Oki B411d User Manual page 129

SYMPTOM
Page has
repetitive
marks.
Oblong area
of faint print
appears on
each page.
Vertical white
streaking or
faint areas on
page.
Vertical black
lines.
Fuzzy print.
Distorted
print.
Smeared or
blotched
print.
Printed page
is light/
blurred.
Bold
characters
and dark lines
are smeared.
129 > B411/B431 Troubleshooting
PROBLEM
Damaged image drum
cartridge causes
repetitive marks every
1.6 inches (4.06 cm) due
to surface nicks and
scratches.
Drop out caused by
using paper exposed to
high humidity.
Toner is low and does
not distribute properly,
or the drum is worn out.
LED array is dirty.
Hardware problem.
LED array is dirty.
Paper path, lamp
assembly, or fusing unit
problem.
Dirty rollers; toner
dropped inside printer or
image drum problem.
Is toner low?
Is paper meant for laser
printers?
LED array is dirty.
Toner is low.
SOLUTION
Generate a cleaning
page, repetitive marks
may be temporary.
Change paper stocks,
check paper storage
environment or use a
dehumidifier; check
toner level.
Replace toner
cartridge. Check drum
and replace the drum,
if necessary. Contact
service.
Clean LED array.
Contact service.
Clean LED array.
Generate cleaning
page.
Contact service.
Replace image drum
and toner.
Contact service.
Replace toner
cartridge.
Use recommended
paper.
Clean LED array.
Install new toner
cartridge.