Ink jet cartridge, ink jet head and printer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 11, 2001
Issued Date -
N/A
app pub date -
Jan 13, 1999
filing date -
Jul 24, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet cartridge has a first chamber for accommodating a negative pressure producing material and having an air communication part for communication with ambient air, and a second chamber, substantially closed except for a liquid communication part, in communication with the first chamber, which second chamber contains a reservoir of ink to be supplied to the first chamber. The negative pressure producing material in the first chamber is retracted from the liquid communication part.
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Family
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Cited Art Landscape
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