Backup roll cleaning system for a heated roll fuser
US4165965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Apr 3, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A hot roll fuser includes a heated roller and a substantially non-deformable backup roll forming a nip through which a carrier with unfused toner may pass, the toner becoming fused by virtue of the heating action from the hot roll. A cleaning arrangement for cleaning the backup roll comprises a support and a pair of scraping blades, each supported in contacting relationship with the backup roll. To insure good scraping action, each of the blades has a serrated or interrupted scraping edge, and the serrations or interruptions of the first and second blades are offset so that the entire surface area of the backup roll is scraped either by the first or second blades, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.