HP CP1520 manual Turn off then on, Fuser error, XX Error

Control panel message	Status alert	Description	Recommended action
49 Error		The product experienced an	Turn the product off, wait at least
Turn off then on		internal error.	30 seconds, and then turn the
			product on and wait for it to
			initialize.
			If you are using a surge protector,
			remove it. Plug the product
			directly into the wall socket. Turn
			the product power on.
			If the message persists, contact
			HP support.
50.X Fuser error		The product has experienced an	Turn the product power off, wait
Turn off then on		error with the fuser.	at least 30 seconds, and then turn
			the product power on and wait for
			it to initialize.
			Turn off the product, wait at least
			25 minutes, and then turn on the
			product.
			If you are using a surge protector,
			remove it. Plug the product
			directly into the wall socket. Turn
			the product power on.
			If the message persists, contact
			HP support.
51.XX Error		The product has experienced an	Turn the product power off, wait
Turn off then on		internal hardware error.	at least 30 seconds, and then turn
			the product power on and wait for
			it to initialize.
			If you are using a surge protector,
			remove it. Plug the product
			directly into the wall socket. Turn
			the product on.
			If the message persists, contact
			HP support.
54.XX Error		The product has experienced an	Turn the product power off, wait
Turn off then on		error with one of the internal	at least 30 seconds, and then turn
		sensors.	the product power on and wait for
			it to initialize.
			If you are using a surge protector,
			remove it. Plug the product
			directly into the wall socket. Turn
			the product power on.
			If the message persists, contact
			HP support.

118 Chapter 10 Solve problems ENWW