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