Solid ink remains in solid form until heated to a very specific temperature so that it turns to liquid, then instantly turns back to solid when printed. A precise stainless steel print head with tiny holes smaller than a human hair applies the solid ink to the printing media. The print head houses 1,236 nozzles jetting more than 30 million drops per second. The...

Printing, writing, drawing, and dyeing are a few activities that have one thing in common – ink. Ink is a dense liquid that is a combination of various ingredients. Ink enables us to show an image or text on a surface. The invention of ink was a natural outcome of the invention of writing. Humans first used ink more than 40 centuries ago, and still use it...