Image forming apparatus having bimodal charging means
US5426487A · kind A · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1993 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Oct 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image member which moves through a path past a series of stations. The series of stations create both first and second toner images on the same frame of the image member which images can be of different color. When the apparatus is used to form single color images, a charging station used in creating the second toner image is turned to a standby condition. In the standby condition, a bias is maintained on the charging station to repel toner particles from the first toner image that might otherwise accumulate on the charging station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.