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3 - 2 DS9208 Product Reference Guide
Troubleshooting
Table 3-1
Troubleshooting
Problem Possible Causes Possible Solutions
The aiming dot does not appear
when pressing the trigger.
No power to the digital scanner. If the configuration requires a power
supply, re-connect the power supply.
Incorrect host interface cable is used. Connect the correct host interface
cable.
Interface/power cables are loose. Re-connect cables.
Digital scanner is disabled. For IBM 468x and USB IBM hand-held,
IBM table top, and OPOS modes,
enable the digital scanner via the host
interface. Otherwise, see the technical
person in charge of scanning.
If using RS-232 Nixdorf B mode, CTS
is not asserted.
Assert CTS line.
Aiming dot is disabled. Enable the aiming dot. See
Trigger
Aiming Pattern on page 4-14
.
Digital scanner emits short
low/short medium/short high
beep sequence (power-up beep
sequence) more than once.
The USB bus may put the digital
scanner in a state where power to the
scanner is cycled on and off more than
once.
Normal during host reset.
Digital scanner emits aiming
dot, but does not decode the bar
code.
Digital scanner is not programmed for
that bar code type.
Program the digital scanner to read that
type of bar code. See
Chapter 10,
Symbologies
.
Bar code symbol is unreadable. Scan test symbols of the same bar
code type to determine if the bar code
is defaced.
The aiming dot is not centered on the
symbol.
Center the aiming dot on the symbol.
See
Aiming in Momentary Trigger
Mode on page 2-7
.
Picklist mode is preventing the digital
scanner from decoding all bar codes
in the field of view.
Disable Picklist mode. See
Picklist
Mode on page 4-19
.
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