Hand Held Products manual Using the QC890 Verifier, Scan Button LEDs

The verifier tests the following symbologies:

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

Using the QC890 Verifier

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 Pen/Mouse Wand Aperture Selection (page A-1) section.

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.

Scan Button

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.

Scan Button LEDs

•Red LED - error conditions

•Green LED - good symbols and configuration changes

1 - 2 Quick Check® 890 User’s Guide