall 762 on the opposite sides of the sliding direction X of the reset member 7, and the second side wall 762 is located on the downstream side of the first side wall 761.

[0091] The reset portion 72 is located on the side of the first side wall 761 of the receiving groove 76 facing the receiving groove 76, and the two side walls opposite to the force-bearing protrusion 43 are respectively provided with a force-bearing portion 431 and a stopper 432. When the force-bearing protrusion 43 is located in the receiving groove 76, the force-bearing portion 431 is opposite to the reset portion 72. When the reset member 72 pushes the rotating member 4 to reset, in the rotation direction R of the rotating member 4, the reset portion 72 abuts against the force-bearing portion 431 at the upstream side of the force-bearing protrusion 43. The bottom of the first side wall 761 is provided with an arc-shaped guide surface 763, which facilitates the force-bearing protrusion 43 to smoothly enter the receiving groove 76.

[0092] The first limiting portion 77 is located on a side of the first side wall 761 away from the receiving groove 76, the second limiting portion 78 is located on a side of the second side wall 762 facing the receiving groove 76, the stopper 432 is located on the side of the force-bearing protrusion 43 away from the force-bearing portion 431, and the first limiting portion 77, the second limiting portion 78 and the stopper 432 cooperate to limit the number of revolutions of the clutch wheel 41. The pushing portion 764 is located on a side of the second side wall 762 away from the receiving groove 76.

[0093] The rotating shaft 44 is arranged on the first end surface 402 of the clutch wheel 41 and is arranged coaxially with the clutch wheel 41. A limiting protrusion 441 is arranged on the peripheral wall of the rotating shaft 44, and a matching stopper 13 is arranged on the outer wall of the box body 1. The matching stopper 13 is located on the rotation path of the limiting protrusion 441. The maximum distance between the limiting protrusion 441 and the axis of the rotating shaft 44 is slightly greater than the minimum distance between the matching stopper 13 and the axis of the rotating shaft. In this way, when the limiting protrusion 441 and the matching stopper 13 are opposite to each other, the two are interference-fitted, so that the user can clearly perceive that the rotating member 4 has been reset to the initial position.

[0094] The shifting protrusion 45 is arranged at the connection position between the small diameter part 403 and the large diameter part 404 and is located on the second end surface 401 of the clutch wheel 41. In the rotation direction R of the rotating member 4, the shifting protrusion 45 is located on the upstream side of the small diameter part 403, and the shifting protrusion 45 can engage with the gear 31.

[0095] The contact end 51 of the contact member 5 extends to the second end face 401 of the clutch wheel 41, and the distance between the end face 4211 of the protrusion 421 on the cam 42 and the end 1122 of the second slide groove 112 away from the clutch wheel 41 in the axial direction of the rotating member 4 is greater than the distance between the contact end 51 and the end 1122 of the second slide groove 112 away from the clutch wheel 41 in the axial direction of the rotating member 4, so that it is convenient for the contact member 5 to disengage from the protrusion 421 after sliding a certain distance along the second slide groove 112.

[0096] The rotating member 4, the torsion spring 6 and the contact member 5 together constitute a detection wheel assembly. Fig. 9 As shown, when the toner cartridge is assembled and tested in the factory, the rotating member 4 is in a position where the small diameter portion 403 faces the gear 31. During the test, the rotating member 4 does not rotate. After the test is completed, the worker pushes the reset member 7 along the X direction, and the push portion 764 pushes the force-bearing protrusion 43 to force the rotating member 4 to rotate along the R direction to Fig.10 In the position shown, since the limiting protrusion 441 and the matching stopper 13 are in interference fit when they are opposite to each other, the worker can clearly feel that the rotating member 4 has been pushed to the detection starting position, and at this time, the large diameter component 404 and the gear 31 are in interference fit. Then, it can be packaged and sold.

