Sometimes my laptop recognises the printer; sometimes it won't. Sometimes the messages is "printer not detected", which changes after a minute or so to recognition and it prints. Sometimes there's an error message "printer is in an error state". The printer works fine via a USB cable: it's only wi fi that's the problem. I've tried rebooting, power on/off, everything I can think of - and it's a new problem. It ws working fine on wi fi until about a week ago.
