Oil delivery sheet material for use in various printer devices

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/005 (2006.01) G03G 15/20 (2006.01)

Patent

CA 2190617

The present invention is an improved device for delivering a release agent to fuser rollers employed in various printer devices, such as laser printers, fax machines, copier machines, etc. The release agent delivery device of the present invention comprises an elongated web of microporous membrane (e.g., expanded polytetrafluoroethylene) bonded to a substrate, filled with release agent, and mounted between two shafts. The web spans across the fuser roller so that the roller is simultaneously cleaned and oiled during normal operation. When the portion of the web in contact with the fuser roller becomes contaminated or expends its release agent supply, the web can be advanced to place a fresh surface in contact with the fuser roller.

La présente invention est un dispositif amélioré pour apporter un agent de décollement à des rouleaux fixateurs utilisés dans de nombreuses imprimantes telles que des imprimantes à laser, des télécopieurs, des photocopieuses etc.,. Le dispositif d'apport d'agent de décollement de la présente invention comporte une bande allongée de membrane microporeuse (par exemple du polytétrafluoroéthylène expansé) fixée à un support, remplie d'agent de décollement et montée entre deux arbres. La bande s'étend sur le rouleau fixateur de sorte que ce dernier est en même temps nettoyé et huilé au cours de son fonctionnement normal. Lorsque la partie de la bande en contact avec le rouleau fixateur devient souillée ou a épuisé sa réserve d'agent de décollement, on peut la faire avancer pour mettre une nouvelle surface en contact avec le rouleau fixateur.

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