Cleaning performance monitor
US4967238A · kind A · utility
16Cited by
11References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1988 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrangement for detecting toner or debris deposits on an imaging surface is arranged downstream from the cleaning station. The imaging surface is illuminated with a light source, a light intensity detecting sensor arrangement is provided to view the illuminated surface and produce a signal representative of detected light intensity, and a response signal is produced indicative of the condition of the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.