Lexmark 840 Printer User Manual


 
Selecting print media
44
Understanding paper and specialty media guidelines
Do not use paper that has been cut or trimmed by hand.
Do not mix media sizes, weights, or types in the same source; mixing results in jams.
Do not use coated papers unless they are specifically designed for electrophotographic printing.
Do not forget to change the Paper Size setting when using a source that does not support auto size sensing.
Do not remove trays while a job is printing or Busy appears on the operator panel.
Make sure the Paper Type, Paper Texture, and Paper Weight settings are correct. (See “Paper Menu” in the Menus
and Messages Guide located on the publications CD for detailed information about these settings.)
Make sure the paper is properly loaded in the source.
Flex paper back and forth. Do not fold or crease the paper. Straighten the edges on a level surface.
Selecting preprinted forms and letterhead
Use the following guidelines when selecting preprinted forms and letterhead paper for the printer:
Use grain long papers for best results for 60 to 90 g/m
2
weights.
Use only forms and letterhead printed using an offset lithographic or engraved printing process.
Avoid papers with rough or heavily textured surfaces.
Use papers printed with heat-resistant inks designed for use in xerographic copiers. The ink must withstand temperatures
of 230°C (446°F) without melting or releasing hazardous emissions. Use inks that are not affected by the resin in toner. Inks
that are oxidation-set or oil-based should meet these requirements; latex inks might not. When in doubt, contact the paper
supplier.
Preprinted papers such as letterhead must be able to withstand temperatures up to 230°C (446°F) without melting or
releasing hazardous emissions.
Printing on letterhead
Check with the manufacturer or vendor to determine whether the chosen preprinted letterhead is acceptable for laser
printers.
Page orientation is important when printing on letterhead. Use the following table for help when loading letterhead in the
media sources.
Media source or process Print side Top of page
500-sheet trays Single-sided printing:
Printed letterhead face-up
Duplex (two-sided) printing:
Printed letterhead face-down
Long-edge fed: Letterhead top edge
towards the front of the tray.
Short-edge fed: Letterhead top edge
towards the left of the tray.
2000-sheet dual input trays Letterhead goes toward the front of the tray.
2000-sheet high capacity feeder Single-sided printing:
Printed letterhead face-down
Duplex (two-sided) printing:
Printed letterhead face-up
Letterhead goes toward the front of the tray.
Multipurpose feeder Long-edge fed: Letterhead top edge
towards the front of the printer.
Short-edge fed: Letterhead top edge enters
last.