Removing all printer stuff I don't use any printers now, but I have in the past.
Systems Preferences / Printers &amp; Scanners shows "No printers are available".
However, /Library/Printers still contains over 200Mb of stuff.

How can I clean the contents of /Library/Printers and any other folders that contain printer stuff?

I suppose /Library/Printers protected by SIP and so sudo rm will not work, nor is recommended.

I'm running El Captain 10.11.6 (15G21013).
Apple says it is safe to remove the content of /Library/Printers: https://support.apple.com/en-us/HT203343#remove.

I did that after resetting the printing system, just to be sure.