Samsung SCX-5935FN Service Manual page 127

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Ghost
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Replace PTL
assembly
Check HVPS
contacts and
HVPS's self-
output
-> If failed,
repair/replace
HVPS
Service Manual
Alignment & Troubleshooting
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Is it regular
NO
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interval of 94.3mm?
YES
NO PTL lamp
works OK?
YES
Transfer
NO
voltage is set to
standard?
YES
Bias voltage
is OK? (-450V)
YES
Operating/storage
temperature is too low or
not recommended
paper used?
YES
Use the machine with
recommended paper and
at condition
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Is it regular
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interval of 54.3mm?
YES
Developing
/supplying voltage
normal? (-450V/
-600V)
YES
Irregularity of NIP
between rollers in
toner cartridge
-> Replace toner cartridge
NO
Adjust the Bias voltage
or replace HVPS
NO
There may be a problem in toner
layer control in toner cartridge
-> Replace the toner cartridge
4-76
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Is it regular
NO
interval of 56.6mm?
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(as transfer roller
interval)
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
NO
- Repair or replace HVPS
- Check and Repair or
replace the terminal
contacts
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