激光打印机的选购有啥要点?

2025年03月26日 12:01
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选购激光打印机时,衡量激光打印机的技术指标很多,主要有打印幅面、打印分辨率、标称打印速度、打印机内存、硒鼓寿命,CPU性能、送纸器总容量、接口等等。其中一些参数与喷墨打印机有些相似,在此就不再叙述。其他一些要点如下:
1、精度
反映激光打印机精度的指标是DPI(Dots Per Inch),即每英寸上有几个点。跟喷墨打印机一样,DPI的值越大,说明打印的效果越好,打印的图像越细致,当然价格也越贵,现在的激光打印机一般为600DPI、1200DPI,需要注意的是,即使在同一精度下,激光打印机的打印效果要比喷墨的好。
2、打印速度
反映激光打印机的速度参数是PPM(Page Per Minute),即每分钟打印的页数,PPM值越大,说明打印机打印速度越快,当然价格也越贵。
3、RET功能
RET(Resolution Enhancement Technology)是分辨率增强技术的意思。有RET功能的打印机,可以使打印出来的图形几乎没有锯齿,一台400×400DPI的激光打印机,如果有RET功能,其打印效果可以与600×600DPI的激光打印机想媲美。
4、打印接口
什么叫打印接口? PC将需要打印的文件或图象经过处理,转换成打印机能够接收的格式,通过电缆传送打印机,打印机打印出图象。而与PC相连的接口即通常所说的打印接口。 打印机目前主要有两种接口: 并行接口:最常用一种;传输速率较低;最快2Mbit; USB(Universal Series Bus):通用串行接口, 通用易用:统一的标准,不用对应微机的哪个接口,使用方便;数据传输速率较快,大约在12Mbit左右;同时USB的技术飞速发展,在USB 2.0的新版本中,其传输数率可以达到上百兆;
5、纸张大小
现在窄行激光打印机可以打印A4、B5型复印纸大小的文稿,而宽行激光打印机可以打印A3、B4型复印纸大小的文稿。如果你需要打印机较宽的图像,表格的话,就需要购买宽行的激光打印机,反之,则可以购买窄行激光打印机。当然宽行激光打印机的价格要比窄行激光打印机贵许多。

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