[0097] When the user installs the toner cartridge into the printer and the detection wheel assembly works, Figure 2 , Figures 10 to 12 When the printer's detection mechanism performs detection on the toner cartridge, the rotating member 4 moves from the initial detection starting position ( Fig. 9The contact member 5 starts to rotate from the position shown in the figure, and drives the cam 42 on the clutch wheel 41 to rotate. The protrusion 421 of the cam 42 drives the contact member 5 to slide along the second slide groove 112. When the contact member 5 moves to the position where the detection member in the printer contacts, the detection mechanism of the printer is triggered, and the toner cartridge is new and the capacity information of the toner cartridge is transmitted to the printer. When the contact member 5 continues to move along the second slide groove 112, the contact end 51 of the contact member 5 is out of contact with the cam 42, and at the same time, the rotating member 4 rotates to the position where the small diameter portion 403 and the gear 31 are in clearance fit, the rotating member 4 is no longer in contact with the gear 31, and the rotating member 4 stops rotating. After the contact member 5 is out of contact with the cam 42, the contact member 5 returns to the initial position under the action of the restoring force of the torsion spring 6. At the same time, the force-bearing protrusion 43 rotates with the rotating member 4 and enters the accommodating groove 76.

[0098] When the toner in the toner cartridge is used up, the user refills the toner cartridge. Fig.13 and 14 As shown, the user applies a force F to the force-applying portion 71 of the reset member 7, forcing the reset portion 72 to push the force-bearing protrusion 43 and drive the rotating member 4 to continue to rotate forward along the rotation direction R until the limiting protrusion 441 of the cam 42 passes over the matching stopper 13. The user can clearly feel that the reset is completed. At this time, Fig.14 As shown, the rotating member 4 rotates to the initial detection position, completing the resetting of the detection wheel assembly, and the toner cartridge can be detected by the detection mechanism of the printer again.

[0099] After the user installs the toner cartridge into the printer again, the detection wheel assembly of the toner cartridge completes the triggering of the detection mechanism of the printer and then the rotating part rotates to Fig.15 At this time, the first limiting portion 77 is limited and blocked on the downstream side of the rotation path of the force-bearing protrusion 43, so the rotating member 4 cannot be reset again. Fig.14 The detection initial position shown is also the reset end position. Due to the cooperation and blocking between the first limit portion 78 and the stop portion 432 of the force-bearing protrusion 43, the user cannot push the reset member in the reverse direction of the X direction to reset to Fig.10 The position shown. Therefore, the user can only reset the detection wheel assembly once. Compared with the prior art, the printing quality is effectively guaranteed by resetting it a limited number of times. In addition, since the toner cartridge of the present invention needs to be manually reset, when the toner cartridge is taken out of the printer and then put back into the printer due to a paper jam or other fault, the detection wheel assembly is not reset, and the printer recognizes that the toner cartridge is an old cartridge, and continues counting from the previous one. In this way, the printer can accurately remind the user whether there is toner in the toner cartridge, thereby effectively ensuring the printing quality.

[0100] Toner cartridge second embodiment:

[0101] As an explanation of the second embodiment of the toner cartridge of the present invention, only the differences from the first embodiment of the toner cartridge described above are explained below.

[0102] See also Figures 16 to 18 The reset member 27 includes a force-applying portion 271 , a reset portion 272 and a hinge portion 273 . The hinge portion 273 is located between the force-applying portion 271 and the reset portion 272 . The reset member 27 is hinged to the outer wall of the end wall of the box body 210 through the hinge portion 273 .

[0103] The reset member 27 further includes a hook 275, which is connected to one end near the force-applying portion 271. The outer wall of the end wall of the box body 210 is further provided with a locking protrusion 216 as a stopper, which protrudes outward from the outer wall of the box body 210, and the hook 275 can be limitedly matched with the locking protrusion 216. The hinge portion 273 and the locking protrusion 216 are respectively located on opposite sides of the hook 275. The hook 275 is provided with a guide surface 2751, which guides the locking protrusion 216 to slide into the hook 275.

