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DRA-30A is not recognized.
If you use version 1.2 or later on a computer on which a version earlier than version 1.2 was used, DRA-30A will not be recognized. Read the section on updating the driver in the operation manual.
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When DRA-30A is connected by USB, communication errors occur during communication with the computer.
Connect DRA-30A to the USB hub that is connected to power supply (self-power capability).
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Two DC-7630 are displayed in the Add or Remove Programs list.
This occurs when version 1.1.4 or later of the software is set up on a computer on which version 1.1.3 or earlier is already installed. Open Add or Remove Programs from the Control Panel, delete DRA-7630 in the list, and then set up the new version.