Printhead chip with nozzle-clearing structures

Details Printhead chip with nozzle-clearing structures Printhead chip with nozzle-clearing structures

2006-07-11

2006-07-11

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S022000, C347S035000, C347S054000

Reexamination Certificate

active

07073892

ABSTRACT:
A printhead chip includes a substrate that defines ink supply conduits. Drive circuitry is positioned on the substrate. Nozzle chamber assemblies are positioned on the substrate. Each nozzle chamber assembly defines a nozzle chamber in fluid communication with a respective ink supply conduit and has an upper portion that defines an ink ejection port in fluid communication with the nozzle chamber and a lower portion that extends from the substrate. The upper portion is reciprocally displaceable with respect to the lower portion so that ink is ejected from the ink ejection port. Actuators are connected to the drive circuitry and to respective said upper portions to displace said upper portions to eject ink. Nozzle-clearing structures are mounted on the substrate in respective nozzle chambers. The nozzle-clearing structures are dimensioned to project through respective ink ejection ports at some stage during displacement of respective upper portions to clear any blockages in the ink ejection ports.

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: 6767077 (2004-07-01), Silverbrook
patent: 2002/0075347 (2002-06-01), Sharma et al.
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

Printhead chip with nozzle-clearing structures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printhead chip with nozzle-clearing structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printhead chip with nozzle-clearing structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3598322