A client is using an Epson TM-U590 single sheet printer. This printer has a top print margin of 18.9mm, but I need to print prior to that.
There is a way to achieve this by reverse feeding the paper. To achieve this, I need to send the printer command ESC K 55 before every page.
There even is a field in the printer driver to enter commands which are then sent before every page.
My problem is: in what format do I enter this command? Decimal numbers, like 27 75 55? Or hex, like 1B 4B 37? Or in some other funky style?