| 摘要 |
PROBLEM TO BE SOLVED: To provide for a loading of sheet at large capacity while sorting it. SOLUTION: An upper stage sheet delivery tray 5 is of a movable type. A boss part 5a and a boss part 5b of the upper stage sheet delivery tray 5 are fitted into two slits 8a and 8b provided in a device main body, respectively, and a spring 7 as an energizing means is disposed in those areas other than a sheet passing width for the upper stage sheet delivery tray 5. If a sheet material exceeding a predetermined amount is loaded on the upper stage sheet delivery tray 5, the upper stage sheet delivery tray 5 is moved downward along the slits 8a and 8b by its own weight.
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