Toner cartridge detection device and toner cartridge

Abstract

The present invention discloses and provides a toner cartridge detection device and toner cartridge with low precision requirements, which is conducive to reducing the production of defective products and eliminating the defective products caused by hand contact. The toner cartridge includes a toner cartridge body and a toner cartridge detection device, and the toner cartridge detection device includes a counting wheel, a counting wheel rubber band, a transmission gear, a transmission tooth rubber band and an end cover, the end cover is arranged on the outside of the toner cartridge body and covers the transmission gear and the counting wheel, the counting wheel rubber band is wrapped and arranged on the outside of the counting wheel, the transmission tooth rubber band is wrapped and arranged on the transmission gear at a position staggered with the teeth, the transmission tooth rubber band contacts the counting wheel rubber band, the outer end surface of the counting wheel is provided with a ramp protrusion, and the end cover is provided with a stopper matched with the ramp protrusion. The present invention can be widely used in the field of laser printing toner cartridges.

Description

Technical Field

[0001] The invention relates to a carbon powder box detection device and a carbon powder box. Background Art

[0002] The laser printer is equipped with a developing device for developing the electrostatic latent image formed on the toner cartridge. The developing device absorbs the toner on the latent image on the surface of the toner cartridge to become a visible toner image, which is then transferred to the paper under the action of the electric field of the transfer electrode. The text and image are then melted on the paper by high-temperature fixing. The toner transferred to the paper is generally provided by the toner cartridge. When the toner in the toner cartridge is consumed, a new toner cartridge is replaced. When replacing a new toner cartridge, it is necessary to detect a brand new toner cartridge. The common recognition and counting detection method of laser printers is to use the counting gear to cooperate with the sensor in the printing device to detect whether the newly installed toner cartridge is new. If the counting gear does not match the consumables, the machine cannot recognize the machine and work. Therefore, in order to enable the product to recognize and use the machine normally, the key is to reset the toner cartridge, reinstall it into the machine after clearing it, and recognize and count it normally if the machine tests that it is a brand new toner cartridge.

[0003] The counting gear transmission structure of the existing Brother series TN1000 detection device mainly includes an end cover, a counting gear, a transmission gear, a stirring frame gear, a driving gear, a powder feeding roller gear, and a developing roller gear. It mainly drives the developing roller, the powder feeding roller and the stirring frame of the toner cartridge to perform corresponding work after the printing driving force, and the counting gear is used to identify whether the toner cartridge has been used and counted. The counting gear is provided with 16 small teeth and a limit buckle. The counting gear is installed on the column of the toner cartridge body. Before the toner cartridge is installed in the printer, the developing roller is manually reversed in advance to make the two small teeth of the counting gear mesh with the transmission gear. After the toner cartridge is installed in the machine, the counting gear is pressed against the sensor of the printer. At this time, the transmission gear meshes and drives the counting gear to rotate to about 210 degrees and disengage. The counting gear rotates in the original rotation direction by inertia. After rotating to a certain angle, it presses against the sensor and interlocks with the card slot provided on the toner cartridge body, so that the printer detects that the toner cartridge is a brand new powder cartridge.

[0004] In order to ensure that the machine can recognize and count normally, the detection device needs to make the counting gear mesh with the transmission gear by two teeth. The developing roller is reversed by hand. In addition to the cumbersome process, it is also easy to cause the developing roller to be stuck with impurities or foreign matter. In addition, the measurement of the reversing process cannot be controlled. At the same time, the counting gear and the transmission gear often separate due to vibrations during handling or transportation, which will cause the machine to not recognize the machine. In addition, the counting gear and the transmission gear are driven by tooth meshing, which requires very high manufacturing and installation precision, resulting in high costs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a toner cartridge detection device and toner cartridge which have low precision requirements, are conducive to reducing the production of defective products, and eliminate the defective developing roller caused by hand contact.

