单项选择题
A.Halogen lamp B.Light Emitting Diodes （LED） C.Fuser lamp D.Cleaning roller
Whichofthefollowingfailedcomponentswouldberesponsiblefo...
单项选择题Which of the following failed components would be responsible for the fuser unit not heating properly？（）
A.Halogen lamps B.Ball bearing C.Hot roller D.Pressure roller
Whichofthefollowingdevicescanrouteelectricalsignalsonly...
单项选择题Which of the following devices can route electrical signals only when activated by an external control signal？（）
A.Solenoid B.Relay C.Clutch D.Capacitor
WhichofthefollowingistheFIRSTstepatechnicianshouldtakew...
单项选择题Which of the following is the FIRST step a technician should take when troubleshooting a device issue？（）
A.Gather information from the customer. B.Isolate the problem on the device. C.Read the service documentation for possible causes. D.Check the parts life counters.
