50.49 on HP LJ4350

[groovy]

Hi all,
looked on service manual but cannot find this error code.
Swapped fuser but error still here.
Any ideas?
Thanks.
Luigi - Digitalix

[Rick Martinez]

Did you install a new fuser or a fuser from another machine?

[prntrfxr]

I agree with Rick. A fuser may look like a 4350 but that doesnt mean its a 4350. Verify it. This error sometimes occurs when using a different voltage fuser as well.

[groovy]

I swapped two fuser on two machines, the first is a 4250 and the second is a 4350.
The error code stays on the same laserjet, it doesn't swap with the fuser unit.
In another laserjet 4350 i found the swing gears worn. It is a pain to access there...

[Rick Martinez]

Some times i have to let it reset by itself, leaving it off and unpluged for at least 30 min. before replacing the fuser unit.
Might want to check the DC controller board.

[MR Bill]

Well I got the book out also. If it's not the fuser then they say DC Controller or power supply. Kind of a guess at this point.

And yes there is no 50.49 code. 50 . X Up to 7 items . But not 49. anyway you might want to call Parts Now or Liberty tech support???