单选题A technician receives a dot matrix printer for repair and the work order states that the printer is only printing one-half of each character. Which of the following should the technician replace？（）Aprint headBfuserCinjectorDprint nozzle
单选题
A technician receives a dot matrix printer for repair and the work order states that the printer is only printing one-half of each character. Which of the following should the technician replace？（）
A
print head
B
fuser
C
injector
D
print nozzle
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