Samsung SCX3400
Troubleshooting. Image quality 4
10. Stains on back of page
• Description : The back of the page is stained.
| Check and cause | Solution |
|---|---|
| Transfer roller is contaminated. | Replace the transfer roller. |
11. Blank page
• Description : No visible image anywhere on the output.
| Check and cause | Solution |
|---|---|
| The ground contact of the toner cartridge is bad. | Clean the ground terminal of the toner cartridge. If the problem persists, replace the toner cartridge. |
| LSU is defective. | Replace the LSU. |
| The connection between the main board and HVPS/SMPS board is bad. | Reconnect the harness. If the main board or HVPS/SMPS board is defective, replace it. |
12. Partial image void
• Description : The partial void occurs in the printed page.
| Check and cause | Solution |
|---|---|
| The printer is not installed on flat ground. | Install the printer on flat ground. Print 10 sample pages for test. |
| The developer circulation in the toner cartridge is bad. | 1) Shake the toner cartridge 2~3 times from right to left. Reinstall the toner cartridge. Print 10 sample pages for test. 2) If the problem persists, replace the toner cartridge. |
| The contact between toner cartridge and transfer roller is bad. | Check if the toner cartridge and transfer roller are installed properly. |