Patent ID: 7472901
Filing Date: 2009-01-06
Classification: B65H,G03G

Abstract:
1. A sheet processing apparatus comprising: a sheet holding device capable of storing supplied sheets; a first sheet stacking tray on which sheets stored by said sheet holding device or sheets passed without stopping at said sheet holding device are stacked and on which the sheets are subjected to processing; a second sheet stacking tray on which the sheets discharged from said first sheet stacking tray are stacked; a sheet conveying device for conveying the sheets stored in said sheet holding device and the sheets stacked on said first sheet stacking tray together and for stacking the sheets stored in said sheet holding device onto said first sheet stacking tray after the sheet stacked on said first sheet stacking tray are discharged onto said second sheet stacking tray; and a controller for controlling said sheet conveying device when a succeeding sheet is not supplied to said sheet holding device for a predetermined time, in such a manner that the sheets stacked on said first sheet stacking tray are discharged onto said second sheet stacking tray and the sheets stored in said sheet holding device are stacked onto said first sheet stacking tray.