No image or some of the image with SC 230

[aaahmmm]

machine mp 6001 , while copying or printing no image or some of the image appear and some times full appear , SC 230 appear .

[LNorris]

Re: No image or some of the image with SC 230

230
D
FGATE ON error: K
The FGATE ON signal does not assert within 15 second after the machine is
ready for the writing.
��
Defective ASIC
��
Poor connection between controller and BCU.
��
Defective BCU
1. Check the connection between the controller board and the BCU.
2. Replace the BCU.
3. Replace the controller board.

[aaahmmm]

Re: No image or some of the image with SC 230

what i need to replace or what i need to do to fix it