Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 26, 2012
Patent Application Number
12672505
Date Filed
October 10, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
An ink tank with a high volume efficiency and a printing apparatus which are capable of completely using up ink stored in the ink tank. A meniscus holding force (Pm1) of a non-compressed portion (22b) of an ink guide member (22) is set higher than an initial ink-storage-portion negative pressure (P1), and lower than a used-up ink-storage-portion negative pressure (P2). In addition, a meniscus holding force (Pm2) caused under compression is set stronger than the used-up ink-storage-portion negative pressure (P2), and weaker than a meniscus holding force (Phf) of a head filter (50).
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