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Reset CANON PG40 PG41 ink counter cartrige

Try this
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Power off printer
Hold down STOP/RESET button then Press and Hold down Power button
Keep Power button down and Release STOP/RESET button
Push STOP/RESET button twice
Wait 20-30 seconds - our LED showed Idle
Push STOP/RESET button four times
Push Power button twice
Power off
Next time the printer is started the waste count will have been reset

Available link for download