Lexmark X862de - Over Heat Temperature Failure; Center Thermistor Failure

Diagnostic information 2-159
7500-432, -632, and -832
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921.00 Over heat temperature failure
922.00 Center thermistor failure
6 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Problem solved.
Step Check Yes No
1 Check the fuser unit assembly for proper installation.
Open the printer left door assembly, and check it.
Is the fuser unit assembly installed properly?
Go to step 2. Install the fuser
unit assembly
properly.
2 Check the fuser unit assembly for proper connection. Go to step 3. Replace the
connection.
3 Check the connection between the LVPS card assembly
P525 and the printer engine card assembly P401.
Are the cards connected properly?
Replace the fuser
unit assembly.
Replace the
connection.
4 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Problem solved.
Step Check Yes No
1 Check the fuser unit assembly for proper installation.
Open the printer left door assembly, and check it.
Is the fuser unit assembly installed properly?
Go to step 2. Install the fuser
unit assembly
properly.
2 Check the fuser unit assembly connection.
Is the fuser unit assembly properly connected?
Replace the fuser
unit assembly.
Replace the
connection.
3 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Problem solved.
Step Check Yes No