I followed cknaplund's instructions above. I am using LMDE.
I have a usb cable attached to the printer. I am using CUPS 1.5.2. and I have logged in as root in the url shown below. I can't find AppSocket and I don't know the IP address of the printer.
When I look at the devices seen by my access point (router), I don't see the printer listed.
When I click print, I can choose and print to the printer
▼ ID ▼ Name User Size Pages State Control
HL2270DW-883 Unknown Withheld 113k Unknown processing sinceTue 05 Jun 2012 11:57:38 PM ADT
"Waiting for printer to become available."
I can't find a place where the printer states that it is 'offline'.
cknaplund's final instructions:
in browser, click printer, modify. Click AppSocket. socket://(ip
address of printer)