The customer has a dedicated ink jet fax machine that is used to send and receive faxes only from the corporate office. The user complains of streaks on the received faxes while the internal self-prints are fine. Which of the following should a technician recommend？（）
A. Clean the scanner glass on the distant machine.
B. Clean the scanner glass on the local machine.
Clean the printer head on the local machine.
D. Call the telephone company to increase the line signal level.
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计算机唯一能够直接识别和处理的语言是（）。
A. 机器语言
B. 汇编语言
C. 高级语言
D. 甚高级语言
Which of the following stages in the laser print process attracts toner to the latent image on the photoconductor？（）
A. Writing
B. Fusing
C. Development
D. Transfer
将十进制数28.25转换成二进制数是（）。
A. 00101000.25
B. 00011100.01
C. 01011100.125
D. 00001110.5
Which of the following would be the BEST process for the technician to follow when beginning to diagnose a unit at a customers site？（）
A. Check the printers error log， and then inform the primary user what the issue is.
B. Go directly to the printer and investigate any issues that are found.
C. Investigate the printers status， then ask the primary user to write down what they think is wrong.
D. Gather information from the primary user， and then evaluate the printers condition.
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