Star PassPRNT receives print data from an Android app and sends it to a Star Bluetooth Printer.
Your Android App can call Star PassPRNT by using URL schemes and pass print data made from HTML to Star PassPRNT then Star Printer prints that data.

Supported Star Printers are listed below.

Star Micronics Desktop Printers:
TSP650II F/W2.1 or later Bluetooth/Ethernet/USB
TSP700II F/W5.1 or later Bluetooth/Ethernet/USB
TSP800II F/W2.1 or later Bluetooth/Ethernet/USB
FVP10 F/W2.0 or later Bluetooth/Ethernet/USB
TSP100IIIBI F/W1.0 or later Bluetooth
TSP100IIIW F/W1.4 or later Wireless LAN
TSP100IIILAN F/W1.3 or later Ethernet
TSP100IIIU F/W1.0 or later USB
TSP100IV F/W1.0 or later Bluetooth/Ethernet/Wireless LAN/USB
BSC10 F/W1.0 or later Ethernet/USB
mPOP F/W1.0.1 or later Bluetooth/USB
mC-Print2 F/W1.0 or later Bluetooth/Ethernet/USB
mC-Print3 F/W1.0 or later Bluetooth/Ethernet/USB
mC-Label2 F/W1.0 or later Bluetooth/Ethernet/Wireless LAN/USB
mC-Label3 F/W1.0 or later Bluetooth/Ethernet/USB

Star Micronics Portable Printers:
SM-S220I　F/W3.0 or later　Bluetooth(StarPRNT)
F/W2.1 or later Bluetooth(ESC/POS)
SM-S230I　F/W1.0 or later　Bluetooth(StarPRNT)
F/W1.0 or later Bluetooth(ESC/POS)
SM-T300I　F/W3.0 or later　Bluetooth(StarPRNT)
F/W2.5 or later Bluetooth(ESC/POS)
SM-T400I　F/W3.0 or later　Bluetooth(StarPRNT)
F/W2.5 or later Bluetooth(ESC/POS)
SM-L200 F/W1.1 or later Bluetooth
SM-L300 F/W1.0 or later Bluetooth