Recording apparatus

記録装置

Abstract

【課題】メインパルスとキャンセルパルスとを含む駆動信号を使用する記録装置で、駆動信号を遅延させる際に、液体吐出特性ばらつきが小さい記録装置を提供する。 【解決手段】流路の中の液体の体積固有振動周期の半分をALとするとき、制御部は、液体を吐出するメインパルスと、該メインパルスの後に送られる液体を吐出しないキャンセルパルスとを含む駆動信号を変位素子に送るとともに、隣接する液体加圧室に対応する変位素子に同時に駆動信号を送らないように、遅延させて駆動信号を送り、かつキャンセルパルスを送る際に、当該キャンセルパルスを送る変位素子に隣接する変位素子に、体積を増加させる信号を送り始めてからAL/3経過後〜体積を増加させる信号を送り始めてから2AL/3経過後である間以外の時間に、キャンセルパルスの体積を増加させる信号を送り始める。 【選択図】図7
PROBLEM TO BE SOLVED: To provide a recording apparatus which has a reduced variation in a liquid jetting characteristic when a driving signal is delayed by the recording apparatus using the driving signal including a main pulse and a cancel pulse.SOLUTION: When a half of a volume natural-vibration period of a liquid in a channel is regarded as AL, a controller sends the driving signal including the main pulse for jetting the liquid and the cancel pulse for not jetting the liquid sent after the main pulse to a displacement element and sends the driving signal being delayed so as not to send the driving signal to the displacement element corresponding to an adjacent liquid pressurizing chamber at the same time. When the cancel pulse is sent, a signal to increase volume of the cancel pulse begins to be sent to a displacement element adjacent to a displacement element for sending the cancel pulse at a time other than a while between a time after AL/3 has passed since the signal to increase the volume begins to be sent and a time after 2AL/3 has passed since the signal to increase the volume begins to be sent.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    US-9776404-B2October 03, 2017Hewlett-Packard Development Company, L.P.Piezoelectric printhead assembly
    WO-2015167484-A1November 05, 2015Hewlett-Packard Development Company, L.P.Piezoelectric printhead assembly