Hi folks
About 2 years ago I was asked to investigate a method of printing a PCB layout directly onto the PCB laminate using an inkjet printer. A new $99 inkjet printer was stripped down and modified so that an A4-sized laminate could feed through on a flat tray. The modifications to the printer were relatively easy to do and the results were quite good.
Once the layer was printed, the laminate was baked in a low temperature oven to cure and harden the ink. This method can be used for 2-layer PCBs, so at this point the laminate can be returned to the printer to apply the 2nd layer on the flip side, if required, and baked again.
The PCB was then etched in Ferric Chloride. The document is a little too big to include here, but I would be happy to submit it for inclusion in the Projects and Articles section if there is any interest.
Cheers
John
