Electrophotographic image forming apparatus, process cartridge and developing cartridge
US9766588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1684
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a main assembly, a supporting member capable of supporting a plurality of developing rollers and a plurality of photosensitive drums, and a plurality of developing cartridges each having the developing roller. An urging member urges each developing cartridge to urge the developing roller toward the photosensitive drum, and a spacing member spaces the developing roller and the photosensitive drum from each other. The developing cartridges each include an upper surface facing upward when mounted to the supporting member and two recessed portions provided at the upper surface, each extending in a longitudinal direction of the developing roller, wherein the two recessed portions are disposed along an arrangement direction of the developing cartridges and constitute a gripping portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.