6.Insert the paper or envelopes into the printer. If you’re loading envelopes, insert them as shown. You can insert up to 10 envelopes. The number of sheets of heavy paper depends on the thickness of the paper.
Adjust the rear and left edge guides so the paper or envelopes feed straight into the paper path.
7.From your software program, choose Page Setup in the File menu and select the appropriate paper or envelope size if you are not using letter size.
Once you select the paper size and change any appropriate printer settings, choose Print in the File menu to print on the envelopes or paper you loaded.
After you are finished printing on heavy paper or envelopes, return the paper thickness lever to its original position.