Canon PIXMA MX725 printer (Twyford RG10)

I am hoping that someone has a broken Canon Pixma printer, that still has a working "print head".

Specifically, one of the following models (which has print head part number is QY6-0086) ...

    PIXMA MX Series: MX720, MX721, MX722, MX725, MX726, MX727, MX728, MX920, MX922, MX924, MX925, MX926, MX927, MX928

    PIXMA iX Series: iX6770, iX6780, iX6810, iX6820, iX6840, iX6850, iX6880
Can you help with this request?
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