Toner Cartridges, Maintenance Kits and Parts

One Item
The EP7090S uses a single toner cartridge, KNI 947806. KNI 947806 yields 33000 pages.
The KNI 947806 cartridge has an approximate yield of 33000 pages.
The "Supply Problem" notice on the EP7090S 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 947806.