Patent ID: 7703768

Claim:
An image forming system, comprising: a plurality of paper sheet processing apparatuses including an image forming apparatus that forms an image on a paper sheet; and a relay conveyance apparatus that is installed between a former paper-sheet processing apparatus and a latter paper-sheet processing apparatus, both included in the plurality of paper sheet processing apparatuses, so as to relay the paper sheet from the former paper-sheet processing apparatus to the latter paper-sheet processing apparatus; wherein the relay conveyance apparatus includes: a relay conveyance unit, disposed at an upper space of the relay conveyance apparatus and provided with a paper sheet inlet and a paper sheet outlet, to convey the paper sheet introduced from the paper sheet inlet therein and eject the paper sheet outside from the paper sheet outlet; and a coupling unit that is structured as an independent body being separate from the relay conveyance unit and installed just below the relay conveyance unit so as to create an intermediate space into which the relay conveyance unit can be mounted; wherein the coupling unit is provided with fixing members for securely fixing the former paper-sheet processing apparatus and the latter paper-sheet processing apparatus to the relay conveyance apparatus, in such a manner that the paper sheet inlet and the paper sheet outlet substantially coincide with a paper sheet outlet of the former paper-sheet processing apparatus and a paper sheet inlet of the latter paper-sheet processing apparatus, respectively.