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Ghost
Check HVPS
contacts and
HVPS's self-
NO
output
-> If failed,
repair/replace
Engine B'd
Samsung Electronics
Is it regular
NO
interval of 94mm?
YES
Transfer
voltage is set to
standard?
YES
Bias voltage
is OK? (-300V)
YES
Operating/storage
temperature is too low or
not recommended
paper used?
YES
Use the machine with
recommended paper and
at condition
Is it regular
interval of 46mm?
YES
Developing
/suppying voltage
normal? (-300V/
-500V)
YES
Irregularity of NIP
between rollers in
developer
-> Replace developer
Adjust the Bias
NO
voltage or replace
Engine B'd
NO
There may be a problem in toner
layer control in toner cartridge
-> Replace the developer
Maintenance & Troubleshooting
Is it regular
NO
interval of 47mm?
(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
- Check and Repair or
replace the terminal
contacts
Engine B'd
4-15
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