Having finally got my new HP photosmart premium fax all in one and my new sky router to work with mgcc's help the printer keeps flashing a "printer error" message on its screen and tells me to switch it off then on again. After doing that it settles down and I can print normally. However even if I do not print but just leave it for 20 mins the same message flashes up again. I have tried to find a fix on HP website and trawled through FAQ's but cannot find anything. Any ideas?