Lexmark Pro5500 Series, Service Manual

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General information
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Selecting preprinted forms and letterhead
Use these guidelines when selecting preprinted forms and letterhead:
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Use grain long for 60 to 176 g/m2 weight paper.
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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 be able to
withstand temperatures up to 200°C (392°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 generally 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 200°C (392°F) without
melting or releasing hazardous emissions.
Storing paper
Use these paper storage guidelines to help avoid jams and uneven print quality:
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For best results, store paper where the temperature is 21°C (70°F) and the relative humidity is 40%. Most
label manufacturers recommend printing in a temperature range of 18 to 24°C (65 to 75°F) with relative
humidity between 40 and 60%.
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Store paper in cartons when possible, on a pallet or shelf, rather than on the floor.
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Store individual packages on a flat surface.
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Do not store anything on top of individual paper packages.
Using recycled paper and other office papers
As an environmentally conscious company, Lexmark supports the use of recycled office paper. In 1998,
Lexmark presented to the US government a study demonstrating that recycled paper produced by major mills in
the US fed as well as non-recycled paper. However, no blanket statement can be made that all recycled paper
will feed well. Lexmark consistently tests its printers with recycled paper (20–100% post-consumer waste) and a
variety of test paper from around the world, using chamber tests for different temperature and humidity
conditions. Lexmark has found no reason to discourage the use of today's recycled office papers, but generally
the following property guidelines apply to recycled paper.
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Low moisture content (4–5%)
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Suitable smoothness (100–200 Sheffield units, or 140–350 Bendtsen units, European)
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Suitable sheet-to-sheet coefficient of friction (0.4–0.6)
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Sufficient bending resistance in the direction of feed
Recycled paper, paper of lower weight (<60 g/m2 [16 lb bond]) and/or lower caliper (<3.8 mils [0.1 mm]), and
paper that is cut grain-short for portrait (or short-edge) fed printers may have lower bending resistance than is
required for reliable paper feeding. Before using these types of paper for inkjet printing, consult your paper
supplier. Remember that these are general guidelines only and that paper meeting these guidelines may still
cause paper feeding problems in any inkjet printer (for example, if the paper curls excessively under normal
printing conditions).