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一、打印机不要带电插拔 用户在使用打印机的过程中,经常会出现带电插拔烧接口板的现象(包括主机的接口),有时连主板也烧坏,富士通DPK系列打印机用户在使用过程中也经常出现这种现象。虽然这种现象占销售量的比例极小,但给带电插拔的直接用户造成的损失却是巨大的。例如:有一用户带电插拔,结果造成主板上的CPU、RAM、EPROM、MASKROM、接口芯片以及印制线都烧坏,主板报废。那么带电插拔为什么能造成这么严重的后果?要搞清这一点,首先要分析一下其中的机理。
First, the printer will not be charged and unplugged Users in the process of using the printer, there will often be charged plug interface (including the host interface), and sometimes the motherboard is also burned, Fujitsu DPK series printer users in the use of the process This phenomenon often occurs. Although this phenomenon accounts for a very small percentage of sales, the losses to direct users with live pluggable power are huge. For example: A user hot swap, resulting in the motherboard CPU, RAM, EPROM, MASKROM, interface chips and printed lines are burned, the motherboard scrapped. So plugging why can cause such a serious consequence? To figure out this, we must first analyze the mechanism.