Liquid discharge method, head, and apparatus which suppress bubble growth at the upstream side
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United States of America Patent
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Dec 24, 2002
Grant Date -
N/A
app pub date -
Aug 31, 2000
filing date -
Sep 3, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid discharging method for a liquid discharge head having a plurality of discharge ports and a plurality of liquid flow paths communicated always with each of the discharge ports at one end, each having a bubble generating area, a bubble generating unit, a plurality of liquid supply ports, and a movable member supported with a minute gap to the liquid supply port on the liquid flow path side, and provided with a free end. The area of the movable member is surrounded at least by the free end portion and both sides continued therefrom are made larger than the opening area of the liquid supply port facing the liquid flow path. A period for the movable member is set to close and essentially cut off the opening area during the period from the application of the driving voltage to the bubble generating unit.
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