Squeegee roller system for removing excess developer liquid from photoconductive surfaces
US3955533A · kind A · utility
Inventors
Key dates
| Filing date | Sep 3, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Sep 3, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A squeegee roller system for removing excess developer liquid from the developed-image-bearing photoconductive surface of a drum or the like in which a freely rotatable squeegee roller having a covering of predetermined hardness is biased against the drum to cause excess developer to flow into a receptacle having a weir over which the liquid flows back to the supply tank and in which a fur or pile-covered cleaning roller contacting the squeegee roller is driven in the opposite direction from and at a speed slightly greater than that at which the drum drives the squeegee roller with lower portions of both rollers passing through developer liquid retained by the weir and in which a cleaning blade is biased into engagement with the cleaning roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.