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General discussion

Canon Printer S750 blinking light codes

Aug 17, 2006 12:31PM PDT

My Canon Printer S750 was printing fine but suddenly gave a "Cartridge Unknown" error message and the printer started blinking one green then seven orange lights, continuing in this bliking mode. I tried an online waste tank counter reset code which worked for one printed page then went back to the blinking. I had already tried rebooting the computer and turning the printer off an on. Any ideas, short of replacing the printer head?

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