Bizhub C258 Skewed copies frpm adf

[tekkie]

Help appreciated
Im getting skewed copies from DF only copies from glass are ok,
Its a Bizhub C258 with a DF 629.Ive serviced the DF fully and set up all adjustments as per the manual and when I set up the adjustment in service mode for skew I get the skew well within the tolerance range.
I do tests and all seems fine then starts skewing again help appreciated please.
Prints and copies from the glass are all ok

[HoonBoy]

If the ADF itself is adjusted and it's still skew then you can adjust the pressure of the white rollers in cover. Open pickup cover and loosen screw on front the adjust pressure.

[Synthohol]

if you did all the factory adjustments, next step is to make copies and skew the feeder by hand left or right. just push the corners of it and when you see which way gives the straight copy you will make the physical adjustment accordingly.
you can also lift the front left corner of the scanner with about 10 lbs of force and make a copy as well. if that fixes the skew they bent the frame by something heavy on it or leaning on it.