73 Development Unit (Black): Case/74 Development Unit (Cyan, Magenta, Yellow): Case/75 Development Unit (Special): Case
The procedure in the movie is explained using the unit for black as an example. The units for other colors are located in different positions, but the procedure is the same.
What You Need
Screwdriver
Waste Cloth
When you reattach the development unit, it may not fit in properly. If the photoconductor unit cannot fit in for installation, turn the joint's tab slightly.
