打印机是计算机系统重要的外部设备。目前,喷墨打印机倍受青睐,因其接近激光打印机的打印质量,极低的工作噪声、较低的整机成本,成为家庭、商用的首选设备。一、选购选购打印机前有必要先对其技术与产品指标进行了解。1.打印精度dpi dpi是衡量打印质量的一个重要指标。所谓dpi是指打印机在每时范围内可打印的点数。分辨率越高,图像精度就越高,打印质量自然就越好。值得注意的是300dpi是人眼能否辨别输出文本图像锯齿边缘的临界点,如果再考虑到喷墨打印机工作过程中,可 Printers are important external devices in computer systems. At present, inkjet printers are favored, because of their close to the laser printer’s print quality, low noise, lower overall cost, become the preferred home, commercial equipment. First, the purchase of optional printer before it is necessary to first understand its technical and product indicators. 1. Print accuracy dpi dpi is a measure of print quality is an important indicator. The so-called dpi refers to the printer in the range of printable points. The higher the resolution, the higher the image accuracy and the better the print quality. It is noteworthy that 300dpi is the human eye can distinguish the edge of the output image of the jagged critical point, and then consider the inkjet printer during work, may