Developer regulating device in developing apparatus
US4270487A · kind A · utility
20Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1978 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Oct 19, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer level sensor installed on the sidewall of a developer container in a developing apparatus consists of an oscillator circuit with multiple coils, the mutual inductance of which is adjusted by a moveable electric conductor. The lower limit level of developer sensed may be adjusted by the positioning of a control plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.