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8.打印机 计算机常用的一种输出设备,它将汁算机处理的字符和图形符号打印到纸上。打印机通常分为针式点阵打印机、喷墨式打印机和激光式打印机三种。 (1)针式点阵式。一种最普通的打印机,打印时打印头上的钢针敲打色带,在纸上打出一个个点,每个字符和图形都是由许多点构成的。针式打印机的针数越多,打印就越清晰,一般分为9针、16针和24针等,其中24针比较常用。这种打印机的主要特点是价格较低.可以打印大幅面纸张,但噪声大,打印速度慢,而且打印效果一般,常见的主要有EPSON LQ1600K、STAR CR3240等。
8. Printer A commonly used output device for computers that prints computer-processed characters and graphic symbols onto paper. Printers are usually divided into dot matrix printers, inkjet printers and laser printers three. (1) pin matrix. One of the most common type of printer, the printhead touches the ribbon with a steel pin and places dots on the paper, each of which consists of a number of dots. Needle-type printer, the more stitches, the more clear the print, generally divided into 9-pin, 16-pin and 24-pin, 24-pin more commonly used. The main features of this printer is the lower price. Can print large format paper, but the noise, slow print speed, and the printing effect in general, the main common EPSON LQ1600K, STAR CR3240 and so on.