Portable thermal or ink jet printer with printhead rotating around paper to be printed onto, paper is rolled into cylindrical shape to be fed into printer

摘要

Before printing, paper is rolled and inserted into cylindrical printer body. It is then printed on by printhead rotating about axis inside housing cylinder (3). Printhead sits on motor shaft and rotating brushes hold paper in place. Paper is transported forward by one print line while head continues to rotate. Data for printing is fed from portable computer by infrared interface.