This allows {HEAD ~ the image forming apparatuses} to mutually inform {TAIL ~ the processing statuses} prior to assignment of the print data 
to mutually inform
This allows { HEAD ~ the image forming apparatuses } to mutually inform { TAIL ~ the processing statuses } prior to assignment of the print data
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH