I have had three printers which "supposedly" printed envelopes. Only one of them really did. STOP TRYING!!! Try your best to COMPLETELY clean everything of toner. If that doesn't work, take cheap paper and keep printing until the mess is cleared up. This should work, but if you have gummed up the wrong parts with toner you can either take it to a pro whom you call first and describe the problem before you take it to him/her, which is probably going to be expensive and all that he may do is take it apart and say it's beyond repair and charge you whatever he/she charges (find out first). The alternative that I would take is to try to fix it myself. I have found this site for you: https://www.youtube.com/watch?v=Cr4wWt2ci_4&list=PL6BEA51BFAEECF4BF
It may be helpful. I gather that this is an expensive printer. However when I tried to Google what you wrote it was listed but it would not respond to a click or a double-click (it should have responded to a single click). This is the best that I can do for you. Good luck.
