High efficiency fuser roll assembly for xerographic material
US4127764A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Mar 21, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0095
- 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 has an axially located cartridge heater element integrally coupled to a plurality of low thermal mass, high thermal conductivity fins for efficiently transferring heat by direct thermal conduction to and supporting the roll surface. The cartridge heater and fuser roll structure are thermally isolated from the shaft mechanism supporting the fuser roll itself. Quick and efficient heating of the roll surface is afforded, radiative transfer of heat being avoided. Further, there is afforded diminished heat loss through undesired heat conduction into the shaft and associated parts of the copier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.