Dell 3130cn Color Laser Printer - Manual (Page 103)

5. Ensure the type setting for the MPF is set to the correct value for the print media you have loaded.
6. Select print media source, size, and type in your software program and select the print media size and type on the
printer operator panel.
Loading an Envelope
To load envelopes in the MPF, insert the envelopes with the flaps closed and the short-edge of the envelopes facing into
the printer. Orient the print side facing down and slide the envelope into the entry slot. You can load envelopes up to the
maximum fill line in the tray at one time.
When Loading Envelope#10, Monarch, or DL
When Loading C5