3.   Remove the gear cover. Save it for later use. 4.   Press the Envelope Feeder into the printer until it stops. 5.   Load envelopes. See “Loading the Envelope Feeder” on page 43.
6.   Make sure you update your printer driver to indicate the new option is installed. Removing 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. 168    Infoprint 21: User’s Guide