Ink jet print device and ink supply method for supplying ink to print head of the ink jet print device
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United States of America Patent
Stats
-
Feb 11, 2003
Grant Date -
Oct 11, 2001
app pub date -
Feb 12, 2001
filing date -
Feb 25, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A head is formed with a plurality of nozzles and a common ink chamber fluidly connected with the nozzles. A sub ink tank is provided above the head. Ink housed in a main ink tank is supplied into the sub ink tank through the common ink chamber when an image forming operation is not performed. At this time, air bubbles existing in the common ink chamber is brought into the sub ink tank along with the ink supplied from the main ink tank. The air bubbles collected into the sub ink tank in this manner are released into the ambient air through a valve provided to the sub ink tank.
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