Epson 4500 - Manual (Page 51)

Using Single Sheets
Your printer can accommodate single sheets with a width of 7.2 inches
or 182 mm to 14.3 inches or 364 mm.
If you do most of your printing on single sheets, you may find it more
convenient to install the optional cut sheet feeder. This option
automatically inserts a new sheet and can hold up to 150 pages. For
more details, see Chapter 5.
Loading Paper
1. Push the paper release lever back to the single-sheet position.
Paper Handling 2-3