Epson Stylus Color 900 Manual page 57

Advanced Printing
5 If the Paper Size setting
you selected is larger
than the maximum size
that can be printed on
your printer, you see the
following dialog box:
In the Output Paper list,
select the actual size of
the paper loaded in the
printer and click OK. This automatically turns on the Fit to Page
setting so the document fits into the printable area on the output paper
you select.
The selected Paper Size, reduction percentage, and Output Paper
settings now appear above the printer graphic.
Paper Size setting
reduction percentage
Output Paper setting
If you want to adjust the proportions or sizes further, go to
you're ready to print, go to step 8.
Output
Paper list
step 6. If
Page 57