Patent ID: 11927909
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Optics (Instruments)
Classification: CPC G  F | IPC F  G

Claim 8:
9. A development cartridge for an image forming apparatus, comprising:
a photoconductor; and
a developing roller, to supply a printing material to the photoconductor and movable between an alienated state in which the developing roller is spaced apart from the photoconductor and a non-alienated state in which the developing roller is in contact with the photoconductor, the developing roller including:
a roller body,
a shaft to pass through the roller body, and
a coupling structure, disposed on an end part of the shaft, the coupling structure including:
a body,
a magnet disposed in the body to cause the coupling structure to move along an axial direction of the shaft when the developing roller is moved from the alienated state to the non-alienated state to align the coupling structure with another coupling structure of a print engine of the image forming apparatus, and
a plurality of protrusions which protrude from the body in the axial direction to engage with the another coupling structure when the developing roller is moved from the alienated state to the non-alienated state.