open the frone cover ang remove the drum . clean the corona wire located on the drum .这是我家打印机上出现的,啥意思啊?谁知道?

open the frone cover ang remove the drum . clean the corona wire located on the drum .这是我家打印机上出现的,啥意思啊?谁知道? 出现back cover open close the back cover. 复印机故障显示 back cover open close the back cover cover is open plesse close the scanner cover 出现back cover open close the back cover.联想7020出现back cover open close the back cover. 请问colse the back cover open Back cover open ciose the Back coverclose The sip-hole cover flips open for no-spill sipping. open frnt cover remove the paper翻译一下是什么意思open frnt cover remove the paper中文是什么意思 open policy cover note we declare that the shipment under the above open policy/cover note has been made. 打印机上的 back cover open close the back cover 是什么意思呀卡纸了怎么办呀 兄弟7010开机滴滴的响、出现Back cover open close the Back cover是怎么回事? 兄弟7010打印机滴滴响.back cover open the back cover怎么办 我的联想3220一体机提示Back cover open close the back cover.如题 联想传真机M3120复印时提示 Cover is Open Close the Front Cover 是什么意思 传真机出现 cover open Open the front Cover and remove the Drum then remove jammed paper.the scanner unit and . 联想打印机,M3120 ,出现close the back cover,back cover open!在那位大师可以,帮个忙啊,小弟,