Oki ES9160, Maintenance Manual

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ES9160 MFP / ES9170 MFP © 2012 OKI DATA CORPORATION All rights reserved
ERROR CODE AND TROUBLESHOOTING
8 - 274
8.4.13 Black banding (at right angle with the feeding direction)
Fig.8-15
Defective area Step Check items Prescription
Main charger 1 Is the needle electrode dirty or
deformed? Clean or replace the needle
electrode.
Fuser unit 2 Are the fuser roller, separation finger
for fuser roller and thermistor dirty? Clean them.
3 Has the fuser roller and separation
finger for fuser roller reached their
PM life? Replace them.
High-voltage transformer
(Main charger / Developer
bias / Transfer roller unit) 4 Is the high-voltage transformer
output defective? Adjust the output, or replace the
transformer.
Drum 5 Is there a deep scratch on the drum
surface? Replace the drum if the scratch has
reached the aluminum base.
6 Is there thin scratch (drum pitting) on
the drum surface? Check and adjust the contact
condition of the cleaning blade and
recovery blade.
Scanner 7 Is there a foreign matter on the
carriage rail? Remove the foreign matter.
Feeding direction