| 摘要 |
A cleaning device comprises a device case having a toner collecting space, a blade holder swingably supported in directions in which the blade holder approaches and leaves from the photosensitive drum, an elastic seal member attached to one of a wall of the toner collecting space and the blade holder, between an outer face of the wall forming the toner collecting space and the blade holder, in order to be forcibly brought into contact with one of the wall forming the toner collecting space and the blade holder, wherein the blade holder or the wall forming the toner collecting space has a protrusion that is at least partly welded into the elastic seal member, and is forcibly brought into contact with the elastic seal member.
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