If you will install a new bottle, and the old bottle is not in a full or near-full condition, then set SP 3902-017 to 1.
If you do this, then the machine will reset the PM counter for the bottle automatically, after you turn the power on again.
If the bottle is in a full or near-full condition, it is not necessary to do this.
Turn off the main power switch.
Open the front door and remove the screw [A].
Close the front door.
Pull out tray 1 [B].
Open the toner collection bottle door [C].
Pull out the toner collection bottle [D].