this is an expansion of the previous inking step [link]
I thought I would show in more detail how I clean up my traditionally inked line work in a quick couple minutes in photoshop.
1. top frame shows the raw scan of inked work at 600dpi. 2. second frame from the top shows Image>Adjustment>Levels with black and white selections adjusted. 3. third frame down shows a Filter>Brushstrokes>Accented edges Setting adjust according to page. in this case it was edge width=2 brightness=32 smoothness=8
last two frames show a comparison of the originally scanned line work to the cleaned up line work at web shown size.