It won't speed up normal boots, but it will get rid of the interval checks that fsck performs on that partition. So, yes.
Originally Posted by TWO
Yeah, disabling it as a bootup service does not remove it from the system. Most installed services still have a run script in /etc/init.d. You can start cupsys by typing:
Edit: If I disable cupsys, when I come to need a printer which I infrequently do, will it detect it as normal?
I do this with several services I use only occasionally.
sudp /etc/init.d/cupsys start