The 5501 Support Code means an ink tank wasn't recognized by the printer.
You can check a few things to troubleshoot the error:
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Are you using the correct ink tank? Installing used ink tanks may clog the nozzles. Find out which ink tanks to use.
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Are you using a third-party product? Doing so may cause printing problems.
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Are the ink tanks properly seated?
If your product issue isn't resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your additional options.