Brother DPC-8060 Service Manual page 361

(I-15) White spots
(1) If the problem is not solved after printing a few pages, the drum unit may
(2) The drum unit may be damaged. Install a new drum unit.
Possible cause
Step
Drum unit 1
failure
2
No toner 3
Print paper 4
Environment 5
User Check
have glue from label stock on the exposure drum surface. Refer to Step 1
in the table below and
Check
Are the white spot at
94.2mm intervals?
Is the problem solved after
replacing the drum unit?
Is the toner in the toner
cartridge almost empty?
Is the problem solved after
changing to specified
freshly unpacked paper?
Does the problem still
appear after the machine
has warmed up?
NOTE in the next page.
Result
Yes
1) If toner or glue remains stuck,
wipe it off gently with a cotton
swab. (Refer to
next page.)
2) If the drum surface is
scratched, replace the drum
unit.
Yes Replace the drum unit.
Yes Replace the toner cartridge with a
new one.
No Damp (wet) paper might be used.
Recommend to change freshly
unpacked paper.
Yes
1) Replace the drum unit.
2) Advise the user of the specified
machine environment
9-39
Remedy
NOTE in the
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