My Xerox machine has got a faulty ROS unit. Does anyone have the assembly detail of the ROS as the rotating mirror is spinning on switch on with loud whining noise. On opening the ROS assembly I noticed that the rotating mirror does not have any constraint to prevent it from lifting off.
Also I have another DC 230DC machine which is just a stand alone copier. when I replaced the ROS to 230ST ( I also had to replace the mirror motor interface board as the connector from the ROS was slightly larger). I am getting black prints.

Could anyone assist me in my dilema?