More Questions:
As I cannot connect the printer by USB, I am considering a WLAN connection.
My main computer is connected to the internet by a router with deactivated WLAN and I am not changing this. But I have a second router, Targa WR 500 identical with Speedport 500. This router has no WPS. but WA2.
I am intending to connect this router to the Dell 4150 and activate a WLAN exclusively for the printer. I have printed out the F4580 information page including the Mac-number. But the manual requires to connect USB first, which does not work.
How can I configure the modem to recognize the printer without USB?
I already spent hours googling, so maybe someone here can help?