Brother DCP-8065DN

Confidential
9-43
(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)
(I-18) Gray background
Possible cause
Step
Check
Result
Remedy
No
Recommend to use the specified
types of paper.
Print paper 1 Does the paper being used
meet the paper
specification (weight, etc.)
Yes Recommend to change to freshly
unpacked paper.
Toner sensor
failure
(machine side)
2 Is the error indication
displayed when the toner
cartridge and drum unit is
taken out of the machine?
(The front cover is closed.)
No Toner sensor failure. Clean the
toner sensor and check the toner
sensor connection.
Toner
cartridge
failure
3 Is the problem solved after
replacing the toner
cartridge?
Yes Replace the toner cartridge.
Yes
Replace the drum unit.
Drum unit
failure
4 Is the problem solved after
replacing the drum unit?
No
Replace the high-voltage power
supply PCB.
NOTE: The following cases increase the possibility of this problem.
• Acid paper is being used.
• The drum unit is at the end of its life.
• There is dust or paper powder.