A portable printer for printing on a roll of paper or label stock is provided having automatic print alignment with the width of the roll. The portable printer has a housing having a compartment for receiving the roll, a cover to access the roll, and a centering mechanism for the roll. The centering...http://www.google.nl/patents/US20040018035?utm_source=gb-gplus-sharePatent US20040018035 - Portable printer having automatic print alignment
