Chances are, you may run into an issue you can't install RIP software ( colorburstrip ) for Canon or Epson printers and the problem is usually caused because of launchd is using port 515.
You can tell this by running this command in terminal:
sudo lsof -i -P | grep 515
If you get an output from this command, you will see usually two lines showing for ip4 and ip6.
To resolve this issue simply uninstall cups-lpd:
sudo launchctl unload /System/Library/LaunchDaemons/org.cups.cups-lpd.plist
To see if it worked for you (even if you get errors) run the first command above again.
If you don't see those 2 lines output, your good to go. Install your software.
You can tell this by running this command in terminal:
sudo lsof -i -P | grep 515
If you get an output from this command, you will see usually two lines showing for ip4 and ip6.
To resolve this issue simply uninstall cups-lpd:
sudo launchctl unload /System/Library/LaunchDaemons/org.cups.cups-lpd.plist
To see if it worked for you (even if you get errors) run the first command above again.
If you don't see those 2 lines output, your good to go. Install your software.