[0006] The technical solution adopted by a toner cartridge detection device of the present invention is: the toner cartridge detection device includes a counting wheel, a counting wheel rubber band, a transmission gear, a transmission tooth rubber band and an end cover, the transmission gear and the counting wheel are arranged on the toner cartridge body, the end cover is arranged on the outside of the toner cartridge body and covers the transmission gear and the counting wheel, the counting wheel rubber band is wrapped and arranged on the outside of the counting wheel, the transmission tooth rubber band is wrapped and arranged on the transmission gear at a position staggered with the teeth, the transmission tooth rubber band is in contact with the counting wheel rubber band, the outer end surface of the counting wheel is provided with a ramp protrusion, the end cover is provided with a stopper adapted to the ramp protrusion, the stopper can block the ramp protrusion before an external force acts, and the ramp protrusion is allowed to pass over the stopper under the action of the external force.

[0007] The cross-sectional shape of the counting wheel is fan-shaped, the angle of the fan-shaped is 210 degrees, and the rubber band of the counting wheel is adapted to the cross-sectional shape of the counting wheel.

[0008] The counting wheel is sleeved on the guide post of the carbon powder box body.

[0009] The top surface of the ramp protrusion facing the end cover is an inclined surface, the inclination direction of the inclined surface is consistent with the movement direction of the counting wheel, and the inclination angle of the inclined surface is 8-15 degrees.

[0010] The high point of the inclined surface is away from the moving direction of the counting wheel.

[0011] The high point of the inclined surface adopts an arc transition.

[0012] The technical solution adopted by a toner cartridge of the present invention is: the toner cartridge also includes the toner cartridge body, a stirring frame, a developing roller and a powder feeding roller arranged in the toner cartridge body, the stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body, and are rotated by a gear transmission mechanism, the gear transmission mechanism includes a driving gear, a stirring frame gear meshing with the driving gear, a powder feeding roller gear, a developing roller gear and the transmission gear and the counting wheel, the driving gear rotation torque is transmitted to the transmission gear, and the counting wheel is driven to rotate through the transmission tooth rubber band on the transmission gear to match the sensor of the printer, so that the printer can recognize it as a brand new toner cartridge.

[0013] The stirring frame gear is sleeved on the extension shaft of the stirring frame, the powder feeding roller gear is sleeved on the extension shaft of the powder feeding roller, and the developing roller gear is sleeved on the extension shaft of the developing roller.

[0014] The driving gear is respectively meshed with the stirring frame gear, the powder feeding roller gear and the developing roller gear, and the powder feeding roller gear is meshed with the transmission gear.

[0015] The beneficial effects of the present invention are as follows: since the carbon powder cartridge detection device of the present invention includes a counting wheel, a counting wheel rubber band, a transmission gear, a transmission tooth rubber band and an end cover, the transmission gear and the counting wheel are arranged on the carbon powder cartridge body, the end cover is arranged on the outside of the carbon powder cartridge body and covers the transmission gear and the counting wheel, the counting wheel rubber band is wrapped and arranged on the outside of the counting wheel, the transmission tooth rubber band is wrapped and arranged on the transmission gear at a position staggered with the teeth, the transmission tooth rubber band is in contact with the counting wheel rubber band, the outer end surface of the counting wheel is provided with a ramp protrusion, the end cover is provided with a block adapted to the ramp protrusion, and the block and the ramp protrusion ensure that the recognition machine stops at the correct position when rotating. In terms of position, to be precise, the block can block the ramp protrusion before the external force acts, and the ramp protrusion passes over the block under the action of the external force. Compared with the prior art, the detection device of the present invention adopts belt transmission, and the tooth meshing transmission accuracy requirement is low compared with the original structure, which is conducive to reducing the production of defective products. At the same time, the block matches the ramp protrusion, and when the counting wheel is pushed to the reset state by hand, it contacts the transmission gear. The bulge can limit the separation of the counting wheel, and at the same time, the defect of the developing roller caused by the contact of the hand and the problem of the counting wheel being separated and not recognized by the machine are eliminated, thereby ensuring the manufacturing quality of the product. Therefore, the present invention has low accuracy requirements, which is conducive to reducing the production of defective products and eliminating the defect of the developing roller caused by the contact of the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the carbon powder cartridge of the present invention;

