Patent ID: 8550607

Claim:
An ink container comprising: a body configured to retain ink; a latch lever which has a fixed end connected to the body and a free end, the latch lever being movable between a first position in which a distance between the free end and the body is a first distance and a second position in which a distance between the free end and the body is a second distance smaller than the first distance; a light emitting portion which is positioned closer to the fixed end than to the free end; and a light guide member provided on the latch lever and movable in conjunction with the latch lever, the light guide member (i) having a light receiving portion configured to receive light from the light emitting portion when the latch lever is at the second position and a light-outputting portion configured to output the light and (ii) being configured to guide the light from the light receiving portion to the light-outputting portion, wherein a distance between the light receiving portion and the light emitting portion when the latch lever is at the second position is smaller than a distance between the light receiving portion and the light emitting portion when the latch lever is at the first position.