US 7,513,603 B2
Printhead assembly with ink inlet valve
Kia Silverbrook, Balmain (Australia); Norman Michael Berry, Balmain (Australia); Akira Nakazawa, Balmain (Australia); Paul Ian Mackey, Balmain (Australia); and Garry Raymond Jackson, Balmain (Australia)
Assigned to Silverbrook Research Pty Ltd, Balmain, New South Wales (Australia)
Filed on Dec. 05, 2005, as Appl. No. 11/293,806.
Prior Publication US 2007/0126810 A1, Jun. 07, 2007
Int. Cl. B41J 2/14 (2006.01); B41J 2/175 (2006.01)
U.S. Cl. 347—49  [348/85] 20 Claims
OG exemplary drawing
 
1. A printhead assembly for an inkjet printer configured for use with at least one replaceable ink cartridge, the printhead assembly comprising:
an ink inlet valve for sealed connection to an outlet on the ink cartridge, the inlet valve having an inlet opening and a movable valve member biased into sealing engagement with the inlet opening, the outlet having a complementary member for depressing the movable valve member out of engagement with the inlet opening to open the valve; wherein,
the inlet opening has an external formation about its periphery for sealing against the outlet before the complementary member depresses the movable valve member.