Sorry it didn't work. Yesterday I was able to print to my 8600. Today I can't so something is very wrong. I couldn't even 'remove' the printer per your instructions.
Then I noticed in the troubleshooting steps that sometimes that modem causes a problem. Since I also started having some trouble with my modem a couple of weeks ago that could be it. I have a new modem coming on Monday and after I install that I'll try installing the printer again.