Dell S2815dn - Streaks Appear on the Output

508 Troubleshooting Guide
Streaks appear on the output
Action Yes No
1 The toner cartridge may be low or need to be replaced. Confirm the
amount of toner left in the toner cartridge.
a Check the toner level on the Dell Printer Configuration Web Tool .
b Replace the toner cartridge as necessary.
Does this solve your problem?
The task is complete. Go to action 2.
2 If you are using a non-Dell brand toner cartridge, enable the Non-Dell
Toner
option.
a Start the Tool Box from the Dell Printer Hub or Dell Printer
Management Tool
, and click Service Tools on the Printer
Maintenance
tab.
b Ensure that the On check box under Non-Dell Toner is selected.
Does this solve your problem?
The task is complete. Go to action 3.
3 Replace the drum cartridge.
a Replace the drum cartridge. See "Replacing the Drum Cartridge."
b After you replace the drum cartridge, click Reports on the Printer
Setting Reports
tab.
c Click Demo Page .
The demo page is printed.
Does this solve your problem?
The task is complete. Contact Dell.