Genuine OEM Ricoh P C301W Toners
The P C301W has a separate Type 220 bottle to collect used toner; it doesn't supply the toner that prints your documents. If that collector is full, a new M C250H toner cartridge won't take its place.
Toner Buzz carries genuine Ricoh M C250H black and cyan toner, plus the separate Type 220 waste bottle. Choose 408336 for black or 408337 for cyan. The 406043 bottle is the maintenance purchase for waste collection, not a black or color toner cartridge.