When you first connect to the printer, you should initialise it. These examples are taken from the output of demo.php. Numbers are simply passed as a character. Commands begin with ESC or GS, and are followed by a printable character, and sometimes some numbers Regular text is simply sent to the printer, separated by line-breaks. Command structureįour specific ASCII characters make appearances in the command sequences- Abbreviation I’ll step through this print-out, as it demonstrates all of the basic ESC/POS features. Incidentally, the receipt printed in the above video is an example from the escpos-php repository. The most useful reference for the protocol is this Epson FAQ, which I’ve used previously to implement an ESC/POS printer driver for PHP. Commands start with an ESC character (ASCII 27).Most modern receipt printers support it in some form.ESC/POS is the command set which makes receipt printers print-īefore we begin, there’s three things you need to know about ESC/POS:
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