Output Tray - Epson AcuLaser C9100 Reference Manual

Output tray

The output tray is located on the top of the printer. Since printouts
are output face-down, this tray is also referred to as the face-down
tray. This tray can hold up to 500 sheets.
Note:
When you output the large size paper such as A3, raise the stopper to
prevent your printouts from slipping off the printer.
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Paper Handling