Development device having rotatable wiper wiping optical surface of lens
US12282273B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0891
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a housing to accommodate toner, a rotation member installed in the housing, a lens including an optical surface oriented in an axial direction of the rotation member, and a wiper installed in the rotation member and configured to repeatedly wipe the optical surface while the rotation member rotates and supported by the rotation member so as to be movable in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.