Solutions
Connect the USB cable securely to the printer and the computer.
Solutions
If you are using a USB hub, try to connect the printer directly to the computer.
Solutions
If the USB cable cannot be recognized, change the port, or change the USB cable.
Solutions
Disconnect the USB cable from the computer. Right-click on the printer icon displayed on the computer, and then select Remove Device. Next, connect the USB cable to the computer.
If you cannot use the USB cable, re-set the USB connection by following the steps for changing the connection method to a computer. See the related information link below for details.