Originally Posted by
BigLar
Testing: When copying either from the glass or the ADF, both units perform flawlessly.
When scanning from the glass, both units perform perfectly.
However, when scanning from the ADF, both units show a black streak down the middle.
Hmm, normally when I see that, it's a sign of some dirt in that little separate area of the glass that's often there for the adf feeder, but then I'd expect that would still be there for when you do a copy from the adf if that was true. I doubt you'd find a loose cable in there, it likely all goes to the main board with the same cable, and anything beyond that would be on the main board. And for it to be on more than one unit? Really weird.