| 摘要 |
An ink cartridge includes a first member that alters a path of a first signal originating at a first position, a second member that alters a path of a second signal when the second member is aligned with each of a second position and a third position, and when the second member alters the path of the second signal, the second member prevents at least a first portion of the second signal from reaching the third position. The second signal originates at the second position and has a first intensity, and the first portion of the second signal has a second intensity. A difference between the first intensity and the second intensity is less than a predetermined intensity value. A third member alters a path of the second signal when the third member is aligned with the second position and the third position. |
