Ink ribbon cartridge pinch roller

摘要

An ink ribbon cartridge comprises a cartridge housing, an endless length of ink ribbon received in the housing, and a take-up roller and a pinch roller for transporting the ribbon and guiding the ribbon in a repetitively folded manner, characterized in that at least one of said take-up and pinch rollers consists of a compressed body of flexible or semi-rigid polyurethane foam. The use of compressed flexible or semi-rigid polyurethane foam results in improved rollers which have the good ribbon driving performance and driving stability.