When the Data in indicator does not flash or light up, check the port connection as shown below to confirm the setting.
For a parallel port connection, the port must be set to LPT 1 or LPT 2.
For a USB port connection, the port must be set to USB00(n)*.
*(n) varies depending on the number of printers connected.
Windows 2000
Click [Start], point to [Settings] and then click [Printers].
Click to highlight the icon of the printer. Next, on the [File] menu, click [Properties].
Click the [Port] tab.
Check the [Print to the following port] box to confirm that the correct port is selected.
Windows XP, Windows Server 2003/2003 R2
Access the [Printers and Faxes] folder from [Start].
Click to highlight the icon of the printer. Next, on the [File] menu, click [Properties].
Click the [Port] tab.
Check the [Print to the following port] box to confirm that the correct port is selected.
Windows Vista:
On the [Start] menu, click [Control Panel].
The [Control Panel] window appears.
Click [Printer].
The [Printers] window appears.
Right-click the icon of the printer you want to use, and then click [Properties].
Click the [Ports] tab.
Check the [Print to the following port] box to confirm that the correct port is selected.