https://www.virtualbox.org/manual/ch03.html#serialports
printer manual:
printer driver for winblows 9X, NT, 2000, XP:
debian linux stty man page:
... and example of esc/pos printing...
starting at line 26 of PrintESCPOSController.php in the linked bellow...
https://www.neodynamic.com/articles/How-to-print-raw-ESC-POS-commands-from-PHP-directly-to-the-client-printer/
... and more "notes"... http://scruss.com/blog/tag/stty/
starting at line 26 of PrintESCPOSController.php in the linked bellow...
https://www.neodynamic.com/articles/How-to-print-raw-ESC-POS-commands-from-PHP-directly-to-the-client-printer/
... and more "notes"... http://scruss.com/blog/tag/stty/