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Printronix, Inc.

Printronix, Inc. Patent applications
Patent application numberTitlePublished
20110176850INTELLIGENT RIBBON CARTRIDGE - In one embodiment, an intelligent printer ribbon cartridge includes a microcontroller that monitors sensors related to the ribbon cartridge for use in a line matrix printer. The ribbon cartridge contains an impact printing ribbon in the form of either a simple loop, a mobius loop, or a long strip of ribbon connected to two spools, with one spool at each end of the cartridge. The ribbon cartridge is able to monitor at least one motion sensor, process the information, and perform a suitable action or communicate an action or information to the printer. This allows the ribbon cartridge to adapt or instruct the printer to adapt with any new types of ribbons, ribbon cartridges, formats, etc. so that the printing may occur with virtually any type of ribbon/cartridge.07-21-2011
20110070011RIBBON CASSETTE - In one embodiment, a ribbon cassette includes two rows of spherical bumps extending between sidewalls of the cassette on both a floor and ceiling of the cassette and a pair of concentric arched retaining walls on both the floor and ceiling between an exit gate and the rows of bumps. In another embodiment, there is only one row of bumps and one retaining wall on the floor and ceiling. In another embodiment, the retaining walls are straight. The two rows and retaining walls, along with cassette sidewalls, form three distinct zones for densely packing the ribbon, unpacking the ribbon, and isolating the ribbon, resulting in less jamming with longer lengths of ribbon.03-24-2011