Ricoh Aficio MP C7500 Operating Instructions Manual page 12

One-Sided Combine
Combines up to eight pages of originals onto one side of a sheet.
See p.72 "One-Sided Combine".
Two-Sided Combine
Combines up to 16 pages of originals onto two sides of one sheet.
See p.76 "Two-Sided Combine".
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BAS035S
BAS038S
BAS041S