Printing with Heat or Crystals?

You can generally categorize inkjet printing systems into two: Epson and everybody else. It's because the printer market, for the most part, adopts the thermal bubble system that uses heat to print and produce documents and images. On the other hand, out of the Big Three printers (Canon, Hewlett-Packard, and Epson), Epson is the only brand that widely used piezoelectric printing. The brands are becoming more diverse in the systems they choose, with some offering both systems.

In a thermal bubble system, heat produced by a set of resistors vaporizes the ink, forcing it to form a bubble. The moment the bubble pops, the resulting action will draw more ink out of the cartridge and to the printing surface. The system is capable of firing up to 600 droplets of ink at a time via nozzles, one droplet per nozzle.

On the other hand, a piezoelectric system harnesses the vibration properties of piezo crystals. While experts say you can make some at home using Rochelle salt, the ones used in printers and various applications use ceramic materials that require special processes. The crystals vibrate in response to an electric current, pushing the ink out of the nozzle and drawing more ink from the reservoir.

For true versatility, consumers can go for the Xerox Phaser 8560, which can print, scan, copy, and fax with ease. 

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