Patent ID: 9164430
Filing Date: 2015-10-20
Classification: G03G

Abstract:
1. A developer container comprising: a developer chamber, provided with an opening, for accommodating developer; a rotatable member rotatably supported in said developer chamber; and a sealing member for being removed at the opening by being wound up by said rotatable member, said sealing member being provided in said developer chamber and including a first end portion connected to said rotatable member and a second end portion sealing the opening, wherein the opening is sealed by bonding said sealing member along an edge of the opening, wherein said developer container includes a first bonding portion provided upstream of the opening and a second bonding portion provided downstream of the opening with respect to an unsealing direction of said sealing member, and wherein a peeling-off force for peeling off said sealing member at a predetermined angle is larger at said first bonding portion than at said second bonding portion.