Epson 4500 - Manual (Page 63)

Using Continuous Paper
The printer remembers the loading position and advances each page to
the same position. If you need to adjust the loading position, use the
micro-adjustment feature. See the section on setting the loading
position in Chapter 3.
CAUTION:
Never adjust the loading position using the
platen knob and never turn the platen knob while the printer
is turned on.
Before you begin printing, be sure to check the page length and skip
over perforation settings, and readjust these settings if necessary. See
the sections on page length and skip over perforation in Chapter 3.
Paper Handling
2-15