Yes I have tried to contact him.

https://addons.opera.com/en/extensions/details/print/

The Printer add on button does not print.
It sends the item to the icon tray of "my printer" in lower right corner of my icon tray, then
it shows "1" item waiting to print.Then it disappears
and nothing happens on the opera browser. If I switch browsers to
Chrome or Mozilla Firefox my
HP wireless printer works ! What gives ?
NEED A FIX HERE GUYS.