Lexmark X850e User Guide

Use envelopes that can withstand temperatures of 230°C (446°F) without sealing, excessive curling, wrinkling, or 
releasing hazardous emissions. If you have any doubts about the envelopes you are considering using, check with 
the envelope supplier.

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

Do not load different size envelopes at the same time.

A combination of high humidity (over 60%) and the high printing temperatures may seal the envelopes.

Note: This MFP is intended for occasional paper label printing only.

The MFP can print on many labels designed for use with laser printers, except for vinyl labels. These labels are supplied in 
Letter size, A4 size, and Legal size sheets. Label adhesives, face sheet (printable stock), and topcoats must be able to 
withstand temperatures of 230°C (446°F) and pressure of 25 pounds per square inch (psi).

Try a sample of any labels you are considering using with the MFP before purchasing a large quantity.

For detailed information on label printing, characteristics, and design, see the Card Stock & Label Guide available on the 
Lexmark Web site at www.lexmark.com/publications.

After printing approximately 10,000 pages of labels (or each time you replace the toner cartridge), complete the following 
steps to maintain MFP feeding reliability:

Print five sheets of paper.

Wait approximately five seconds.

Print five more sheets of paper.

When printing on labels:

Set the Paper Type to Labels in the Paper menu. Set the Paper Type from the MFP control panel, the MFP driver, 
or from MarkVision Professional.

Do not load labels together with paper or transparencies in the same source; mixing media can cause feeding 
problems.

Do not use label sheets with a slick backing material.

Use full label sheets. Partial sheets may cause labels to peel off during printing, resulting in a jam. Partial sheets 
also contaminate the MFP and the cartridge with adhesive, and could void the MFP and cartridge warranties.

Use labels that can withstand temperatures of 230°C (446°F) without sealing, excessive curling, wrinkling, or 
releasing hazardous emissions.

Do not print within 1 mm (0.04 in.) of the edge of the label, of the perforations, or between die-cuts of the label.

Do not use label sheets that have adhesive to the edge of the sheet. Zone coating of the adhesive at least 1 mm 
(0.04 in.) away from edges is recommended. Adhesive material contaminates the MFP and could void the 
warranty.

If zone coating of the adhesive is not possible, remove a 3 mm (0.125 in.) strip on the leading and driver edge, and 
use a non-oozing adhesive.

Remove a 3 mm (0.125 in.) strip from the leading edge to prevent labels from peeling inside the MFP.

Portrait orientation is preferred, especially when printing bar codes.

Do not use labels that have exposed adhesive.

For detailed information on label printing, characteristics, and design, see the Card Stock & Label Guide, available on the 
Lexmark Web site at www.lexmark.com/publications.