Lexmark MX310dn User Manual page 20

Additional printer setup
3
Pull out the tray from the base.
4
Remove any packing material from inside the tray.
5
Insert the tray into the base.
6
Place the tray near the printer.
7
Align the printer with the tray, and then slowly lower the printer into place.
Note: Optional trays lock together when stacked.
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