[0017] Figure 2 is an exploded view of the toner cartridge of the present invention;

[0018] Figure 3 is an exploded view of the toner cartridge detection device of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the counting wheel of the present invention before it is reset;

[0020] Figure 5 It is a schematic diagram of the structure after the counting wheel of the present invention is reset;

[0021] Figure 6It is a three-dimensional structural schematic diagram of the counting wheel of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the toner cartridge of the present invention mainly includes a toner cartridge body 100, a stirring frame, a developing roller and a powder feeding roller (other charging rollers, powder discharging scrapers, etc. are prior art and are not described here), a gear transmission mechanism arranged on the side wall of the toner cartridge body 100, and an end cover 5 arranged on the side of the toner cartridge body 100 and matched with the gear transmission mechanism. The stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body 100 and are rotated by the gear transmission mechanism. The gear transmission mechanism includes a driving gear 6, a stirring frame gear 7 meshing with the driving gear 6, a powder feeding roller gear 8, a developing roller gear 9 and the transmission gear 3 and the counting wheel 1. The rotational torque of the driving gear 6 is transmitted to the transmission gear 3, and the rotation of the counting wheel 1 is driven by the transmission tooth rubber band 4 on the transmission gear 3 to match the sensor of the printer, so that the printer can recognize it as a new toner cartridge.

[0023] Specifically, the stirring frame gear 7 is sleeved on the extension shaft of the stirring frame, the powder feeding roller gear 8 is sleeved on the extension shaft of the powder feeding roller, and the developing roller gear 9 is sleeved on the extension shaft of the developing roller. The driving gear 6 is respectively meshed with the stirring frame gear 7, the powder feeding roller gear 8, and the developing roller gear 9, and the powder feeding roller gear 8 is meshed with the transmission gear 3. The counting wheel 1, the counting wheel rubber band 2, the transmission gear 3, the transmission tooth rubber band 4 and the end cover 5 constitute a toner cartridge detection device. The counting wheel rubber band 2 is wrapped and arranged on the outside of the counting wheel 1, and the transmission tooth rubber band 4 is wrapped and arranged on the transmission gear 3 at a position staggered with the teeth. The transmission tooth rubber band 4 contacts the counting wheel rubber band 2. The outer end surface of the counting wheel 1 is provided with a ramp protrusion 11, and the end cover 5 is provided with a block 51 adapted to the ramp protrusion 11. The block 51 and the ramp protrusion 11 ensure that the recognition machine rotates The counting wheel 1 is stopped at the correct position when moving, the stopper 51 can block the ramp protrusion 11 before the external force acts, and the ramp protrusion 11 passes over the stopper 51 under the action of external force, so as to release the restriction effect on the ramp protrusion 11, and ensure that the machine can be recognized normally next time without disassembling the toner cartridge. The cross-sectional shape of the counting wheel 1 is fan-shaped (that is, the complete circle has a notch), the angle of the fan is 210 degrees, the counting wheel rubber band 2 is adapted to the cross-sectional shape of the counting wheel 1, and the counting wheel 1 is sleeved on the guide column of the toner cartridge body 100, the top surface of the ramp protrusion 11 facing the end cover 5 is an inclined surface, the inclination direction of the inclined surface is consistent with the movement direction of the counting wheel 1, the inclination angle of the inclined surface is 8-15 degrees, if the inclination angle is too low, the stopping effect cannot be effectively guaranteed, if it is too high, the external force will be too large to cause damage to the components, the high point of the inclined surface is away from the movement direction of the counting wheel 1, and the high point of the inclined surface adopts an arc transition. When the printer is running, the transmission gear 3 of the gear transmission mechanism drives the toner cartridge detection device, and the toner cartridge detection device removes the positioning position against the toner cartridge body, and has no interference with the card slot of the toner cartridge body 100 when rotating. Compared with the prior art, the toner cartridge detection device of the present invention adopts a belt transmission, and the tooth meshing transmission accuracy requirement is lower than that of the original structure, which is conducive to reducing the production of defective products. At the same time, the block 51 matches the ramp protrusion 11, and the counting wheel 1 is pushed to the reset state by hand to contact with the transmission gear 3. The protrusion 51 can limit the separation of the counting wheel 1, and at the same time, the defect of the developing roller caused by the contact of the hand and the problem of the counting wheel 1 being separated and not recognized by the machine are eliminated, thereby ensuring the manufacturing quality of the product.

