Toshiba u300 Manuale Utente

4-4

User’s Manual

Operating Basics

Points to note about the FingerPrint Sensor

Please be aware of the following considerations when using the FingerPrint 

sensor. A failure to follow these guidelines might result in damage to the 

sensor, sensor failure, FingerPrint recognition problems or a lower 

FingerPrint recognition success rate.

■

Do not scratch or poke the sensor with your nails or any hard or sharp 

objects.

■

Do not press the sensor strongly.

■

Do not touch the sensor with a wet finger or any wet objects - keep 

sensor surface dry and free of water vapor.

■

Do not touch the sensor with a soiled or dirty finger as minute foreign 

particles of dust and dirt may scratch it.

■

Do not paste stickers or write on the sensor

■

Do not touch the sensor with a finger or any other object which may 

have a built-up of up static electricity on it.

Observe the following before you place your finger on the sensor whether 

for FingerPrint enrollment/registration or recognition.

■

Wash and dry your hands thoroughly.

■

Remove static electricity from your fingers by touching any metal 

surface. Static electricity is a common cause of sensor failures, 

especially when the weather is dry.

■

Clean the sensor with a lint-free cloth - do not use detergent to any 

other chemicals to clean the sensor.

■

Avoid the following finger conditions for enrollment or recognition as 

they may result in FingerPrint enrollment errors or a drop in the 

FingerPrint recognition success rate.

■

Soaked or swollen finger (e.g. after taking bath)

■

Injured finger

■

Wet finger

■

Soiled or oily finger

■

Extremely dry skin condition on finger

Observe the following to improve the FingerPrint recognition success rate.

■

Enroll two or more fingers.

■

Enroll additional fingers if recognition failure occurs when using already 

enrolled fingers.

■

Check the condition of your finger - any conditions which have changed 

since enrollment, such as injured, rough, extremely dry, wet, soiled, 

dirty, oily, soaked, swollen fingers, may lower the recognition success 

rate. Also if the FingerPrint is worn down or the finger becomes thinner 

or fatter, the recognition success rate may be lowered.