Lexmark X342N Service Manual - Page 24

Symptom tables - scanner locked

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7003-XXX Symptom tables POST symptom table These symptoms may appear during the POST (Power-on Self Test). See "Power-On Reset (POR) sequence" on page 2-1 for the sequence when the MFP is turned on. POST symptom table Symptom The main motor, cooling fan, and fuser do not come on. POST completes except lights do not come on. POST complete except display does not function. Main motor does not come on. Black boxes appear on the display, and the MFP fails to function Fan does not come on. Fuser lamp does not come on. Fuser lamp never turns off. The paper feed picks and tries to feed paper. CCD Lamp fails to illuminate. False Scanner Lock displayed. Action See "Controller card service check" on page 2-21. See "Operator panel service check" on page 2-27. See "Operator panel service check" on page 2-27. See "Main motor service check" on page 2-25. Turn off the MFP, wait ten seconds, and restart the MFP. See "Cooling fan service check" on page 2-20. See "Cold fuser service check" on page 2-20. See "Hot fuser service check" on page 2-24. See "Paper feed service checks" on page 2-29. See "CCD service check" on page 2-20. Check to see if the scanner is locked. Unlock the scanner if it is locked. If the scanner was unlocked, see "CCD service check" on page 2-20. MFP symptom table Symptom Front access cover will not close Fuser parts melted Toner not fused to the paper Blank page Black page Heavy background Light print White or black lines or bands Action See "Cover interlock switch service check" on page 2-22. See "Hot fuser service check" on page 2-24. See "Poor fusing of image" on page 2-32. See "Blank page" on page 2-31. See "Black page" on page 2-31. See "Heavy background" on page 2-32. See "Light print" on page 2-33. See "White or black lines or bands" on page 2-33. 2-2 Service Manual manuals4you.com

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2-2
Service Manual
7003-XXX
Symptom tables
POST symptom table
These symptoms may appear during the POST (Power-on Self Test). See
“Power–On Reset (POR) sequence”
on page 2-1
for the sequence when the MFP is turned on.
POST symptom table
MFP symptom table
Symptom
Action
The main motor, cooling fan, and
fuser do not come on.
See
“Controller card service check” on page 2-21
.
POST completes except lights do
not come on.
See
“Operator panel service check” on page 2-27
.
POST complete except display
does not function.
See
“Operator panel service check” on page 2-27
.
Main motor does not come on.
See
“Main motor service check” on page 2-25
.
Black boxes appear on the
display, and the MFP fails to
function
Turn off the MFP, wait ten seconds, and restart the MFP.
Fan does not come on.
See
“Cooling fan service check” on page 2-20
.
Fuser lamp does not come on.
See
“Cold fuser service check” on page 2-20
.
Fuser lamp never turns off.
See
“Hot fuser service check” on page 2-24
.
The paper feed picks and tries to
feed paper.
See
“Paper feed service checks” on page 2-29
.
CCD Lamp fails to illuminate.
See
“CCD service check” on page 2-20
.
False Scanner Lock
displayed.
Check to see if the scanner is locked. Unlock the scanner if it is
locked.
If the scanner was unlocked, see
“CCD service check” on
page 2-20
.
Symptom
Action
Front access cover will not close
See
“Cover interlock switch service check” on page 2-22
.
Fuser parts melted
See
“Hot fuser service check” on page 2-24
.
Toner not fused to the paper
See
“Poor fusing of image” on page 2-32
.
Blank page
See
“Blank page” on page 2-31
.
Black page
See
“Black page” on page 2-31
.
Heavy background
See
“Heavy background” on page 2-32
.
Light print
See
“Light print” on page 2-33
.
White or black lines or bands
See
“White or black lines or bands” on page 2-33
.
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