Ceramic donor roll for scavengeless development in a xerographic apparatus
US5322970A · kind A · utility
25Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1993 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Apr 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0643
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A donor roll for the conveyance of toner in a development system for an electrophotographic printer includes an outer surface of ceramic. The ceramic has a suitable conductivity to facilitate a discharge time constant thereon of less than 600 microseconds. The donor roll is used in conjunction with an electrode structure as used in scavengeless development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.