| US 7,488,058 B2 | ||
| Ink container and ink jet recording apparatus | ||
| Satoru Okamoto, Saitama (Japan); Yoshihiro Ito, Saitama (Japan); Setsuji Tatsumi, Kanagawa (Japan); and Yasuhiko Kachi, Kanagawa (Japan) | ||
| Assigned to Fujifilm Corporation, Tokyo (Japan) | ||
| Filed on Jun. 27, 2006, as Appl. No. 11/475,008. | ||
| Claims priority of application No. 2005-188849 (JP), filed on Jun. 28, 2005. | ||
| Prior Publication US 2006/0290752 A1, Dec. 28, 2006 | ||
| Int. Cl. B41J 2/17 (2006.01); B41J 2/175 (2006.01) | ||
| U.S. Cl. 347—84 [347/85] | 7 Claims |
| 1. A method of manufacturing an ink container for containing ink to be supplied to an ink jet type recording head that has
nozzles to eject the ink, said ink container comprising a case body having an ink outlet formed through its bottom, and a
top lid for closing an open top of said case body, wherein said case body is partitioned by a partition wall into a negative
pressure generator chamber containing a negative pressure generator that absorbs and holds the ink by its capillary force
and keeps pressure inside said nozzles negative to atmospheric pressure while said ink outlet is connected to said recording
head, and a storage chamber containing an air-tight ink bag that stores the ink and has an ink spout connected to said negative
pressure generator chamber through an ink port formed through said partition wall, and wherein said top lid has a first air
introduction hole for introducing air into said negative pressure generator chamber, and a second air introduction hole for
introducing air into said storage chamber, said manufacturing method comprising steps of:
connecting said ink spout of said ink bag to said ink port, to attach said ink bag to said partition wall;
mounting said partition wall with said ink bag in said case body, to partition said case body into said negative pressure
generator chamber and said storage chamber;
placing said negative pressure generator in said negative pressure generator chamber;
fixing said top lid to said case body; and
filling said negative pressure generator chamber and said ink bag with the ink.
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