– 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
Print samples on the labels being considered for use before buying large quantities.
Note: Use only paper label sheets. Vinyl, pharmacy, and two‑sided labels are not supported.
For more information on label printing, characteristics, and design, see the Card Stock & Label Guide available at
http://support.lexmark.com.
When printing on labels:
• Use labels designed specifically for laser printers. Check with the manufacturer or vendor to verify that:
– The labels can withstand temperatures up to 240°C (464°F) without sealing, excessive curling, wrinkling, or
releasing hazardous emissions.
– Label adhesives, face sheet (printable stock), and topcoats can withstand up to 172‑kPa (25‑psi) 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 toner cartridge
warranties.
• Do not use labels with exposed adhesive.
• Do not print within 1 mm (0.04 inch) of the edge of the label, of the perforations, or between die‑cuts of the label.
• Make sure the adhesive backing does not reach to the edge of the sheet. Zone coating of the adhesive should be
at least 1 mm (0.04 inch) away from edges. Adhesive material contaminates the printer and could void the warranty.
• If zone coating of the adhesive is not possible, then remove a 2‑mm (0.08‑inch) strip on the leading and driver edge,
and then use a non‑oozing adhesive.
• Portrait orientation is recommended, especially when printing bar codes.
Tips on using letterhead
• Use letterhead designed specifically for laser printers.
• Print samples on the letterhead being considered for use before buying large quantities.
• Before loading letterhead, flex, fan, and straighten the stack to prevent sheets from sticking together.
• Page orientation is important when printing on letterhead. For information on how to load letterhead, see:
– “Loading trays” on page 27
– “Loading the multipurpose feeder” on page 32
Paper and specialty media guide 39
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