Electroded donor roll for a scavengeless developer unit
US5172170A · kind A · utility
60Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1992 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Mar 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus in which a donor roll advances toner to an electrostatic latent image recorded on a photoconductive member. A plurality of electrical conductors are located in grooves in the donor roll. The electrical conductors are spaced from one another and adapted to be electrically biased in the development zone to detach toner from the donor roll so as to form a toner cloud in the development zone. In the development zone, toner is attracted from the toner cloud to the latent image. In this way, the latent image is developed with toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.