Mx2651

[Norvenmunkey]

Hi have a few of these machines that constantly give L4-03. Have checked and replaced fuser and main charge unit.

[driving lots of miles]

Hi have a few of these machines that constantly give L4-03. Have checked and replaced fuser and main charge unit.

It sounds more like a drive problem than the fuser itself.
This is a really old machine and if it has quite a few copies it is ready for replacement.
this is what the book says

Use SIM6-1 to check the operation of the fusing motor.
Replace the Fusing motor.
Check connection of the fusing motor harness and the connection.
Replace the PCU PWB.

[mloudy]

Definately replace the fusing drive motor. That is noramlly the fix for repeat L4-03 errors. Check the entire unit.

The MX-2651 is a pretty recent model.