[Error Code] Taskalfa 520i C0060

[labbe]

Dear all,

last firm :05.00.0020
5000 pages

I 'm looking for information about this error code, service manual is very light about it.

I used the SIM 935 with mode 2 and the copier works well, in the sm it said :
After removing the cause of the problem, be sure to change the setting in OFF(mode 1).
But I changed the power supply, the mainboard, engine board and same problem.

a idea?

Thanks in advance for your help