Patent ID: 7458667

Claim:
An ink container mounted to an inkjet recording apparatus having a mounting unit configured to be mounted with the ink container and a detecting unit configured to detect light emitted from a light-emitting unit provided to the ink container, the ink container adapted to contain ink used in the inkjet recording apparatus, the container comprising: a substrate having a light-emitting unit and a contact receiving an electrical signal supplied by the inkjet recording apparatus; a light guide unit disposed with a space to a wall; and an information storing medium storing individual information about the ink, wherein the light guide includes a light entrance unit configured to receive light from the light-emitting unit and a display light exit unit, wherein light entering through the entrance unit exits with floodlighting to outside, and wherein the information storing medium performs setting by classifying a light-emitting amount emitted from the light-emitting unit and output from the display unit via the light guide unit into a plurality of ranks, and stores the set rank information.