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單項選擇題

Which of the following can cause a ribbon on an impact printer to tear?（）

A. The fuser
B. The toner cartridge
C. The platen
D. The printhead

單項選擇題

A user is unable to print to the network printer. A print job appears in their print queue and cannotbe deleted. The user has the correct permissions to modify and delete print jobs. All other users are able to print to the network printer. Which of the following procedures should the technician try FIRST?（）

A. Cycle the power on the network printer.
B. Verify the network cable is connected to the printer.
C. Reinstall the printer driver.
D. Restart the print spooler service.