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Canon GX7120 Supplies
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Ink Cartridges, Maintenance Kits and Parts
5 Items
Frequently Asked Questions
The GX7120 uses a single toner cartridge, CNM 4234A003AA (CNM GPR-4). CNM 4234A003AA yields 33000 pages.
The CNM 4234A003AA cartridge has an approximate yield of 33000 pages.
When the GX7120 throws a "Supply Problem" error, the printer often simply can't read the cartridge chip. Give it a full power-cycle, take the cartridge out and put it back securely, and lightly buff the metal contacts with a dry, lint-free cloth. If it persists after all that, the cartridge is likely worn — install CNM 4234A003AA.