Mac OS X
When the printer is connected to Mac OS X and the Ready indicator does not flash or light up, try the following procedures to check the port connection.
Use [About This Mac] to check the USB information.
Use the printer browser to check if the printer is displayed.
Using [About This Mac]
Click Apple Menu, and then select [About This Mac].
Click [More Info].
Under [Contents], for [Hardware], Select [USB].
Using the printer browser
Start [Printer Setup Utility] or [Printer Center] utility.
Under Mac OS X 10.5 or 10.6, start System Preferences and click [Print & Fax].
Click [Add] or [+] button.
The printer browser starts.
Confirm the printer is displayed on the browser.
