Samsung MultiXpress M5360
Troubleshooting. Image quality 2
4. Black and White spot
• Description : Dark or blurry black spots occur periodically in the printing.
| Probable Cause | Solution |
|---|---|
| The paper path is contaminated by toner residue, debris etc. | Clean the paper path. |
| The rollers in the imaging unit may be contaminated with foreign matter or paper particles. | Replace the imaging unit. |
| The transfer roller is contaminated or worn out. | Replace the transfer roller. |
| The pressure roller or heat roller in fuser unit defective. | 1) Turn the machine off. 2) Remove and replace the fuser unit. 3) Turn the machine on. WARNING Do not touch the fuser unit while it is hot. |
5. Light image
• Description : The printed image is light, with no ghost.
| Probable Cause | Solution |
|---|---|
| The toner cartridge life is expired. | Replace the toner cartridge. |
| The imaging unit life is expired. | Replace the imaging unit. |
| The surface of transfer roller is contaminated or worn out. | Replace the transfer roller. |
| HVPS terminal is contaminated. | Clean the contaminated terminal. |
| The output from the HVPS is abnormal. | Replace the HVPS board. |
6. Dark or Black page
• Description : The printed image is dark or black.
| Probable Cause | Solution |
|---|---|
| The charging roller in the imaging unit is defective. | Replace the imaging unit. |
| The HVPS contact terminal is contaminated. | Clean the HVPS contact terminal. |
| The output from the HVPS is abnormal. | Replace the HVPS board. |
| The LSU is defective. | Replace the LSU. |