Optimizing envelope performance

To minimize jams, do not use envelopes that:

• Have an 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 sealed or closed

• Have bent corners

• Have rough, cockle, or laid finishes

For more information about envelope support for your printer, see "Printer-specific paper support."