Confidential
9-42

I-17 Black band

Possible cause Step Check Result Remedy Ground
contacts
Corona failure 1 Is the wire cleaner at its
home position?
No Return the wire cleaner
to its home position. (2)
Corona dirty 2 Is the corona wire dirty? Yes 1) Clean the corona
wire.
2) If the problem still
appears after
cleaning, replace the
drum unit.
(2)