Code 128 Symbology Introduction

Chapter 2. Code 128 Characteristics

We will now code the above example, HI345678, in Code 128. As we calculated in the Checksum Digit Calculation section, the checksum digit is 67. So we must also code the checksum digit at the end of the message.

We encode each digit using the encoding table above:

This is shown in the following graphical representation where the bar code has been sectioned-off into areas that reflect each of the 10 components just mentioned.

Figure 2.1. Structure of Code Example for HI345678

	Note
	Also others describe the structure Code 128 like this: Table 2.3. Structure of Code 128 with quiet zone a leading quiet zone one of three start codes "START "=103, or "START B"=104, or "START C"=105 the data itself a check character a stop character a trailing quiet zone Then this picture illuminates it well: Figure 2.2. Structure of Code 128 with quiet zone