4. Troubleshooting
4.7.2. Vertical White Band, Light Band
A. Typical faulty images
B. Troubleshooting procedure
Step
Cause
Action
1
A foreign substance is stuck between Magnetic roller
and Blade.
•
The toner on Magnetic-roller is empty partially.
Pull out a foreign substance.
•
Make the hook shape sheet. (Transparency sheet
is recommended. )
•
Put the hook into the gap between Magnetic roller
and Blade.
•
Pull out a foreign substance.
2
The developer in Deve unit is insufficient or the life of
Deve unit has expired.
1) Print the supplies information report. Check the
remaining life of the Deve unit. If it is expired,
replace the Deve unit.
2) Check the developer layer on magnetic roller. If
it is short seriously, replace the Deve unit.
3
The path of laser beam is blocked.
Clean the LSU window.
(Refer to 3.2.1.2.)
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