Zenith Z-170, Owner'S Manual

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30
Operation
Special Keys
Generally, these are keys with additional labels printed on their front edges.
In all cases, this front-edge meaning is activated by pressing the special
key simultaneously with the Ctrl key.
Pause
-
When pressed at the same time as the Ctrl key,
this command freezes the display of text on the screen.
Prt Sc (Print Screen)
-
When pressed simultaneously
with the Ctrl key, this key sends whatever is onscreen to
the printer. Your printer must be on, online, and have paper
ready or the computer will pause until the printer becomes
ready.
Typically, you would use Prt Sc to get a hard copy of the
onscreen text, such as a list of files for a DIR (Directory)
command.
The primary time to use this feature is when you run MS­
DOS commands like DIR and TYPE, or if you're com­
municating with a modem, and want a copy of one screenful
of information. Prt Sc sends out a full 25 lines of data.
Prt On (Print On)
-
When pressed at the same time
as the Ctrl key, this MS-DOS function sends everything that's
going to the screen to the printer as well. The printer has
to be on, online, and have paper ready.
Once you enter the command, Print On stays in effect until
you enter the same command a second time, or you reset
the computer.