Seiko Epson Corporation

Koichi Higashimura

Yoshinori Miyazawa

Tsuyoshi Kitahara

Hiroshi Ito

Shuji Yonekubo

Masanao Kunugi

Makoto Fujino

Tahei Ishiwatari

Hidetsugu Shimura

Masanao Matsuzawa

Hideo Yamazaki

Hideki Morozumi

Tsuneo Handa

Teruyuki Mizumoto

Masanobu Motoki

Atsushi Uchino

In a wet recording apparatus comprising: an image bearing structure; a developing solution prepared by dispersing charged color material particles in a dispersion medium; an ion generating unit; and ion current control units, the developing solution is applied to the image bearing structure to form a developing solution layer thereon, the ion current controlling unit operates to cause ions produced by the ion generating unit to stick selectively to the surface of the developing solution layer, to form a color material image on the image bearing structure, and the color material image is transferred, as a toner image, onto a recording sheet.

Wet recording apparatus and wet recording method

An ink jet print head is provided having a nozzle forming substrate with a plurality of nozzles formed therein. Vibrators formed on a piezoelectric transducer disposed within the ink jet print head opposite the nozzles are independently drivable. A first gap is formed between the nozzle forming substrate and a vibrator in a region adjacent the nozzles. A second gap is formed between the nozzle forming substrate and a vibrator at a region away from the nozzles having a different dimension than the first gap.

Ink jet printer head

A combination toner for xerographic image formation having conductive portions and insulating portions is provided. The conductive portions function to accumulate a charge in the toner particles and the insulating portions function to lengthen the period of discharge of the accumulated charge. The toner can be either magnetic or non-magnetic and improves image formation and transfer.

Combination toner and printer utilizing same

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Nagano, Japan

Koichi Higashimura