Process cartridge
US12386307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2024 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Feb 6, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process cartridge has a developing roller, a photosensitive drum, and the frame having a first frame rotatably supporting the developing roller and a second frame rotatably supporting the photosensitive drum. The first frame is movable relative to the second frame between a first position and a second position. The developing roller and the photosensitive drum are in contact at the first position and separated at the second position. A developing roller coupling member, a chip having an electrical contact surface and a separation protrusion with a force receiving surface at the lower end of the frame to receive a force to move the first frame from the first position to the second position. When the first frame is in the first position, a lower end of the force receiving surface is not lower than a lower end of the covering portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.