Hi David,

3 weeks ago we mentioned that the problem would not be the LSU if the 64-01 tests were OK.
I mentioned that 64-05 tests were required to confirm the print controller (MFP Board) was OK. So far you haven't mentioned this being done.
There is almost no chance the problem is caused by the PCU board, so don't order that part. The image problem you have is digital, so its coming from a controller.
Test 64-05 and see if you have the same problem. This test comes from the MFP board. That is where your problem most likely is, as you've confirmed the LSU is OK with the internal LSU controller tests in 64-01.