Patent ID: 8018478
Filing Date: 2011-09-13
Classification: G03G,H04N

Abstract:
1. A device for printing onto a print medium, the device including: a media feed path for receiving a print medium, the print medium including: at least two sensors in the media feed path configured to sense the data track of the print medium while the print medium is moved through the media feed path; a fire control processor connected to the sensors to extract the clock signal from the data track, and to generate a fire control signal based upon the clock signal; a processor for extracting two-dimensional coordinate grid positions from the second coded data, to determine a relative two-dimensional position of the print medium with respect to the printhead from the two-dimensional coordinate grid positions; a printhead for printing onto the print medium in response to the fire control signal and based upon the relative two-dimensional position, wherein the at least two sensors include a first sensor positioned ahead of the printhead in the media feed direction and a second sensor positioned after the printhead in the media feed direction, the clock signal being extracted from input from the first sensor before printing commences on a leading end portion of the print medium, and the clock signal being extracted from input from the second sensor while printing a trailing end portion of the print medium.