Casio DT-900 - Manual (Page 22)

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Keys and Their Functions
Operations are controlled by trigger keys and stroke keys.
1 Trigger keys
Trigger a bar code read operation.
2 Control keys
CLR key:
Cancels input.
BS key: Backspaces and deletes one
character.
S key: Switches between the character
input mode and the number input
mode.
lit on the LCD screen indicates
the character input mode. When
is not lit, the Data Collector is in the
number input mode.
3 Multi-function (L/R) keys
Keys that can be assigned any function.
4 10-key pad
The function of these keys depends on whether
the Data Collector is in the character input mode
or the number input mode.
Character input mode: Input alpha-characters
and symbols.
Number input mode: Inputs the numbers 0 to 9
and the decimal point.
5 Power key Turns power ON and OFF.
6 Enter key Registers input.
7 Function keys
Keys that can be assigned any function except for
the trigger key function. The following are the
initial functions assigned to these keys.
F1 (–):
Inputs the minus (–) sign.
F2 (
←):
Moves the cursor left.
F3 (
→):
Moves the cursor right.
F4 (DEL): Deletes a character.
F5 (SP): Inputs a space.
F6 ( ▲ ): Increases display contrast.
F7 ( ▼ ): Decreases display contrast.
F8 (BL): Turns the display backlight ON and OFF.