The Complete Guide to 2" & 3" Bluetooth Thermal Printing

Why Switch to Thermal Receipts?

Standard A4 laser and inkjet printers cost ₹15,000+ upfront and require expensive toner replacements, electricity backups, and dedicated desktop computers. In contrast, portable Bluetooth thermal printers:

• Cost between ₹1,500 to ₹3,500 on Amazon/Flipkart.
• Require zero ink or ribbon (prints via thermal heat on thermal paper rolls).
• Run on built-in rechargeable batteries for 12+ hours during power outages.
• Print a complete receipt in under 2 seconds.

Choosing Between 58mm (2-Inch) and 80mm (3-Inch)

58mm (2-Inch): Ideal for small grocery stalls, street vendors, delivery boys, and fast cash memos where counter space is limited.

80mm (3-Inch): Recommended for retail shops, restaurants, hardware stores, and wholesalers needing itemized GST tax breakdowns (HSN, CGST, SGST) on a wider paper format.

How InvoiceFine Communicates via ESC/POS

InvoiceFine implements the industry-standard ESC/POS command set natively in JavaScript/C++ platform code. This eliminates the need for messy third-party print service plugins (like RawBT).

1. Turn ON your Bluetooth printer.
2. Pair in Android Settings (PIN is usually 0000 or 1234).
3. In InvoiceFine, choose Thermal 3" or Thermal 2".
4. Tap Print and your bill emerges instantly!