Help me fix C440 error in E 355 !!!!!!!!!!!!! .............. serious problem

[minhkhanh]

Hi every body,

I cleared the error with code 08-400 ( error 5 ). The Machine still error again after reboot
I tested on another machine and sure fuser unit and power supply works well.
The problem in LGC board, ( The ROM on it work well ).

Any one help me fix that error !!!

[Meach]

TSB-1013.pdfTSB-1036.pdf

[minhkhanh]

TSB-1013.pdfTSB-1036.pdf

I do it that way but not success, Do you have another way?

whether newer firmware can solve the problem?

[michaelc]

So the fuser and the psu worked in another machine?

[minhkhanh]

So the fuser and the psu worked in another machine?

Yes,

[michaelc]

if your thinking its the logic board could you try that on another machine to check it out? Check the PSU to maybe. Firmware is always a good idea on the machines.

[minhkhanh]

if your thinking its the logic board could you try that on another machine to check it out? Check the PSU to maybe. Firmware is always a good idea on the machines.

I tried LGC on another machine, but still does not work.Errors have been confirmed in LGC
I tried up firmware, but still does not work

[michaelc]

Have you tried the power supply board?

[minhkhanh]

In this case, what components on the LGC is damaged?

[smiley]

some of those ic on the logic board is busted the only way is to replace it. i see this before on the older estudio copier those who are 35 and 45 ppm.