Cartridge 24 preferably includes a lip seal that prevents {HEAD ~ ingress} of {TAIL ~ dust} into the cartridge 
of
Cartridge 24 preferably includes a lip seal that prevents { HEAD ~ ingress } of { TAIL ~ dust } into the cartridge
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH