Self-propelled composite printing device for printing either on a tape or on a flat surface

摘要

A composite printing device comprises a portable printer and a tape printer case removably engageable with the portable printer from below. The portable printer includes a bottom printing head, a pair of drive wheels and a pair of idle wheels. The tape printer case accommodates a tape roll for supplying a tape, a platen for guiding the tape, and a feed roller for feeding the tape from the tape roll. When the tape printer case is engaged with the portable printer, the printing head faces the tape guided by the platen while the drive wheel is operatively connected to the feed roller for rotationally driving the feed roller.