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发明授权
CN106457823B 喷墨头的驱动方法以及喷墨记录装置 有权

喷墨头的驱动方法以及喷墨记录装置
摘要：
本发明的目的在于提供一种即使在1个像素周期内排出多个液滴而在介质上形成大点，也能够在抑制生产率降低的同时抑制产生附属物、并能够进行高品质的图像记录的喷墨头的驱动方法以及喷墨记录装置，通过对压力发生单元施加驱动信号而对压力室内的液体赋予用于排出的压力来使液滴从喷嘴排出的时的驱动信号包括排出液滴的第1驱动信号(PA)和与第1驱动信号(PA)相比相对低速地排出大的液滴的第2驱动信号(PB)这至少2种驱动信号，通过在1个像素周期内施加N个第2驱动信号(PB)，至少最后施加第1驱动信号(PA)，从而使液滴从同一喷嘴排出，在介质上形成基于由液滴构成的点的像素，并且，N是1以上的整数。
摘要（英）：

The purpose of the present invention is to provide an inkjet head driving method and an inkjet printing apparatus that can suppress reduction of productivity while limiting occurrence of satellites and are capable of high quality image printing even when multiple droplets are discharged in a one-pixel period to form a large dot on the medium. The drive signal, when applying a discharging pressure on a liquid in a pressure chamber by applying the drive signal on a pressure-generating means to discharge droplets from a nozzle, comprises at least two kinds of drive signals, a first drive signal (PA) for discharging a droplet and a second drive signal (PB) for discharging a large droplet at a relatively slower speed than the first drive signal (PA). Pixels of dots obtained from droplets on a medium are formed by applying N of the second drive signals (PB) and applying the first drive signal (PA) at least at the end of a one-pixel period to discharge droplets from the same nozzle; N is an integer of at least 1.

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