{TAIL ~ A rubber developer roller} having {HEAD ~ a quaternary ammonium material} as an antistatic agent to achieve an approximately one order of magnitude increase in the level of conductivity 
{ TAIL ~ A rubber developer roller } having { HEAD ~ a quaternary ammonium material } as an antistatic agent to achieve an approximately one order of magnitude increase in the level of conductivity
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD 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