Developer concentration controlling device
US4468112A · kind A · utility
44Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1982 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Feb 11, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for controlling the developer concentration in an electrophotographic copier or the like, in which a first detector for detecting the developer concentration and a second detector for detecting the image density are utilized for controlling process devices to maintain a constant optimum image density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.