Patent ID: 7562867
Filing Date: 2009-07-21
Classification: B65H

Abstract:
1. A sheet tray device for holding a media sheet before and after the media sheet is supplied to an image processor portion of an image processing apparatus by which an image processing operation is performed on the media sheet, said sheet tray device comprising: a first tray accommodating a first size sheet as the media sheet that is to be moved in a sheet supplying direction toward the image processor portion through a sheet entrance portion of the image processing apparatus; and a second tray accommodating a second size sheet as the media sheet that is to be moved in the sheet supplying direction toward the image processor portion through the sheet entrance portion, the second size sheet having a size smaller than a size of the first size sheet, wherein said second tray is disposed on an upper side of said first tray, and receives the media sheet that has been moved in a sheet discharging direction opposite to the sheet supplying direction, back from the image processor portion to said sheet tray device through a sheet exit portion of the image processing apparatus that is located on an upper side of the sheet entrance portion, wherein said second tray has (i) a rear guide which is substantially perpendicular to the sheet supplying direction so as to be in contact with a rear end of the second size sheet that is to be moved toward the image processor portion, and (ii) a pair of side guides which are substantially parallel to the sheet supplying direction so as to be in contact with respective side ends of the second size sheet that is to be moved toward the image processor portion, wherein said side guides have respective upper ends at which the media sheet having been moved back to said sheet tray device is received, wherein at least one of said side guides has a height that is not smaller than a height of said rear guide, wherein said second tray receives the media sheet having been moved back to said sheet tray device via a sheet discharging roller that is disposed in the sheet exit portion, and wherein said at least one of said side guides has a rear end distant from the sheet discharging roller by a distance that is larger than a distance between said rear guide and the sheet discharging roller.