SageMother:
Did you know that's in the book, "Lasagna Gardening?" The book explains a system that begins by layering a garden in newspaper and wetting it down. That is one of the "layers." I know there is mulch, peat, and fertilizer added also, but I do not recall the order explained in the book.
Only water based inks are non-toxic. I personally won't use newspapers in the garden for this reason. But, I understand that others may choose to do so.