Developing device having passage of floating toner, and image forming apparatus including the same
US9804532B2 · kind B2 · utility
1Cited by
0References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a developing roller, a housing, and a film member. A side opening provided in the housing communicates with a suction device at an end in a rotation axis direction of the developing roller. A downstream cover portion of the housing covers the developing roller from a downstream side in a rotation direction of the image carrying member. Concave portions of the downstream cover portion and a portion of a film member bonded to the downstream cover portion form ducts that communicate from openings facing the image carrying member to the side opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.