1. every morning when I switch on the printer it powers up with both green and red leds on and "Diagnosys..." on the lcd, then it may stay in this condition forever. I hear the usual starting sound (as something is running) but after that nothing happens and nothing works, also the keyboard (is not possible to enter menues and so on). After that I need to try to power off and on several times so that the printer can complete the startup.
2. From the same day I had the problem I had also to connect the printer using an USB cable because seems that the ethernet interface is dead.