3 - 4 DS8108 Digital Scanner Product Reference Guide
Troubleshooting
Table 3-1 Troubleshooting
Problem Possible Causes Possible Solutions
The aiming pattern 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 pattern is disabled. Enable the aiming pattern. See
Hand-Held
Decode Aiming Pattern on page 5-22
.
Digital scanner
emits aiming
pattern, but does not
decode the bar code.
Digital scanner
is not programmed
for the correct bar code type.
Program the digital scanner to read that type
of bar code. See
Chapter 12, Symbologies
.
Bar code symbol is unreadable. Scan test symbols of the same bar code type
to determine if the bar code is defaced.
The symbol is not completely
inside aiming pattern.
Move the symbol completely within the aiming
pattern.
Move the symbol completely within the field of
view (AIM pattern does NOT define FOV)
Distance between digital scanner
and bar code is incorrect.
Move the scanner closer to or further from the
bar code. See
Decode Ranges on page 2-9
.
Digital scanner
decodes bar
code, but does not transmit
the data to the host.
Digital scanner
is not programmed
for the correct host type.
Scan the appropriate host type programming
bar code. See the chapter corresponding to
the host type.
Interface cable is loose. Re-connect the cable.
If the digital scanner emits four
long low beeps, a transmission
error occurred.
This occurs if a unit is not properly
configured or connected to the
wrong host type.
Set the scanner's communication parameters
to match the host's setting.
If the digital scanner emits 5 low
beeps, a conversion or format error
occurred.
Configure the digital scanner's conversion
parameters properly.
If the digital scanner emits
low/high/low beeps, it detected an
invalid ADF rule.
Program the correct ADF rules. Refer to the
Advanced Data Formatting Programmer
Guide.