Rejections occur due to multiple reasons. One of the main reasons is incorrectly placing the finger on the scanner. To ensure that scans are registered properly, place the finger flat on the reader and hold it for approximately 1 to 2 seconds. This gives the system adequate time for proper scanning.
To register the punch in and out times, the finger should be placed on the scanner the same way as it was placed when first enrolled. Make sure your fingers aren’t dirty, damaged or placed on the scanner awkwardly.