If you are looking for printing electronics in the lab scale for research and development , Dimatix 2831 is the best. I have worked with different inkjet printers for research and development, the most robust and trustworthy for ink development I experienced is Dimatix. You can try other printers from PIxdro and Cera drop, all those printers are much more expensive and it doesn't make sense if you are planning to work in lab scale. The Dimatix 2831 is almost maintenance freee
If you're tight on budget, there have been quite a few inks that are supposed to work with commercial office printers, but I'm afraid it won't be very reliable.
As answered earlier, Dimatix printers are more suitable for printing of electronic patterns. However, for low cost fabrication you can also use desktop printers like EPSON L130 , HP Deskjet 1010, and other tank based printers for the same purpose. Desktop printers are suitable for flexible and thin substrates, you need to look for other options (or printer modification) if the substrate is rigid. Some references of desktop printed electronic devices are as following:
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