Sheet discharging device

Abstract

A sheet discharging device includes a sheet discharging section which discharges sheets, and a sheet discharging tray including a stacking wall portion on which discharged sheets are stacked. The stacking wall portion includes a first wall portion having a first surface which becomes higher in a direction in which sheets are discharged, and a second wall portion connected to an upstream end of the first wall portion in the sheet discharging direction and having a second surface including at least one of a horizontal surface, an inclined surface having a smaller gradient than that of the first surface, and an inclined surface having a gradient opposite to that of the first surface.

1 . A sheet discharging device comprising: 
 a sheet discharging section which discharges sheets; and    a sheet discharging tray including a stacking wall portion on which discharged sheets are stacked, the stacking wall portion comprising: 
 a first wall portion having a first surface which becomes higher in a direction in which sheets are discharged; and  
 a second wall portion connected to an upstream end of the first wall portion in the sheet discharging direction and having a second surface including at least one of a horizontal surface, an inclined surface having a smaller gradient than that of the first surface, and an inclined surface having a gradient opposite to that of the first surface.  
   
   
   
       2 . The sheet discharging device according to  claim 1 , wherein the first surface lies within an area including a position corresponding to a leading end of sheets of a size substantially half that of the largest sheet possibly discharged by the sheet discharging section when the sheets are stacked on the stacking wall portion.  
   
   
       3 . The sheet discharging device according to  claim 1 , further comprising: 
 a third wall portion placed upstream of the second wall portion in the sheet discharging direction and having a third surface which becomes higher in the sheet discharging direction; and    a fourth wall portion connected to an upstream end of the third wall portion in the sheet discharging direction and having a fourth surface including at least one of a horizontal surface, an inclined surface having a smaller gradient than that of the third surface, and an inclined surface having a gradient opposite to that of the third surface.    
   
   
       4 . The sheet discharging device according to  claim 2 , further comprising: 
 a third wall portion placed upstream of the second wall portion in the sheet discharging direction and having a third surface which becomes higher in the sheet discharging direction; and    a fourth wall portion connected to an upstream end of the third wall portion in the sheet discharging direction and having a fourth surface including at least one of a horizontal surface, an inclined surface having a smaller gradient than that of the third surface, and an inclined surface having a gradient opposite to that of the third surface.    
   
   
       5 . The sheet discharging device according to  claim 3 , wherein the third surface lies within an area including a position corresponding to a central portion of sheets of a size substantially half that of the largest sheet possibly discharged by the sheet discharging section when the sheets are stacked on the stacking wall portion.  
   
   
       6 . The sheet discharging device according to  claim 4 , wherein the third surface lies within an area including a position corresponding to a central portion of sheets of a size substantially half that of the largest sheet possibly discharged by the sheet discharging section when the sheets are stacked on the stacking wall portion.  
   
   
       7 . The sheet discharging device according to  claim 1 , wherein the first surface has an inclination which allows a sheet being discharged by the sheet discharging section to slide on the first surface.  
   
   
       8 . A sheet discharging device comprising: 
 a sheet discharging section which discharges sheets; and    a sheet discharging tray including a stacking wall portion on which discharged sheets are stacked, the sheet discharging tray comprising: 
 a projecting portion having a wall portion provided in a central portion of the sheet discharging tray in a width direction substantially orthogonal to the sheet discharging direction to raise a width-wise central portion of the sheets stacked on the sheet discharging tray, the wall portion comprising: 
 a first wall portion having a first surface which becomes higher in a direction in which sheets are discharged; and  
 a second wall portion connected to an upstream end of the first wall portion in the sheet discharging direction and having a second surface including at least one of a horizontal surface, an inclined surface having a smaller gradient than that of the first surface, and an inclined surface having a gradient opposite to that of the first surface.