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,

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, 联想传真机M3120复印时提示 Cover is Open Close the Front Cover 是什么意思 m7020联想打印机出现以下提示:cover is open close the front cover请问是什么意思,如何解决该故障? 联想M3120 出现clean the corona wire iocated on the drum谢谢了, 联想M3120打印机,新加碳粉,Toner life End .Open the front cover,then replace the toner cartrid无法打印、复印, 联想(lenovo M3120)打印机显示：Dust on Drum.Open the front Cover and remove the Drum.Clean the corona wire located on the Drum.请问太原有联想打印机客服或售后吗?请给出详细地址. 出现back cover open close the back cover.联想7020出现back cover open close the back cover. 联想3220打印机出现unable to print see troubleshooting and routine 用8.2诊出现machine error 00 打印机出现printer 打印机出现toner ersetzen 联想M3120显示:open the front cover and remove the drum.clean the corona wire located on the drum. 打印机出现 FEED PAPER FIRST, 打印机油墨问题.惠普的油墨联想打印机可以用么?会不会有损害 联想M7120打印机缺粉提示什么英文联想M7120打印机缺粉的时候,显示屏会提示什么英文? please waiting .preparing print 打印机出现故障 兄弟打印机出现replace toner cartridge是什么意思 打印机佳能MF3110出现open printer cover 打印机打印纵向为什么会出现横向?