Toner cartridge

摘要

A toner cartridge includes an inner tubular container having a toner discharge opening and accommodating a toner; an outer tubular case having a toner passage opening corresponding to the toner discharge opening, and being fitted around the inner tubular container relatively rotatably; and a seal member having a sealing portion for covering the toner discharge opening, the sealing portion being strippably bonded to the outer peripheral surface of the inner tubular container, and an action portion formed as a continuum of the sealing portion and having a front end part secured to the outer tubular case. The sealing portion of the seal member has a longitudinal bond portion and a peripheral bond portion defined along the surroundings of the toner discharge opening, and a cut groove provided inwardly of the peripheral bond portion at the peel start side end part thereof.