How to Connect a Fiscal Printer in Chrome Without Drivers

What is WebSerial?

WebSerial is an API built into Chrome that allows web applications to communicate with USB devices directly. No drivers, DLL libraries or software installation needed. Works on Windows, Mac and ChromeOS.

Supported fiscal printers

Facturino uses the ISL (International Standard Link) protocol — the standard for Balkan fiscal printers.

• Datecs FP-700, FP-700X, FP-2000, FP-800 and other models
• Tremol FP01-KL, S25, M20 and others
• Daisy Compact-S, Expert and the rest
• Any other ISL-compatible printer

Step by step: connecting

1. 1

   Plug the printer into USB

   Most fiscal printers have a USB port alongside COM. Plug the USB cable into your computer or tablet.

2. 2

   Open Facturino in Chrome

   Go to app.facturino.mk and navigate to Settings → Fiscal Devices.

3. 3

   Click "Connect Device"

   Chrome will show a list of USB devices. Select your fiscal printer (usually shows as "USBxxxx" or "Datecs FP-700").

4. 4

   Done!

   The printer is connected. The green dot in the POS interface shows the fiscal printer is active. Next time you open Chrome, it auto-connects.

VAT groups (A/B/V/G)

Facturino automatically maps items to VAT groups per Macedonian law:

• Group A: 18% VAT (standard rate)
• Group B: 5% VAT (reduced — medicines, books, school supplies)
• Group V: 10% VAT (reduced — food, hospitality)
• Group G: 0% VAT (exempt)

WebSerial vs. COM port advantages

• No drivers: no installation, no DLL, no Windows dependency
• Works on every OS: Windows, Mac, ChromeOS
• No technician: plug USB, select device, done
• Auto-reconnect: Chrome remembers the device and reconnects automatically
• Secure: user must explicitly approve device access

Common issues and solutions

1. 1

   Printer not showing in list

   Check that the USB cable is properly connected. Some printers need a USB-B cable (square connector). Restart the printer and refresh Chrome.

2. 2

   Chrome asks for permission every time

   The first time Chrome asks for permission (user gesture). After approval, Facturino remembers and auto-connects next time.

3. 3

   Prints strange characters

   Facturino uses CP1251 encoding for Cyrillic. If your printer doesn't support Cyrillic, contact us for help.