A technician is performing scheduled preventive maintenance on a laser printer. Which of the following should the technician clean or replace？ （）

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

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