[0104] When the detection wheel assembly is working, the force-bearing portion 243 on the rotating member 240 rotates counterclockwise and pushes the reset portion 272, and the reset portion 272 rotates clockwise around the hinge portion 273 to avoid and reset. In addition, after the second powder addition, the user presses the force-applying portion 271, the reset member 27 rotates clockwise around the hinge portion 273, and the reset portion 272 pushes the force-bearing portion 243 of the rotating member 240 upward, forcing the rotating member 240 to rotate to the initial detection position, completing the reset of the detection wheel assembly. At the same time, the guide surface 2751 guides the engaging protrusion 216 to slide into the hook 275 to limit the reset member 27, ensuring that the user can only reset the detection wheel assembly once.

[0105] Toner cartridge third embodiment:

[0106] As an explanation of the third embodiment of the toner cartridge of the present invention, only the differences from the first embodiment of the toner cartridge described above will be explained below.

[0107] See also Figures 19 to 23 In this embodiment, the detection wheel assembly includes a rotating member 340, and the reset member 37 includes a force-applying portion 371, a reset portion 372, and a hinge portion 373. The hinge portion 373 is located between the force-applying portion 371 and the reset portion 372. The reset member 37 is hinged to the inner wall of the end cover 311 through the hinge portion 373. The end cover 311 is provided with a first opening 3111 and a second opening 3112. The force-applying portion 371 extends out from the first opening 3111. The large diameter portion 3404 of the rotating member 340 can be exposed from the second opening 3112. The detection mechanism of the printer is located below the second opening 3112. The large diameter portion 3404 can trigger the detection mechanism of the printer.

[0108] The force-bearing portion 343 is arranged on the second end surface 3401 of the clutch wheel 341 away from the box body 310. The force-bearing portion 343 has a circular arc portion 3431 and a first tooth portion 3432 arranged in the circumferential direction. The circular arc portion 3431 and the first tooth portion 3432 are both coaxially arranged with the clutch wheel 341. The first tooth portion 3432 and the circular arc portion 3431 are connected end to end. The diameter of the tooth top circle of the first tooth portion 3432 is greater than the outer diameter of the circular arc portion 3431. The first tooth portion 3432 includes four teeth. The reset portion 372 has a second tooth portion 3721. The second tooth portion 3721 includes five teeth. The second tooth portion 3721 is coaxially arranged with the hinge portion 373. The second tooth portion 3721 can mesh with the first tooth portion 3432, thereby driving the rotating member 340 to rotate.

[0109] The limiting portion 377 is located on one side of the hinge portion 373 close to the force-applying portion 371, and the limiting portion 377 has a sliding matching wall 3771 and a limiting wall 3772 that are intersectingly arranged. The stopper 4320 is located on the end cover 311, and the stopper 4320 includes two limiting teeth 4321, which are arranged along the rotation path of the limiting portion 377, and each limiting tooth 4321 has a guide wall 4323 and a stopper wall 4324 that are intersectingly arranged. On the rotation path of the limiting portion 377, the guide wall 4323 is located on the upstream side of the stopper wall 4324. The sliding matching wall 3771 is slidably matched with the guide wall 4323, and the limiting wall 3772 is limitedly matched with the stopper wall 4324. The restriction of the limiting teeth 4321 ensures that the reset member 37 can only rotate in one direction along the direction of the arrow R1.

[0110] The rotating member 340 is further provided with a rotating shaft 344 and an elastic buckle 345. The rotating shaft 344 is arranged on the first end surface of the clutch wheel 341 and is arranged coaxially with the clutch wheel 341. The fixed end 3451 of the elastic buckle 345 is connected to the peripheral wall of the rotating shaft 344. The elastic buckle 345 includes a connecting section 3453 and an abutting section 3454 arranged at an obtuse angle. The connecting section 3453 is connected to the peripheral wall of the rotating shaft 344 and extends in a direction tangential to the outer peripheral surface of the rotating shaft 344. The abutting section 3454 extends from one end of the connecting section 3453 away from the rotating shaft 344 toward the opposite direction of the rotating direction of the rotating member 340.

