xerox B7030 Quality priblem

[mkdirs]

hello all
i have an issue when run a copy from the feeder some times i get noisy result , also when i run a copy from the glass aria all the time i get noisy output
i replace CCD same result i check the CCD Cable all is ok also i check the flat cable also its ok
i upgrade software same problem
when i print local report or from driver the quality is so good
i attach a picture

any one know what's going there!!

b7030.png

[adriansto]

Check the cable of the full and half scan carriage, the rails, the mirrors do not vibrate. Also you can perform the scanner alignment.
Then change the scan motor to eliminate the mechanical and optical problems.