HP LaserJet 9000 Printer series - Manual (Page 212)

B Control panel menus 212
Configure device menu
EIO submenu
The EIO (enhanced input/output) submenu appears only when an EIO device is installed in an EIO slot on the product (such
as an HP Jetdirect print server). The items in the menu depend on the particular accessory product installed. If the product
contains an HP Jetdirect print server EIO card, you can configure basic networking parameters using the EIO menu. These
and other parameters can also be configured through HP Web JetAdmin or other network configuration tools (such as Telnet