Honeywell International Inc. QC900A Manuale Utente

The verifier tests the following symbologies:

The QC890 Verifier offers a choice of Automatic, 5, 6, and 10 mil aperture 
settings.  External devices (i.e., mouse wands, pen wands, and linear imagers) 
are available with apertures designed to match the most common X dimensions. 
Wands are available with apertures of 3 (Mouse Wand only), 5, 6, 10, and 20 
(Mouse Wand only) mil. These aperture sizes correspond to those specified in 
ISO/IEC 15416 Bar Code Print Quality Test Specification - Linear Symbols. The 
proper aperture should be selected based on the X dimension range shown in 
the table in the 

Choosing an inappropriate scanning aperture results in inaccurate quality 
measures. Too small an aperture may detect reflectance non-uniformities (spots 
and voids) that would not affect scanning with a "normal" aperture size. Too large 
an aperture will not be able to resolve individual elements of the symbol. 

The scan button on top of the unit wakes the unit from power down.  A first press 
of the button turns on illumination and a second press activates reading 
capabilities.

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Red LED - error conditions

•

Green LED - good symbols and configuration changes

Codabar

Interleaved 2 of 5

Code 11

MSI

Code 16K

PDF417

Code 39

Reduced Space Symbology (RSS-14, 
RSS Limited, RSS Expanded)

Code 49

Regular 2 of 5

Code 93

Telepen

Code 128

UPC/EAN

IATA 2 of 5