There are several articles on how to hack an inkjet printer for printing circuit boards. The secret ingredient is silver nanoparticle based inks and conductive tape. The articles include:
- Hack Your Useless Inkjet To Print Electronics Circuits from Fastcolabs
- How to inkjet-print circuits at fraction of time and cost from Kurzwielai News
- Instant inkjet circuits: lab-based inkjet printing to support rapid prototyping of UbiComp devices from the ACM