Samsung SF6500 Service Manual page 103

Maintenance & Troubleshooting
Nomal voltage in HVPS ?
Its wiring harness O.K ?
Is the transfer roller O.K ?
Check the LSU unit and
Does the trouble occur even with
then replace it if necessary.
another LSU unit ?
Does the trouble occur even
with another toner cartridge ?
Check the developer driver unit and
then replace it if necessary. See page 6-27.
7-18
A
Y
Y
B
Y
N
Replace the HVPS or connect the
harness properly.
N
Replace the transfer roller.
N
Replace the toner cartridge.
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