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IBM Proprinter Control Commands
UNAVAILABLE IBM PROPRINTER CONTROL
COMMANDS
The following commands are not available in IBM emulation mode:
ESC =
ESC [ @
ESC _
ESC P
The IBM Download Character Font command, ESC =, can be performed
by the equivalent universal control command SOH Az&.
Downloaded Character Font
Double High/Double Wide Printing
Continuous Overscore
Proportional Printing