Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder
US12259675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2023 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Dec 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1823
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge includes: a drum cartridge; and a developing cartridge. The drum cartridge includes: a drum frame; a photosensitive drum rotatable about a first axis extending in a first direction; and a first memory having a first electrical contact surface. The developing cartridge is attachable to the drum frame and includes: a casing; a developing roller rotatable about a second axis extending in the first direction; a second memory having a second electrical contact surface; and a developing holder holding the second electrical contact surface such that the second electrical contact surface is movable relative to the casing. The drum cartridge further includes an elastic member that can expand and contract in a second direction crossing the first direction. The developing holder is connected to the elastic member and is movable in the second direction in a state where the developing cartridge is attached to the drum frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.