Lexmark T654, T652, T650 Error Code 920.04 – Hot Roller Temp. Issues

 

Repair Advice for the  Lexmark T654, T652, T650 Error Code 920.04

I’m not going to pretend that I understand exactly what is going on when the  Lexmark T654, T652, T650 Error Code 920.04 happens. You read what the service manual has to say on the subject and you think your reading a document from a lawyer or court. I think I might need to hire an attorney to understand exactly what it means. Below I will try my best to give a few pointers on this error. Also, on this page you will find links to purchase a new fusing unit and at the bottom you will find a link to the fuser removal and replacement instructions.

Lexmark T654, T652, T650 Error Code 920.04 - Hot Roller Temp. Issues

Service Manual Repair Advice for the Error Code 920.04

Lexmark T654, T652, T650 Error Code 920.04 Fuser warm-up failure  Fuser type = 1
The fuser hot roll is too cool  when heating to desired  temperature after slope change  within standby control only.
1. Turn the machine off/on  and ensure the fuser unit  assembly is properly  installed.
2. Ensure the proper voltage  fuser is installed in the  machine.
3. Replace the fuser unit  assembly if problem  remains.

Additional Repair Advice

1. Turn the machine off then back on. Again, these types of errors happen during brief power outages like lightening storms or when utility work is being done nearby.

2. Poor contact on the lamps. I’m not exactly sure on these models but on models like the t640 series the points where the lamps made contact with the electrodes would get corroded and need cleaned. An emery board sometimes worked good in those situations.

3. Clean the surface of the thermistor and make sure it comes in contact with the surface of the hot roller when installed.

4. Replace the fusing assembly.

Click on the link below for the fuser replacement instructions

Lexmark T654, T652, T650 Fuser Assembly Replacement – 40X4418

40X4418-FRN -N Lexmark Fuser T650 T652 T654 X65X Factory Rebuilt With All Oem Parts T650 X652

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