[0111] The outer wall of the box body 310 is provided with a first protrusion 312 and a second protrusion 313 protruding outward from the end wall of the box body 310 and a mounting post 314. The first protrusion 312 and the second protrusion 313 are arranged at intervals along the rotation direction of the elastic buckle 345. The second protrusion 313 is a broken line segment in a cross section perpendicular to the axial direction of the rotating member 340. The first protrusion 312 is located above the second protrusion 313. The first protrusion 312 and the second protrusion 313 surround a buckle receiving groove 315. The mounting post 314 is located in the middle of the buckle receiving groove 315. The rotating member 340 is mounted on the mounting post 314. The elastic buckle 345 is located in the buckle receiving groove 315, and the free end 3452 of the elastic buckle 345 abuts against the inner wall of the buckle receiving groove 315.

[0112] When the toner cartridge in this embodiment is assembled and tested in the factory, Fig.24 As shown, the rotating member 340 is in a position where the large diameter portion 3404 and the gear 331 are in interference fit. During the test, the rotating member 340 is Fig.24 Rotate the position shown to Fig.25 After the test is completed, the worker manually pushes the rotating member 340 in the direction indicated by arrow R2 to Fig.26 Then, the force-applying portion 371 of the reset member 37 is moved in the direction of arrow R1, and the second tooth portion 3721 of the reset member 37 rotates to a position adjacent to the first tooth portion 3432 in the circumferential direction, that is, from Fig.26 The position of the reset member 37 shown by the solid line is rotated to the position of the reset member 37 shown by the dotted line. Then, it can be packaged and sold.

[0113] When the user installs the toner cartridge into the printer, the rotating member 340 is in an interference fit position between the initial large diameter portion 3404 and the gear 331 when the detection wheel assembly is working. Fig.26 The position shown in the figure) is rotated to a position where the small diameter portion 3403 and the gear 331 are in clearance fit ( Fig. 27 The rotating member 340 is no longer in contact with the gear 331, and the rotating member 340 stops rotating. During the rotation process, the large diameter portion 3404 of the rotating member 340 intermittently presses the detection mechanism in the printer to complete the triggering of the detection mechanism of the printer.

[0114] When the toner in the toner cartridge is used up, the user refills the toner cartridge. Fig. 27 and Fig.28 As shown, the user applies a force to the reset member 37, and the reset member 37 rotates around the hinge portion 373. At this time, the second tooth portion 3721 of the reset member 37 meshes with the first tooth portion 3432 and drives the rotating member 340 to rotate forward along the rotation direction R2 to Fig.28 The detection initial position shown in the figure completes the reset of the rotating member 340. In this process, the elastic buckle 345 is moved from Fig.30 Rotate the position shown to Fig.31 In the position shown, when the free end 3452 of the elastic clip 345 is disengaged from the first protrusion 312 and the second protrusion 313 toward the inner wall of the clip receiving groove 315, the elastic clip 345 will be reset under the action of its own elastic restoring force, so that the user can clearly feel that the reset is complete.

[0115] After the user installs the toner cartridge into the printer again, the detection wheel assembly of the toner cartridge completes the triggering of the detection mechanism of the printer and then the rotating member 340 rotates to Fig.29 In the position shown, at this time, the second tooth portion 3721 of the reset member 37 rotates to the downstream side of the rotation path of the first tooth portion 3432, and due to the limiting cooperation between the limiting portion 377 of the reset member 37 and the limiting tooth 4321, the reset member 37 cannot rotate in the opposite direction of the arrow R1, so the user cannot reset the detection wheel assembly again.

[0116] In addition, in this embodiment, after the factory completes the test, the worker can also remove the end cover and reset the driving gear, the reset member and the rotating member to the original position. Fig.24 The position shown in FIG. 1 is a schematic diagram of a structure in which the user can reset the detection wheel assembly twice. However, the two reset methods of the structure are different.

[0117] Toner cartridge fourth embodiment:

[0118] As an explanation of the fourth embodiment of the toner cartridge of the present invention, only the differences from the third embodiment of the toner cartridge described above will be explained below.

