The Xerox ColorQube 8570DN uses solid ink, a technology alternative to laser printing. Solid ink printers melt wax blocks, slightly reminiscent of candle tallow, which is transferred to paper. The only other consumable the printer uses is a maintenance kit, which is cheap and lasts for a long time. This is an enormous difference with a laser printer, which apart from the toners also consumes developers, drums, a fuser, transfer belt, belt cleaner, 2nd BTR etc. This makes solid ink printer very cheap. Solid ink is very saturated and vivid in color, and very consistent, on pretty much every sort of paper. Solid ink printers only use a fraction of the materials of a laser printer, making them far less harmful for the environment.
It is recommended to always leave solid ink printers on, since a large quantity of ink is purged when the printer is turned on. This makes solid ink printers a poor choice for environments with very limited printing. It should also be noted the physical resolution of solid ink printers is lower than for most laser printers, making them less suited to fine line art and other applications requiring a high resolution.