The miner seems to be skipping ores as shown here:
and here:
The ore is clearly within the 9x9 area centered on the pipe. In both cases is looks like it mined part of the deposit but skipped what is in the image.
And I am using the correct scanner:
it might be RP ore that you didnt add into the miners get this ore list? i cant really tell them apart that much but it might be that just my 2 cents
Two questions:
1: Are you using redpower? I have heard that it adds copper as well and maybe the miner can't pick it up. (Verify?)
2: WHAT ARE YOU USING FOR A COMPUTER??!! Thats a freakin' high resolution texture pack. (lol sorry for caps :P)
EDIT: Ninja'ed dangit 
@Both the miner can and does mine RP 2 ore with the ore dictionary. Also, 1 pic is with RP2 ore the other is IC2 ore.
Comp highlights are intel i7-2700, 16 GB ram, and a radeon HD 6970. I have minecraft set to use 4 GB of ram and don't notice any problems with this texture pack.
The miner will only do RP2 ore if you add it's block IDs in the IC2 config file.
See the tutorials section for a thread I started. It even has the (default) IDs that you need to add and info on how to do it.
@Both the miner can and does mine RP 2 ore with the ore dictionary. Also, 1 pic is with RP2 ore the other is IC2 ore.
they both look like RP2 ore to me but thats jus my 2 cents
