"me" wrote in message
...
"William Sommerwerck" wrote in
:

From service manual;

Table 7-17 Random Horizontal Black Lines

Possible Cause Action

Laser/Scanning Assembly Replace the Laser/Scanner Assembly.
misaligned or damaged.

DC Controller PCA Replace the DC Controller PCA

Thanks for the confirmation of my intuitive analysis.

It's a simple fix -- but who knows what it will cost?