5052ci with a Dp7100 doc feeder light copies

[toddanderson]

5052ci with a Dp7100 doc feeder light copies.
The copies are light when using the doc feeder. The copies are fine, good when using the
Table glass. The light copies only shew when using the doc feeder.
Replace the ccd, ran u411-u410 chart from the glass ok but when running the u411 chart through the
Doc feeder it gives errors 20.

[KYO_OEM]

Re: 5052ci with a Dp7100 doc feeder light copies

Service manual say:
Error 20/ Input gamma correction coefficient error
Set the original correctly and execute again.
Maybe U068 helpfull or check the scanner belt.
Bulletin 2ND-163(K112)
scanner belt.JPG