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