Printer with failsafe features

摘要

A portable printer which can print on a variety of surfaces is disclosed. The printer has a number of failsafe features which improve its operation and the quality of print. In particular, printing is inhibited in a certain number of situations. Alternatively or additionally, a maintenance sequence can be implemented when the printing unit is removed from a base location. A set of absorbent strips additionally or alternatively allow for the ink jet nozzles to be discharged within the print area.