Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 18

Ref. Component
Esc
Main keypad
F1 - F12
(function keys)
Backspace
Print Scrn
Scroll Lock
The typing areas, keyboard lights, and special function keys are
shown and described in the following illustration and table.
Function
Often assigned a specific task by the application. Frequently used as an exit key
(for quitting an application), for moving back one screen, or for canceling a
command.
Contains the standard typewriting keys. Includes the Caps Lock key. Press the
Caps Lock key once to type all capitalized letters (the Caps Lock light will be on).
Press the Caps Lock key again to turn off capitalization.
Use for specific effects in applications and operating systems. Refer to the
application software documentation.
Moves the cursor left and deletes characters as it moves to the left.
Depending on the software you are using, prints the displayed screen to a printer.
Using this key may not print the entire file.
When the Scroll Lock light is on, the screen is prevented from scrolling.