This invention relates to developer rollers used in {HEAD ~ electrophotography}, and more specifically, to {TAIL ~ the formulation} of such rollers as it affects their conductivity 
This invention relates to developer rollers used in { HEAD ~ electrophotography } , and more specifically , to { TAIL ~ the formulation } of such rollers as it affects their conductivity
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH