[Jamming] Ricoh Aficio 3260C ARDF Paper jam while it's scanning duplex only. (B132/B200)

[inho71]

Hello,
I need help which part related this issue.
While it's scanning with 2sided(duplex), it's paper jam at ARDF Original exit 2 exit roller area.(B652-4726)
Cleaned all rollers and replaced reverse roller (A859-2241) and Feed belt(A806-1295) and Pickup roller on Original feed 2.
Please, give me a advise
Thanks in advaince.