Zenith Data Systems Z-171 PC Series Service Manual page 42

Page 3-12
Operation
Control Key Combinations
The following keys functions are activated by pressing the key simulta-
neously with the control key. The keys are labeled on the front edge
of the key as illustrated in Figure 3-9.
The CTRL-BREAK key combination is used to interrupt program execution
and is not always active.
The CTRL-PRTSC key combination is used to send the contents of the
screen to a printer (if the printer is properly configured).
The CTRL-PRT ON key combination is used to send everything that is
going to the screen to the printer as well.
The CTRL-PAUSE key combination is used to hold the display of text
on the screen.
Figure 3-9: Control Key Combinations