Internally shielded transfer roller
US3936175A · kind A · utility
7Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1685
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A biased roller electrostatographic image transfer system in which the image transfer fields are generated by a biased conductive member inside the roller and tailored by a partially surrounding stationary conductive shield which is also inside the roller. The shield extends over the pre-nip area to suppress undesired pre-nip transfer fields, but is apertured in the nip area to allow a high transfer field to be applied therethrough the shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.