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US 6,786,587 B2Granted
Ink-jet printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorNoribumi Koitabashi
Life of this patent
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AssigneeCanon Kabushiki Kaisha
InventorNoribumi Koitabashi
Estimating the term…
Upon performing printing using a dye ink and a pigment ink and in addition a treatment liquid making those inks insoluble, two kinds of inks consisted of the pigment ink and the dye ink are used. After applying the pigment ink on a printing medium, the dye ink is applied overlaying with the pigment ink. After mixing these inks on the printing medium, the treatment liquid which makes the inks insoluble, is applied. In the alternative, a mixed ink in which a pigment ink not requiring a dispersant and the dye, is used. After application of this mixed ink on the printing medium, the treatment liquid which makes the ink insoluble, is applied. Therefore, problem of “crack”, “soaking out”, “overflow” or lowering of OD value which can be caused upon reaction of the pigment ink and the dye ink or the mixed ink with the treatment liquid, can be solved to achieve high quality printing.
An ink-jet printing apparatus for performing printing by applying a first ink, a second ink, and a treatment liquid reacting with the first ink and the second ink onto a printing medium, the first ink and the second ink being of the same color, comprising:
An ink-jet printing apparatus for performing printing by applying a first ink, a second ink, and a treatment liquid reacting with the first ink and the second ink onto a printing medium, the first ink and the second ink being of the same color, comprising:
A printing method performing printing by applying a first ink, a second ink, and a treatment liquid reacting with the first ink and the second ink onto a printing medium, the first ink and the second ink being of the same color, comprising:
Dependencies are inferred from the claim text.