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

1978-04-03

1979-08-28

Yuen, Henry C.

Heating

With cleaning means for apparatus

432 60, 1525651, 355 3FU, 355 15, 101425, 118 60, 34120, G03G 1500

Patent

active

041659651

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.

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patent: 3649992 (1972-03-01), Thettu
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patent: 4042415 (1977-08-01), Hwa
patent: 4080159 (1978-03-01), Behum

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