单选题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 Run the calibration feature on the laser printer.B Run a self-test
题目
单选题
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
Run the calibration feature on the laser printer.
B
Run a self-test image page from the printer.
C
Clean the corona wire and return printer.
D
Print a test page from a computer.