I've got a home office use Workcenter 7232 which is printing barber pole spirals in magenta. It also has toner spills on the inside. At the Xerox hosted forums someone suggested that this is a common issue and that I need to replace the Magenta developer. I am attaching the pics of the printouts and would appreciate any inputs.

Ultimately I am looking for the Xerox WC 7232 Service Manual so that I can go about fixing this issue. If any one has the Service Manual could you please contact me? Thank you