158 Print Media Guidelines• Do not mix print media sizes, weights, or types in the same source. Thismay result in a paper jam.• Do not remove the PSI while a job is printing.• Ensure that the paper is properly loaded in the MPF or PSI.• Flex paper back and forth, and then fan them. Straighten the edges of thestack on a level surface.Selecting Preprinted Media and LetterheadWhen selecting preprinted media and letterhead paper for the printer:• Use grain long paper for best results.• Use only forms and letterhead printed using an offset lithographic orengraved printing process.• Select paper that absorb ink, but do not bleed.• Avoid paper with rough or heavily textured surfaces.• Use paper printed with heat-resistant inks designed for use in xerographiccopiers. The ink must withstand temperatures of 225°C (437°F) withoutmelting or releasing hazardous emissions.• Use inks that are not affected by the resin in toner or the silicone in thefuser. Inks that are oxidation-set or oil-based should meet theserequirements; latex inks might not. If you are in doubt, contact your papersupplier.Printing on LetterheadCheck with the manufacturer or vendor to determine whether the pre-printedletterhead you have selected is acceptable for laser printers.
