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Title:
METHOD FOR EJECTING LIQUID
Document Type and Number:
Japanese Patent JP3787507
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To eject liquid continuously at a high frequency using a liquid ejection head having a movable member 11.
SOLUTION: A bubble 40 formed in order to eject a first drop 66a grows significantly to the ejection opening 4 side when the movable member 11 closes the common liquid chamber 6 side substantially in the bubble forming process and disappears on the common liquid chamber 6 side when the movable member 11 opens a channel 3 on the common liquid chamber 6 side in the bubble extinguishing process thus leaving a bubble only on the ejection opening 4 side of a heater 10. Since the bubble 40 has been extinguished on the common liquid chamber 6 side under that state, the common liquid chamber 6 has been refilled with a constant volume of liquid up to the ejection opening 4 side of a heater 10 and since the bubble 40 has not yet been extinguished completely, the meniscus is located relatively closely to the liquid ejection plane. When ejection of a second drop 66b is started from that state, liquid can be ejected well continuously at a short interval.


Inventors:
Ishinaga, Hiroyuki
Misumi, Yoshinori
Tanetani, Yoichi
Sugiyama, Hiroyuki
Sugama, Sadayuki
Application Number:
JP2001000218310
Publication Date:
June 21, 2006
Filing Date:
July 18, 2001
Export Citation:
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Assignee:
CANON INC
International Classes:
B41J2/05; B41J2/205; (IPC1-7): B41J2/05; B41J2/205
Domestic Patent References:
JP2000062181A
Attorney, Agent or Firm:
宮崎 昭夫
金田 暢之
伊藤 克博
石橋 政幸