Color laserjet CP6015x has a blank screen. someone told me that it could be the dc controller.

Hi,
I have a color laserjet  cp 6015x which doesn't show anything when u turn it on ( blank screen). The booting process does not go all the way through either. someone told me that it might be the DC controller but i was wondering if anyone has  had that problem before and what they did to fix it?

Dc contrller didn't fix mine seems like the low power supply is not outting 1/2 current.will try.Tried simm also didn't work.

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