In addition, said other fixing device or devices are in the heated state despite the fact that they are not used, the device is thermally deteriorated gradually with the result of {HEAD ~ shortening} of {TAIL ~ the service life} 
of
In addition , said other fixing device or devices are in the heated state despite the fact that they are not used , the device is thermally deteriorated gradually with the result of { HEAD ~ shortening } of { TAIL ~ the service life }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL