Hello community. I have a workcentre M20i printer does not print well .. Here is the picture..What is it?
It's either the drum or fuser.
For the drum go to Machine status > System Admin Tools > Maintenance > Clean Drum and run that 3-4x and see if it clears it.
If that fails you would need to replace the drum, or have a tech replace the fuser.
With your advice I have not solved the problem..
The drum unit is new
Then you have your answer and have a bad fuser.