Patent ID: 8136812
Filing Date: 2012-03-20
Classification: B42B,B42C,B65H

Abstract:
1. A sheet stacking device comprising: a sheet discharging port through which sheets are sequentially carried out; a sheet discharging path connected to said sheet discharging port, for feeding sheets therefrom; tray means disposed downstream of said sheet discharging path; a sheet-end regulating member provided on the tray means; conveying means for transporting toward said sheet-end regulating member sheets carried out onto the tray means through the sheet discharging port, said conveying means configured so as, in conveying toward said sheet-end regulating member a sheet having been carried in onto said tray means, to impart conveyance force to the sheet for a running time predetermined according to the nature of the sheet's surface material to keep the sheets orderly stacked on said tray means; conveyance control means for controlling said conveying means to impart the conveyance force to the sheet for the predetermined running time; and sensor means provided in said sheet discharging path and comprising a sensor for detecting the leading and trailing ends of a moving sheet, said sensor means therein for detecting pass time of a sheet being conveyed on said sheet discharging path, and outputting a pass-time determining output signal to said conveyance control means; wherein