Developing cartridge and process cartridge for stably rotating developing roller
US9625875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2016 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Apr 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/163
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing cartridge includes: a housing having first and second sidewalls through which respective end portions of a developing roller shaft are rotatably inserted; a developing gear, which is arranged outside of the first sidewall, and which is fixed to the end portion of the developing roller shaft; a transmission gear, which is arranged outside of the first sidewall, and which transmits driving force to the developing gear; a first cover member, which is attached to the first sidewall, and which covers the transmission gear; and a second cover member, which is attached to the first sidewall, and which covers the developing gear from an outer side in the axis line direction. The second cover member is formed separately from the first cover member and is arranged side by side with the first cover member outside of the first sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.