Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-03-18
2008-03-18
Do, An H. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S045000
Reexamination Certificate
active
11069552
ABSTRACT:
Disclosed are a head member having an ink-repellent film high in ink repellency, a method of ink-repellent treatment for the head member and an apparatus for the same. A head member (15) including a plurality of ejection ports (14) to eject ink which includes an ink-repellent film (25) on a surface having the ejection ports (14) open thereon, the ink-repellent film made of fluorocarbon resin subjected to plasma polymerization on the surface. An ink-repellent treatment method includes the steps of: disposing the head member (15) in a chamber (31) maintained in a vacuum state; introducing gaseous linear perfluorocarbon as a material of an ink-repellent film into the chamber (31); and depositing an ink-repellent film (14) made of fluorocarbon resin obtained by subjecting the perfluorocarbon to plasma polymerization on the surface of the head member (15) to perform the ink-repellent treatment.
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European Supplemental Search Report in English.
Isobe Yoshiyuki
Miyakawa Takuya
Yasoshima Takeshi
Do An H.
Seiko Epson Corporation
Sughrue & Mion, PLLC
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