Thermal Printer Setup: Guide for Bluetooth, USB, and Network
Bought a thermal printer but confused about connecting it? Here's a guide for the three most common connection types.
Bluetooth (via RawBT)
Easiest for Android tablets. Needs: Bluetooth printer + RawBT app (free on Play Store). Power on printer, pair via Bluetooth settings, open RawBT, select printer, done. Pros: wireless. Cons: limited range (~10m), occasional re-pairing needed after restart.
USB (WebUSB)
Most stable. Plug the USB cable into the tablet (needs OTG support), browser asks for permission, allow, done. Pros: connection never drops. Cons: cable means printer must be near the tablet.
Network (WiFi/LAN)
For multi-device setups where several tablets need access to one printer. Connect printer to network, note its IP, enter IP and port in POS. Pros: any device on the network can print. Cons: more technical setup, static IP recommended.
Tip
Buy a printer that supports at least 2 connection types (e.g., USB + Bluetooth) for backup. And always do a test print after setup — don't discover problems during rush hour.