Use these instructions to load envelopes.
Lift the output tray.
Slide the paper guides out as far as possible.
Insert the envelopes print-side down and load according to the graphic.
Make sure the stack of envelopes does not exceed the line marking in the tray.
NOTE: Do not load paper envelopes while the printer is printing.
Slide the paper guides in the tray to adjust them for the envelope size that you have loaded.
Lower the output tray.
Pull out the output tray extension.