Symptom/Check Table - Lexmark 2390 003 - B/W Dot-matrix Printer Service Manual

Symptom/Check Table

1. Select the symptom that best describes the problem.
2. Perform the appropriate action before you go to the indicated
service check.
Abnormal Indications
Symptom
7 or more lights turn
on but do not turn
off.
The Power light is
on, but POST will
not run.
Abnormal Noise Problems
Symptom
During POST,
abnormal noise
comes from the
carrier.
During idling,
abnormal noise
comes from the
printer.
When feeding paper,
abnormal noise is
created.
During printing or
POST, abnormal
noise is created.
2-6
Action
Disconnect the interface cable from the printer and
turn the printer off and then on. If POST now runs
correctly, the problem is in the computer or
interface cable.
Go to the "POST Service Check" on page
Action
Check the ribbon cartridge for binds or damage.
Go to the "Carrier Drive, Home Position Sensor,
Ribbon Feed Service Check" on page
Go to "Abnormal Noise Service Check" on page
2-14.
2-31.
2-17.