HP Color LaserJet 4650 Printer series - Manual (Page 241)

Installing an HP Jetdirect print server card
You can install an HP Jetdirect print server card in the base model printer, which comes with
an open EIO slot.
To install an HP Jetdirect print server card
1. Turn the printer off.
2. Disconnect all power and interface cables.
3. Locate an empty EIO slot. Loosen and remove the two retaining screws holding the
cover for the EIO slot onto the printer, and then remove the cover. You will not need
these screws and cover again.
ENWW Installing an HP Jetdirect print server card 227