Intermec CK31 User Manual page 103

Problems While Scanning Bar Codes (continued)
Problem
The scanner will not read the bar code
label.
The scanner does not read the bar code
labels quickly, or the scanning beam
seems to be faint or obscured.
You scan a valid bar code label to enter
data for your application. The data
decoded by the scan module does not
match the data encoded in the bar code
label.
CK31 Handheld Computer User's Manual
Chapter 5 — Troubleshooting and Maintaining the CK31
Solution
• Make sure you aim the scanner beam so it crosses the
entire bar code label in one pass.
• The angle you are scanning the bar code label may
not be working well, or you may be scanning the
label "straight on." Try scanning the bar code label
again, but vary the scanning angle.
• The bar code label print quality may be poor or
unreadable. To check the quality of the bar code
label, try scanning a bar code label that you know
will scan. Compare the two bar code labels to see if
the bar code quality is too low. You may need to
replace the label that you cannot scan.
• Make sure the bar code symbology you are scanning
is enabled. Use Intermec Settings to check the
symbologies. If your bar code symbology is disabled,
enable it and then try scanning the bar code label
again.
• Make sure that the application you are running on
the computer is expecting input from a bar code.
You may need to type this information instead of
scanning it.
• If you are using the 2D imager, set Lighting Mode to
Illum LED priority and set Lighting Goal to 100 (or
greater). Use Intermec Settings to change the
Lighting Mode setting.
• If the bar code is rotated, make sure that you have
1D Omni-directional scanning enabled. Use
Intermec Settings to enable 1D Omni-directional
scanning.
The scanner window may be dirty. Clean the window
with a solution of ammonia and water. Wipe dry. Do
not allow abrasive material to touch the window.
• The computer may have decoded the bar code label
in a symbology other than the label's actual
symbology. Try scanning the bar code label again.
Make sure you scan the entire label.
• To operate the computer quickly and efficiently, you
should enable only the bar code symbologies that you
are going to scan.
91