{HEAD ~ A second IC} is interfaced to the processor and, together with the processor, can be used to authenticate {TAIL ~ the first IC} and therefore the ink cartridge 
used to authenticate
{ HEAD ~ A second IC } is interfaced to the processor and , together with the processor , can be used to authenticate { TAIL ~ the first IC } and therefore the ink cartridge
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH