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(11) | EP 0 805 033 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Liquid accommodating container, ink jet cartridge having said liquid accommodating container and ink jet apparatus having said ink jet cartridge |
(57) A liquid accommodating container is connected to an ink jet head and accommodates
a liquid supplied to said ink jet head. The container comprises: a partition (215)
for dividing said liquid accommodating container into having a first chamber (203)
and a second chamber (204), wherein said first chamber (203) is accommodated with
a negative pressure generating member and has a supply portion for supplying the liquid
to said head and an atmosphere communicating section (206, 208) communicated with
an atmospheric air, said second chamber (204) is communicated with said first chamber
(203) through said atmosphere communicating section (206, 208) and substantially sealed
except said atmosphere communicating section (206, 208), said second chamber (204)
accommodating the liquid to be supplied to said first chamber (203), and a crossing
area between walls (215) forming said first chamber (203) being curved (210). |