blue light says on all the time. not sure if unit is off like some web info says. To really turn off button in back. not good. If you want to use USB connection it is a pain to get to work without using phone app. Can be done but you have to pretty smart to do it. Would not buy again.
Problems started at set up. It took me a night and Sat morning to get the WiFi to connect. I still don't know what it's issue is. Then there's the lack of labeling for the lights and buttons. Unforgivable design faults. But once connected it does a good job printing and scanning.
It doesn't work with my work computer as I cannot download the HP Smart software. And my Microsoft store is not letting me download HP Smart either. So, I guess I cannot use this printer.
The envelope printing is terrible. It is unreadable in quality. Everything else works fine. I ma very unsatisfied. I will need to use labels instead of envelopes.