62 Maintaining Your Printerw w w . d e l l . c o m | s u p p o r t . d e l l . c o m 7 Install the toner cartridge assembly into the printer by aligning the blue arrows on theguides of the toner cartridge assembly with the blue arrows on the tracks in the printer andpushing the toner cartridge assembly in as far as it will go.8 After you replace the imaging drum, you should reset the imaging drum’s counter. To resetthe counter, press and hold the Cancel button until all lights flash in sequence.NOTICE: Resetting the imaging drum's counter without replacing the imaging drum may damageyour printer and void your warranty.9 Close the front cover.