I think you'll find the solution you are looking for in: Excel Lesson 7-3: Use Page Setup to set margins more precisely and center the worksheet. Here's a direct link: ruclips.net/video/QyOhQe2Rhow/видео.html. This lesson will show you how to perfectly center the worksheet so that both margins are exactly the same.
What should I do if the margin on the excel sheet is correct and the right margin is wider when printing with an epson printer?
I think you'll find the solution you are looking for in: Excel Lesson 7-3: Use Page Setup to set margins more precisely and center the worksheet. Here's a direct link:
ruclips.net/video/QyOhQe2Rhow/видео.html.
This lesson will show you how to perfectly center the worksheet so that both margins are exactly the same.