HP LaserJet Pro MFP M227fdw printer - when Printing an Envelope - print is smudge smudging off paper

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I have a 2 year old HP LaserJet Pro MFP M227fdw (Product G3Q75A) printer.

I recently replaced:

1.  Drum/Fuser (32A CF232A Imaging Drum Replacement for HP 32A Drum Unit CF232A Compatible with Laser Pro M203dn M203dw MFP M227fdn M227sdn M227fdw Printer | CF232A) - (less than 400 pages as of today)

2.  Toner Cartridge (HP 30A CF230A 30X CF230X 30A CF230A Toner Cartridge Black Compatible for Pro MFP M227fdw M203dw M227fdn M203dn M227sdn M203d M227 M203 Series Printer).  NEW as of today. 

The printer is not used that much being used as a home printer.

The printer printers flawlessly whenever I print on 8 1/2 x 11 Laser Paper.  The laser ink does NOT "smudge off" with my finger and I'm pleased with this printer except for this envelope printing problem I just discovered.

I use Microsoft Word  within Office Professional Plus 2021.  I've made a document with a a very simple single #10 business envelope with only 1 address that worked perfectly with my older Brother Printer without errors.

Problem:  When I print envelopes, any envelopes, on this HP printer, the ink is not fusing to the envelopes like it does on the 8 1/2 x 11 Laser Paper.  The laser ink "smudges" off with my finger.  I've tried a couple of different "LaserJet Printer Friendly" envelopes but get the same unwanted result.  Frustrated, I've attempted to help myself rather than replacing or paying for support for a printer I use very little.  

I've tried a few things like:

- Changing Printer Density on the printer between 3 and 9

- Changing the Printer Quality from FastRes 1200 to ProRes 1200 (180 DPI)

Any suggestions would be greatly appreciated.