Motorola ml900 用户手册

 

Finger Placement 

When placing a finger to be enrolled or identified, slide the cover to 
expose the sensor matrix surface, then use a light, but firm and steady 
pressure. 

 

Avoid moving your finger during the scan, and be sure that you are 
making contact with the “sensor matrix” and with the surrounding drive 
ring (the light-colored surface surrounding the matrix. The system works 
best when it has a “core” image (the center of your fingerprint, which is 
approximately opposite the line of the cuticle of your fingernail.