Process cartridge configured of developing cartridge including electrical contact surface, and drum cartridge including electrical contact surface and lock lever
US11567446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2022 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Jan 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1885
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge includes a developing cartridge and a drum cartridge. The developing cartridge includes: a casing; a developing roller rotatable about a developing axis extending in a first direction; and a development-side IC chip having a development-side electrical contact surface. The drum cartridge includes: a drum frame; a photosensitive drum rotatable about a drum axis extending in the first direction; a drum-side IC chip having a drum-side electrical contact surface; and a lock lever configured to lock the developing cartridge to the drum frame. The development-side electrical contact surface and the drum-side electrical contact surface are positioned opposite to the lock lever with respect to the casing in the first 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.