US 6,981,768 B2
Hand held inkjet pen
Thomas A. Saksa, Albany, Oreg. (US); and Grant K. Garner, Corvallis, Oreg. (US)
Assigned to Hewlett-Packard Development Company, LP., Houston, Tex. (US)
Filed on Oct. 30, 2002, as Appl. No. 10/283,949.
Prior Publication US 2004/0085430 A1, May 06, 2004
Int. Cl. B41J 3/36 (2006.01)
U.S. Cl. 347—109 41 Claims
OG exemplary drawing
 
1. A hand held inkjet pen, comprising:
a housing;
an ink reservoir located within the housing;
an inkjet printhead located toward a distal end of the housing, wherein the inkjet printhead comprises a plurality of nozzles for ejecting ink received from the reservoir; and
a spacer including a strain gauge at the distal end of the housing for contacting a media sheet, wherein force applied to the spacer selects an on state for controlling ejection of ink from the plurality of nozzles.