5. Insert up to 10 envelopes, printable side facedown and flap edge left, as shown.
Note: Make sure the envelope is not sticking out from the end of the cassette.
6. Slide the edge guides against the envelopes, but not too tightly.
Note: Make sure the envelopes are under the tabs on the edge guides.
7. Keep the cassette flat as you insert it.
Note: The output tray opens automatically when you print.
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