Developing device having thickness regulation blade
US8948666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0812
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes: a casing; a developing roller rotatably supported to the casing; a resiliently deformable blade supported to the casing; a regulation portion; and a covering portion. The developing roller is rotatable in a rotational direction and carries a layer of developer thereon. The blade extends in an axial direction of the developing roller and has one axial end portion formed with a through-hole, the blade having a first surface facing the developing roller and a second surface opposite to the first surface. The regulation portion is configured to be in contact with the developing roller to regulate a thickness of the layer of the developer carried on the developing roller. The covering portion is provided on the second surface and positioned to cover the through-hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.