Apparatus for maintaining distinct edges between two colors in a two-color image forming device
US4634259A · kind A · utility
23Cited by
3References
38Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 11, 1984 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Dec 11, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/102
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Two-color image forming apparatus has a bipolar photosensitive body, a first charging means, a first electrostatic latent image forming means, a first developing means, a second charging means, a second electrostatic latent image forming means, and a second developing means. The second charging means is a corona discharger having a corona ion stream control screen forming by laminating a conductive member with an insulating member and disposed at or near an open portion for radiating a corona ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.