Digital BW, The Print

I'm working with a dozen photographs in Photoshop 7. They will be 
published in a book. Currently there is a range of B&W tones - from 
brownish to greenish when I print them on my 2200. I would love to know 
how to use Curves or some other PS tool or printer setting to get all 
the photographs to be the same subtle-cool sepia tone. Anyone with this 
experience?
Hope