What is important to remember about the control panel when powering off the HP Color LaserJet
Enterprise CM4540 MFP?

A.
Depending on which functions the operating system is performing at the time the power button is
pressed, the control panel could take up to sixty seconds to shut off.

B.
Due to the latest generation firmware, the product must not be shut down while the Service
menu is displayed on the control panel.

C.
The control panel is a stand-alone USB device. Therefore, the control panel has its own power
button that must be pressed to shut it down.

D.
The control panel automatically enters its diagnostic mode when the power button is pressed. To
maintain optimum efficiency, the control panel runs a self-diagnostic test while the product shuts down.