A technician is changing out a PCB on a non-functional network printer. Which of the fol owing
should be the FIRST thing the technician does?

A.
Reset the unit to factory defaults, remove all media and consumables and unplug the NIC.

B.
Remove all the units covers and begin working.

C.
Power off the device, unplug the power cord from the outlet, unplug the network cable and
make sure they are grounded with a wrist strap or static mat.

D.
Remove all media and consumables and verify that the print queue is stopped. Also use a
grounded wrist strap before proceeding.