
Operating the MC3000 2-5
Table 2-2. 28-Key Descriptions
Key Description
Power (red) Powers the mobile computer screen on and off (resume and suspend).
Green Circle Programmable application function key by default.
Red Circle Programmable application function key by default.
Scan (yellow) Used in scanning applications, press to scan a bar code. This key has the same function as
activating the side mounted scan buttons.
Scroll Up and Down Moves up and down from one item to another. Increases/decreases specified values.
Scroll Left and Right Moves left and right from one item to another. Increases/decreases specified values.
Produces a TAB when the blue FUNC key is activated and the right arrow key is pressed.
ESC Produces the ESC function by default.
CTRL Press and release the CTRL key to activate the keypad alternate CTRL functions. The
icon appears on the taskbar. Press and release the CTRL key again to return to the default
keypad functions.
Numeric/Alpha/Special
Function
Numeric, alpha or special function keys. Numeric by default.
Produces a special function when the blue FUNC key is activated.
Produces alpha values when the orange ALPHA key is activated.
In Alpha state, produces the lower case alphabetic characters on the key. Each key press
produces the next alphabetic character in sequence. For example, press and release the
ALPHA key and then press the 4 key once to produce the letter ‘g’; press and release
the ALPHA key and then press the 4 key three times to produce the letter ‘i’.
When the SHIFT key is pressed in Alpha state, the upper case alphabetic characters on
the key are produced. For example, press and release the ALPHA key, press and hold the
SHIFT key and then press the 4 key once to produce the letter ‘G’; press and release the
ALPHA key, press and hold the SHIFT key and then press the 4 key three times to
produce the letter ‘I’.
Period/Decimal Point Produces a period for alpha entries and a decimal point for numeric entries by default.
Produces the F10 function when the blue FUNC function key is activated.
Enter Executes a selected item or function.
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