Question about Umax Astra 1220U Flatbed Scanner

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I have a replacement universal AC/DC adapter for my scanner ...

..and i need to know thge configuration of the ring tip & sleeve...
..is the tip of the adapter plug set at positive or negative?....
this adapter will be used for my 6400 Umax scanner...thanks

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This should be shown right next to the jack on the unit as well as the voltage. If not it should be in the user manual.

Posted on Dec 19, 2008

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