Lexmark XC6153
Open door A.
Remove the waste toner bottle.
Remove the imaging unit.
Remove the developer unit.
Unpack the new developer unit, and then remove the packing material.
Insert the new developer unit.
Insert the imaging unit.
Insert the waste toner bottle.
Close door A.
Avoid printing delays. Install a new photoconductor unit when the printer prompts you to replace it.
Avoid printing delays. Install a new imaging unit when the printer prompts you to replace it.