不同类型的打印机不仅它们的物理结构、应用领域不相同，而且打印原理也有本质的区别，至于打印技术就更是完全不同了。下面就当今打印机领域应用最为广泛的针式打印机、喷墨打印机、激光打印机和热转换打印机等的工作原理作一描述。-Different types of printers not only their physical structure, applications are not the same, and printing principle, there are fundamental differences, as printing is even more completely different. The following areas on today s most widely used printer dot matrix printer, inkjet printers, laser printers and thermal transfer printer works as a descr iption.