Homebrew PCBs

I found this group last night while looking for ways to use a pen 
plotter to apply etch resist to PCBs.  It appears from my limited 
perspective that you guys have found a way to use an inkjet for this 
and much more?  Would someone be so kind as to point me in the right 
direction to learn how you are doing this.  This will solve a number 
of issues for me.  Thank you!!!!

DRR