The OFC fingerprinting and visa photo processing are the stages of US admission involving the OFC. Collecting biometric data at the OFC involves a very simple process of scanning your fingerprints. You are required to submit your documents there.
Your photos will be captured at the office for verification and documentation purposes. The next step after data submission at the OFC is the visa interview. You will be visiting the OFC once again after the visa interview to collect your passport.