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General information 1-9
5023-110
Paper
• Rough, highly textured, limp, or pre-curled papers will result in lower print quality and more frequent
paper feed failures.
• Colored papers must be able to withstand 338°F (170°C) fusing temperature.
• Preprinted forms and letterheads should be selected using guidelines in the printer User's Reference.
The chemical process used in preprinting may render some papers unsuitable for use with the printer.
• Unsuitable papers include punched, embossed, water-marked, perforated media, any kind of inkjet
paper or plastic-coated paper.
• Recycled paper less than 75 g/m
2
(20 lb) may cause unacceptable results.
The laser printing process heats paper to high temperatures of 170°C (338°F). Use only paper able to
withstand these temperatures without discoloring, bleeding, or releasing hazardous emissions. Check with
the manufacturer or vendor to determine whether the paper you have chosen is acceptable for laser
printers.
Envelopes
Should be fed with short edge first, flap down and to the right.
• If envelope wrinkling occurs, refer to the User's Reference for correct loading and stacking of
envelopes.
• All envelopes should be new, unused, and without damage.
• Envelopes with excessive curl or twist exceeding 6.0 mm, those stuck together, those with bent corners
or nicked edges, or those that interlock should not be used.
• Minimum weight: 90 g/m
2
(24 lb).
• The following envelopes should not be used:
– Envelopes with windows, holes, perforations, cutouts, or deep embossing
– Envelopes with metal clasps, string ties, or metal folding bars
– Envelopes with exposed flap adhesive when the flap is in the closed position
– Self-seal envelopes
• Under high humidity conditions (over 60%), the envelopes may seal during printing.
• For best results, print on new 90 g/m
2
(24 lb) sulfite or 25% cotton-bond envelope.
Transparencies
• Use letter (12A5940) or A4-size (12A5941) sheets only.
• Transparencies are only supported in tray 1 (standard or legal trays).
Labels
• Labels should be selected using guidelines found in the User's Reference, Complete Printer
Reference, or the Card stock & Label Guide (located at www.lexmark.com), and tested for acceptability.
• Vinyl labels are not supported.
• Labels are only supported in tray 1 (standard or legal trays).
Glossy Paper
• Use letter (12A5950) or A4-size (12A5951) sheets only.
• Glossy paper is only supported from tray 1 (standard or legal trays).