My company is committed to the laser printer drum unit, compact and copier drum frame, the research and development and production of the powder compact.
2
这个例子是一个负电荷的硒鼓和纸张,碳粉和带正电的是共同在今天的数码复印机。
This example is of a negatively charged drum and paper, and positively charged toner as is common in today's digital copiers.
3
一些复印机,其中大部分是老式模拟复印机,采用了带正电荷的硒鼓和纸张,碳粉和负电荷。
Some copiers, mostly older analog copiers, employ a positively charged drum and paper, and negatively charged toner.