Patent ID: 8364057

Claim:
A post processing apparatus placed on a floor next to an image forming apparatus also placed on the floor on a downstream side of the image forming apparatus with respect to a sheet conveyance direction, the post processing apparatus performing a post processing operation on sheets ejected from the image forming apparatus, and the post processing apparatus comprising: a plurality of joining sections by which the post processing apparatus is joinable to the image forming apparatus; wherein: each of the plurality of joining sections includes an elastic member; the plurality of joining sections include a first joining section and a second joining section individually provided on right and left sides, respectively, of the post processing apparatus in a sheet width direction perpendicular to the sheet conveyance direction when viewed in the sheet conveyance direction; the first joining section determines a first position at which the image forming apparatus is joined to the post processing apparatus and which is adjustable in the sheet width direction and in the sheet conveyance direction; and the second joining section determines a second position at which the image forming apparatus is joined to the post processing apparatus and which is adjustable in the sheet conveyance direction.