Uninstall Scanner Drivers

Hi. I'm hoping someone can help me.

I used to use a Canon scanner, which I have no replaced. I noticed that I still get the drivers appearing briefly in my icon dock when I start the machine, so I assume they're running a process that I no longer need.

How do I get rid of them? They're in the Users / Shared / Library / N067U folder, and is called 'N067U Bundle'

Deleting doesn't work - because they're in use on startup, so can't be deleted.

Many thanks.

Richey