{TAIL ~ The multiple print engine} 7, wherein {HEAD ~ the raster image processor} comprises a single raster image processor 
{ TAIL ~ The multiple print engine } 7 , wherein { HEAD ~ the raster image processor } comprises a single raster image processor
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH