Epson CX6500 Reference Manual page 203

Select the following
settings.
1 page covers xx sheets
Overlapping Alignment
Marks
Trim Lines
Panel Selection
Note:
Specifies how many printed sheets of paper the enlarged
document page will cover. You can choose from 4, 9, or 16
sheets.
Slightly overlaps the panels and prints alignment markers so
that the panels can be aligned more precisely.
Prints border lines on the panels to guide you when
trimming the pages.
Click the panels you do not need to print, then click the OK
button to print the remaining panels.