My Pixma MX892 has the u052 error for incorrect printhead. I have tried reseating the cartridges

[goldminer3]

My Pixma MX892 has the u052 error for incorrect printhead.  I have tried reseating the cartridges and powering down for 10 minutes.  How do i remove the printhead to reseat it?  I can lift the locking bar, but nothing moves.

[Ramona]

Hi goldminer3,

To remove and reseat the ink tanks and print head in the unit, please follow the steps located here.  If you still experience the error after removing/reseating the ink tanks and print head, the printer will require servicing.  Please call or email us using one of the methods on the Contact Us page to obtain your servicing options.