Liquid supplying apparatus and liquid ejecting apparatus
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United States of America Patent
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Apr 9, 2013
Grant Date -
Feb 2, 2012
app pub date -
Jul 29, 2011
filing date -
Jul 30, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid supplying apparatus includes: a pressure applying device applying pressure to the liquid inside a supply flow channel connected to a liquid supply object; a pressure buffering unit including a deformable or movable partition separating a liquid chamber connected to the supply flow channel and a gas chamber; a gas flow channel switching device connecting and disconnecting the gas chamber and a gas storage unit; an atmosphere connection channel switching device connecting and disconnecting the gas storage unit to and from the atmosphere; a switching controlling device controlling operations of the gas flow channel switching device and the atmosphere connection channel switching device during initial position adjustment of the partition and during pressurization of the liquid supply object; and a pressure controlling device controlling the pressure applying device in response to the operations of the gas flow channel switching device and the atmosphere connection channel switching device.
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