#Sensor Function
1 Sensor (ADF paper
present)
• Detects paper presence in the ADF tray
• Raises the pick arm after the last sheet to prepare for the next batch of
scanning
2 Sensor (ADF pick) Detects the leading edge of the incoming sheet and adjusts pick/feed timings
3 Sensor (ADF deskew) Detects skew of the incoming sheet and applies necessary deskew algorithm
4 Sensor (ADF 1st scan) Detects the paper about to be scanned at its back side
5 Sensor (ADF 2nd scan) Detects the paper about to be scanned at its front side
7018
Theory of operation
454