In a high-volume restaurant kitchen, Bluetooth printers are a recipe for dropped tickets. A waiter walks 10 feet too far, the signal disconnects, and a clay-oven or bar order vanishes. For robust kitchen order ticket (KOT) operations, network printers (LAN or Wi-Fi) running ESC/POS protocols are the industry standard.
Setting them up doesn't require hiring an IT consultant. Follow this step-by-step guide to connect your Android billing tablet or POS app directly to a thermal printer.
Why LAN/Ethernet wins over Bluetooth
Bluetooth works well for retail counters, but fails in busy kitchens. Ethernet (LAN) cables route printing packets reliably through local routers. Even if your external internet connection drops, the local Wi-Fi router continues routing printing packets from your Android billing tablets to LAN receipt printers instantly.
Allocating a Static IP address
By default, routers assign dynamic IP addresses (DHCP) that change when a printer restarts. To prevent connection drops, configure your printer to use a static IP address outside your router's DHCP range (e.g., 192.168.1.150).
- 1Connect the printer to a computer using a USB cable.
- 2Open the printer's utility software (supplied by Epson, TVS, or Citizen).
- 3Navigate to Network Settings and select 'Static IP'.
- 4Enter the chosen IP address, subnet mask (typically 255.255.255.0), and gateway (router IP).
- 5Save settings and reboot the printer.
Connecting the POS app
Once the static IP is assigned, open the Indostra billing or station settings on your Android tablet:
- Navigate to Settings > Printer Setup.
- Add New Printer and select Connection Type: Network (LAN/Wi-Fi).
- Enter the printer's static IP address (e.g., 192.168.1.150) and port number (default is 9100).
- Select the print ticket format (typically 3-inch/80mm or 2-inch/58mm).
- Tap 'Print Test Page' to verify connectivity.