High efficiency fuser roll assembly for xerographic material
US4109135A · kind A · utility
18Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1977 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Apr 25, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high efficiency fuser and pressure roll system for fixing xerographic toner particles to a carrier medium such as paper is presented having a helical resistance coil bonded at the active cylindrical surface of the fuser roll; the surface located heater is thermally isolated from the shaft mechanism supporting the fuser roll. Quick heating of the surface is achieved, along with diminished heat loss by heat conduction into the shaft and associated parts of the copier. The heater being integral with the fuser roll, heat is transferred directly and efficiently from the heater to the toner material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.