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