NOTICE: Never use envelopes with windows, or coated linings. These lead to paper jams and can cause damage to the printer.
NOTE: If you do not load envelopes in the MPF right after they have been removed from the packaging, they may bulge. To avoid jams, flatten them as shown below when loading them in the MPF.
NOTE: If envelopes are still not fed correctly, add some bending to the flap of the envelopes as shown in the following illustration.
The amount of the bending shall be 5 mm (0.20 inches) or less.
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