A replaceable cartridge containing toner powder and often the photo-sensitive drum on which a laser printer generates the image to be printed. When the toner is exhausted, the cartridge is replaced by the user. See also fuser, laser printer.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。