I think I recall a thread here about that, you'll have to do a search. My 1530 was supposed to be shipped on Friday, but it's been delayed until Wednesday. My configuration is almost identical to your configuration, except my lid is midnight blue ("Blue Beauty").
Did you check what company supplies the LED display ? How is it ?
Also remember to mash your finger down a bit on the strip. If you haven't noticed your fingerprint isn't perfectly flat, it's rounded. And if you don't press it down onto the scanner it's not going to get a full print, only a very small portion of it. If you smash your finger down onto it. The print flattens out and the scanner should get a good read.