Lexmark C780, C782 manual Storing paper, Media specifications Selecting paper

Media specifications

Selecting paper

Proper paper loading helps prevent jams and ensures trouble-free printing.

To help avoid jams or poor print quality:

•Always use new, undamaged paper.

•Before loading paper, know the recommended print side of the paper. This information is usually indicated on the paper package.

•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 and Paper Weight settings are correct. (See “Paper Menu” in the Menus and Messages Guide 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.

Storing paper

Use the following guidelines to avoid paper feeding problems and uneven print quality.

•Store paper in an environment where the temperature is approximately 21°C (70°F) and the relative humidity is 40%.

•Store cartons of paper on a pallet or shelf rather than directly on the floor.

•If you store individual packages of paper out of the original carton, make sure they rest on a flat surface so the edges do not buckle or curl.

•Do not place anything on top of paper packages.

•Store paper in its original wrapper until you load it into the printer.

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/m2 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.

Storing paper

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