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Configuration 4–9
Option 20 — Double Wide Print Operation (Expanded Print Select)
Discussion
Option 20 makes it possible to print “double wide” characters. The term
“double wide” is related in an inverse manner to pitch, and generally alludes
to the width of alphanumeric characters just before the double wide feature is
invoked.
150B/L150B
Option
Number
Display Configuration
Description
.0 20.0
Double wide on per line basis only
. Enables Mode 6. Initiated by
either control code ESC SO or SO (see page 7–31). If the printer is
operating at 10 pitch when the control code is executed, printer
operation shifts to pitch 5. However, if the printer is operating at
16.7 pitch (Mode 5) when the control code is executed, printer
operation changes to 10 pitch. If control code DC4 is received
within that same line, it cancels any ef
fect that ESC SO might have
produced. See Note.
.1 20.1 Per character width doubling through control codes (Modes 1– 5)
but excludes bit image characters. Default. Disables Mode 6.
See Note
NOTE: When executed, any one of the following codes causes the pitch to
change by one–half: (1) SO, (TEXT), LF produces a line of double
wide characters; (2) SO, (TEXT), DC4, LF produces a line at
whatever pitch is in effect at the time the line is received; or, (3)
ESC W CHR$ (1 or 49) will cause each succeeding line to have
double wide characters.
Characters are produced at the reduced pitch until: the end of the
line (printing takes place); a DC $ is received; or, in the case of ESC
W n, an ESC W CHR$ (0 or 48) is received. Printing then resumes
at the pitch rate in effect before the double wide feature was
executed. For example, a line coded A (SO) B (DC4) C LF will be
printed with “A” and “C” normal pitch and “B” double wide.