Open door B.
Open door A.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching it.
Remove the right cover.
Remove the used waste toner bottle.
Note: To avoid spilling the toner, place the bottle in an upright position.
Unpack the new waste toner bottle.
Insert the new waste toner bottle until it clicks into place.
Attach the right cover until it clicks into place.
Close door A, and then close door B.