Printer cartridges wholesale 88A12A80A

Cartridges, also known as the photosensitive drum. It not only determines the print quality is good or bad, but also determines how much money the user in the course it takes. In the laser printer, 70% of the imaging unit focused on the drum, the print quality is good or bad in fact, it is largely determined by the drum. The basic structure is generally substantially drum base made of aluminum and coated with a photosensitive material on a substrate composed. Depending on the light-sensitive materials can be divided into three basic types: OPC drum (organic photoconductive materials), toner cartridge (Se selenium) and ceramic drum (a-si ceramic). From the point of view life, OPC drum life is short, generally only about 3000, of course, price is the most expensive. Se drum life expectancy is around 9000, a-si drum life expectancy is up to 90,000, the price naturally so on the rise. From the composition, generally only three OPC drum. The first layer is aluminum, the second layer is an insulating layer, the third layer is the photosensitive layer. The surface of the drum (Se selenium) and ceramic drum (a-si ceramic) is made up of four - five synthetic substances. Especially ceramic drum, it's the fourth layer is the first protective layer, the fifth layer is a protective layer of the second, fourth, fifth layer is used to protect the light-sensitive layer, in order to guarantee long life of the drum. Drum life refers to the amount of paper the printer can print cartridges. Amount of paper that can be printed, the longer cartridge life. The length of the drum life is determined by the drum. For print relatively arduous task of small office users, should be willing to a higher monthly print load (more than 10,000) and long life cartridge (life of up to 20,000