Lexmark Jetprinter 4079-00 series, Service Manual

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2-2
4079-00X
2. If the printer has power but does not complete POST, with
Ready on the display, go to the “Operator Panel Service Check”
on page 2-31 .
3. Run Test Print A. To enter Controller Diagnostics, press and
hold Menu and Print Buffer while turning on the printer. After the
POST is complete, the first item in the Controller Diagnostics
menu is displayed. Use coated paper if available. If you use reg-
ular paper, allow for some color convergence. If an error code or
detectable symptom occurs, go to the “Error Code Table”. If you
have a symptom only, go to the
“Operator Codes And Symptom
Table” on page 2-8 .
4. Turn the printer off and connect it to a host computer. Turn the
printer on and send data from the computer to the printer. You
can use the test print for this. If the data does not print as it was
sent, go to the
“Host Print Service Check” on page 2-22 .
Error Code Table
To use this error code table:
1. Turn off the printer, wait four or more seconds, then turn on the
printer.
2. Note any error code number that appears in the display, look for
that code in the tables below, and take the indicated action.
•
If two error codes are listed in the table: the top number is dis-
played if the controller board is installed; the bottom number is
displayed if the controller board is removed.
•
Some error codes are operator-correctable. See “Operator
Codes And Symptom Table” on page 2-8 .
•
Other codes indicate the printer is performing an operation; no
action is needed. For example, “04 Reset”, or “05 Self Test”
means the printer is running POST.
3. If no error code is displayed, count the number of beeps and
look for that number in the tables.
4. If no error code is displayed, and no beeps are heard, look for
the symptom in the table and take the indicated action.
5. If you are unable to correct the problem using this index, go to
the “Undetermined Problem Service Check” on page 2-47 .
Note: If POST fails and a message is displayed, disregard the mes-
sage and count the number of beeps.