Oki PT390 - 7. Troubleshooting Printer Issues; Power-On and Startup Errors; Cutter Mechanism Problems

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7. Troubleshooting
This chapter describes the appropriate action to be taken in cases
where the printer is not operating correctly or fails to produce
clean printouts.
7-1. Power-on Problems and Errors
Symptom
Cause
Corrective action
Although the power
has been turned on,
the POWER lamp on
the control panel does
not light and the
printer does not start
up.
(1) The power cable is
disconnected.
(2) The connector of the
AC adapter is
disconnected.
(1) Connect the power cable.
(2) Connect the connector of
the AC adapter.
The ERROR lamp on
the control panel is lit,
and the printer does
not work.
(1) No paper is inserted.
(2) The top cover is not
closed completely.
(3) The thermal head is at
a high temperature.
(1) Insert paper.
(2) Close the top cover
completely.
(3) Wait until the thermal
head temperature
decreases sufficiently.
7-2. Cutter-related Problems
Symptom
Cause
Corrective action
Paper cannot be
cut.
(1) The cutter blade is
damaged or worn, or it
has been used for too
long.
(2) Paper fragments or
other foreign matter is
stuck around the
cutter blade or paper
chute.
(3) Adhesive matter is
adhering to the cutter
blade because of
printing on label
paper.
(1) Turn off the power, and ask
for repairs.
(2) Remove the paper
fragments or foreign
matter.
(3) Clean the cutter blade to
remove the adhesive
matter.
The cutter does not
return to the correct
position.
Paper fragments or other
foreign matter is stuck
around the cutter blade
or paper chute.
Remove the paper
fragments or foreign
matter.