Epson EPL-6200 Reference Manual page 191

Orientation
Specify whether the page is to be printed in the portrait (vertical)
or landscape (horizontal) orientation.
Scale
This setting enables you to shrink or enlarge the image to print.
You can enter any percentage from 25% to 400%. The default is
100%. To shrink the image, specify a percentage that is lower than
100%. To enlarge the image, specify a percentage that is higher
than 100%. However, if you can shrink or enlarge the image to
print in the application that you are printing from, do so in the
application and not through the printer driver.
Custom Page Default
Paper Size
Enter the desired Width and Height values for the custom page.
Note:
When you use custom paper size, make sure Width and Height that
you specify do not exceed the custom paper size supported by your
printer.
Image data may not print properly if you use a custom paper size.
Margins
Specify the desired Top, Bottom, Left, and Right margin values.
Custom Page Name
Enter a name for the custom page that you are creating.
Summary
Displays all setting values in the Page Setup dialog box.
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Using the Printer Driver For Macintosh