Epson DFX-9000 Reference Manual page 77

Uninstalling the USB device driver
When you connect the printer to your computer with a USB
interface cable, the USB device driver is also installed. If you
uninstall the printer driver, you also need to uninstall the USB
device driver.
Note:
Uninstall the printer driver before uninstalling the USB device driver.
After you uninstall the USB device driver, you cannot access any other
Epson printers connected with a USB interface cable.
Follow these steps to uninstall the USB device driver:
1. Follow steps 1 through 3 of "Uninstalling the Printer
Software" on page 75.
2. Select EPSON USB Printer Devices, and click Add/Remove
(or Change/Remove).
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2
Printer Software
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