Thanks for using JustAnswer. This is Leela and I will help you with the query today.
If you have a document or PDF file with 2 pages, you can do 2-sided printing as follows:
You can print on both sides of the paper by selecting the 2-Sided Printing checkbox on the Main tab
You can watch the following VIDEO if you have 2 separate pages on how to do 2 sided printing manually.
Is your document on the computer or physical paper with you? If you have a SINGLE document on the computer which is 2 PAGES then follow above instructions and you should be able to print. In case you have 2 separate pages then you can scan them as PDF, then combine them as single file with 2 pages and print them as 2-sided document. Incase you need any help combining the pdf files I can help you.
Please answer my queries and I can help you get the document printed on both sides of a single paper.
Your printer user guide for your reference : https://files.support.epson.com/docid/cpd3/cpd39381.pdf