Epson 1010 User Manual page 197

Note: For the standard width printer, printing on paper from 9 to
10 inches wide increases the minimum right and left margins to
0.9 inch (24 mm).
Note: The minimum for the right and left margins increases to
0.98 inch (25 mm) when printing on 10-inch wide paper on the
standard width printer or on 15- to 16-inch wide paper on the
wide carriage printer.
Continuous paper
0.51 inch (13mm) minimum
Technical Specifications 8-5