How to scan documents on a SingTech smartphone or tablet

SingTech Infinity L1 Plus SingTech Infinity L1 Plus
SingTech Infinity I-note SingTech Infinity I-note
SingTech i-Note 2 SingTech i-Note 2
SingTech I-Crystal SingTech I-Crystal
SingTech H30 SingTech H30
SingTech E11 SingTech E11
SingTech A33 SingTech A33