Dell C1760NW Color Laser Printer - Manual (Page 194)

192 Maintaining Your Printer
Cleaning Inside the Printer
WARNING: To prevent electric shock, always turn off the printer and disconnect the power cable from the grounded outlet
before performing maintenance.
1 Confirm that the printer is not in operation, and open the toner access cover.
2 Pinch the cartridge firmly as shown in the illustration.
3 Pull the toner cartridge out.
4 Pull the other three cartridges out as well.