Ink-jet head and valve

Details Ink-jet head and valve Ink-jet head and valve

2011-04-19

2011-04-19

Mruk, Geoffrey (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000

Reexamination Certificate

active

07926922

ABSTRACT:
An ink-jet head of the present invention includes a discharge valve that includes a valve chamber and an opening/closing mechanism. The valve chamber has an ink supply port through which ink is supplied from outside, an outside discharge port through which ink is discharged to outside, and a reservoir discharge port through which ink is discharged to an ink reservoir. The opening/closing mechanism is able to selectively take either one of a state where a passage is formed between the ink supply port and the outside discharge port while access between the ink supply port and the reservoir discharge port is blocked and a state where a passage is formed between the ink supply port and the reservoir discharge port while access between the ink supply port and the outside discharge port is blocked.

REFERENCES:
patent: 4520369 (1985-05-01), Shackleton
patent: 6217164 (2001-04-01), Hino
patent: 2005/0157104 (2005-07-01), Hirota et al.
patent: S50-002959 (1975-01-01), None
patent: H05-077439 (1993-03-01), None
patent: 2000-198215 (2000-07-01), None
patent: 2004-268282 (2004-09-01), None
patent: 2005169839 (2005-06-01), None
patent: 2005-297577 (2005-10-01), None
Japan Patent Office; Notice of Reasons for Rejection in Japanese Patent Application No. 2006-097095 (counterpart to the above-captioned U.S. patent application) mailed Mar. 30, 2010 (abridged translation).

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