fingerprint for I-485

I submitted my I-485 on Oct. 2002, my first fingerprint was taken on Dec. 2002, my second fingerprint was taken on Aug. 2004 in Baltmore, MD center. The first fingerprint was taken on a machine, but the second one was on paper-based. Does anyone know how long will it take for the fingerprint result go to USCIS? My online status is still the same. I really appreciate if someone can share your experience and information. Thanks.