[0119] See also Figure 32 to Figure 36 In this embodiment, the toner cartridge is not provided with a separate reset member, and the reset portion 472 of the detection wheel assembly is located on the large diameter portion 4404 of the rotating member 440, and the reset portion 472 can be exposed outside the end cover 4110 through the second opening 41101. An outwardly protruding arrow mark 413 is provided on the outward end surface of the large diameter portion 4404, so that the user can understand the direction of pushing the rotating member 440 when resetting.

[0120] The detection wheel assembly includes a rotating member 440 and an annular rotation limiter 8, the rotation limiter 8 is rotatably mounted between the clutch wheel 4410 and the end cover 4110, and the rotation limiter 8 is coaxially arranged with the clutch wheel 4410. The first convex column 81 and the second convex column 82 are respectively arranged on the opposite side surfaces of the rotation limiter 8, and the first convex column 81 and the second convex column 82 are arranged at intervals in the circumferential direction of the rotation limiter 8. The clutch wheel 4410 is provided with an annular first rotation groove 4411, and the end cover 4110 is provided with an annular second rotation groove 4111, and the first rotation groove 4411 and the second rotation groove 4111 are both coaxially arranged with the clutch wheel 4410, the first convex column 81 is slidably matched with the first rotation groove 4411, and the second convex column 82 is slidably matched with the second rotation groove 4111. The stopper includes a first stopper wall 83 and a second stopper wall 84 . The first stopper wall 83 is disposed in the first rotation groove 4411 and can cooperate with the first boss 81 in a limiting manner. The second stopper wall 84 is disposed in the second rotation groove 4111 and can cooperate with the second boss 82 in a limiting manner.

[0121] The end cover 4110 is provided with a positioning protrusion 4112, which protrudes from the inner surface of the end cover 4110 toward the box body 410, and the second rotation groove 4111 is located on the positioning protrusion 4112. The clutch wheel 4410 is provided with a limit member installation groove 4413, the first rotation groove 4411 is arranged on the inner wall of the limit member installation groove 4413, the rotation limit member 8 is located in the limit member installation groove 4413, and the end of the positioning protrusion 4112 extends into the limit member installation groove 4413 and is adjacent to the rotation limit member 8. The setting of the elastic buckle 345 structure is convenient for forming elastic contact with the inner wall of the buckle accommodating groove 415 on the one hand, and can prevent the user from rotating the rotating member 440 in the reverse direction on the other hand.

[0122] Figures 37 to 40 This is a diagram showing the positional relationship of the various components of the toner cartridge before the detection wheel assembly works. Figure 41 to Figure 44 This is a diagram showing the positional relationship of the components of the toner cartridge when the first inspection of the inspection wheel assembly is completed. Figures 45 to 48 This is a diagram showing the positional relationship of the various components of the toner cartridge after it has been reset. Figures 49 to 52 This is a diagram showing the positional relationship of the various components of the toner cartridge at the end of the second inspection.

[0123] The user installs the toner cartridge into the printer, and the detection wheel assembly starts to work. Fig.37 The initial large diameter portion 4404 is rotated to the position where the interference fit between the gear 4310 is shown. Fig.41 The small diameter portion 4403 shown in the figure is in a position where the gear 4310 is in a clearance fit. Figures 37 to 39As shown, the first protruding column 81 is located on the upstream side of the first retaining wall 83 and is close to the first retaining wall 83. At this time, when the gear 4310 drives the rotating member 440 to rotate, the rotation limiting member 8 may not rotate, may rotate together with the rotating member 440, or may rotate sometimes and not rotate sometimes. In this embodiment, the rotation limiting member 8 rotates with the rotating member 440 as an example. When the rotating member 440 and the rotation limiting member 8 rotate together around the central axis of the mounting column 414, the second protruding column 82 rotates along the second rotating groove 4111. When the detection is finished, as shown in FIG. Figures 41 to 43 As shown, the first protrusion 81 is still located on the upstream side of the first baffle wall 83 and close to the first baffle wall 83 , while the second protrusion 82 rotates to a position close to the second baffle wall 84 . At this time, the second baffle wall 84 is located on the downstream side of the second protrusion 82 .

