I have installed Sharp AR-5618 printer in my computer. But when I check in device manager I can see there are two icons with name Sharp Ar-5618 and Sharp Ar-5618(copy1). But I'm unable to remove these printers. Especially both printer doesn't work simultaneously. If Ar-5618 is work, another one will not be work. If copy 1 is work other one will not be worked. Please help me solve this problem.