Lexmark 248X ユーザーズマニュアル

Section 8: Barcodes

This section describes how to use your printer to generate barcodes.

You can print barcodes on your printer in both IBM and Epson emulation 
modes.

In the 248x printer’s Data Options setup menu, the barcode option must be set 
to ENABLE to reserve 1K of the receive buffer for barcode processing. If the 
option is not set to ENABLE, barcode printing is not possible. For 249x 
printers, buffer space is reserved automatically for barcode processing.

Resident barcodes include:

EAN-13

UPC-A

EAN-8

POSTNET

Code 39

Code 128

Interleaved 2of5

A barcode is a set of adjacent parallel bars and spaces of specific widths that 
has an encoded algorithm for the barcode type.

The module width is the base unit of measurement used to determine the 
overall width of a printed barcode. A character width within a barcode is an 
integral multiple of a module width. Each bar and space is an integral multiple 
of a module width. In order to account for differences in tolerances and optical 
conditions between printing and scanning a barcode, your printer provides 
"space width adjustment" for fine adjustment of space and bar ratios.

Barcodes may be printed with or without human readable characters. 
Typically, these characters are printed below the barcode, which allows the 
data to be manually entered if the barcode cannot be scanned.