Denso BHT-1170BWB-CE, Руководство пользователя

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Barcode Handy Terminal
When unable to successfully read barcodes…
Cause Countermeasure
Specular
reflection
When the illumination LED is focused on
the printed surface of the barcode from
directly above, there are times when
scanning is unsuccessful due to specular
reflection.
Change the BHT scanning angle and try again.
Distance from
barcode
Scanning may be unsuccessful if the BHT
reading window is too close to or too far
from the barcode, even when the barcode
Move the BHT slowly toward or away from the barcode
and try again.
The illumination LED range is only a guideline.
Barcodes can be read at a maximum distance of 130 cm
from the BHT reading window.
is within the illumination LED range.
Barcode
curvature
barcode surface is curved.
eading
window.
surface Scanning may be unsuccessful if the Scan the barcode at the center of the barcode r
Barcode surface
dirt Scanning may be unsuccessful if the
barcode surface is dirty.
Wipe the dirt from the barcode and try again.
Barcode reading
window dirt Scanning may be unsuccessful if the
barcode reading window is dirty.
Blow any dust away with an airbrush, and then gently
wipe the reading window with a cotton swab or similar soft
object.
Direct sunlight,
ambient light
Barcode scanning may be adversely
affected by direct sunlight or the
brightness of the surrounding light. Perform barcode scanning away from direct sunlight. Try
adjusting the brightness of the surrounding light when
scanning indoors.