B710, B720, B730 User’s Guide > 24Special Media Types*No duplexng+ Half speed** If you do not get satisfactory results using Thick1 or Thick2,try using Thick3 for better results.Note:The fuser temperature progression (lowest to highest) is:Transparency > Thin > Thick3 > Normal > Thick1 > Thick2Media Fuser Setting* Exit PathTransparency*+ Transparency Rear onlyPre-Punched Normal Top or RearLetter Head orPre-PrintedNormal Top or RearLabels* Thick1** Rear onlyCardstock* Thick2**(43-58 lb. US Bond,160-216 g/m2)Rear onlyPostcards Thick1**(28-43 lb. US Bond,106-159 g/m2)Rear onlyEnvelopes* + Thick3 Rear onlyThin Thin Top or Rear