Zebra A300 Specifications download pdf (Page 120)

Code 49 Field Data Character Set

The ^FD data sent to the printer when using Starting Modes 0 thru 5

is based on the Code 49 Internal Character Set. This is shown in the

first column of the Code 49 table on page .110 The characters :;<

=>and ? are special Code 49 control characters.

Valid field data must be supplied when using modes 0 thru 5. Shifted

characters are sent as a two-character sequence of a “shift character”

followed by a “character in the unshifted character set.” For example,

to print a lower case ‘a,’ send a “Shift 2" followed by an ”A" (>A). If

interpretation line printing is selected, a lower case ‘a’ would print in

the interpretation line.

NOTE: Code 49 uses UPPERCASE Alpha characters only.

If an invalid sequence is detected, the Code 49 formatter will stop

interpreting field data and print a symbol with the data up to the

invalid sequence. The following are examples of invalid sequences.

Terminating numeric mode with any characters other than

0 thru 9 or a Numeric Space.

Starting in Mode 4 (Regular Alphanumeric Shift 1) and the first

field data character is not in the Shift 1 set.

Starting in Mode 5 (Regular Alphanumeric Shift 2) and the first

field data character is not in the Shift 2 set.

Sending Shift 1 followed by a character not in the Shift 1 set.

Sending Shift 2 followed by a character not in the Shift 2 set.

Sending two Shift 1 or Shift 2 controls characters.

Advantages of Using the Code 49 Automatic Mode

Using the Automatic (Default) Mode completely eliminates the need

for selecting the starting mode or manually performing character

shifts. The Automatic Mode analyzes the incoming ASCII string,

determines the proper mode, performs all character shifts and com-

pacts the data for maximum density.

NOTE: Numeric mode will only be selected or shifted when 5 or

more continuous digits are found. Numeric packaging provides no

space advantage for numeric strings of less than 8 characters.

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Zebra A300 Specifications Page 120