单选 软件与IT认证综合练习2026-06-29 更新 0 阅读

Which of the following should the technician do FIRST when removing a paper jam?（）

  1. Open all the doors in the printer.
  2. Clear the print queue.
  3. Turn the printer off. 正确答案
  4. Take the printer offline.
参考答案：C

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