Electrostatic copying apparatus with sheet feeder
US4469431A · kind A · utility
3Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1983 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Feb 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/901
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic copying apparatus including detecting means for detecting the longitudinal size of the copying paper and a control means for operating the charging corona-discharge device only for a time period corresponding to the detected longitudinal size of the copying paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.