Oki B431dn B411 B431 User Guide - Eng - Page 129

SYMPTOM, PROBLEM, SOLUTION, Clean LED array.

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SYMPTOM PROBLEM SOLUTION 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. 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. 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. 129 > B411/B431 Troubleshooting

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