canon advance C5235 C5240 C5250 C5030 how to fix it black screen

change the controller board, then your machine will be fine
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[@eddiefour5456]

We don't even know what you did. Waste of time

[@nazakatynazakt3258]

you will change the controller board, then your machine will be fine

[@atamavedoh]

Did you replace the card ?

[@nazakatynazakt3258]

Yes

[@atamavedoh]

@@nazakatynazakt3258 thanks