Dell W5300 Workgroup Laser Printer - Manual (Page 16)

3.
NOTICE: Do not touch the photoconductor drum on the underside of the toner cartridge.
1 Photoconductor drum
Gently shake the cartridge to distribute the toner evenly. 4.
Align the tabs on each side of the toner cartridge with the slots on each side of the cartridge cradle.
Use the arrows inside the printer for placement. 5.