Star Micronics Line Thermal Printer - Manual (Page 144)

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STAR Line Mode Command Specifications 5-3
5.1.4. Code 128
These are bar code symbols that can print ASCII 128 characters. For that reason, use thereof is increasing.
1. Each module and module width
Items Mode 1 Mode 2 Mode 3
Module Width 2 dots 3 dots 4 dots
Length of 1
Character (*)
2.75 mm 4.125 mm 5.5 mm
(*) Start and stop bars not included.
2. Regulations
When using with the command, control codes are not sent by the host PC, so the control codes are sent as data,
as shown below.
• When sending the following data, it represents a 2 character set.
% (25H) represents %0 (25H 30H).
Control codes (00H to 1FH) represent 40H to 5FH applied behind %.
Control code (7FH) represents %5 (25H 35H).
Function codes represent 1 to 4 (31H to 34H) applied behind %.
Start codes represent 6 to 8 (36H to 38H) applied behind %.
• Stop code (SC)/Check character (CK) are automatically applied.
• When start code is omitted:
Uses START C when more than 4 digits continue after header.
Uses START A when initial data other than numbers are the control code.
Uses START B for other cases.