Same configuration as yours, and I just accessed http://localhost:631 successfully.

Jobs > Show Completed Jobs had eight entries, all like

Code:
ID	Name	User	Size	Pages	State	Control
Canon_LBP6000_LBP6018-248 	Unknown 	Withheld 	3385k 	Unknown 	completed at
Sat Jul 1 04:57:14 2017

but no useful info.

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire