Amazon.com: TCM USA Ricoh SP 3600DN Alternative Black High Yield Toner Cartridge. Made in USA. Replacement for use in Ricoh SP 3600, SP 3610, SP 4510 Series Printers. Yields up to 6,000
Amazon.com: TCT Premium Compatible Ricoh SP-3600 407319 Black High Yield Toner Cartridge Replacement for Ricoh Aficio SP 3600DN 3600SF SP3610SF Printers (6,000 Pages)- 2 Pack : Office Products
Ricoh SP 3600SF Black High Yield Toner Cartridge, Genuine (G3203)