Portable printing system

摘要: A portable label printing system for on a variety of materials is disclosed. retractable platen roller cooperates with self-aligning print head in three planes proper registration. display screen allows the user to view precisely what actual and associated indicia will look like when printed selected label. In addition, includes an optical sensor positioned sense data marks backside label, located supply roll, allowing identify specifications make necessary adjustments affect quality. Reverse feed roll possible. The further comprises communication port cooperation various devices, such as online databases computers.