Which of the following should a technician use to clean the glass on a flatbed scanner？（）

单项选择题Whichofthefollowingprintersprintsmulti-partformsatonce？（）

A.ink jet
B.thermal
C.impact
D.laser

多项选择题Atechnicianisinstallingaprinterthatusesaparallelcabletoconnecttoacomputer.Whichofthefollowingpinconfigurationsmightthetechnicianencounter？（）

A.9 pin D-type
B.36 pin Centronics
C.25 pin Centronics
D.13 pin D-type
E.25 pin D-type

单项选择题Aprintertakesalongtimetoprinthigh-endgraphics.WhichofthefollowingwouldbetheFIRSTactiontotake？（）

A.Recommend the use of smaller graphics.
B.Replace the toner cartridge.
C.Recommend connecting fewer users to the printer.
D.Check the amount of memory installed.

单项选择题Atechnicianisperformingscheduledpreventivemaintenanceonalaserprinter.Whichofthefollowingshouldthetechniciancleanorreplace？（）

A.fuser
B.ozone filter
C.transfer corona
D.primary corona

单项选择题Whichofthefollowingistheprocessascannerusestoscanimagestoacomputer？（）

A.Light is shown through the image and onto the scanner head
B.Light is reflected off a mirror onto the Charged Coupled Device （CCD）
C.Light is flashed off a mirror onto the CCD
D.Light is reflected off the image and into a camera