Brother HL-6050 Service Manual page 250

I-17 Black band
Possible cause Step
Corona failure 1
Corona failure 2
Check
Is the wire cleaner at its home
position?
Is the corona wire dirty?
6-47
HL-6050/6050D/650DN SERVICE MANUAL
Result Remedy
No Return the wire
cleaner to its home
position.
Yes 1) Clean the corona
wire.
2) If the problem still
appears after
cleaning, replace
the drum unit.
Ground
contacts
(2)
(2)