Lexmark 2390 003 - B/W Dot-matrix Printer Service Manual page 31

Abnormal Print Operation Problems
Symptom
Printer will not print,
or become Ready.
Abnormal operation,
incorrect characters,
or incorrect line
width.
Printer is ready but
will not print from the
computer correctly.
Undefined or
incorrect
character(s).
Slow printing speed.
Auto Sheet Feeder Problems
Symptom
Auto sheet feeder
will not feed paper.
Auto sheet feeder
double feeds.
Auto sheet feeder
has intermittent feed
problems.
Action
Be sure the interface cable is connected properly.
If the serial interface adapter is installed, be sure it
and its power interface cable are installed
correctly. (Some adapters do not have a separate
power cable.)
Go to the "No Print or Abnormal Print Service
Check" on page 2-23.
Go to the "Print Speed Service Check" on page
2-34.
Action
Be sure Sheet Feed is enabled in the Setup Mode.
Be sure the paper select lever is in the cut sheet
position.
Go to the "Auto Sheet Feeder (ASF) Service
Check" on page 2-15.
Diagnostic Information 2-7