Have an 8150, when it prints (paper is loaded 11 X 8 1/2), there are lines (varying in thickness from pencil lines to 2", the more you print, the worse it gets) across the page. You can still see the document, but the black lines are over it. Tried 3 different toners, (1 HP and 2 compatible), installed maintenance kit (it needed a fuser anyway) so it's not the transfer. It will also repeat down the page after awhile, about 3" intervals, like the drum is not being cleaned. Engine board? HVPS? Machine is an hour away and have been there twice, would like to make the third time the charm.... Appreciate any help. Jeff M.
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