发明授权
- 专利标题： Ink jet recording head controlling diameter of an ink droplet
- 专利标题（中）： 喷墨记录头控制墨滴的直径
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申请号： US09221141申请日： 1998-12-28
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公开(公告)号： US06241345B1公开(公告)日： 2001-06-05
- 发明人: Toyoji Ushioda
- 申请人： Toyoji Ushioda
- 优先权： JP9-366923 19971226
- 主分类号： B41J2938
- IPC分类号： B41J2938
摘要：
An ink jet recording head has a plurality of pressure chambers each driven by a piezoelectric element for ejection of ink droplets having different diameters from a nozzle. The drive voltage for the piezoelectric element has a controlled rise-time, controlled pulse period, and a controlled fall-time for ejecting ink droplets having different diameters and a constant velocity.
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