MP830 printhead error message

[Maryruthmarks]

After I put in a large black cartridge in my MP830 printer, it comes up with a message saying 

"The type of printhead is incorrect.  Install the correct print head"

I did nothing different except put in new black ink cartridge (small one) then needed the large one done and had to wait for a delivery from Staples for the larger cartridge.  So installed large black cartridge and error message as above.

I have removed the printhead and reinstalled it according to Karl1, product expert, have turned it on and off; repeated the printhead reinstall and same message as in paragraph 1.

New printheads are $249 which is ridiculous and all this seems to be a problem with others with this product.  

Help please. 

[poppabear]

I had posted some time ago that I had corrected my problem by sequentally powering down and then repowering my printer and computer.  As it turned out the fix was temporary and the error message came back.  I finally corrected the problem by throwing the printer out and replacing it with a HP laser printer.  Not likely I will go back to Canon in the forseeable future.