spyder 4 calibration and prints still too dark

As Paul noted, ideally you should use the ICC profile for your printer/media combination.  I don't use an Epson printer, so I don't know what naming convention they use, nor do I know if they printer/media profiles get installed when you install the printer driver.  You should either go out to Epson's website and try to find the profiles there, or do a Google search for ICC profiles for your printer.  When you get the appropriate profile(s), right-click on the profile and select "Install Profile" and it will copy it to the appropriate location on your hard drive (Windows\System32\Spool\Drivers\Color).

Also note that your monitor luminance may be too high, which will give the appearance of the prints being too dark.  After you  get the printer profile sorted out, if the prints are still too dark, try reducing the brightness setting on your monitor.  Unfortunately, there is no "correct" monitor luminance level.  The optimum luminance depends upon your print viewing illumination.  The brighter your print viewing environment, the higher your monitor luminance should be.  Also, laptop displays are notorious for having large gamma changes as the viewing angle changes.  To further complicate matters, it's very difficult to ensure that the viewing angle stays the same, since it likely will be different every time you open the lid.