Inkjet ink reservoir

Details Inkjet ink reservoir Inkjet ink reservoir

2007-05-03

2010-12-14

Eashoo, Mark (Department: 1796)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000, C524S115000, C524S128000

Reexamination Certificate

active

07850296

ABSTRACT:
An ink jet ink reservoir having a part of its members formed of a polyolefin resin is provided which is free from printing defects caused by filter clogging attributable to a compound derived from an antioxidant. An ink jet ink reservoir used in an ink jet recording apparatus, wherein a part of constituent members of the ink jet ink reservoir is formed of a polyolefin resin, wherein the polyolefin resin contains as additive an antioxidant at least with a hindered phenol skeleton and a phosphorus antioxidant more hydrophobic than bis(2,6-di-t-butylphenyl) pentaerythritol diphosphite (denoted by P-6). The members are free from a phosphorus antioxidant having hydrophobicity equal to or lower than the above P-6.

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Chemical Society of Japan, Society of Polymer Science, “New Development of Polymeric Additives”, Japan, Nikkan Kogyo Shimbun, Ltd., Sep. 30, 1998, pp. 122 to 126 (with translation).

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