单项选择题
A.Writing
B.Fusing
C.Development
D.Transfer
单项选择题 Thecustomerhasadedicatedinkjetfaxmachinethatisusedtosendandreceivefaxesonlyfromthecorporateoffice.Theusercomplainsofstreaksonthereceivedfaxeswhiletheinternalself-printsarefine.Whichofthefollowingshouldatechnicianrecommend？（）
单项选择题 Anencodersensortypicallydetects：（）
单项选择题 Whichofthefollowingfunctionsisassociatedwiththedeveloperunit？（）