Denso GT10B-SU - Chapter 14 Troubleshooting

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Chapter 14 Troubleshooting
Problem 1: Low reading efficiency.
Probable cause What to do:
• A target bar code is not within the scan range of
the reading window.
• Bring a bar code within the scan range.
(See Chapter 3.)
• The bar code may be smeared. • Wipe off the dirt from the bar code.
• The bar code may be blurred. • Use a bar code clearly printed.
Problem 2: Cannot read bar codes.
Probable cause What to do:
• The type of the bar code to be scanned has not
been set as a readable code.
• Set the bar code type as a readable code.
(See Section 13.2.)
• The scanned bar code contains no check digit,
while the "Enable, with C/D" parameter is
selected.
• Select the "Enable, without C/D" parameter.
(See Section 13.2.)
• The check digit contained in the scanned bar code
is wrong.
• Use a correct bar code.
• The power saving function built in the computer
may be activated.
• Deactivate the power saving function.
Problem 3: Bar code data cannot be displayed normally on the computer screen.
(USB keyboard interface)
Probable cause What to do:
• The keyboard type selected may not match one
that is set up in the host computer.
• Select the same keyboard type as one that is set up in
the host computer.
(You can check the computer's keyboard type by
clicking My Computer | Control Panel | Keyboard |
Hardware.)
• The Caps Lock state selected may not match that
of the connected keyboard.
• Select the same Caps Lock state as that of the connected
keyboard.
• Any device driver other than the system-supplied
driver (USB device class driver for HID) may be
used.
• Use the system-supplied driver that is included in
Windows 98 or later Operating Systems.
• The computer's keyboard may be held down. • Do not press the computer's keyboard when scanning
bar codes.
Problem 4: Bar code data cannot be displayed normally on the computer screen.
(USB-COM interface)
Probable cause What to do:
• Any device driver other than our USB-COM
device driver may be used.
• Use our USB-COM device driver that is designed for
the USB-COM interface.