One front side of {HEAD ~ the cartridge} next to {TAIL ~ the opening} of the recess is still visible after insertion and can also protrude over the recess 
One front side of { HEAD ~ the cartridge } next to { TAIL ~ the opening } of the recess is still visible after insertion and can also protrude over the recess
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH