Symbol PDT 8100 Series Product Reference Manual page 241

Table 12-1. Troubleshooting The Terminal (continued)
Problem
System is reporting that the
main battery is unknown (in
Start - Settings - System
tab - Power).
Note: Under normal
operating conditions, the
battery is unknown for
approximately
10 - 15 seconds after
powering on, cold booting,
or warm booting the
terminal. This state occurs
while the terminal is waiting
for a stable reading from
the battery.
Rechargeable lithium-ion
battery did not charge.
Cannot see characters on
display.
Fail to communicate with
IrDA printer.
Cause
Terminal is too hot or
cold to charge the
battery.
Battery charging circuit
is in a fault condition.
Battery failed.
Terminal removed from
cradle while battery was
charging.
Terminal not powered
on.
Distance from printer is
more than 1 meter (39
inches).
Obstruction interfered
with communication.
Application is not
enabled to run IrDA
printing.
Maintenance and Troubleshooting
Solution
The charger was turned off because
charging the battery when it is too hot or
cold can damage the battery. Move the
terminal to a more temperate location.
Probable cause is a failed battery. Replace
with a new battery from Symbol.
Replace battery. If the terminal still does not
operate, try a soft reset, then a hard reset;
see Resetting The Terminal
Insert terminal in cradle and begin charging.
The lithium-ion battery requires up to 4
hours to recharge fully.
Press the Power button.
Bring the terminal closer to the printer and
attempt communications again.
Check the path to ensure no objects were in
the way.
Printer support must be included with the
application to run IrDA printing on the
terminal. See your System Administrator.
on page 2-35.
12-5