• Damaged, curled, wrinkled, or irregularly shaped envelopes
• Extremely shiny or highly textured envelopes
• Envelopes with clasps
• Envelopes with self-adhesive closures
• Envelopes of baggy construction
• Envelopes not sharply creased
• Embossed envelopes
• Envelopes already printed by a laser printer
• Envelopes are pre-printed on the inside
• Envelopes that cannot be arranged uniformly when placed in a pile
• Embossed envelopes
• Envelopes constructed with a paper with a weight that exceeding the paper weight specifications for the printer.
• Poorly manufactured envelopes with edges that are not straight or consistently square.
• Envelopes with "baggy" construction or folds that are not sharply creased.
• Envelopes with transparent windows, holes, cutouts or perforations.
• Envelopes with clasps, snaps or tie strings.
• Envelopes made with smooth or shiny paper.
• Envelopes that are rough, highly textured, or deeply embossed.
• Envelopes which do not lie flat or that are curled, wrinkled, or irregularly shaped.
• Envelopes having an open flap with an adhesive that seals the envelope.

USE OF ANY OF THE ENVELOPES LISTED ABOVE MAY CAUSE DAMAGE TO YOUR PRINTER. SUCH DAMAGE IS NOT COVERED UNDER ANY WARRANTY OR SERVICE AGREEMENT.