Konica Corporation

Other

Takuo Nishikawa

Yasuo Ando

Yasushi Nakano

Narito Goto

Noboru Koyama

Takafumi Yanagita

Yoshikazu Maekawa

Katsuaki Komatsu

Akihiko Tamura

Setsuko Kawahara

Masahiro Makita

Rieko Ren

Akira Kawakami

Tsutomu Kempo

Makoto Shibano

Miki Edamatsu

Satoshi Sakurai

An ink-jet printer which can carry out high speed image formation and which can avoid image failure due to a defective nozzle includes a first printing head to emit ink particles, said first printing head being a line-type head in which a plurality of ink-jet nozzles are arranged in a line, and a second printing head to emit ink particles having a same color as that of the ink particles emitted by the first printing head. Alternatively, the ink-jet printer may include a printing head to emit ink particles, a nozzle checking device for detecting a defect of the ink-jet nozzle mounted in the printing head, and a driving unit for moving the printing head in a line direction.

Ink jet printer which can carry out high speed image formation and which can avoid image failure due to a defective nozzle

In a liquid jetting apparatus provided with a head provided with a liquid jetting section; a feeding section for feeding a liquid to the head; and a control section for controlling the liquid jetting section to jet the liquid such that a jetting trace of the liquid is recorded on a recording medium; the liquid jetting apparatus is further provided with a liquid ejecting section for varying a pressure in the head in plural steps so as to eject the liquid in the head from the liquid jetting section.

Liquid jetting apparatus

An inkjet head is provided with a flexible printed circuit cable where a head body for ejecting ink and a connector are mounted at places different from each other, and the flexible printed circuit cable is bent between the head body and the connector so as to absorb tensile and pushing forces applied to the connector. The inkjet head is also provided with an ink ejecting portion for ejecting ink, a head-side connector and a supporting body or a cover for supporting or storing an electric connection portion or a flexible printed circuit cable interposed between the ink ejecting portion and the connector, and the head-side connector is supported by the supporting body or the cover so that the connector is movable in three-dimensional directions.

Inkjet head which prevents transfer of a load applied to an inkjet-head-side connector

A medium recording medium is provided which has a plurality of coated layers on a nonmagnetic base support, a least one of said coated layer containing a modified copolymer having introduced therein an anionic functional group which forms an intramolecular salt.

Magnetic recording medium containing a copolymer having an anionic

Disclosed is a magnetic recording medium comprising a non-magnetic support, and a first magnetic layer, a second magnetic layer and a third magnetic layer laminated on a non-magnetic support surface in this order, a total layer thickness of the second magnetic layer and the third magnetic layer of 0.7 .mu.m or less, and a coercive force of a ferromagnetic powder contained in the third magnetic layer being 1.2 to 2.5 times as strong as a coercive force of a ferromagnetic powder contained in the first magnetic layer.

Magnetic recording medium

A magnetic recording medium is disclosed. The surface of the magnetic layer has a Ns/Ns(t) ratio of 0.10 to 0.35, wherein the Ns is a number of spikes protruding from an average line of a surface roughness cross section curve by not less than 0.01 .mu.m and the Ns(t) is a total number of spikes protruding from the average line. The medium is improved in electromagnetic characteristics, contamination of magnetic head and rubbing noise.

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Hino, Japan

Takuo Nishikawa