Pressure enhancing formations in an ink jet printhead

Details Pressure enhancing formations in an ink jet printhead Pressure enhancing formations in an ink jet printhead

2006-06-27

2006-06-27

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S056000

Reexamination Certificate

active

07066577

ABSTRACT:
A printer has at least one ink jet printhead including a substrate that defines a plurality of ink inlet channels. A plurality of micro-electromechanical nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes a nozzle chamber positioned on the substrate and having a fixed portion that is fast with the substrate and a movable portion that is displaceable with respect to the substrate and that defines an ink ejection port. The nozzle chamber is in fluid communication with a respective ink inlet channel and the movable portion is displaceable towards and away from the substrate respectively to eject ink from the ink ejection port. An actuator is anchored to the substrate and is operatively engaged with the movable portion to displace the movable portion towards the substrate upon receipt of an electrical signal. A restrictive formation is arranged on the substrate and defines an opening that has a cross-sectional area that is less than that of the ink inlet channel.

REFERENCES:
patent: 4967209 (1990-10-01), Hasegawa et al.
patent: 6027205 (2000-02-01), Herbert
patent: 6299289 (2001-10-01), Silverbrook
patent: 6299290 (2001-10-01), Silverbrook
patent: 6505916 (2003-01-01), Silverbrook
patent: 6863379 (2005-03-01), Silverbrook
patent: 2003/0107620 (2003-06-01), Silverbrook
patent: 096758 (2001-04-01), None
patent: 2001096758 (2001-04-01), None
patent: WO 99/03680 (1999-01-01), None
patent: WO 99/03680 (1999-01-01), None

Affiliated with

Also associated with

Rating

Pressure enhancing formations in an ink jet printhead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure enhancing formations in an ink jet printhead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure enhancing formations in an ink jet printhead will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3683156