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 SP3600T High Volume Black Toner Cartridge $97.80/EA Dowling Douglas SP3600T
LD Compatible Ricoh 407319 / SP 4500A Set of 3 High Yield Black Toner Cartridges for use in SP 3600DN, SP 3600SF, SP 3610SF, SP 4510DN, SP 4510SF & MP 401SPF (6,000