Epson RC180 Manual page 256

Maintenance 8. Trouble Shooting
(3) The [Performance and Maintenance] dialog appears.
(4) The [System Properties] dialog appears.
(5) The [Device Manager] dialog appears.
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Click the <System> icon.
Select the [Hardware] tab and click the <Device Manager> button.
Click <Universal Serial Bus controllers> and make sure that "EPSON Robot
Controller RC170 (or RC180)" is registered.
RC180 Rev.17