Electrographic development station with improved developer mixer and skive
US4633807A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Dec 11, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0822
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A development station applies developer material to a latent image on a photoconductor of an electrographic apparatus. An applicator in the station receives developer material from a sump and provides it to the latent image, and excess developer material from the applicator travels along a skive and is returned to the sump. A developer mixer in the sump includes a plurality of blades which are driven about an axis to mix the developer material and supply such material to the applicator. One of the mixer blades is longer than the other blades and strikes the skive during rotation of the mixer to flex the skive and thus facilitates movement of any developer material on the skive toward the sump. The longer blade of the mixer also engages an arcuate surface of the sump during rotation of the blade to wipe developer material from that surface, and removes excess developer from part of the applicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.