User's Guide

Table Of Contents
Chapter 3 Manager Mode Transactions
76
5. Instruct the employee to select any other finger as the secondary finger.
6. Go to “Scan finger” (step 2) to continue the enrollment process.
Troubleshooting
Result Possible cause
Dark image You are applying too much pressure.
Your finger is too moist.
Your finger is not clean.
The sensor is not clean. Apply diluted dishwashing liquid to a
soft, lint-free cloth, and wipe the sensor. Let the sensor dry
before resuming enrollments. Do not use disinfectant wipes,
alcohol, or abrasive cleaners on the sensor.
Screen reads “Press
harder.”
You are not applying enough pressure.
Your finger is too cold. Fingers that are at room temperature
scan best. Rub your hands together.
Your finger is too dry. Use the PreScan® fingertip enhancer
pad or apply hand moisturizer.