| 摘要 |
<p>PROBLEM TO BE SOLVED: To always maintain stable behavior of discharge paper by moving paper discharge side fences between a small size position close to the inside in the discharge paper width direction and a large size position close to the outside according to the paper sheet size, and setting the flow of air generated at discharge paper falling time almost constant. SOLUTION: A central groove 206 in a central part and a pair of grooves 205a and 205b in the shape of sandwiching it, are formed in a paper discharge tray 52. A pair of these grooves 205a and 205b have a role to guide respective paper discharge side fences 201a and 201b between a small side position and a large size position, and are formed divergently in an almost bottom opened V letter shape. Discharge paper guide surfaces 201c to align discharge paper in the discharge paper width direction Y, are provided on the respective paper discharge side fences 201a and 201b, and opening parts 201d to straighten the flow of air at discharge paper alignment time are opened by plural places. The respective paper discharge side fences 201a and 201b can move between the small size position and the large size position while the respective discharge paper guide surfaces 201c are maintaining a condition in parallel to the paper discharge direction X according to the paper sheet size.</p> |
