Brother HL1060 - B/W Laser Printer Service Manual page 81

I-18 Hollow print
Possible cause Step
Print paper
I-19 Downward fogging of solid black
Possible cause Step
Drum unit
SR PCB
Check
1 Is thick paper of more than 42lb
being used or extremely rough
surface paper?
Check
1 Is the problem solved after
replacing the drum unit?
2 Is the problem solved after
replacing the SR PCB?
CHAPTER IV -17
Result Remedy
Yes Recommend to use the
specified type of paper.
No Refer and compare with I-14.
Result Remedy
Yes Replace the drum unit.
Yes Replace the SR PCB.