| abstract |
An ink tank having at least one solid type semiconductor device arranged therefor, comprising: energy converting means for converting energy from the outside; and operating means operated by energy converted by said energy converting means, wherein the ink tank is configured to be mounted on an ink jet recording apparatus which is provided with photosensitive means for receiving light emitted by light emitting means of said solid type semiconductor device arranged in said ink tank, and transmitted through ink contained in said ink tank. |