FINE (Full-photolithography Inkjet Nozzle Engineering) is an innovative key technology for inkjet printers developed in response to the challenge of simultaneously increasing both image quality and print speed. Rather than refining existing technologies, Canon engineers went back to the origin of the company's Bubble Jet technology and reexamined the ejection mechanism and print head manufacturing technology from a completely different angle, resulting in dramatic improvements in image quality, tonal expression, and image stability.

Microscopic ink droplets and ejection precision are the keys to high image quality. With conventional ejection systems, however, the finer the ink droplets, the more vulnerable they are to disturbances from print head movement and changes in ink viscosity due to temperature fluctuations, resulting in uneven and inconsistent ink dot placement.

Canon's FINE ejection system ensures all the ink under the heater is pushed out in a single thrust, creating precise, uniform droplets. Additionally, ejection speed has been increased to more than 1.5 times that of conventional systems, enabling more efficient application of ink droplets by reducing their susceptibility to airflow disturbances and increasing placement accuracy.

Canon's PIXMA MP810 ejects ink droplets as small as 1 picoliter (one trillionth of a liter) with exceptional precision, achieving excellent placement accuracy on the paper.