6. Make sure the printer is
NOTE: Do not leave paper stacked in the printer for long periods os time; longer sheets of paper may become bent or curled over time. This may cause multiple sheets to feed or the paper may jam.
Remove paper from the paper exit support before the count reaches 20 sheets.
Printing On Envelopes
You can stack up to 10 envelopes in the sheet feeder. Before printing on envelopes, you need to turn on the envelope mode.
Use only commercial, number 10 envelopes, which are 9.5 x 4.1 inches (241 x 104 mm). (Other envelope sizes are not supported by this printer.)
CAUTION: Some envelopes are not recommended because they may cause jams or smears or may damage your printer:
Envelopes with windows, metal clasps, holes, perforations, cutouts, double flaps, or
TEnvelopes that are specially coated or deeply embossed. Envelopes with letters enclosed.