Patent ID: 8052136

Claim:
A sheet conveyance relay unit comprising: a convergence unit including: a convergence section comprising a plurality of sheet receiving sections that are respectively connected to a plurality of image forming apparatuses to receive recording sheets, wherein sheet conveyance paths of the plurality of the sheet receiving sections are converged; and a first common sheet-conveyance section which is adapted to convey the recording sheets from the convergence section to a sheet feeding outlet; and a divergence unit including: a second common sheet-conveyance section which is adapted to convey the recording sheets conveyed from the sheet feeding outlet; a plurality of sheet feed-out sections which are respectively connected to a plurality of post-finishing apparatuses; and a divergence section which sorts the recording sheets conveyed by the second common sheet-conveyance section onto the plurality of the sheet feed-out sections; wherein at least one of the sheet receiving sections among the plurality of the sheet receiving sections is adapted to reverse a recording sheet two times, to feed out said recording sheet to the convergence section.