Wrinkles Occur on Printed Envelopes

Wrinkles can occur when printing on envelopes under the following conditions:

• After printing a large number of envelopes (printing about 100 duplex mode).
• When printing thick envelopes of average weight up to 110 g/m².
• When printing in ambient temperature above 20°C (68°F).

Cause

Due to the wide envelope nip and envelope shape (equivalent to several sheets of paper, and the flap), the effect of the twisting motion at the fusing nip can cause wrinkling.

Action

• If wrinkling occurs, wait at least 5 min. before printing more envelopes.
• Switch to feeding envelopes from the bypass paper tray.
• Switch to envelopes made by another manufacturer.