Ink jet cartridge, ink jet head and printer
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United States of America Patent
Stats
-
Nov 5, 2002
Grant Date -
Mar 7, 2002
app pub date -
Aug 13, 2001
filing date -
Jul 24, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.
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Family
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Cited Art Landscape
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