Patent ID: 7286792

Claim:
A sheet post-process apparatus, the apparatus comprising: a waiting tray which temporarily retains a transported sheet in a waiting mode, and releases the retention to drop the sheet; a processing tray which bundles sheets dropped from the waiting tray to carry out predetermined processing, and ejects the sheets; and a storage tray which holds the bundle of sheets processed and ejected by the processing tray, wherein the waiting tray comprises: left and right lower face support members which support left and right lower faces in a sheet transport direction during retention in the waiting mode and release the support of the left and right lower faces during release of the retention; and an upper face slash member allocated upwardly of the left and right lower face support members, the slash member slashing an upper face of the sheet transported to the waiting tray and pushing the upper face of the sheet in a direction of the processing tray to drop the sheet onto the processing tray.