Samsung SF-530 Service Manual page 46

A
Is the
connection of
OPC GND and Frame Ground
correct? (less than
10 ‰)
YES
Trnasfer
voltage OK? (on the
transfer roller
shaft)
YES
Developing
(-350V) and supplying
(-550V) voltage
are OK?
YES
Does the
counter indicate over
the toner's guarranty
life
YES
Replace the toner cartridge
Samsung Electronics
Check the connection of
frame Ground and OPC GND
NO
Are the
connection terminal
and connection
correct?
Replace HVPS or repair defective component
NO
Is the connection
terminal OK?
Replace HVPS or repair defective component
Transfer roller might be out of its location
-> Locate the roller into its place
NO
This could occurrs when he power of LSU is low or
the density is low due to the obstacles on the window
-> Replace LSU or clean the window
NO
YES
NO
YES
Troubleshooting
Repair or replace terminal
Repair or replace terminal
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