Checked and cleaned machine , including optics and the charge unit . Optics were dusty dirty , not the problem though . Ran some pages from SP 001 , they were fine . Copies from glass were fine also , ran about 20 . After cleaning , the 1st 2 pages through the RADF , wide feed , on the rear side of the image at about an inch in from side there was a dark , kind of jagged looking black band down the entire image , it was about 1/2 inch wide and the machine gave me an error to clean the slit lens , which I had just done , checked it anyway , no problem. Reset and make more pages with the RADF , run about 60 more pages , 1 and 2 sided , never had the problem again . Test lamp in diagnostics , seems to be on evenly full and not flickering . Intermittent problem , customer had samples too , but only once in awhile they said . Only about 100 K since Maintenance kit installed .
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