Mac OS X
When the printer is connected to Mac OS X and the Data In 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]
From the Apple menu, select [About This Mac].
Click [More Info...].
Under [Contents], for [Hardware], Select [USB].
Using the printer browser - Mac OS X 10.4 or earlier
On the [Go] menu, click [Utilities].
Double-click [Printer Setup Utility].
Click [Add].
Check that the printer appears in the browser. If it does not, reinstall the driver.
Using the printer browser - Mac OS X 10.5 or later
From the Apple menu, select [System Preferences...].
Under "Hardware", click [Print & Fax].
Click [+], and then click [Default].
Select the name of the printer you are using, and then click [Add].
Check that the printer appears in the browser. If it does not, reinstall the driver.
