Ricoh Company, Ltd.

Takeshi Hihara

Takeo Tsukamoto

Tsuneo Kurotori

Hiroyuki Yamashita

Ryota Suzuki

Manabu Seo

Takahiko Matsumoto

Aino Hasegawa

Yuuma Usui

Hisayoshi Ohshima

Hideomi Sakuma

Shigeo Takeuchi

Soh Noguchi

Masayuki Shoshi

Mizuki Otagiri

Tetsurou Sasamoto

Using an intermediate transfer body onto which a conductive recording liquid containing water that is ejected by heads is provided; and a potential applying unit which applies a potential which can electrolyze the water within the conductive recording liquid which is ejected from the heads and which temporarily bridges between the heads and the intermediate transfer body, the potential applying unit applies a potential between the intermediate transfer body and electrodes which are in contact with the recording liquid in supplying units which supply the recording liquid to the heads.

Image forming apparatus

Disclosed is an aqueous ink composition, including an aqueous solvent, a coloring agent dissolved or dispersed in the aqueous solvent, an ABA-type amphipathic polymer including a hydrophobic segment A and a hydrophilic segment B, and an anionic surfactant configured to dissolve or disperse the ABA-type amphipathic polymer in the aqueous solvent, wherein a viscosity of the aqueous ink composition is changed depending on a pH thereof.

Aqueous ink composition and image forming apparatus

Disclosed is an image forming apparatus including a head configured to discharge an aqueous recording liquid onto a recording medium; and a coating unit configured to apply a process liquid onto the recording medium, wherein the process liquid is formed by emulsifying, by a first surfactant, water including a water-soluble polymer and a low polarity solvent which is not compatible with the water, wherein the water and the low polarity solvent are emulsified as a W/O emulsion in which the water is in a dispersed phase and the low polarity solvent is in a continuous phase.

Image forming apparatus and image forming method

A silicone compound represented by the following Chemical Structure 1: wherein Y represents a substituted or non-substituted alkyl group having one to ten carbon atoms, X1, X2, and X3 independently represent methyl groups or any of Substituents A-1 to A-7, and l, m, and n are independently zero or an integer of from 1 to 6.

Silicone compound, photocurable liquid ink using the silicone compound, and method of manufacturing the ink

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Kanagawa, Japan

Takeshi Hihara