The product name does not appear in the product list in the Print &
Fax or Print & Scan list
Make sure that the cables are connected correctly and the product is on.
Print a configuration page to check the product name. Verify that the name on the configuration
page matches the product name in the Print & Fax (Print & Scan in Mac OS X v10.7) list.
Use the + button to add the product to the Print & Fax (Print & Scan in Mac OS X v10.7) list.
Replace the USB or network cable with a high-quality cable.