If your inkjet printer uses pigmented ink and you can fit a PCB in it, you can print right on the board, bake it, and etch it.
We tried a lot of different cheap and less cheap things in inkjet printers over on Homebrew_PCBs on Yahoogroups, then a gentleman named Volkin Sahin found that baking pigmented ink at a fairly high temperature allowed it to act as a resist that did not wash away.
I started a group just for this process, but there isn't much traffic there.
One of our members, James Newton, collected a lot of the relevant information and put it on his website here:
http://techref.massmind.org/techref/pcb/etch/directinkjetresist.htm
I have an Epson printer that takes a CD tray, it also takes an ID card tray and I have an ID card cutter that will cut PCBs 0.030 inches or less in thickness.
