Lexmark 10G1664 - T 634dtnf B/W Laser Printer Service Manual page 87

FRU
4 Fuser top cover assembly
(assembly includes
thermistor and thermal
fuses)
Action
Disconnect the thermistor cable from the fuser control board at J6.
1
J2
1
J1
Resistance:
• HOT J2-1–J2-2 <10K ohms
• COLD approximately 450K ohms
If the resistance is incorrect, replace the fuser top cover assembly. If
the resistance is correct, check each pin of J6 to ground. If there is
continuity, replace the fuser cover assembly. See
removal" on page 4-25.
4060-xxx
1
J4
1
J5
1
J6
"Fuser cover
Diagnostic information
2-53