Scanning Bar Codes
Quick Reference Guide
33
The aiming beam is smaller when the imager is closer to the code and larger
when it is farther away. Symbologies with smaller bars or elements (mil size)
should be read closer to the unit. Symbologies with larger bars or elements
(mil size) should be read farther from the unit. To scan a label, hold the imager
at an appropriate distance from the target, pull the trigger, and center the aim-
ing beam on the symbol.
Scanning Illumination
Another feature that can be enabled for 2D scanning is an array of illumina-
tion LEDs. These LEDs provide illumination in dark environments and can
improve scanning performance under certain lighting conditions. By default,
the illumination LEDs are turned on. Illumination LEDs can be disabled
using the PDT parameters. See the PRG for complete information on pro-
gramming the LEDs.
OCR Scanning
Optical character recognition (OCR) decodes certain fonts and outputs the
data as a string, in a similar fashion to bar code labels. The Falcon 2D imager
supports the decoding of four OCR fonts. Table
7
gives examples of how these
fonts are printed.
Table 7. OCR Font Samples
See the PRG for information on setup and programming for OCR fonts.
Font
Sample
OCR-A
OCR-B
U.S. Currency Serial Number
MICR E 13B
