液滴吐出装置の記録ヘッド及び画像形成装置

Recording head of liquid droplet discharge device and image forming device

Abstract

【課題】現状のヘッド部品構成で液滴吐出特性を良好に保持できる液滴吐出装置の記録ヘッド及び画像形成装置を提供する。 【解決手段】複数のノズルに対応してそれぞれ設けられた個別液室に圧力を加えるアクチュエータ素子を、所定の印字タイミングで選択的にヘッド駆動回路からの駆動信号により駆動し、それぞれ対応するノズルからインク滴を吐出させて記録媒体に記録を行う液滴吐出装置の記録ヘッドであって、各アクチュエータ素子のグランド側の共通電極部とは別に、導電目的とは異なる機能を果たすヘッド構成部品にて導電ループを設け、且つ、一列に並設されたアクチュエータを駆動する為の駆動のICオン抵抗が、接続部からの距離が遠くなるにつれ小さくなっている。 【選択図】図1
<P>PROBLEM TO BE SOLVED: To provide a recording head of a liquid droplet discharge device and an image forming device, excellently holding a liquid droplet discharge characteristic with a head part constitution of the present state. <P>SOLUTION: This recording head of the liquid droplet discharge device is provided for making recording on a recording medium by discharging an ink droplet from respectively corresponding nozzles, by selectively driving an actuator element for applying pressure to an individual liquid chamber respectively correspondingly arranged in a plurality of nozzles, by a driving signal from a head driving circuit in the predetermined printing timing. A conductive loop is arranged by a head component for performing the function different from a conducting object, separately from a common electrode part on the ground side of the respective actuator elements. A driving IC-on resistance for driving actuators juxtaposed in a row, becomes small as a distance from a connecting part becomes greater. <P>COPYRIGHT: (C)2009,JPO&INPIT

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    US-8899730-B2December 02, 2014Ricoh Company, Ltd.Droplet discharging head and image forming apparatus
    US-9028052-B2May 12, 2015Ricoh Company, Ltd.Droplet discharging head and image forming apparatus
    US-9718270-B2August 01, 2017Ricoh Company, Ltd.Liquid discharge head, liquid discharge device, and liquid discharge apparatus
    US-9802407-B2October 31, 2017Ricoh Company, LtdLiquid discharge head, liquid discharge device, and liquid discharge apparatus