Lexmark X940e Owners Manual

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920.02 Fuser sub lamp overheat error
920.03 Rear thermistor disconnection error
4Perform a POR.
Does the error occur when the power is turned off/on?Replace the fuser 
unit assembly.
Go to “Fuser unit 
assembly 
removal” on 
page 4-15.Problem solved.
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...

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920.04 Main lamp warm up error
2Check the fuser unit assembly for proper installation. 
Is the fuser unit assembly installed properly?Go to step 3. Install the fuser 
unit assembly 
properly.
3Check the fuser unit assembly for proper connection.
Is the above component properly connected.Go to step 4. Repair the 
connection.
4Perform a POR.
Does the error occur when the power is turned off/on?Replace the fuser 
unit assembly.
Go to “Fuser unit 
assembly...

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920.05 Main lamp on-time error
920.06 Sub lamp warm-up failure 
Step Check Yes No
1Check the fuser unit assembly for a media jam. 
Is there a media jam in the fuser unit assembly?Remove the 
media.Go to step 2.
2Check the fuser unit assembly for proper installation. 
Is the fuser unit assembly installed properly?Go to step 3. Install the fuser 
unit assembly 
properly.
3Check the fuser unit assembly for proper connection.
Is the above component...

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920.07 Sub lamp on-time error
924.00 Yellow PC smartchip communication error
5Perform a POR.
Does the error occur when the power is turned off/on?Replace the AC 
drive card bracket 
assembly.
Go to “AC drive 
card bracket 
assembly 
removal” on 
page 4-109.Problem solved.
Step Check Yes No
1Check the fuser unit assembly for a media jam. 
Is there a media jam in the fuser unit assembly?Remove the 
media.Go to step 2.
2Check the fuser unit assembly for proper...

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924.01 Magenta PC smartchip communication error
4Check the appropriate smartchip socket, located on the 
developer interlock plate assembly for wear or damage.
Is the above component free from damage?Go to step 5. Replace the 
developer 
interlock plate 
assembly.Go to 
“Developer 
interlock plate 
assembly 
removal” on 
page 4-59.
5Perform a POR.
Does the error occur when the power is turned off/on?Replace the upper 
printer engine card 
assembly....

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924.02 Cyan PC smartchip communication error
924.03 Black PC smartchip communication error
Step Check Yes No
1Check the C PC cartridge for proper installation.
Is the above component properly installed?Go to step 2. Reinstall the C PC 
drum.
2Install the C PC drum in one of the other three PC locations. 
Ensure that all PC drum slots contain a PC drum. Perform a 
POR.
Does the error remain or follow the problematic cartridge?Replace the 
problematic PC 
drum...

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925.00 Sensor (Y ATC) error
925.01 Sensor (M ATC) error   
5Perform 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
1Reset the Y ATC failure lock out condition.
1. Enter diagnostic mode
2. Touch ATC sensor failure clear
3. Touch Y channel (925.00)
Perform a very large print test.
Does the...

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925.02 Sensor (C ATC) error 
2Check the sensor (M ATC) for proper connection.
Is the above component properly connected?Replace the M 
Developer unit 
assembly.
Go to “Developer 
unit assembly 
removal” on 
page 4-63.Replace the 
connection. 
3Perform a very large print test.
Does the error continue?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
1Reset...

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925.03 Sensor (K ATC) error 
930.00 Black toner RFID communication failure
Step Check Yes No
1Reset the K ATC failure lock out condition.
1. Enter diagnostic mode
2. Touch ATC sensor failure clear
3. Touch K channel (925.03)
Perform a very large print test.
Does the error continue?
Go to step 2. Problem solved.
2Check the sensor (K ATC) for proper connection.
Is the above component properly connected?Replace the K 
Developer unit 
assembly.
Go to...

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930.01 Cyan toner RFID communication failure
930.02 Magenta toner RFID communication failure
930.03 Yellow toner RFID communication failure
Step Check Yes No
1Check the C toner cartridge.
Is the C toner cartridge properly installed?Go to step 2. Reinstall the C 
toner cartridge.
2Check the sensor (M toner RFID) for proper connection.
Is the above component properly connected?Replace the 
CMYK toner add 
motor assembly.
Go to “CMYK 
toner add motor 
assembly...