An image forming device includes a paper dust removal unit that removes paper dust from a photosensitive member. The paper dust removal unit includes a brush-shaped member affixed to a plate by a two-sided tape. The brush-shaped member is peeled off from the plate so as to re-use the plate and the like of the paper dust removal unit. The tensile strength of the two-sided tape is greater than the shear adhesive strength between the two-sided tape and the plate, so that the two-sided tape is prevented from tearing partway when the brush-shaped member is peeled off.