Image forming apparatus and image forming method

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United States of America Patent

PATENT NO 9120334
APP PUB NO 20150202897A1
SERIAL NO

14596370

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Abstract

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Provided is an image forming apparatus, including: a pretreatment unit configured to bring a surface of a recording medium into contact with plasma; and an image forming unit configured to eject an ink onto the recording medium to thereby form an image; wherein the ink contains a pigment, water, a water-soluble organic solvent, and resin particles, wherein the water-soluble organic solvent is an amide compound having an inorganic/organic value (I/O value) of 1.1 to 2.0, and wherein the resin particles are ether-based polyurethane resin particles and have an acid group amount of 2.0 meq/g or more.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO 143-8555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagai, Koji Kanagawa, JP 52 217
Watarai, Yukitaka Kanagawa, JP 9 94

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