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Ink replacement set for ink-jet printer and inkjet printer
Ink replacement set for ink-jet printer and inkjet printer
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机译:喷墨打印机和喷墨打印机的墨水更换套件
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摘要
PROBLEM TO BE SOLVED: To provide a dye ink which hardly coagulates even when mixed with a pigment ink at the time of ink switching in an ink jet printer capable of alternately using a pigment ink and a dye ink; and a highly reliable ink jet printer. SOLUTION: The ink jet printer can alternately use a dye ink containing an acidic dye having a sulfo or sulfonate group and an alkaline pigment ink containing an acrylic acid copolymer as a dispersant by switching from one to another at any time. The difference in pH between the dye ink and the pigment ink is set at 1.5 or smaller.
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