Patent Number: 6,305,774

Title: Printhead substrate having an ink jet primitive structure that spans both edges of an ink feed channel

Abstract: An ink jet printhead having a first plurality of ink drop generators disposed along a first edge of an ink feed slot, and a second plurality of ink drop generators disposed along a second edge of the ink feed slot that is opposite the first edge. The ink drop generators are arranged in a plurality of groups called primitives, and each primitive includes a first subgroup of ink drop generators disposed along the first edge and a second subgroup of ink drop generators along second edge, whereby the first subgroup of each primitive includes a subset of the first plurality of ink drop generators and whereby the second subgroup of each primitive includes a subset of the second plurality of ink drop generators. In this manner each primitive is bifurcated across said ink feed slot. The ink jet printhead further includes a third plurality of ink drop generators disposed along one edge of the printhead and a fourth plurality of ink drop generators disposed along another edge of the printhead that is opposite the first edge.

Inventors: Torgerson; Joseph M. (Philomath, OR), Bakkom; Angela White (Corvallis, OR), MacKenzie; Mark H. (Corvallis, OR)

Assignee: Hewlett-Packard Company

International Classification: B41J 2/15 (20060101); B41J 2/05 (20060101); B41J 2/145 (20060101); B41J 029/38 (); B41J 002/015 (); B41J 002/145 (); B41J 002/14 (); B41J 002/04 ()

Expiration Date: 10/23/2018