Copier for greater than standard length documents
US4162845A · kind A · utility
1Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1977 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Sep 15, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0448
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic reproduction machine having an improved control circuit to control turn on of a discharge lamp positioned to discharge a moving photoconductive belt member prior to development thereof. The control circuit enables a first mode of operation for copying standard length documents of 81/2 inches in length and a second mode of operation for copying documents greater in length than 81/2 inches without erasing image areas by the discharge lamp. For the second mode of operation an RC adjustable circuit enables a suitable delay before lamp turn on. A machine operator can easily select the desired mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.