Charging device for electronic copier
US4387980A · kind A · utility
83Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0216
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an electronic copier provided with a light-sensitive medium, a charging station, an exposure station, a developing station, a transfer station and a fixing unit, the charging station includes a plurality of contact charging elements in contact with the light-sensitive medium and a voltage supply means for applying voltages to the contact charging elements. A voltage continuously rising in a predetermined period of time is supplied from the voltage supply means to the contact charging elements with the rotation of light-sensitive medium, and the light-sensitive medium is thus uniformly charged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.