ESCPOSTester is a stand-alone application that allows you to test your Reliance Thermal printer. You can print text files, ESC/POS data files, and raw hex files. There are control buttons to individually test each of the cut, present, eject, and reject actions.
Note: In order to use the reject action, you printer must have Retraction Enabled via the Reliance Tools application available for download here https://pyramidacceptors.com/app/reliance-tools/