IBM 3197 C User Manual page 109

Printer Setup Mode Key Function
LPI Displays the current line pitch of the printer attached to your display station.
F17 Pressing this key (while pressing and holding the Shift key) changes the
o
current line pitch to the desired one from the seven selections (see Chapter 5
for more details).
Quality Displays the current print quality (character to be printed by the attached
F18
printer). Pressing this key (while pressing and holding the Shift key) changes
the current print quality to the desired one from the three selections (see
Chapter 5 for more details).
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IBM 3197 User's Guide