Electrospray fog generation for fountain solution image generation

An electrospray apparatus, comprising:

• an array of cone-shaped emitters that emits a fog of charged droplets, wherein the charged droplets are produced in a carrier gas by the array of cone-shaped emitters and directed into a development zone of a charge image, and wherein the array of cone-shaped emitters comprises a cone jet electrospray micro-array that produces a high liquid concentration of the charged droplets in the carrier gas;
• a coaxial droplet generator;
• and
• a volatile conducting liquid shell, wherein the array of cone-shaped emitters electro-sprays an insulating liquid as the fog of the charged droplets by the coaxial droplet generator with the volatile conducting liquid shell.

A method of operating an electrospray apparatus, comprising:

• emitting a fog of charged droplets from an array of cone-shaped emitters;
• producing the charged droplets in a carrier gas by the array of cone-shaped emitters;
• directing the charged droplets into a development zone of a charge image;
• and
• wherein the array of cone-shaped emitters electro-sprays an insulating liquid as the fog of the charged droplets by a coaxial droplet generator with a volatile conducting liquid shell.