I can confirm the behaviour as described by Dror Cohen - this is my result when adding a printer (the ENVY Photo 7100 series in that case) entering the IP address manuallly:
hp-setup[5842]: debug: Cache miss: envy_photo_7100_series
hp-setup[5842]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-setup[5842]: debug: Searching for section [envy_photo_7100_series] in file /usr/share/hplip/data/models/models.dat
error: No devices found on bus: net
When using "auto detect" mode, I get this result (so the printer seems to be not recognised at all:
hp-setup[5842]: debug: Cache miss: envy_photo_7100_series
hp-setup[5842]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-setup[5842]: debug: Searching for section [envy_photo_7100_series] in file /usr/share/hplip/data/models/models.dat
error: No devices found on bus: net
At the time of trying this, the printer has already been set up (and is working properly) using the "normal" CUPS interface.
So actually I can print, but cannot use the scanner.
I can confirm the behaviour as described by Dror Cohen - this is my result when adding a printer (the ENVY Photo 7100 series in that case) entering the IP address manuallly:
hp-setup[5842]: debug: Cache miss: envy_photo_ 7100_series hplip/data/ models/ models. dat 7100_series] in file /usr/share/ hplip/data/ models/ models. dat
hp-setup[5842]: debug: Reading file: /usr/share/
hp-setup[5842]: debug: Searching for section [envy_photo_
error: No devices found on bus: net
When using "auto detect" mode, I get this result (so the printer seems to be not recognised at all:
hp-setup[5842]: debug: Cache miss: envy_photo_ 7100_series hplip/data/ models/ models. dat 7100_series] in file /usr/share/ hplip/data/ models/ models. dat
hp-setup[5842]: debug: Reading file: /usr/share/
hp-setup[5842]: debug: Searching for section [envy_photo_
error: No devices found on bus: net
At the time of trying this, the printer has already been set up (and is working properly) using the "normal" CUPS interface.
So actually I can print, but cannot use the scanner.