Dell 5130cdn Color Laser Printer - Manuel (Page 337)

NOTICE: Do not hold the parts shown in the illustration.
8. Slide the blue tab back-and-forth five times to clean the conductivity temperature depth sensor.
CAUTION: Be careful not to touch the fuser. It can burn your fingers.
Installing a Belt Unit
1. Unpack a new belt unit and place the unit on a level surface.