A user states that their laser printer prints black and white streaks about half an inch wide down the left side of every page. Which of the following components MOST likely needs replacing?（）
第1题：
Why do the American doctors think of using laser light to treat heart disease?
A．Beeause laser light is quite powerful．
B．Because laser light is penetrating．
C．Because laser light can destroy the blocking materials in human’s artery．
D．Because laser light can travel through the human body．
第2题：
When adding a new user and assigning a role, which user role has "read only" rights to theconfiguration and operational states? （）
第3题：
A. Faulty driver; reinstall or update driver
B. Bad fuser; place service call to printer manufacturer.
C. Excess toner on drum; perform maintenance (e.g. clean drum surface).
D. Deteriorating rollers and worn brushes; replace rollers and brushes.
第4题：
A user reports that when trying to print a document nothing comes out of the printer and states that the only printer in the printer dialog box is ’Microsoft Office Document Image Writer.’ The technician should understand that the problem is that the printer： （）
第5题：
A user has reported that they cannot access the company FTP site. The user states that they are using the IP address that was given to them “74200.92.105”. Which of the following is MOST likely the problem?（）
第6题：
A laser printer displays ‘perform user maintenance’. The manufacturer’s information was not available when the user performed the maintenance, and the laser printer continues to display the maintenance code. Which of the following items needs to be performed?（）
第7题：
A user states that when the user copies files from ‘My Documents’ to a network share, the files are no longer available locally. Which of the following BEST describes the reason the files are no longer visible?（）
第8题：
A.Toner
B.Transfer roller
C.Fuser
D.Pickup assembly
第9题：
A user reports that a printer has started producing a repetitive image defect on all printouts. Which of the following are the MOST likely causes of the problem?（） (Select TWO).
第10题：
A user calls the system administrator and states that they can no longer access the file server they had been working on all morning. To trouble shoot this problem， which step should the administrator take FIRST？（）