This library has been deprecated. A new version is available under the name ReceiptPrinterEncoder and is backwards-compatible with this library.
If you are still using an older version of ThermalPrinterEncoder and need help, please use the look at the documentation for version 2.1.
If you have upgraded to version 3.0 of this library, understand that it currently is currently just a wrapper around the new ReceiptPrinterEncoder library. For instructions on how to use it look at the documentation for ReceiptPrinterEncoder.