Samsung SL-M4080FX Service Manual page 202

4. Troubleshooting
7) Uneven Density
Description : Print density is uneven between left and right.
Probable Cause
The pressure force on the left and right springs of the
•
transfer roller is not even.
The springs are damaged.
•
The transfer roller is improperly installed.
•
The toner level is not even on the toner cartridge roller due
to the bad blade.
4-105
Solution
1) Remove the transfer roller Assy.
2) Check if the transfer roller Assy has any wrong part.
3) Replace the transfer roller Assy.
Replace the toner cartridge.
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