Which is better, printing books, black powder printer or ink printer?

The cost of toner is different from that of inkjet printer itself, and its working principle is also different. The toner machine sticks the powder to the paper and then fixes it on it by heating. Ink jet is a liquid raw material, and characters appear through the ink absorption ability of paper. If the cost is calculated, the color cost of inkjet printer is low, and the color cost of laser toner is high, but there is one advantage. Laser won't fade, it can be preserved forever, and inkjet is used unless you use special dye ink.