Lexmark C935 - Fuser Sub Lamp Overheat Error

2-102 Printer Service Manual
5057-XXX
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920.02 Fuser sub lamp overheat error
920.03 Rear thermistor disconnection error
4
Perform 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
1 Reset the fuser overheat failure lock out condition.
1. Enter the Diagnostics Menu.
2. Select Fuser temp fail clear.
3. Select 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.
2
Reset the fuser overheat failure lock out condition.
Check the fuser unit assembly for a media jam.
Is there a media jam in the fuser unit assembly?
Remove the
media.
Go to step 3.
3
Check the fuser unit assembly for proper installation.
Is the fuser unit assembly installed properly?
Go to step 4. Install the fuser
unit assembly
properly.
4
Check the fuser unit assembly for proper connection.
Is the above component properly connected.
Go to step 5. Repair the
connection.
5
Perform a print test.
Does the error continue?
Replace the fuser
unit assembly.
Go to “Fuser unit
assembly
removal” on
page 4-15.
Go to step 6.
Problem solved.
6
Perform 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
1 Check 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.
Step Check Yes No