SECTION 1
General Information
1-12 SE 1223 Scanner User’s Guide
Symbol Aspect Ratio
The ratio of symbol height to symbol width.
Symbol Length
Length of symbol measured from the beginning of the quiet
zone (margin) adjacent to the start character to the end of
the quiet zone (margin) adjacent to a stop character.
Symbology
The structural rules and conventions for representing data
within a particular bar code type such as UPC/EAN, Code
39, etc.
Tolerance
Allowable deviation from the nominal bar or space width.
UPC
Universal Product Code is a relatively complex numeric
symbology. Each character consists of two bars and two
spaces, each of which can be any of four widths. The stan-
dard symbology for retail food packages in the United
States.
Visible Laser Diode (VLD)
A solid state device which produces visible laser light. Laser
light emitted from the diode has a wavelength of 670 to 680
nanometers.
Summary of Contents for SE1223
Page 1: ...SE 1223 Integrated VLD Scanner USER S GUIDE PN 961 032 042 Revision B September 1999...
Page 8: ...CONTENTS vi SE 1223 Scanner User s Guide...
Page 22: ...SECTION 1 General Information 1 14 SE 1223 Scanner User s Guide...
Page 124: ...SECTION 3 Scanner Specifications 3 14 SE 1223 Scanner User s Guide...
