RICOH AFICIO 1022 cannot get the image to line up on duplexing

[TEKK09]

Can get both sides perfectly centered if placed on glass, but then regular copying is off. Can get both sides within 2~3mm of perfectly centered image using ADF, but then regular one-sided is off.

Did these adjustments:

page 6-36 - internal test print "Registration - Leading Edge/Side-to-Side" adjustment (successful)

page 6-41 - "ADF Image Adjustment"

What am I missing?

[LNorris]

Make sure the Duplex Margin, in User Tools > Copier Features, is set to 0 (default to 5mm / 0.2inch).

[TEKK09]

Make sure the Duplex Margin, in User Tools > Copier Features, is set to 0 (default to 5mm / 0.2inch).

YOU NAILED IT!
That adjustment shows up at the bottom of the display when the duplex button is touched. Another mystery solved. Thanks a million...