Lexmark X940e Owners Manual

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5Are the PC cartridge units correctly installed?
Refer to the following images. Note that the far left PC 
cartridge unit is tilted in the first image.
Incorrect:
Correct:Go to the next 
step.Remove and 
reinstall the PC 
cartridge units 
correctly. See “PC 
cartridge unit 
removal” on 
page 4-54.
6Do the PC units easily slide in and out of the machine? Go to the next 
step.Replace any 
damaged PC units 
or any damaged 
erase lamp 
assembly. See 
“PC...

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904.07 CMY transfer roll retract motor time out
7Check that the transfer belt steering mechanism lock 
packaging was fully removed. If not removed before the 
transfer belt lever is lowered, the transfer belt steering 
mechanism lock might break and remain inside the machine 
in the area, as showing in the following image (A).
The following images show the transfer belt steering 
mechanism lock.
Are there any remnants from the packaging?Remove any 
packaging...

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905.00 NVM read/write cannot be executed error
905.01 Marking device video error
2Replace the transfer belt unit assembly. Go to “Transfer 
belt unit assembly removal” on page 4-16.
Does the error remain?Replace the lower 
printer engine card 
assembly.
Go to “Lower 
printer engine 
card assembly 
removal” on 
page 4-91.Problem solved.
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several...

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905.02 Marking device Xerographics error
905.03 Marking device other1 error
905.04 Marking device paper handling error
905.05 Marking device other2 error 907.00 Printhead polygon mirror motor error
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Replace the upper 
printer engine card 
assembly. 
Go to “Upper 
printer engine 
card assembly 
removal” on 
page 4-88.Problem solved.
Step Check Yes No
1Perform a POR.
Does the...

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907.01 Y laser SOS internal error 
907.02 M laser SOS internal error
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several 
print tests. 
If the problem 
remains, go to 
step 2.
2Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?Go to step 3. Problem solved.
3Perform a POR.
Does the error occur when the power is turned off/on?Replace the...

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907.03 C laser SOS internal error
907.04 K laser SOS internal error
3Perform a POR.
Does the error occur when the power is turned off/on?Replace the 
printhead 
assembly. 
Go to “Printhead 
assembly 
removal” on 
page 4-104.Problem solved.
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several 
print tests. 
If the problem 
remains, go to 
step 2.
2Turn the printer off for 60 seconds.
Does the...

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907.05 Printhead control error
908.00 Waste toner full error
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several 
print tests. 
If the problem 
remains, go to 
step 2.
2Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?Go to step 3. Problem solved.
3Perform a POR.
Does the error occur when the power is turned off/on?Replace the 
printhead...

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911.00 24V LVPS cooling fan error
911.01 Transfer belt drive motor cooling fan error
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several 
print tests. 
If the problem 
remains, go to 
step 2.
2Check the 24V LVPS cooling fan assembly for proper 
connection.
Is the above component properly connected?Replace the 24V 
LVPS cooling fan 
assembly.
Go to “24V LVPS 
cooling fan 
removal” on 
page...

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911.02 Fuser cooling fan lock error
918.00 Standard media exit shift error
Step Check Yes No
1Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Perform several 
print tests. 
If the problem 
remains, go to 
step 2.
2Check the fuser cooling fan for proper operation. 
Caution: When performing motor tests, 
ensure that all cover and door interlock 
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR...

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920.00 Fuser main lamp overheat error
920.01 Front thermistor disconnection error
Step Check Yes No
1Reset the fuser overheat failure lock out condition.
1. Enter the Diagnostics Menu.
2. Touch Fuser temp fail clear.
3. Touch Fuser temp fail clear.
Perform a POR.
Does the error occur when the power is turned off/on?Go to step 2. Go to step 5.
2Reset the fuser overheat failure lock out condition.
Check the fuser unit assembly for a media jam. 
Is there a...