Convective hot air impingement device with localized return paths
US7505722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2007 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Jun 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This is a pre-heater system especially useful in an electrostatic marking apparatus. It is used to heat the toner and paper (media) prior to the paper entering the conventional fuser station. Using this pre-heater increases fusing productivity (ppm), widens media latitude and/or extends fuser member life for a given fuser system. It also dramatically improves uniform heat transfer and paper handling problems encountered in prior art preheat fusing assemblies. The preheater is used together with the conventional fuser stations used today in electrostatic marking systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.