Service manual

Troubleshooting
4-26
Samsung Electronics
Recommended
paper used?
Transfer,
charge and developing
voltage are OK?
Operating/
storage atmosphere is
too high temperature
/humidity?
Solve the problem under
the recommended condition
(10-32 degree Centigrade)
Dirt or
dust around the
charge roller?
Clean the charge roller
or replace step-up device
/terminal after check
Work OK?
Internal blade or
supplying part of the
developer is defective
-> Replace the toner
cartridge
Check Terminals or contacts and 'Guide-Deve Spring'
are misplaced
-> Repair or replace transfer roller etc.
Check if the LED of PTL in front of the transfer roller
is on when it presses the top cover switch on purpose
-> If not, replace PTL
Print 20 to 30 pages using
the recommended paper
Same problem
occurs?
- Adjust voltage or
replace HVPS
- Repair or replace
after
checking the
terminals' contacts
END
Replace the
toner cartridge
NO
NO
NO NO
NO
NO
YES
YES
YES
YES
YES
YES
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Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer