Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
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I am not sure at this point of two things about your question:
1. do you want remote control assistance, my adjusting the settings of your printer (on your computer) while you watch ?
2. how are you measuring the margin that results from your printout, the margins on the actual printout? are you saying '2.5 inches at the left, and another 2.5 at the right' ? or 2.5 inches when both left and right margins are added together?
3. are you printing from a Windows PC, or an Apple computer?
4. are you printing from MS Word, or some other program, please?