Datamax E4203 Generating Records, Structure of a Record, Header Data String Termination Character

Models: E4203

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Generating Label Formats

The first line in the sample format (Table 8-1) is the System-Level Command directing the printer to begin label formatting. (Other System-Level Commands may precede the <STX>L for printer setup.) Lines 2, 14, and 15 are Label-Formatting Commands. Line 15 is the exit and print command. The remaining lines (3-13) are print format records, explained in this chapter.

A record is a data string that contains the information to be printed on the label(s). Records are the building blocks of label formats. Every record must end with a termination character (usually a carriage return, <CR>). Omitting termination characters will result in the concatenation of records. Omitting the carriage return that precedes the termination character E, which is necessary to complete the label formatting and begin printing, will cause the printer to continue interpreting all subsequent data as label print format records.

Generating Records

Every record is made of three parts: (1) A header that is 15 bytes in length, (2) the data to be printed, and (3) a termination character (e.g., <CR>) marking the end of the field. The header is used to select the appearance of the data when printed by specifying rotation, font type, size, and position. Every header contains similar information, but this information may be used in different ways by different types of records. The six record types are:

1.Internal Bit-Mapped Font

2.Smooth Font (Simulated)

3.Scalable Font

4.Bar code

5.Images

6.Graphics

The Structure of a Record

The basic structure of the record is described below. For details regarding the various interpretations of the six types see Record Structure Types.

The third line of the label format example in Table 8-1 consists of the following:

121100000050005HOME POSITION<CR>

This string comprises a complete record, shown below, divided into its three basic component parts.

Header

Data String

Termination Character

121100000050005

HOME POSITION

<CR>

Table 8-2: Record Structure Components

The record conforms to the following fixed field format (spaces added for visual clarity). Identifying lower case letters have been placed below the field values for reference in the following sections:

1

2

1

1

000

0005

0005

HOME POSITION

<CR>

a

b

c

d

eee

ffff

gggg

[hhhh iiii] jj…j

Termination character

60

E-Class DPL Programmer’s Manual

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Datamax E4203 manual Generating Records, Structure of a Record, Header Data String Termination Character, 121100000050005