User Manual

Chapter 1 Introducing 8500 13
¾ Backlight Setting
The LED backlight of screen and keypad helps ease reading under dim environments. It can
be alternately toggled ON and OFF by simultaneously pressing the following keys:
 24-key:
[Enter] + [FN]
 44-key:
[Enter] + [RED]
¾ Touch Screen & Signature Capture
This LCD is also a touch screen, which enables the use of a stylus for handwriting. It also
features signature capture that can save signature as confirmation of receipt when delivering
goods to door.
The screen can be calibrated by tool provided in the System Menu.
Warning! DO NOT use any pointed or sharp objects to move against the surface of
the screen.
1.3.6 Status LED
The dual-color LED on top of the [Scan] button is to provide information on status of
scanning. It is programmable for diagnostics and application dependant.
 Red LED - Error
 Green LED - Good Read
1.3.7 Buzzer
The buzzer, a low power transducer type, can be programmed for status feedback. Its pitch
and duration are software programmable.
1.3.8 Vibrator
Like a modern mobile phone, the terminal is integrated with a vibrator. It is software
programmable and especially useful when working in a noisy environment.