So I wasn't having any wierd problems for a while and life was beautiful . One fine day a bizhub c220 was not printing yellow. Put in new drum/ developer assembly/ High voltage pwb/ laser unit in that order and phew yellow is there. Does a stabilizing, gradation adjust , all good. Then goes to a small problem in tray 2 . Fixed it. Turned machine on and prints. Magenta is missing and there is yellow overtoned .
Any suggestions on which direction I should proceed.
Thanks
Bookmarks