Abstract: A self-linking continuous ribbon cartridge is provided with an internal self-inking reservoir having a wick positioned in spaced relationship to the ribbon. The ribbon is wrapped around a drum associated with a slip clutch to provide a slight biasing force to a lever so that as the ribbon is moved or driven by the printer mechanism a shoe on the end of the lever moves the ribbon into contact with the wick.

Abstract: A novel leakproof ribbon cartridge system includes an ink reservoir and wick which, together, are configured to form a closed system such that ink is constantly recirculated between the reservoir and the wick. In addition, the ribbon cartridge includes a spring apparatus for providing a print ribbon to the wick only when the ribbon cartridge is in operation.

Abstract: A printing ribbon spool which is leak-proof even at less than atmospheric pressure and which has an indefinite shelf life. The spool utilizes a central hub as an ink reservoir and has an ink-impervious member forming a portion of the reservoir isolating the ink from an ink-delivery pad before actuation. The central tubular portions of the spool are interlocked in such a manner that the spool is leak-proof. The ink-impervious member can be pierced by a pin to actuate the spool. Air compensation grooves are utilized to maintain air flow which results in uniform distribution of the ink throughout the pad. The edge of the ribbon contacts the pad and becomes saturated by capillary action to provide uniform and consistent printing for millions of characters.