4.
Slide the edge guides outward.
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.
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