On 25/06/2016 17:17, Emran M. wrote:
On Sat, 25 Jun 2016 16:11:09 +0100, N_Cook wrote:

+1

But the paper scans down in a vertical direction, which
means the rollers must be vertical.

Yet, the streaks are horizontal (in the opposite direction
in which the paper physically moves down through the scanner).


In that case the corona wire needs cleaning