Skew Correction Mechanism - Ricoh MP 7503SP Field Service Manual

5. Detailed Descriptions
• When more than one original feeds this increases torque above the limit of the spring loaded
torque limiter which reverses the rotation of the ADF separation roller against the rotation the feed
belt above.
• The bottom sheet reverse feeds while the sheet above continues to feed into the paper path.

Skew Correction Mechanism

• After the original feeds, the skew correction sensor detects its leading edge, and stops the rotation
of the feed motor for the prescribed number of pulses.
• The leading edge hits and straightens against the stationary roller to correct skew.
• If the original is small (B6, A5, B5, HLT) (or when duplex scanning regardless of paper size), when
the interval sensor [E] detects the leading edge of the original, it stops the pre-scanning roller [D]
for a prescribed number of pulses, long enough for the original to buckle against the stationary
roller and correct skew.
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