By default the USB port is disabled on these Sharp models. To enable the USB port on the Sharp MX-B350P, AR-B352PT, MX-B450P and AR-B452PT, you enter simulation mode and switch it on. Here are the exact steps.
How to enable the USB port on the...
By default the USB port (Type B) is disabled on these models. To enable the USB port on the Sharp BP-20M22, BP-20M24, BP-20M28 and BP-20M31, you enter simulation (service) mode and switch it on. Here are the exact steps.
How to enable the USB port...