Epson Stylus Pro 4000 Reference Manual page 302

If neither USB Printer nor EPSON Stylus Pro 4000 appears
under Other devices, click Refresh or unplug the USB cable
from the printer, and then plug it into the printer again. Once
you have confirmed that these items appear, proceed to step 5.
5. Under Other devices, select USB Printer or EPSON Stylus Pro
4000, and click Remove. Then click OK.
When the following dialog box appears, click OK.
6. Click OK to close the System Properties dialog box.
7. Uninstall the printer software. See "Uninstalling the printer
driver" on page 131.
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Troubleshooting