Dell B3465dnf Mono Laser Multifunction Printer - Manual (Page 213)

Replacing supplies
Replacing the toner cartridge
1 Press the button on the right side of the printer, and then open the front door.
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2 Pull the toner cartridge out using the handle.
3 Unpack the toner cartridge, and then remove all packing materials.
4 Shake the new cartridge to redistribute the toner.
5 Insert the toner cartridge into the printer by aligning the side rails of the cartridge with the arrows on the side rails
inside the printer.
Maintaining the printer 213