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D-2 Printer Commands
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Understanding PCL Printer Command
Syntax
Before using printer commands, compare these characters:
Many printer commands use the lowercase letter l
(l)
and the
number one
(1)
, or the uppercase letter O
(O)
and the number zero
(0)
. These characters may not appear on your screen as shown
here. You must use the exact character and case specified for PCL
printer commands.
Figure D-1 displays the elements of a typical printer command (in
this instance, a command for page orientation).
Figure D-1 Printer Command Elements
Lowercase l:
l
Uppercase O:
O
Number one:
1
Number 0:
0
Escape character
(begins escape sequence)
Value field
(contains both
alpha and numeric characters)
Parameterized
character
Termination character
(uppercase)
Group
character