Patent ID: 7192021

Claim:
A sheet post-process apparatus, comprising: a plurality of rollers which receive sheets transferring sequentially from an MFP and convey the sheets forward; a waiting tray which is provided in a conveying path and holds some of the sheets conveyed from the rollers when a bundle of sheets needs to be post-processed; a processing tray which holds the sheets held on and conveyed from the waiting tray and sheets conveyed via the conveying path without being conveyed to the waiting tray, before the bundle of sheets are post-processed, and which has a rear end positioned upstream of a rear end of the waiting tray; a conveying mechanism which causes the sheets held on the waiting tray to fall onto the processing tray; a sheet-aligning mechanism which aligns the sheets held on the processing tray with one another, at a transverse edge and a longitudinal edge, thereby forming the bundle of sheets, the sheet-aligning mechanism including upper and lower longitudinal alignment rollers; a post-process mechanism which performs a post-process on the bundle of sheets on the processing tray; sheet-conveying means for conveying the bundle of sheets from the processing tray; and a storage tray which holds the bundle of sheets conveyed from the processing tray.