Toner Cartridges, Maintenance Kits and Parts

4 Items
Genuine Imaging Unit 20,000 pages
Genuine Drum 20,000 pages
The EP2121 uses KNI MNL 8931608 and KNI MNL 8931602 toner cartridges. KNI MNL 8931608 yields 6000 pages; KNI MNL 8931602 yields 1500 pages.
KNI MNL 8931602 prints 1500 pages, KNI MNL 8931608 prints 6000 pages. Choose KNI MNL 8931608 for high-volume printing (lower cost per page); KNI MNL 8931602 costs less upfront for occasional use.
The KNI MNL 8931608 cartridge has an approximate yield of 6000 pages.
Yes — the EP2121 uses a replaceable imaging drum: KNI MNL 4436200, KNI MNL 4436210.
The "Supply Problem" notice on the EP2121 is typically a recognition fault, not a defective cartridge. Start by turning the printer off for 30 seconds. Reseat the cartridge, clean its chip contacts with a dry cloth, then power back on. If nothing changes, the fix is a fresh KNI MNL 8931608.