[0124] When the toner in the toner cartridge is used up, the user adds toner to the toner cartridge. The user applies a force to the reset portion 472 to push the rotating member 440 in the direction of the arrow mark 413. The rotating member 440 moves from Fig.41 The detection end position shown is reset to Fig.45 The detection starting position shown, the elastic buckle 445 is Fig.44 Rotate the position shown to Fig.48 During the resetting process, when the rotating member 440 is pushed to continue rotating in the direction of arrow R3, when the second boss 82 rotates to the position where it contacts the second retaining wall 84, the second boss 82 cannot rotate along the second rotating groove 4111 due to the restriction of the second retaining wall 84, that is, the rotation stopper 8 is fixed relative to the end cover 4110. When the rotating member 440 continues to rotate forward, the first retaining wall 83 starts to move away from the first boss 81 until it rotates to the position where the second boss 82 contacts the second retaining wall 84. Fig.47 The reset is complete.

[0125] After the user installs the toner cartridge into the printer again, the detection wheel assembly of the toner cartridge completes the triggering of the detection mechanism of the printer and the rotating member 440 rotates to Fig.49 In the position shown, at this time, in the direction of rotation, the first protrusion 81 limits the first baffle wall 83 on the downstream side of the first baffle wall 83, and the rotating member 440, the rotating limiting member 8 and the end cover 4110 form a limiting fit, so the user cannot reset the detection wheel assembly again.

[0126] 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. Toner cartridge, including: A box body, wherein the box body has a carbon powder containing portion, and an end cover is provided at the end of the box body; a rotating member rotatably supported in the toner containing portion; a gear train, the gear train being arranged on the outer wall of the box body, the gear train being connected to the rotating member and driving the rotating member to rotate; A rotating member, the rotating member is rotatably mounted in a containing space enclosed by the outer wall of the box body and the end cover, the rotating member is provided with a clutch wheel, the clutch wheel comprises a small diameter portion and a large diameter portion arranged along the circumferential direction, the large diameter portion is in transmission cooperation with a gear in the gear train; Features: The toner cartridge further comprises a reset portion and a stop portion, wherein the reset portion forces the rotating member to rotate, and the stop portion limits the number of revolutions of the clutch wheel; The reset portion is located on the large diameter portion, the end cover is provided with an opening, and the reset portion is exposed outside the end cover through the opening.

2. The toner cartridge according to claim 1, characterized in that: The toner cartridge further comprises a circular ring-shaped rotation limiting member, the rotation limiting member is rotatably mounted between the clutch wheel and the end cover, and the rotation limiting member and the clutch wheel are coaxially arranged; The first and second bosses are respectively arranged on opposite side surfaces of the rotation limiter, the first rotation groove is arranged on the clutch wheel, and the second rotation groove is arranged on the end cover, the first rotation groove and the second rotation groove are both arranged coaxially with the clutch wheel, the first boss is slidably matched with the first rotation groove, and the second boss is slidably matched with the second rotation groove; The stop portion includes a first stop wall and a second stop wall. The first stop wall is arranged in the first rotation groove and can be limitedly matched with the first boss. The second stop wall is arranged in the second rotation groove and can be limitedly matched with the second boss.

3. The toner cartridge according to claim 2, characterized in that: The first protrusion and the second protrusion are arranged at intervals in the circumferential direction of the rotation limiting member.

4. The toner cartridge according to claim 2, characterized in that: The end cover is provided with a positioning protrusion, the positioning protrusion protrudes from the inner surface of the end cover toward the box body, and the second rotation groove is located on the positioning protrusion; The clutch wheel is provided with a limit member installation groove, the first rotation groove is provided on the inner wall of the limit member installation groove, the rotation limit member is located in the limit member installation groove, and the end of the positioning protrusion extends into the limit member installation groove and is adjacent to the rotation limit member.

