A pressing member is pressed against the outer periphery of the developer carrier for exerting {HEAD ~ a pressure} on the drive roller via {TAIL ~ the developer carrier} 
via
A pressing member is pressed against the outer periphery of the developer carrier for exerting { HEAD ~ a pressure } on the drive roller via { TAIL ~ the developer carrier }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL