The Envelope Feeder The optional Envelope Feeder enables loading of up to 75 envelopes. Installing the Envelope Feeder Attention: To avoid paper jams, make sure no jobs are printing when you
start this procedure. If necessary, press the Online key to take the printer
offline.
1.   Power off and unplug the printer.
2.   Open the auxiliary tray. Chapter 8. Installing Optional Printer Features 167