B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 2/175 (2006.01)
Patent
CA 2241801
An ink cartridge connectable to an ink jet recording head of an ink jet recording apparatus includes a first chamber containing negative pressure producing material and having an ink outlet connectable to the ink jet head to supply ink from the cartridge to the ink jet head and an air vent for allowing air into the cartridge; and a second chamber having a communication port and inner surfaces, said communication port being disposed at a lower part of said cartridge when the cartridge is in use and said inner surfaces intersecting at an intersection portion, said second chamber communicating with the first chamber by means of said communication port and providing an ink reservoir for said first chamber, wherein said intersection portion is rounded.
Abe Tsutomu
Higuma Masahiko
Ikeda Masami
Kashino Toshio
Okazaki Takeshi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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