Troubleshooting
4-20
Samsung Electronics
Is it regular
interval of 75.4mm?
Irregularity of NIP
between rollers in
developer
-> Replace developer
Clean heat roller
or replace it
Clean transfer roller’s holder and
TR drive gearor replace TR holder ass’y
Clean TR drive
and OPC gear
END
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
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 condition
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
Check HVPS
contacts and
HVPS’s self-output
-> If failed, repair/
replace HVPS
- Repair or replace HVPS
- Check and Repair or
replace the terminal
contacts
NO
NO
Is it regular
interval of 31.6mm?
Is it regular
interval of 47mm?
(as transfer roller
interval)
Is it regular interval of
50.4 mm?
Does
the operation
of TR work properly?
Transfer
voltage is set to
standard?
Does the same
problem persist?
Developing
/suppying voltage
normal? (-350V/
-550V)
Bias voltage
is OK? (-350V)
Operating/storage
temperature is too low or
not recommended
paper used?
Ghost
