Developing box
A developing cartridge and developing unit technology, applied in the field of developing cartridges, can solve the problems of unfavorable developing quality, improvement, uneven rotation speed of developing roller, etc., and achieve the effect of improving developing quality and reducing manufacturing cost
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Example
[0036] First embodiment
[0037] See figure 1 The developing cartridge is driven by the driving end cover 11, the conductive end cover 12, the photosensitive drum protective cover 13, the torque spring, the drum rotation force receiving member 3, the drum unit 4, the developing unit 5 and the developing rotation force receiving member 2. Switch unit composition. The driving end cover 11 and the conductive end cover 12 constitute the box body of this embodiment, and the developing rotation force receiving member 2 can rotate around the rotation axis X.
[0038] See figure 2 and image 3 The drive end cover 11 is provided with a supporting shaft hole 111 and a shaft hole 112, and an inner shoulder 1120 is formed in the supporting shaft hole 111. The conductive end cover 12 is provided with a supporting column 121 and a pin hole 122.
[0039] The photosensitive drum protective cover 13 is detachably buckled on the box body through the buckle 130 and the buckle provided on the upper ...
Example
[0059] Second embodiment
[0060] As an explanation of the second embodiment of the present invention, only the differences from the first embodiment will be explained below.
[0061] See Picture 12 , The first magnetic block 7631 and the second magnetic block 7632 are used to replace the spring to form the reset member of this embodiment, and the first magnetic block 7631 and the second magnetic block 7632 are both toroidal structures.
[0062] The necked end 7220 of the guide rod 722 passes through the inner holes of the first magnetic block 7631 and the second magnetic block 7632 in sequence, and is in clearance fit with the guide hole 7644.
[0063] The first magnetic block 7631 is fixed on the large-diameter end surface of the circular boss structure 720 by bonding, the second magnetic block 7632 is fixed on the bottom surface of the first receiving cavity 7640 by bonding, and the first magnetic block 7631 The second magnetic block 7632 is arranged opposite to the same pole.
[0...
Example
[0065] The third embodiment
[0066] As an explanation of the third embodiment of the present invention, only the differences from the first embodiment will be described below.
[0067] See Figure 13 The outer wall of the guide rod 822 protrudes laterally to form two round rods 8232 to replace the ring in the first embodiment to form the output arm of this embodiment. The bottom surface of the first accommodation cavity 8640 in the transmission gear 864 is parallel to the rotation axis X A ring body 8641 is formed protruding in the direction of, the ring body 8641 is formed with two notches 8642 that cooperate with the round rod 8232 along the direction parallel to the axis of rotation X. The ring body 8641 with notches 8642 replaces the first embodiment. The protrusion at the bottom of the first accommodating cavity 8640 constitutes the input arm of this embodiment.
[0068] The upper end surface of the spring 863 abuts against the round rod 8232 instead of against the large-diame...
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