Amazon.com: Genuine Ricoh 842251, 842252, 842253, 842254 Toner Cartridges (1 Set of 4) for Ricoh IM C3500 / C3000 + A Free Car Air Fresher : Office Products
Color Toner Cartridge Mpc5501 Compatible For Ricoh Mpc4501,mpc5501 23k/17k - Toner Cartridges - AliExpress
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Toner sensor fits for Ricoh MPC3001/3501/4501/5501/3002/3502/4502/5502 | eBay