HID iCLASS SE RB25F User Manual page 12

Powering
Trusted Identities
Sensor cleaning
The fingerprint sensor can become soiled by user's fingers, dust, or other sources. This contamination may
affect image quality, degrading authentication performance. It is therefore recommended that you
periodically clean the RB25F sensor.
In order to avoid scratching the senor surface use soft lint-free material (or a cotton swab), with gently
movements to clean the capture area.
Caution: Do not use acidic liquids, alcohol or abrasive materials to clean the sensor.
Common reasons for enrollment failure
Problem
Finger is too dry or dirty
Finger applied too lightly
Finger positioned incorrectly
Finger removed or moved during the
scan process
Injury or wear has changed the
fingerprint pattern
PLT-04900, A.0
Solution
Rub the finger in the palm of your hand to moisten/clean it
Place finger firmly and flat onto the sensor surface
Your finger must cover most of the sensor window
Hold your finger still and do not slide it on the sensor window until the scanning
process is complete
Contact the administrator as you may need to enroll another finger
12
HID® iCLASS SE® RB25F
User Guide
May 2020