The short version
The IM C3500 is the 35 pages per minute model in Ricoh's IM C2000 to C6000 range, a 2019 release. Sister models, slowest first, with pages per minute: IM C2500 (25), IM C3000 (30), IM C4500 (45) and IM C6000 (60). Useful numbers: it needs the optional single pass document feeder to reach 120 scanned images a minute, loads 1,200 sheets as standard and 4,700 fully optioned and feeds card up to 300 gsm. Ricoh has replaced it with the IM C3510.
Image courtesy of the maker










