Black Dot - Samsung SF-830 Service Manual

Troubleshooting
Black Spot
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Is it regular
interval of 38mm?
YES
The problem occured
since the obstacles
stuck to charge roller
-> Clean the Charge Roller
and then reprint.
4-25
When taking
NO
out the cartridge,
toner leaks?
YES
Toner leaks and much
toner material dropped
onto the paper ->
Replace the developer
Bad image
NO
removes by
scratching?
YES
Check toner is stuck onto
the P/R or H/R in fuser
-> Clean it or replace
The problem
NO
randomly occurred
due to the toner
fallen -> Clean the
machine
Samsung Electronics