A.紙張潮濕 B.充電輥故障 C.調(diào)色劑類型錯(cuò)誤 D.輸出滾筒故障
A.USB B.SCSI 3 C.IEEE 1284 D.SERIAL DB 15
A.SPP B.ECP(Extended Capabilities Port) C.EPP(Enhanced Parallel Port) D.UPP