Yeah that seems to have worked from the one location I tested it from (one of the ones where it wasn't working earlier)
However after all the earlier testing the printer has run out of toner so I will wait till Monday to confirm with user >_<
Thanks go to hustedj in this thread
http://www.experts-exchange.com/Hardware/Peripherals/Printers_Scanners/HP/Q_23165730.html however choosing Start print after last page is spooled was not needed.
_b