Barry Yu writes:

> Would appreciate any input that can enable me in F12 to make use of wi-fi

> printer HP Photosmart Plus B209a-m, when connected with usb cable it
works 
> fine but can't setup the wireless connection.

A quick Google search found a manual for this printer. Which, I'm sure you 
also have. After you direct your attention to page 5 of this manual, you 
will discover that this printer does not like standard 802.11 networks, but

it really wants a wireless router that supports some mutation called a
"WiFi 
Protected Setup". Basically, a wi-fi router that, in addition to supporting

ordinary wi-fi clients, the router also features a magical button that you 
press first, the press a matching magical button on this printer's display,

and the printer established a connection to the router. It's all in your 
manual.

So, unless your wi-fi router has this magical button, you're somewhat
boned. 
But, according to the following pages in the manual, it's possible to get 
this router working with a standard wi-fi router, but you must configure it

through a USB connection using the supplied Windows software. I haven't 
tried, but I'm rather skeptical that there's a Linux equivalent for this 
setup software. So, you're still boned.

And, in either case, it's not clear what the printer would look like over 
wi-fi. Hopefully, it would look like a CUPS or an lpr host, and once you 
reconfigure your wi-fi router to turn off client isolation, you should be 
able to set it up like any other CUPS or an lpr-hosted printer.