Show print history on Mac

When I opened the web based CUPS admin interface to show print history:-

http://localhost:631/jobs?which_jobs=completed

I got the "Internal Server Error" message.

To fix it, I used the following commands

sudo cupsctl --debug-logging
sudo cupsctl --no-debug-logging

Refs

http://osxdaily.com/2011/01/20/show-print-history-mac/

https://discussions.apple.com/thread/3510277?start=0&tstart=0