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