Final answer:
The two categories of laser printers are monochrome and color laser printers. Monochrome printers use a single black toner, while color printers use multiple toners to produce a wide color range, and both utilize the precise control of laser light.
Step-by-step explanation:
The two categories of laser printers discussed are likely to be monochrome laser printers and color laser printers. Monochrome laser printers are designed to print only in black and white, using a single color toner, making them suitable for documents that do not require color. On the other hand, color laser printers can print in full color by using multiple toners typically cyan, magenta, yellow, and black (CMYK) to produce a wide range of colors. Both types of laser printers harness the xerographic process, employing a precisely controlled laser to create an image on a photoconducting drum, which then transfers the image to paper.
Laser printers are known for their ability to produce high-quality images and text on paper. They can do significant information processing, such as creating sophisticated letters or fonts, and might contain an onboard computer to manage the printing tasks.