Samsung SCX4650N
Troubleshooting. Image quality 3
7. Uneven Density
• Description : Print density is uneven between left and right.
Check and cause | Solution |
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• 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. |
1) Remove the transfer roller. 2) Check if the transfer roller has any wrong part. 3) Replace the transfer roller. |
The toner level is not even on the toner cartridge roller due to the bad blade. | Replace the toner cartridge. |
8. Background
• Description : Light dark background appears in whole area of the printing.
Check and cause | Solution |
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Does recycle paper be used? | Use the proper papers. |
The life of the toner cartridge has been expired | Replace the toner cartridge. |
The output from the HVPS/SMPS is abnormal. | Replace the HVPS/SMPS board. |
9. Ghost
• Description : Ghost occurs.
Check and cause | Solution |
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The high voltage terminal is contaminated. | Clean the high voltage terminals. |
The life of the toner cartridge has been expired | Replace the toner cartridge. |
The life of the transfer roller has been expired. | Replace the transfer roller. |