Ribbon cartridge with ink roll re-inking system

Details Ribbon cartridge with ink roll re-inking system Ribbon cartridge with ink roll re-inking system

B - Operations, Transporting

41

J

197/106, 242/61

B41J 31/16 (2006.01) B41J 32/02 (2006.01)

Patent

CA 2021824

A ribbon cartridge for an endless ribbon used in high speed printers, with increased reliability due to fewer parts, is constructed from a molded casing which is rectangular in shape into which are formed a post on which a cylindrical porous ink reservoir is mounted, a ribbon protector which isolates the ink reservoir from the ribbon in the stuffer box portion of the cartridge, and a forked bracket for mounting a shaft on which gears are mounted. A combination gear for driving a ribbon into the stuffer box and for re-inking the ribbon is mounted on a post and then rotatably mounted on the bracket formed into the housing and is inked by contact with the ink reservoir. An idler gear is rotatably mounted on a bracket which is pivoted from a socket molded into the socket wall and is spring biased into contact with the drive and transfer gear, which is turned by its extended shaft advance and ink the ribbon. As a result a simplified re-inking arrangement is achieved with the minimum of components. Also, by re-inking a central drive and transfer gear, only the print track of a ribbon is reinked thereby extending the re-inking life by conserving ink.

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