CUPS filter for thermal printer Epson TM-T20II
The linux driver provided on Epson site unfortunately doesn't work. It is x86 binary and doesn't work on Raspberry Pi.
Filter is provided as src (you can found a list of packages need to be installed in order to build it in the header of source). Also, printing of blank lines is optimized.
In order to re-compile the binary (e.g. on a Raspberry Pi), the following libraries must be installed:
sudo apt-get install libcups2-dev libcupsimage2-dev g++ cups cups-client
After that, make and install do the right thing.