Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
How to reverse a size change in printing, or in scanning operations, or in photocopying operations, depends upon basic things, to start with.
Such as: Which of those three operations you want to change the size of.
And, whether you are doing that operation on the printer itself, or from the computer.
And, what program or application window, you are doing the operation in.
Please tell me those three factors, and I will instruct you as to how to change the size.
Use the Reply To Expert function to let me know. Thanks.