Dual metering blade for fusing color toner images
US5504566A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for fusing toner images to a substrate. A Release Agent Management (RAM) system for applying silicone oil to a metering roll utilizes a pair of metering blades to improve oil uniformity on the metering roll. Thus, streaks or localized areas of excess silicone oil as the result of blade defects and/or dirt accumulation associated with a first blade, ARE metered or smoothed to a more uniform thickness by the second blade. To this end, the first metering blade serves to meter silicone oil to a first predetermined thickness while the second blade serves to meter oil streaks to a second predetermined thickness which is greater than the first predetermined thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.