{TAIL ~ This toner mass information}, together with {HEAD ~ certain toner constants} and known parameters, is used by the logic and control unit to calculate the toners charge to mass ratio 
{ TAIL ~ This toner mass information } , together with { HEAD ~ certain toner constants } and known parameters , is used by the logic and control unit to calculate the toners charge to mass ratio
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH