5.1 About LEDThe status of the scanner is displayed by the LED (Red) ( ) and the LED (Green) ( ), as shown in thetable below:LED (Red) LED (Green) StatusOFF OFF Power OFF*1OFF ON Ready mode or ScanningOFF Blinking (Fast) Warming upOFF Blinking (Fast, 2 times consecutively) Double Feed Skip modeOFF Blinking (Fast, 3 times consecutively) Dog-ear detection skip modeOFF Blinking (Slow) Sleep mode*2 or Cleaning modeBlinking (Slow) Blinking (Slow) Sleep mode*2 and Notification modeBlinking (Slow) ON Notification modeON OFF Error*3*1 If the power off feature in sleep mode is enabled, and if no operation is performed for a certain period of time, the scanner will beturned off automatically. Press the power button ( ) of the scanner to turn it on. You can enable/disable the power off feature, andchange the time until the scanner turns off in User Utility.*2 If no operation is performed for 15 minutes or longer, the scanner will enter sleep mode automatically to conserve energy. Pressany button (except the power button) on the scanner’s operation panel to return to ready mode. The time until the scanner enterssleep mode can be changed in User Utility.*3 For details about the error, check in User Utility.5.1 About LED18