If your POS software crashes because the COM port changes (e.g., COM3 to COM5 after a reboot), the repack includes PortMapper.exe . This creates a static virtual port (like COM_EPR303 ) that never changes, even if you unplug the USB cable.
The official manufacturer (often distributed under names like "EasyPOS," "Xprinter," or "CITIZEN" clone boards) hosts drivers on their support portal. easypos epr 303 printer driver download upd repack
: Provides specific EZ-P003 Drivers which often overlap with the EasyPOS EPR series. If your POS software crashes because the COM port changes (e