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【单项选择题】

A laser printer is sent for repair and the work order indicates that there is an image printing problem.  Which of the following should a technician do FIRST to confirm this problem?()

A、A.Run the calibration feature on the laser printer.

B、B.Run a self-test image page from the printer.

C、C.Clean the corona wire and return printer.

D、D.Print a test page from a computer.

更多“A laser printer is sent for repair and the work order indicates that there is an image printing problem.  Which of the following should a technician do FIRST to confirm this problem?()”相关的问题
第3题

A、 lower cost  B、 higher chirp  C、 easier to manufacture  D、 higher dispersion tolerance  E、 higher optical signal-to-noise ratio  

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第7题

A、Turning the laser to a specific ITU channel  B、Keeping the signal wavelength "locked" to a specific technology  C、Suppressing FWM and SBS non-linear effects  D、None ofthe above  

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