Printer "Coffee Drip Printer" which can print with ordinary drinkable coffee

Freshly brewed coffee with aroma is good, it smells fragrant, it is a drink that it is good to include in the mouth, but it seems that someone finally used such a coffee for printing.

Coffee Drip Printer - RIT: College of Imaging Arts & Sciences
https://cias.rit.edu/faculty-staff/256/faculty/1186

America·Rochester Institute of TechnologyMr. Ted Kinsman, Associate Professor at Faculty of Photography and Arts in Photographic and Arts, is a two-axis control device capable of front, rear, left and right movementSolenoid valveBy combining a liquid ejector using a solenoid valve (solenoid valve), a special printer that places a liquid crust on a large paper and draws a pattern "Coffee Drip Printer"Was developed.


Drops of large and small coffee lined up on paper. By setting different liquid volumes freely for each dot, it is now possible to express shading. The printing speed is 4000 drops per hour, which is about 1 drop per second.


In other words, this Coffee Drip Printer has made something like an ink jet printer that can print coffee instead of ink, but you can see how this printer actually moves in the following movie.

The drip printer in action - YouTube


Numerous drops of water on paper. On the paper there is a thin tube like a dropper ......


I will drop the blue liquid "Potato".


Things like "printer head" attached to two arms that move in the front, rear, left and right move, regularly dropping "ink". In this video, it is said that an aqueous solution mixed with blue ink instead of coffee is used.


When the print reached the final stage, I became able to understand the full picture of the image. Although it is pixel density which can not be called "high definition", the unique texture was used in old newspaper printingDot printingThe same thing.


And the print that actually "printed" with coffee is like this. Whether there was a lot of liquid, there are parts where grains coalesced in some places, but the contents of the photograph are transmitted to the extent that it can be said unexpectedly. Somehow it feels a sense of distance to the background behind the person, a mysterious finish.


That's why I tried printing with "cheap wine" here. Compared with coffee, bleeding strongly may be characteristic of wine as ink.


A regular printer sends paper and places ink, but this Coffee Drip Printer had an interesting structure that ink side moves. I would like to actually see the quality of the finished image with my own eyes, but I am wondering what kind of scent it will be on during printing.