Canon DR-5010C Startup Manual

Contents

60 Using the ScannerOther FunctionsThe scanner is equipped with a function that stops the scanner when it detectsdocuments that are not fed correctly.Double Feed Detection FunctionThe scanner is equipped with a Double Feed Detection function thatautomatically detects when two or more documents are fed at the same time(double feed) while doing continuous scanning.There are two methods for multiple feed detection as shown below, thedetection method is selected by the ISIS/TWAIN driver.Detecting Double Feed by Document LengthThis function uses the length of the first document as the standard, and thendetects a multiple scan and stops scanning when a document is 1.96" (50mm) longer or shorter than the standard.Detecting Double Feed with Ultrasonic WavesThis function uses ultrasonic waves to detect the gap between two pages ofa document to determine that multiple documents have been fed and thenstops scanning.Note• Ultrasonic double feed detection works when the documents overlap by1.96" (50 mm) or more.• If the documents are stuck together with static electricity, the ultrasonicdouble feed detection will not correctly detect them as a double feed.Skew Detection FunctionIf long documents are skewed, then they may rub against the feed slot or theedges of the feed path and be damaged. The scanner is equipped with a SkewDetector function that detects when a skewed document hits the edge of thefeed slot. When a skewed document is detected, an error message is displayedand scanning stops.NoteSmall documents are not detected by the sensor even if they are skewed.