Recording head and recording apparatus

Details Recording head and recording apparatus Recording head and recording apparatus

2007-07-24

2007-07-24

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S020000, C347S021000, C347S029000, C347S085000

Reexamination Certificate

active

11202103

ABSTRACT:
A recording head has a channel forming member and an element substrate. A discharge port through which liquid is discharged is formed in the channel forming member. An energy generating element for discharging the liquid is formed in the substrate. A gap forming member is arranged above the channel forming member. A moisture retention liquid retention portion which retains moisture in the vicinity of the discharge port is formed between the gap forming member and the channel forming member so as to be opened toward the discharge port side. Even if the state in which the liquid is not discharged continues, the liquid in the discharge port can be prevented from drying with the recording head having the above configuration.

REFERENCES:
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patent: 5929877 (1999-07-01), Hetzer et al.
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patent: 6293648 (2001-09-01), Anderson
patent: 6578947 (2003-06-01), Suwabe et al.
patent: 2005/0168517 (2005-08-01), Usuda
patent: 2005/0200676 (2005-09-01), Kadomatsu et al.
patent: 2006/0119663 (2006-06-01), Tsuchii
patent: 2001018408 (2001-01-01), None
patent: 2001158106 (2001-06-01), None
patent: 2002-331678 (2002-11-01), None

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