sudo dpkg --configure -a
Setting up cupsys (1.3.2-1ubuntu7) ...
usage: update-rc.d [-n] [-f] <basename> remove
       update-rc.d [-n] <basename> defaults [NN | sNN kNN]
       update-rc.d [-n] <basename> start|stop NN runlvl [runlvl] [...] .
                -n: not really
                -f: force
dpkg: error processing cupsys (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 cupsys