Patent ID: 7206543

Claim:
A sheet post-process apparatus, the apparatus comprising: a waiting tray which temporarily retains a transported sheet in a waiting mode, and releases a retention to drop the sheet; a processing tray which bundles sheets dropped from the waiting tray to carry out predetermined processing, and ejects the bundle of sheets; and a storage tray which holds the bundle of sheets processed and ejected on the processing tray, wherein the waiting tray comprises: a waiting tray roller which ejects a transported sheet on the storage tray; first drive means for driving the waiting tray roller so as to come into contact with the sheet or so as to be spaced from the sheet; and second drive means for rotating the waiting tray roller in a direction in which the sheet is to be ejected, and the waiting tray roller is driven by the first and second drive means, making it possible to eject the sheet from the waiting tray directly to the storage tray.