Hello Roy,
I appreciate your concern re Library/Printers. However, since there is only one folder there named QTR, unless I'm having a really bad day it would be very unlikely that I would delete the wrong folder. I say this because I always use this procedure before installing a new Epson Driver. Of course all of the other necessary deletions are done as well, and than the Epson folder in Lib/Printers is the last to go. I've followed this method for many years and have never encountered issues due to left-over files from the previous printer driver.
Now back to my original post. I take it then that as long as I finish step # 3 I should be good to go. The last three steps I know from previous experience.
Thanks for the reply Roy,
Gary