| US 7,601,291 B2 | ||
| Ink-jet recording apparatus | ||
| Hideo Ohira, Tajimi (Japan) | ||
| Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken (Japan) | ||
| Filed on Dec. 05, 2006, as Appl. No. 11/566,778. | ||
| Claims priority of application No. 2005-362309 (JP), filed on Dec. 15, 2005. | ||
| Prior Publication US 2007/0139497 A1, Jun. 21, 2007 | ||
| Int. Cl. B29C 71/00 (2006.01) | ||
| U.S. Cl. 264—344 | 16 Claims |
| 1. An ink-jet recording apparatus comprising an elastic member being employed in at least a part of an ink passage into which
a water-based ink for ink-jet recording is filled, wherein the ink-jet recording apparatus is configured to satisfy the following
inequality (1):
(T1/T0)×100≤about 200% (1),
wherein
T1 is filtration time when 20 mL of a first ink is filtrated through an electroformed filter having an effective area of 7.6
cm2, about 16500 pores and a pore size of 13 μm, the first ink being prepared by immersing an elastic member in a water-based
ink for ink-jet recording in a volume of 0.5 mL per 1 cm2 of surface area of the elastic member at 60° C. for 14 days, and subsequently at room temperature for 7 days; and
T0 is filtration time when 20 mL of a second ink is filtrated through an electroformed filter having the same specifications
as the above-mentioned electroformed filter, the second ink being prepared by allowing the same ink as the above-mentioned
water-based ink to stand at 60° C. for 14 days and subsequently at room temperature for 7 days.
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