Troubleshooting; Actions - IBM 4685-L0D Setup, Operation, And Service Manual

Troubleshooting

Actions

The following describes the actions to take when trouble occurs with the 4685-L0D
scanner.
6-2
IBM 4685-L0D Scanner: Setup, Operation, and Service Guide
Conditions
The scanner does not
turn on.
The scanner does not
beep.
The scanner status
indicator does not light
up.
The reading laser
(VLD) does not turn
on.
The polygon mirror
does not rotate.
Causes and actions
Possible causes:
The POS interface cable is not securely connected to
POS terminal or the scanner.
The POS interface cable has failed.
The scanner has failed.
Actions:
Turn off the POS terminal, and check the connection
between the POS interface cable and the scanner or the
POS terminal.
Replacement:
POS interface cable
Scanner
Possible causes:
The POS interface cable is not properly connected.
The scanner is not correctly configured for the oper-
ating system of the POS terminal.
The scanner is in sleep mode.
The POS interface cable has failed.
The scanner has failed.
Actions:
1. For the RS-485 model, turn off the POS terminal and
the scanner, and make sure that the POS interface
cable is securely connected to port 9/E or 9 of the
POS terminal.
For the USB model, unplug the POS interface cable
from the port and plug it in again (you need not turn
off the POS terminal).
2. Check the configuration of the scanner for the POS
terminal.
3. Move your hand over the front of the window to make
the scanner go from sleep mode to operating mode.
Replacement:
POS interface cable
Scanner