Samsung Msys 6800 Service Manual page 46

Maintenance & Troubleshooting
Black Dot
Is it regular
interval of 38mm?
YES
The problem occured
since the obstacles
stuck to charge roller
-> Replace developer
and C/R
4-16
When taking
NO
out the cartridge,
toner leaks?
YES
Toner leaks and 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 occured
due to the toner
fallen -> Clean the
machine
Samsung Electronics