Samsung ML-6060 Service Manual page 34

4-3-6 Ghost
Replace PTL
assembly.
Check HVPS
contacts and
HVPS's self-
output.
-> If failed,
repair/replace
HVPS.
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Is it regular NO
interval of 95.6mm?
YES
NO PTL lamp
works OK?
YES
Transfer
NO
voltage is set to
standard?
YES
(
Bias voltage NO
is OK? (-500V)
YES
NO
Operating/storage
temperature is too low or
not recommended
paper used?
YES
Use the machine with
recommended paper and
at normal condition.
Is it regular
NO
interval of 47.1mm?
YES
A specific part of the transfer
roller has ruined or its
resistance value is changed.
-> Replace transfer roller.
Transfer roller cannot force
regularly due to the gears
eccentricity of transfer roller.
-> Replace the defective
component.
Transfer roller is well
-connected to or not.
-> Replace the defective
component.
(
Developing
NO
/suppying voltage
normal? (-500V/
-650V)
YES
Irregularity of NIP
between rollers in
developer.
-> Replace developer.
Adjust the Bias
voltage or replace
HVPS.
There may be a problem in toner
layer control in toner cartridge.
-> Replace the developer.
(
(
Normal
Troubleshooting
Is it regular
interval of 56.1mm?
(as transfer roller
interval)
YES
- Repair or replace HVPS .
- Check and repair or
replace the terminal
contacts.
Without Cartridge
4-9