Developing apparatus for image forming equipment using developer carrier for forming microfields
US5311263A · kind A · utility
35Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Nov 16, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0928
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus for image forming equipment capable of insuring images with high resolution while preserving tonality. A developing sleeve is provided with conductive portions and insulative portions on its surface by knurling. A magnetic roller is accommodated in the sleeve to constitute a developing roller. A toner supply roller is held in contact with the developing sleeve. A doctor blade is disposed above and spaced apart by a predetermined distance from the developing sleeve and made of a magnetic material. Bias applying means applies an alternating voltage to the sleeve to effect reversal development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.