Ink jet recording head and ink jet recording apparatus

Details Ink jet recording head and ink jet recording apparatus Ink jet recording head and ink jet recording apparatus

2007-03-07

2010-12-28

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07857430

ABSTRACT:
An ink jet head includes an ejecting unit for ejecting ink droplets toward a recording medium and an ejection port substrate in which ejection ports from which ink droplets are ejected are opened, in which a surface of the ejection port substrate on a side from which the ink droplets are ejected is coated with a diamond like carbon layer. Alternatively, the ink jet head includes a head substrate in which resin-made ink guides are formed, each ink guide for forming a meniscus of the ink and ejection electrodes, each for forming an electric field on a tip end of the ink guide and ejecting the ink as the ink droplets by exerting an electrostatic force onto the ink, in which the ink guide is coated with a protective layer such as the diamond like carbon layer. An ink jet recording apparatus includes the ink jet head and a moving unit for moving the ink jet head and the recording medium relatively.

REFERENCES:
patent: 6158844 (2000-12-01), Murakami et al.
patent: 2007/0002115 (2007-01-01), Nakazawa
patent: 2007/0120900 (2007-05-01), Kosuge et al.
patent: 10-138493 (1998-05-01), None

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