Table of Contents
Syntax
E or e
Parameters
Bar Size
Behavior
Valid Characters: The entire 128 ASCII character set.
l
Variable Length
l
Valid bar widths: The fourth character of record is the width of the narrow bar in
l
dots.
All other bars are a ratio of the narrow bar (2 times the narrow bar width, 3 times the
l
narrow bar width, and 4 times the narrow bar width).
This printer supports the Code 128 subsets A, B, and C. The printer can be selected
l
to start on any code subset and switch to another within the data stream. The
default code subset is B; otherwise, the first character (A, B, C) of the data field
determines the subset. Subset switching is only performed in response to code
switch command. These commands are placed in the data to be encoded at appro-
priate locations.
Note: Using a B as the first character is recommended to prevent an A or C from changing
the subset.
Subset A: Includes all of the standard uppercase alphanumeric keyboard characters
plus the control and special characters. To select Code 128 Subset A, place an ASCII A
(DEC 65, HEX 41) before the data to be encoded.
Subset B: Includes all of the standard uppercase alphanumeric keyboard characters
plus the lowercase alphabetic and special characters. To select Code 128 Subset B,
place an ASCII B (DEC 66, HEX 42) before the data to be encoded. If no start
character is sent for the Code 128 font, Code 128 Subset B will be selected by default.
Subset C: Includes the set of 100 digit pairs from 00 through 99 inclusive, as well as
special characters. Code 128 Subset C is used for double density encoding of numeric
data. To select Code 128 Subset C, place an ASCII C (DEC 67, HEX 43) before the data
to be encoded. Subset C can only encode an even number of numeric characters.
When the data to be encoded includes an odd number of numeric characters, the last
character causes the printer to automatically generate a "switch to subset B" and
encode the last character appropriately in subset B.
Special Character Handling: Characters with an ASCII value greater than 95 are
considered special characters. To access these values, a two-character reference table
is built into the printer (see below).
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DPL Command Reference
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