I am looking for a solution too. I don’t have a receipt printer yet, but before I buy one I want to make sure it works.
I’ve read maybe a solution is to change margins to and disable header and footer in the browser (Chrome/Firefox). Maybe you also need to change a small setting in the printer to cut at document instead of page (or the other way around).
Could somebody try this?
Maybe a module fix is needed to end the print with a linefeed or pagebreak.