I'm sorry about the issue. Are you trying to turn duplex off for copying? Or for printing from the computer?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
Please reply at the box below. Thank you,
Thank you. When printing, at the print dialog window, do you see the option Two-sided or Duplex, etc.? Please reply at the box below. Thank you.
OK, on the computer, after clicking on File -> Print option, then at the print dialog window, what happens when you uncheck the option Two-sided (or uncheck option Duplex), then print? Please reply at the box below. Thank you.
Can you please click on the website below for the illustrations:
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When you are available, please type at the box below, then click on the Send button below to communicate with me, so I can help. Thank you.