Diagnostic Information 2-51
5016-001
Fuser Cold Service Check
922 Error - Fuser below maintenance count.
Note: If selected, turn Power Saver off.
Error codes 920, 921 and 922 may display for a cold fuser failure. A
920 fuser error caused by low line voltage may be cleared by turning
the printer on and off.
FRU Action
1 Fuser Assembly
Fuser Lamp
Circuit
Be sure the fuser assembly is correctly installed
and locked down. Disconnect the AC power
cord from the printer. Disconnect CN406 from
the LVPS board and check for continuity
between pins 1 and 2 on the CN406 cable
connector.
• If incorrect, go to step 2.
• If correct, check the voltage between CN406
Pin 1 and 2. The voltage should read the
same as the AC line voltage.
• If incorrect replace the LVPS.
2 Fuser Lamp
Thermostat
Fuser Lamp
Contacts
Remove the fuser assembly from the printer.
Note: Take care not to damage any pins when
checking continuity.
Check continuity between the two outer fuser
lamp contacts of the autoconnector (HCU cable)
located on the bottom of the fuser assembly.
• If correct, go to step 3.
• If incorrect, check the fuser lamp, thermostat,
fuser lamp contacts and HCU cable, replacing
any defective parts.
3 Interlock Switches Go to the “Cover Interlock Service Check” on
page 2-45.
