The cupsys packages (and all occurences of "cupsys" in the names of
other packages) should be renamed to "cups". First, no one who I have
asked could tell me why in Debian and derivatives the CUPS package is
called cupsys and not cups. Second, this is very awkward when it comes
to user support (You do not know the user's distro and tell him
"/etc/init.d/cups restart") and when trying to create
distro-independent LSB-based printing-related packages, like printer
drivers from a printer manufacturer.
I am the leader of the OpenPrinting project at the Linux Foundation
and I have developed the LSB DDK to create distro-independent driver
packages. The RPM macros which I have created to generate maintainer
scripts which work with both Debian and non-Debian distros look really
ugly. So cupsys should really be renamed.