| US 7,517,067 B2 | ||
| Ink supply system, recording apparatus, recording head, and liquid supply system | ||
| Ryoji Inoue, Kanagawa (Japan); and Hideki Ogura, Kanagawa (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Aug. 16, 2006, as Appl. No. 11/504,603. | ||
| Application 11/504603 is a division of application No. 10/940673, filed on Sep. 15, 2004, granted, now 7,128,407. | ||
| Claims priority of application No. 2003-338726 (JP), filed on Sep. 29, 2003. | ||
| Prior Publication US 2006/0274133 A1, Dec. 07, 2006 | ||
| Int. Cl. B41J 2/175 (2006.01); B41J 2/19 (2006.01) | ||
| U.S. Cl. 347—85 [347/92] | 12 Claims |
| 1. An ink supply system comprising:
an ink tank which contains ink, and
a liquid chamber which is connected to the ink tank through a plurality of communication paths, and which supplies ink taken
from the ink tank to a recording head,
wherein the liquid chamber, except the plurality of communication paths and a connection section to the recording head, forms
a substantially sealed space;
wherein the liquid chamber is provided with a filter which partitions the inside of the liquid chamber into a first region
at the side of the ink tank and a second region at the side of the recording head, and which forms a meniscus of ink which
is broken by a pressure of gas in the second region; and
wherein the filter includes an ink movement section through which the ink mainly in the first ink region is transferred to
the second ink region, and a gas movement section in which the gas mainly in the second region is moved to the first region
by movement of a meniscus of ink from the second region to the first region.
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