Envelopes wrinkles after running through printer

Don't print window envelopes or try a different make that are made better. They are often problematical. Video from the maker at the bottom.

Printing Envelopes on a RISO Inkjet Printer

Riso UK https://www.riso.co.uk > pdf > Printing-on-Env... PDF We have conducted a series of evaluation tests to determine which envelope types can be recommended for use and the results are shown in the charts shown ...
2 pages

Solved: Melting plastic on envelopes

HP Support Community https://h30434.www3.hp.com > LaserJet-Printing > td-p
When printing envelopes with my M605 HP Printer, it melts the plastic view windows. Any suggestions?

Thread: #10 window envelopes - Konica Minolta

Copytechnet https://www.copytechnet.com > ... > Konica Minolta
Aug 11, 2012 - We have a Minolta 452 and 552. Looking to print #10 window envelopes. I bought heat resistant window envelopes. Put them thru the machine ...

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Self Help Product Support Konica Minolta Business Solutions Inc

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

try this site Self Help Product Support Konica Minolta Business Solutions Inc

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

was the computer os updated, 8.1 to 10 or ?????

try this

Self Help Product Support Konica Minolta Business Solutions Inc

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Self Help Product Support Konica Minolta Business Solutions Inc

try this site

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Are you using proper laser envelopes? The machine should also be set on envelope mode (When you put your envelopes on the bypass tray the machine should ask what kind of paper you have put in there - just select envelopes).

Drums are not hot, you can try to clean them, are they smudgy? More likely the glue came off when it hit the hot section check this area, be carefull not to scratch anything.
-Carl

When you look at an envelope, it has spots where there are 2 to 4 thickness of paper in spots.( folds of the envelope) If this is where your shadows are, and your printer does not have any settings for envelopes, your printer may not be able to print those types of envelpes. You might try a lighter and thiner envelope.

did you put these envelopes right way (portrait/landscape) also you have to change in printer menu paper source paper type from plain paper to envelope.

How to copy/print onto envelopes.
Solution
Konica Minolta does not recommend copying/printing onto envelopes, asthe MFPwas not designed to run envelopes. Additionally, envelopes do not meet the
standards set for paper specifications. Their multi-layer make-up, adhesive, and odd size make it unreliable and potently damaging to the MFP.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f