Patent ID: 9188906
Filing Date: 2015-11-17
Classification: G03G

Abstract:
1. A cartridge comprising: a toner chamber, provided with an opening, for accommodating a toner; an unsealing member for unsealing the opening, said unsealing member not being manually operated; and a seal member including (i) a sealing portion, elongated in a longitudinal direction of said cartridge, for unsealably sealing the opening and (ii) a mounting portion for being mounted on said unsealing member to unseal the opening, wherein the sealing portion includes a first sealing portion located at a longitudinal end portion and a second sealing portion located at a longitudinal central portion, and wherein, with respect to an unsealing direction crossing the longitudinal direction, a length between the first sealing portion and the mounting portion of said seal member is shorter than a length between the second sealing portion and the mounting portion.