However, in STEP 8101, as an image of a multivalue image , the image is stored into the DRAM as an image of 64 lines or more in the sub scanning direction for {HEAD ~ the purpose} of detecting {TAIL ~ dust} 
However , in STEP 8101 , as an image of a multivalue image , the image is stored into the DRAM as an image of 64 lines or more in the sub scanning direction for { HEAD ~ the purpose } of detecting { TAIL ~ dust }
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 OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL