Symptom

The following may occur when printing onto the types of envelopes shown below:

  • Wrinkles
  • Paper transport issues
  • Flaps stick (closed) to the body of the envelope

  • If the envelopes are fed in the SEF direction, they tend to warp in between the paper transfer belt unit and fusing unit.

[A]: C6, [B]: 105x235, [C]: DLX

Cause

The heat of the fusing process may cause wrinkles to form or the adhesive on the flaps to melt if the flaps are folded.

Solution

When feeding the types of envelopes described above, feed them from the bypass tray, in the LEF direction (from the trailing edge), with the flaps open.