Photoreceptor edge erase system for tri-level xerography
US4920024A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0163
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The prevention of photoreceptor edge development by a discharge image area development system is accomplished by the provision of a photoreceptor charging device which uniformly charges the photoreceptor across its entire width, including the edges thereof outside of the image areas. Thus, when the charged edge areas pass through a discharged-area development housing edge development is precluded. When discharged image area development is used in combination with subsequent charged-image area development as in the case of tri-level, highlight color imaging, photoreceptor edge development is precluded by discharging the edges subsequent to discharged-area development and prior to charged area development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.