MF644 cdw prints with smudges and inconsistent printing (light and dark) . suggestions how to fix?

[VINNYSAV]

have had my MF644 cdw laser printer for about 10 months with little or no issues.  Now i am getting smudge marks on the left side of the print outs both yellow and black smudges.  Also, now the printed letters are both dark and light through out  the page.  Any suggestions on how to return to origional condition that was just fine?

I am using windows 10 and am communicating with the printer via wireless connections.

Thanks for any suggestions....

Vinnysav

[Stephen]

Hello!

So that the Community can help you better, we will need to know about any error messages you're seeing, and the Computer Operating System you're using (Windows Vista/7/8/10 or macOS 10.x), as well as the way you connect to your device (USB or WiFi).

Any other details you'd like to give will only help the Community better understand your issue!

If you're in the United States, and this is an urgent support need, please click HERE to visit your My Canon Account to discover your personalized support options. 

If you're outside of the USA, please click HERE to find support options in your country.

Thanks and have a great day!

[that1guy951]

I have the same problem with a 2-day-old printer. Try this and tell me if it changes the print quality?

https://community.usa.canon.com/t5/Office-Printers/ImageClass-MF644CDW-MF641CDW-Bad-Print-Quality-wi...