摘要 |
Provided are an ink refill cartridge capable of supplying new ink to a writing implement whose ink is used up, and a writing implement using the ink refill cartridge. The ink refill cartridge has an ink tank (10) having an ink discharge opening (12b1), ink (M) placed in the ink tank (10), and a closure cap (20) detachably attached to the ink tank (10) so as to close the ink discharge opening (12b1). To attach the ink tank (10) to the writing implement, a removable tail plug (50) of the implement is removed, and the tank (10) is fitted in a rear end opening of a shaft tube of the implement with the ink discharge opening (12b1) communicated to the rear end opening. |