Ink jet cartridge, ink jet head and printer

Details Ink jet cartridge, ink jet head and printer Ink jet cartridge, ink jet head and printer

B - Operations, Transporting

41

J

B41J 2/175 (2006.01) B41J 2/01 (2006.01)

Patent

CA 2274878

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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