Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2006-12-28
2010-12-14
Vo, Anh T. N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S089000
Reexamination Certificate
active
07850290
ABSTRACT:
An ink jet recording apparatus includes an ink jet head having a pressure chamber opposed to a nozzle, an upstream port that communicates with the pressure chamber, and a downstream port, a first tank that communicates with the ink jet head via the downstream port and is capable of storing an ink, a second tank that communicates with the first tank and is capable of storing the ink, a third tank that communicates with the ink jet head via the upstream port and communicates with the second tank and is capable of storing the ink, an opening and closing mechanism that is capable of opening and closing a circulation path that connects the ink jet head, the first tank, the second tank, and the third tank, and an air pressure adjusting mechanism that is capable of adjusting an internal air pressure in at least one of the first tank, the second tank, and the third tank. The ink is fed through the circulation path according to an air pressure generated by adjustment of the air pressure and an opening and closing state of the circulation path.
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Chinese Office Action dated May 15, 2009, corresponding to U.S. Appl. No. 11/617,036, filed Dec. 28, 2006.
Nishida Hideaki
Nitta Noboru
Shimosato Masashi
Suzuki Isao
Toshiba Tec Kabushiki Kaisha
Turocy & Watson LLP
Vo Anh T. N.
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