Patent ID: 8104889

Claim:
A method of printing onto a print medium using a mobile device with a printhead and sensor in a media feed path, the print medium having a data track on a leading edge of the print medium and extending perpendicular to a media feed direction, and positional coded data over a surface of the print medium, the positional coded data having a predetermined positional relationship relative to the data track, the data track containing first information encoded in accordance with a linear encoding scheme, the positional coded data encoding respective two-dimensional positions of the positional coded data, the method comprising the steps of: receiving the print medium into the media feed path of the mobile device; sensing, using the sensor, the data track; determining, using the first information, registration between the positional coded data and content to be printed; and printing the content in registration with and over the positional coded data, wherein the sensing and determining steps are completed prior to commencement of the printing step.