Operator`s manual

Table 7–2: Possible Electrical Problems and Remedies
Observed Problem Probable Cause and Remedies
No indication on front
panel when power
switch turned ON.
The power cord is not plugged into wall outlet
or into rear of printer. The wall outlet may be
defective. If it does not operate, call an electrician
to fix outlet.
Some keys are
inoperative.
Printer is in lock-up mode. Check configuration
switch settings; reinitialize printer configuration
(refer to Chapter 4, Section 4.5.1).
Printer does not respond
correctly to front panel
keys.
Invalid configuration causing printer to lock up.
Turn power switch OFF and then back ON. If
problem persists, perform ‘‘Printer Initialization
Procedure’’ in Chapter 4. Selected speed (baud
rate) not compatible with data source. Reset speed
(see Chapter 4). Parity selected is not compatible
with data source. Reset printer parity type (see
Chapter 4).
[ S L o] Slow printing. This display flashes while the
print rate is reduced by the thermal throttle.
Normally occurs only during high density printing.
No damage occurs, printing continues at reduced
speed. Automatically clears when temperature falls
below throttle threshold and normal printing speed
resumes.
[ S U S] Suspended print.
1. After power-up, the first print segment will
be delayed while the ribbon moves a specific
distance.
2. After power-down, this display will appear
briefly before going blank because low energy
is detected.
3. Low energy from the power supply will produce
this display.
4. As the end of the ribbon passes the print wires,
printing is suspended resulting in this display.
7–4 OPERATOR MAINTENANCE