Invention Grant
US07673953B2 Liquid ejection apparatus for suppressing a decrease in speed of liquid droplets which are discharged from adjacent nozzles during the same discharge period 失效
用于抑制在相同放电期间从相邻喷嘴排出的液滴速度降低的液体喷射装置

  • Patent Title: Liquid ejection apparatus for suppressing a decrease in speed of liquid droplets which are discharged from adjacent nozzles during the same discharge period
  • Patent Title (中): 用于抑制在相同放电期间从相邻喷嘴排出的液滴速度降低的液体喷射装置
  • Application No.: US11754114
    Application Date: 2007-05-25
  • Publication No.: US07673953B2
    Publication Date: 2010-03-09
  • Inventor: Noriaki Yamashita
  • Applicant: Noriaki Yamashita
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Workman Nydegger
  • Priority: JP2006-145844 20060525
  • Main IPC: B41J29/38
  • IPC: B41J29/38 B41J2/205
Liquid ejection apparatus for suppressing a decrease in speed of liquid droplets which are discharged from adjacent nozzles during the same discharge period
Abstract:
A liquid ejecting apparatus including a pressure generating unit capable of changing a pressure of liquid contained in the pressure chamber, a liquid ejecting head capable of discharging liquid droplets from a nozzle opening by actuating the pressure generating unit, a passage extending from a common liquid chamber through a pressure chamber to the nozzle opening and a driving signal generating unit that repeatedly generates a plurality of driving signals causing the liquid droplets to be discharged by actuating the pressure generating unit. In order to prevent the vibration resulting from a first driving pulse sent to a first pressure generating unit from interfering with the discharge in an adjacent pressure chamber, a second driving signal including a second discharge pulse, is generated at a period of time after to the first discharge pulse corresponding to a characteristic vibration period of the liquid contained in the pressure chamber.
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