单项选择题
When using an ink jet printer， a user reports that colors seem to be missing intermittently. Which of the following is MOST likely the cause？（）
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.
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单项选择题
Ashippingdepartmentisreportingthatalaserprinterinthereceivingareaisbecomingjammedbecausetheprinterattemptstopullseveralsheetsofpaperforeachprint.Whichofthefollowingmaybethecause？（）
A.The paper is sticking to the corona wire and causing the jam.
B.Humidity is causing the paper to stick together.
C.A4 paper is being used and may not be supported by laser printers.
D.The fusion roller is dirty and pulling too many sheets of paper. -
单项选择题
Atechnicianreceivesanewprinterforrepairandtheworkorderstatesthatwhenpoweredontheprintermakesaloudnoiseandwillnotprint.Whichofthefollowingactionsshouldthetechniciantake？（）
A.Install new drivers on the computer.
B.Install a new ink cartridge.
C.Install a print head on the printer.
D.Remove the packing tape from the print head. -
单项选择题
Atechnicianhasaddedmemorytoalaserprinter.Toallowtheprinterdriversoftwaretousetheadditionalmemory，theamountofmemoryshouldbemodifiedin：（）
A.the Device Settings tab in Printer Properties.
B.Device Manager by clicking on the printer’s driver and selecting Parameters.
C.Device Manager by selecting Upgrade Driver.
D.the Color Management tab in Printer Properties.
