[CQ] sharp arm 450/imagistics 4512 SKEW FROM ADF/SCANGLASS COPY OK

[Guest]

The machine is an imagistics 4512 (sharp arm 450 series) with skew from adf....scan glass copies are ok.
Where is the information about the reader adjustment screw on the left side of the reader in back and
how to make the reader level adjustment.

Any other thoughts on ADF skew from model will be appreciated.-Thanks.