Reset printers and cartridge.
Printers problem solving,tips, tricks and tutorial.
Where do I find the cartridge?
I replaced all ink carts with OEM, cleaned printhead and check'd elec contacts--still getting U043 code
When I removed the ink tanks in response to this code, found that there was an accumulation of ink on the contacts in the print cartridge, which I assume was short circuiting the chip reader. When I cleaned out this ink using 3 or 4 cotton tips, the error message stopped.
Check the actual pins on the front of the cartridge carrier, they might be bent. If so, ever so slightly bend them back to the original position. If they are broken, contact Canon. You'll probably be buying a new printer.
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