Brother International HL-1070 Service Manual - Page 81
Hollow print, Downward fogging of solid black
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I-18 Hollow print Possible cause Print paper Step 1 Check Is thick paper of more than 42lb being used or extremely rough surface paper? Result Remedy Yes Recommend to use the specified type of paper. No Refer and compare with I-14. I-19 Downward fogging of solid black Possible cause Drum unit SR PCB Step Check 1 Is the problem solved after replacing the drum unit? 2 Is the problem solved after replacing the SR PCB? Result Remedy Yes Replace the drum unit. Yes Replace the SR PCB. IV-17
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IV-17
I-18
Hollow print
Possible cause
Step
Check
Result
Remedy
Print paper
1
Is thick paper of more than
42lb being used or extremely
rough surface paper?
Yes
Recommend to use the
specified type of paper.
No
Refer and compare with I-14.
I-19
Downward fogging of solid black
Possible cause
Step
Check
Result
Remedy
Drum unit
1
Is the problem solved after
replacing the drum unit?
Yes
Replace the drum unit.
SR PCB
2
Is the problem solved after
replacing the SR PCB?
Yes
Replace the SR PCB.