Original Toner Pump Supply Unit for Ricoh MP C3004 C3504 C4504 C6004 - AliExpress
Amazon.com: Ricoh 841813, 841814, 841815, 841816 Standard Yield Toner Cartridge Set - Ricoh MP C3003 : Office Products
Toner Supply Unit For Ricoh Mpc3004 Mpc3504 Mpc4504 Mpc5504 Mpc6004 Pump Mp C3004 C3504 C4504 C5504 C6004 - Printer Parts - AliExpress
Amazon.com: MADE IN USA TONER Compatible Replacement for Ricoh MP C3003 MP C3004 MP C3504 MP C3004ex MP C3504ex (2 x Black, 1 x Cyan, 1 x Yellow, 1 x Magenta- 5 Pack) : Office Products
Ricoh MP C3003/C3503/C3004/C3504 Magenta High Yield Original Genuine O – Absolute Toner