INKJET PRINTING DEVICE

To provide an inkjet printing device that can reduce deterioration in printing image quality while suppressing a configuration of the device from being complicated.SOLUTION: A control part 6, when a difference is caused between count values C1 and C2 of output pulse number of encoders 33 and 32 in e...

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Bibliographic Details
Main Author YOSHINO TAKESHI
Format Patent
LanguageEnglish
Japanese
Published 24.01.2019
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Summary:To provide an inkjet printing device that can reduce deterioration in printing image quality while suppressing a configuration of the device from being complicated.SOLUTION: A control part 6, when a difference is caused between count values C1 and C2 of output pulse number of encoders 33 and 32 in every prescribed pulse count period of time, controls discharge timing for inkjet heads 41K and 41C on the basis of pulse signals from the encoder 32; adjusts discharge timing for inkjet heads 41K and 41C, according to a magnitude relation between the count values C1 and C2, largeness of a difference ΔC between the count values C1 and C2 and positions in a lateral direction of the inkjet heads 41K and 41C; and controls the discharge timing for inkjet heads 41M and 41Y on the basis of pulse signals from the encoder 33 and adjusts the discharge timing for the inkjet heads 41M and 41Y, according to the magnitude relation between the count values C1 and C2, the largeness of the difference ΔC and the positions in the lateral direction of the inkjet heads 41M and 41Y.SELECTED DRAWING: Figure 1 【課題】装置構成の複雑化を抑えつつ、印刷画質の低下の軽減を図る。【解決手段】制御部6は、所定のパルスカウント期間ごとの、エンコーダ33,32の出力パルス数のカウント値C1,C2に差が生じた場合、インクジェットヘッド41K,41Cの吐出タイミングを、エンコーダ32のパルス信号に基づき制御するとともに、カウント値C1,C2の大小関係、カウント値C1,C2の差分ΔCの大きさ、およびインクジェットヘッド41K,41Cの左右方向における位置に応じて、インクジェットヘッド41K,41Cの吐出タイミングを調整し、インクジェットヘッド41M,41Yの吐出タイミングを、エンコーダ33のパルス信号に基づき制御するとともに、カウント値C1,C2の大小関係、差分ΔCの大きさ、およびインクジェットヘッド41M,41Yの左右方向における位置に応じて、インクジェットヘッド41M,41Yの吐出タイミングを調整する。【選択図】図1
Bibliography:Application Number: JP20170127343