Glossary
Optical sensorA sensor which detects the changes in the amount of light transmission. Paper feeding errors such as multifeed and paper jam are detected by monitoring the passing of documents.
OvercropRefers to cropping the scanned image in a size larger than the document in Automatic Page Size Detection. Overcrop is used to ensure that the whole image is contained and not partially missing.
OverscanA function that scans the document in a size larger than the specified paper size.
P
Paper jamRefers to a state in which a document is jammed inside the paper path or feeding is interrupted by documents slipping.
Paper ProtectionA function that stops the scan when the scanner detects a document that is highly deformed.
Patch codeA special code to let the scanner recognize the start and the end of each job or image mode.
Pick rollerA set of rollers that pick the sheets into the ADF.
Pick start timeThe period of time between setting the document and until picking starts after the document passes the hopper empty sensor.
Pinch rollerDriven rollers that are located on the opposite sides of the Feed(/Assist) rollers to feed documents through the ADF.
PixelThe dots that make up a scanned image.
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