Post Symptom Table - Lexmark 7300 series Service Manual

4418-X6X
Code Name
120F Printhead
Select
121A Loop Timeout
Error
121B NVRAM
Control Section
Corrupted
121C Image Pipeline
Error

POST symptom table

Symptom
Power, Copy, or
Scan lights do
not come on;
motors do not
operate.
The paper feed
gears do not
turn.
2-8
Service Manual
Description
Installed printhead ID,
print command
printhead ID, or loaded
printhead records do
not agree.
Error detected that a
while loop or similar
loop timed out before
the event it was waiting
on finished.
The Control Section of
NVRAM is corrupted.
An error was detected
in the image pipeline.
Action
Go to the "Power service check" on page
go to "Control panel problems" on page
Go to the "Paper feed service check" on page
Action
Replace the print
cartridge.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
Unplug the
All-In-One; wait a few
seconds, then plug
the All-In-One back
in, and turn the power
on. If the error
remains, replace the
system board.
2-18. If okay,
2-10.
2-16.