6
1. Charging LED Indicator:
The charging LED indicator is in red when charging, and it will turn to green when fully charged. Remove the device from
the power outlet, and then the LED light is off.
2. Scan Key:
Press it to scan the barcode.
3. OK/ ESC Key:
OK Key: Tap it to confirm the current step.
ESC Key: Tap it to cancel the current step.
4. Direction Key:
Press it to allow up, down, left, right navigation.
5. Enter Key:
Press it to launch an application or select a current/highlighted item.
6. Function Key:
ALPHA key
：
Press ALPHA+ESC key can close all programs.
Space key: Press it to leave space.
BASP key: Press it to delete the last character.
Backlight key: Press it to control the brightness of the screen.
7. Power Key:
Press it to switch on/switch off/ shut down the DC850.
8. The keypad is color-coded to indicate the alternate function keys (blue is for the
“FUNC” key and orange is for the “ALPHA”
key).
9.
The keypad’s default characters/functions are numbers (0-9), for example, press keypad in the edit page, the default output
is number. For the edit page that can only enter numbers, the "ALPHA" key
’s switch function is invalid.
10.
“ALPHA” key: press it to toggle between “Number”, “English Characters” and “Chinese Characters”. Enter the edit box,
press "ALPHA" key once for English lowercase character, twice for Chinese character and three times for numbers. It is
cycling and has durable effects.