[0024] The invention can be widely applied to the field of laser printing toner cartridges.

Claims

1. A toner cartridge detection device, characterized in that: The toner cartridge detection device comprises a counting wheel (1), a counting wheel rubber band (2), a transmission gear (3), a transmission tooth rubber band (4) and an end cover (5); the transmission gear (3) and the counting wheel (1) are arranged on a toner cartridge body (100); the end cover (5) is arranged on the outside of the toner cartridge body (100) and covers the transmission gear (3) and the counting wheel (1); the counting wheel rubber band (2) is wrapped around the outside of the counting wheel (1); the transmission tooth rubber band (4) is wrapped around the transmission gear (3) at a position staggered from the teeth; the transmission tooth rubber band (4) and the counting wheel rubber band are arranged on the outside of the counting wheel (1); The counting wheel (1) is in contact with a belt (2), the outer end surface of the counting wheel (1) is provided with a ramp protrusion (11), the end cover (5) is provided with a stopper (51) adapted to the ramp protrusion (11), the stopper (51) can block the ramp protrusion (11) before an external force acts, and the ramp protrusion (11) passes over the stopper (51) under the action of the external force, the cross-sectional shape of the counting wheel (1) is fan-shaped, the counting wheel rubber band (2) is adapted to the cross-sectional shape of the counting wheel (1), the top surface of the ramp protrusion (11) facing the end cover (5) is an inclined surface, and the inclination direction of the inclined surface is consistent with the movement direction of the counting wheel (1).

2. The toner cartridge detection device according to claim 1, characterized in that: The angle of the sector is 210 degrees.

3. The toner cartridge detection device according to claim 1, characterized in that: The counting wheel (1) is sleeved on the guide column of the carbon powder box body (100).

4. The toner cartridge detection device according to claim 1, characterized in that: The inclination angle of the inclined surface is 8-15 degrees.

5. The toner cartridge detection device according to claim 4, characterized in that: The high point of the inclined surface is away from the movement direction of the counting wheel (1).

6. The toner cartridge detection device according to claim 5, characterized in that: The high point of the inclined surface adopts an arc transition.

7. A toner cartridge comprising the toner cartridge detection device according to claim 1, characterized in that: The toner cartridge further comprises the toner cartridge body (100), a stirring frame, a developing roller and a powder feeding roller arranged in the toner cartridge body (100); the stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body (100) and are driven to rotate by a gear transmission mechanism; the gear transmission mechanism comprises a driving gear (6), a stirring frame gear (7) meshing with the driving gear (6), a powder feeding roller gear (8), a developing roller gear (9), the transmission gear (3) and the counting wheel (1); the rotational torque of the driving gear (6) is transmitted to the transmission gear (3); the transmission tooth rubber band (4) on the transmission gear (3) drives the counting wheel (1) to rotate and match the sensor of the printer, so that the printer can recognize that the toner cartridge is a brand new one.

8. The toner cartridge according to claim 7, characterized in that: The stirring frame gear (7) is sleeved on the extension shaft of the stirring frame, the powder feeding roller gear (8) is sleeved on the extension shaft of the powder feeding roller, and the developing roller gear (9) is sleeved on the extension shaft of the developing roller.

9. The toner cartridge according to claim 7, characterized in that: The driving gear (6) is respectively meshed with the stirring frame gear (7), the powder feeding roller gear (8), and the developing roller gear (9), and the powder feeding roller gear (8) is meshed with the transmission gear (3).

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