Patent attributes
A sheet processing apparatus receives sheets discharged from an image forming apparatus one after another on a binding tray to be stacked on top of another, jogs each sheet as the sheet is received on the binding tray, binds a set of the sheets on the binding tray with a binding device, and discharges the bound set of the sheets from the binding tray. Sheets received from the image forming apparatus one after another after the binding device has started binding the set of the sheets on the binding tray and before the binding tray has returned from a discharging position to a receiving position are received one after another, stacked on top another and held on a sheet holding device. The sheet holding device releases the held sheets to be fallen and received on the binding tray after the binding tray has returned to the receiving position.
