US 7,566,182 B2
Printhead that uses data track for print registration on print medium
David John Atkinson, Balmain (Australia); Paul Lapstun, Balmain (Australia); and Kia Silverbrook, Balmain (Australia)
Assigned to Silverbrook Research Pty Ltd, Balmain, New South Wales (Australia)
Filed on May 09, 2005, as Appl. No. 11/124,186.
Prior Publication US 2006/0250491 A1, Nov. 09, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 2/01 (2006.01); B41J 2/07 (2006.01); B41J 13/00 (2006.01); B41J 3/36 (2006.01); B41J 29/38 (2006.01)
U.S. Cl. 400—88  [400/76; 347/9; 347/104] 8 Claims
OG exemplary drawing
 
1. A mobile device for printing onto a print medium, the print medium including a linear-encoded data track extending in an intended direction of printing, the data track encoding at least a clock signal the mobile device including:
a media feed path;
at least two sensors in the media feed path configured to sense the data track of the print medium while the print medium is positioned in the media feed path;
a fire control processor connected to the sensors to extract the clock signal from the linear-encoded data track, and to generate a fire control signal based upon the clock signal;
a printhead for printing onto the print medium in response to the fire control signal, wherein the at least two sensors include a first sensor positioned ahead of the printhead in the intended direction of printing and a second sensor positioned after the printhead in the intended direction of printing, 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.