| 摘要 |
An ink remaining amount detecting module ( 20 ) has a support substrate ( 21 ), an information storage element ( 22 ) provided on a first surface ( 21 b) of the substrate ( 21 ), and external contact electrodes ( 24 ) provided on a second surface ( 21 c) of the substrate ( 21 ). Two through-holes ( 21 a) are formed in the substrate ( 21 ) so as to penetrate the substrate ( 21 ) from the first surface ( 21 b) to the second surface ( 21 c) . A sealing structure ( 23 ) is provided on the first surface ( 21 b) of the substrate ( 21 ) so as to cover the information storage element ( 22 ) and through-holes ( 21 a) . The sealing structure ( 23 ) is formed of a light transmissive member and is shaped like a prism. The ink remaining amount detecting module ( 20 ) is mounted on a cup portion ( 2 ) constituting a part of a housing of an ink tank so that the sealing structure ( 23 ) is exposed to an ink accommodating chamber ( 6 ).
|
