Burns, Doane, Swecker & Mathis
Copying apparatus having a device for holding sheets
 A copying apparatus includes an image forming device, a sheet reversal mechanism, and a sheet holding device having a tray, each of the components being independently separable. The sheet reversal mechanism transports to the tray each sheet either in face-up condition or with its face turned downward. The tray is lowered according to the volume of sheets loaded thereon and is caused to shift on a horizontal plane under a specified timing control. The lowering of the tray is effected through detection by a sensor of the volume of sheets loaded on the tray. After each such lowering, any downward movement of the tray is inhibited until a next sheet is loaded on the tray. 
Minolta Camera Kabushiki Kaisha
G B G G
G03G B65H G03G G03G
inventional inventional inventional additional
Akiyoshi Hirokazu Keichi Toshio
Johdai Yamada Kinoshita Matsui