5. The toner cartridge according to any one of claims 1 to 4, characterized in that: The rotating member is further provided with a rotating shaft, which is arranged on the first end surface of the clutch wheel and is coaxially arranged with the clutch wheel; A limiting protrusion is arranged on the peripheral wall of the rotating shaft, and a matching stopper is arranged on the outer wall of the box body. The matching stopper is located on the rotation path of the limiting protrusion, and the maximum distance between the limiting protrusion and the axis of the rotating shaft is slightly larger than the minimum distance between the matching stopper and the axis of the rotating shaft.

6. The toner cartridge according to any one of claims 1 to 4, characterized in that: The rotating member is further provided with a rotating shaft and an elastic buckle, wherein the rotating shaft is arranged on the first end surface of the clutch wheel and is coaxially arranged with the clutch wheel; The fixed end of the elastic buckle is connected to the peripheral wall of the rotating shaft, and the outer wall of the box body is provided with a first protrusion and a second protrusion and a mounting column protruding outward from the end wall of the box body, and the first protrusion and the second protrusion are arranged at intervals along the rotating direction of the elastic buckle; The second protrusion is a broken line segment in a cross section perpendicular to the axial direction of the rotating member, the first protrusion is located above the second protrusion, the first protrusion and the second protrusion form a buckle receiving groove, the mounting post is located in the middle of the buckle receiving groove, and the rotating member is mounted on the mounting post; The elastic buckle is located in the buckle accommodating groove, and the free end of the elastic buckle abuts against the inner wall of the buckle accommodating groove.

7. The toner cartridge according to claim 6, characterized in that: The elastic buckle includes a connecting section and an abutting section set at an obtuse angle, the connecting section is connected to the rotating shaft and extends in a direction tangent to the outer circumferential surface of the rotating shaft, and the abutting section extends from one end of the connecting section away from the rotating shaft toward the opposite direction of the rotation direction of the rotating member.

8. The toner cartridge according to any one of claims 1 to 4, characterized in that: The rotating member is provided with a clutch wheel and a cam which are coaxial and arranged in a staggered phase, and the cam is located on the second end surface of the clutch wheel away from the box body; The toner cartridge further comprises a contact member, an elastic member and a reset member, an inclined wall is arranged at a position of the end cover opposite to the rotating member, the inclined wall is arranged inclined relative to the axis of the rotating member, a second slide groove is arranged on the inclined wall, the inclination of the second slide groove with the axis is equal to the inclination of the inclined wall with the axis, and the contact member is slidably matched with the second slide groove; The contact member has a contact end and a trigger end, the contact end contacts the cam, and the elastic member forces the contact member to abut against one end of the second slide slot close to the clutch wheel; The large diameter portion is provided with an elastic friction layer along the circumferential direction, the small diameter portion is clearance-matched with the tooth top of a gear in the gear train, and the large diameter portion is interference-matched with the tooth top of the gear.

9. The toner cartridge according to claim 8, characterized in that: The rotating member is also provided with a shifting protrusion, which is arranged at the connecting position between the small diameter portion and the large diameter portion and is located on the second end face of the clutch wheel. In the rotation direction of the rotating member, the shifting protrusion is located on the upstream side of the small diameter portion, and the shifting protrusion can engage with the gear.

10. A working method of a detection wheel assembly in a toner cartridge, characterized in that: The toner cartridge is a toner cartridge as claimed in any one of claims 1 to 9, wherein the detection wheel assembly comprises the rotating member; The working method comprises a primary detection step, a reset step and a secondary detection step; The one-time detection step includes: the printer drives the rotating member to rotate from the detection starting position to the detection ending position; The resetting step includes: applying a force to the resetting portion, and rotating the rotating member to the detection starting position; The secondary detection step includes: the printer drives the rotating member to rotate from the detection starting position to the detection ending position, and the stopper blocks the rotating member from rotating to the detection starting position.

Images