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激光打印机的结构比较复杂,最主要的部件有滚筒(称硒鼓或感光鼓)、墨粉、带墨粉的轧辊和初级高压电晕放电线等都装在一个可以取下的盒子里。当更换墨粉时,可以把整个盒子取下更换,激光打印机的打印过程可分成6步:1、滚筒(硒鼓或感光鼓)充电开始时滚筒上没有充电,接着使滚筒的外层被均匀充电,充电电压达-600V左右。滚筒是激光打印机的关键部件。鼓的外面涂有一层光敏村料,鼓的里面是一层薄铝片并接地。外层的光敏涂层是绝缘体,如果外层带电可以保留带电作充
The structure of the laser printer is more complicated. The most important parts are rollers (called drums or drums), toner, rollers with toner, and primary high voltage corona discharge wires, all housed in a removable box. When the toner is replaced, the whole box can be removed and replaced. The printing process of the laser printer can be divided into 6 steps: 1. The drum (drum or drum) is not charged on the drum at the beginning of charging, and then the drum’s outer layer is evenly charged , Charging voltage up to -600V or so. Rollers are a key part of laser printers. Drum outside coated with a layer of light-sensitive material, the drum is a layer of thin aluminum inside and grounded. The outer photosensitive coating is an insulator, if the outer charge can be kept charged for charging