IBM 4400 manual Maxicode, Standard Data Fields Character Title Positions

Maxicode

Maxicode

The Maxicode bar code structure is shown in Figure 16 and described below.

Figure 16. Sample MAXICODE Bar Code

The Maxicode bar code is a fixed size matrix symbology made up of an offset of rows of hexagonal elements arranged around a unique finder pattern. Maxicode is suitable for high speed scanning applications, and is capable of encoding all of the 256 ASCII characters.

Readable Data

The Maxicode bar code does not support a human readable form.

Data Field

The data field of a Maxicode bar code is divided into a primary message and a secondary message. The primary message has a fixed structure, while the secondary message has a free format.

Standard Data Field

A standard Maxicode data field has its primary message structured as shown in Table 71. The data following the primary message is the secondary message and has a free format.

Table 71. Standard Data Fields

	Character	Title	Data
	Positions
0	- 2	Class of Service	Numeric
3	- 5	Country Code	Numeric
6	- 14	Postal Code	9 Digit Numeric for US
			OR
			6 Digit Alphanumeric
			for Canada
15, 16		Separator	'so;'
17 - ...		Secondary Message	Free Format

239