Retractable oil reducing metering blade
US5937257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1998 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jan 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Release Agent Management (RAM) system for a heat and pressure fuser apparatus utilized for fixing color toner images on substrates such as plain paper and transparency material such as Mylar.TM.. A donor/metering roll arrangement is provided with two oil metering blades, one of which is operative during two modes of operation and the other of which is operative during only one of the two modes of operation. During one mode of operation when color toner images are formed on a substrate such as plain paper, only one of the two blades is utilized. During a second mode of operation when color toner images are created on a transparent substrate such as Mylar.TM., both blades engage the surface of the metering roll so that a lesser amount of oil is ultimately conveyed to the surface of the heated fuser roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.