CPC B41J 2/1753 (2013.01) | 10 Claims |
1. An elongated cartridge configured to store a liquid comprising:
a first portion including an outwardly facing surface and provided with an inserting portion;
a second portion opposite from the first portion with respect to a longitudinal direction of the cartridge; and
a third portion connecting the first portion and the second portion with each other and having a cylindrical shape,
wherein the third portion includes:
a first cylindrical portion provided with a plurality of pad electrodes, and
a second cylindrical portion provided with a groove on an outer surface thereof.
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