US 9,809,034 B2
Liquid supply unit having filter
Yuji Aoki, Hara-mura (JP); Masahiro Karasawa, Nagano (JP); and Kazuyuki Hirata, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Apr. 12, 2016, as Appl. No. 15/96,699.
Claims priority of application No. 2015-088167 (JP), filed on Apr. 23, 2015.
Prior Publication US 2016/0311228 A1, Oct. 27, 2016
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17563 (2013.01) [B41J 2/17513 (2013.01); B41J 2/1752 (2013.01); B41J 2002/17516 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A liquid supply unit configured to, with respect to a liquid jet apparatus having a liquid inlet configured to introduce a liquid, supply the liquid to the liquid inlet, comprising:
a liquid housing part configured to house a liquid, the liquid housing part being formed by a flexible sheet member;
a liquid outlet configured to draw the liquid from inside the liquid housing part to outside the liquid housing part; and
a filter provided upstream of the liquid outlet in a channel of the liquid that is drawn from inside the liquid housing part to outside the liquid housing part via the liquid outlet,
the filter including a first filter and a second filter that are constituted by a plurality of fibers laminated in a flow direction of the liquid,
the first filter being provided upstream of the second filter in the channel of the liquid,
the first filter and the second filter differing in coarseness, and
a largest surface among a plurality of surfaces of the filter being parallel to a largest surface among a plurality of surfaces of the liquid housing part.