Lexmark E250DN User's Guide - Page 46

Selecting print media Transparencies • Use transparencies designed specifically for laser printers. Transparencies must be able to withstand temperatures of 210°C (410°F) without melting, discoloring, offsetting, or releasing hazardous emissions. We recommend Lexmark laser printer transparencies: part number 70X7240 for letter-size transparencies; part number 12A5010 for A4-size transparencies. • To prevent print-quality problems, avoid getting fingerprints on the transparencies. • Before loading transparencies, fan the stack to prevent sheets from sticking together. Envelopes • Use envelopes made from 20lb (75g/m2) bond paper. • Do not use envelopes that: - Have excessive curl - Are stuck together - Are damaged in any way - Contain windows, holes, perforations, cutouts, or embossments - Use metal clasps, string ties, or metal folding bars - Have postage stamps attached - Have any exposed adhesive when the flap is in the sealed position • Use envelopes that can withstand temperatures of 210°C (410°F) without: - sealing - excessive curling - wrinkling - releasing hazardous emissions If you have any doubts about the envelopes you are considering, check with the envelope supplier. • Adjust the paper guides to fit the width of the envelope. • Load only one envelope at a time. • A combination of high humidity (over 60%) and high printing temperatures may seal the envelopes. Labels • Do not use labels that have exposed adhesive on the sheets. • Do not print a large number of labels continuously. • Do not use vinyl labels. • Use labels that can withstand temperatures of 210°C (410°F) without sealing, excessive curling, wrinkling, or releasing hazardous emissions. Label adhesives, face sheet (printable stock), and topcoats must also be able to withstand 25 pounds per square inch (psi) (172kilopascals) pressure. 46