Troubleshooting
4-10
Is it regular
interval of 38.5mm?
Printing cleaning mode
-> If the same problem
persists replace developer
and C/R.
When taking
out the cartridge,
toner leaks?
Toner leaks and toner
material dropped onto
the paper. -> Replace the
developer.
Bad image
removes by
scratching?
Check toner is stuck onto
the P/R or H/R in fuser.
-> Clean it or replace.
The problem
randomly occured
due to the toner
fallen. -> Clean the
machine.
NO
NO
NO
YES
Is it regular
interval of 96mm?
OPC was damaged
-> Replace developer
and C/R.
NO
YES
YES
YES
4-3-7 Black Dot
NO
Black band?
The black
band has regular
interval?
Black band
is far about 10mm from
white band?
Problem of internal
contacts in OPC.
-> Replace developer.
The OPC is damaged under the
direct sunlight for around 5
minutes. -> If the same problem
persists in 10 hours, replace
the developer.
This occurs when no
Hsync/ at LSU.
-> Replace LSU.
95.6mm interval?
Heat roller is ruined.
-> Replace the roller.
The OPC is damaged due to
the irregular transfer voltage
of HVPS.
-> Repair OPC or the developer
-> If the same problem perststs
repair/replace HVPS
Does it appear
at every 69.3mm at
specific place?
Problems of terminal contact,
transfer voltage supplying,
and transfer roller's due to the
charge roller is ruined (38.5mm).
-> Repair/replace HVPS,
developer.
NO
NO
NO
NO
YES
YES
YES
YES
4-3-8 Horizontal Band
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