User's Manual

2. 6 Bri ght ness and Cont rast Cont rol s
1) I f you cl i ck <Aut o Adj ust > but t on, Devi ce Conf i gurat i on wi ndow
appears as shown bel ow.
2) I f you cl i ck <Previ ew>, t he f i ngerpri nt i mage i s capt ured. I f i t
appears t oo bri ght as bel ow, adj ust ‘Bri ght ness’ or ‘Cont rast ’.
I f i t i s st i l l bri ght , i ncr ease ‘Gai n’ val ue one l evel at a t i me.