US 7,152,951 B2
High resolution ink jet printheadGeneral
US 7,152,951 B2
High resolution ink jet printhead
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Vip Patel
Art Unit:
2861 Printing/Measuring and Testing
Agent:
Inventors:
Colin G. Maher; James H. Powers
Assignee:
Priority:
02/10/04
Filed:
02/10/04
Granted:
12/26/06
Expiration:
12/25/24
Abstract
A high resolution printhead for an ink jet printer. The printhead includes a semiconductor substrate containing at least one ink feed edge and a plurality of ink ejection actuators spaced a distance from the ink feed edge. Each of the ink ejection actuators has an aspect ratio ranging from about 1.5:1 to about 6:1. A nozzle plate is attached to the semiconductor substrate. The nozzle plate contains a plurality of nozzle holes, ink chambers and ink channels laser ablated in the nozzle plate corresponding to the plurality of ink ejection actuators. Adjacent nozzle holes are spaced apart with a pitch ranging from about 600 to about 1200 dpi. The distance from the ink feed edge is substantially the same for each of the ink ejection actuators.
Cooperative Patent Classification (CPC)
B41B41J2002/14387B41J