The toner cartridge, also known as the photosensitive drum, is generally made up of the basic substrate of aluminum, as well as the photosensitive material coated on the substrate.

The print cartridge not only determines the quality of the print, but also determines how much money the user needs to spend in the process of using it.

In laser printers, more than 70% of the imaging components are concentrated in the print cartridge, and the quality of the print is actually determined to a large extent by the print cartridge. Selenium is a non-metallic chemical element, the chemical symbol is SE. Can be used as photosensitive materials, electrolytic manganese industry catalysts, animal body essential nutrients and plant beneficial nutrients and so on.