Toner cartridge with heat shield shutter

Details Toner cartridge with heat shield shutter Toner cartridge with heat shield shutter

G - Physics

03

G

G03G 15/08 (2006.01) G03G 21/18 (2006.01)

Patent

CA 2225365

A toner cartridge (1) has a single molded element, molded of polystyrene, which is heat sensitive. The molded element forms front handles (3a, 3b) and a cleaner chamber (27) mounts a photoconductor drum (49). A toner hopper (61) is located generally under the handles. A developer roller (43) receives toner from the hopper and applies it to the photoconductor. A lower shutter (7) of polycarbonate, which is heat resistant, is mounted on actuating links (13a, 13b). When the cartridge is installed in the printer the actuating links are moved to rotate the shutter to a position covering the lower surface of the cleaner chamber, where it serves as an effective heat shield protecting the cleaner from fixing heat of the printer.

Cartouche de toner (1) comportant un seul élément moulé en polystyrène, thermosensible. L'élément moulé forme des poignées avant (3a, 3b) et une chambre de nettoyage (27) est au-dessus d'un tambour photoconducteur (49). Une trémie de toner (61) est habituellement placée au-dessous des poignées. Un rouleau de révélateur (43) recoit le toner de la trémie et l'applique au photoconducteur. Un obturateur inférieur (7) en polycarbonate, résistant à la chaleur, est monté sur des tringles d'actionnement (13a, 13b). Lorsque la cartouche est installée dans l'imprimante, les tringles d'actionnement se déplacent pour faire tourner l'obturateur à une position couvrant la surface inférieure de la chambre de nettoyage, où il sert d'écran thermique protégant le nettoyeur contre la chaleur de fixation de l'imprimante.

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