CPC G03G 21/1647 (2013.01) [F16D 27/02 (2013.01); G03G 21/1676 (2013.01); G03G 21/186 (2013.01); G03G 2221/1657 (2013.01)] | 18 Claims |
1. A coupler for an image forming apparatus, comprising:
a shaft; and
a coupling structure to rotate a developing roller of the image forming apparatus, disposed on an end part of the shaft, movable along an axial direction of the shaft and coupleable with another coupling structure of a print engine of the image forming apparatus, the coupling structure including:
a body,
a magnet disposed in the body to cause the coupling structure to be attracted to the another coupling structure to align the coupling structure with the another coupling structure, and
a plurality of protrusions which protrude from the body in the axial direction to engage with the another coupling structure.
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