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 waste toner bottle.
Remove the toner cartridges.
Remove the imaging kit.
Remove the used developer unit.
Warning—Potential Damage: Do not expose the imaging kit to direct light. Extended exposure to light may cause print quality problems.
Warning—Potential Damage: Do not touch the photoconductor drum. Doing so may affect the quality of future print jobs.
Remove the packing material.
Insert the new developer unit.
Insert the imaging kit until it is fully seated.
Insert the toner cartridges until they click into place.
Insert the 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.