HP J Class Owner's Manual page 140

B-12
5.
Set the drawer on a flat surface.
6.
Unscrew the captive screw holding the EMI plate at the back of
the removable drives and lift the plate up and out of the drawer,
as shown in Figure A–4.
Figure A–4. Removing EMI Plate
7.
Disconnect the SCSI and power cables from the drive.