Have an HP Officejet 600. I followed an earlier thread suggestion for cleaning cartridges by resetting factory defaults. It instructed that if after reset lcd did not show to press "2" and it would come on. It didn't. Also, I've lost connection/communication to unit after replugging it back in. Plan to power down and up computer but wanted to see if there were any thoughts to this problem.
I was wondering what OS. you have ? I have a 610cl and my software is obsolete in windows 7.The printer works with the provided driver, but I can no longer use the software including clean test print ect.