Brother HL-4140CN User Manual page 23

Printing Methods
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When you have finished printing, open the back cover and reset the two grey levers their original
position.
Note
• Remove each envelope as soon as it has been printed. Stacking the envelopes may cause them to jam
or curl.
• If envelopes or thick paper gets smudged during printing set the Media Type to Env. Thick or Thicker
Paper to increase the fixing temperature.
• If the envelopes are creased after they are printed, see Improving the print quality on page 160.
• If your thick paper curls during printing, put only one sheet at a time in the MP tray and open the back cover
(back output tray) to let the printed pages exit to the back output tray.
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• (For Windows users) If DL size double flap envelopes are creased after printing, choose DL Long Edge
in Paper Size, from the Basic tab. Put a new DL size double-flap envelope in the MP tray with the longest
edge of the envelope in first, then print again.
• Envelope joints that are sealed by the manufacturer should be secure.
• All sides of the envelope should be properly folded without wrinkles or creases.
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