单项选择题
A.The printer needs to be calibrated.
B.There is a problem with the document being printed.
C.The print head is clogged.
D.An incorrect paper type is being used.
单项选择题 Ashippingdepartmentisreportingthatalaserprinterinthereceivingareaisbecomingjammedbecausetheprinterattemptstopullseveralsheetsofpaperforeachprint.Whichofthefollowingmaybethecause？（）
单项选择题 Atechnicianreceivesanewprinterforrepairandtheworkorderstatesthatwhenpoweredontheprintermakesaloudnoiseandwillnotprint.Whichofthefollowingactionsshouldthetechniciantake？（）
单项选择题 Atechnicianhasaddedmemorytoalaserprinter.Toallowtheprinterdriversoftwaretousetheadditionalmemory，theamountofmemoryshouldbemodifiedin：（）