Backup roll cleaning system for a heated roll fuser

Details Backup roll cleaning system for a heated roll fuser Backup roll cleaning system for a heated roll fuser

G - Physics

03

G

314/38.5

G03G 21/00 (2006.01) G03G 15/20 (2006.01)

Patent

CA 1106904

BACKUP ROLL CLEANING SYSTEM FOR A HEATED ROLL FUSER Abstract of the Disclosure A hot roll fuser includes a heated roller and a substan- tially 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.

321416

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