| 摘要 |
A manufacturing method for a toner container provided with an opening, said method includes a filling step of filling the toner container with toner through an opening; a closing step of setting a cap member and closing the opening with the cap member, after said filling step; a sealing step of sealing the opening by vibration welding of the cap member to the toner container by a welding jig, wherein the cap member is welded to the toner container while imparting a relative movement of the welding jig relative to the toner container toward an un-welded portion.
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