Lexmark XC4352
Step 1
Use an envelope that has been stored in a dry environment.
Note: Printing on envelopes with high moisture content can seal the flaps.
Send the print job.
Does the envelope seal when printing?
Go to step 2.
The problem is solved.
Step 2
Make sure that paper type is set to Envelope.
From the home screen, touch Settings > Paper > Tray Configuration > Paper Size/Type.
Contact customer support.
Watermarks are not appearing when printing from Google Chrome and Microsoft Edge
Does your document print longer than expected? Checking the paper settings, reducing the number of pages, and removing held jobs are possible solutions.