We have an AS400 machine that just finally expired and in its former live it printed TPS reports. The printing was done via a IBM 6400 Dot Matrix printer which we no longer need I was told I could try to sell it before its given to one of our vendors for $700. If you need to print lots of TPS reports very quietly and quickly this is a good printer to use. How about $600 or bo +shipping.
This is one I found on ebay same thing.
http://i7.ebayimg.com/05/i/07/c5/8e/4b_1.JPG
http://i22.ebayimg.com/02/i/07/c8/10/bc_1.JPG