New maintenance kit worked for me too!
New Transfer Belt solved issue.
Customer changed Cyan and Magenta Image Units and there is no change to print problem.
New RID 21742044
Spoke with David and we agreed the first srep will be to have the client order and replace the image Units again. Will keep you posted.
As you can see, the magenta and cyan are washed out half way accross the page. Paper direction is Letter-R with the light area to the rear of the printer. The customer had already replaced the Magenta Image Unit and has the same Print issue with the new unit.