55.01.00 DC Controller error

[Carlos002]

Hello,

When I turn on the printer CM6030 an error appears on the screen: 55.01.00 DC Controller error and it does not print at all. Even if I push the engine test botton it does not print. I have tried the following steps to solve the problem with no luck:

* Replace DC controller (I tried with 3 different boards)

* Perform Full NVRAM initialization

* Replace Formatter, RAM memory and HDD

* Upgrade latest firmware

* Replace Interconnector between formatter and DC

* Replace high voltage power supply

* Replace Memory tag PCA (RM1-3585)

* Replace fuser power supply (RM1-3584)

* Replace laser scanners and their cables to DC

* Replace Scanner + ADF + SCB

* Replace environmental sensor

I am not able to find the solution to this problem, still the same error 55.01.00

Does anyone have any idea how this can be solved?

Thanks.

[Valsimot]

Have you tried without supplies and without fuser and belt? Dou you have any engine rotation? Try to unplug motors one by one to see will you get any engine movement if you don't have one.

[Carlos002]

Yes, I have tried with and without supplies, fuser and belt. On both cases it happens the same when I turn on the printer. The 3 big fans work but none of the motors work.

I have checked on a good printer and correct sequence is:

1- Left fan

2- Belt Alienation motor

3- Middle and right fans

When I turn on my printer the fans work but not the belt alienation motor. I know 100% this motor, DC controller and the cable between them are good (I have tested them on another printer and it works) but for some reason on my printer the DC does not send data to this motor to make it rotate