Ricoh MP 1813L Operating Instructions Manual page 68

2. Copying
1. Front
2. Back
2 Sided 4 Pages
Copies 2 two-sided originals onto one sheet with two pages per side.
2 Sided 8 Pages
Copies 4 two-sided originals onto one sheet with four pages per side.
66
GCSHVYAE
Combine 2 Side
GCSHVY1E
Combine 2 Side
GCSHVY2E