Esc/P for setting page length in inch

Question

I need to set up ESC/P for page length in PHP which is 5.5 inch. My printer is LX300+ and the code is:

$page_length = Chr(27) . Chr(67) . Chr(0) . "5.5";

Is that correct way for Esc C 0 n (n=5.5). Does not seems to work right. Is there any way to put 5.5 in Chr()?

Should I set the printing page length in the printer itself or in the windows driver is enough? Thx!

Answer 1

Seems that setting page length by inch only works if increment is 1. I use set page length by line instead. Case close.