QZ Tray is free Windows software that sends ESC/POS commands directly to your USB thermal printer — no browser dialog, perfect receipt every time.
1
Download QZ Tray
Visit qz.io/download → Download for Windows → Run installer.
2
It Runs in System Tray
After install a Q icon appears near the clock. It auto-starts with Windows every time.
3
Plug in USB Thermal Printer
Install printer driver. Confirm it shows in Windows Printers & Scanners.
4
Click "💻 QZ" in header
Badge turns green when connected. Then generate a bill → QZ tab → select printer → Print!
⚠️ QZ Tray must be running when you print.
Web Bluetooth lets Android Chrome print directly to a Bluetooth ESC/POS thermal printer — no extra app, no cable needed.
1
Get a Bluetooth Thermal Printer
Recommended: Xprinter XP-58IIK · MUNBYN ITPP941B · Rongta RP326
2
Turn On Printer
Power on the printer. It will broadcast Bluetooth automatically.
3
Open in Chrome on Android
Web Bluetooth only works in Google Chrome.
4
Click "📱 BT" in header
Chrome shows nearby printers. Select yours → Pair. Badge turns blue.
5
Generate Bill → BT tab → Print!
⚠️ Web Bluetooth works only in Chrome on Android.