Patent ID: 7400846

Claim:
An image forming apparatus comprising: an apparatus main body; a photoconductive drum including a drum shaft, the photoconductive drum arranged removably in the apparatus main body; a transfer roller arranged to contact the photoconductive drum to define a nip portion and transfer a toner image on a surface of the photoconductive drum onto paper introduced into the nip portion; a pair of guide supporting brackets including two paper transportation guides, the pair of guide supporting brackets respectively mounted on end portions of the drum shaft so as to be capable of being swung about the drum shaft as a center, and the two paper transportation guides are arranged with a predetermined interval therebetween on the pair of the guide supporting brackets; and an urging member arranged in the apparatus main body such that, in a state in which the photoconductive drum is installed in the apparatus main body, swinging ends of the guide supporting brackets are pressed against the transfer roller by the urging member and the two paper transportation guides are positioned at a predetermined position in proximity of an upstream side of the nip portion in a paper transportation direction.