MANRoland 202E electrical-software problem

Hello,

When I turn the main switch of my Roland 202E on, I get this errors on the display.

102 Computer 10 CANBUS error
105 Computer 10 CANBUS off
100 Computer 4 no answer
100 Computer 3 no answer
100 Computer 2 no answer
100 Computer 1 no answer

Then I have to wait for an hour for computer to restart. When the machine is working - printing, there are no errors. This happens only when I turn on the machine. Any idea guys?

Thanks

Denis