<xs:simpleType name="ReceiptsToPrint" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:restriction base="xs:string"> <xs:enumeration value="PosReceipt" /> <xs:enumeration value="LuxuryReceipt" /> <xs:enumeration value="Both" /> <xs:enumeration value="NotSpecified" /> </xs:restriction> </xs:simpleType>