Their prices are becoming more affordable and operating costs lower.
Not to mention the much larger range of techniques used, which have nothing to do with those we know from home printers.
Printed roll, solvent, water, anhydrous - long to exchange.The quality of such printouts is higher, which entails the obvious higher costs of printing itself.
Solid ink printers, also known as phase-change printers, are a type of thermal transfer printer.
They use solid sticks of CMYK-coloured ink, similar in consistency to candle wax, which are melted and fed into a piezo crystal operated print-head.
The printhead sprays the ink on a rotating, oil coated drum.The paper then passes over the print drum, at which time the image is immediately transferred, or transfixed, to the page.
Solid ink printers can produce excellent results.Acquisition and operating costs are similar to laser printers. Drawbacks of the technology include high energy consumption and long warm-up times from a cold state. Also, some users complain that the resulting prints are difficult to write on, as the wax tends to repel inks from pens, and are difficult to feed through automatic document feeders, but these traits have been significantly reduced in later models.
In addition, this type of printer is only available from one manufacturer, Xerox, manufactured as part of their Xerox Phaser office printer line.
Laser printing is an electrostatic digital printing process.
This enables laser printing to copy images more quickly than most photocopiers.Źródło: https://en.wikipedia.org/wiki/Laser_printing.