Burns, Doane, Swecker & Mathis
Sheet storing apparatus
 Disclosed is a sheet storing apparatus with a sheet tray which is movable up and down. When the tray moves down to a position which is specified according to the sheet size, fullness of the sheet tray is judged. The sheet storing apparatus has a sheet sensor for detecting a sheet on the tray and a top surface sensor for detecting the upper surface of the tray on which sheets are to be stacked or the top surface of a sheet stack on the tray being at a specified position. A specified time after the sheet sensor detects no sheets, the tray starts moving up, and the upward movement of the tray is stopped when the top surface sensor generates a detection signal. The sheet storing apparatus further has a paddle wheel for aligning sheets transported onto the tray. A specified time after the top surface sensor generates a detection signal in a situation that the sheet sensor detects a sheet, the tray starts moving down. 
Minolta Camera Kabushiki Kaisha
B Y B B B
B65H Y10S B65H B65H B65H
additional additional inventional inventional inventional
Hiroki Kiyoshi
Yamashita Emori