Epson L1455 User Manual page 68

6. Close the paper cassette cover and gently insert the paper cassette.
Note: The envelopes may slide forward slightly as you insert the cassette. This is normal.
7. When prompted by the product's LCD screen, select Envelope #10 for the Paper Size and
Envelope for the Paper Type, and select OK.
8. Extend the output tray and open the paper stopper.
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