Exposure control device for a copier
US4755852A · kind A · utility
16Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Mar 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/55
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An exposure control device for a copier includes a microcomputer which automatically varies the exposure sequentially in a stepwise fashion and the copier performs copying operation in correspondence with the timing of this variation in exposure. The user has only to press a print button once to obtain a copy or copies with exposure changed in stepwise fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.