"paul@ubuntu:~$ sudo foomatic-cleanupdrivers
Password:
PM760pl.upp.xml has an empty command line, deleted!
PM820pl.upp.xml has an empty command line, deleted!
Stc680pl.upp.xml has an empty command line, deleted!
Stc760pl.upp.xml has an empty command line, deleted!
Stc777pl.upp.xml has an empty command line, deleted!
Stp720pl.upp.xml has an empty command line, deleted!
Stp870pl.upp.xml has an empty command line, deleted!
bj8gc12f.upp.xml has an empty command line, deleted!
bj8hg12f.upp.xml has an empty command line, deleted!
bj8oh06n.upp.xml has an empty command line, deleted!
bj8pp12f.upp.xml has an empty command line, deleted!
bj8ts06n.upp.xml has an empty command line, deleted!
bjc6000b1.upp.xml has an empty command line, deleted!
bjc610a1.upp.xml has an empty command line, deleted!
bjc610a2.upp.xml has an empty command line, deleted!
bjc610a3.upp.xml has an empty command line, deleted!
bjc610a4.upp.xml has an empty command line, deleted!
bjc610a5.upp.xml has an empty command line, deleted!
bjc610a6.upp.xml has an empty command line, deleted!
bjc610a7.upp.xml has an empty command line, deleted!
bjc610a8.upp.xml has an empty command line, deleted!
bjc610b1.upp.xml has an empty command line, deleted!
bjc610b2.upp.xml has an empty command line, deleted!
bjc610b3.upp.xml has an empty command line, deleted!
bjc610b4.upp.xml has an empty command line, deleted!
bjc610b6.upp.xml has an empty command line, deleted!
bjc610b7.upp.xml has an empty command line, deleted!
bjc610b8.upp.xml has an empty command line, deleted!
capt.xml has an empty command line, deleted!
cljet5c.xml has an empty command line, deleted!
gimp-print.xml has an empty command line, deleted!
gutenprint.xml has an empty command line, deleted!
iwlo.xml has an empty command line, deleted!
iwlq.xml has an empty command line, deleted!
la70t.xml has an empty command line, deleted!
lbp660.xml has an empty command line, deleted!
lj5mono.xml has an empty command line, deleted!
lxm3200m.xml has an empty command line, deleted!
lxm3200p.xml has an empty command line, deleted!
lxx74.xml has an empty command line, deleted!
m2300w.xml has an empty command line, deleted!
m2400w.xml has an empty command line, deleted!
necp2x6.upp.xml has an empty command line, deleted!
nwp533.xml has an empty command line, deleted!
omni.xml has an empty command line, deleted!
pbm2ppa.xml has an empty command line, deleted!
pegg.xml has an empty command line, deleted!
pxlcolor.xml has an empty command line, deleted!
ras1.upp.xml has an empty command line, deleted!
ras24.upp.xml has an empty command line, deleted!
ras3.upp.xml has an empty command line, deleted!
ras32.upp.xml has an empty command line, deleted!
ras4.upp.xml has an empty command line, deleted!
ras8m.upp.xml has an empty command line, deleted!
s400b1.upp.xml has an empty command line, deleted!
slap.xml has an empty command line, deleted!
sparc.xml has an empty command line, deleted!
st640ihg.upp.xml has an empty command line, deleted!
st640p.upp.xml has an empty command line, deleted!
st640pg.upp.xml has an empty command line, deleted!
st640pl.upp.xml has an empty command line, deleted!
st640plg.upp.xml has an empty command line, deleted!
stc2_h.upp.xml has an empty command line, deleted!
stc2s_h.upp.xml has an empty command line, deleted!
stc300bl.upp.xml has an empty command line, deleted!
stc300bm.upp.xml has an empty command line, deleted!
stc500ph.upp.xml has an empty command line, deleted!
stc600p.upp.xml has an empty command line, deleted!
stc600pl.upp.xml has an empty command line, deleted!
stc640p.upp.xml has an empty command line, deleted!
stc740p.upp.xml has an empty command line, deleted!
stc740pl.upp.xml has an empty command line, deleted!
stc800p.upp.xml has an empty command line, deleted!
stc800pl.upp.xml has an empty command line, deleted!
stc_h.upp.xml has an empty command line, deleted!
stc_l.upp.xml has an empty command line, deleted!
t4693d2.xml has an empty command line, deleted!
t4693d4.xml has an empty command line, deleted!"

I just was able to add a printer so I guess it's working now.