Inside the Device Manager, right-click the Datecs COM entry, go to Properties > Port Settings > Advanced , and manually change the COM Port Number to a lower unassigned slot between COM1 and COM4 .

To configure the Datecs FP-300 on a Windows POS system, follow this sequence:

Access to verify active physical communication hubs. 2. Executing the Driver Installer

Uninstall the existing driver through Device Manager. Restart your PC, and run the 2021 installer again before plugging in the printer. Issue 2: POS Software Cannot Find Printer

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Supports up to 2,750 daily reports and includes a built-in GPRS transmitter for tax authority reporting in certain regions. 4. Troubleshooting Tips Device Not Found: If the printer is unresponsive on USB, try toggling the USB interface enabled/disabled setting in the printer's hardware menu. Fatal Errors: If the printer displays "FATAL ERROR: 4"

Open the Windows (press Windows Key + X, then select Device Manager). Expand the Ports (COM & LPT) section.