A common experience among users of various Canon inkjet printers. The lawsuit settlement is close to being finalized so join soon.
Canon USA Inc Consumer Class Action and
http://www.federmanlaw.com/Websites/federmanlaw/images/QUESTIONNAIRE.pdf
"...at least 16 different Canon printer models have been identified that display an error message of "U052: Wrong Printhead Error," after limited use. This error indicates that the printer does not recognize the printhead, or that the printhead itself is faulty, but disables all functions of the printer, including scanning and facsimile capabilities, rendering the printer unsuitable for its intended purpose and use."
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