5 Remove the protective cover.

6 Insert the new toner cartridge in the drum unit until it clicks into place. If you put it in properly, the lock lever will lift automatically.

Drum Unit

Toner Cartridge

7 Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left several times. Return the blue tab to the Home position () before reinstalling the drum unit and toner cartridge assembly.

Home Position()

Tab

Corona Wire

22 - 32 TROUBLESHOOTING AND ROUTINE MAINTENANCE