- https://github.com/mike42/escpos-php/blob/master/example/receipt-with-logo.php
- https://mike42.me/blog/2015-03-getting-a-usb-receipt-printer-working-on-linux
- https://github.com/mike42/escpos-php/issues
- https://github.com/mike42/escpos-php/tree/master/example/interface
- http://stackoverflow.com/questions/25973046/printing-to-pos-printer-from-php
- https://ubuntuforums.org/showthread.php?t=1486761
- https://www.owlfish.com/thoughts/winipp-cups-2003-07-20.html
- http://lifeonubuntu.com/setting-up-cups-and-installing-local-printer-in-ubuntu-server/
- http://www.printmanager.com/cms.php?aid=82&fullpage=1&support=8
- https://ubuntuforums.org/showthread.php?t=1339956
- https://ubuntuforums.org/showthread.php?t=1268453
- https://ubuntuforums.org/showthread.php?t=2171712
- https://www.owlfish.com/thoughts/winipp-cups-2003-07-20.html
- http://gnu-linux-slackware.blogspot.co.id/2009/09/printing-via-samba-from-windows-clients.html