Follow the procedure below to check the port settings and the connection between the machine and computer.
Check that the power of the machine is on.
Make sure that the computer and machine are properly connected using a USB cable.
On the [Start] menu, click [Devices and Printers].
For Windows Vista or Windows Server 2008, click [Control Panel]. Then click [Hardware and Sound], and then click [Printers].
For Windows XP, click [Printers and Faxes].
For Windows Server 2003/2003 R2, point to [Settings], and then click [Printers and Faxes].
Right-click the machine icon, and then click [Printer properties].
For Windows Vista/XP or Windows Server 2003/2003 R2/2008, right-click the machine icon, and then click [Properties].
Click the [Ports] tab.
Check that USB is selected in the [Print to the following port:] list.
If you want to connect the machine to the network, check the operating environment, and then change the port setting. For details about configuring the port, see Using the SmartDeviceMonitor for client port, Using the standard TCP/IP port, and Using the LPR port.