Ink jet recording apparatus and waste ink tank thereof
AssigneeSeiko Epson Corporation
InventorsHiroe Niimura, Toshio Kumagai
Life of this patent
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Abstract
An ink coagulating agent of metal salt is provided in a waste ink tank. The coagulating agent is dissolved in aqueous solvent to be a metal salt solution. Absorbers of a porous material are impregnated with the metal salt solution and disposed in the waste ink tank.
Claims17
In a waste ink tank of an ink jet recording apparatus for storing waste ink of an ink-jet ink composition containing a pigment, thermoplastic resin, and a dispersing agent in an aqueous medium, said waste ink tank comprising an ink absorber disposed therein, said ink absorber being impregnated with an ink coagulating agent including metal salt, wherein the ink coagulating agent coagulates and retains said waste ink in said waste ink tank.
An ink jet recording apparatus for performing recording by jetting ink onto a recording medium, comprising:
- a waste ink tank for storing waste ink of an ink-jet ink composition containing a pigment, thermoplastic resin, and a dispersing agent in an aqueous medium;
- and
- heating means for heating said waste ink tank which heats said waste ink at a temperature not lower than a lowermost film forming temperature of said thermoplastic resin contained in said waste ink.
An ink jet recording apparatus comprising:
- a waste ink tank;
- and
- an ink coagulating agent for coagulating waste ink of an ink-jet ink composition accommodated in said waste ink tank, said ink composition containing a pigment, thermoplastic resin, and a dispersing agent in an aqueous medium, said ink coagulating agent comprising metal salt, wherein the ink coagulating agent is accommodated in said waste ink tank to thereby coagulate and retain waste ink of the ink composition.
Dependencies are inferred from the claim text.