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• Use only new envelopes from undamaged packages.
• 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 guides to fit the width of the envelopes.
Note: A combination of high humidity (over 60%) and high printing temperature may wrinkle or seal envelopes.
Tips on using labels
Note: Use paper label sheets for occasional use only. Vinyl, pharmacy, and dual‑sided labels are not supported.
For detailed information on label printing, characteristics, and design, see the Card Stock & Label Guide available on
the Lexmark Web site at http://support.lexmark.com.
When printing on labels:
• Use labels designed specifically for laser/LED printers. Check with the manufacturer or vendor to verify that:
– The labels can withstand temperatures up to 210°C (410°F) without sealing, excessive curling, wrinkling, or
releasing hazardous emissions.
Note: Labels can be printed at a higher fusing temperature up to 220°C (428°F) if Label Weight is set to
Heavy. Select this setting using the Embedded Web Server, or from the printer control panel Paper menu.
– Label adhesives, face sheet (printable stock), and topcoats can withstand up to 25 psi (172 kPa) pressure without
delaminating, oozing around the edges, or releasing hazardous fumes.
• Do not use labels with 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 printer and the cartridge with adhesive, and could void the printer and cartridge warranties.
• Do not use labels with exposed adhesive.
• 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.
• Be sure adhesive backing does not reach to the sheet edge. Zone coating of the adhesive at least 1 mm (0.04 in.)
away from edges is recommended. Adhesive material contaminates the printer and could void the warranty.
• If zone coating of the adhesive is not possible, remove a 1.6 mm (0.06 in.) strip on the leading and driver edge, and
use a non‑oozing adhesive.
• Portrait orientation works best, especially when printing bar codes.
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