Patent ID: 7409185
Filing Date: 2008-08-05
Classification: G03G

Abstract:
1. A sheet post-process apparatus, the apparatus comprising: a waiting tray which temporarily retains a transported sheet, 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, wherein the waiting tray makes a next sheet standby, so as not to be transported to the processing tray, until the predetermined processing of a preceding sheet on the processing tray has been completed; a storage tray which holds the bundle of sheets processed and ejected on the processing tray, wherein the waiting tray comprises: sensor means for sensing height of sheets held on the waiting tray, wherein the control means controls the drive means to adjust a projection length of the extensible tray, based on the height of sheets sensed by the sensor means.