Photoshop :: Removing 'ghost Text' And Gutter...

i am trying to clean up grayscale scans of line text to prepare it for ocr processing. i need to do three things in BATCH processes:

1) there is often some 'ghost text' that comes through from the other side of thinner pages when they are scanned, as well as some page texture. i need to strip these lighter gray marks without altering the black text. i don't want to binarize the text, as this reduces the text quality. just clear out the specific 'tone bands' of gray that are marking up the pages.

2) basic page splitting.

3) remove center gutter shadows left by scanning on a flatbed scanner.