Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-11-27
2009-08-11
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S055000
Reexamination Certificate
active
07571987
ABSTRACT:
The ink jet head ejects ink droplets by exerting an electrostatic force on ink having dispersed charged particles, and includes an insulating ejection substrate having through holes, ejection electrodes, each being arranged in each through hole and ink guides, each passing through each through hole. Each ink guide includes a support part and a tip end part that extends from an end portion of the support part, the tip end part is formed so that a back surface of the tip end part is flush with a back surface of the support part, and the tip end part is thinner than the support part to form a step on a front surface side and is gradually narrowed toward the ink droplet ejection side, and the electrostatic force has at least a component directed toward a tip end of an ink guide along the tip end part. The image recording apparatus includes the ink jet head and records an image on a recording medium.
REFERENCES:
patent: 6336707 (2002-01-01), Asai et al.
patent: 10-230608 (1998-09-01), None
patent: 11-268276 (1999-10-01), None
patent: 2003-175612 (2003-06-01), None
Kaneko Yasuhisa
Kosuge Takaaki
Birch & Stewart Kolasch & Birch, LLP
Fujifilm Corporation
Stephens Juanita D
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