To prevent print quality problems, avoid getting fingerprints on the transparencies.

Before loading transparencies, fan the stack to prevent sheets from sticking together.

We recommend Lexmark part number 12A8240 for letter-size and Lexmark part number 12A8241 for A4-size transparencies.

Using envelopes

Print samples on the envelopes being considered for use before buying large quantities.

When printing on envelopes:

From Print Properties or the printer control panel, set the Paper Size and Paper Type.

Use envelopes designed specifically for laser printers. Check with the manufacturer or vendor to ensure the envelopes can withstand temperatures up to 180°C (356°F) without sealing, wrinkling, curling excessively, or releasing hazardous emissions.

For the best performance, use envelopes made from 90 g/m2 (24 lb bond) paper. Use up to 105 g/m2 (28 lb bond) weight for envelopes as long as the cotton content is 25% or less. All-cotton envelopes must not exceed

90 g/m2 (24 lb bond) weight.

Use only new envelopes.

If wrinkling or smeared print occurs, use the Print Properties to rotate the orientation of the envelope by 180 degrees, and then try printing again.

To optimize performance and minimize jams, do not use envelopes that:

Have excessive curl or twist

Are stuck together or damaged in any way

Have windows, holes, perforations, cutouts, or embossing

Have metal clasps, string ties, or folding bars

Have an interlocking design

Have postage stamps attached

Have any exposed adhesive when the flap is in the sealed or closed position

Have bent corners

Have rough, cockle, or laid finishes

Adjust the width guide to fit the width of the envelopes.

Load only one size of envelope at a time. Envelopes may only be loaded in the multipurpose feeder. Load them with the flap up and to the left of the multipurpose feeder.

Paper and specialty media guide

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Lexmark 560n manual Using envelopes