Cleaning device for toner detecting sensor
US4963929A · kind A · utility
28Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1990 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Feb 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner cleaning device for a toner detecting sensor for cleaning toner without scratching the surface of area to be detected. Two sheets of blades in two different length, one being shorter than the other, are atached to a rotating shaft for cleaning toner. A first blade does not reach the surface of the sensor but removes most of the toner accumulated on the surface to be detected except the toner in the area closely contacted with the surface, while a second blade contacts slidably and softly with the surface to be detected thereby removeing the toner accumulated thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.