Troubleshooting - Denso HC36IITK-A Operation Manual

8. TROUBLESHOOTING

Problem 1: Low reading efficiency.
Probable cause
• The reading window is not
applied to a target bar code
correctly.
• The bar code is smeared.
• The bar code is blurred.
Problem 2: Cannot read bar codes.
Probable cause
• The scanned bar code has not
been set as readable codes.
• The scanned bar code contains
no check digit, while the
"Enable, with C/D" is selected.
• The check digit contained in the
scanned bar code is wrong.
• The power saving function built
in the PC is activated.
Problem 3: Incorrect bar code data displayed on the PC screen.
Probable cause
• The connected keyboard does
not match the keyboard type
setting you have made.
• The keyboard's Caps Lock or
Num Lock status doe not match
the status settings you have
made.
• The scan code set of the scanner
does not match that of the PC.
• The data transmission from the
scanner was too fast.
• Any key on the keyboard is held
down.
What to do:
• Align the center mark of the
reading window to the center of
the bar code correctly.
• Wipe off the dirt from the bar
code.
• Use a bar code clearly printed
What to do:
• Set the bar code as a readable
code (see pages 25 and 26).
• Choose "Enable, without C/D."
• Use a correct bar code.
• Deactivate the power saving
function.
What to do:
• Set the correct keyboard type
(see page 11).
• Make the keyboard status and
scanner status match with each
other (see page 10).
• Select the same scan code set
as the PC (see page 12).
• Prolong the data transmission
interval (see page 13).
• Do not press any key on the
keyboard when reading a bar
code.
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