Developer thin layer forming apparatus
US4637706A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1984 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Jun 8, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0914
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus, including, a developer supply container, having an opening, for containing a non-magnetic developer and magnetic particles, an endlessly movable developer carrying member of a non-magnetic material for carrying a developer, which is movable between an inside of the developer supply container and an outside of the developer supply container through the opening, a magnetic particle confining member, spaced from outer surface of the developer carrying member with a gap, a magnet for generating a fixed magnetic field, having a magnetic pole disposed inside of the carrying member and upstream of the confining member with respect to movement of the developer carrying member, and a magnet, disposed outside of the carrying member in proximity with the confining member at an upstream side thereof with respect to movement of the developer carrying member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.