312 Click the Start button, and then click [All Programs],[Canon DR-M140], and [Canon imageFORMULA Utility].imageFORMULA Utility starts.3 Click [CANON DR-M140 USB] and click [Properties].Scanner properties are displayed.4 Click the [Maintenance] tab, and then select a LongDocument mode.Select [Long Document Mode (1000 mm)] or [Long DocumentMode (3000 mm)] depending on the length of the document.5 Click [OK].Detecting a document double feedThis scanner includes a function to detect document double feeds. Byusing this function, the scanner will automatically stop when it detectsthat multiple documents have been fed at the same time. You can alsospecify whether to save the scanned image after scanning hasfinished and continue scanning the document (double feed detectionignore function).To use the double feed detection function, you must first open thescanner driver settings screen and enable double feed detection. It isalso necessary to set [Rapid recovery system] to use the double feeddetection ignore function.Setting procedure1 Start CapturePerfect. (See p. 48)