Sheet ejection device, image forming apparatus, and sheet stacking method

Abstract

A sheet ejection device includes an output tray to be stacked with a plurality of sheets. The output tray includes a first mount that mounts the sheets and a second mount that abuts on the first mount. The second mount mounts the sheets. A mover moves the first mount.

1 . A sheet ejection device comprising:
 an output tray to be stacked with a plurality of sheets,   the output tray including:
 a first mount to mount the sheets; and 
 a second mount abutting on the first mount, the second mount to mount the sheets; and 
   a mover to move the first mount.   
     
     
         2 . The sheet ejection device according to  claim 1 ,
 wherein the first mount and the second mount define a mount face to mount the sheets.   
     
     
         3 . The sheet ejection device according to  claim 1 ,
 wherein the plurality of sheets includes a sheet fixed with toner.   
     
     
         4 . The sheet ejection device according to  claim 1 ,
 wherein, as the plurality of sheets is ejected onto the output tray, the mover moves the first mount.   
     
     
         5 . The sheet ejection device according to  claim 1 ,
 wherein the first mount abuts on the second mount in a width direction of the sheets.   
     
     
         6 . The sheet ejection device according to  claim 5 ,
 wherein the mover moves the first mount in at least one of an upward direction or a downward direction with respect to a center of the output tray in the width direction of the sheets.   
     
     
         7 . The sheet ejection device according to  claim 6 ,
 wherein the mover moves the second mount in at least one of the upward direction or the downward direction with respect to the center of the output tray in the width direction of the sheets.   
     
     
         8 . The sheet ejection device according to  claim 5 ,
 wherein the width direction of the sheets is perpendicular to a sheet ejection direction in which the sheets are ejected onto the output tray.   
     
     
         9 . The sheet ejection device according to  claim 8 ,
 wherein the output tray further includes a third mount to mount the sheets,   wherein the second mount is interposed between the first mount and the third mount in the width direction of the sheets, and   wherein the mover moves the third mount.   
     
     
         10 . The sheet ejection device according to  claim 1 ,
 wherein the first mount abuts on the second mount in a sheet ejection direction in which the sheets are ejected onto the output tray.   
     
     
         11 . The sheet ejection device according to  claim 1 ,
 wherein the first mount includes a mount face to mount the sheets, the mount face moved by the mover.   
     
     
         12 . The sheet ejection device according to  claim 1 ,
 wherein the mover lifts the first mount to a position where the first mount is stepped up with respect to the second mount.   
     
     
         13 . The sheet ejection device according to  claim 1 ,
 wherein the mover includes a pivot mechanism to pivot the first mount,   the pivot mechanism including:
 a motor; 
 a pinion gear coupled with the motor; and 
 a rack gear to mesh with the pinion gear. 
   
     
     
         14 . An image forming apparatus comprising:
 an image forming device to form an image on a plurality of sheets; and   a sheet ejection device to be ejected with the sheets,   the sheet ejection device including:
 an output tray to be stacked with the sheets, 
 the output tray including:
 a first mount to mount the sheets; and 
 a second mount abutting on the first mount, the second mount to mount the sheets; and 
 
 a mover to move the first mount. 
   
     
     
         15 . A sheet stacking method comprising:
 stacking a plurality of sheets on a first mount and a second mount; and   moving the first mount.