The present invention relates to a developing apparatus for {HEAD ~ use} in electrophotographic copying machines and {TAIL ~ electrophotographic printers} 
in
The present invention relates to a developing apparatus for { HEAD ~ use } in electrophotographic copying machines and { TAIL ~ electrophotographic printers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL