Troubleshooting - Motorola DS4208 Product Reference Manual

3 - 4 DS4208 Digital Scanner Product Reference Guide

Troubleshooting

Troubleshooting
Table 3-1
Problem
The aiming pattern does not appear
when pressing the trigger.
Digital scanner emits aiming pattern,
but does not decode the bar code.
Possible Causes
No power to the digital scanner.
Incorrect host interface cable is used.
Interface/power cables are loose.
Digital scanner is disabled.
If using RS-232 Nixdorf B mode, CTS is
not asserted.
Aiming pattern is disabled.
Digital scanner is not programmed for
the correct bar code type.
Bar code symbol is unreadable.
The symbol is not completely inside
aiming pattern.
Distance between digital scanner and
bar code is incorrect.
Possible Solutions
If the configuration requires a power
supply, re-connect the power supply.
Connect the correct host interface cable.
Re-connect cables.
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.
Assert CTS line.
Enable the aiming pattern. See
Hand-Held Decode Aiming Pattern on
page 4-19.
Program the digital scanner to read that
type of bar code. See Chapter 9,
Symbologies.
Scan test symbols of the same bar code
type to determine if the bar code is
defaced.
Move the symbol completely within the
aiming pattern.
Move the symbol completely within the
field of view (AIM pattern does NOT
define FOV)
Move the scanner closer to or further from
the bar code. See Decode Ranges on
page 2-10.