The driver is included in Windows 10 by default. You don’t need to download anything – it’s in the list under Sharp when you follow Method 2.
Click here to visit the Sharp Support Page (Enter your model number AR-5618). sharp ar-5618 driver windows 10 64 bit
from the Sharp global or regional support site. It often works on Windows 10 64-bit. The driver is included in Windows 10 by default