Wrong Printable Area and Paper size

[tanqueta]

When I send to print in a ticket printer the paper size in printer properties is like 80mmx297mm. It is ticket fixed width and A4 height. OK, so in my app when I create the ticket PDF they are 80mm x (dynamic taller). So, I need you to make an option to set the printeable area exactly like the first page of the PDF size. I did this change in your code and the printer cut the paper just after the ticket finish. With your code the ticket came along with a long white paper waste. Can this be possible?

TIA.