• Page orientation is important when printing on letterhead. For information on how to load letterhead, see:– “Loading the standard or optional 250-sheet or 550-sheet tray” on page 54– “Loading the 2000-sheet tray” on page 57– “Loading the multipurpose feeder” on page 60Tips on using transparenciesPrint samples on the transparencies being considered for use before buying large quantities.When printing on transparencies:• Feed transparencies from a 250-sheet tray, a 550-sheet tray, or the multipurpose feeder.• Use transparencies designed specifically for laser printers. Check with the manufacturer or vendor to ensuretransparencies are able to withstand temperatures up to 230°C (446°F) without melting, discoloring, offsetting,or releasing hazardous emissions.• Use transparencies that are 138–146 g/m 2 (37–39 lb. bond) in weight.• To prevent print quality problems, avoid getting fingerprints on the transparencies.• Before loading transparencies, fan the stack to prevent sheets from sticking together.Tips on using envelopesPrint samples on the envelopes being considered for use before buying large quantities.When printing on envelopes:• Feed envelopes from the multipurpose feeder or the optional envelope feeder.• Set the Paper Type to Envelope, and select the envelope size.• Use envelopes designed specifically for laser printers. Check with the manufacturer or vendor to ensure theenvelopes can withstand temperatures up to 230°C (446°F) without sealing, wrinkling, curling excessively, orreleasing hazardous emissions.• For the best performance, use envelopes made from 90 g/m2 (24 lb bond) paper. Use up to 105 g/m 2 (28 lb bond)weight for envelopes as long as the cotton content is 25% or less. All-cotton envelopes must not exceed90 g/m 2 (24 lb bond) weight.• Use only new envelopes.• To optimize performance and minimize jams, do not use envelopes that:– Have excessive curl or twist– Are stuck together or damaged in any way– Have windows, holes, perforations, cutouts, or embossing– Have metal clasps, string ties, or folding bars– Have an interlocking design– Have postage stamps attached– Have any exposed adhesive when the flap is in the sealed or closed position– Have bent corners– Have rough, cockle, or laid finishes• Adjust the width guide to fit the width of the envelopes.Note: A combination of high humidity (over 60%) and the high printing temperature may wrinkle or seal envelopes.Printing77