Lexmark 2390 003 - B/W Dot-matrix Printer Service Manual page 28

Indication
LED Status
Power ON
Ready BLINK
Paper BLINK
Font BLINK
Pitch OFF
Alt BLINK
Others OFF
LED Status
Power ON
Ready BLINK
Paper BLINK
Font OFF
Pitch BLINK
Alt BLINK
Others OFF
LED Status
Power OFF
Ready OFF
Paper OFF
Font OFF
Pitch OFF
Alt OFF
Others OFF
2-4
Alarm Action
None Logical Error
Turn the machine off and then back on.
If you get the same error during
power-up, replace the main logic board
and readjust the bidirectional print
adjustment. If the printer completes
POST successfully and eventually gets
the same error check, go to
Problem Service Check" on page
None Hardware Drive Error
The printhead or the printhead cables
can cause this error. Go to
Service Check" on page
Turn the machine off and then back on.
If you get the same error, replace the
main logic board and readjust the
"Bidirectional Print Adjustment" on page
4-5. If the printer completes POST
successfully and eventually gets the
same error, go to
Service Check" on page
If the problem still exists, remove the
new main logic board, install the old
main logic board, then replace the sub
logic board.
None Power Failure
Check the continuity of the power cord
and the voltage of the user's outlet. If
they are correct, go to
Check" on page
"Intermittent
"Printhead
2-36.
"Intermittent Problem
2-20.
"Power Service
2-32.
2-20.